/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product12.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 18:00:29,145 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 18:00:29,149 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 18:00:29,175 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 18:00:29,175 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 18:00:29,177 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 18:00:29,178 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 18:00:29,180 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 18:00:29,182 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 18:00:29,184 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 18:00:29,185 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 18:00:29,186 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 18:00:29,186 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 18:00:29,188 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 18:00:29,189 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 18:00:29,190 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 18:00:29,191 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 18:00:29,192 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 18:00:29,194 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 18:00:29,197 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 18:00:29,198 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 18:00:29,199 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 18:00:29,201 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 18:00:29,202 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 18:00:29,204 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 18:00:29,205 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 18:00:29,205 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 18:00:29,206 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 18:00:29,207 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 18:00:29,208 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 18:00:29,208 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 18:00:29,209 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 18:00:29,210 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 18:00:29,211 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 18:00:29,213 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 18:00:29,213 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 18:00:29,214 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 18:00:29,214 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 18:00:29,214 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 18:00:29,216 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 18:00:29,217 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 18:00:29,218 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 18:00:29,245 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 18:00:29,245 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 18:00:29,246 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 18:00:29,247 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 18:00:29,247 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 18:00:29,247 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 18:00:29,247 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 18:00:29,248 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 18:00:29,248 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 18:00:29,248 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 18:00:29,248 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 18:00:29,248 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 18:00:29,249 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 18:00:29,249 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 18:00:29,249 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 18:00:29,249 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 18:00:29,249 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 18:00:29,250 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 18:00:29,250 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 18:00:29,250 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 18:00:29,250 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 18:00:29,250 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 18:00:29,251 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 18:00:29,251 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 18:00:29,251 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 18:00:29,251 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 18:00:29,252 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 18:00:29,252 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 18:00:29,252 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 18:00:29,252 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLEST;log-additional-information=true; [2020-09-24 18:00:29,724 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 18:00:29,752 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 18:00:29,759 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 18:00:29,762 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 18:00:29,763 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 18:00:29,764 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product12.cil.c [2020-09-24 18:00:29,863 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/37b28d205/dc5227a507444ad09f828244b95831ab/FLAG144e3ce76 [2020-09-24 18:00:30,512 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 18:00:30,513 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product12.cil.c [2020-09-24 18:00:30,541 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/37b28d205/dc5227a507444ad09f828244b95831ab/FLAG144e3ce76 [2020-09-24 18:00:30,829 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/37b28d205/dc5227a507444ad09f828244b95831ab [2020-09-24 18:00:30,844 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 18:00:30,850 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 18:00:30,852 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 18:00:30,852 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 18:00:30,858 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 18:00:30,859 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 06:00:30" (1/1) ... [2020-09-24 18:00:30,863 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a35e781 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:00:30, skipping insertion in model container [2020-09-24 18:00:30,864 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 06:00:30" (1/1) ... [2020-09-24 18:00:30,873 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 18:00:30,945 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 18:00:31,454 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 18:00:31,480 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 18:00:31,569 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 18:00:31,605 INFO L208 MainTranslator]: Completed translation [2020-09-24 18:00:31,606 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:00:31 WrapperNode [2020-09-24 18:00:31,606 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 18:00:31,607 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 18:00:31,607 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 18:00:31,607 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 18:00:31,626 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:00:31" (1/1) ... [2020-09-24 18:00:31,627 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:00:31" (1/1) ... [2020-09-24 18:00:31,648 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:00:31" (1/1) ... [2020-09-24 18:00:31,649 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:00:31" (1/1) ... [2020-09-24 18:00:31,682 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:00:31" (1/1) ... [2020-09-24 18:00:31,694 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:00:31" (1/1) ... [2020-09-24 18:00:31,700 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:00:31" (1/1) ... [2020-09-24 18:00:31,708 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 18:00:31,708 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 18:00:31,709 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 18:00:31,709 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 18:00:31,710 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:00:31" (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 18:00:31,805 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 18:00:31,805 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 18:00:31,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 18:00:31,806 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-24 18:00:31,806 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 18:00:31,807 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 18:00:31,807 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 18:00:31,807 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__base [2020-09-24 18:00:31,808 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 18:00:31,808 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 18:00:31,809 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 18:00:31,809 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 18:00:31,809 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 18:00:31,809 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-24 18:00:31,809 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-24 18:00:31,811 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 18:00:31,811 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 18:00:31,811 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 18:00:31,812 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 18:00:31,812 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 18:00:31,813 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 18:00:31,813 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 18:00:31,814 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 18:00:31,814 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 18:00:31,816 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 18:00:31,817 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 18:00:31,817 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 18:00:31,817 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 18:00:31,818 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 18:00:31,818 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 18:00:31,818 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 18:00:31,818 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 18:00:31,818 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 18:00:31,819 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 18:00:31,819 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 18:00:31,819 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 18:00:31,819 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 18:00:31,819 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 18:00:31,819 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 18:00:31,820 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 18:00:31,820 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 18:00:31,820 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 18:00:31,820 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 18:00:31,820 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 18:00:31,820 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-24 18:00:31,821 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 18:00:31,821 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 18:00:31,821 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-24 18:00:31,821 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-24 18:00:31,822 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 18:00:31,822 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 18:00:31,822 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 18:00:31,822 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 18:00:31,823 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 18:00:31,823 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 18:00:31,823 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 18:00:31,823 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 18:00:31,823 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 18:00:31,823 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__base [2020-09-24 18:00:31,824 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 18:00:31,824 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 18:00:31,824 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 18:00:31,824 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 18:00:31,825 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 18:00:31,825 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 18:00:31,825 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 18:00:31,825 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 18:00:31,825 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 18:00:31,826 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 18:00:31,826 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 18:00:31,827 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 18:00:31,828 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 18:00:31,828 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 18:00:31,829 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 18:00:31,829 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 18:00:31,829 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 18:00:31,829 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 18:00:31,829 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 18:00:31,829 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 18:00:31,829 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 18:00:31,830 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 18:00:31,831 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 18:00:31,831 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 18:00:31,831 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 18:00:31,831 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 18:00:31,831 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 18:00:31,832 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 18:00:31,832 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 18:00:32,972 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 18:00:32,972 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 18:00:32,979 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 06:00:32 BoogieIcfgContainer [2020-09-24 18:00:32,979 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 18:00:32,981 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 18:00:32,981 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 18:00:32,984 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 18:00:32,985 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 06:00:30" (1/3) ... [2020-09-24 18:00:32,986 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ab96d71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 06:00:32, skipping insertion in model container [2020-09-24 18:00:32,986 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:00:31" (2/3) ... [2020-09-24 18:00:32,986 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ab96d71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 06:00:32, skipping insertion in model container [2020-09-24 18:00:32,987 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 06:00:32" (3/3) ... [2020-09-24 18:00:32,989 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product12.cil.c [2020-09-24 18:00:33,001 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 18:00:33,013 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 18:00:33,036 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 18:00:33,067 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 18:00:33,068 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 18:00:33,068 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 18:00:33,068 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 18:00:33,068 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 18:00:33,069 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 18:00:33,069 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 18:00:33,069 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 18:00:33,099 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states. [2020-09-24 18:00:33,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-24 18:00:33,117 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:00:33,119 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:00:33,119 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:00:33,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:00:33,128 INFO L82 PathProgramCache]: Analyzing trace with hash 459580304, now seen corresponding path program 1 times [2020-09-24 18:00:33,140 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:00:33,140 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [755601907] [2020-09-24 18:00:33,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:00:33,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:00:33,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:00:33,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:00:35,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:00:38,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:00:38,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-24 18:00:38,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 18:00:38,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5040 [2020-09-24 18:00:38,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:00:38,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:00:38,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-24 18:00:38,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:00:38,627 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-24 18:00:39,025 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 18:00:39,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:00:39,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:00:39,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:00:39,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:00:39,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 18:00:39,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:00:39,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 123 [2020-09-24 18:00:39,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:00:39,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:00:39,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:00:39,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:00:39,169 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:00:39,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 18:00:39,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:00:39,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:00:39,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:00:39,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:00:39,251 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:00:39,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 18:00:39,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:00:39,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:00:39,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:00:39,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:00:39,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:00:39,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 18:00:39,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:00:39,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:00:39,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:00:39,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:00:39,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:00:39,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:00:39,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:00:39,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:00:39,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:00:39,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:00:39,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:00:39,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 18:00:39,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:00:39,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:00:39,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:00:39,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:00:39,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:00:39,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 18:00:39,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:00:39,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:00:39,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:00:39,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:00:39,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:00:39,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 18:00:39,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:00:39,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:00:39,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:00:39,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:00:39,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:00:39,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:00:39,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:00:39,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:00:39,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:00:39,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:00:39,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:00:39,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 18:00:39,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:00:39,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:00:39,296 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:00:39,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:00:39,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:00:39,297 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:00:39,297 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:00:39,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:00:39,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:00:39,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:00:39,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:00:39,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 18:00:39,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:00:39,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:00:39,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:00:39,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:00:39,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:00:39,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:00:39,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:00:39,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:00:39,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:00:39,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:00:39,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:00:39,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-24 18:00:39,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:00:39,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:00:39,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:00:39,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:00:39,322 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:00:39,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:00:39,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:00:39,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:00:39,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:00:39,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:00:39,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:00:39,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 18:00:39,365 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [755601907] [2020-09-24 18:00:39,367 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:00:39,367 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 18:00:39,368 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103167586] [2020-09-24 18:00:39,378 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 18:00:39,378 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:00:39,396 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 18:00:39,397 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 18:00:39,400 INFO L87 Difference]: Start difference. First operand 281 states. Second operand 3 states. [2020-09-24 18:00:40,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:00:40,783 INFO L93 Difference]: Finished difference Result 394 states and 471 transitions. [2020-09-24 18:00:40,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 18:00:40,786 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-09-24 18:00:40,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:00:40,806 INFO L225 Difference]: With dead ends: 394 [2020-09-24 18:00:40,807 INFO L226 Difference]: Without dead ends: 254 [2020-09-24 18:00:40,813 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 18:00:40,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2020-09-24 18:00:40,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 214. [2020-09-24 18:00:40,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 214 states. [2020-09-24 18:00:40,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 229 transitions. [2020-09-24 18:00:40,922 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 229 transitions. Word has length 153 [2020-09-24 18:00:40,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:00:40,923 INFO L479 AbstractCegarLoop]: Abstraction has 214 states and 229 transitions. [2020-09-24 18:00:40,923 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 18:00:40,923 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 229 transitions. [2020-09-24 18:00:40,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-09-24 18:00:40,952 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:00:40,953 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:00:40,953 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 18:00:40,953 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:00:40,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:00:40,957 INFO L82 PathProgramCache]: Analyzing trace with hash 418244228, now seen corresponding path program 1 times [2020-09-24 18:00:40,957 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:00:40,957 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2086293531] [2020-09-24 18:00:40,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:00:41,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:00:41,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:00:41,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:00:42,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:00:46,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:00:46,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-24 18:00:46,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 18:00:46,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5031 [2020-09-24 18:00:46,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:00:46,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:00:46,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-24 18:00:46,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 18:00:46,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:00:46,349 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 18:00:46,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:00:46,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:00:46,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:00:46,470 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:00:46,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 18:00:46,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:00:46,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-09-24 18:00:46,471 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:00:46,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:00:46,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:00:46,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:00:46,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:00:46,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 18:00:46,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:00:46,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:00:46,515 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:00:46,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:00:46,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:00:46,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 18:00:46,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:00:46,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:00:46,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:00:46,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:00:46,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:00:46,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 18:00:46,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:00:46,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:00:46,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:00:46,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:00:46,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:00:46,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:00:46,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:00:46,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:00:46,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:00:46,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:00:46,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:00:46,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 18:00:46,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:00:46,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:00:46,530 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:00:46,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:00:46,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:00:46,531 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:00:46,531 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:00:46,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:00:46,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:00:46,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:00:46,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:00:46,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 18:00:46,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:00:46,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:00:46,537 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:00:46,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:00:46,538 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:00:46,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:00:46,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:00:46,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:00:46,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:00:46,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:00:46,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:00:46,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-09-24 18:00:46,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:00:46,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:00:46,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:00:46,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:00:46,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:00:46,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:00:46,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:00:46,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:00:46,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:00:46,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:00:46,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:00:46,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-24 18:00:46,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:00:46,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:00:46,557 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:00:46,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:00:46,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:00:46,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:00:46,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:00:46,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:00:46,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:00:46,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:00:46,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:00:46,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-24 18:00:46,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:00:46,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:00:46,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:00:46,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:00:46,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:00:46,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:00:46,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:00:46,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:00:46,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:00:46,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:00:46,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:00:46,629 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 18:00:46,630 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2086293531] [2020-09-24 18:00:46,630 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:00:46,630 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 18:00:46,630 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304596606] [2020-09-24 18:00:46,637 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 18:00:46,637 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:00:46,638 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 18:00:46,638 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 18:00:46,638 INFO L87 Difference]: Start difference. First operand 214 states and 229 transitions. Second operand 4 states. [2020-09-24 18:00:47,263 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 18:00:47,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:00:47,966 INFO L93 Difference]: Finished difference Result 298 states and 332 transitions. [2020-09-24 18:00:47,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 18:00:47,967 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-09-24 18:00:47,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:00:47,971 INFO L225 Difference]: With dead ends: 298 [2020-09-24 18:00:47,971 INFO L226 Difference]: Without dead ends: 237 [2020-09-24 18:00:47,973 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-24 18:00:47,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2020-09-24 18:00:48,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 204. [2020-09-24 18:00:48,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 204 states. [2020-09-24 18:00:48,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 216 transitions. [2020-09-24 18:00:48,011 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 216 transitions. Word has length 154 [2020-09-24 18:00:48,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:00:48,011 INFO L479 AbstractCegarLoop]: Abstraction has 204 states and 216 transitions. [2020-09-24 18:00:48,012 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 18:00:48,012 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 216 transitions. [2020-09-24 18:00:48,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-09-24 18:00:48,015 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:00:48,015 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:00:48,015 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 18:00:48,015 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:00:48,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:00:48,016 INFO L82 PathProgramCache]: Analyzing trace with hash -1459194471, now seen corresponding path program 1 times [2020-09-24 18:00:48,016 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:00:48,016 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [654753861] [2020-09-24 18:00:48,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:00:48,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:00:48,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:00:48,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:00:51,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:00:51,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 200 [2020-09-24 18:00:51,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 18:00:51,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3070 [2020-09-24 18:00:51,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:00:51,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:00:51,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-09-24 18:00:51,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 18:00:51,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:00:51,470 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 18:00:51,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:00:51,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:00:51,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:00:51,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:00:51,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 18:00:51,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:00:51,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-09-24 18:00:51,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:00:51,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:00:51,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:00:51,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:00:51,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:00:51,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 18:00:51,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:00:51,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:00:51,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:00:51,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:00:51,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:00:51,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:00:51,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:00:51,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:00:51,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:00:51,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:00:51,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:00:51,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 18:00:51,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:00:51,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:00:51,624 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:00:51,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:00:51,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:00:51,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:00:51,624 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:00:51,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:00:51,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:00:51,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:00:51,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:00:51,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 18:00:51,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:00:51,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:00:51,632 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:00:51,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:00:51,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:00:51,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:00:51,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:00:51,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:00:51,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:00:51,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:00:51,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:00:51,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 18:00:51,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:00:51,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:00:51,639 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:00:51,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:00:51,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:00:51,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:00:51,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:00:51,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:00:51,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:00:51,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:00:51,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:00:51,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-24 18:00:51,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:00:51,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:00:51,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:00:51,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 18:00:51,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:00:51,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:00:51,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:00:51,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:00:51,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:00:51,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-24 18:00:51,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:00:51,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-24 18:00:51,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:00:51,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:00:51,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:00:51,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:00:51,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:00:51,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 18:00:51,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:00:51,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:00:51,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:00:51,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:00:51,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:00:51,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-09-24 18:00:51,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:00:51,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:00:51,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:00:51,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:00:51,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:00:51,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:00:51,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:00:51,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:00:51,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:00:51,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:00:51,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:00:51,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-09-24 18:00:51,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:00:51,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:00:51,686 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:00:51,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:00:51,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:00:51,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:00:51,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:00:51,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:00:51,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:00:51,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:00:51,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:00:51,722 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 18:00:51,723 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [654753861] [2020-09-24 18:00:51,723 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:00:51,723 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 18:00:51,724 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246007301] [2020-09-24 18:00:51,725 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 18:00:51,726 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:00:51,727 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 18:00:51,727 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-24 18:00:51,728 INFO L87 Difference]: Start difference. First operand 204 states and 216 transitions. Second operand 5 states. [2020-09-24 18:00:52,250 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 18:00:53,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:00:53,698 INFO L93 Difference]: Finished difference Result 454 states and 523 transitions. [2020-09-24 18:00:53,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 18:00:53,702 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 167 [2020-09-24 18:00:53,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:00:53,706 INFO L225 Difference]: With dead ends: 454 [2020-09-24 18:00:53,706 INFO L226 Difference]: Without dead ends: 360 [2020-09-24 18:00:53,708 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-24 18:00:53,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2020-09-24 18:00:53,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 282. [2020-09-24 18:00:53,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 282 states. [2020-09-24 18:00:53,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 305 transitions. [2020-09-24 18:00:53,761 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 305 transitions. Word has length 167 [2020-09-24 18:00:53,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:00:53,761 INFO L479 AbstractCegarLoop]: Abstraction has 282 states and 305 transitions. [2020-09-24 18:00:53,762 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 18:00:53,762 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 305 transitions. [2020-09-24 18:00:53,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2020-09-24 18:00:53,764 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:00:53,765 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] [2020-09-24 18:00:53,765 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 18:00:53,765 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:00:53,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:00:53,766 INFO L82 PathProgramCache]: Analyzing trace with hash -651029142, now seen corresponding path program 1 times [2020-09-24 18:00:53,766 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:00:53,774 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [911027855] [2020-09-24 18:00:53,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:00:53,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:00:53,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:00:55,527 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:00:55,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 205 [2020-09-24 18:00:55,528 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:00:55,528 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1698 [2020-09-24 18:00:55,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:00:55,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-24 18:00:55,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-24 18:00:55,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-09-24 18:00:55,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:00:55,887 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 18:00:55,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:00:55,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:00:55,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:00:56,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:00:56,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 18:00:56,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:00:56,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 223 [2020-09-24 18:00:56,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:00:56,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:00:56,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:00:56,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 18:00:56,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:00:56,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 18:00:56,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:00:56,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:00:56,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:00:56,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:00:56,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:00:56,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:00:56,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:00:56,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:00:56,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:00:56,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 18:00:56,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:00:56,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 18:00:56,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:00:56,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:00:56,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:00:56,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:00:56,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:00:56,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:00:56,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:00:56,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:00:56,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:00:56,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 18:00:56,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:00:56,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 18:00:56,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:00:56,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:00:56,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:00:56,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:00:56,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:00:56,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 18:00:56,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:00:56,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:00:56,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:00:56,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 18:00:56,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:00:56,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 18:00:56,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:00:56,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:00:56,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:00:56,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:00:56,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:00:56,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:00:56,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:00:56,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:00:56,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:00:56,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 18:00:56,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:00:56,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-24 18:00:56,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:00:56,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:00:56,237 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:00:56,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 18:00:56,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:00:56,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:00:56,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:00:56,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:00:56,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:00:56,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 18:00:56,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:00:56,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 18:00:56,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:00:56,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:00:56,248 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:00:56,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:00:56,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:00:56,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:00:56,255 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:00:56,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:00:56,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:00:56,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 18:00:56,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:00:56,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-09-24 18:00:56,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:00:56,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:00:56,263 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:00:56,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:00:56,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:00:56,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:00:56,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:00:56,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:00:56,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:00:56,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 18:00:56,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:00:56,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-24 18:00:56,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:00:56,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:00:56,277 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:00:56,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:00:56,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:00:56,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 18:00:56,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:00:56,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 18:00:56,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:00:56,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 18:00:56,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:00:56,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-09-24 18:00:56,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:00:56,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:00:56,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:00:56,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:00:56,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:00:56,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:00:56,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:00:56,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:00:56,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:00:56,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:00:56,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:00:56,346 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 18:00:56,347 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [911027855] [2020-09-24 18:00:56,348 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:00:56,348 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 18:00:56,349 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618073919] [2020-09-24 18:00:56,350 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 18:00:56,350 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:00:56,350 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 18:00:56,351 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 18:00:56,351 INFO L87 Difference]: Start difference. First operand 282 states and 305 transitions. Second operand 9 states. [2020-09-24 18:00:57,012 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 18:00:58,496 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 18:00:58,781 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 18:00:59,103 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 18:00:59,428 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 18:00:59,736 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 18:01:00,055 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 18:01:00,373 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 18:01:00,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:01:00,887 INFO L93 Difference]: Finished difference Result 688 states and 810 transitions. [2020-09-24 18:01:00,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-24 18:01:00,887 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 170 [2020-09-24 18:01:00,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:01:00,897 INFO L225 Difference]: With dead ends: 688 [2020-09-24 18:01:00,897 INFO L226 Difference]: Without dead ends: 516 [2020-09-24 18:01:00,899 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-09-24 18:01:00,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 516 states. [2020-09-24 18:01:00,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 516 to 437. [2020-09-24 18:01:00,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 437 states. [2020-09-24 18:01:00,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 437 states and 487 transitions. [2020-09-24 18:01:00,987 INFO L78 Accepts]: Start accepts. Automaton has 437 states and 487 transitions. Word has length 170 [2020-09-24 18:01:00,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:01:00,988 INFO L479 AbstractCegarLoop]: Abstraction has 437 states and 487 transitions. [2020-09-24 18:01:00,988 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 18:01:00,988 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states and 487 transitions. [2020-09-24 18:01:00,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2020-09-24 18:01:00,992 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:01:00,992 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] [2020-09-24 18:01:00,992 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 18:01:00,992 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:01:00,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:01:00,993 INFO L82 PathProgramCache]: Analyzing trace with hash -720155991, now seen corresponding path program 1 times [2020-09-24 18:01:00,993 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:01:00,993 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [475498590] [2020-09-24 18:01:00,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:01:01,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:01:01,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:01,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:03,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:06,043 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:01:06,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 212 [2020-09-24 18:01:06,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 18:01:06,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-09-24 18:01:06,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:01:06,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 18:01:06,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 152 [2020-09-24 18:01:06,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-09-24 18:01:06,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:01:06,374 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 18:01:06,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:01:06,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:01:06,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:06,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:01:06,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 18:01:06,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:01:06,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-09-24 18:01:06,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:01:06,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:01:06,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:01:06,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:01:06,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:01:06,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 18:01:06,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:01:06,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:06,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:01:06,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:01:06,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:01:06,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:01:06,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:01:06,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:01:06,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:01:06,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:01:06,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:01:06,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 18:01:06,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:01:06,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:06,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:01:06,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:01:06,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:01:06,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:01:06,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:01:06,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:01:06,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:01:06,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:01:06,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:01:06,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 18:01:06,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:01:06,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:06,536 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:01:06,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:01:06,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:01:06,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 18:01:06,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:01:06,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:01:06,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:01:06,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:01:06,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:01:06,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 18:01:06,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:01:06,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:06,543 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:01:06,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:01:06,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:01:06,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:01:06,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:01:06,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:01:06,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:01:06,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:01:06,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:01:06,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-24 18:01:06,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:01:06,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:06,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:01:06,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 18:01:06,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:01:06,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:01:06,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:01:06,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:01:06,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:01:06,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:01:06,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:01:06,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 18:01:06,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:01:06,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:06,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:01:06,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 18:01:06,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:01:06,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 18:01:06,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:01:06,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:01:06,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:01:06,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 18:01:06,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:01:06,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-24 18:01:06,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:01:06,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:06,593 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:01:06,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:01:06,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:01:06,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:01:06,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:01:06,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:01:06,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:01:06,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 18:01:06,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:01:06,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-09-24 18:01:06,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:01:06,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:06,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:01:06,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:01:06,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:01:06,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:01:06,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:01:06,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:01:06,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:01:06,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 18:01:06,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:01:06,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-09-24 18:01:06,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:01:06,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:06,610 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:01:06,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:01:06,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:01:06,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:01:06,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:01:06,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:01:06,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:01:06,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 18:01:06,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:01:06,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2020-09-24 18:01:06,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:01:06,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:06,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:01:06,623 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:01:06,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:01:06,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 18:01:06,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:01:06,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 18:01:06,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:01:06,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 18:01:06,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:01:06,699 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 18:01:06,699 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [475498590] [2020-09-24 18:01:06,700 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:01:06,700 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 18:01:06,700 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055399146] [2020-09-24 18:01:06,702 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 18:01:06,702 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:01:06,703 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 18:01:06,704 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-24 18:01:06,704 INFO L87 Difference]: Start difference. First operand 437 states and 487 transitions. Second operand 10 states. [2020-09-24 18:01:08,429 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 18:01:08,668 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 18:01:10,018 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 18:01:10,638 WARN L193 SmtUtils]: Spent 576.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 189 [2020-09-24 18:01:11,331 WARN L193 SmtUtils]: Spent 557.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 191 [2020-09-24 18:01:11,721 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 18:01:12,120 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 18:01:12,460 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 18:01:12,736 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 18:01:13,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:01:13,353 INFO L93 Difference]: Finished difference Result 889 states and 1047 transitions. [2020-09-24 18:01:13,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-09-24 18:01:13,354 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 175 [2020-09-24 18:01:13,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:01:13,360 INFO L225 Difference]: With dead ends: 889 [2020-09-24 18:01:13,360 INFO L226 Difference]: Without dead ends: 699 [2020-09-24 18:01:13,362 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=168, Invalid=482, Unknown=0, NotChecked=0, Total=650 [2020-09-24 18:01:13,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 699 states. [2020-09-24 18:01:13,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 699 to 592. [2020-09-24 18:01:13,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 592 states. [2020-09-24 18:01:13,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 592 states to 592 states and 664 transitions. [2020-09-24 18:01:13,453 INFO L78 Accepts]: Start accepts. Automaton has 592 states and 664 transitions. Word has length 175 [2020-09-24 18:01:13,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:01:13,453 INFO L479 AbstractCegarLoop]: Abstraction has 592 states and 664 transitions. [2020-09-24 18:01:13,454 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 18:01:13,454 INFO L276 IsEmpty]: Start isEmpty. Operand 592 states and 664 transitions. [2020-09-24 18:01:13,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2020-09-24 18:01:13,457 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:01:13,458 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] [2020-09-24 18:01:13,458 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 18:01:13,458 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:01:13,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:01:13,459 INFO L82 PathProgramCache]: Analyzing trace with hash 232069563, now seen corresponding path program 1 times [2020-09-24 18:01:13,459 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:01:13,459 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [399655973] [2020-09-24 18:01:13,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:01:13,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-24 18:01:13,525 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-24 18:01:13,525 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-24 18:01:13,531 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-24 18:01:13,559 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 06:01:13 BoogieIcfgContainer [2020-09-24 18:01:13,560 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 18:01:13,562 INFO L168 Benchmark]: Toolchain (without parser) took 42716.41 ms. Allocated memory was 139.5 MB in the beginning and 717.8 MB in the end (delta: 578.3 MB). Free memory was 102.2 MB in the beginning and 575.4 MB in the end (delta: -473.3 MB). Peak memory consumption was 105.0 MB. Max. memory is 7.1 GB. [2020-09-24 18:01:13,563 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-24 18:01:13,564 INFO L168 Benchmark]: CACSL2BoogieTranslator took 755.20 ms. Allocated memory was 139.5 MB in the beginning and 201.9 MB in the end (delta: 62.4 MB). Free memory was 101.5 MB in the beginning and 170.8 MB in the end (delta: -69.4 MB). Peak memory consumption was 25.3 MB. Max. memory is 7.1 GB. [2020-09-24 18:01:13,564 INFO L168 Benchmark]: Boogie Preprocessor took 100.95 ms. Allocated memory is still 201.9 MB. Free memory was 170.8 MB in the beginning and 166.7 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. [2020-09-24 18:01:13,565 INFO L168 Benchmark]: RCFGBuilder took 1271.15 ms. Allocated memory was 201.9 MB in the beginning and 234.9 MB in the end (delta: 33.0 MB). Free memory was 166.0 MB in the beginning and 179.3 MB in the end (delta: -13.2 MB). Peak memory consumption was 84.1 MB. Max. memory is 7.1 GB. [2020-09-24 18:01:13,566 INFO L168 Benchmark]: TraceAbstraction took 40579.18 ms. Allocated memory was 234.9 MB in the beginning and 717.8 MB in the end (delta: 482.9 MB). Free memory was 179.3 MB in the beginning and 575.4 MB in the end (delta: -396.1 MB). Peak memory consumption was 86.7 MB. Max. memory is 7.1 GB. [2020-09-24 18:01:13,570 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 755.20 ms. Allocated memory was 139.5 MB in the beginning and 201.9 MB in the end (delta: 62.4 MB). Free memory was 101.5 MB in the beginning and 170.8 MB in the end (delta: -69.4 MB). Peak memory consumption was 25.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 100.95 ms. Allocated memory is still 201.9 MB. Free memory was 170.8 MB in the beginning and 166.7 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1271.15 ms. Allocated memory was 201.9 MB in the beginning and 234.9 MB in the end (delta: 33.0 MB). Free memory was 166.0 MB in the beginning and 179.3 MB in the end (delta: -13.2 MB). Peak memory consumption was 84.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 40579.18 ms. Allocated memory was 234.9 MB in the beginning and 717.8 MB in the end (delta: 482.9 MB). Free memory was 179.3 MB in the beginning and 575.4 MB in the end (delta: -396.1 MB). Peak memory consumption was 86.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 890]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L158] int pumpRunning = 0; [L159] int systemActive = 1; [L306] int waterLevel = 1; [L307] int methaneLevelCritical = 0; [L593] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L790] int cleanupTimeShifts = 4; [L863] int retValue_acc ; [L864] int tmp ; [L868] FCALL select_helpers() [L869] FCALL select_features() [L870] CALL, EXPR valid_product() [L415] int retValue_acc ; [L418] retValue_acc = 1 [L419] return (retValue_acc); [L870] RET, EXPR valid_product() [L870] tmp = valid_product() [L872] COND TRUE \read(tmp) [L874] FCALL setup() [L875] CALL runTest() [L857] CALL test() [L85] int splverifierCounter ; [L86] int tmp ; [L87] int tmp___0 ; [L88] int tmp___1 ; [L89] int tmp___2 ; [L92] splverifierCounter = 0 [L94] COND TRUE 1 [L96] COND TRUE splverifierCounter < 4 [L102] tmp = __VERIFIER_nondet_int() [L104] COND TRUE \read(tmp) [L106] CALL waterRise() [L324] COND TRUE waterLevel < 2 [L325] waterLevel = waterLevel + 1 [L106] RET waterRise() [L112] tmp___0 = __VERIFIER_nondet_int() [L114] COND FALSE !(\read(tmp___0)) [L122] tmp___2 = __VERIFIER_nondet_int() [L124] COND TRUE \read(tmp___2) [L126] CALL startSystem() [L301] systemActive = 1 [L126] RET startSystem() [L141] CALL timeShift() [L165] COND FALSE !(\read(pumpRunning)) [L172] COND TRUE \read(systemActive) [L174] FCALL processEnvironment() [L180] CALL __utac_acc__Specification3_spec__1() [L45] int tmp ; [L46] int tmp___0 ; [L47] int tmp___1 ; [L51] CALL, EXPR isMethaneLevelCritical() [L345] int retValue_acc ; [L348] retValue_acc = methaneLevelCritical [L349] return (retValue_acc); [L51] RET, EXPR isMethaneLevelCritical() [L51] tmp = isMethaneLevelCritical() [L53] COND FALSE !(\read(tmp)) [L57] CALL, EXPR getWaterLevel() [L377] int retValue_acc ; [L380] retValue_acc = waterLevel [L381] return (retValue_acc); [L57] RET, EXPR getWaterLevel() [L57] tmp___0 = getWaterLevel() [L59] COND TRUE tmp___0 == 2 [L61] CALL, EXPR isPumpRunning() [L238] int retValue_acc ; [L241] retValue_acc = pumpRunning [L242] return (retValue_acc); [L61] RET, EXPR isPumpRunning() [L61] tmp___1 = isPumpRunning() [L63] COND FALSE !(\read(tmp___1)) [L67] CALL __automaton_fail() [L890] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 37 procedures, 597 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 40.4s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 15.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1092 SDtfs, 1339 SDslu, 1628 SDs, 0 SdLazy, 3056 SolverSat, 409 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 154 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 7.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=592occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 5 MinimizatonAttempts, 337 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 23.0s InterpolantComputationTime, 994 NumberOfCodeBlocks, 994 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 814 ConstructedInterpolants, 0 QuantifiedInterpolants, 320402 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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...