/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product10.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 16:50:02,017 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 16:50:02,021 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 16:50:02,062 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 16:50:02,063 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 16:50:02,071 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 16:50:02,073 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 16:50:02,076 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 16:50:02,079 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 16:50:02,082 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 16:50:02,083 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 16:50:02,085 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 16:50:02,086 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 16:50:02,089 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 16:50:02,092 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 16:50:02,094 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 16:50:02,096 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 16:50:02,097 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 16:50:02,099 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 16:50:02,105 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 16:50:02,109 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 16:50:02,110 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 16:50:02,111 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 16:50:02,112 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 16:50:02,125 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 16:50:02,125 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 16:50:02,126 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 16:50:02,127 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 16:50:02,127 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 16:50:02,128 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 16:50:02,128 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 16:50:02,130 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 16:50:02,131 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 16:50:02,132 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 16:50:02,133 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 16:50:02,133 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 16:50:02,133 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 16:50:02,134 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 16:50:02,134 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 16:50:02,135 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 16:50:02,137 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 16:50:02,138 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-24 16:50:02,178 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 16:50:02,178 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 16:50:02,179 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 16:50:02,180 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 16:50:02,180 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 16:50:02,180 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 16:50:02,180 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 16:50:02,181 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 16:50:02,181 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 16:50:02,181 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 16:50:02,181 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 16:50:02,181 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 16:50:02,182 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 16:50:02,182 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 16:50:02,182 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 16:50:02,182 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 16:50:02,182 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 16:50:02,183 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 16:50:02,183 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 16:50:02,183 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 16:50:02,183 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 16:50:02,183 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 16:50:02,184 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 16:50:02,184 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 16:50:02,184 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 16:50:02,184 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 16:50:02,184 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 16:50:02,185 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 16:50:02,185 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 16:50:02,185 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;log-additional-information=true; [2020-09-24 16:50:02,636 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 16:50:02,652 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 16:50:02,657 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 16:50:02,659 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 16:50:02,659 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 16:50:02,661 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product10.cil.c [2020-09-24 16:50:02,758 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8acd7ffa4/78f3cda54eb44d09b24e416d087bcbe4/FLAGeb32e97a8 [2020-09-24 16:50:03,396 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 16:50:03,397 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product10.cil.c [2020-09-24 16:50:03,415 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8acd7ffa4/78f3cda54eb44d09b24e416d087bcbe4/FLAGeb32e97a8 [2020-09-24 16:50:03,664 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8acd7ffa4/78f3cda54eb44d09b24e416d087bcbe4 [2020-09-24 16:50:03,676 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 16:50:03,683 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 16:50:03,684 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 16:50:03,684 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 16:50:03,689 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 16:50:03,690 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:50:03" (1/1) ... [2020-09-24 16:50:03,695 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11967da3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:50:03, skipping insertion in model container [2020-09-24 16:50:03,695 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:50:03" (1/1) ... [2020-09-24 16:50:03,704 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 16:50:03,775 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 16:50:04,181 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 16:50:04,204 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 16:50:04,417 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 16:50:04,457 INFO L208 MainTranslator]: Completed translation [2020-09-24 16:50:04,458 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:50:04 WrapperNode [2020-09-24 16:50:04,458 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 16:50:04,459 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 16:50:04,459 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 16:50:04,459 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 16:50:04,474 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:50:04" (1/1) ... [2020-09-24 16:50:04,474 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:50:04" (1/1) ... [2020-09-24 16:50:04,496 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:50:04" (1/1) ... [2020-09-24 16:50:04,497 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:50:04" (1/1) ... [2020-09-24 16:50:04,527 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:50:04" (1/1) ... [2020-09-24 16:50:04,538 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:50:04" (1/1) ... [2020-09-24 16:50:04,543 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:50:04" (1/1) ... [2020-09-24 16:50:04,551 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 16:50:04,552 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 16:50:04,552 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 16:50:04,552 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 16:50:04,554 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:50:04" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 16:50:04,648 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 16:50:04,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 16:50:04,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 16:50:04,650 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 16:50:04,650 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 16:50:04,650 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 16:50:04,650 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 16:50:04,651 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 16:50:04,651 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 16:50:04,652 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 16:50:04,652 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 16:50:04,652 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 16:50:04,652 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 16:50:04,653 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 16:50:04,653 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 16:50:04,654 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 16:50:04,654 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 16:50:04,655 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 16:50:04,655 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 16:50:04,656 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 16:50:04,656 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 16:50:04,656 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 16:50:04,656 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 16:50:04,656 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__base [2020-09-24 16:50:04,657 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 16:50:04,658 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 16:50:04,658 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 16:50:04,658 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 16:50:04,658 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 16:50:04,658 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-24 16:50:04,658 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-24 16:50:04,659 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 16:50:04,659 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 16:50:04,659 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 16:50:04,659 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 16:50:04,659 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 16:50:04,659 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 16:50:04,660 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 16:50:04,660 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 16:50:04,660 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 16:50:04,660 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 16:50:04,660 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 16:50:04,660 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 16:50:04,660 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 16:50:04,661 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 16:50:04,661 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 16:50:04,661 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 16:50:04,661 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 16:50:04,661 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 16:50:04,661 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 16:50:04,661 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 16:50:04,662 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 16:50:04,662 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 16:50:04,662 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 16:50:04,662 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 16:50:04,663 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 16:50:04,663 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 16:50:04,663 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 16:50:04,663 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 16:50:04,663 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 16:50:04,664 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 16:50:04,664 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 16:50:04,664 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 16:50:04,664 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 16:50:04,664 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 16:50:04,664 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 16:50:04,665 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 16:50:04,665 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-24 16:50:04,665 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 16:50:04,665 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 16:50:04,665 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 16:50:04,666 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 16:50:04,667 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 16:50:04,667 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 16:50:04,668 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 16:50:04,668 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-24 16:50:04,668 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 16:50:04,668 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__base [2020-09-24 16:50:04,669 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 16:50:04,669 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 16:50:04,669 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 16:50:04,669 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 16:50:04,670 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 16:50:04,670 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 16:50:04,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 16:50:04,671 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 16:50:05,834 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 16:50:05,834 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 16:50:05,842 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:50:05 BoogieIcfgContainer [2020-09-24 16:50:05,842 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 16:50:05,844 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 16:50:05,844 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 16:50:05,848 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 16:50:05,849 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 04:50:03" (1/3) ... [2020-09-24 16:50:05,850 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@445595cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:50:05, skipping insertion in model container [2020-09-24 16:50:05,850 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:50:04" (2/3) ... [2020-09-24 16:50:05,851 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@445595cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:50:05, skipping insertion in model container [2020-09-24 16:50:05,851 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:50:05" (3/3) ... [2020-09-24 16:50:05,853 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product10.cil.c [2020-09-24 16:50:05,867 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 16:50:05,880 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 16:50:05,905 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 16:50:05,945 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 16:50:05,945 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 16:50:05,945 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 16:50:05,946 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 16:50:05,946 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 16:50:05,946 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 16:50:05,946 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 16:50:05,946 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 16:50:05,980 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states. [2020-09-24 16:50:05,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-24 16:50:05,997 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:50:05,998 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 16:50:05,999 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:50:06,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:50:06,007 INFO L82 PathProgramCache]: Analyzing trace with hash -350196146, now seen corresponding path program 1 times [2020-09-24 16:50:06,018 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:50:06,019 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1706331578] [2020-09-24 16:50:06,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:50:06,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:50:06,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:50:06,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:50:08,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:50:11,740 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:50:11,740 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-24 16:50:11,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 16:50:11,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5339 [2020-09-24 16:50:11,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:50:11,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:50:11,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-24 16:50:11,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:50:11,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 16:50:12,174 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 16:50:12,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:50:12,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:50:12,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:50:12,364 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:50:12,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 16:50:12,365 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:50:12,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 161 [2020-09-24 16:50:12,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:50:12,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:50:12,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:50:12,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:50:12,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 9 [2020-09-24 16:50:12,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 16:50:12,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:50:12,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:50:12,469 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:50:12,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:50:12,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:50:12,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:50:12,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:50:12,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:50:12,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:50:12,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:50:12,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:50:12,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 16:50:12,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:50:12,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:50:12,478 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:50:12,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:50:12,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:50:12,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:50:12,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:50:12,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:50:12,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:50:12,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:50:12,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:50:12,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 16:50:12,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:50:12,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:50:12,491 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:50:12,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:50:12,492 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:50:12,492 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 16:50:12,492 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:50:12,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:50:12,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:50:12,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:50:12,493 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:50:12,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 16:50:12,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:50:12,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:50:12,501 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:50:12,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:50:12,502 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:50:12,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:50:12,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:50:12,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:50:12,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:50:12,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:50:12,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:50:12,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 16:50:12,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:50:12,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:50:12,513 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:50:12,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:50:12,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:50:12,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 16:50:12,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:50:12,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:50:12,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 16:50:12,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:50:12,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:50:12,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 16:50:12,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:50:12,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:50:12,525 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:50:12,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:50:12,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:50:12,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:50:12,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:50:12,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:50:12,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 16:50:12,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:50:12,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:50:12,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-24 16:50:12,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:50:12,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:50:12,538 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:50:12,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:50:12,538 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:50:12,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:50:12,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:50:12,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:50:12,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 16:50:12,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:50:12,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:50:12,577 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 16:50:12,578 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1706331578] [2020-09-24 16:50:12,580 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:50:12,581 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 16:50:12,582 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307449714] [2020-09-24 16:50:12,592 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 16:50:12,593 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:50:12,612 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 16:50:12,613 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 16:50:12,616 INFO L87 Difference]: Start difference. First operand 272 states. Second operand 3 states. [2020-09-24 16:50:13,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:50:13,771 INFO L93 Difference]: Finished difference Result 374 states and 448 transitions. [2020-09-24 16:50:13,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 16:50:13,773 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-09-24 16:50:13,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:50:13,794 INFO L225 Difference]: With dead ends: 374 [2020-09-24 16:50:13,795 INFO L226 Difference]: Without dead ends: 243 [2020-09-24 16:50:13,801 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 16:50:13,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2020-09-24 16:50:13,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 205. [2020-09-24 16:50:13,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 205 states. [2020-09-24 16:50:13,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 219 transitions. [2020-09-24 16:50:13,917 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 219 transitions. Word has length 153 [2020-09-24 16:50:13,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:50:13,918 INFO L479 AbstractCegarLoop]: Abstraction has 205 states and 219 transitions. [2020-09-24 16:50:13,918 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 16:50:13,919 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 219 transitions. [2020-09-24 16:50:13,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-09-24 16:50:13,928 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:50:13,928 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 16:50:13,932 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 16:50:13,932 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:50:13,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:50:13,933 INFO L82 PathProgramCache]: Analyzing trace with hash 1301465933, now seen corresponding path program 1 times [2020-09-24 16:50:13,934 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:50:13,934 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1019675480] [2020-09-24 16:50:13,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:50:14,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:50:14,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:50:14,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:50:15,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:50:21,042 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:50:21,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-24 16:50:21,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 16:50:21,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7035 [2020-09-24 16:50:21,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:50:21,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:50:21,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-24 16:50:21,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 16:50:21,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:50:21,332 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 16:50:21,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:50:21,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:50:21,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:50:21,454 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:50:21,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 16:50:21,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:50:21,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-09-24 16:50:21,455 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:50:21,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:50:21,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:50:21,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:50:21,456 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:50:21,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 16:50:21,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:50:21,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:50:21,497 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:50:21,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:50:21,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:50:21,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:50:21,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:50:21,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:50:21,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:50:21,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:50:21,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:50:21,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 16:50:21,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:50:21,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:50:21,503 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:50:21,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:50:21,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:50:21,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:50:21,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:50:21,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:50:21,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:50:21,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:50:21,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:50:21,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 16:50:21,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:50:21,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:50:21,513 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:50:21,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:50:21,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:50:21,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 16:50:21,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:50:21,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:50:21,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:50:21,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:50:21,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:50:21,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 16:50:21,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:50:21,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:50:21,520 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:50:21,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:50:21,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:50:21,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:50:21,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:50:21,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:50:21,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:50:21,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:50:21,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:50:21,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-09-24 16:50:21,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:50:21,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:50:21,526 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:50:21,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:50:21,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:50:21,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:50:21,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:50:21,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:50:21,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 16:50:21,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:50:21,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:50:21,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-24 16:50:21,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:50:21,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:50:21,533 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:50:21,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:50:21,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:50:21,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:50:21,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:50:21,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:50:21,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 16:50:21,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:50:21,535 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:50:21,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-24 16:50:21,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:50:21,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:50:21,540 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:50:21,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:50:21,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:50:21,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:50:21,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:50:21,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:50:21,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 16:50:21,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:50:21,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:50:21,571 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 16:50:21,572 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1019675480] [2020-09-24 16:50:21,572 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:50:21,572 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 16:50:21,573 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218514791] [2020-09-24 16:50:21,577 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 16:50:21,577 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:50:21,578 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 16:50:21,578 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 16:50:21,581 INFO L87 Difference]: Start difference. First operand 205 states and 219 transitions. Second operand 4 states. [2020-09-24 16:50:22,330 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 16:50:22,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:50:22,969 INFO L93 Difference]: Finished difference Result 287 states and 319 transitions. [2020-09-24 16:50:22,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 16:50:22,974 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-09-24 16:50:22,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:50:22,981 INFO L225 Difference]: With dead ends: 287 [2020-09-24 16:50:22,981 INFO L226 Difference]: Without dead ends: 226 [2020-09-24 16:50:22,983 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-24 16:50:22,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2020-09-24 16:50:23,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 195. [2020-09-24 16:50:23,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 195 states. [2020-09-24 16:50:23,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 206 transitions. [2020-09-24 16:50:23,019 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 206 transitions. Word has length 154 [2020-09-24 16:50:23,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:50:23,020 INFO L479 AbstractCegarLoop]: Abstraction has 195 states and 206 transitions. [2020-09-24 16:50:23,020 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 16:50:23,020 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 206 transitions. [2020-09-24 16:50:23,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-09-24 16:50:23,022 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:50:23,023 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 16:50:23,023 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 16:50:23,023 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:50:23,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:50:23,024 INFO L82 PathProgramCache]: Analyzing trace with hash 351008882, now seen corresponding path program 1 times [2020-09-24 16:50:23,024 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:50:23,024 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1961798499] [2020-09-24 16:50:23,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:50:23,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:50:23,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:50:23,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:50:26,170 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:50:26,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 200 [2020-09-24 16:50:26,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 16:50:26,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3088 [2020-09-24 16:50:26,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:50:26,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-24 16:50:26,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-24 16:50:26,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-09-24 16:50:26,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:50:26,552 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 16:50:26,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:50:26,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:50:26,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:50:26,815 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:50:26,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 16:50:26,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:50:26,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 229 [2020-09-24 16:50:26,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:50:26,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:50:26,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:50:26,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-24 16:50:26,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:50:26,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 16:50:26,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:50:26,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:50:26,861 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:50:26,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:50:26,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:50:26,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:50:26,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:50:26,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:50:26,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:50:26,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 16:50:26,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:50:26,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 16:50:26,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:50:26,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:50:26,868 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:50:26,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:50:26,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:50:26,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:50:26,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:50:26,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:50:26,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:50:26,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 16:50:26,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:50:26,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 16:50:26,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:50:26,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:50:26,880 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:50:26,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:50:26,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:50:26,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 16:50:26,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:50:26,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:50:26,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:50:26,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 16:50:26,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:50:26,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 16:50:26,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:50:26,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:50:26,888 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:50:26,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:50:26,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:50:26,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:50:26,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:50:26,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:50:26,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:50:26,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 16:50:26,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:50:26,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-24 16:50:26,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:50:26,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:50:26,914 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:50:26,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 16:50:26,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:50:26,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 16:50:26,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:50:26,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:50:26,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:50:26,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 16:50:26,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:50:26,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-24 16:50:26,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:50:26,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:50:26,923 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:50:26,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:50:26,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:50:26,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 16:50:26,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:50:26,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:50:26,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:50:26,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 16:50:26,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:50:26,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-09-24 16:50:26,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:50:26,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:50:26,937 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:50:26,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:50:26,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:50:26,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 16:50:26,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:50:26,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 16:50:26,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:50:26,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 16:50:26,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:50:26,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-09-24 16:50:27,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:50:27,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:50:27,003 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:50:27,004 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:50:27,004 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:50:27,004 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:50:27,004 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:50:27,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:50:27,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 16:50:27,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:50:27,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:50:27,041 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 16:50:27,042 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1961798499] [2020-09-24 16:50:27,042 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:50:27,042 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 16:50:27,043 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514106325] [2020-09-24 16:50:27,043 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 16:50:27,044 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:50:27,044 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 16:50:27,044 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 16:50:27,045 INFO L87 Difference]: Start difference. First operand 195 states and 206 transitions. Second operand 9 states. [2020-09-24 16:50:27,591 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 16:50:28,928 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 16:50:29,252 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 16:50:29,593 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 16:50:29,938 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 16:50:30,255 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 16:50:30,603 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 16:50:30,925 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 16:50:31,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:50:31,407 INFO L93 Difference]: Finished difference Result 425 states and 500 transitions. [2020-09-24 16:50:31,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-24 16:50:31,407 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 167 [2020-09-24 16:50:31,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:50:31,413 INFO L225 Difference]: With dead ends: 425 [2020-09-24 16:50:31,413 INFO L226 Difference]: Without dead ends: 340 [2020-09-24 16:50:31,415 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-09-24 16:50:31,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2020-09-24 16:50:31,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 270. [2020-09-24 16:50:31,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 270 states. [2020-09-24 16:50:31,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 295 transitions. [2020-09-24 16:50:31,466 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 295 transitions. Word has length 167 [2020-09-24 16:50:31,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:50:31,466 INFO L479 AbstractCegarLoop]: Abstraction has 270 states and 295 transitions. [2020-09-24 16:50:31,466 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 16:50:31,467 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 295 transitions. [2020-09-24 16:50:31,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-09-24 16:50:31,470 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:50:31,470 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 16:50:31,470 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 16:50:31,471 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:50:31,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:50:31,471 INFO L82 PathProgramCache]: Analyzing trace with hash -1230628687, now seen corresponding path program 1 times [2020-09-24 16:50:31,471 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:50:31,471 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [474717739] [2020-09-24 16:50:31,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:50:31,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:50:31,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:50:31,928 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:50:31,929 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 207 [2020-09-24 16:50:31,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:50:31,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 402 [2020-09-24 16:50:31,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:50:31,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:50:31,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 153 [2020-09-24 16:50:31,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 16:50:31,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:50:32,234 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 16:50:32,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:50:32,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:50:32,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:50:32,378 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:50:32,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 16:50:32,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:50:32,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 135 [2020-09-24 16:50:32,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:50:32,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:50:32,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:50:32,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:50:32,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:50:32,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 16:50:32,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:50:32,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:50:32,412 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:50:32,412 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:50:32,413 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:50:32,413 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:50:32,413 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:50:32,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:50:32,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:50:32,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:50:32,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:50:32,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 16:50:32,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:50:32,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:50:32,417 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:50:32,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:50:32,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:50:32,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:50:32,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:50:32,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:50:32,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:50:32,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:50:32,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:50:32,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 16:50:32,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:50:32,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:50:32,424 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:50:32,425 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:50:32,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:50:32,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:50:32,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:50:32,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:50:32,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:50:32,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:50:32,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:50:32,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 16:50:32,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:50:32,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:50:32,430 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:50:32,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:50:32,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:50:32,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:50:32,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:50:32,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:50:32,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:50:32,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:50:32,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:50:32,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-24 16:50:32,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:50:32,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:50:32,443 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:50:32,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 16:50:32,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:50:32,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:50:32,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:50:32,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:50:32,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:50:32,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:50:32,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:50:32,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 16:50:32,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:50:32,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:50:32,461 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:50:32,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 16:50:32,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:50:32,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 16:50:32,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:50:32,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:50:32,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:50:32,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-24 16:50:32,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:50:32,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-09-24 16:50:32,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:50:32,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:50:32,468 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:50:32,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:50:32,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:50:32,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:50:32,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:50:32,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:50:32,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 16:50:32,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:50:32,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:50:32,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-09-24 16:50:32,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:50:32,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:50:32,475 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:50:32,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:50:32,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:50:32,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:50:32,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:50:32,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:50:32,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 16:50:32,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:50:32,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:50:32,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-09-24 16:50:32,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:50:32,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:50:32,481 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:50:32,481 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:50:32,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:50:32,481 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:50:32,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:50:32,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:50:32,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 16:50:32,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:50:32,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:50:32,513 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 16:50:32,513 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [474717739] [2020-09-24 16:50:32,514 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:50:32,514 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 16:50:32,514 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257945937] [2020-09-24 16:50:32,515 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 16:50:32,515 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:50:32,515 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 16:50:32,515 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-24 16:50:32,516 INFO L87 Difference]: Start difference. First operand 270 states and 295 transitions. Second operand 6 states. [2020-09-24 16:50:32,993 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 16:50:33,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:50:33,946 INFO L93 Difference]: Finished difference Result 496 states and 584 transitions. [2020-09-24 16:50:33,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-24 16:50:33,946 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 172 [2020-09-24 16:50:33,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:50:33,950 INFO L225 Difference]: With dead ends: 496 [2020-09-24 16:50:33,950 INFO L226 Difference]: Without dead ends: 336 [2020-09-24 16:50:33,952 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-24 16:50:33,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336 states. [2020-09-24 16:50:33,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336 to 270. [2020-09-24 16:50:33,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 270 states. [2020-09-24 16:50:33,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 292 transitions. [2020-09-24 16:50:33,995 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 292 transitions. Word has length 172 [2020-09-24 16:50:33,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:50:33,995 INFO L479 AbstractCegarLoop]: Abstraction has 270 states and 292 transitions. [2020-09-24 16:50:33,995 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 16:50:33,995 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 292 transitions. [2020-09-24 16:50:33,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2020-09-24 16:50:33,998 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:50:33,998 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 16:50:33,999 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 16:50:33,999 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:50:33,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:50:33,999 INFO L82 PathProgramCache]: Analyzing trace with hash -1340891089, now seen corresponding path program 1 times [2020-09-24 16:50:33,999 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:50:34,000 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [675145540] [2020-09-24 16:50:34,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:50:34,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-24 16:50:34,061 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-24 16:50:34,061 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-24 16:50:34,066 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 16:50:34,093 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 04:50:34 BoogieIcfgContainer [2020-09-24 16:50:34,093 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 16:50:34,095 INFO L168 Benchmark]: Toolchain (without parser) took 30417.12 ms. Allocated memory was 148.9 MB in the beginning and 560.5 MB in the end (delta: 411.6 MB). Free memory was 103.7 MB in the beginning and 313.3 MB in the end (delta: -209.6 MB). Peak memory consumption was 202.0 MB. Max. memory is 7.1 GB. [2020-09-24 16:50:34,096 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 148.9 MB. Free memory was 123.4 MB in the beginning and 123.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-24 16:50:34,097 INFO L168 Benchmark]: CACSL2BoogieTranslator took 774.59 ms. Allocated memory was 148.9 MB in the beginning and 205.5 MB in the end (delta: 56.6 MB). Free memory was 103.1 MB in the beginning and 174.7 MB in the end (delta: -71.6 MB). Peak memory consumption was 25.3 MB. Max. memory is 7.1 GB. [2020-09-24 16:50:34,098 INFO L168 Benchmark]: Boogie Preprocessor took 92.33 ms. Allocated memory is still 205.5 MB. Free memory was 174.7 MB in the beginning and 170.8 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. [2020-09-24 16:50:34,099 INFO L168 Benchmark]: RCFGBuilder took 1290.77 ms. Allocated memory was 205.5 MB in the beginning and 235.4 MB in the end (delta: 29.9 MB). Free memory was 170.8 MB in the beginning and 179.0 MB in the end (delta: -8.3 MB). Peak memory consumption was 81.4 MB. Max. memory is 7.1 GB. [2020-09-24 16:50:34,100 INFO L168 Benchmark]: TraceAbstraction took 28249.25 ms. Allocated memory was 235.4 MB in the beginning and 560.5 MB in the end (delta: 325.1 MB). Free memory was 177.7 MB in the beginning and 313.3 MB in the end (delta: -135.6 MB). Peak memory consumption was 189.4 MB. Max. memory is 7.1 GB. [2020-09-24 16:50:34,104 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 148.9 MB. Free memory was 123.4 MB in the beginning and 123.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 774.59 ms. Allocated memory was 148.9 MB in the beginning and 205.5 MB in the end (delta: 56.6 MB). Free memory was 103.1 MB in the beginning and 174.7 MB in the end (delta: -71.6 MB). Peak memory consumption was 25.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 92.33 ms. Allocated memory is still 205.5 MB. Free memory was 174.7 MB in the beginning and 170.8 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1290.77 ms. Allocated memory was 205.5 MB in the beginning and 235.4 MB in the end (delta: 29.9 MB). Free memory was 170.8 MB in the beginning and 179.0 MB in the end (delta: -8.3 MB). Peak memory consumption was 81.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 28249.25 ms. Allocated memory was 235.4 MB in the beginning and 560.5 MB in the end (delta: 325.1 MB). Free memory was 177.7 MB in the beginning and 313.3 MB in the end (delta: -135.6 MB). Peak memory consumption was 189.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 168]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L84] int waterLevel = 1; [L85] int methaneLevelCritical = 0; [L342] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L613] int pumpRunning = 0; [L614] int systemActive = 1; [L781] int cleanupTimeShifts = 4; [L854] int retValue_acc ; [L855] int tmp ; [L859] FCALL select_helpers() [L860] FCALL select_features() [L861] CALL, EXPR valid_product() [L69] int retValue_acc ; [L72] retValue_acc = 1 [L73] return (retValue_acc); [L861] RET, EXPR valid_product() [L861] tmp = valid_product() [L863] COND TRUE \read(tmp) [L865] FCALL setup() [L866] CALL runTest() [L848] CALL test() [L543] int splverifierCounter ; [L544] int tmp ; [L545] int tmp___0 ; [L546] int tmp___1 ; [L547] int tmp___2 ; [L550] splverifierCounter = 0 [L552] COND TRUE 1 [L554] COND TRUE splverifierCounter < 4 [L560] tmp = __VERIFIER_nondet_int() [L562] COND TRUE \read(tmp) [L564] CALL waterRise() [L102] COND TRUE waterLevel < 2 [L103] waterLevel = waterLevel + 1 [L564] RET waterRise() [L570] tmp___0 = __VERIFIER_nondet_int() [L572] COND FALSE !(\read(tmp___0)) [L580] tmp___2 = __VERIFIER_nondet_int() [L582] COND TRUE \read(tmp___2) [L584] CALL startSystem() [L742] systemActive = 1 [L584] RET startSystem() [L597] CALL timeShift() [L621] COND FALSE !(\read(pumpRunning)) [L628] COND TRUE \read(systemActive) [L630] FCALL processEnvironment() [L636] CALL __utac_acc__Specification3_spec__1() [L748] int tmp ; [L749] int tmp___0 ; [L750] int tmp___1 ; [L754] CALL, EXPR isMethaneLevelCritical() [L123] int retValue_acc ; [L126] retValue_acc = methaneLevelCritical [L127] return (retValue_acc); [L754] RET, EXPR isMethaneLevelCritical() [L754] tmp = isMethaneLevelCritical() [L756] COND FALSE !(\read(tmp)) [L760] CALL, EXPR getWaterLevel() [L155] int retValue_acc ; [L158] retValue_acc = waterLevel [L159] return (retValue_acc); [L760] RET, EXPR getWaterLevel() [L760] tmp___0 = getWaterLevel() [L762] COND TRUE tmp___0 == 2 [L764] CALL, EXPR isPumpRunning() [L694] int retValue_acc ; [L697] retValue_acc = pumpRunning [L698] return (retValue_acc); [L764] RET, EXPR isPumpRunning() [L764] tmp___1 = isPumpRunning() [L766] COND FALSE !(\read(tmp___1)) [L770] CALL __automaton_fail() [L168] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 36 procedures, 591 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 28.1s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 8.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 761 SDtfs, 978 SDslu, 779 SDs, 0 SdLazy, 1505 SolverSat, 270 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 109 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 4.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=272occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 4 MinimizatonAttempts, 205 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 18.5s InterpolantComputationTime, 821 NumberOfCodeBlocks, 821 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 642 ConstructedInterpolants, 0 QuantifiedInterpolants, 244386 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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...