/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec5_product55.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 16:59:04,050 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 16:59:04,054 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 16:59:04,085 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 16:59:04,086 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 16:59:04,087 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 16:59:04,089 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 16:59:04,091 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 16:59:04,092 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 16:59:04,094 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 16:59:04,095 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 16:59:04,096 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 16:59:04,096 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 16:59:04,098 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 16:59:04,099 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 16:59:04,100 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 16:59:04,101 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 16:59:04,103 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 16:59:04,105 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 16:59:04,107 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 16:59:04,109 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 16:59:04,111 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 16:59:04,112 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 16:59:04,114 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 16:59:04,117 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 16:59:04,117 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 16:59:04,117 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 16:59:04,118 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 16:59:04,119 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 16:59:04,120 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 16:59:04,120 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 16:59:04,121 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 16:59:04,122 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 16:59:04,123 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 16:59:04,125 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 16:59:04,125 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 16:59:04,126 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 16:59:04,126 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 16:59:04,126 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 16:59:04,131 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 16:59:04,132 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 16:59:04,133 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 16:59:04,187 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 16:59:04,188 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 16:59:04,189 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 16:59:04,189 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 16:59:04,190 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 16:59:04,190 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 16:59:04,191 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 16:59:04,191 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 16:59:04,191 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 16:59:04,191 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 16:59:04,192 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 16:59:04,192 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 16:59:04,193 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 16:59:04,193 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 16:59:04,194 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 16:59:04,194 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 16:59:04,195 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 16:59:04,195 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 16:59:04,195 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 16:59:04,195 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 16:59:04,196 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 16:59:04,196 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 16:59:04,196 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 16:59:04,196 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 16:59:04,197 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 16:59:04,197 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 16:59:04,197 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 16:59:04,197 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 16:59:04,197 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 16:59:04,198 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 16:59:04,685 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 16:59:04,703 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 16:59:04,707 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 16:59:04,709 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 16:59:04,710 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 16:59:04,711 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product55.cil.c [2020-09-24 16:59:04,802 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/effe59c07/1e558eea37654994bd85a4df2e5d234c/FLAG8ec9d828c [2020-09-24 16:59:05,452 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 16:59:05,453 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec5_product55.cil.c [2020-09-24 16:59:05,496 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/effe59c07/1e558eea37654994bd85a4df2e5d234c/FLAG8ec9d828c [2020-09-24 16:59:05,732 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/effe59c07/1e558eea37654994bd85a4df2e5d234c [2020-09-24 16:59:05,746 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 16:59:05,753 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 16:59:05,754 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 16:59:05,754 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 16:59:05,759 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 16:59:05,760 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:59:05" (1/1) ... [2020-09-24 16:59:05,764 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@217e3fea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:59:05, skipping insertion in model container [2020-09-24 16:59:05,764 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:59:05" (1/1) ... [2020-09-24 16:59:05,774 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 16:59:05,825 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 16:59:06,361 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 16:59:06,377 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 16:59:06,474 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 16:59:06,525 INFO L208 MainTranslator]: Completed translation [2020-09-24 16:59:06,526 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:59:06 WrapperNode [2020-09-24 16:59:06,527 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 16:59:06,528 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 16:59:06,528 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 16:59:06,528 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 16:59:06,547 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:59:06" (1/1) ... [2020-09-24 16:59:06,549 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:59:06" (1/1) ... [2020-09-24 16:59:06,596 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:59:06" (1/1) ... [2020-09-24 16:59:06,596 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:59:06" (1/1) ... [2020-09-24 16:59:06,650 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:59:06" (1/1) ... [2020-09-24 16:59:06,661 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:59:06" (1/1) ... [2020-09-24 16:59:06,669 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:59:06" (1/1) ... [2020-09-24 16:59:06,677 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 16:59:06,678 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 16:59:06,678 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 16:59:06,678 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 16:59:06,680 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:59:06" (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 16:59:06,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 16:59:06,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 16:59:06,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 16:59:06,776 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 16:59:06,776 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 16:59:06,776 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 16:59:06,776 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 16:59:06,777 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 16:59:06,777 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 16:59:06,778 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 16:59:06,778 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 16:59:06,778 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 16:59:06,778 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 16:59:06,779 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 16:59:06,779 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 16:59:06,780 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 16:59:06,780 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 16:59:06,780 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 16:59:06,781 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 16:59:06,781 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 16:59:06,781 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 16:59:06,782 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 16:59:06,782 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 16:59:06,782 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 16:59:06,783 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 16:59:06,783 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 16:59:06,783 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 16:59:06,784 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-24 16:59:06,784 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 16:59:06,785 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 16:59:06,785 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 16:59:06,785 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-24 16:59:06,785 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 16:59:06,785 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 16:59:06,786 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 16:59:06,786 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 16:59:06,786 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 16:59:06,786 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 16:59:06,786 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 16:59:06,786 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-24 16:59:06,787 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-24 16:59:06,787 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2020-09-24 16:59:06,787 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2020-09-24 16:59:06,787 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2020-09-24 16:59:06,787 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 16:59:06,788 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 16:59:06,788 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 16:59:06,788 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 16:59:06,788 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 16:59:06,788 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 16:59:06,788 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 16:59:06,789 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 16:59:06,789 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 16:59:06,789 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 16:59:06,789 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 16:59:06,790 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 16:59:06,790 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 16:59:06,790 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 16:59:06,791 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 16:59:06,791 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 16:59:06,791 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 16:59:06,791 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 16:59:06,792 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 16:59:06,792 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 16:59:06,792 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 16:59:06,792 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 16:59:06,792 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 16:59:06,792 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 16:59:06,792 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 16:59:06,793 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 16:59:06,793 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 16:59:06,794 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2020-09-24 16:59:06,795 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 16:59:06,795 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 16:59:06,796 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 16:59:06,796 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 16:59:06,796 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 16:59:06,796 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 16:59:06,797 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 16:59:06,797 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 16:59:06,797 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-24 16:59:06,797 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 16:59:06,798 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 16:59:06,799 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 16:59:06,799 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 16:59:06,799 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 16:59:06,799 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-24 16:59:06,799 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 16:59:06,800 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 16:59:06,800 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 16:59:06,800 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2020-09-24 16:59:06,800 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2020-09-24 16:59:06,800 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 16:59:06,801 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 16:59:06,801 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 16:59:06,801 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 16:59:06,801 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-24 16:59:06,801 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-24 16:59:06,802 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 16:59:06,802 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 16:59:06,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 16:59:06,802 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 16:59:08,206 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 16:59:08,206 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 16:59:08,214 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:59:08 BoogieIcfgContainer [2020-09-24 16:59:08,215 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 16:59:08,216 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 16:59:08,216 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 16:59:08,220 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 16:59:08,221 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 04:59:05" (1/3) ... [2020-09-24 16:59:08,222 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64ebabc8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:59:08, skipping insertion in model container [2020-09-24 16:59:08,222 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:59:06" (2/3) ... [2020-09-24 16:59:08,222 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64ebabc8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:59:08, skipping insertion in model container [2020-09-24 16:59:08,222 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:59:08" (3/3) ... [2020-09-24 16:59:08,225 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product55.cil.c [2020-09-24 16:59:08,237 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 16:59:08,249 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 16:59:08,273 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 16:59:08,316 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 16:59:08,317 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 16:59:08,317 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 16:59:08,318 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 16:59:08,318 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 16:59:08,319 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 16:59:08,320 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 16:59:08,320 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 16:59:08,367 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states. [2020-09-24 16:59:08,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-09-24 16:59:08,408 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:59:08,409 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 16:59:08,413 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:59:08,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:59:08,423 INFO L82 PathProgramCache]: Analyzing trace with hash 1837457757, now seen corresponding path program 1 times [2020-09-24 16:59:08,436 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:59:08,436 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1050930015] [2020-09-24 16:59:08,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:59:08,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:08,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:09,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:10,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:10,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:13,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:23,667 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:23,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 197 [2020-09-24 16:59:23,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 16:59:23,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14854 [2020-09-24 16:59:23,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:23,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 16:59:23,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 161 [2020-09-24 16:59:23,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-24 16:59:23,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 16:59:24,223 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 16:59:24,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:59:24,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:24,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:24,376 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:24,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 16:59:24,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:24,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 135 [2020-09-24 16:59:24,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:24,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:24,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:24,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:24,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:59:24,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 16:59:24,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:24,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:24,457 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:24,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:59:24,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:24,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:59:24,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:24,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:24,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:24,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:24,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:59:24,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 16:59:24,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:24,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:24,467 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:24,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:59:24,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:24,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:59:24,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:24,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:24,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:24,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:24,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:59:24,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 16:59:24,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:24,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:24,476 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:24,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:59:24,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:24,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 16:59:24,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:24,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:24,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:24,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:24,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:59:24,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 16:59:24,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:24,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:24,484 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:24,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:59:24,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:24,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:59:24,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:24,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:24,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:24,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:24,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:59:24,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 16:59:24,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:24,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:24,513 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:24,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 16:59:24,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:24,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:59:24,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:24,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:24,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:24,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:24,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:59:24,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 16:59:24,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:24,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:24,525 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:24,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 16:59:24,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:24,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:59:24,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:24,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:24,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:24,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:24,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:59:24,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:59:24,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:24,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:24,536 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:24,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:59:24,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:24,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:59:24,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:24,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:24,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:24,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:24,539 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:59:24,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-24 16:59:24,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:24,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:24,548 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:24,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:59:24,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:24,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 16:59:24,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:24,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:59:24,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:24,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 16:59:24,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:59:24,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-24 16:59:24,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:24,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:24,576 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:24,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:59:24,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:24,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-24 16:59:24,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:24,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 16:59:24,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:24,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 16:59:24,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:59:24,739 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-24 16:59:24,741 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1050930015] [2020-09-24 16:59:24,744 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:59:24,744 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 16:59:24,746 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217775787] [2020-09-24 16:59:24,760 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 16:59:24,760 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:59:24,788 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 16:59:24,790 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 16:59:24,794 INFO L87 Difference]: Start difference. First operand 356 states. Second operand 9 states. [2020-09-24 16:59:25,785 WARN L193 SmtUtils]: Spent 389.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 16:59:26,637 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 16:59:26,938 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-24 16:59:28,272 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 16:59:28,632 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 16:59:29,009 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 16:59:29,570 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 16:59:29,887 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 16:59:30,212 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 16:59:31,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:59:31,046 INFO L93 Difference]: Finished difference Result 689 states and 838 transitions. [2020-09-24 16:59:31,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-24 16:59:31,049 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 160 [2020-09-24 16:59:31,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:59:31,073 INFO L225 Difference]: With dead ends: 689 [2020-09-24 16:59:31,073 INFO L226 Difference]: Without dead ends: 457 [2020-09-24 16:59:31,080 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-09-24 16:59:31,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 457 states. [2020-09-24 16:59:31,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 457 to 408. [2020-09-24 16:59:31,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 408 states. [2020-09-24 16:59:31,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 408 states to 408 states and 460 transitions. [2020-09-24 16:59:31,226 INFO L78 Accepts]: Start accepts. Automaton has 408 states and 460 transitions. Word has length 160 [2020-09-24 16:59:31,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:59:31,228 INFO L479 AbstractCegarLoop]: Abstraction has 408 states and 460 transitions. [2020-09-24 16:59:31,228 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 16:59:31,228 INFO L276 IsEmpty]: Start isEmpty. Operand 408 states and 460 transitions. [2020-09-24 16:59:31,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2020-09-24 16:59:31,234 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:59:31,234 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 16:59:31,235 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 16:59:31,235 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:59:31,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:59:31,235 INFO L82 PathProgramCache]: Analyzing trace with hash -1620118824, now seen corresponding path program 1 times [2020-09-24 16:59:31,236 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:59:31,236 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [487033746] [2020-09-24 16:59:31,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:59:31,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:31,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:31,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:31,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:32,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:33,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:43,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking...