/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=LOWLEXORDER --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_spec4_product63.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 21:26:02,956 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 21:26:02,960 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 21:26:03,005 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 21:26:03,006 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 21:26:03,014 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 21:26:03,016 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 21:26:03,020 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 21:26:03,023 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 21:26:03,026 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 21:26:03,027 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 21:26:03,028 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 21:26:03,028 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 21:26:03,031 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 21:26:03,034 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 21:26:03,035 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 21:26:03,037 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 21:26:03,038 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 21:26:03,040 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 21:26:03,048 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 21:26:03,051 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 21:26:03,052 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 21:26:03,053 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 21:26:03,054 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 21:26:03,071 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 21:26:03,071 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 21:26:03,071 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 21:26:03,073 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 21:26:03,073 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 21:26:03,076 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 21:26:03,076 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 21:26:03,077 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 21:26:03,081 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 21:26:03,082 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 21:26:03,083 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 21:26:03,084 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 21:26:03,085 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 21:26:03,085 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 21:26:03,085 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 21:26:03,086 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 21:26:03,087 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 21:26:03,088 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 21:26:03,132 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 21:26:03,132 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 21:26:03,134 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 21:26:03,135 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 21:26:03,135 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 21:26:03,135 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 21:26:03,136 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 21:26:03,136 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 21:26:03,136 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 21:26:03,136 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 21:26:03,137 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 21:26:03,137 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 21:26:03,138 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 21:26:03,138 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 21:26:03,138 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 21:26:03,139 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 21:26:03,139 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 21:26:03,139 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 21:26:03,139 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 21:26:03,139 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 21:26:03,140 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 21:26:03,140 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 21:26:03,140 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 21:26:03,140 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 21:26:03,141 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 21:26:03,141 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 21:26:03,141 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 21:26:03,141 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 21:26:03,141 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 21:26:03,142 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=LOWLEXORDER;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=LOWLEXORDER;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=LOWLEXORDER;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=LOWLEXORDER;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=LOWLEXORDER;log-additional-information=true; [2020-09-24 21:26:03,596 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 21:26:03,623 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 21:26:03,629 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 21:26:03,632 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 21:26:03,632 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 21:26:03,633 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product63.cil.c [2020-09-24 21:26:03,726 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a766cd329/1d19b7a2c03047ac9475c08c78e6efb8/FLAGdc614aa3c [2020-09-24 21:26:04,351 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 21:26:04,352 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product63.cil.c [2020-09-24 21:26:04,368 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a766cd329/1d19b7a2c03047ac9475c08c78e6efb8/FLAGdc614aa3c [2020-09-24 21:26:04,613 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a766cd329/1d19b7a2c03047ac9475c08c78e6efb8 [2020-09-24 21:26:04,629 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 21:26:04,637 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 21:26:04,642 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 21:26:04,642 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 21:26:04,646 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 21:26:04,648 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 09:26:04" (1/1) ... [2020-09-24 21:26:04,653 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56344ce7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:26:04, skipping insertion in model container [2020-09-24 21:26:04,653 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 09:26:04" (1/1) ... [2020-09-24 21:26:04,663 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 21:26:04,739 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 21:26:05,222 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 21:26:05,251 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 21:26:05,486 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 21:26:05,526 INFO L208 MainTranslator]: Completed translation [2020-09-24 21:26:05,527 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:26:05 WrapperNode [2020-09-24 21:26:05,527 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 21:26:05,528 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 21:26:05,528 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 21:26:05,528 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 21:26:05,543 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:26:05" (1/1) ... [2020-09-24 21:26:05,543 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:26:05" (1/1) ... [2020-09-24 21:26:05,565 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:26:05" (1/1) ... [2020-09-24 21:26:05,565 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:26:05" (1/1) ... [2020-09-24 21:26:05,600 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:26:05" (1/1) ... [2020-09-24 21:26:05,612 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:26:05" (1/1) ... [2020-09-24 21:26:05,618 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:26:05" (1/1) ... [2020-09-24 21:26:05,626 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 21:26:05,627 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 21:26:05,627 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 21:26:05,627 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 21:26:05,629 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:26:05" (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 21:26:05,720 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 21:26:05,720 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 21:26:05,721 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 21:26:05,721 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 21:26:05,721 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 21:26:05,721 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 21:26:05,721 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 21:26:05,722 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 21:26:05,722 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 21:26:05,722 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 21:26:05,722 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 21:26:05,722 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 21:26:05,723 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 21:26:05,723 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 21:26:05,723 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 21:26:05,723 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 21:26:05,723 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 21:26:05,724 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 21:26:05,724 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-09-24 21:26:05,724 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 21:26:05,725 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 21:26:05,725 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 21:26:05,725 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 21:26:05,725 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 21:26:05,725 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 21:26:05,725 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 21:26:05,726 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-24 21:26:05,726 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 21:26:05,726 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 21:26:05,726 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 21:26:05,726 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 21:26:05,726 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-09-24 21:26:05,727 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 21:26:05,727 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-09-24 21:26:05,727 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 21:26:05,727 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 21:26:05,727 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 21:26:05,727 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 21:26:05,728 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 21:26:05,728 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 21:26:05,728 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-24 21:26:05,728 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-24 21:26:05,728 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 21:26:05,728 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 21:26:05,729 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 21:26:05,729 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 21:26:05,729 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 21:26:05,729 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 21:26:05,729 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 21:26:05,729 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 21:26:05,730 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 21:26:05,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 21:26:05,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 21:26:05,730 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 21:26:05,730 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 21:26:05,730 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 21:26:05,731 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 21:26:05,731 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 21:26:05,731 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 21:26:05,731 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 21:26:05,731 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 21:26:05,731 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 21:26:05,731 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 21:26:05,732 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 21:26:05,732 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 21:26:05,732 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 21:26:05,732 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 21:26:05,732 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 21:26:05,732 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 21:26:05,733 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 21:26:05,733 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 21:26:05,733 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 21:26:05,733 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 21:26:05,733 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 21:26:05,733 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 21:26:05,733 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 21:26:05,734 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 21:26:05,734 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 21:26:05,734 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 21:26:05,734 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 21:26:05,734 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-09-24 21:26:05,734 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 21:26:05,735 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 21:26:05,735 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 21:26:05,735 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 21:26:05,735 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-24 21:26:05,735 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 21:26:05,735 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 21:26:05,736 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-24 21:26:05,736 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 21:26:05,736 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 21:26:05,736 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 21:26:05,736 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 21:26:05,737 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-24 21:26:05,737 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-09-24 21:26:05,737 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 21:26:05,737 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-09-24 21:26:05,737 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 21:26:05,737 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 21:26:05,737 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 21:26:07,084 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 21:26:07,084 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 21:26:07,092 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 09:26:07 BoogieIcfgContainer [2020-09-24 21:26:07,092 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 21:26:07,093 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 21:26:07,093 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 21:26:07,098 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 21:26:07,098 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 09:26:04" (1/3) ... [2020-09-24 21:26:07,099 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11a4d9af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 09:26:07, skipping insertion in model container [2020-09-24 21:26:07,099 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:26:05" (2/3) ... [2020-09-24 21:26:07,100 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11a4d9af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 09:26:07, skipping insertion in model container [2020-09-24 21:26:07,100 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 09:26:07" (3/3) ... [2020-09-24 21:26:07,102 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product63.cil.c [2020-09-24 21:26:07,115 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 21:26:07,126 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 21:26:07,150 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 21:26:07,185 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 21:26:07,186 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 21:26:07,186 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 21:26:07,186 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 21:26:07,186 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 21:26:07,186 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 21:26:07,186 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 21:26:07,187 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 21:26:07,215 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states. [2020-09-24 21:26:07,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-24 21:26:07,235 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:26:07,236 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:26:07,237 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:26:07,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:26:07,245 INFO L82 PathProgramCache]: Analyzing trace with hash 678471582, now seen corresponding path program 1 times [2020-09-24 21:26:07,255 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:26:07,256 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2121962318] [2020-09-24 21:26:07,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:26:07,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:26:07,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:26:08,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:26:09,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:26:10,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:26:12,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:26:12,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-24 21:26:12,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 21:26:12,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5027 [2020-09-24 21:26:12,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:26:12,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-24 21:26:12,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-24 21:26:12,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-24 21:26:12,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-24 21:26:13,115 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 21:26:13,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:26:13,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:26:13,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:26:13,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:26:13,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 21:26:13,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:26:13,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 303 [2020-09-24 21:26:13,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:26:13,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:26:13,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:26:13,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 21:26:13,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:26:13,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 21:26:13,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:26:13,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:26:13,612 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:26:13,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:26:13,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:26:13,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 21:26:13,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:26:13,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:26:13,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:26:13,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:26:13,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:26:13,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 21:26:13,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:26:13,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:26:13,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:26:13,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:26:13,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:26:13,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 21:26:13,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:26:13,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:26:13,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:26:13,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:26:13,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:26:13,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 21:26:13,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:26:13,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:26:13,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:26:13,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:26:13,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:26:13,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 21:26:13,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:26:13,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:26:13,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:26:13,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:26:13,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:26:13,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 21:26:13,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:26:13,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:26:13,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:26:13,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:26:13,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:26:13,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:26:13,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:26:13,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:26:13,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:26:13,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:26:13,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:26:13,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 21:26:13,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:26:13,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:26:13,686 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:26:13,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:26:13,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:26:13,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-24 21:26:13,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:26:13,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:26:13,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:26:13,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:26:13,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:26:13,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 21:26:13,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:26:13,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:26:13,727 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:26:13,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:26:13,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:26:13,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:26:13,728 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:26:13,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:26:13,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:26:13,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:26:13,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:26:13,761 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 21:26:13,762 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2121962318] [2020-09-24 21:26:13,764 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:26:13,764 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 21:26:13,765 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245766160] [2020-09-24 21:26:13,773 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 21:26:13,774 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:26:13,791 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 21:26:13,792 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-24 21:26:13,795 INFO L87 Difference]: Start difference. First operand 352 states. Second operand 8 states. [2020-09-24 21:26:14,850 WARN L193 SmtUtils]: Spent 465.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 21:26:15,956 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 21:26:16,328 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 21:26:16,725 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 21:26:17,085 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 21:26:17,425 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 21:26:17,717 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 21:26:18,020 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 21:26:20,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:26:20,944 INFO L93 Difference]: Finished difference Result 779 states and 957 transitions. [2020-09-24 21:26:20,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-24 21:26:20,946 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 142 [2020-09-24 21:26:20,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:26:20,974 INFO L225 Difference]: With dead ends: 779 [2020-09-24 21:26:20,975 INFO L226 Difference]: Without dead ends: 538 [2020-09-24 21:26:20,982 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-09-24 21:26:21,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2020-09-24 21:26:21,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 488. [2020-09-24 21:26:21,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 488 states. [2020-09-24 21:26:21,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 488 states to 488 states and 557 transitions. [2020-09-24 21:26:21,153 INFO L78 Accepts]: Start accepts. Automaton has 488 states and 557 transitions. Word has length 142 [2020-09-24 21:26:21,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:26:21,154 INFO L479 AbstractCegarLoop]: Abstraction has 488 states and 557 transitions. [2020-09-24 21:26:21,154 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 21:26:21,154 INFO L276 IsEmpty]: Start isEmpty. Operand 488 states and 557 transitions. [2020-09-24 21:26:21,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-24 21:26:21,161 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:26:21,161 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] [2020-09-24 21:26:21,162 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 21:26:21,162 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:26:21,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:26:21,163 INFO L82 PathProgramCache]: Analyzing trace with hash 188320700, now seen corresponding path program 1 times [2020-09-24 21:26:21,163 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:26:21,163 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [757563749] [2020-09-24 21:26:21,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:26:21,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:26:21,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:26:21,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:26:22,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:26:26,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:26:26,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-24 21:26:26,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 21:26:26,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5032 [2020-09-24 21:26:26,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:26:26,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 21:26:26,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-24 21:26:26,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-09-24 21:26:26,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:26:26,578 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 21:26:26,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:26:26,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:26:26,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:26:26,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:26:26,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 21:26:26,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:26:26,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 251 [2020-09-24 21:26:26,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:26:26,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:26:26,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:26:26,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-24 21:26:26,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:26:26,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 21:26:26,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:26:26,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:26:26,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:26:26,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:26:26,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:26:26,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:26:26,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:26:26,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:26:26,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:26:26,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:26:26,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:26:26,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 21:26:26,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:26:26,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:26:26,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:26:26,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:26:26,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:26:26,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:26:26,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:26:26,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:26:26,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:26:26,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:26:26,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:26:26,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 21:26:26,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:26:26,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:26:26,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:26:26,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:26:26,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:26:26,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 21:26:26,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:26:26,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:26:26,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:26:26,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:26:26,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:26:26,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 21:26:26,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:26:26,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:26:26,951 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:26:26,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:26:26,952 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:26:26,952 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:26:26,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:26:26,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:26:26,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:26:26,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:26:26,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:26:26,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-09-24 21:26:26,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:26:26,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:26:26,969 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:26:26,969 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 21:26:26,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:26:26,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:26:26,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:26:26,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:26:26,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-24 21:26:26,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:26:26,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:26:26,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-09-24 21:26:26,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:26:26,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:26:26,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:26:26,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:26:26,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:26:26,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:26:26,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:26:26,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:26:26,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:26:26,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:26:26,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:26:26,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-24 21:26:26,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:26:26,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:26:26,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:26:26,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:26:26,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:26:26,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:26:26,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:26:26,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:26:26,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:26:26,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:26:26,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:26:27,016 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 21:26:27,016 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [757563749] [2020-09-24 21:26:27,017 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:26:27,017 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 21:26:27,017 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166808470] [2020-09-24 21:26:27,020 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 21:26:27,020 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:26:27,020 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 21:26:27,021 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-24 21:26:27,021 INFO L87 Difference]: Start difference. First operand 488 states and 557 transitions. Second operand 5 states. [2020-09-24 21:26:27,520 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 21:26:30,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:26:30,101 INFO L93 Difference]: Finished difference Result 1068 states and 1332 transitions. [2020-09-24 21:26:30,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 21:26:30,102 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 148 [2020-09-24 21:26:30,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:26:30,119 INFO L225 Difference]: With dead ends: 1068 [2020-09-24 21:26:30,119 INFO L226 Difference]: Without dead ends: 690 [2020-09-24 21:26:30,128 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-24 21:26:30,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 690 states. [2020-09-24 21:26:30,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 690 to 633. [2020-09-24 21:26:30,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 633 states. [2020-09-24 21:26:30,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 633 states to 633 states and 739 transitions. [2020-09-24 21:26:30,233 INFO L78 Accepts]: Start accepts. Automaton has 633 states and 739 transitions. Word has length 148 [2020-09-24 21:26:30,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:26:30,234 INFO L479 AbstractCegarLoop]: Abstraction has 633 states and 739 transitions. [2020-09-24 21:26:30,234 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 21:26:30,234 INFO L276 IsEmpty]: Start isEmpty. Operand 633 states and 739 transitions. [2020-09-24 21:26:30,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-09-24 21:26:30,237 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:26:30,237 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] [2020-09-24 21:26:30,238 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 21:26:30,238 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:26:30,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:26:30,238 INFO L82 PathProgramCache]: Analyzing trace with hash -1091239638, now seen corresponding path program 1 times [2020-09-24 21:26:30,239 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:26:30,239 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [606292905] [2020-09-24 21:26:30,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:26:30,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:26:30,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:26:31,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:26:32,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:26:35,316 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:26:35,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 188 [2020-09-24 21:26:35,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 21:26:35,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5023 [2020-09-24 21:26:35,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:26:35,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-24 21:26:35,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-24 21:26:35,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-09-24 21:26:35,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:26:35,746 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 21:26:35,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:26:35,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:26:35,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:26:36,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:26:36,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 21:26:36,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:26:36,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 266 [2020-09-24 21:26:36,055 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:26:36,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:26:36,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:26:36,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 21:26:36,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:26:36,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 21:26:36,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:26:36,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:26:36,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:26:36,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:26:36,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:26:36,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:26:36,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:26:36,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:26:36,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:26:36,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:26:36,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:26:36,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 21:26:36,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:26:36,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:26:36,122 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:26:36,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:26:36,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:26:36,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:26:36,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:26:36,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:26:36,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:26:36,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:26:36,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:26:36,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 21:26:36,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:26:36,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:26:36,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:26:36,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:26:36,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:26:36,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 21:26:36,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:26:36,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:26:36,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:26:36,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:26:36,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:26:36,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 21:26:36,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:26:36,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:26:36,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:26:36,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:26:36,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:26:36,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:26:36,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:26:36,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:26:36,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:26:36,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:26:36,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:26:36,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-24 21:26:36,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:26:36,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:26:36,179 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:26:36,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 21:26:36,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:26:36,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 21:26:36,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:26:36,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:26:36,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 21:26:36,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 21:26:36,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:26:36,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-24 21:26:36,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:26:36,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:26:36,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:26:36,265 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:26:36,265 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:26:36,265 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-24 21:26:36,266 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:26:36,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:26:36,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:26:36,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:26:36,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 21:26:36,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-09-24 21:26:36,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:26:36,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:26:36,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:26:36,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:26:36,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:26:36,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:26:36,315 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:26:36,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:26:36,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:26:36,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:26:36,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:26:36,380 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 21:26:36,381 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [606292905] [2020-09-24 21:26:36,381 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:26:36,381 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-24 21:26:36,382 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46587755] [2020-09-24 21:26:36,383 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-24 21:26:36,384 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:26:36,384 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-24 21:26:36,385 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2020-09-24 21:26:36,385 INFO L87 Difference]: Start difference. First operand 633 states and 739 transitions. Second operand 12 states. [2020-09-24 21:26:37,084 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 21:26:37,810 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 21:26:38,067 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 21:26:38,313 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 21:26:38,665 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 21:26:39,028 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 21:26:39,400 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 21:26:39,923 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 21:26:40,269 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:26:40,615 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 21:26:40,941 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 21:26:41,244 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 21:26:41,879 WARN L193 SmtUtils]: Spent 532.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 190 [2020-09-24 21:26:43,386 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 21:26:43,739 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 21:26:44,359 WARN L193 SmtUtils]: Spent 543.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 192 [2020-09-24 21:26:45,113 WARN L193 SmtUtils]: Spent 640.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 194 [2020-09-24 21:26:45,791 WARN L193 SmtUtils]: Spent 571.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 193 [2020-09-24 21:26:46,140 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 21:26:46,784 WARN L193 SmtUtils]: Spent 576.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 196 [2020-09-24 21:26:47,428 WARN L193 SmtUtils]: Spent 570.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 193 [2020-09-24 21:26:49,469 WARN L193 SmtUtils]: Spent 536.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 187 [2020-09-24 21:26:50,375 WARN L193 SmtUtils]: Spent 547.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 189 [2020-09-24 21:26:51,014 WARN L193 SmtUtils]: Spent 572.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 191 [2020-09-24 21:26:51,888 WARN L193 SmtUtils]: Spent 550.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 191