/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.3 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product48.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 12:04:23,973 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 12:04:23,978 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 12:04:24,028 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 12:04:24,029 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 12:04:24,041 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 12:04:24,043 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 12:04:24,048 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 12:04:24,051 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 12:04:24,055 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 12:04:24,056 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 12:04:24,058 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 12:04:24,058 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 12:04:24,062 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 12:04:24,066 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 12:04:24,069 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 12:04:24,071 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 12:04:24,072 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 12:04:24,074 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 12:04:24,084 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 12:04:24,087 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 12:04:24,088 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 12:04:24,090 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 12:04:24,091 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 12:04:24,094 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 12:04:24,094 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 12:04:24,094 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 12:04:24,098 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 12:04:24,099 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 12:04:24,100 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 12:04:24,100 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 12:04:24,101 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 12:04:24,102 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 12:04:24,103 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 12:04:24,104 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 12:04:24,105 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 12:04:24,106 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 12:04:24,106 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 12:04:24,106 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 12:04:24,107 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 12:04:24,109 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 12:04:24,110 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 [2020-09-25 12:04:24,157 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 12:04:24,157 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 12:04:24,160 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 12:04:24,160 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 12:04:24,161 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 12:04:24,161 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 12:04:24,162 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 12:04:24,162 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 12:04:24,162 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 12:04:24,162 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 12:04:24,163 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 12:04:24,164 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 12:04:24,164 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 12:04:24,165 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 12:04:24,165 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 12:04:24,165 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 12:04:24,165 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 12:04:24,165 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 12:04:24,166 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 12:04:24,166 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 12:04:24,166 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 12:04:24,166 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 12:04:24,167 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 12:04:24,167 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 12:04:24,167 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 12:04:24,167 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 12:04:24,167 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 12:04:24,168 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 12:04:24,168 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 12:04:24,168 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=SMALLESTAMONGWIDE;tolerance=0.3;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=SMALLESTAMONGWIDE;tolerance=0.3;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=SMALLESTAMONGWIDE;tolerance=0.3;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=SMALLESTAMONGWIDE;tolerance=0.3;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=SMALLESTAMONGWIDE;tolerance=0.3;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=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; [2020-09-25 12:04:24,630 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 12:04:24,656 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 12:04:24,662 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 12:04:24,664 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 12:04:24,664 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 12:04:24,665 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product48.cil.c [2020-09-25 12:04:24,757 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/20a68d80a/09be65b480bd4134a4a75f0fbdd44a62/FLAG40ebbb6e7 [2020-09-25 12:04:25,396 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 12:04:25,397 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product48.cil.c [2020-09-25 12:04:25,414 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/20a68d80a/09be65b480bd4134a4a75f0fbdd44a62/FLAG40ebbb6e7 [2020-09-25 12:04:25,672 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/20a68d80a/09be65b480bd4134a4a75f0fbdd44a62 [2020-09-25 12:04:25,684 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 12:04:25,691 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 12:04:25,693 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 12:04:25,693 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 12:04:25,697 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 12:04:25,699 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:04:25" (1/1) ... [2020-09-25 12:04:25,703 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21f7a528 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:04:25, skipping insertion in model container [2020-09-25 12:04:25,703 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:04:25" (1/1) ... [2020-09-25 12:04:25,713 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 12:04:25,775 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 12:04:26,278 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 12:04:26,304 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 12:04:26,462 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 12:04:26,513 INFO L208 MainTranslator]: Completed translation [2020-09-25 12:04:26,514 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:04:26 WrapperNode [2020-09-25 12:04:26,514 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 12:04:26,515 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 12:04:26,515 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 12:04:26,515 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 12:04:26,531 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:04:26" (1/1) ... [2020-09-25 12:04:26,531 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:04:26" (1/1) ... [2020-09-25 12:04:26,553 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:04:26" (1/1) ... [2020-09-25 12:04:26,553 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:04:26" (1/1) ... [2020-09-25 12:04:26,589 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:04:26" (1/1) ... [2020-09-25 12:04:26,602 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:04:26" (1/1) ... [2020-09-25 12:04:26,610 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:04:26" (1/1) ... [2020-09-25 12:04:26,618 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 12:04:26,619 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 12:04:26,619 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 12:04:26,619 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 12:04:26,621 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:04:26" (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 [2020-09-25 12:04:26,718 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 12:04:26,718 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 12:04:26,718 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 12:04:26,718 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 12:04:26,719 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 12:04:26,719 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 12:04:26,719 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 12:04:26,719 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 12:04:26,719 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-25 12:04:26,720 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 12:04:26,720 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 12:04:26,720 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 12:04:26,720 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 12:04:26,720 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 12:04:26,721 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 12:04:26,721 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 12:04:26,722 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 12:04:26,722 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 12:04:26,722 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 12:04:26,722 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 12:04:26,723 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-09-25 12:04:26,723 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 12:04:26,723 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 12:04:26,723 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 12:04:26,724 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 12:04:26,724 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 12:04:26,724 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 12:04:26,725 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 12:04:26,725 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 12:04:26,725 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 12:04:26,725 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 12:04:26,725 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 12:04:26,725 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 12:04:26,726 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 12:04:26,726 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 12:04:26,726 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 12:04:26,726 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 12:04:26,726 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 12:04:26,726 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 12:04:26,726 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 12:04:26,727 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 12:04:26,727 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 12:04:26,727 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 12:04:26,727 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 12:04:26,727 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 12:04:26,728 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 12:04:26,728 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 12:04:26,728 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 12:04:26,728 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 12:04:26,729 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 12:04:26,729 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 12:04:26,729 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 12:04:26,729 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-25 12:04:26,730 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 12:04:26,730 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 12:04:26,730 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 12:04:26,730 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 12:04:26,730 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 12:04:26,730 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 12:04:26,730 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 12:04:26,731 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 12:04:26,731 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 12:04:26,731 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 12:04:26,731 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 12:04:26,732 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 12:04:26,732 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 12:04:26,732 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 12:04:26,732 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 12:04:26,732 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 12:04:26,733 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 12:04:26,733 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-09-25 12:04:26,735 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 12:04:26,735 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 12:04:26,735 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 12:04:26,735 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 12:04:26,735 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 12:04:26,735 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 12:04:26,736 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 12:04:26,736 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 12:04:26,736 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 12:04:26,736 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 12:04:26,736 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 12:04:26,737 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 12:04:26,737 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 12:04:26,738 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 12:04:26,738 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 12:04:26,738 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 12:04:26,738 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 12:04:26,738 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 12:04:26,738 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 12:04:26,738 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 12:04:26,739 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 12:04:26,739 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 12:04:26,739 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 12:04:26,739 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 12:04:26,739 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 12:04:27,985 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 12:04:27,986 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 12:04:27,993 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:04:27 BoogieIcfgContainer [2020-09-25 12:04:27,993 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 12:04:27,996 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 12:04:27,996 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 12:04:28,000 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 12:04:28,001 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 12:04:25" (1/3) ... [2020-09-25 12:04:28,002 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@476bedb2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:04:28, skipping insertion in model container [2020-09-25 12:04:28,002 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:04:26" (2/3) ... [2020-09-25 12:04:28,002 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@476bedb2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:04:28, skipping insertion in model container [2020-09-25 12:04:28,003 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:04:27" (3/3) ... [2020-09-25 12:04:28,005 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product48.cil.c [2020-09-25 12:04:28,017 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 12:04:28,028 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 12:04:28,051 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 12:04:28,085 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 12:04:28,086 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 12:04:28,086 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 12:04:28,086 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 12:04:28,086 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 12:04:28,086 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 12:04:28,087 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 12:04:28,087 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 12:04:28,117 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states. [2020-09-25 12:04:28,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-25 12:04:28,137 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:04:28,139 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:04:28,139 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:04:28,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:04:28,148 INFO L82 PathProgramCache]: Analyzing trace with hash -1855175087, now seen corresponding path program 1 times [2020-09-25 12:04:28,159 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:04:28,160 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1185139251] [2020-09-25 12:04:28,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:04:28,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:04:28,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:04:28,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:04:30,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:04:33,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:04:33,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-25 12:04:33,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 12:04:33,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5033 [2020-09-25 12:04:33,663 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:04:33,664 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:04:33,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 12:04:33,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-25 12:04:33,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-09-25 12:04:33,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 14 [2020-09-25 12:04:34,121 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 12:04:34,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:04:34,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:04:34,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:04:34,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:04:34,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 12:04:34,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:04:34,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 321 [2020-09-25 12:04:34,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:04:34,513 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:04:34,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:04:34,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:04:34,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-25 12:04:34,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:04:34,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 12:04:34,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:04:34,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:04:34,608 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:04:34,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:04:34,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:04:34,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 12:04:34,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:04:34,609 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:04:34,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:04:34,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:04:34,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:04:34,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:04:34,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 12:04:34,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:04:34,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:04:34,623 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:04:34,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:04:34,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:04:34,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 12:04:34,624 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:04:34,624 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:04:34,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:04:34,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:04:34,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:04:34,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:04:34,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 12:04:34,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:04:34,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:04:34,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:04:34,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:04:34,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:04:34,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 12:04:34,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:04:34,643 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:04:34,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:04:34,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:04:34,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 12:04:34,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:04:34,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 12:04:34,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:04:34,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:04:34,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:04:34,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:04:34,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:04:34,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 12:04:34,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:04:34,654 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:04:34,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:04:34,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:04:34,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:04:34,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:04:34,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 12:04:34,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:04:34,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:04:34,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:04:34,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:04:34,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:04:34,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-09-25 12:04:34,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:04:34,702 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:04:34,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:04:34,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:04:34,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 12:04:34,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:04:34,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 12:04:34,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:04:34,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:04:34,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:04:34,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:04:34,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:04:34,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 12:04:34,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:04:34,720 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:04:34,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 12:04:34,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:04:34,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 12:04:34,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:04:34,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-25 12:04:34,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:04:34,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:04:34,767 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:04:34,767 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:04:34,767 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:04:34,767 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:04:34,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:04:34,768 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:04:34,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:04:34,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 12:04:34,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:04:34,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:04:34,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 12:04:34,805 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1185139251] [2020-09-25 12:04:34,807 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:04:34,807 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 12:04:34,808 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467427296] [2020-09-25 12:04:34,815 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 12:04:34,815 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:04:34,833 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 12:04:34,834 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-25 12:04:34,837 INFO L87 Difference]: Start difference. First operand 331 states. Second operand 8 states. [2020-09-25 12:04:35,399 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 12:04:37,275 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 12:04:37,700 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 12:04:38,109 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 12:04:38,557 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 12:04:38,878 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 12:04:39,215 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 12:04:39,509 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 12:04:41,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:04:41,275 INFO L93 Difference]: Finished difference Result 715 states and 882 transitions. [2020-09-25 12:04:41,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 12:04:41,285 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 153 [2020-09-25 12:04:41,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:04:41,309 INFO L225 Difference]: With dead ends: 715 [2020-09-25 12:04:41,309 INFO L226 Difference]: Without dead ends: 495 [2020-09-25 12:04:41,317 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-09-25 12:04:41,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 495 states. [2020-09-25 12:04:41,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 495 to 444. [2020-09-25 12:04:41,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 444 states. [2020-09-25 12:04:41,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 444 states to 444 states and 506 transitions. [2020-09-25 12:04:41,522 INFO L78 Accepts]: Start accepts. Automaton has 444 states and 506 transitions. Word has length 153 [2020-09-25 12:04:41,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:04:41,523 INFO L479 AbstractCegarLoop]: Abstraction has 444 states and 506 transitions. [2020-09-25 12:04:41,523 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 12:04:41,523 INFO L276 IsEmpty]: Start isEmpty. Operand 444 states and 506 transitions. [2020-09-25 12:04:41,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-09-25 12:04:41,531 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:04:41,531 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:04:41,532 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 12:04:41,532 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:04:41,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:04:41,533 INFO L82 PathProgramCache]: Analyzing trace with hash 1535639593, now seen corresponding path program 1 times [2020-09-25 12:04:41,533 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:04:41,533 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1265463125] [2020-09-25 12:04:41,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:04:41,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:04:41,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:04:41,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:04:41,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 207 [2020-09-25 12:04:41,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:04:41,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 369 [2020-09-25 12:04:41,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:04:41,967 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:04:41,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:04:41,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 153 [2020-09-25 12:04:41,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 12:04:41,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:04:42,265 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 12:04:42,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:04:42,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:04:42,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:04:42,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:04:42,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 12:04:42,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:04:42,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 126 [2020-09-25 12:04:42,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:04:42,404 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:04:42,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:04:42,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:04:42,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:04:42,405 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:04:42,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 12:04:42,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:04:42,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:04:42,467 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:04:42,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:04:42,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:04:42,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 12:04:42,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:04:42,469 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:04:42,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:04:42,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:04:42,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:04:42,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:04:42,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 12:04:42,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:04:42,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:04:42,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:04:42,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:04:42,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:04:42,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:04:42,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:04:42,476 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:04:42,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:04:42,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:04:42,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:04:42,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:04:42,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 12:04:42,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:04:42,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:04:42,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:04:42,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:04:42,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:04:42,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 12:04:42,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:04:42,488 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:04:42,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:04:42,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:04:42,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:04:42,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:04:42,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 12:04:42,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:04:42,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:04:42,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:04:42,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:04:42,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:04:42,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:04:42,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:04:42,494 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:04:42,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:04:42,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:04:42,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:04:42,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:04:42,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-25 12:04:42,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:04:42,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:04:42,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:04:42,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 12:04:42,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:04:42,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 12:04:42,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:04:42,512 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:04:42,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:04:42,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:04:42,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:04:42,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 12:04:42,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 12:04:42,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:04:42,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:04:42,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:04:42,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 12:04:42,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:04:42,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 12:04:42,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:04:42,534 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:04:42,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:04:42,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:04:42,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 12:04:42,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:04:42,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-09-25 12:04:42,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:04:42,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:04:42,540 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:04:42,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:04:42,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:04:42,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:04:42,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:04:42,541 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:04:42,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:04:42,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 12:04:42,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:04:42,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:04:42,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-09-25 12:04:42,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:04:42,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:04:42,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:04:42,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:04:42,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:04:42,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:04:42,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:04:42,548 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:04:42,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:04:42,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 12:04:42,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:04:42,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:04:42,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-09-25 12:04:42,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:04:42,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:04:42,554 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:04:42,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:04:42,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:04:42,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:04:42,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:04:42,555 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:04:42,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:04:42,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 12:04:42,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:04:42,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:04:42,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 12:04:42,591 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1265463125] [2020-09-25 12:04:42,591 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:04:42,591 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 12:04:42,591 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646681161] [2020-09-25 12:04:42,595 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 12:04:42,595 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:04:42,595 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 12:04:42,595 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 12:04:42,596 INFO L87 Difference]: Start difference. First operand 444 states and 506 transitions. Second operand 6 states. [2020-09-25 12:04:43,111 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 12:04:46,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:04:46,234 INFO L93 Difference]: Finished difference Result 1240 states and 1523 transitions. [2020-09-25 12:04:46,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 12:04:46,235 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 172 [2020-09-25 12:04:46,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:04:46,245 INFO L225 Difference]: With dead ends: 1240 [2020-09-25 12:04:46,245 INFO L226 Difference]: Without dead ends: 906 [2020-09-25 12:04:46,248 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-25 12:04:46,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 906 states. [2020-09-25 12:04:46,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 906 to 749. [2020-09-25 12:04:46,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 749 states. [2020-09-25 12:04:46,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 749 states to 749 states and 869 transitions. [2020-09-25 12:04:46,380 INFO L78 Accepts]: Start accepts. Automaton has 749 states and 869 transitions. Word has length 172 [2020-09-25 12:04:46,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:04:46,380 INFO L479 AbstractCegarLoop]: Abstraction has 749 states and 869 transitions. [2020-09-25 12:04:46,381 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 12:04:46,381 INFO L276 IsEmpty]: Start isEmpty. Operand 749 states and 869 transitions. [2020-09-25 12:04:46,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-09-25 12:04:46,386 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:04:46,386 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:04:46,386 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 12:04:46,387 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:04:46,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:04:46,387 INFO L82 PathProgramCache]: Analyzing trace with hash -1849841415, now seen corresponding path program 1 times [2020-09-25 12:04:46,387 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:04:46,388 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1871288886] [2020-09-25 12:04:46,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:04:46,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:04:46,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:04:46,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:04:46,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:04:47,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:04:47,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:04:51,473 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:04:51,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 213 [2020-09-25 12:04:51,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 12:04:51,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5031 [2020-09-25 12:04:51,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:04:51,474 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:04:51,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 12:04:51,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-25 12:04:51,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-09-25 12:04:51,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:04:51,748 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 12:04:51,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:04:51,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:04:51,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:04:52,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:04:52,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 12:04:52,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:04:52,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 229 [2020-09-25 12:04:52,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:04:52,017 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:04:52,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:04:52,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:04:52,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 12:04:52,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:04:52,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 12:04:52,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:04:52,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:04:52,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:04:52,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:04:52,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:04:52,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:04:52,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:04:52,069 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:04:52,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:04:52,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:04:52,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:04:52,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 12:04:52,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 12:04:52,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:04:52,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:04:52,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:04:52,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:04:52,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:04:52,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:04:52,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:04:52,078 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:04:52,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:04:52,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:04:52,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:04:52,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:04:52,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 12:04:52,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:04:52,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:04:52,092 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:04:52,092 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:04:52,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:04:52,093 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 12:04:52,093 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:04:52,093 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:04:52,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:04:52,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:04:52,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 12:04:52,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:04:52,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 12:04:52,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:04:52,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:04:52,100 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:04:52,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:04:52,100 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:04:52,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:04:52,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:04:52,101 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:04:52,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:04:52,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:04:52,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:04:52,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:04:52,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-09-25 12:04:52,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:04:52,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:04:52,118 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:04:52,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 12:04:52,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:04:52,119 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 12:04:52,119 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:04:52,120 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:04:52,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:04:52,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 12:04:52,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:04:52,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:04:52,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-09-25 12:04:52,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:04:52,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:04:52,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:04:52,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:04:52,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 12:04:52,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 12:04:52,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 12:04:52,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:04:52,146 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:04:52,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 12:04:52,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-25 12:04:52,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 12:04:52,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:04:52,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:04:52,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:04:52,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:04:52,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:04:52,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 12:04:52,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:04:52,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 12:04:52,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:04:52,158 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:04:52,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 12:04:52,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 12:04:52,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 12:04:52,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:04:52,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:04:52,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:04:52,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:04:52,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:04:52,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:04:52,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:04:52,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:04:52,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:04:52,176 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:04:52,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:04:52,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:04:52,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:04:52,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:04:52,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-09-25 12:04:52,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:04:52,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:04:52,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:04:52,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:04:52,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:04:52,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:04:52,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:04:52,182 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:04:52,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:04:52,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 12:04:52,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:04:52,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:04:52,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-09-25 12:04:52,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:04:52,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:04:52,188 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:04:52,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:04:52,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:04:52,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:04:52,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:04:52,189 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:04:52,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:04:52,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 12:04:52,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:04:52,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:04:52,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-09-25 12:04:52,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:04:52,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:04:52,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:04:52,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:04:52,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:04:52,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:04:52,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:04:52,195 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:04:52,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:04:52,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 12:04:52,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:04:52,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:04:52,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 12:04:52,231 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1871288886] [2020-09-25 12:04:52,231 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:04:52,231 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 12:04:52,231 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929698589] [2020-09-25 12:04:52,232 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 12:04:52,233 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:04:52,233 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 12:04:52,233 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-25 12:04:52,233 INFO L87 Difference]: Start difference. First operand 749 states and 869 transitions. Second operand 7 states. [2020-09-25 12:04:52,781 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 12:04:54,676 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 12:04:56,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:04:56,990 INFO L93 Difference]: Finished difference Result 2078 states and 2669 transitions. [2020-09-25 12:04:56,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-25 12:04:56,991 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 172 [2020-09-25 12:04:56,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:04:57,001 INFO L225 Difference]: With dead ends: 2078 [2020-09-25 12:04:57,001 INFO L226 Difference]: Without dead ends: 1439 [2020-09-25 12:04:57,004 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2020-09-25 12:04:57,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1439 states. [2020-09-25 12:04:57,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1439 to 1209. [2020-09-25 12:04:57,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1209 states. [2020-09-25 12:04:57,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1209 states to 1209 states and 1415 transitions. [2020-09-25 12:04:57,220 INFO L78 Accepts]: Start accepts. Automaton has 1209 states and 1415 transitions. Word has length 172 [2020-09-25 12:04:57,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:04:57,222 INFO L479 AbstractCegarLoop]: Abstraction has 1209 states and 1415 transitions. [2020-09-25 12:04:57,222 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 12:04:57,222 INFO L276 IsEmpty]: Start isEmpty. Operand 1209 states and 1415 transitions. [2020-09-25 12:04:57,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-09-25 12:04:57,226 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:04:57,226 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:04:57,227 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 12:04:57,227 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:04:57,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:04:57,228 INFO L82 PathProgramCache]: Analyzing trace with hash 1544124696, now seen corresponding path program 1 times [2020-09-25 12:04:57,228 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:04:57,228 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [519729448] [2020-09-25 12:04:57,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:04:57,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 12:04:57,326 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 12:04:57,326 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 12:04:57,332 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 12:04:57,369 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 12:04:57 BoogieIcfgContainer [2020-09-25 12:04:57,369 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 12:04:57,371 INFO L168 Benchmark]: Toolchain (without parser) took 31684.71 ms. Allocated memory was 147.3 MB in the beginning and 628.1 MB in the end (delta: 480.8 MB). Free memory was 102.9 MB in the beginning and 505.9 MB in the end (delta: -403.0 MB). Peak memory consumption was 77.8 MB. Max. memory is 7.1 GB. [2020-09-25 12:04:57,373 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 147.3 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-25 12:04:57,374 INFO L168 Benchmark]: CACSL2BoogieTranslator took 821.82 ms. Allocated memory was 147.3 MB in the beginning and 205.5 MB in the end (delta: 58.2 MB). Free memory was 102.2 MB in the beginning and 173.2 MB in the end (delta: -71.0 MB). Peak memory consumption was 23.6 MB. Max. memory is 7.1 GB. [2020-09-25 12:04:57,376 INFO L168 Benchmark]: Boogie Preprocessor took 103.55 ms. Allocated memory is still 205.5 MB. Free memory was 173.2 MB in the beginning and 168.5 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 7.1 GB. [2020-09-25 12:04:57,382 INFO L168 Benchmark]: RCFGBuilder took 1374.87 ms. Allocated memory was 205.5 MB in the beginning and 237.5 MB in the end (delta: 32.0 MB). Free memory was 168.5 MB in the beginning and 173.9 MB in the end (delta: -5.5 MB). Peak memory consumption was 81.3 MB. Max. memory is 7.1 GB. [2020-09-25 12:04:57,383 INFO L168 Benchmark]: TraceAbstraction took 29372.92 ms. Allocated memory was 237.5 MB in the beginning and 628.1 MB in the end (delta: 390.6 MB). Free memory was 172.5 MB in the beginning and 505.9 MB in the end (delta: -333.4 MB). Peak memory consumption was 57.2 MB. Max. memory is 7.1 GB. [2020-09-25 12:04:57,397 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 147.3 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 821.82 ms. Allocated memory was 147.3 MB in the beginning and 205.5 MB in the end (delta: 58.2 MB). Free memory was 102.2 MB in the beginning and 173.2 MB in the end (delta: -71.0 MB). Peak memory consumption was 23.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 103.55 ms. Allocated memory is still 205.5 MB. Free memory was 173.2 MB in the beginning and 168.5 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1374.87 ms. Allocated memory was 205.5 MB in the beginning and 237.5 MB in the end (delta: 32.0 MB). Free memory was 168.5 MB in the beginning and 173.9 MB in the end (delta: -5.5 MB). Peak memory consumption was 81.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 29372.92 ms. Allocated memory was 237.5 MB in the beginning and 628.1 MB in the end (delta: 390.6 MB). Free memory was 172.5 MB in the beginning and 505.9 MB in the end (delta: -333.4 MB). Peak memory consumption was 57.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 44]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L129] int waterLevel = 1; [L130] int methaneLevelCritical = 0; [L229] int pumpRunning = 0; [L230] int systemActive = 1; [L447] int cleanupTimeShifts = 4; [L782] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L521] int retValue_acc ; [L522] int tmp ; [L526] FCALL select_helpers() [L527] FCALL select_features() [L528] CALL, EXPR valid_product() [L78] int retValue_acc ; [L81] retValue_acc = 1 [L82] return (retValue_acc); [L528] RET, EXPR valid_product() [L528] tmp = valid_product() [L530] COND TRUE \read(tmp) [L532] FCALL setup() [L533] CALL runTest() [L515] CALL test() [L545] int splverifierCounter ; [L546] int tmp ; [L547] int tmp___0 ; [L548] int tmp___1 ; [L549] int tmp___2 ; [L552] splverifierCounter = 0 [L554] COND TRUE 1 [L556] COND TRUE splverifierCounter < 4 [L562] tmp = __VERIFIER_nondet_int() [L564] COND TRUE \read(tmp) [L566] CALL waterRise() [L147] COND TRUE waterLevel < 2 [L148] waterLevel = waterLevel + 1 [L566] RET waterRise() [L572] tmp___0 = __VERIFIER_nondet_int() [L574] COND FALSE !(\read(tmp___0)) [L582] tmp___2 = __VERIFIER_nondet_int() [L584] COND FALSE !(\read(tmp___2)) [L590] tmp___1 = __VERIFIER_nondet_int() [L592] COND TRUE \read(tmp___1) [L594] CALL stopSystem() [L427] COND FALSE !(\read(pumpRunning)) [L434] systemActive = 0 [L594] RET stopSystem() [L601] CALL timeShift() [L236] COND FALSE !(\read(pumpRunning)) [L243] COND FALSE !(\read(systemActive)) [L251] CALL __utac_acc__Specification3_spec__1() [L91] int tmp ; [L92] int tmp___0 ; [L93] int tmp___1 ; [L97] CALL, EXPR isMethaneLevelCritical() [L168] int retValue_acc ; [L171] retValue_acc = methaneLevelCritical [L172] return (retValue_acc); [L97] RET, EXPR isMethaneLevelCritical() [L97] tmp = isMethaneLevelCritical() [L99] COND FALSE !(\read(tmp)) [L103] CALL, EXPR getWaterLevel() [L200] int retValue_acc ; [L203] retValue_acc = waterLevel [L204] return (retValue_acc); [L103] RET, EXPR getWaterLevel() [L103] tmp___0 = getWaterLevel() [L105] COND TRUE tmp___0 == 2 [L107] CALL, EXPR isPumpRunning() [L360] int retValue_acc ; [L363] retValue_acc = pumpRunning [L364] return (retValue_acc); [L107] RET, EXPR isPumpRunning() [L107] tmp___1 = isPumpRunning() [L109] COND FALSE !(\read(tmp___1)) [L113] CALL __automaton_fail() [L44] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 41 procedures, 643 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 29.2s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 14.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 954 SDtfs, 1950 SDslu, 1268 SDs, 0 SdLazy, 3017 SolverSat, 759 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 9.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 119 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 4.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1209occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 3 MinimizatonAttempts, 438 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 12.8s InterpolantComputationTime, 674 NumberOfCodeBlocks, 674 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 494 ConstructedInterpolants, 0 QuantifiedInterpolants, 205257 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...