/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec5_product58.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 16:59:06,912 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 16:59:06,917 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 16:59:06,944 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 16:59:06,945 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 16:59:06,946 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 16:59:06,947 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 16:59:06,950 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 16:59:06,951 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 16:59:06,952 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 16:59:06,953 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 16:59:06,955 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 16:59:06,955 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 16:59:06,956 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 16:59:06,957 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 16:59:06,958 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 16:59:06,959 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 16:59:06,960 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 16:59:06,962 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 16:59:06,964 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 16:59:06,966 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 16:59:06,968 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 16:59:06,969 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 16:59:06,971 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 16:59:06,974 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 16:59:06,974 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 16:59:06,975 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 16:59:06,976 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 16:59:06,977 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 16:59:06,978 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 16:59:06,978 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 16:59:06,979 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 16:59:06,980 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 16:59:06,981 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 16:59:06,982 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 16:59:06,982 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 16:59:06,983 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 16:59:06,984 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 16:59:06,984 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 16:59:06,985 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 16:59:06,986 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 16:59:06,987 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-24 16:59:07,016 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 16:59:07,016 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 16:59:07,019 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 16:59:07,020 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 16:59:07,020 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 16:59:07,020 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 16:59:07,020 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 16:59:07,021 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 16:59:07,021 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 16:59:07,021 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 16:59:07,021 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 16:59:07,021 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 16:59:07,023 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 16:59:07,023 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 16:59:07,023 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 16:59:07,023 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 16:59:07,024 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 16:59:07,024 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 16:59:07,024 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 16:59:07,024 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 16:59:07,024 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 16:59:07,025 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 16:59:07,026 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 16:59:07,026 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 16:59:07,026 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 16:59:07,026 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 16:59:07,026 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 16:59:07,026 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 16:59:07,027 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 16:59:07,027 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;log-additional-information=true; [2020-09-24 16:59:07,481 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 16:59:07,498 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 16:59:07,503 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 16:59:07,504 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 16:59:07,505 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 16:59:07,506 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product58.cil.c [2020-09-24 16:59:07,605 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/486d500b8/29b2d5fb26254a1db86c8e752223a823/FLAG74a1f9683 [2020-09-24 16:59:08,222 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 16:59:08,223 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec5_product58.cil.c [2020-09-24 16:59:08,240 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/486d500b8/29b2d5fb26254a1db86c8e752223a823/FLAG74a1f9683 [2020-09-24 16:59:08,500 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/486d500b8/29b2d5fb26254a1db86c8e752223a823 [2020-09-24 16:59:08,516 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 16:59:08,526 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 16:59:08,528 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 16:59:08,528 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 16:59:08,532 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 16:59:08,534 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:59:08" (1/1) ... [2020-09-24 16:59:08,538 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51800d17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:59:08, skipping insertion in model container [2020-09-24 16:59:08,539 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:59:08" (1/1) ... [2020-09-24 16:59:08,549 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 16:59:08,618 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 16:59:08,982 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 16:59:09,008 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 16:59:09,217 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 16:59:09,272 INFO L208 MainTranslator]: Completed translation [2020-09-24 16:59:09,272 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:59:09 WrapperNode [2020-09-24 16:59:09,273 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 16:59:09,274 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 16:59:09,274 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 16:59:09,274 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 16:59:09,293 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:59:09" (1/1) ... [2020-09-24 16:59:09,293 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:59:09" (1/1) ... [2020-09-24 16:59:09,316 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:59:09" (1/1) ... [2020-09-24 16:59:09,317 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:59:09" (1/1) ... [2020-09-24 16:59:09,371 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:59:09" (1/1) ... [2020-09-24 16:59:09,384 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:59:09" (1/1) ... [2020-09-24 16:59:09,401 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:59:09" (1/1) ... [2020-09-24 16:59:09,415 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 16:59:09,416 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 16:59:09,416 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 16:59:09,416 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 16:59:09,422 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:59:09" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 16:59:09,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 16:59:09,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 16:59:09,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 16:59:09,507 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 16:59:09,508 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 16:59:09,508 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 16:59:09,508 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 16:59:09,508 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 16:59:09,508 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 16:59:09,508 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 16:59:09,509 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-24 16:59:09,509 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2020-09-24 16:59:09,509 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2020-09-24 16:59:09,509 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2020-09-24 16:59:09,509 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 16:59:09,510 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 16:59:09,510 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 16:59:09,510 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 16:59:09,510 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 16:59:09,510 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 16:59:09,511 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 16:59:09,511 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 16:59:09,511 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 16:59:09,511 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 16:59:09,511 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 16:59:09,511 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 16:59:09,512 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 16:59:09,512 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 16:59:09,512 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 16:59:09,512 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 16:59:09,512 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 16:59:09,512 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-09-24 16:59:09,513 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 16:59:09,513 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 16:59:09,513 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 16:59:09,513 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 16:59:09,513 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 16:59:09,513 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 16:59:09,513 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-24 16:59:09,514 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-24 16:59:09,514 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 16:59:09,514 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 16:59:09,514 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 16:59:09,514 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 16:59:09,515 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 16:59:09,515 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 16:59:09,515 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 16:59:09,515 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 16:59:09,515 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 16:59:09,515 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 16:59:09,515 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 16:59:09,516 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 16:59:09,516 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 16:59:09,516 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 16:59:09,516 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-24 16:59:09,516 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 16:59:09,516 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 16:59:09,517 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 16:59:09,517 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2020-09-24 16:59:09,517 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2020-09-24 16:59:09,517 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2020-09-24 16:59:09,517 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 16:59:09,517 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 16:59:09,518 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 16:59:09,518 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 16:59:09,518 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 16:59:09,518 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 16:59:09,518 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 16:59:09,518 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 16:59:09,518 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 16:59:09,519 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 16:59:09,519 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 16:59:09,519 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 16:59:09,519 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 16:59:09,519 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 16:59:09,519 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 16:59:09,520 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 16:59:09,520 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 16:59:09,520 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 16:59:09,520 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 16:59:09,520 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 16:59:09,520 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 16:59:09,521 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 16:59:09,521 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 16:59:09,521 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 16:59:09,521 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 16:59:09,521 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 16:59:09,522 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 16:59:09,522 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-24 16:59:09,522 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 16:59:09,522 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 16:59:09,522 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 16:59:09,522 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 16:59:09,523 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 16:59:09,523 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 16:59:09,523 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-24 16:59:09,523 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-09-24 16:59:09,523 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 16:59:09,523 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 16:59:09,524 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 16:59:09,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 16:59:09,524 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 16:59:10,770 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 16:59:10,770 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 16:59:10,778 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:59:10 BoogieIcfgContainer [2020-09-24 16:59:10,778 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 16:59:10,779 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 16:59:10,780 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 16:59:10,783 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 16:59:10,784 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 04:59:08" (1/3) ... [2020-09-24 16:59:10,785 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d2496b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:59:10, skipping insertion in model container [2020-09-24 16:59:10,785 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:59:09" (2/3) ... [2020-09-24 16:59:10,785 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d2496b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:59:10, skipping insertion in model container [2020-09-24 16:59:10,786 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:59:10" (3/3) ... [2020-09-24 16:59:10,788 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product58.cil.c [2020-09-24 16:59:10,800 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 16:59:10,812 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 16:59:10,835 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 16:59:10,865 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 16:59:10,865 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 16:59:10,866 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 16:59:10,866 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 16:59:10,866 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 16:59:10,866 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 16:59:10,866 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 16:59:10,866 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 16:59:10,897 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states. [2020-09-24 16:59:10,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-09-24 16:59:10,916 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:59:10,918 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 16:59:10,918 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:59:10,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:59:10,927 INFO L82 PathProgramCache]: Analyzing trace with hash 797820518, now seen corresponding path program 1 times [2020-09-24 16:59:10,938 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:59:10,939 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [83677350] [2020-09-24 16:59:10,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:59:11,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:11,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:11,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:13,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:13,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:16,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:25,797 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:25,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 197 [2020-09-24 16:59:25,806 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 16:59:25,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14454 [2020-09-24 16:59:25,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:25,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 16:59:25,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 161 [2020-09-24 16:59:25,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-24 16:59:25,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 16:59:26,334 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 16:59:26,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:59:26,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:26,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:26,501 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:26,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 16:59:26,502 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:26,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 133 [2020-09-24 16:59:26,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:26,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:26,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:26,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:26,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:59:26,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 16:59:26,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:26,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:26,584 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:26,584 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:59:26,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:26,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:59:26,585 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:26,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:26,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:26,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:26,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:59:26,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 16:59:26,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:26,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:26,594 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:26,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:59:26,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:26,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 16:59:26,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:26,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:26,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:26,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:26,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 16:59:26,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 16:59:26,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:26,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:26,613 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:26,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:59:26,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:26,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 16:59:26,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:26,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:26,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:26,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:26,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:59:26,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 16:59:26,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:26,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:26,621 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:26,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:59:26,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:26,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:59:26,622 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:26,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:26,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:26,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:26,623 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:59:26,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 16:59:26,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:26,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:26,651 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:26,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 16:59:26,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:26,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 16:59:26,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:26,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:26,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:26,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:26,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:59:26,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 16:59:26,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:26,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:26,669 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:26,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 16:59:26,669 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:26,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 16:59:26,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:26,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:26,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:26,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:26,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:59:26,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:59:26,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:26,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:26,681 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:26,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:59:26,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:26,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:59:26,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:26,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:26,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:26,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:26,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:59:26,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-24 16:59:26,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:26,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:26,695 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:26,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:59:26,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:26,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 16:59:26,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:26,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:59:26,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:26,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 16:59:26,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-24 16:59:26,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-24 16:59:26,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:26,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:26,719 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:26,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:59:26,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:26,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 16:59:26,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:26,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 16:59:26,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:26,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 16:59:26,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-24 16:59:26,823 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-24 16:59:26,824 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [83677350] [2020-09-24 16:59:26,826 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:59:26,826 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 16:59:26,827 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750199183] [2020-09-24 16:59:26,839 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 16:59:26,839 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:59:26,858 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 16:59:26,860 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 16:59:26,863 INFO L87 Difference]: Start difference. First operand 351 states. Second operand 9 states. [2020-09-24 16:59:27,511 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 16:59:28,347 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 16:59:28,693 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-24 16:59:30,301 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 16:59:30,624 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 16:59:30,966 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 16:59:31,384 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 16:59:31,703 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 16:59:32,041 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 16:59:32,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:59:32,956 INFO L93 Difference]: Finished difference Result 674 states and 804 transitions. [2020-09-24 16:59:32,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-24 16:59:32,959 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 160 [2020-09-24 16:59:32,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:59:32,981 INFO L225 Difference]: With dead ends: 674 [2020-09-24 16:59:32,981 INFO L226 Difference]: Without dead ends: 447 [2020-09-24 16:59:32,988 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-09-24 16:59:33,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2020-09-24 16:59:33,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 399. [2020-09-24 16:59:33,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 399 states. [2020-09-24 16:59:33,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 399 states to 399 states and 444 transitions. [2020-09-24 16:59:33,126 INFO L78 Accepts]: Start accepts. Automaton has 399 states and 444 transitions. Word has length 160 [2020-09-24 16:59:33,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:59:33,127 INFO L479 AbstractCegarLoop]: Abstraction has 399 states and 444 transitions. [2020-09-24 16:59:33,128 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 16:59:33,128 INFO L276 IsEmpty]: Start isEmpty. Operand 399 states and 444 transitions. [2020-09-24 16:59:33,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2020-09-24 16:59:33,135 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:59:33,135 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 16:59:33,136 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 16:59:33,136 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:59:33,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:59:33,136 INFO L82 PathProgramCache]: Analyzing trace with hash -548905277, now seen corresponding path program 1 times [2020-09-24 16:59:33,137 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:59:33,137 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [703141373] [2020-09-24 16:59:33,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:59:33,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:33,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:33,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:33,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:33,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:38,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:38,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking...