/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_product10.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 16:56:46,904 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 16:56:46,909 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 16:56:46,956 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 16:56:46,958 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 16:56:46,970 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 16:56:46,971 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 16:56:46,974 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 16:56:46,977 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 16:56:46,979 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 16:56:46,980 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 16:56:46,982 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 16:56:46,983 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 16:56:46,987 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 16:56:46,989 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 16:56:46,991 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 16:56:46,993 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 16:56:46,995 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 16:56:46,997 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 16:56:47,004 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 16:56:47,007 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 16:56:47,008 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 16:56:47,009 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 16:56:47,010 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 16:56:47,015 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 16:56:47,015 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 16:56:47,015 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 16:56:47,019 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 16:56:47,019 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 16:56:47,021 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 16:56:47,022 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 16:56:47,023 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 16:56:47,023 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 16:56:47,024 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 16:56:47,026 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 16:56:47,026 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 16:56:47,027 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 16:56:47,027 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 16:56:47,027 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 16:56:47,028 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 16:56:47,029 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 16:56:47,030 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 16:56:47,078 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 16:56:47,078 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 16:56:47,081 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 16:56:47,081 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 16:56:47,081 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 16:56:47,081 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 16:56:47,082 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 16:56:47,082 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 16:56:47,082 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 16:56:47,082 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 16:56:47,083 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 16:56:47,084 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 16:56:47,084 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 16:56:47,085 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 16:56:47,085 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 16:56:47,085 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 16:56:47,085 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 16:56:47,086 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 16:56:47,086 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 16:56:47,086 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 16:56:47,086 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 16:56:47,086 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 16:56:47,087 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 16:56:47,087 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 16:56:47,087 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 16:56:47,087 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 16:56:47,087 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 16:56:47,088 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 16:56:47,088 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 16:56:47,088 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 16:56:47,530 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 16:56:47,554 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 16:56:47,558 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 16:56:47,560 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 16:56:47,561 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 16:56:47,562 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product10.cil.c [2020-09-24 16:56:47,655 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/180e50c72/22ff5f1bd50e4d8091c1824ffe4e4ab6/FLAG31d65c7ca [2020-09-24 16:56:48,245 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 16:56:48,246 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec5_product10.cil.c [2020-09-24 16:56:48,262 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/180e50c72/22ff5f1bd50e4d8091c1824ffe4e4ab6/FLAG31d65c7ca [2020-09-24 16:56:48,555 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/180e50c72/22ff5f1bd50e4d8091c1824ffe4e4ab6 [2020-09-24 16:56:48,568 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 16:56:48,573 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 16:56:48,574 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 16:56:48,574 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 16:56:48,578 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 16:56:48,580 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:56:48" (1/1) ... [2020-09-24 16:56:48,584 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@af20ea9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:56:48, skipping insertion in model container [2020-09-24 16:56:48,584 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:56:48" (1/1) ... [2020-09-24 16:56:48,593 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 16:56:48,645 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 16:56:48,984 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 16:56:48,999 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 16:56:49,194 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 16:56:49,230 INFO L208 MainTranslator]: Completed translation [2020-09-24 16:56:49,231 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:56:49 WrapperNode [2020-09-24 16:56:49,231 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 16:56:49,232 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 16:56:49,232 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 16:56:49,232 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 16:56:49,249 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:56:49" (1/1) ... [2020-09-24 16:56:49,250 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:56:49" (1/1) ... [2020-09-24 16:56:49,271 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:56:49" (1/1) ... [2020-09-24 16:56:49,271 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:56:49" (1/1) ... [2020-09-24 16:56:49,329 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:56:49" (1/1) ... [2020-09-24 16:56:49,345 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:56:49" (1/1) ... [2020-09-24 16:56:49,353 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:56:49" (1/1) ... [2020-09-24 16:56:49,372 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 16:56:49,373 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 16:56:49,373 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 16:56:49,374 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 16:56:49,377 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:56:49" (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 16:56:49,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 16:56:49,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 16:56:49,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 16:56:49,486 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 16:56:49,486 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 16:56:49,486 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 16:56:49,487 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 16:56:49,487 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 16:56:49,487 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 16:56:49,488 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 16:56:49,488 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 16:56:49,489 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 16:56:49,489 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 16:56:49,489 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2020-09-24 16:56:49,489 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2020-09-24 16:56:49,490 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2020-09-24 16:56:49,490 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 16:56:49,490 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 16:56:49,491 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 16:56:49,491 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 16:56:49,491 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 16:56:49,491 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 16:56:49,491 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 16:56:49,492 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 16:56:49,492 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 16:56:49,493 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__base [2020-09-24 16:56:49,493 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 16:56:49,493 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 16:56:49,493 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 16:56:49,494 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 16:56:49,494 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 16:56:49,494 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-24 16:56:49,494 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 16:56:49,494 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 16:56:49,494 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 16:56:49,494 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 16:56:49,495 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 16:56:49,495 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 16:56:49,495 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 16:56:49,495 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 16:56:49,495 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 16:56:49,495 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 16:56:49,496 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 16:56:49,496 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 16:56:49,496 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 16:56:49,496 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 16:56:49,496 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 16:56:49,496 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 16:56:49,497 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 16:56:49,497 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 16:56:49,497 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 16:56:49,497 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 16:56:49,497 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 16:56:49,498 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 16:56:49,498 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2020-09-24 16:56:49,498 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2020-09-24 16:56:49,498 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2020-09-24 16:56:49,499 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 16:56:49,499 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 16:56:49,499 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 16:56:49,499 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 16:56:49,499 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 16:56:49,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 16:56:49,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 16:56:49,500 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 16:56:49,500 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 16:56:49,500 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 16:56:49,500 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 16:56:49,500 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 16:56:49,500 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 16:56:49,501 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 16:56:49,501 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 16:56:49,502 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 16:56:49,502 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-24 16:56:49,503 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 16:56:49,503 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 16:56:49,503 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 16:56:49,504 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 16:56:49,504 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 16:56:49,504 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 16:56:49,504 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 16:56:49,504 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__base [2020-09-24 16:56:49,504 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 16:56:49,505 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 16:56:49,505 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 16:56:49,505 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 16:56:49,505 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 16:56:49,505 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 16:56:49,505 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 16:56:49,506 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 16:56:50,590 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 16:56:50,591 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 16:56:50,598 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:56:50 BoogieIcfgContainer [2020-09-24 16:56:50,598 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 16:56:50,599 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 16:56:50,599 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 16:56:50,603 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 16:56:50,603 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 04:56:48" (1/3) ... [2020-09-24 16:56:50,604 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@280fb526 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:56:50, skipping insertion in model container [2020-09-24 16:56:50,604 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:56:49" (2/3) ... [2020-09-24 16:56:50,605 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@280fb526 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:56:50, skipping insertion in model container [2020-09-24 16:56:50,605 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:56:50" (3/3) ... [2020-09-24 16:56:50,607 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product10.cil.c [2020-09-24 16:56:50,618 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 16:56:50,629 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 16:56:50,651 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 16:56:50,680 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 16:56:50,680 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 16:56:50,680 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 16:56:50,681 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 16:56:50,681 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 16:56:50,681 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 16:56:50,681 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 16:56:50,681 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 16:56:50,707 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states. [2020-09-24 16:56:50,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-09-24 16:56:50,723 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:56:50,725 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 16:56:50,725 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:56:50,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:56:50,733 INFO L82 PathProgramCache]: Analyzing trace with hash 306358439, now seen corresponding path program 1 times [2020-09-24 16:56:50,744 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:56:50,745 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2090309571] [2020-09-24 16:56:50,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:56:51,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:56:51,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:56:51,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:56:53,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:56:53,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:56:54,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:57:02,531 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:57:02,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 197 [2020-09-24 16:57:02,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 16:57:02,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11447 [2020-09-24 16:57:02,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:57:02,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:57:02,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-09-24 16:57:02,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:57:02,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 16:57:02,953 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 16:57:02,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:57:02,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:57:02,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:57:03,083 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:57:03,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 16:57:03,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:57:03,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 112 [2020-09-24 16:57:03,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:57:03,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:57:03,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:57:03,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:57:03,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:57:03,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 16:57:03,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:57:03,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:57:03,151 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:57:03,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:57:03,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:57:03,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:57:03,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:57:03,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:57:03,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:57:03,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:57:03,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:57:03,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 16:57:03,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:57:03,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:57:03,158 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:57:03,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:57:03,159 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:57:03,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:57:03,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:57:03,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:57:03,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:57:03,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:57:03,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:57:03,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 16:57:03,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:57:03,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:57:03,170 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:57:03,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:57:03,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:57:03,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 16:57:03,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:57:03,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:57:03,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:57:03,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:57:03,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:57:03,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 16:57:03,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:57:03,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:57:03,180 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:57:03,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:57:03,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:57:03,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 16:57:03,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:57:03,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:57:03,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:57:03,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:57:03,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:57:03,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 16:57:03,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:57:03,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:57:03,200 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:57:03,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 16:57:03,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:57:03,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:57:03,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:57:03,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:57:03,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:57:03,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:57:03,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:57:03,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 16:57:03,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:57:03,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:57:03,217 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:57:03,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 16:57:03,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:57:03,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 16:57:03,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:57:03,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:57:03,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 16:57:03,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:57:03,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:57:03,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:57:03,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:57:03,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:57:03,230 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:57:03,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:57:03,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:57:03,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:57:03,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:57:03,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:57:03,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:57:03,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:57:03,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:57:03,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-24 16:57:03,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:57:03,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:57:03,242 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:57:03,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:57:03,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:57:03,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:57:03,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:57:03,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:57:03,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 16:57:03,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:57:03,245 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 16:57:03,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-24 16:57:03,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:57:03,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:57:03,254 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:57:03,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:57:03,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:57:03,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:57:03,255 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:57:03,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:57:03,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 16:57:03,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:57:03,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-24 16:57:03,307 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 16:57:03,308 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2090309571] [2020-09-24 16:57:03,311 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:57:03,311 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 16:57:03,312 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191308961] [2020-09-24 16:57:03,323 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 16:57:03,323 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:57:03,341 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 16:57:03,342 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-24 16:57:03,345 INFO L87 Difference]: Start difference. First operand 258 states. Second operand 4 states. [2020-09-24 16:57:04,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:57:04,505 INFO L93 Difference]: Finished difference Result 371 states and 440 transitions. [2020-09-24 16:57:04,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-24 16:57:04,507 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 160 [2020-09-24 16:57:04,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:57:04,532 INFO L225 Difference]: With dead ends: 371 [2020-09-24 16:57:04,533 INFO L226 Difference]: Without dead ends: 249 [2020-09-24 16:57:04,539 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-24 16:57:04,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2020-09-24 16:57:04,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 207. [2020-09-24 16:57:04,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 207 states. [2020-09-24 16:57:04,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 222 transitions. [2020-09-24 16:57:04,736 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 222 transitions. Word has length 160 [2020-09-24 16:57:04,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:57:04,741 INFO L479 AbstractCegarLoop]: Abstraction has 207 states and 222 transitions. [2020-09-24 16:57:04,741 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 16:57:04,741 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 222 transitions. [2020-09-24 16:57:04,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-24 16:57:04,751 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:57:04,751 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, 1] [2020-09-24 16:57:04,751 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 16:57:04,752 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:57:04,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:57:04,753 INFO L82 PathProgramCache]: Analyzing trace with hash 1298068494, now seen corresponding path program 1 times [2020-09-24 16:57:04,753 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:57:04,753 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1035915537] [2020-09-24 16:57:04,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:57:04,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:57:04,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:57:04,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:57:06,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:57:06,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:57:08,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:57:21,354 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:57:21,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 198 [2020-09-24 16:57:21,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 16:57:21,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16535 [2020-09-24 16:57:21,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:57:21,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-24 16:57:21,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 153 [2020-09-24 16:57:21,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-09-24 16:57:21,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:57:21,677 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 16:57:21,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:57:21,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:57:21,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:57:21,779 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:57:21,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 16:57:21,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:57:21,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-09-24 16:57:21,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:57:21,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:57:21,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:57:21,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:57:21,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:57:21,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 16:57:21,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:57:21,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:57:21,815 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:57:21,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:57:21,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:57:21,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:57:21,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:57:21,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:57:21,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:57:21,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:57:21,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:57:21,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 16:57:21,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:57:21,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:57:21,820 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:57:21,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:57:21,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:57:21,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:57:21,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:57:21,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:57:21,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:57:21,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:57:21,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:57:21,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 16:57:21,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:57:21,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:57:21,827 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:57:21,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:57:21,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:57:21,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 16:57:21,828 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:57:21,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:57:21,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:57:21,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:57:21,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:57:21,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 16:57:21,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:57:21,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:57:21,834 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:57:21,834 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:57:21,834 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:57:21,834 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:57:21,835 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:57:21,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:57:21,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:57:21,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:57:21,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:57:21,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 16:57:21,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:57:21,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:57:21,858 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:57:21,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 16:57:21,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:57:21,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:57:21,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:57:21,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:57:21,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:57:21,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:57:21,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:57:21,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 16:57:21,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:57:21,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:57:21,872 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:57:21,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 16:57:21,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:57:21,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 16:57:21,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:57:21,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 16:57:21,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:57:21,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-24 16:57:21,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:57:21,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:57:21,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:57:21,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:57:21,903 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:57:21,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:57:21,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:57:21,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 16:57:21,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:57:21,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 16:57:21,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:57:21,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 16:57:21,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:57:21,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-09-24 16:57:21,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:57:21,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:57:21,936 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:57:21,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:57:21,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:57:21,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:57:21,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:57:21,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:57:21,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:57:21,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 16:57:21,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:57:21,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-24 16:57:21,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:57:21,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:57:21,948 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:57:21,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:57:21,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:57:21,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 16:57:21,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:57:21,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 16:57:21,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:57:21,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 16:57:21,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:57:21,984 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 16:57:21,985 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1035915537] [2020-09-24 16:57:21,985 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:57:21,985 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-24 16:57:21,986 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610967478] [2020-09-24 16:57:21,989 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-24 16:57:21,990 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:57:21,990 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-24 16:57:21,990 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2020-09-24 16:57:21,990 INFO L87 Difference]: Start difference. First operand 207 states and 222 transitions. Second operand 11 states. [2020-09-24 16:57:23,176 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 16:57:23,502 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 16:57:23,844 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 16:57:24,399 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 16:57:24,687 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 16:57:25,336 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 16:57:25,639 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 16:57:25,999 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 16:57:26,352 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 16:57:26,665 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 16:57:27,001 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-24 16:57:27,333 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 16:57:27,660 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 16:57:27,985 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 16:57:28,342 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-24 16:57:28,767 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 16:57:29,182 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 16:57:30,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:57:30,509 INFO L93 Difference]: Finished difference Result 491 states and 599 transitions. [2020-09-24 16:57:30,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-09-24 16:57:30,510 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 161 [2020-09-24 16:57:30,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:57:30,512 INFO L225 Difference]: With dead ends: 491 [2020-09-24 16:57:30,513 INFO L226 Difference]: Without dead ends: 0 [2020-09-24 16:57:30,518 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 181 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=221, Invalid=771, Unknown=0, NotChecked=0, Total=992 [2020-09-24 16:57:30,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-24 16:57:30,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-24 16:57:30,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-24 16:57:30,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-24 16:57:30,519 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 161 [2020-09-24 16:57:30,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:57:30,519 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-24 16:57:30,520 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-24 16:57:30,520 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-24 16:57:30,520 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-24 16:57:30,520 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 16:57:30,523 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-24 16:57:30,696 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 16:57:30,856 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 16:57:31,027 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 16:57:31,191 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 16:57:31,359 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 16:57:31,521 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 16:57:31,672 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 16:57:31,829 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 16:57:31,984 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 16:57:32,135 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 16:57:32,296 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 189 [2020-09-24 16:57:32,459 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 16:57:32,610 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 16:57:32,766 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 16:57:32,924 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 16:57:33,072 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 16:57:33,316 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 193 [2020-09-24 16:57:33,563 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 193 [2020-09-24 16:57:33,840 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 193 [2020-09-24 16:57:34,079 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 193 [2020-09-24 16:57:34,223 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 16:57:34,461 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 193 [2020-09-24 16:57:34,706 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 193 [2020-09-24 16:57:34,982 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 193 [2020-09-24 16:57:35,225 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 193 [2020-09-24 16:57:35,369 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 16:57:35,517 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 189 [2020-09-24 16:57:35,666 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 16:57:35,819 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 16:57:35,963 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 16:57:36,113 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 189 [2020-09-24 16:57:36,256 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 16:57:36,404 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 16:57:36,547 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 16:57:36,703 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 16:57:36,851 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 16:57:37,005 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 16:57:37,158 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 16:57:37,308 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 16:57:37,452 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 16:57:37,595 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 16:57:37,748 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 16:57:37,892 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 16:57:38,041 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 16:57:38,188 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 187