/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_spec3_product31.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 16:51:08,509 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 16:51:08,513 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 16:51:08,558 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 16:51:08,560 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 16:51:08,569 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 16:51:08,571 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 16:51:08,574 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 16:51:08,577 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 16:51:08,580 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 16:51:08,581 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 16:51:08,582 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 16:51:08,582 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 16:51:08,585 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 16:51:08,588 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 16:51:08,590 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 16:51:08,591 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 16:51:08,592 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 16:51:08,594 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 16:51:08,603 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 16:51:08,605 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 16:51:08,606 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 16:51:08,607 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 16:51:08,608 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 16:51:08,626 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 16:51:08,626 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 16:51:08,626 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 16:51:08,627 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 16:51:08,628 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 16:51:08,632 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 16:51:08,632 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 16:51:08,633 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 16:51:08,634 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 16:51:08,637 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 16:51:08,638 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 16:51:08,639 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 16:51:08,641 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 16:51:08,641 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 16:51:08,641 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 16:51:08,642 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 16:51:08,643 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 16:51:08,644 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 16:51:08,690 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 16:51:08,690 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 16:51:08,693 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 16:51:08,693 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 16:51:08,693 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 16:51:08,693 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 16:51:08,694 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 16:51:08,694 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 16:51:08,694 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 16:51:08,694 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 16:51:08,695 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 16:51:08,696 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 16:51:08,696 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 16:51:08,696 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 16:51:08,697 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 16:51:08,697 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 16:51:08,697 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 16:51:08,697 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 16:51:08,697 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 16:51:08,698 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 16:51:08,698 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 16:51:08,698 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 16:51:08,698 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 16:51:08,698 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 16:51:08,699 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 16:51:08,699 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 16:51:08,699 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 16:51:08,699 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 16:51:08,699 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 16:51:08,700 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 16:51:09,206 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 16:51:09,223 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 16:51:09,227 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 16:51:09,229 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 16:51:09,229 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 16:51:09,230 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product31.cil.c [2020-09-24 16:51:09,302 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/68a687122/e9856a068032496185a1934025045bd5/FLAG4ca096d0f [2020-09-24 16:51:09,937 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 16:51:09,938 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product31.cil.c [2020-09-24 16:51:09,950 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/68a687122/e9856a068032496185a1934025045bd5/FLAG4ca096d0f [2020-09-24 16:51:10,165 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/68a687122/e9856a068032496185a1934025045bd5 [2020-09-24 16:51:10,181 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 16:51:10,187 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 16:51:10,188 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 16:51:10,188 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 16:51:10,193 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 16:51:10,194 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:51:10" (1/1) ... [2020-09-24 16:51:10,199 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2970dae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:51:10, skipping insertion in model container [2020-09-24 16:51:10,199 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:51:10" (1/1) ... [2020-09-24 16:51:10,208 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 16:51:10,290 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 16:51:10,823 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 16:51:10,842 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 16:51:10,946 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 16:51:10,996 INFO L208 MainTranslator]: Completed translation [2020-09-24 16:51:10,996 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:51:10 WrapperNode [2020-09-24 16:51:10,997 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 16:51:10,997 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 16:51:10,998 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 16:51:10,998 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 16:51:11,013 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:51:10" (1/1) ... [2020-09-24 16:51:11,013 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:51:10" (1/1) ... [2020-09-24 16:51:11,034 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:51:10" (1/1) ... [2020-09-24 16:51:11,035 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:51:10" (1/1) ... [2020-09-24 16:51:11,069 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:51:10" (1/1) ... [2020-09-24 16:51:11,081 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:51:10" (1/1) ... [2020-09-24 16:51:11,087 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:51:10" (1/1) ... [2020-09-24 16:51:11,095 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 16:51:11,096 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 16:51:11,096 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 16:51:11,096 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 16:51:11,098 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:51:10" (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 16:51:11,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 16:51:11,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 16:51:11,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 16:51:11,187 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 16:51:11,187 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 16:51:11,187 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 16:51:11,187 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 16:51:11,188 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 16:51:11,188 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 16:51:11,188 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-24 16:51:11,188 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 16:51:11,188 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 16:51:11,189 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 16:51:11,189 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 16:51:11,189 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 16:51:11,189 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 16:51:11,189 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 16:51:11,190 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 16:51:11,190 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 16:51:11,190 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 16:51:11,190 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-09-24 16:51:11,190 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 16:51:11,191 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-09-24 16:51:11,191 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 16:51:11,191 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 16:51:11,191 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 16:51:11,191 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 16:51:11,191 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 16:51:11,192 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-24 16:51:11,192 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-24 16:51:11,192 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-24 16:51:11,192 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 16:51:11,192 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 16:51:11,192 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 16:51:11,193 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 16:51:11,193 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 16:51:11,193 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 16:51:11,193 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 16:51:11,193 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 16:51:11,193 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 16:51:11,193 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 16:51:11,194 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 16:51:11,194 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 16:51:11,194 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 16:51:11,194 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 16:51:11,194 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 16:51:11,194 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 16:51:11,195 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 16:51:11,195 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 16:51:11,195 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-24 16:51:11,195 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 16:51:11,195 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 16:51:11,195 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 16:51:11,196 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 16:51:11,196 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 16:51:11,196 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 16:51:11,196 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 16:51:11,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 16:51:11,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 16:51:11,197 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 16:51:11,197 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 16:51:11,197 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 16:51:11,197 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 16:51:11,197 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 16:51:11,197 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 16:51:11,198 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 16:51:11,198 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 16:51:11,198 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 16:51:11,198 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-24 16:51:11,198 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 16:51:11,198 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 16:51:11,198 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 16:51:11,199 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 16:51:11,199 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 16:51:11,199 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 16:51:11,199 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 16:51:11,199 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-24 16:51:11,199 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 16:51:11,200 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 16:51:11,200 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-24 16:51:11,200 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-09-24 16:51:11,200 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 16:51:11,200 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-09-24 16:51:11,200 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 16:51:11,200 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 16:51:11,201 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 16:51:11,201 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 16:51:11,201 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 16:51:11,201 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 16:51:11,201 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 16:51:11,201 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 16:51:11,202 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 16:51:11,202 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 16:51:11,202 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 16:51:12,574 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 16:51:12,574 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 16:51:12,582 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:51:12 BoogieIcfgContainer [2020-09-24 16:51:12,582 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 16:51:12,584 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 16:51:12,584 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 16:51:12,588 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 16:51:12,588 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 04:51:10" (1/3) ... [2020-09-24 16:51:12,589 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a76dabe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:51:12, skipping insertion in model container [2020-09-24 16:51:12,589 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:51:10" (2/3) ... [2020-09-24 16:51:12,590 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a76dabe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:51:12, skipping insertion in model container [2020-09-24 16:51:12,590 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:51:12" (3/3) ... [2020-09-24 16:51:12,592 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product31.cil.c [2020-09-24 16:51:12,605 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 16:51:12,617 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 16:51:12,640 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 16:51:12,674 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 16:51:12,675 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 16:51:12,675 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 16:51:12,675 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 16:51:12,675 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 16:51:12,675 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 16:51:12,675 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 16:51:12,676 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 16:51:12,706 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states. [2020-09-24 16:51:12,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-24 16:51:12,726 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:51:12,727 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 16:51:12,728 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:51:12,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:51:12,737 INFO L82 PathProgramCache]: Analyzing trace with hash -1392630044, now seen corresponding path program 1 times [2020-09-24 16:51:12,749 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:51:12,749 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1867640730] [2020-09-24 16:51:12,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:51:13,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:51:13,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:51:13,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:51:15,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:51:18,524 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:51:18,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-24 16:51:18,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 16:51:18,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5409 [2020-09-24 16:51:18,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:51:18,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:51:18,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-24 16:51:18,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:51:18,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-24 16:51:18,942 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 16:51:18,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:51:18,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:51:18,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:51:19,088 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:51:19,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 16:51:19,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:51:19,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 111 [2020-09-24 16:51:19,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:51:19,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:51:19,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:51:19,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:51:19,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:51:19,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 16:51:19,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:51:19,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:51:19,202 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:51:19,203 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:51:19,203 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:51:19,203 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 16:51:19,204 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:51:19,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:51:19,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:51:19,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:51:19,206 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 16:51:19,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 16:51:19,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:51:19,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:51:19,215 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:51:19,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:51:19,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:51:19,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:51:19,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:51:19,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:51:19,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:51:19,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:51:19,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:51:19,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 16:51:19,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:51:19,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:51:19,230 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:51:19,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:51:19,231 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:51:19,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 16:51:19,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:51:19,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:51:19,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:51:19,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:51:19,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:51:19,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 16:51:19,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:51:19,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:51:19,250 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:51:19,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:51:19,251 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:51:19,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 16:51:19,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:51:19,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:51:19,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:51:19,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:51:19,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:51:19,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 16:51:19,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:51:19,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:51:19,262 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:51:19,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:51:19,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:51:19,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 16:51:19,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:51:19,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:51:19,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 16:51:19,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:51:19,266 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:51:19,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 16:51:19,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:51:19,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:51:19,276 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:51:19,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:51:19,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:51:19,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:51:19,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:51:19,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:51:19,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 16:51:19,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:51:19,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:51:19,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-24 16:51:19,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:51:19,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:51:19,289 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:51:19,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:51:19,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:51:19,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:51:19,290 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:51:19,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:51:19,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 16:51:19,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:51:19,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:51:19,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 16:51:19,367 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1867640730] [2020-09-24 16:51:19,370 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:51:19,371 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 16:51:19,372 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775550933] [2020-09-24 16:51:19,383 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 16:51:19,384 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:51:19,412 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 16:51:19,413 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 16:51:19,418 INFO L87 Difference]: Start difference. First operand 322 states. Second operand 3 states. [2020-09-24 16:51:20,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:51:20,879 INFO L93 Difference]: Finished difference Result 491 states and 589 transitions. [2020-09-24 16:51:20,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 16:51:20,884 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-09-24 16:51:20,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:51:20,920 INFO L225 Difference]: With dead ends: 491 [2020-09-24 16:51:20,920 INFO L226 Difference]: Without dead ends: 304 [2020-09-24 16:51:20,931 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 16:51:20,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2020-09-24 16:51:21,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 261. [2020-09-24 16:51:21,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 261 states. [2020-09-24 16:51:21,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 286 transitions. [2020-09-24 16:51:21,068 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 286 transitions. Word has length 153 [2020-09-24 16:51:21,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:51:21,070 INFO L479 AbstractCegarLoop]: Abstraction has 261 states and 286 transitions. [2020-09-24 16:51:21,070 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 16:51:21,070 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 286 transitions. [2020-09-24 16:51:21,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-09-24 16:51:21,075 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:51:21,075 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 16:51:21,076 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 16:51:21,076 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:51:21,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:51:21,076 INFO L82 PathProgramCache]: Analyzing trace with hash 1904681825, now seen corresponding path program 1 times [2020-09-24 16:51:21,077 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:51:21,077 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1835744432] [2020-09-24 16:51:21,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:51:21,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:51:21,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:51:21,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:51:23,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:51:28,338 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:51:28,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-24 16:51:28,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 16:51:28,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7202 [2020-09-24 16:51:28,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:51:28,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:51:28,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-24 16:51:28,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 16:51:28,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:51:28,655 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 16:51:28,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:51:28,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:51:28,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:51:28,818 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:51:28,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 16:51:28,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:51:28,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 146 [2020-09-24 16:51:28,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:51:28,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:51:28,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:51:28,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:51:28,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:51:28,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 16:51:28,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:51:28,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:51:28,859 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:51:28,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:51:28,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:51:28,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:51:28,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:51:28,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:51:28,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:51:28,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:51:28,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:51:28,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 16:51:28,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:51:28,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:51:28,865 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:51:28,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:51:28,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:51:28,866 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:51:28,866 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:51:28,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:51:28,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:51:28,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:51:28,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:51:28,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 16:51:28,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:51:28,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:51:28,875 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:51:28,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:51:28,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:51:28,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 16:51:28,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:51:28,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:51:28,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:51:28,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:51:28,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:51:28,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 16:51:28,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:51:28,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:51:28,882 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:51:28,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:51:28,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:51:28,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:51:28,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:51:28,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:51:28,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:51:28,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:51:28,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:51:28,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-09-24 16:51:28,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:51:28,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:51:28,888 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:51:28,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:51:28,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:51:28,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:51:28,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:51:28,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:51:28,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 16:51:28,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:51:28,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:51:28,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-24 16:51:28,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:51:28,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:51:28,896 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:51:28,896 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:51:28,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:51:28,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:51:28,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:51:28,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:51:28,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 16:51:28,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:51:28,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:51:28,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-24 16:51:28,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:51:28,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:51:28,904 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:51:28,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:51:28,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:51:28,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:51:28,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:51:28,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:51:28,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 16:51:28,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:51:28,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:51:28,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 16:51:28,950 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1835744432] [2020-09-24 16:51:28,950 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:51:28,951 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 16:51:28,951 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545455931] [2020-09-24 16:51:28,955 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 16:51:28,955 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:51:28,956 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 16:51:28,956 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 16:51:28,956 INFO L87 Difference]: Start difference. First operand 261 states and 286 transitions. Second operand 4 states. [2020-09-24 16:51:29,643 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 16:51:30,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:51:30,790 INFO L93 Difference]: Finished difference Result 402 states and 456 transitions. [2020-09-24 16:51:30,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 16:51:30,791 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-09-24 16:51:30,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:51:30,794 INFO L225 Difference]: With dead ends: 402 [2020-09-24 16:51:30,795 INFO L226 Difference]: Without dead ends: 287 [2020-09-24 16:51:30,796 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-24 16:51:30,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2020-09-24 16:51:30,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 251. [2020-09-24 16:51:30,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 251 states. [2020-09-24 16:51:30,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 273 transitions. [2020-09-24 16:51:30,843 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 273 transitions. Word has length 154 [2020-09-24 16:51:30,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:51:30,845 INFO L479 AbstractCegarLoop]: Abstraction has 251 states and 273 transitions. [2020-09-24 16:51:30,846 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 16:51:30,846 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 273 transitions. [2020-09-24 16:51:30,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-09-24 16:51:30,852 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:51:30,853 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 16:51:30,853 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 16:51:30,853 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:51:30,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:51:30,857 INFO L82 PathProgramCache]: Analyzing trace with hash -533123061, now seen corresponding path program 1 times [2020-09-24 16:51:30,857 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:51:30,858 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1403233035] [2020-09-24 16:51:30,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:51:30,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:51:30,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:51:31,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:51:34,336 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:51:34,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 194 [2020-09-24 16:51:34,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 16:51:34,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3431 [2020-09-24 16:51:34,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:51:34,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 16:51:34,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-24 16:51:34,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-09-24 16:51:34,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:51:34,690 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 16:51:34,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:51:34,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:51:34,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:51:35,000 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:51:35,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 16:51:35,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:51:35,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 264 [2020-09-24 16:51:35,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:51:35,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:51:35,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:51:35,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-24 16:51:35,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:51:35,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 16:51:35,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:51:35,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:51:35,063 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:51:35,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:51:35,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:51:35,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 16:51:35,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:51:35,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:51:35,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:51:35,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 16:51:35,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:51:35,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 16:51:35,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:51:35,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:51:35,073 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:51:35,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:51:35,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:51:35,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 16:51:35,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:51:35,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:51:35,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:51:35,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 16:51:35,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:51:35,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 16:51:35,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:51:35,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:51:35,087 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:51:35,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:51:35,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:51:35,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 16:51:35,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:51:35,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:51:35,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:51:35,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 16:51:35,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:51:35,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 16:51:35,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:51:35,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:51:35,097 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:51:35,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:51:35,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:51:35,098 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:51:35,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:51:35,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:51:35,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:51:35,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 16:51:35,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:51:35,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 16:51:35,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:51:35,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:51:35,106 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:51:35,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:51:35,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:51:35,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:51:35,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:51:35,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:51:35,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 16:51:35,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:51:35,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:51:35,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-24 16:51:35,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:51:35,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:51:35,115 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:51:35,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:51:35,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:51:35,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:51:35,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:51:35,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:51:35,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 16:51:35,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:51:35,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:51:35,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2020-09-24 16:51:35,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:51:35,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:51:35,124 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:51:35,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:51:35,124 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:51:35,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:51:35,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:51:35,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:51:35,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 16:51:35,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:51:35,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:51:35,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 16:51:35,177 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1403233035] [2020-09-24 16:51:35,177 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:51:35,177 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 16:51:35,178 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324463565] [2020-09-24 16:51:35,179 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 16:51:35,179 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:51:35,179 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 16:51:35,180 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 16:51:35,180 INFO L87 Difference]: Start difference. First operand 251 states and 273 transitions. Second operand 4 states. [2020-09-24 16:51:35,686 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 16:51:37,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:51:37,433 INFO L93 Difference]: Finished difference Result 581 states and 670 transitions. [2020-09-24 16:51:37,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 16:51:37,434 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 163 [2020-09-24 16:51:37,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:51:37,439 INFO L225 Difference]: With dead ends: 581 [2020-09-24 16:51:37,439 INFO L226 Difference]: Without dead ends: 440 [2020-09-24 16:51:37,440 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-24 16:51:37,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 440 states. [2020-09-24 16:51:37,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 440 to 386. [2020-09-24 16:51:37,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 386 states. [2020-09-24 16:51:37,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 431 transitions. [2020-09-24 16:51:37,539 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 431 transitions. Word has length 163 [2020-09-24 16:51:37,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:51:37,540 INFO L479 AbstractCegarLoop]: Abstraction has 386 states and 431 transitions. [2020-09-24 16:51:37,540 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 16:51:37,540 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 431 transitions. [2020-09-24 16:51:37,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-09-24 16:51:37,543 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:51:37,543 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 16:51:37,544 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 16:51:37,544 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:51:37,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:51:37,545 INFO L82 PathProgramCache]: Analyzing trace with hash -1712848447, now seen corresponding path program 1 times [2020-09-24 16:51:37,545 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:51:37,545 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [385962713] [2020-09-24 16:51:37,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:51:37,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:51:37,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:51:39,335 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:51:39,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 205 [2020-09-24 16:51:39,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:51:39,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1738 [2020-09-24 16:51:39,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:51:39,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-24 16:51:39,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-24 16:51:39,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-09-24 16:51:39,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:51:39,650 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 16:51:39,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:51:39,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:51:39,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:51:39,964 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:51:39,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 16:51:39,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:51:39,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 280 [2020-09-24 16:51:39,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:51:39,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:51:39,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:51:39,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-24 16:51:39,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:51:40,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 16:51:40,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:51:40,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:51:40,043 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:51:40,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:51:40,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:51:40,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 16:51:40,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:51:40,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:51:40,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:51:40,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 16:51:40,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:51:40,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 16:51:40,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:51:40,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:51:40,053 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:51:40,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:51:40,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:51:40,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:51:40,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:51:40,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:51:40,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:51:40,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 16:51:40,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:51:40,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 16:51:40,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:51:40,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:51:40,067 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:51:40,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:51:40,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:51:40,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 16:51:40,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:51:40,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:51:40,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:51:40,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 16:51:40,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:51:40,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 16:51:40,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:51:40,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:51:40,078 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:51:40,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:51:40,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:51:40,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 16:51:40,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:51:40,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:51:40,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:51:40,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 16:51:40,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:51:40,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-24 16:51:40,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:51:40,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:51:40,119 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:51:40,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 16:51:40,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:51:40,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 16:51:40,121 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:51:40,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:51:40,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:51:40,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 16:51:40,122 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:51:40,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-09-24 16:51:40,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:51:40,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:51:40,132 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:51:40,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:51:40,133 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:51:40,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 16:51:40,134 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:51:40,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:51:40,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:51:40,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 16:51:40,135 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:51:40,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-09-24 16:51:40,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:51:40,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:51:40,152 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:51:40,153 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:51:40,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:51:40,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 16:51:40,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:51:40,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 16:51:40,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:51:40,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 16:51:40,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:51:40,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-09-24 16:51:40,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:51:40,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:51:40,213 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:51:40,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:51:40,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:51:40,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 16:51:40,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:51:40,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:51:40,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 16:51:40,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:51:40,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:51:40,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 16:51:40,295 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [385962713] [2020-09-24 16:51:40,296 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:51:40,296 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 16:51:40,297 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513426713] [2020-09-24 16:51:40,299 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 16:51:40,299 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:51:40,300 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 16:51:40,300 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-24 16:51:40,300 INFO L87 Difference]: Start difference. First operand 386 states and 431 transitions. Second operand 10 states. [2020-09-24 16:51:41,067 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 16:51:43,187 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 16:51:43,818 WARN L193 SmtUtils]: Spent 571.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 192 [2020-09-24 16:51:44,168 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 16:51:44,507 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 16:51:44,801 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 16:51:45,104 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 16:51:45,387 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 16:51:45,798 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 16:51:46,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:51:46,532 INFO L93 Difference]: Finished difference Result 1041 states and 1263 transitions. [2020-09-24 16:51:46,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-24 16:51:46,534 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 172 [2020-09-24 16:51:46,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:51:46,540 INFO L225 Difference]: With dead ends: 1041 [2020-09-24 16:51:46,541 INFO L226 Difference]: Without dead ends: 765 [2020-09-24 16:51:46,542 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=103, Invalid=277, Unknown=0, NotChecked=0, Total=380 [2020-09-24 16:51:46,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 765 states. [2020-09-24 16:51:46,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 765 to 659. [2020-09-24 16:51:46,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 659 states. [2020-09-24 16:51:46,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 659 states to 659 states and 759 transitions. [2020-09-24 16:51:46,644 INFO L78 Accepts]: Start accepts. Automaton has 659 states and 759 transitions. Word has length 172 [2020-09-24 16:51:46,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:51:46,645 INFO L479 AbstractCegarLoop]: Abstraction has 659 states and 759 transitions. [2020-09-24 16:51:46,645 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 16:51:46,645 INFO L276 IsEmpty]: Start isEmpty. Operand 659 states and 759 transitions. [2020-09-24 16:51:46,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-09-24 16:51:46,650 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:51:46,650 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 16:51:46,650 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 16:51:46,650 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:51:46,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:51:46,651 INFO L82 PathProgramCache]: Analyzing trace with hash 1677643238, now seen corresponding path program 1 times [2020-09-24 16:51:46,651 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:51:46,651 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1886805450] [2020-09-24 16:51:46,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:51:46,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-24 16:51:46,716 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-24 16:51:46,716 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-24 16:51:46,722 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 16:51:46,749 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 04:51:46 BoogieIcfgContainer [2020-09-24 16:51:46,750 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 16:51:46,752 INFO L168 Benchmark]: Toolchain (without parser) took 36569.62 ms. Allocated memory was 139.5 MB in the beginning and 670.0 MB in the end (delta: 530.6 MB). Free memory was 99.7 MB in the beginning and 436.9 MB in the end (delta: -337.2 MB). Peak memory consumption was 193.4 MB. Max. memory is 7.1 GB. [2020-09-24 16:51:46,753 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 139.5 MB. Free memory was 119.7 MB in the beginning and 119.3 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. [2020-09-24 16:51:46,754 INFO L168 Benchmark]: CACSL2BoogieTranslator took 809.06 ms. Allocated memory was 139.5 MB in the beginning and 201.9 MB in the end (delta: 62.4 MB). Free memory was 99.3 MB in the beginning and 169.9 MB in the end (delta: -70.6 MB). Peak memory consumption was 25.8 MB. Max. memory is 7.1 GB. [2020-09-24 16:51:46,755 INFO L168 Benchmark]: Boogie Preprocessor took 97.80 ms. Allocated memory is still 201.9 MB. Free memory was 169.9 MB in the beginning and 166.1 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.9 MB. Max. memory is 7.1 GB. [2020-09-24 16:51:46,755 INFO L168 Benchmark]: RCFGBuilder took 1486.91 ms. Allocated memory was 201.9 MB in the beginning and 234.9 MB in the end (delta: 33.0 MB). Free memory was 166.1 MB in the beginning and 174.5 MB in the end (delta: -8.4 MB). Peak memory consumption was 84.2 MB. Max. memory is 7.1 GB. [2020-09-24 16:51:46,756 INFO L168 Benchmark]: TraceAbstraction took 34166.16 ms. Allocated memory was 234.9 MB in the beginning and 670.0 MB in the end (delta: 435.2 MB). Free memory was 174.5 MB in the beginning and 436.9 MB in the end (delta: -262.4 MB). Peak memory consumption was 172.7 MB. Max. memory is 7.1 GB. [2020-09-24 16:51:46,760 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 139.5 MB. Free memory was 119.7 MB in the beginning and 119.3 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 809.06 ms. Allocated memory was 139.5 MB in the beginning and 201.9 MB in the end (delta: 62.4 MB). Free memory was 99.3 MB in the beginning and 169.9 MB in the end (delta: -70.6 MB). Peak memory consumption was 25.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 97.80 ms. Allocated memory is still 201.9 MB. Free memory was 169.9 MB in the beginning and 166.1 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1486.91 ms. Allocated memory was 201.9 MB in the beginning and 234.9 MB in the end (delta: 33.0 MB). Free memory was 166.1 MB in the beginning and 174.5 MB in the end (delta: -8.4 MB). Peak memory consumption was 84.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 34166.16 ms. Allocated memory was 234.9 MB in the beginning and 670.0 MB in the end (delta: 435.2 MB). Free memory was 174.5 MB in the beginning and 436.9 MB in the end (delta: -262.4 MB). Peak memory consumption was 172.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 140]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L47] int waterLevel = 1; [L48] int methaneLevelCritical = 0; [L314] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L585] int pumpRunning = 0; [L586] int systemActive = 1; [L868] int cleanupTimeShifts = 4; [L941] int retValue_acc ; [L942] int tmp ; [L946] FCALL select_helpers() [L947] FCALL select_features() [L948] CALL, EXPR valid_product() [L859] int retValue_acc ; [L862] retValue_acc = 1 [L863] return (retValue_acc); [L948] RET, EXPR valid_product() [L948] tmp = valid_product() [L950] COND TRUE \read(tmp) [L952] FCALL setup() [L953] CALL runTest() [L935] CALL test() [L515] int splverifierCounter ; [L516] int tmp ; [L517] int tmp___0 ; [L518] int tmp___1 ; [L519] int tmp___2 ; [L522] splverifierCounter = 0 [L524] COND TRUE 1 [L526] COND TRUE splverifierCounter < 4 [L532] tmp = __VERIFIER_nondet_int() [L534] COND TRUE \read(tmp) [L536] CALL waterRise() [L65] COND TRUE waterLevel < 2 [L66] waterLevel = waterLevel + 1 [L536] RET waterRise() [L542] tmp___0 = __VERIFIER_nondet_int() [L544] COND FALSE !(\read(tmp___0)) [L552] tmp___2 = __VERIFIER_nondet_int() [L554] COND FALSE !(\read(tmp___2)) [L558] tmp___1 = __VERIFIER_nondet_int() [L560] COND TRUE \read(tmp___1) [L562] CALL stopSystem() [L784] COND FALSE !(\read(pumpRunning)) [L791] systemActive = 0 [L562] RET stopSystem() [L569] CALL timeShift() [L593] COND FALSE !(\read(pumpRunning)) [L600] COND FALSE !(\read(systemActive)) [L608] CALL __utac_acc__Specification3_spec__1() [L797] int tmp ; [L798] int tmp___0 ; [L799] int tmp___1 ; [L803] CALL, EXPR isMethaneLevelCritical() [L86] int retValue_acc ; [L89] retValue_acc = methaneLevelCritical [L90] return (retValue_acc); [L803] RET, EXPR isMethaneLevelCritical() [L803] tmp = isMethaneLevelCritical() [L805] COND FALSE !(\read(tmp)) [L809] CALL, EXPR getWaterLevel() [L118] int retValue_acc ; [L121] retValue_acc = waterLevel [L122] return (retValue_acc); [L809] RET, EXPR getWaterLevel() [L809] tmp___0 = getWaterLevel() [L811] COND TRUE tmp___0 == 2 [L813] CALL, EXPR isPumpRunning() [L717] int retValue_acc ; [L720] retValue_acc = pumpRunning [L721] return (retValue_acc); [L813] RET, EXPR isPumpRunning() [L813] tmp___1 = isPumpRunning() [L815] COND FALSE !(\read(tmp___1)) [L819] CALL __automaton_fail() [L140] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 40 procedures, 636 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 34.0s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 11.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1004 SDtfs, 1472 SDslu, 802 SDs, 0 SdLazy, 2113 SolverSat, 544 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 102 GetRequests, 76 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 4.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=659occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 4 MinimizatonAttempts, 239 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 20.8s InterpolantComputationTime, 819 NumberOfCodeBlocks, 819 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 638 ConstructedInterpolants, 0 QuantifiedInterpolants, 266371 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...