/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.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 SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.3 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product16.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-29 11:37:24,952 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-29 11:37:24,956 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-29 11:37:25,008 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-29 11:37:25,009 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-29 11:37:25,015 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-29 11:37:25,017 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-29 11:37:25,022 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-29 11:37:25,025 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-29 11:37:25,031 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-29 11:37:25,032 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-29 11:37:25,033 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-29 11:37:25,033 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-29 11:37:25,037 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-29 11:37:25,038 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-29 11:37:25,040 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-29 11:37:25,041 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-29 11:37:25,044 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-29 11:37:25,052 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-29 11:37:25,061 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-29 11:37:25,063 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-29 11:37:25,064 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-29 11:37:25,066 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-29 11:37:25,068 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-29 11:37:25,076 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-29 11:37:25,077 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-29 11:37:25,088 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-29 11:37:25,090 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-29 11:37:25,090 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-29 11:37:25,091 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-29 11:37:25,092 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-29 11:37:25,092 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-29 11:37:25,094 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-29 11:37:25,095 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-29 11:37:25,096 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-29 11:37:25,096 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-29 11:37:25,097 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-29 11:37:25,097 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-29 11:37:25,097 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-29 11:37:25,101 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-29 11:37:25,102 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-29 11:37:25,110 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-29 11:37:25,148 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-29 11:37:25,148 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-29 11:37:25,153 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-29 11:37:25,153 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-29 11:37:25,154 INFO L138 SettingsManager]: * Use SBE=true [2020-10-29 11:37:25,154 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-29 11:37:25,154 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-29 11:37:25,154 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-29 11:37:25,154 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-29 11:37:25,154 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-29 11:37:25,156 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-29 11:37:25,156 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-29 11:37:25,156 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-29 11:37:25,156 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-29 11:37:25,156 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-29 11:37:25,157 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-29 11:37:25,157 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-29 11:37:25,157 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-29 11:37:25,157 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-29 11:37:25,157 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-29 11:37:25,158 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-29 11:37:25,158 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 11:37:25,158 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-29 11:37:25,158 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-29 11:37:25,158 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-29 11:37:25,158 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-29 11:37:25,159 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-29 11:37:25,159 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-29 11:37:25,159 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-29 11:37:25,159 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true;unknown-allowed=true; [2020-10-29 11:37:25,571 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-29 11:37:25,597 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-29 11:37:25,601 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-29 11:37:25,602 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-29 11:37:25,603 INFO L275 PluginConnector]: CDTParser initialized [2020-10-29 11:37:25,604 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product16.cil.c [2020-10-29 11:37:25,695 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e64c1efed/3478b34ad83b4d8188d2eaf83cb4948f/FLAGaa95d2a5a [2020-10-29 11:37:26,487 INFO L306 CDTParser]: Found 1 translation units. [2020-10-29 11:37:26,488 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product16.cil.c [2020-10-29 11:37:26,502 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e64c1efed/3478b34ad83b4d8188d2eaf83cb4948f/FLAGaa95d2a5a [2020-10-29 11:37:26,779 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e64c1efed/3478b34ad83b4d8188d2eaf83cb4948f [2020-10-29 11:37:26,782 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-29 11:37:26,789 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-29 11:37:26,791 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-29 11:37:26,792 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-29 11:37:26,797 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-29 11:37:26,798 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 11:37:26" (1/1) ... [2020-10-29 11:37:26,802 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@739f948 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:37:26, skipping insertion in model container [2020-10-29 11:37:26,802 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 11:37:26" (1/1) ... [2020-10-29 11:37:26,811 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-29 11:37:26,851 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-29 11:37:27,216 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 11:37:27,228 INFO L203 MainTranslator]: Completed pre-run [2020-10-29 11:37:27,316 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 11:37:27,365 INFO L208 MainTranslator]: Completed translation [2020-10-29 11:37:27,365 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:37:27 WrapperNode [2020-10-29 11:37:27,366 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-29 11:37:27,367 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-29 11:37:27,367 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-29 11:37:27,368 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-29 11:37:27,384 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:37:27" (1/1) ... [2020-10-29 11:37:27,384 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:37:27" (1/1) ... [2020-10-29 11:37:27,403 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:37:27" (1/1) ... [2020-10-29 11:37:27,403 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:37:27" (1/1) ... [2020-10-29 11:37:27,489 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:37:27" (1/1) ... [2020-10-29 11:37:27,512 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:37:27" (1/1) ... [2020-10-29 11:37:27,517 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:37:27" (1/1) ... [2020-10-29 11:37:27,525 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-29 11:37:27,526 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-29 11:37:27,526 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-29 11:37:27,527 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-29 11:37:27,527 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:37:27" (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 [2020-10-29 11:37:27,617 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-29 11:37:27,617 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-29 11:37:27,618 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-29 11:37:27,618 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-29 11:37:27,619 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-29 11:37:27,619 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-29 11:37:27,620 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-29 11:37:27,620 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-29 11:37:27,620 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-29 11:37:27,620 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-29 11:37:27,621 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-29 11:37:27,621 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-29 11:37:27,622 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-29 11:37:27,622 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-29 11:37:27,622 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-29 11:37:27,623 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-29 11:37:27,623 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-29 11:37:27,623 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-29 11:37:27,624 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-10-29 11:37:27,624 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-29 11:37:27,624 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__base [2020-10-29 11:37:27,624 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-29 11:37:27,624 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-29 11:37:27,625 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-29 11:37:27,625 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-29 11:37:27,625 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-29 11:37:27,625 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-10-29 11:37:27,625 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-10-29 11:37:27,625 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-29 11:37:27,626 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-29 11:37:27,626 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-29 11:37:27,626 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-29 11:37:27,626 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-29 11:37:27,626 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-29 11:37:27,626 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-29 11:37:27,627 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-29 11:37:27,627 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-29 11:37:27,627 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-29 11:37:27,627 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-10-29 11:37:27,627 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-29 11:37:27,627 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-29 11:37:27,628 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-29 11:37:27,628 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-29 11:37:27,628 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-29 11:37:27,628 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-29 11:37:27,628 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-29 11:37:27,628 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-29 11:37:27,628 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-29 11:37:27,629 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-29 11:37:27,629 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-29 11:37:27,629 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-29 11:37:27,629 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-29 11:37:27,630 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-29 11:37:27,630 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-29 11:37:27,631 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-29 11:37:27,631 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-29 11:37:27,631 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-29 11:37:27,631 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-29 11:37:27,632 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-29 11:37:27,632 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-29 11:37:27,632 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-29 11:37:27,632 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-29 11:37:27,632 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-29 11:37:27,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-29 11:37:27,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-29 11:37:27,633 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-29 11:37:27,633 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-29 11:37:27,633 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-29 11:37:27,633 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-29 11:37:27,633 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-29 11:37:27,634 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-29 11:37:27,634 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-29 11:37:27,636 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-29 11:37:27,636 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-29 11:37:27,636 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-10-29 11:37:27,637 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-10-29 11:37:27,637 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-29 11:37:27,637 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-29 11:37:27,637 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-29 11:37:27,638 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-29 11:37:27,638 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-29 11:37:27,638 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-29 11:37:27,639 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-10-29 11:37:27,639 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-29 11:37:27,639 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-10-29 11:37:27,639 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-29 11:37:27,640 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__base [2020-10-29 11:37:27,640 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-29 11:37:27,640 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-29 11:37:27,640 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-29 11:37:27,640 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-29 11:37:27,640 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-29 11:37:29,131 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-29 11:37:29,131 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-29 11:37:29,133 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 11:37:29 BoogieIcfgContainer [2020-10-29 11:37:29,134 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-29 11:37:29,135 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-29 11:37:29,136 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-29 11:37:29,139 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-29 11:37:29,140 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 11:37:26" (1/3) ... [2020-10-29 11:37:29,140 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b0224bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 11:37:29, skipping insertion in model container [2020-10-29 11:37:29,141 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:37:27" (2/3) ... [2020-10-29 11:37:29,141 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b0224bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 11:37:29, skipping insertion in model container [2020-10-29 11:37:29,141 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 11:37:29" (3/3) ... [2020-10-29 11:37:29,143 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product16.cil.c [2020-10-29 11:37:29,155 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-29 11:37:29,160 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-29 11:37:29,174 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-29 11:37:29,204 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-29 11:37:29,204 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-29 11:37:29,204 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-29 11:37:29,204 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-29 11:37:29,204 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-29 11:37:29,204 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-29 11:37:29,204 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-29 11:37:29,205 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-29 11:37:29,227 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states. [2020-10-29 11:37:29,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-10-29 11:37:29,238 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 11:37:29,239 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] [2020-10-29 11:37:29,239 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 11:37:29,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 11:37:29,246 INFO L82 PathProgramCache]: Analyzing trace with hash -281142909, now seen corresponding path program 1 times [2020-10-29 11:37:29,256 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 11:37:29,257 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [409452812] [2020-10-29 11:37:29,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 11:37:29,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:37:29,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:37:29,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:37:30,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:37:32,768 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:37:32,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-29 11:37:32,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 11:37:32,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3209 [2020-10-29 11:37:32,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:37:32,772 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:37:32,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-29 11:37:32,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 11:37:32,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-29 11:37:32,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-29 11:37:33,519 WARN L193 SmtUtils]: Spent 646.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-29 11:37:33,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 11:37:33,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:37:33,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:37:33,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:37:33,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:37:33,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:37:33,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 128 [2020-10-29 11:37:33,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:37:33,701 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:37:33,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:37:33,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:37:33,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 11:37:33,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:37:33,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 11:37:33,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:37:33,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:37:33,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:37:33,740 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:37:33,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:37:33,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 11:37:33,741 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:37:33,741 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:37:33,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:37:33,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:37:33,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 11:37:33,742 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:37:33,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-29 11:37:33,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:37:33,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:37:33,749 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:37:33,749 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:37:33,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:37:33,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 11:37:33,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:37:33,750 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:37:33,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:37:33,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:37:33,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 11:37:33,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:37:33,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-29 11:37:33,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:37:33,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:37:33,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:37:33,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:37:33,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:37:33,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 11:37:33,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:37:33,760 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:37:33,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:37:33,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:37:33,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 11:37:33,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:37:33,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-29 11:37:33,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:37:33,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:37:33,767 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:37:33,767 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:37:33,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:37:33,768 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 11:37:33,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:37:33,768 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:37:33,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:37:33,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:37:33,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 11:37:33,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:37:33,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-29 11:37:33,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:37:33,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:37:33,775 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:37:33,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:37:33,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:37:33,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 11:37:33,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:37:33,776 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:37:33,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:37:33,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 11:37:33,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:37:33,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:37:33,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-29 11:37:33,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:37:33,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:37:33,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:37:33,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:37:33,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:37:33,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 11:37:33,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:37:33,784 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:37:33,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:37:33,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 11:37:33,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:37:33,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:37:33,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-29 11:37:33,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:37:33,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:37:33,790 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:37:33,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:37:33,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:37:33,791 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:37:33,791 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:37:33,791 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:37:33,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:37:33,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 11:37:33,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:37:33,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:37:33,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 11:37:33,810 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [409452812] [2020-10-29 11:37:33,812 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 11:37:33,812 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-29 11:37:33,813 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106634195] [2020-10-29 11:37:33,818 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-29 11:37:33,819 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 11:37:33,832 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-29 11:37:33,833 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-29 11:37:33,836 INFO L87 Difference]: Start difference. First operand 170 states. Second operand 4 states. [2020-10-29 11:37:34,595 WARN L193 SmtUtils]: Spent 616.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-29 11:37:38,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 11:37:38,183 INFO L93 Difference]: Finished difference Result 398 states and 533 transitions. [2020-10-29 11:37:38,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 11:37:38,187 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2020-10-29 11:37:38,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 11:37:38,202 INFO L225 Difference]: With dead ends: 398 [2020-10-29 11:37:38,202 INFO L226 Difference]: Without dead ends: 257 [2020-10-29 11:37:38,207 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-29 11:37:38,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2020-10-29 11:37:38,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 197. [2020-10-29 11:37:38,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 197 states. [2020-10-29 11:37:38,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 238 transitions. [2020-10-29 11:37:38,360 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 238 transitions. Word has length 53 [2020-10-29 11:37:38,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 11:37:38,360 INFO L481 AbstractCegarLoop]: Abstraction has 197 states and 238 transitions. [2020-10-29 11:37:38,361 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-29 11:37:38,361 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 238 transitions. [2020-10-29 11:37:38,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-10-29 11:37:38,365 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 11:37:38,366 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] [2020-10-29 11:37:38,366 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-29 11:37:38,366 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 11:37:38,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 11:37:38,367 INFO L82 PathProgramCache]: Analyzing trace with hash 1070199413, now seen corresponding path program 1 times [2020-10-29 11:37:38,367 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 11:37:38,368 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2104656568] [2020-10-29 11:37:38,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 11:37:38,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:37:38,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:37:39,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:37:39,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-29 11:37:39,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:37:39,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1031 [2020-10-29 11:37:39,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:37:39,440 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:37:39,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-29 11:37:39,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 11:37:39,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-29 11:37:39,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:37:40,152 WARN L193 SmtUtils]: Spent 571.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-29 11:37:40,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 11:37:40,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:37:40,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:37:40,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:37:40,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:37:40,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:37:40,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-10-29 11:37:40,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:37:40,278 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:37:40,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:37:40,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:37:40,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 11:37:40,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-29 11:37:40,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 11:37:40,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:37:40,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:37:40,311 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:37:40,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:37:40,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:37:40,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 11:37:40,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:37:40,313 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:37:40,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:37:40,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:37:40,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 11:37:40,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:37:40,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-29 11:37:40,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:37:40,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:37:40,319 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:37:40,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:37:40,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:37:40,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:37:40,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:37:40,320 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:37:40,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:37:40,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:37:40,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 11:37:40,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:37:40,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-29 11:37:40,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:37:40,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:37:40,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:37:40,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:37:40,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:37:40,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 11:37:40,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:37:40,328 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:37:40,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:37:40,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:37:40,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 11:37:40,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:37:40,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-29 11:37:40,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:37:40,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:37:40,345 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:37:40,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:37:40,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:37:40,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:37:40,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:37:40,346 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:37:40,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:37:40,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:37:40,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 11:37:40,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:37:40,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-29 11:37:40,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:37:40,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:37:40,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:37:40,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-29 11:37:40,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:37:40,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 11:37:40,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:37:40,373 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:37:40,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:37:40,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:37:40,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 11:37:40,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:37:40,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 11:37:40,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:37:40,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:37:40,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:37:40,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:37:40,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:37:40,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:37:40,380 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:37:40,380 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:37:40,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:37:40,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:37:40,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:37:40,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:37:40,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-29 11:37:40,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:37:40,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:37:40,388 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:37:40,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:37:40,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:37:40,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 11:37:40,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:37:40,389 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:37:40,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:37:40,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:37:40,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 11:37:40,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:37:40,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-29 11:37:40,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:37:40,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:37:40,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:37:40,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:37:40,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:37:40,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 11:37:40,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:37:40,398 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:37:40,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 11:37:40,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:37:40,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 11:37:40,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:37:40,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-29 11:37:40,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:37:40,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:37:40,423 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:37:40,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:37:40,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:37:40,424 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:37:40,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:37:40,424 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:37:40,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:37:40,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 11:37:40,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:37:40,425 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:37:40,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 11:37:40,442 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2104656568] [2020-10-29 11:37:40,442 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 11:37:40,442 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-29 11:37:40,442 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563597756] [2020-10-29 11:37:40,444 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 11:37:40,444 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 11:37:40,445 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 11:37:40,445 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-29 11:37:40,445 INFO L87 Difference]: Start difference. First operand 197 states and 238 transitions. Second operand 8 states. [2020-10-29 11:37:41,347 WARN L193 SmtUtils]: Spent 597.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-29 11:37:44,268 WARN L193 SmtUtils]: Spent 701.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-29 11:37:45,159 WARN L193 SmtUtils]: Spent 736.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-29 11:37:45,897 WARN L193 SmtUtils]: Spent 677.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-29 11:37:46,656 WARN L193 SmtUtils]: Spent 666.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-29 11:37:47,551 WARN L193 SmtUtils]: Spent 689.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-29 11:37:49,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 11:37:49,850 INFO L93 Difference]: Finished difference Result 680 states and 959 transitions. [2020-10-29 11:37:49,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-29 11:37:49,852 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 67 [2020-10-29 11:37:49,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 11:37:49,861 INFO L225 Difference]: With dead ends: 680 [2020-10-29 11:37:49,861 INFO L226 Difference]: Without dead ends: 507 [2020-10-29 11:37:49,865 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2020-10-29 11:37:49,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 507 states. [2020-10-29 11:37:50,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 507 to 368. [2020-10-29 11:37:50,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 368 states. [2020-10-29 11:37:50,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 368 states to 368 states and 464 transitions. [2020-10-29 11:37:50,055 INFO L78 Accepts]: Start accepts. Automaton has 368 states and 464 transitions. Word has length 67 [2020-10-29 11:37:50,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 11:37:50,056 INFO L481 AbstractCegarLoop]: Abstraction has 368 states and 464 transitions. [2020-10-29 11:37:50,056 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 11:37:50,056 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 464 transitions. [2020-10-29 11:37:50,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-10-29 11:37:50,062 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 11:37:50,062 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] [2020-10-29 11:37:50,063 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-29 11:37:50,063 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 11:37:50,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 11:37:50,064 INFO L82 PathProgramCache]: Analyzing trace with hash -1717293073, now seen corresponding path program 1 times [2020-10-29 11:37:50,064 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 11:37:50,064 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1632738471] [2020-10-29 11:37:50,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 11:37:50,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:37:50,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:37:50,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:37:50,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:37:52,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:37:55,133 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:37:55,134 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 109 [2020-10-29 11:37:55,134 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 11:37:55,134 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5033 [2020-10-29 11:37:55,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:37:55,135 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:37:55,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-29 11:37:55,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 11:37:55,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-29 11:37:55,135 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:37:55,860 WARN L193 SmtUtils]: Spent 602.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-29 11:37:55,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 11:37:55,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:37:55,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:37:55,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:37:55,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:37:55,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:37:55,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-10-29 11:37:55,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:37:55,968 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:37:55,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:37:55,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:37:55,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 11:37:55,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:37:55,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 11:37:55,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:37:55,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:37:55,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:37:55,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:37:55,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:37:55,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:37:55,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:37:55,990 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:37:55,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:37:55,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:37:55,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 11:37:55,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-29 11:37:55,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-29 11:37:55,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:37:55,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:37:55,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:37:55,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:37:55,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:37:55,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:37:55,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:37:55,999 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:37:55,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:37:55,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:37:56,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 11:37:56,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:37:56,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-29 11:37:56,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:37:56,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:37:56,006 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:37:56,006 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:37:56,006 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:37:56,006 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 11:37:56,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:37:56,007 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:37:56,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:37:56,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:37:56,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 11:37:56,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:37:56,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-29 11:37:56,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:37:56,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:37:56,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:37:56,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:37:56,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:37:56,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:37:56,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:37:56,014 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:37:56,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:37:56,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:37:56,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 11:37:56,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:37:56,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-29 11:37:56,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:37:56,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:37:56,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:37:56,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:37:56,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:37:56,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-29 11:37:56,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:37:56,051 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:37:56,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 11:37:56,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 11:37:56,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 11:37:56,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:37:56,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-29 11:37:56,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:37:56,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:37:56,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:37:56,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-29 11:37:56,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:37:56,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 11:37:56,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:37:56,107 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:37:56,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:37:56,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:37:56,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 11:37:56,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:37:56,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 11:37:56,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:37:56,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:37:56,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:37:56,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:37:56,112 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:37:56,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:37:56,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:37:56,113 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:37:56,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:37:56,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:37:56,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:37:56,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:37:56,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-29 11:37:56,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:37:56,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:37:56,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:37:56,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:37:56,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:37:56,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 11:37:56,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:37:56,121 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:37:56,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:37:56,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:37:56,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 11:37:56,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:37:56,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-29 11:37:56,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:37:56,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:37:56,130 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:37:56,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:37:56,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:37:56,130 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 11:37:56,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:37:56,131 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:37:56,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 11:37:56,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:37:56,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 11:37:56,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:37:56,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-29 11:37:56,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:37:56,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:37:56,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:37:56,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:37:56,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:37:56,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:37:56,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:37:56,158 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:37:56,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:37:56,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 11:37:56,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:37:56,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:37:56,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 11:37:56,176 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1632738471] [2020-10-29 11:37:56,176 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 11:37:56,176 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-29 11:37:56,177 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809400241] [2020-10-29 11:37:56,177 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-29 11:37:56,177 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 11:37:56,178 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-29 11:37:56,179 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-10-29 11:37:56,179 INFO L87 Difference]: Start difference. First operand 368 states and 464 transitions. Second operand 11 states. [2020-10-29 11:37:57,106 WARN L193 SmtUtils]: Spent 674.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-29 11:37:58,893 WARN L193 SmtUtils]: Spent 639.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-29 11:38:00,728 WARN L193 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 211 DAG size of output: 208 [2020-10-29 11:38:02,706 WARN L193 SmtUtils]: Spent 693.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-29 11:38:03,753 WARN L193 SmtUtils]: Spent 698.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-29 11:38:04,623 WARN L193 SmtUtils]: Spent 735.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-29 11:38:05,422 WARN L193 SmtUtils]: Spent 679.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-29 11:38:06,232 WARN L193 SmtUtils]: Spent 692.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-29 11:38:07,270 WARN L193 SmtUtils]: Spent 704.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-29 11:38:08,090 WARN L193 SmtUtils]: Spent 692.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-29 11:38:09,611 WARN L193 SmtUtils]: Spent 1.43 s on a formula simplification. DAG size of input: 213 DAG size of output: 210 [2020-10-29 11:38:10,330 WARN L193 SmtUtils]: Spent 678.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-29 11:38:12,053 WARN L193 SmtUtils]: Spent 1.42 s on a formula simplification. DAG size of input: 214 DAG size of output: 211 [2020-10-29 11:38:13,668 WARN L193 SmtUtils]: Spent 1.41 s on a formula simplification. DAG size of input: 214 DAG size of output: 211 [2020-10-29 11:38:15,139 WARN L193 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 208 DAG size of output: 205 [2020-10-29 11:38:22,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 11:38:22,101 INFO L93 Difference]: Finished difference Result 1197 states and 1926 transitions. [2020-10-29 11:38:22,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2020-10-29 11:38:22,102 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 71 [2020-10-29 11:38:22,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 11:38:22,115 INFO L225 Difference]: With dead ends: 1197 [2020-10-29 11:38:22,115 INFO L226 Difference]: Without dead ends: 1002 [2020-10-29 11:38:22,126 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 295 ImplicationChecksByTransitivity, 15.2s TimeCoverageRelationStatistics Valid=299, Invalid=961, Unknown=0, NotChecked=0, Total=1260 [2020-10-29 11:38:22,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1002 states. [2020-10-29 11:38:22,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1002 to 645. [2020-10-29 11:38:22,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 645 states. [2020-10-29 11:38:22,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 645 states to 645 states and 823 transitions. [2020-10-29 11:38:22,379 INFO L78 Accepts]: Start accepts. Automaton has 645 states and 823 transitions. Word has length 71 [2020-10-29 11:38:22,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 11:38:22,380 INFO L481 AbstractCegarLoop]: Abstraction has 645 states and 823 transitions. [2020-10-29 11:38:22,380 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-29 11:38:22,380 INFO L276 IsEmpty]: Start isEmpty. Operand 645 states and 823 transitions. [2020-10-29 11:38:22,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-10-29 11:38:22,385 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 11:38:22,386 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 11:38:22,386 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-29 11:38:22,386 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 11:38:22,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 11:38:22,387 INFO L82 PathProgramCache]: Analyzing trace with hash -1187089995, now seen corresponding path program 1 times [2020-10-29 11:38:22,387 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 11:38:22,387 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [446895998] [2020-10-29 11:38:22,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 11:38:22,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-29 11:38:22,433 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-29 11:38:22,433 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-29 11:38:22,438 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-29 11:38:22,459 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 11:38:22 BoogieIcfgContainer [2020-10-29 11:38:22,459 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-29 11:38:22,461 INFO L168 Benchmark]: Toolchain (without parser) took 55677.09 ms. Allocated memory was 168.8 MB in the beginning and 465.6 MB in the end (delta: 296.7 MB). Free memory was 142.9 MB in the beginning and 403.5 MB in the end (delta: -260.6 MB). Peak memory consumption was 37.5 MB. Max. memory is 8.0 GB. [2020-10-29 11:38:22,462 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 125.8 MB. Free memory is still 99.0 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-29 11:38:22,463 INFO L168 Benchmark]: CACSL2BoogieTranslator took 574.92 ms. Allocated memory is still 168.8 MB. Free memory was 142.4 MB in the beginning and 121.9 MB in the end (delta: 20.5 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. [2020-10-29 11:38:22,464 INFO L168 Benchmark]: Boogie Preprocessor took 158.30 ms. Allocated memory is still 168.8 MB. Free memory was 121.9 MB in the beginning and 150.0 MB in the end (delta: -28.1 MB). Peak memory consumption was 6.5 MB. Max. memory is 8.0 GB. [2020-10-29 11:38:22,464 INFO L168 Benchmark]: RCFGBuilder took 1607.46 ms. Allocated memory is still 168.8 MB. Free memory was 150.0 MB in the beginning and 104.1 MB in the end (delta: 45.9 MB). Peak memory consumption was 48.3 MB. Max. memory is 8.0 GB. [2020-10-29 11:38:22,465 INFO L168 Benchmark]: TraceAbstraction took 53324.07 ms. Allocated memory was 168.8 MB in the beginning and 465.6 MB in the end (delta: 296.7 MB). Free memory was 103.5 MB in the beginning and 403.5 MB in the end (delta: -300.0 MB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-29 11:38:22,468 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 125.8 MB. Free memory is still 99.0 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 574.92 ms. Allocated memory is still 168.8 MB. Free memory was 142.4 MB in the beginning and 121.9 MB in the end (delta: 20.5 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 158.30 ms. Allocated memory is still 168.8 MB. Free memory was 121.9 MB in the beginning and 150.0 MB in the end (delta: -28.1 MB). Peak memory consumption was 6.5 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1607.46 ms. Allocated memory is still 168.8 MB. Free memory was 150.0 MB in the beginning and 104.1 MB in the end (delta: 45.9 MB). Peak memory consumption was 48.3 MB. Max. memory is 8.0 GB. * TraceAbstraction took 53324.07 ms. Allocated memory was 168.8 MB in the beginning and 465.6 MB in the end (delta: 296.7 MB). Free memory was 103.5 MB in the beginning and 403.5 MB in the end (delta: -300.0 MB). There was no memory consumed. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L51] int cleanupTimeShifts = 4; [L324] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L598] int pumpRunning = 0; [L599] int systemActive = 1; [L808] int waterLevel = 1; [L809] int methaneLevelCritical = 0; [L132] int retValue_acc ; [L133] int tmp ; [L137] FCALL select_helpers() [L138] FCALL select_features() [L139] CALL, EXPR valid_product() [L798] int retValue_acc ; [L801] retValue_acc = 1 [L802] return (retValue_acc); [L139] RET, EXPR valid_product() [L139] tmp = valid_product() [L141] COND TRUE \read(tmp) [L143] FCALL setup() [L144] CALL runTest() [L123] CALL test() [L524] int splverifierCounter ; [L525] int tmp ; [L526] int tmp___0 ; [L527] int tmp___1 ; [L528] int tmp___2 ; [L531] splverifierCounter = 0 [L533] COND TRUE 1 [L535] COND TRUE splverifierCounter < 4 [L541] tmp = __VERIFIER_nondet_int() [L543] COND TRUE \read(tmp) [L545] CALL waterRise() [L826] COND TRUE waterLevel < 2 [L827] waterLevel = waterLevel + 1 [L545] RET waterRise() [L551] tmp___0 = __VERIFIER_nondet_int() [L553] COND FALSE !(\read(tmp___0)) [L561] tmp___2 = __VERIFIER_nondet_int() [L563] COND FALSE !(\read(tmp___2)) [L569] tmp___1 = __VERIFIER_nondet_int() [L571] COND TRUE \read(tmp___1) [L573] CALL stopSystem() [L752] COND FALSE !(\read(pumpRunning)) [L759] systemActive = 0 [L573] RET stopSystem() [L580] CALL timeShift() [L606] COND FALSE !(\read(pumpRunning)) [L613] COND FALSE !(\read(systemActive)) [L621] CALL __utac_acc__Specification3_spec__1() [L889] int tmp ; [L890] int tmp___0 ; [L891] int tmp___1 ; [L895] CALL, EXPR isMethaneLevelCritical() [L847] int retValue_acc ; [L850] retValue_acc = methaneLevelCritical [L851] return (retValue_acc); [L895] RET, EXPR isMethaneLevelCritical() [L895] tmp = isMethaneLevelCritical() [L897] COND FALSE !(\read(tmp)) [L901] CALL, EXPR getWaterLevel() [L879] int retValue_acc ; [L882] retValue_acc = waterLevel [L883] return (retValue_acc); [L901] RET, EXPR getWaterLevel() [L901] tmp___0 = getWaterLevel() [L903] COND TRUE tmp___0 == 2 [L905] CALL, EXPR isPumpRunning() [L704] int retValue_acc ; [L707] retValue_acc = pumpRunning [L708] return (retValue_acc); [L905] RET, EXPR isPumpRunning() [L905] tmp___1 = isPumpRunning() [L907] COND FALSE !(\read(tmp___1)) [L911] CALL __automaton_fail() [L46] CALL reach_error() [L3] __assert_fail("0", "minepump_spec3_product16.cil.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 39 procedures, 236 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 53.2s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 39.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 436 SDtfs, 1053 SDslu, 632 SDs, 0 SdLazy, 3175 SolverSat, 920 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 17.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 121 GetRequests, 70 SyntacticMatches, 1 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 314 ImplicationChecksByTransitivity, 21.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=645occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 3 MinimizatonAttempts, 556 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 12.3s InterpolantComputationTime, 259 NumberOfCodeBlocks, 259 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 188 ConstructedInterpolants, 0 QuantifiedInterpolants, 63880 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...