/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product08.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 02:58:18,872 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 02:58:18,876 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 02:58:18,904 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 02:58:18,904 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 02:58:18,906 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 02:58:18,907 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 02:58:18,909 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 02:58:18,911 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 02:58:18,913 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 02:58:18,914 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 02:58:18,915 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 02:58:18,916 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 02:58:18,917 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 02:58:18,921 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 02:58:18,923 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 02:58:18,924 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 02:58:18,928 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 02:58:18,930 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 02:58:18,935 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 02:58:18,939 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 02:58:18,940 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 02:58:18,944 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 02:58:18,945 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 02:58:18,948 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 02:58:18,948 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 02:58:18,948 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 02:58:18,952 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 02:58:18,953 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 02:58:18,955 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 02:58:18,955 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 02:58:18,956 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 02:58:18,957 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 02:58:18,958 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 02:58:18,959 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 02:58:18,959 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 02:58:18,960 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 02:58:18,960 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 02:58:18,961 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 02:58:18,962 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 02:58:18,963 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 02:58:18,964 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 02:58:19,022 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 02:58:19,026 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 02:58:19,027 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 02:58:19,027 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 02:58:19,031 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 02:58:19,031 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 02:58:19,031 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 02:58:19,032 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 02:58:19,032 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 02:58:19,032 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 02:58:19,032 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 02:58:19,032 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 02:58:19,032 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 02:58:19,033 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 02:58:19,033 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 02:58:19,033 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 02:58:19,033 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 02:58:19,033 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 02:58:19,033 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 02:58:19,034 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 02:58:19,034 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 02:58:19,034 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 02:58:19,034 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 02:58:19,034 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 02:58:19,035 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 02:58:19,035 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 02:58:19,035 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 02:58:19,035 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 02:58:19,036 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 02:58:19,036 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDEST;log-additional-information=true; [2020-09-25 02:58:19,511 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 02:58:19,526 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 02:58:19,532 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 02:58:19,534 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 02:58:19,536 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 02:58:19,537 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product08.cil.c [2020-09-25 02:58:19,624 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/010c7d0c0/2e2b3d1d67eb4648911c6b701dbdb014/FLAG1e9ef115c [2020-09-25 02:58:20,191 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 02:58:20,192 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product08.cil.c [2020-09-25 02:58:20,207 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/010c7d0c0/2e2b3d1d67eb4648911c6b701dbdb014/FLAG1e9ef115c [2020-09-25 02:58:20,483 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/010c7d0c0/2e2b3d1d67eb4648911c6b701dbdb014 [2020-09-25 02:58:20,498 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 02:58:20,504 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 02:58:20,505 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 02:58:20,505 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 02:58:20,509 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 02:58:20,511 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:58:20" (1/1) ... [2020-09-25 02:58:20,515 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4428e4e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:58:20, skipping insertion in model container [2020-09-25 02:58:20,516 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:58:20" (1/1) ... [2020-09-25 02:58:20,525 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 02:58:20,586 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 02:58:20,996 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 02:58:21,017 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 02:58:21,187 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 02:58:21,230 INFO L208 MainTranslator]: Completed translation [2020-09-25 02:58:21,231 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:58:21 WrapperNode [2020-09-25 02:58:21,231 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 02:58:21,232 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 02:58:21,232 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 02:58:21,232 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 02:58:21,247 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:58:21" (1/1) ... [2020-09-25 02:58:21,247 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:58:21" (1/1) ... [2020-09-25 02:58:21,268 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:58:21" (1/1) ... [2020-09-25 02:58:21,269 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:58:21" (1/1) ... [2020-09-25 02:58:21,298 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:58:21" (1/1) ... [2020-09-25 02:58:21,311 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:58:21" (1/1) ... [2020-09-25 02:58:21,317 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:58:21" (1/1) ... [2020-09-25 02:58:21,325 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 02:58:21,326 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 02:58:21,326 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 02:58:21,326 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 02:58:21,328 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:58:21" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 02:58:21,418 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 02:58:21,419 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 02:58:21,419 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 02:58:21,419 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-25 02:58:21,419 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 02:58:21,420 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 02:58:21,420 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 02:58:21,420 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 02:58:21,420 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 02:58:21,420 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 02:58:21,421 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 02:58:21,421 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 02:58:21,421 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 02:58:21,421 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 02:58:21,421 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 02:58:21,422 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 02:58:21,422 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 02:58:21,422 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 02:58:21,422 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 02:58:21,423 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 02:58:21,423 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 02:58:21,423 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 02:58:21,423 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 02:58:21,423 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 02:58:21,423 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 02:58:21,424 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 02:58:21,424 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 02:58:21,424 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 02:58:21,424 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 02:58:21,424 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 02:58:21,425 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 02:58:21,425 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 02:58:21,425 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 02:58:21,425 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 02:58:21,425 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 02:58:21,425 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 02:58:21,426 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 02:58:21,426 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 02:58:21,426 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 02:58:21,426 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 02:58:21,426 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 02:58:21,426 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 02:58:21,426 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 02:58:21,427 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 02:58:21,427 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-25 02:58:21,427 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 02:58:21,427 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 02:58:21,427 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 02:58:21,427 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 02:58:21,428 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 02:58:21,428 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 02:58:21,428 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 02:58:21,428 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 02:58:21,428 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 02:58:21,428 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 02:58:21,429 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 02:58:21,429 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 02:58:21,429 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 02:58:21,429 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 02:58:21,429 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 02:58:21,429 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 02:58:21,430 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 02:58:21,430 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 02:58:21,430 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 02:58:21,430 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 02:58:21,430 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 02:58:21,430 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 02:58:21,430 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 02:58:21,431 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 02:58:21,431 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 02:58:21,431 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 02:58:21,431 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 02:58:21,431 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 02:58:21,431 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 02:58:21,432 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 02:58:21,432 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 02:58:21,432 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 02:58:21,432 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 02:58:21,432 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 02:58:21,432 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 02:58:21,433 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 02:58:21,433 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 02:58:21,433 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 02:58:21,433 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 02:58:21,433 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 02:58:21,433 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 02:58:21,434 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 02:58:21,434 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 02:58:22,556 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 02:58:22,557 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 02:58:22,564 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:58:22 BoogieIcfgContainer [2020-09-25 02:58:22,564 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 02:58:22,566 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 02:58:22,566 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 02:58:22,570 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 02:58:22,570 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 02:58:20" (1/3) ... [2020-09-25 02:58:22,571 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@df7a7cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:58:22, skipping insertion in model container [2020-09-25 02:58:22,572 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:58:21" (2/3) ... [2020-09-25 02:58:22,572 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@df7a7cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:58:22, skipping insertion in model container [2020-09-25 02:58:22,572 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:58:22" (3/3) ... [2020-09-25 02:58:22,575 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product08.cil.c [2020-09-25 02:58:22,586 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 02:58:22,598 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 02:58:22,620 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 02:58:22,653 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 02:58:22,653 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 02:58:22,653 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 02:58:22,653 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 02:58:22,654 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 02:58:22,654 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 02:58:22,654 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 02:58:22,654 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 02:58:22,679 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states. [2020-09-25 02:58:22,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-25 02:58:22,696 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:58:22,698 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 02:58:22,698 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:58:22,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:58:22,705 INFO L82 PathProgramCache]: Analyzing trace with hash -1628156155, now seen corresponding path program 1 times [2020-09-25 02:58:22,716 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:58:22,716 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1113769332] [2020-09-25 02:58:22,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:58:23,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:23,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:23,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:25,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:28,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:28,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-25 02:58:28,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 02:58:28,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5052 [2020-09-25 02:58:28,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:28,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 02:58:28,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-25 02:58:28,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 92 [2020-09-25 02:58:28,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-25 02:58:28,947 WARN L193 SmtUtils]: Spent 405.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 02:58:28,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:58:29,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:29,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:29,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:29,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 02:58:29,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:29,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 329 [2020-09-25 02:58:29,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:29,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:58:29,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:58:29,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-25 02:58:29,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:58:29,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 02:58:29,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:29,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:29,470 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:29,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:58:29,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:29,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 02:58:29,471 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:29,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:58:29,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:58:29,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:58:29,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:58:29,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 02:58:29,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:29,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:29,480 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:29,480 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:58:29,480 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:29,481 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 02:58:29,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:29,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:58:29,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:58:29,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:58:29,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:58:29,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 02:58:29,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:29,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:29,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:29,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:58:29,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:29,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 02:58:29,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:29,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:58:29,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:58:29,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:58:29,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:58:29,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 02:58:29,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:29,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:29,509 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:29,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:58:29,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:29,510 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 02:58:29,510 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:29,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:58:29,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:58:29,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:58:29,511 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:58:29,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 02:58:29,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:29,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:29,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:29,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:58:29,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:29,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 02:58:29,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:29,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:58:29,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:58:29,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:58:29,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:58:29,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 02:58:29,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:29,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:29,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:29,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:58:29,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:29,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 02:58:29,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:29,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 02:58:29,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:58:29,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:58:29,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:58:29,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-25 02:58:29,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:29,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:29,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:29,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:58:29,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:29,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:58:29,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:29,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:58:29,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 02:58:29,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:58:29,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:58:29,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 02:58:29,644 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1113769332] [2020-09-25 02:58:29,646 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 02:58:29,647 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 02:58:29,648 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767471141] [2020-09-25 02:58:29,657 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 02:58:29,657 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:58:29,675 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 02:58:29,677 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-25 02:58:29,680 INFO L87 Difference]: Start difference. First operand 285 states. Second operand 8 states. [2020-09-25 02:58:30,277 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 02:58:31,913 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 02:58:32,313 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 02:58:32,713 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 02:58:33,112 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 02:58:33,453 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 02:58:33,797 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 02:58:34,131 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 02:58:35,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:58:35,232 INFO L93 Difference]: Finished difference Result 571 states and 710 transitions. [2020-09-25 02:58:35,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 02:58:35,234 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 153 [2020-09-25 02:58:35,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:58:35,257 INFO L225 Difference]: With dead ends: 571 [2020-09-25 02:58:35,257 INFO L226 Difference]: Without dead ends: 397 [2020-09-25 02:58:35,264 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-09-25 02:58:35,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397 states. [2020-09-25 02:58:35,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 350. [2020-09-25 02:58:35,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 350 states. [2020-09-25 02:58:35,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 398 transitions. [2020-09-25 02:58:35,399 INFO L78 Accepts]: Start accepts. Automaton has 350 states and 398 transitions. Word has length 153 [2020-09-25 02:58:35,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:58:35,401 INFO L479 AbstractCegarLoop]: Abstraction has 350 states and 398 transitions. [2020-09-25 02:58:35,401 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 02:58:35,401 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states and 398 transitions. [2020-09-25 02:58:35,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2020-09-25 02:58:35,408 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:58:35,408 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 02:58:35,409 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 02:58:35,409 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:58:35,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:58:35,409 INFO L82 PathProgramCache]: Analyzing trace with hash 135119293, now seen corresponding path program 1 times [2020-09-25 02:58:35,410 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:58:35,410 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1882074293] [2020-09-25 02:58:35,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:58:35,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:35,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:35,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:35,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:40,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:40,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 194 [2020-09-25 02:58:40,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 02:58:40,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5016 [2020-09-25 02:58:40,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:40,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 02:58:40,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-25 02:58:40,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-09-25 02:58:40,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:58:40,841 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 02:58:40,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:58:40,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:40,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:41,125 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:41,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 02:58:41,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:41,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 247 [2020-09-25 02:58:41,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:41,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:58:41,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:58:41,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 02:58:41,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:58:41,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 02:58:41,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:41,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:41,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:41,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:58:41,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:41,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 02:58:41,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:41,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:58:41,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:58:41,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:58:41,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:58:41,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 02:58:41,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:41,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:41,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:41,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:58:41,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:41,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 02:58:41,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:41,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:58:41,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:58:41,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:58:41,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:58:41,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 02:58:41,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:41,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:41,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:41,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:58:41,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:41,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 02:58:41,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:41,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:58:41,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:58:41,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:58:41,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:58:41,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 02:58:41,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:41,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:41,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:41,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:58:41,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:41,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 02:58:41,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:41,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:58:41,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:58:41,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:58:41,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:58:41,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-09-25 02:58:41,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:41,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:41,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:41,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 02:58:41,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:41,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 02:58:41,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:41,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:58:41,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:58:41,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 02:58:41,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:58:41,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-25 02:58:41,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:41,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:41,266 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:41,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:58:41,266 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:41,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:58:41,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:41,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:58:41,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 02:58:41,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:58:41,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:58:41,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-25 02:58:41,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:41,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:41,274 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:41,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:58:41,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:41,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:58:41,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:41,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:58:41,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 02:58:41,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:58:41,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:58:41,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-25 02:58:41,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:41,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:41,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:41,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:58:41,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:41,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:58:41,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:41,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:58:41,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 02:58:41,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:58:41,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:58:41,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 02:58:41,337 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1882074293] [2020-09-25 02:58:41,337 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 02:58:41,338 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 02:58:41,338 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135802322] [2020-09-25 02:58:41,341 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 02:58:41,341 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:58:41,341 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 02:58:41,342 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 02:58:41,342 INFO L87 Difference]: Start difference. First operand 350 states and 398 transitions. Second operand 6 states. [2020-09-25 02:58:41,849 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 02:58:42,759 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 02:58:45,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:58:45,505 INFO L93 Difference]: Finished difference Result 1093 states and 1384 transitions. [2020-09-25 02:58:45,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 02:58:45,506 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 159 [2020-09-25 02:58:45,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:58:45,518 INFO L225 Difference]: With dead ends: 1093 [2020-09-25 02:58:45,519 INFO L226 Difference]: Without dead ends: 853 [2020-09-25 02:58:45,524 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2020-09-25 02:58:45,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 853 states. [2020-09-25 02:58:45,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 853 to 743. [2020-09-25 02:58:45,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 743 states. [2020-09-25 02:58:45,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 743 states to 743 states and 885 transitions. [2020-09-25 02:58:45,663 INFO L78 Accepts]: Start accepts. Automaton has 743 states and 885 transitions. Word has length 159 [2020-09-25 02:58:45,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:58:45,664 INFO L479 AbstractCegarLoop]: Abstraction has 743 states and 885 transitions. [2020-09-25 02:58:45,664 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 02:58:45,664 INFO L276 IsEmpty]: Start isEmpty. Operand 743 states and 885 transitions. [2020-09-25 02:58:45,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-09-25 02:58:45,669 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:58:45,670 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 02:58:45,670 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 02:58:45,670 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:58:45,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:58:45,671 INFO L82 PathProgramCache]: Analyzing trace with hash -1646692452, now seen corresponding path program 1 times [2020-09-25 02:58:45,671 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:58:45,671 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [643112110] [2020-09-25 02:58:45,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:58:45,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:45,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:45,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:46,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:50,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:50,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 206 [2020-09-25 02:58:50,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 02:58:50,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-09-25 02:58:50,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:50,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 02:58:50,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-25 02:58:50,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-25 02:58:50,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:58:51,009 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 02:58:51,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:58:51,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:51,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:51,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:51,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 02:58:51,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:51,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 229 [2020-09-25 02:58:51,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:51,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:58:51,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:58:51,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 02:58:51,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:58:51,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 02:58:51,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:51,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:51,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:51,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:58:51,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:51,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 02:58:51,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:51,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:58:51,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:58:51,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:58:51,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 02:58:51,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 02:58:51,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:51,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:51,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:51,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:58:51,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:51,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:58:51,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:51,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:58:51,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:58:51,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:58:51,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:58:51,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 02:58:51,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:51,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:51,381 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:51,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:58:51,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:51,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 02:58:51,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:51,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:58:51,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:58:51,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:58:51,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:58:51,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 02:58:51,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:51,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:51,390 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:51,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:58:51,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:51,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 02:58:51,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:51,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:58:51,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:58:51,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:58:51,396 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:58:51,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-09-25 02:58:51,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:51,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:51,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:51,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 02:58:51,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:51,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 02:58:51,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:51,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:58:51,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 02:58:51,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:58:51,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:58:51,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-09-25 02:58:51,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:51,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:51,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:51,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 02:58:51,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:51,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:58:51,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:51,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:58:51,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-25 02:58:51,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:58:51,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:58:51,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:58:51,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:51,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:51,437 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:51,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:58:51,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:51,438 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 02:58:51,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:51,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:58:51,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:58:51,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:58:51,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:58:51,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 02:58:51,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:51,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:51,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:51,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:58:51,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:51,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:58:51,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:51,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:58:51,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 02:58:51,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:58:51,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:58:51,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-09-25 02:58:51,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:51,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:51,450 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:51,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:58:51,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:51,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:58:51,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:51,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:58:51,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 02:58:51,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:58:51,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:58:51,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-09-25 02:58:51,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:51,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:51,457 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:51,457 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:58:51,457 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:51,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:58:51,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:51,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:58:51,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 02:58:51,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:58:51,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:58:51,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 02:58:51,487 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [643112110] [2020-09-25 02:58:51,487 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 02:58:51,488 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 02:58:51,488 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825530705] [2020-09-25 02:58:51,489 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 02:58:51,490 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:58:51,490 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 02:58:51,490 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 02:58:51,490 INFO L87 Difference]: Start difference. First operand 743 states and 885 transitions. Second operand 6 states. [2020-09-25 02:58:51,964 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 02:58:52,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:58:52,849 INFO L93 Difference]: Finished difference Result 1275 states and 1578 transitions. [2020-09-25 02:58:52,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 02:58:52,849 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 167 [2020-09-25 02:58:52,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:58:52,854 INFO L225 Difference]: With dead ends: 1275 [2020-09-25 02:58:52,855 INFO L226 Difference]: Without dead ends: 611 [2020-09-25 02:58:52,858 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2020-09-25 02:58:52,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 611 states. [2020-09-25 02:58:52,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 611 to 580. [2020-09-25 02:58:52,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 580 states. [2020-09-25 02:58:52,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 580 states to 580 states and 642 transitions. [2020-09-25 02:58:52,940 INFO L78 Accepts]: Start accepts. Automaton has 580 states and 642 transitions. Word has length 167 [2020-09-25 02:58:52,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:58:52,941 INFO L479 AbstractCegarLoop]: Abstraction has 580 states and 642 transitions. [2020-09-25 02:58:52,941 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 02:58:52,941 INFO L276 IsEmpty]: Start isEmpty. Operand 580 states and 642 transitions. [2020-09-25 02:58:52,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-09-25 02:58:52,945 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:58:52,945 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 02:58:52,945 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 02:58:52,945 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:58:52,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:58:52,946 INFO L82 PathProgramCache]: Analyzing trace with hash -1990325339, now seen corresponding path program 1 times [2020-09-25 02:58:52,946 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:58:52,946 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [52442297] [2020-09-25 02:58:52,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:58:53,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 02:58:53,012 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 02:58:53,013 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 02:58:53,019 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 02:58:53,052 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 02:58:53 BoogieIcfgContainer [2020-09-25 02:58:53,052 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 02:58:53,054 INFO L168 Benchmark]: Toolchain (without parser) took 32554.67 ms. Allocated memory was 139.5 MB in the beginning and 594.0 MB in the end (delta: 454.6 MB). Free memory was 101.9 MB in the beginning and 415.1 MB in the end (delta: -313.2 MB). Peak memory consumption was 141.4 MB. Max. memory is 7.1 GB. [2020-09-25 02:58:53,055 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 02:58:53,056 INFO L168 Benchmark]: CACSL2BoogieTranslator took 726.40 ms. Allocated memory was 139.5 MB in the beginning and 203.4 MB in the end (delta: 64.0 MB). Free memory was 101.3 MB in the beginning and 173.2 MB in the end (delta: -71.9 MB). Peak memory consumption was 28.0 MB. Max. memory is 7.1 GB. [2020-09-25 02:58:53,057 INFO L168 Benchmark]: Boogie Preprocessor took 93.50 ms. Allocated memory is still 203.4 MB. Free memory was 173.2 MB in the beginning and 169.7 MB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 7.1 GB. [2020-09-25 02:58:53,058 INFO L168 Benchmark]: RCFGBuilder took 1238.75 ms. Allocated memory was 203.4 MB in the beginning and 236.5 MB in the end (delta: 33.0 MB). Free memory was 169.0 MB in the beginning and 182.0 MB in the end (delta: -13.0 MB). Peak memory consumption was 85.6 MB. Max. memory is 7.1 GB. [2020-09-25 02:58:53,059 INFO L168 Benchmark]: TraceAbstraction took 30486.30 ms. Allocated memory was 236.5 MB in the beginning and 594.0 MB in the end (delta: 357.6 MB). Free memory was 182.0 MB in the beginning and 415.1 MB in the end (delta: -233.1 MB). Peak memory consumption was 124.5 MB. Max. memory is 7.1 GB. [2020-09-25 02:58:53,063 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 726.40 ms. Allocated memory was 139.5 MB in the beginning and 203.4 MB in the end (delta: 64.0 MB). Free memory was 101.3 MB in the beginning and 173.2 MB in the end (delta: -71.9 MB). Peak memory consumption was 28.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 93.50 ms. Allocated memory is still 203.4 MB. Free memory was 173.2 MB in the beginning and 169.7 MB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1238.75 ms. Allocated memory was 203.4 MB in the beginning and 236.5 MB in the end (delta: 33.0 MB). Free memory was 169.0 MB in the beginning and 182.0 MB in the end (delta: -13.0 MB). Peak memory consumption was 85.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 30486.30 ms. Allocated memory was 236.5 MB in the beginning and 594.0 MB in the end (delta: 357.6 MB). Free memory was 182.0 MB in the beginning and 415.1 MB in the end (delta: -233.1 MB). Peak memory consumption was 124.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 532]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L247] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L448] int waterLevel = 1; [L449] int methaneLevelCritical = 0; [L613] int pumpRunning = 0; [L614] int systemActive = 1; [L807] int cleanupTimeShifts = 4; [L880] int retValue_acc ; [L881] int tmp ; [L885] FCALL select_helpers() [L886] FCALL select_features() [L887] CALL, EXPR valid_product() [L798] int retValue_acc ; [L801] retValue_acc = 1 [L802] return (retValue_acc); [L887] RET, EXPR valid_product() [L887] tmp = valid_product() [L889] COND TRUE \read(tmp) [L891] FCALL setup() [L892] CALL runTest() [L874] CALL test() [L542] int splverifierCounter ; [L543] int tmp ; [L544] int tmp___0 ; [L545] int tmp___1 ; [L546] int tmp___2 ; [L549] splverifierCounter = 0 [L551] COND TRUE 1 [L553] COND TRUE splverifierCounter < 4 [L559] tmp = __VERIFIER_nondet_int() [L561] COND TRUE \read(tmp) [L563] CALL waterRise() [L466] COND TRUE waterLevel < 2 [L467] waterLevel = waterLevel + 1 [L563] RET waterRise() [L569] tmp___0 = __VERIFIER_nondet_int() [L571] COND FALSE !(\read(tmp___0)) [L579] tmp___2 = __VERIFIER_nondet_int() [L581] COND FALSE !(\read(tmp___2)) [L587] tmp___1 = __VERIFIER_nondet_int() [L589] COND TRUE \read(tmp___1) [L591] CALL stopSystem() [L749] COND FALSE !(\read(pumpRunning)) [L756] systemActive = 0 [L591] RET stopSystem() [L598] CALL timeShift() [L620] COND FALSE !(\read(pumpRunning)) [L627] COND FALSE !(\read(systemActive)) [L635] CALL __utac_acc__Specification3_spec__1() [L45] int tmp ; [L46] int tmp___0 ; [L47] int tmp___1 ; [L51] CALL, EXPR isMethaneLevelCritical() [L487] int retValue_acc ; [L490] retValue_acc = methaneLevelCritical [L491] return (retValue_acc); [L51] RET, EXPR isMethaneLevelCritical() [L51] tmp = isMethaneLevelCritical() [L53] COND FALSE !(\read(tmp)) [L57] CALL, EXPR getWaterLevel() [L519] int retValue_acc ; [L522] retValue_acc = waterLevel [L523] return (retValue_acc); [L57] RET, EXPR getWaterLevel() [L57] tmp___0 = getWaterLevel() [L59] COND TRUE tmp___0 == 2 [L61] CALL, EXPR isPumpRunning() [L701] int retValue_acc ; [L704] retValue_acc = pumpRunning [L705] return (retValue_acc); [L61] RET, EXPR isPumpRunning() [L61] tmp___1 = isPumpRunning() [L63] COND FALSE !(\read(tmp___1)) [L67] CALL __automaton_fail() [L532] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 37 procedures, 600 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 30.3s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 11.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 696 SDtfs, 1371 SDslu, 1028 SDs, 0 SdLazy, 2034 SolverSat, 469 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 102 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 4.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=743occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 3 MinimizatonAttempts, 188 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 18.0s InterpolantComputationTime, 656 NumberOfCodeBlocks, 656 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 476 ConstructedInterpolants, 0 QuantifiedInterpolants, 202788 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...