/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --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_product43.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 10:56:59,281 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 10:56:59,286 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 10:56:59,331 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 10:56:59,331 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 10:56:59,339 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 10:56:59,341 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 10:56:59,345 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 10:56:59,348 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 10:56:59,351 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 10:56:59,352 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 10:56:59,353 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 10:56:59,354 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 10:56:59,357 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 10:56:59,360 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 10:56:59,363 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 10:56:59,364 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 10:56:59,365 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 10:56:59,367 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 10:56:59,377 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 10:56:59,379 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 10:56:59,380 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 10:56:59,381 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 10:56:59,382 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 10:56:59,394 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 10:56:59,394 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 10:56:59,395 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 10:56:59,402 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 10:56:59,402 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 10:56:59,403 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 10:56:59,404 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 10:56:59,405 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 10:56:59,405 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 10:56:59,406 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 10:56:59,410 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 10:56:59,411 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 10:56:59,412 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 10:56:59,413 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 10:56:59,414 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 10:56:59,415 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 10:56:59,416 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 10:56:59,417 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 10:56:59,452 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 10:56:59,452 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 10:56:59,453 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 10:56:59,453 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 10:56:59,454 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 10:56:59,454 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 10:56:59,454 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 10:56:59,454 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 10:56:59,455 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 10:56:59,455 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 10:56:59,455 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 10:56:59,455 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 10:56:59,455 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 10:56:59,456 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 10:56:59,456 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 10:56:59,456 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 10:56:59,456 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 10:56:59,457 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 10:56:59,457 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 10:56:59,457 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 10:56:59,457 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 10:56:59,458 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 10:56:59,458 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 10:56:59,458 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 10:56:59,458 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 10:56:59,458 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 10:56:59,459 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 10:56:59,459 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 10:56:59,459 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 10:56:59,459 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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; [2020-09-25 10:56:59,928 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 10:56:59,943 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 10:56:59,948 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 10:56:59,949 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 10:56:59,951 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 10:56:59,952 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product43.cil.c [2020-09-25 10:57:00,039 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/06681eeb4/fc03a71860c045bbbd9169022d5b5dd9/FLAG034f0aedd [2020-09-25 10:57:00,657 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 10:57:00,658 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product43.cil.c [2020-09-25 10:57:00,672 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/06681eeb4/fc03a71860c045bbbd9169022d5b5dd9/FLAG034f0aedd [2020-09-25 10:57:00,924 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/06681eeb4/fc03a71860c045bbbd9169022d5b5dd9 [2020-09-25 10:57:00,939 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 10:57:00,948 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 10:57:00,952 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 10:57:00,952 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 10:57:00,956 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 10:57:00,957 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 10:57:00" (1/1) ... [2020-09-25 10:57:00,963 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@277364e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:57:00, skipping insertion in model container [2020-09-25 10:57:00,963 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 10:57:00" (1/1) ... [2020-09-25 10:57:00,973 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 10:57:01,043 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 10:57:01,532 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 10:57:01,545 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 10:57:01,623 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 10:57:01,665 INFO L208 MainTranslator]: Completed translation [2020-09-25 10:57:01,666 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:57:01 WrapperNode [2020-09-25 10:57:01,666 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 10:57:01,668 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 10:57:01,668 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 10:57:01,668 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 10:57:01,684 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:57:01" (1/1) ... [2020-09-25 10:57:01,685 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:57:01" (1/1) ... [2020-09-25 10:57:01,708 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:57:01" (1/1) ... [2020-09-25 10:57:01,708 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:57:01" (1/1) ... [2020-09-25 10:57:01,744 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:57:01" (1/1) ... [2020-09-25 10:57:01,766 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:57:01" (1/1) ... [2020-09-25 10:57:01,774 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:57:01" (1/1) ... [2020-09-25 10:57:01,791 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 10:57:01,791 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 10:57:01,791 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 10:57:01,797 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 10:57:01,799 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:57:01" (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 10:57:01,885 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 10:57:01,885 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 10:57:01,885 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 10:57:01,885 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 10:57:01,885 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 10:57:01,885 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 10:57:01,886 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 10:57:01,886 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 10:57:01,886 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 10:57:01,886 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-25 10:57:01,886 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 10:57:01,887 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 10:57:01,887 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 10:57:01,887 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 10:57:01,887 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 10:57:01,887 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 10:57:01,888 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 10:57:01,888 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 10:57:01,888 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 10:57:01,888 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 10:57:01,888 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 10:57:01,889 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 10:57:01,889 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 10:57:01,889 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-09-25 10:57:01,889 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 10:57:01,889 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 10:57:01,890 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 10:57:01,890 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 10:57:01,890 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 10:57:01,890 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 10:57:01,890 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 10:57:01,890 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 10:57:01,891 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 10:57:01,891 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 10:57:01,891 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 10:57:01,891 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 10:57:01,891 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 10:57:01,891 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 10:57:01,892 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 10:57:01,892 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 10:57:01,892 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 10:57:01,892 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 10:57:01,892 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 10:57:01,892 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 10:57:01,893 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 10:57:01,893 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 10:57:01,893 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 10:57:01,893 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 10:57:01,893 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 10:57:01,893 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 10:57:01,894 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 10:57:01,894 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 10:57:01,894 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 10:57:01,894 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 10:57:01,894 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 10:57:01,894 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 10:57:01,895 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 10:57:01,895 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 10:57:01,895 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 10:57:01,895 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-25 10:57:01,895 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 10:57:01,895 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 10:57:01,895 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 10:57:01,896 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 10:57:01,896 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 10:57:01,896 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 10:57:01,896 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 10:57:01,896 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 10:57:01,896 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 10:57:01,897 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 10:57:01,897 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 10:57:01,897 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 10:57:01,897 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 10:57:01,897 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 10:57:01,897 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 10:57:01,898 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 10:57:01,898 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 10:57:01,898 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 10:57:01,898 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 10:57:01,898 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 10:57:01,898 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 10:57:01,899 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 10:57:01,899 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 10:57:01,899 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 10:57:01,899 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 10:57:01,899 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 10:57:01,899 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 10:57:01,900 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-09-25 10:57:01,900 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 10:57:01,900 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 10:57:01,900 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 10:57:01,900 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 10:57:03,003 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 10:57:03,004 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 10:57:03,011 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 10:57:03 BoogieIcfgContainer [2020-09-25 10:57:03,011 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 10:57:03,012 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 10:57:03,012 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 10:57:03,016 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 10:57:03,016 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 10:57:00" (1/3) ... [2020-09-25 10:57:03,017 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@404b566b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 10:57:03, skipping insertion in model container [2020-09-25 10:57:03,017 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:57:01" (2/3) ... [2020-09-25 10:57:03,018 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@404b566b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 10:57:03, skipping insertion in model container [2020-09-25 10:57:03,018 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 10:57:03" (3/3) ... [2020-09-25 10:57:03,020 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product43.cil.c [2020-09-25 10:57:03,032 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 10:57:03,044 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 10:57:03,068 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 10:57:03,100 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 10:57:03,101 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 10:57:03,101 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 10:57:03,101 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 10:57:03,101 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 10:57:03,101 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 10:57:03,101 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 10:57:03,102 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 10:57:03,130 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states. [2020-09-25 10:57:03,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-25 10:57:03,149 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:57:03,150 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 10:57:03,151 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:57:03,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:57:03,159 INFO L82 PathProgramCache]: Analyzing trace with hash -377200977, now seen corresponding path program 1 times [2020-09-25 10:57:03,171 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:57:03,171 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [381988152] [2020-09-25 10:57:03,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:57:03,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:57:03,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:57:03,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:57:05,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:57:08,505 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:57:08,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-25 10:57:08,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 10:57:08,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-09-25 10:57:08,510 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:57:08,511 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:57:08,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 10:57:08,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-25 10:57:08,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-09-25 10:57:08,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 10:57:09,001 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 10:57:09,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:57:09,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:57:09,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:57:09,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:57:09,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 10:57:09,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:57:09,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 286 [2020-09-25 10:57:09,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:57:09,353 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:57:09,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:57:09,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:57:09,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 10:57:09,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:57:09,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 10:57:09,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:57:09,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:57:09,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:57:09,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:57:09,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:57:09,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 10:57:09,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:57:09,449 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:57:09,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:57:09,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:57:09,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:57:09,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 22 [2020-09-25 10:57:09,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 10:57:09,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:57:09,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:57:09,488 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:57:09,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:57:09,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:57:09,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 10:57:09,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:57:09,489 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:57:09,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:57:09,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:57:09,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:57:09,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:57:09,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 10:57:09,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:57:09,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:57:09,502 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:57:09,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:57:09,502 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:57:09,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 10:57:09,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:57:09,503 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:57:09,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:57:09,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:57:09,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 10:57:09,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:57:09,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 10:57:09,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:57:09,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:57:09,514 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:57:09,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:57:09,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:57:09,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 10:57:09,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:57:09,516 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:57:09,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:57:09,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:57:09,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:57:09,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:57:09,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 10:57:09,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:57:09,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:57:09,526 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:57:09,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:57:09,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:57:09,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 10:57:09,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:57:09,527 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:57:09,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:57:09,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:57:09,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 10:57:09,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:57:09,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 10:57:09,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:57:09,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:57:09,543 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:57:09,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:57:09,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:57:09,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 10:57:09,545 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:57:09,545 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:57:09,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 10:57:09,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:57:09,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 10:57:09,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:57:09,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-25 10:57:09,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:57:09,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:57:09,579 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:57:09,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:57:09,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:57:09,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 10:57:09,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:57:09,580 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:57:09,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:57:09,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 10:57:09,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:57:09,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:57:09,623 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 10:57:09,624 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [381988152] [2020-09-25 10:57:09,626 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 10:57:09,627 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 10:57:09,628 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153882228] [2020-09-25 10:57:09,636 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 10:57:09,637 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:57:09,654 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 10:57:09,656 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-25 10:57:09,659 INFO L87 Difference]: Start difference. First operand 315 states. Second operand 8 states. [2020-09-25 10:57:10,213 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 10:57:11,888 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 10:57:12,226 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 10:57:12,579 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 10:57:12,915 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 10:57:13,239 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 10:57:13,543 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 10:57:13,860 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 10:57:15,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:57:15,231 INFO L93 Difference]: Finished difference Result 662 states and 809 transitions. [2020-09-25 10:57:15,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 10:57:15,235 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 153 [2020-09-25 10:57:15,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:57:15,255 INFO L225 Difference]: With dead ends: 662 [2020-09-25 10:57:15,255 INFO L226 Difference]: Without dead ends: 458 [2020-09-25 10:57:15,262 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-09-25 10:57:15,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 458 states. [2020-09-25 10:57:15,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 458 to 410. [2020-09-25 10:57:15,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 410 states. [2020-09-25 10:57:15,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 410 states and 461 transitions. [2020-09-25 10:57:15,425 INFO L78 Accepts]: Start accepts. Automaton has 410 states and 461 transitions. Word has length 153 [2020-09-25 10:57:15,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:57:15,426 INFO L479 AbstractCegarLoop]: Abstraction has 410 states and 461 transitions. [2020-09-25 10:57:15,426 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 10:57:15,426 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states and 461 transitions. [2020-09-25 10:57:15,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2020-09-25 10:57:15,432 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:57:15,433 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] [2020-09-25 10:57:15,433 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 10:57:15,433 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:57:15,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:57:15,434 INFO L82 PathProgramCache]: Analyzing trace with hash 1971495200, now seen corresponding path program 1 times [2020-09-25 10:57:15,434 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:57:15,434 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2114624422] [2020-09-25 10:57:15,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:57:15,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:57:15,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:57:16,624 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:57:16,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 201 [2020-09-25 10:57:16,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:57:16,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1132 [2020-09-25 10:57:16,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:57:16,625 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:57:16,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 10:57:16,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-25 10:57:16,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 10:57:16,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:57:16,931 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 10:57:16,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:57:16,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:57:16,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:57:17,191 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:57:17,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 10:57:17,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:57:17,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 225 [2020-09-25 10:57:17,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:57:17,193 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:57:17,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:57:17,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:57:17,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 10:57:17,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:57:17,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 10:57:17,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:57:17,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:57:17,240 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:57:17,240 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:57:17,240 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:57:17,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 10:57:17,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:57:17,241 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:57:17,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:57:17,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:57:17,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:57:17,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:57:17,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 10:57:17,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:57:17,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:57:17,248 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:57:17,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:57:17,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:57:17,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 10:57:17,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:57:17,249 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:57:17,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:57:17,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:57:17,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:57:17,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:57:17,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 10:57:17,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:57:17,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:57:17,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:57:17,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:57:17,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:57:17,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 10:57:17,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:57:17,262 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:57:17,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:57:17,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:57:17,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 10:57:17,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:57:17,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 10:57:17,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:57:17,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:57:17,268 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:57:17,268 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:57:17,269 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:57:17,269 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 10:57:17,269 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:57:17,269 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:57:17,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:57:17,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:57:17,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:57:17,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:57:17,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-25 10:57:17,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:57:17,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:57:17,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:57:17,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 10:57:17,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:57:17,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 10:57:17,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:57:17,292 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:57:17,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:57:17,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:57:17,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 10:57:17,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:57:17,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 10:57:17,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:57:17,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:57:17,299 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:57:17,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:57:17,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:57:17,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 10:57:17,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:57:17,300 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:57:17,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:57:17,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 10:57:17,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:57:17,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:57:17,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-09-25 10:57:17,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:57:17,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:57:17,305 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:57:17,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:57:17,306 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:57:17,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 10:57:17,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:57:17,306 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:57:17,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:57:17,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 10:57:17,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:57:17,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:57:17,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2020-09-25 10:57:17,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:57:17,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:57:17,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:57:17,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:57:17,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:57:17,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 10:57:17,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:57:17,312 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:57:17,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:57:17,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 10:57:17,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:57:17,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:57:17,372 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 10:57:17,373 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2114624422] [2020-09-25 10:57:17,373 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 10:57:17,374 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 10:57:17,374 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471633261] [2020-09-25 10:57:17,377 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 10:57:17,377 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:57:17,377 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 10:57:17,378 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 10:57:17,378 INFO L87 Difference]: Start difference. First operand 410 states and 461 transitions. Second operand 6 states. [2020-09-25 10:57:17,968 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 10:57:19,002 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 10:57:21,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:57:21,595 INFO L93 Difference]: Finished difference Result 1276 states and 1571 transitions. [2020-09-25 10:57:21,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 10:57:21,596 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 168 [2020-09-25 10:57:21,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:57:21,606 INFO L225 Difference]: With dead ends: 1276 [2020-09-25 10:57:21,606 INFO L226 Difference]: Without dead ends: 976 [2020-09-25 10:57:21,611 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2020-09-25 10:57:21,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 976 states. [2020-09-25 10:57:21,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 976 to 843. [2020-09-25 10:57:21,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 843 states. [2020-09-25 10:57:21,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 843 states to 843 states and 983 transitions. [2020-09-25 10:57:21,749 INFO L78 Accepts]: Start accepts. Automaton has 843 states and 983 transitions. Word has length 168 [2020-09-25 10:57:21,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:57:21,750 INFO L479 AbstractCegarLoop]: Abstraction has 843 states and 983 transitions. [2020-09-25 10:57:21,750 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 10:57:21,750 INFO L276 IsEmpty]: Start isEmpty. Operand 843 states and 983 transitions. [2020-09-25 10:57:21,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-09-25 10:57:21,754 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:57:21,755 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 10:57:21,755 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 10:57:21,755 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:57:21,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:57:21,755 INFO L82 PathProgramCache]: Analyzing trace with hash 762484350, now seen corresponding path program 1 times [2020-09-25 10:57:21,756 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:57:21,756 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [605894678] [2020-09-25 10:57:21,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:57:21,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:57:21,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:57:21,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:57:22,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:57:25,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:57:26,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:57:26,816 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:57:26,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 206 [2020-09-25 10:57:26,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 10:57:26,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-09-25 10:57:26,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:57:26,818 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:57:26,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 10:57:26,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 139 [2020-09-25 10:57:26,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-09-25 10:57:26,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:57:27,098 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 10:57:27,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:57:27,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:57:27,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:57:27,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:57:27,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 10:57:27,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:57:27,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-09-25 10:57:27,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:57:27,208 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:57:27,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:57:27,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:57:27,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:57:27,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:57:27,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 10:57:27,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:57:27,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:57:27,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:57:27,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:57:27,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:57:27,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 10:57:27,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:57:27,247 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:57:27,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:57:27,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:57:27,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:57:27,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:57:27,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 10:57:27,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:57:27,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:57:27,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:57:27,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:57:27,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:57:27,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 10:57:27,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:57:27,252 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:57:27,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:57:27,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:57:27,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:57:27,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 10:57:27,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 10:57:27,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:57:27,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:57:27,260 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:57:27,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:57:27,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:57:27,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 10:57:27,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:57:27,261 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:57:27,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:57:27,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:57:27,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:57:27,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:57:27,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 10:57:27,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:57:27,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:57:27,266 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:57:27,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:57:27,266 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:57:27,266 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 10:57:27,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:57:27,267 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:57:27,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:57:27,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:57:27,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:57:27,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:57:27,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-09-25 10:57:27,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:57:27,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:57:27,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:57:27,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 10:57:27,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:57:27,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 10:57:27,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:57:27,289 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:57:27,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:57:27,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:57:27,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 10:57:27,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:57:27,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-09-25 10:57:27,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:57:27,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:57:27,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:57:27,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:57:27,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 10:57:27,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 10:57:27,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 10:57:27,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:57:27,317 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:57:27,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 10:57:27,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 10:57:27,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 10:57:27,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:57:27,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:57:27,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:57:27,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:57:27,350 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:57:27,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:57:27,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:57:27,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 10:57:27,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:57:27,352 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:57:27,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:57:27,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:57:27,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:57:27,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:57:27,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 10:57:27,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:57:27,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:57:27,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:57:27,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:57:27,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:57:27,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 10:57:27,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:57:27,362 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:57:27,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:57:27,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:57:27,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 10:57:27,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:57:27,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-09-25 10:57:27,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:57:27,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:57:27,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:57:27,395 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:57:27,395 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:57:27,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 10:57:27,396 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:57:27,396 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:57:27,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:57:27,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:57:27,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 10:57:27,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 10:57:27,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-09-25 10:57:27,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:57:27,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:57:27,411 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:57:27,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:57:27,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:57:27,412 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 10:57:27,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:57:27,412 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:57:27,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 10:57:27,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:57:27,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 10:57:27,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:57:27,502 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 10:57:27,503 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [605894678] [2020-09-25 10:57:27,503 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 10:57:27,503 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 10:57:27,503 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642722367] [2020-09-25 10:57:27,504 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 10:57:27,505 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:57:27,505 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 10:57:27,505 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 10:57:27,506 INFO L87 Difference]: Start difference. First operand 843 states and 983 transitions. Second operand 10 states. [2020-09-25 10:57:28,566 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 10:57:30,192 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 10:57:30,538 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 10:57:30,883 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 10:57:31,266 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 10:57:31,590 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 10:57:32,041 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 10:57:32,366 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 10:57:32,899 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 10:57:34,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:57:34,104 INFO L93 Difference]: Finished difference Result 2326 states and 2984 transitions. [2020-09-25 10:57:34,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-25 10:57:34,105 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 167 [2020-09-25 10:57:34,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:57:34,121 INFO L225 Difference]: With dead ends: 2326 [2020-09-25 10:57:34,121 INFO L226 Difference]: Without dead ends: 1452 [2020-09-25 10:57:34,127 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 26 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2020-09-25 10:57:34,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1452 states. [2020-09-25 10:57:34,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1452 to 1189. [2020-09-25 10:57:34,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1189 states. [2020-09-25 10:57:34,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1189 states to 1189 states and 1356 transitions. [2020-09-25 10:57:34,367 INFO L78 Accepts]: Start accepts. Automaton has 1189 states and 1356 transitions. Word has length 167 [2020-09-25 10:57:34,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:57:34,369 INFO L479 AbstractCegarLoop]: Abstraction has 1189 states and 1356 transitions. [2020-09-25 10:57:34,369 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 10:57:34,369 INFO L276 IsEmpty]: Start isEmpty. Operand 1189 states and 1356 transitions. [2020-09-25 10:57:34,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-09-25 10:57:34,377 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:57:34,378 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 10:57:34,378 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 10:57:34,378 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:57:34,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:57:34,379 INFO L82 PathProgramCache]: Analyzing trace with hash -1797665662, now seen corresponding path program 1 times [2020-09-25 10:57:34,379 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:57:34,380 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1179151145] [2020-09-25 10:57:34,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:57:34,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 10:57:34,463 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 10:57:34,463 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 10:57:34,471 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 10:57:34,513 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 10:57:34 BoogieIcfgContainer [2020-09-25 10:57:34,514 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 10:57:34,516 INFO L168 Benchmark]: Toolchain (without parser) took 33575.35 ms. Allocated memory was 140.0 MB in the beginning and 610.3 MB in the end (delta: 470.3 MB). Free memory was 102.7 MB in the beginning and 325.7 MB in the end (delta: -223.1 MB). Peak memory consumption was 247.2 MB. Max. memory is 7.1 GB. [2020-09-25 10:57:34,517 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 10:57:34,520 INFO L168 Benchmark]: CACSL2BoogieTranslator took 714.70 ms. Allocated memory was 140.0 MB in the beginning and 201.9 MB in the end (delta: 61.9 MB). Free memory was 102.0 MB in the beginning and 170.2 MB in the end (delta: -68.2 MB). Peak memory consumption was 25.8 MB. Max. memory is 7.1 GB. [2020-09-25 10:57:34,528 INFO L168 Benchmark]: Boogie Preprocessor took 123.34 ms. Allocated memory is still 201.9 MB. Free memory was 170.2 MB in the beginning and 165.4 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. [2020-09-25 10:57:34,530 INFO L168 Benchmark]: RCFGBuilder took 1219.81 ms. Allocated memory was 201.9 MB in the beginning and 235.9 MB in the end (delta: 34.1 MB). Free memory was 165.4 MB in the beginning and 175.7 MB in the end (delta: -10.3 MB). Peak memory consumption was 82.5 MB. Max. memory is 7.1 GB. [2020-09-25 10:57:34,531 INFO L168 Benchmark]: TraceAbstraction took 31501.45 ms. Allocated memory was 235.9 MB in the beginning and 610.3 MB in the end (delta: 374.3 MB). Free memory was 175.7 MB in the beginning and 325.7 MB in the end (delta: -150.0 MB). Peak memory consumption was 224.3 MB. Max. memory is 7.1 GB. [2020-09-25 10:57:34,543 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 714.70 ms. Allocated memory was 140.0 MB in the beginning and 201.9 MB in the end (delta: 61.9 MB). Free memory was 102.0 MB in the beginning and 170.2 MB in the end (delta: -68.2 MB). Peak memory consumption was 25.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 123.34 ms. Allocated memory is still 201.9 MB. Free memory was 170.2 MB in the beginning and 165.4 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1219.81 ms. Allocated memory was 201.9 MB in the beginning and 235.9 MB in the end (delta: 34.1 MB). Free memory was 165.4 MB in the beginning and 175.7 MB in the end (delta: -10.3 MB). Peak memory consumption was 82.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 31501.45 ms. Allocated memory was 235.9 MB in the beginning and 610.3 MB in the end (delta: 374.3 MB). Free memory was 175.7 MB in the beginning and 325.7 MB in the end (delta: -150.0 MB). Peak memory consumption was 224.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 148]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L40] int cleanupTimeShifts = 4; [L359] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L597] int pumpRunning = 0; [L598] int systemActive = 1; [L849] int waterLevel = 1; [L850] int methaneLevelCritical = 0; [L121] int retValue_acc ; [L122] int tmp ; [L126] FCALL select_helpers() [L127] FCALL select_features() [L128] CALL, EXPR valid_product() [L582] int retValue_acc ; [L585] retValue_acc = 1 [L586] return (retValue_acc); [L128] RET, EXPR valid_product() [L128] tmp = valid_product() [L130] COND TRUE \read(tmp) [L132] FCALL setup() [L133] CALL runTest() [L112] CALL test() [L783] int splverifierCounter ; [L784] int tmp ; [L785] int tmp___0 ; [L786] int tmp___1 ; [L787] int tmp___2 ; [L790] splverifierCounter = 0 [L792] COND TRUE 1 [L794] COND TRUE splverifierCounter < 4 [L800] tmp = __VERIFIER_nondet_int() [L802] COND TRUE \read(tmp) [L804] CALL waterRise() [L867] COND TRUE waterLevel < 2 [L868] waterLevel = waterLevel + 1 [L804] RET waterRise() [L810] tmp___0 = __VERIFIER_nondet_int() [L812] COND FALSE !(\read(tmp___0)) [L820] tmp___2 = __VERIFIER_nondet_int() [L822] COND FALSE !(\read(tmp___2)) [L826] tmp___1 = __VERIFIER_nondet_int() [L828] COND TRUE \read(tmp___1) [L830] CALL stopSystem() [L770] COND FALSE !(\read(pumpRunning)) [L777] systemActive = 0 [L830] RET stopSystem() [L837] CALL timeShift() [L604] COND FALSE !(\read(pumpRunning)) [L611] COND FALSE !(\read(systemActive)) [L619] CALL __utac_acc__Specification3_spec__1() [L157] int tmp ; [L158] int tmp___0 ; [L159] int tmp___1 ; [L163] CALL, EXPR isMethaneLevelCritical() [L888] int retValue_acc ; [L891] retValue_acc = methaneLevelCritical [L892] return (retValue_acc); [L163] RET, EXPR isMethaneLevelCritical() [L163] tmp = isMethaneLevelCritical() [L165] COND FALSE !(\read(tmp)) [L169] CALL, EXPR getWaterLevel() [L920] int retValue_acc ; [L923] retValue_acc = waterLevel [L924] return (retValue_acc); [L169] RET, EXPR getWaterLevel() [L169] tmp___0 = getWaterLevel() [L171] COND TRUE tmp___0 == 2 [L173] CALL, EXPR isPumpRunning() [L703] int retValue_acc ; [L706] retValue_acc = pumpRunning [L707] return (retValue_acc); [L173] RET, EXPR isPumpRunning() [L173] tmp___1 = isPumpRunning() [L175] COND FALSE !(\read(tmp___1)) [L179] CALL __automaton_fail() [L148] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 39 procedures, 627 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 31.3s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 16.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 869 SDtfs, 1712 SDslu, 1768 SDs, 0 SdLazy, 3953 SolverSat, 588 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 9.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 115 GetRequests, 71 SyntacticMatches, 1 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 6.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1189occurred 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, 444 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 13.5s InterpolantComputationTime, 665 NumberOfCodeBlocks, 665 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 485 ConstructedInterpolants, 0 QuantifiedInterpolants, 215272 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...