/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=NARROWEST --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 01:50:51,408 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 01:50:51,412 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 01:50:51,459 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 01:50:51,460 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 01:50:51,461 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 01:50:51,462 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 01:50:51,464 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 01:50:51,466 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 01:50:51,467 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 01:50:51,468 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 01:50:51,469 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 01:50:51,470 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 01:50:51,471 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 01:50:51,472 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 01:50:51,473 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 01:50:51,475 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 01:50:51,476 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 01:50:51,477 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 01:50:51,479 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 01:50:51,481 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 01:50:51,482 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 01:50:51,484 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 01:50:51,485 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 01:50:51,490 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 01:50:51,490 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 01:50:51,490 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 01:50:51,492 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 01:50:51,492 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 01:50:51,495 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 01:50:51,496 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 01:50:51,496 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 01:50:51,499 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 01:50:51,501 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 01:50:51,502 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 01:50:51,502 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 01:50:51,504 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 01:50:51,504 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 01:50:51,505 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 01:50:51,506 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 01:50:51,507 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 01:50:51,509 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 01:50:51,559 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 01:50:51,559 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 01:50:51,561 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 01:50:51,562 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 01:50:51,562 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 01:50:51,562 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 01:50:51,563 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 01:50:51,563 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 01:50:51,563 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 01:50:51,563 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 01:50:51,564 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 01:50:51,565 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 01:50:51,565 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 01:50:51,565 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 01:50:51,566 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 01:50:51,566 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 01:50:51,566 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 01:50:51,566 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 01:50:51,566 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 01:50:51,567 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 01:50:51,567 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 01:50:51,567 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 01:50:51,568 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 01:50:51,568 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 01:50:51,568 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 01:50:51,568 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 01:50:51,569 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 01:50:51,569 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 01:50:51,569 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 01:50:51,569 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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;log-additional-information=true; [2020-09-25 01:50:52,023 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 01:50:52,049 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 01:50:52,056 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 01:50:52,059 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 01:50:52,060 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 01:50:52,061 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product43.cil.c [2020-09-25 01:50:52,152 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ebe312cd4/2e530fede69c438a8ec9a32ff541f1b9/FLAGd71307d8b [2020-09-25 01:50:52,809 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 01:50:52,810 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product43.cil.c [2020-09-25 01:50:52,834 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ebe312cd4/2e530fede69c438a8ec9a32ff541f1b9/FLAGd71307d8b [2020-09-25 01:50:53,042 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ebe312cd4/2e530fede69c438a8ec9a32ff541f1b9 [2020-09-25 01:50:53,055 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 01:50:53,061 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 01:50:53,062 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 01:50:53,062 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 01:50:53,066 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 01:50:53,068 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:50:53" (1/1) ... [2020-09-25 01:50:53,072 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4576fe6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:50:53, skipping insertion in model container [2020-09-25 01:50:53,072 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:50:53" (1/1) ... [2020-09-25 01:50:53,081 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 01:50:53,139 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 01:50:53,490 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 01:50:53,507 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 01:50:53,762 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 01:50:53,803 INFO L208 MainTranslator]: Completed translation [2020-09-25 01:50:53,804 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:50:53 WrapperNode [2020-09-25 01:50:53,804 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 01:50:53,805 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 01:50:53,805 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 01:50:53,806 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 01:50:53,820 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:50:53" (1/1) ... [2020-09-25 01:50:53,821 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:50:53" (1/1) ... [2020-09-25 01:50:53,842 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:50:53" (1/1) ... [2020-09-25 01:50:53,842 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:50:53" (1/1) ... [2020-09-25 01:50:53,874 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:50:53" (1/1) ... [2020-09-25 01:50:53,886 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:50:53" (1/1) ... [2020-09-25 01:50:53,892 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:50:53" (1/1) ... [2020-09-25 01:50:53,900 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 01:50:53,901 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 01:50:53,901 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 01:50:53,902 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 01:50:53,903 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:50:53" (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 01:50:53,984 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 01:50:53,984 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 01:50:53,984 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 01:50:53,984 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 01:50:53,985 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 01:50:53,985 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 01:50:53,985 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 01:50:53,985 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 01:50:53,985 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 01:50:53,986 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-25 01:50:53,986 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 01:50:53,986 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 01:50:53,986 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 01:50:53,986 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 01:50:53,987 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 01:50:53,987 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 01:50:53,987 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 01:50:53,987 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 01:50:53,987 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 01:50:53,988 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 01:50:53,988 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 01:50:53,988 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 01:50:53,988 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 01:50:53,988 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-09-25 01:50:53,989 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 01:50:53,989 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 01:50:53,989 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 01:50:53,989 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 01:50:53,989 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 01:50:53,990 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 01:50:53,990 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 01:50:53,990 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 01:50:53,990 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 01:50:53,990 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 01:50:53,990 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 01:50:53,990 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 01:50:53,991 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 01:50:53,991 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 01:50:53,991 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 01:50:53,991 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 01:50:53,991 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 01:50:53,991 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 01:50:53,992 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 01:50:53,992 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 01:50:53,992 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 01:50:53,992 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 01:50:53,992 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 01:50:53,992 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 01:50:53,993 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 01:50:53,993 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 01:50:53,993 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 01:50:53,993 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 01:50:53,993 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 01:50:53,993 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 01:50:53,994 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 01:50:53,994 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 01:50:53,994 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 01:50:53,994 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 01:50:53,994 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 01:50:53,994 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-25 01:50:53,995 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 01:50:53,995 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 01:50:53,995 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 01:50:53,995 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 01:50:53,995 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 01:50:53,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 01:50:53,996 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 01:50:53,996 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 01:50:53,996 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 01:50:53,996 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 01:50:53,996 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 01:50:53,996 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 01:50:53,996 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 01:50:53,997 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 01:50:53,997 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 01:50:53,997 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 01:50:53,997 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 01:50:53,997 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 01:50:53,998 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 01:50:53,998 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 01:50:53,998 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 01:50:53,998 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 01:50:53,998 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 01:50:53,998 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 01:50:53,999 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 01:50:53,999 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 01:50:53,999 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 01:50:53,999 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-09-25 01:50:53,999 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 01:50:53,999 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 01:50:53,999 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 01:50:54,000 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 01:50:55,125 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 01:50:55,125 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 01:50:55,133 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:50:55 BoogieIcfgContainer [2020-09-25 01:50:55,133 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 01:50:55,135 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 01:50:55,135 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 01:50:55,140 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 01:50:55,140 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 01:50:53" (1/3) ... [2020-09-25 01:50:55,141 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f03bae9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:50:55, skipping insertion in model container [2020-09-25 01:50:55,142 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:50:53" (2/3) ... [2020-09-25 01:50:55,142 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f03bae9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:50:55, skipping insertion in model container [2020-09-25 01:50:55,143 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:50:55" (3/3) ... [2020-09-25 01:50:55,145 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product43.cil.c [2020-09-25 01:50:55,158 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 01:50:55,174 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 01:50:55,198 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 01:50:55,243 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 01:50:55,243 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 01:50:55,243 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 01:50:55,244 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 01:50:55,244 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 01:50:55,244 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 01:50:55,244 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 01:50:55,244 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 01:50:55,291 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states. [2020-09-25 01:50:55,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-25 01:50:55,325 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:50:55,327 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 01:50:55,328 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:50:55,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:50:55,337 INFO L82 PathProgramCache]: Analyzing trace with hash -377200977, now seen corresponding path program 1 times [2020-09-25 01:50:55,349 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:50:55,349 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1739998741] [2020-09-25 01:50:55,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:50:55,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:50:55,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:50:56,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:50:57,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:00,806 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:00,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-25 01:51:00,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 01:51:00,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5021 [2020-09-25 01:51:00,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:00,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:51:00,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-25 01:51:00,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:51:00,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 01:51:01,362 WARN L193 SmtUtils]: Spent 405.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 01:51:01,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:51:01,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:01,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:01,540 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:01,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 01:51:01,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:51:01,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 157 [2020-09-25 01:51:01,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:01,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:51:01,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:51:01,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:51:01,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:51:01,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 01:51:01,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:01,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:01,623 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:01,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:51:01,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:51:01,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:51:01,624 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:01,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:51:01,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:51:01,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:51:01,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:51:01,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 01:51:01,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:01,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:01,632 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:01,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:51:01,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:51:01,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:51:01,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:01,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:51:01,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:51:01,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:51:01,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:51:01,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 01:51:01,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:01,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:01,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:01,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:51:01,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:51:01,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 01:51:01,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:01,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:51:01,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:51:01,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:51:01,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:51:01,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 01:51:01,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:01,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:01,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:01,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:51:01,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:51:01,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:51:01,657 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:01,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:51:01,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:51:01,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:51:01,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:51:01,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 01:51:01,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:01,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:01,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:01,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:51:01,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:51:01,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:51:01,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:01,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:51:01,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:51:01,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:51:01,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:51:01,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 01:51:01,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:01,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:01,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:01,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:51:01,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:51:01,675 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:51:01,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:01,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:51:01,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:51:01,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:51:01,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:51:01,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-25 01:51:01,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:01,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:01,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:01,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:51:01,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:51:01,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:51:01,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:01,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:51:01,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:51:01,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:51:01,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:51:01,783 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 01:51:01,784 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1739998741] [2020-09-25 01:51:01,787 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:51:01,788 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 01:51:01,789 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399663783] [2020-09-25 01:51:01,797 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 01:51:01,798 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:51:01,825 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 01:51:01,826 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 01:51:01,830 INFO L87 Difference]: Start difference. First operand 315 states. Second operand 3 states. [2020-09-25 01:51:03,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:51:03,271 INFO L93 Difference]: Finished difference Result 497 states and 588 transitions. [2020-09-25 01:51:03,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 01:51:03,273 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-09-25 01:51:03,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:51:03,295 INFO L225 Difference]: With dead ends: 497 [2020-09-25 01:51:03,295 INFO L226 Difference]: Without dead ends: 307 [2020-09-25 01:51:03,301 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 01:51:03,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2020-09-25 01:51:03,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 264. [2020-09-25 01:51:03,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 264 states. [2020-09-25 01:51:03,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 286 transitions. [2020-09-25 01:51:03,416 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 286 transitions. Word has length 153 [2020-09-25 01:51:03,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:51:03,419 INFO L479 AbstractCegarLoop]: Abstraction has 264 states and 286 transitions. [2020-09-25 01:51:03,419 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 01:51:03,419 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 286 transitions. [2020-09-25 01:51:03,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-09-25 01:51:03,428 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:51:03,428 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 01:51:03,428 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 01:51:03,429 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:51:03,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:51:03,429 INFO L82 PathProgramCache]: Analyzing trace with hash -1698755128, now seen corresponding path program 1 times [2020-09-25 01:51:03,429 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:51:03,438 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1521627161] [2020-09-25 01:51:03,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:51:03,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:03,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:03,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:05,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:08,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:08,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-25 01:51:08,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 01:51:08,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-09-25 01:51:08,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:08,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:51:08,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-25 01:51:08,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 01:51:08,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:51:08,795 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 01:51:08,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:51:08,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:08,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:08,952 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:08,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 01:51:08,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:51:08,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 136 [2020-09-25 01:51:08,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:08,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:51:08,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:51:08,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:51:08,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:51:08,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 01:51:08,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:08,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:08,994 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:08,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:51:08,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:51:08,995 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:51:08,995 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:08,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:51:08,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:51:08,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:51:08,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:51:08,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 01:51:08,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:09,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:09,001 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:09,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:51:09,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:51:09,002 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:51:09,002 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:09,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:51:09,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:51:09,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:51:09,003 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:51:09,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 01:51:09,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:09,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:09,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:09,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:51:09,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:51:09,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 01:51:09,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:09,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:51:09,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:51:09,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:51:09,013 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:51:09,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 01:51:09,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:09,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:09,018 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:09,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:51:09,019 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:51:09,019 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:51:09,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:09,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:51:09,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:51:09,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:51:09,020 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:51:09,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-09-25 01:51:09,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:09,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:09,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:09,026 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:51:09,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:51:09,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:51:09,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:09,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:51:09,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:51:09,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:51:09,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:51:09,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-25 01:51:09,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:09,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:09,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:09,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:51:09,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:51:09,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:51:09,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:09,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:51:09,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:51:09,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:51:09,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:51:09,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-25 01:51:09,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:09,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:09,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:09,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:51:09,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:51:09,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:51:09,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:09,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:51:09,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:51:09,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:51:09,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:51:09,080 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 01:51:09,084 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1521627161] [2020-09-25 01:51:09,084 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:51:09,085 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 01:51:09,085 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943544793] [2020-09-25 01:51:09,089 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 01:51:09,089 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:51:09,089 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 01:51:09,089 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 01:51:09,090 INFO L87 Difference]: Start difference. First operand 264 states and 286 transitions. Second operand 4 states. [2020-09-25 01:51:09,795 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 01:51:10,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:51:10,768 INFO L93 Difference]: Finished difference Result 405 states and 453 transitions. [2020-09-25 01:51:10,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 01:51:10,769 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-09-25 01:51:10,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:51:10,776 INFO L225 Difference]: With dead ends: 405 [2020-09-25 01:51:10,776 INFO L226 Difference]: Without dead ends: 290 [2020-09-25 01:51:10,778 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 01:51:10,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2020-09-25 01:51:10,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 254. [2020-09-25 01:51:10,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 254 states. [2020-09-25 01:51:10,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 273 transitions. [2020-09-25 01:51:10,829 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 273 transitions. Word has length 154 [2020-09-25 01:51:10,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:51:10,830 INFO L479 AbstractCegarLoop]: Abstraction has 254 states and 273 transitions. [2020-09-25 01:51:10,830 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 01:51:10,830 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 273 transitions. [2020-09-25 01:51:10,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-09-25 01:51:10,833 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:51:10,834 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 01:51:10,834 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 01:51:10,834 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:51:10,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:51:10,835 INFO L82 PathProgramCache]: Analyzing trace with hash 1272338923, now seen corresponding path program 1 times [2020-09-25 01:51:10,835 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:51:10,835 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [176442287] [2020-09-25 01:51:10,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:51:10,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:10,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:11,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:14,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:14,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 194 [2020-09-25 01:51:14,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 01:51:14,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3913 [2020-09-25 01:51:14,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:14,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 01:51:14,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-25 01:51:14,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-25 01:51:14,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:51:15,146 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 01:51:15,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:51:15,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:15,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:15,321 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:15,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 01:51:15,322 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:51:15,322 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 141 [2020-09-25 01:51:15,322 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:15,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:51:15,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:51:15,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 01:51:15,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:51:15,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 01:51:15,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:15,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:15,389 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:15,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:51:15,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:51:15,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:51:15,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:15,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:51:15,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:51:15,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 01:51:15,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:51:15,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 01:51:15,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:15,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:15,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:15,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:51:15,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:51:15,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:51:15,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:15,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:51:15,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:51:15,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 01:51:15,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:51:15,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 01:51:15,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:15,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:15,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:15,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:51:15,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:51:15,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 01:51:15,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:15,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:51:15,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:51:15,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 01:51:15,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:51:15,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 01:51:15,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:15,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:15,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:15,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:51:15,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:51:15,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:51:15,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:15,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:51:15,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:51:15,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 01:51:15,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:51:15,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 01:51:15,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:15,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:15,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:15,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:51:15,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:51:15,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:51:15,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:15,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:51:15,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:51:15,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:51:15,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:51:15,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-25 01:51:15,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:15,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:15,430 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:15,430 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:51:15,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:51:15,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:51:15,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:15,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:51:15,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:51:15,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:51:15,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:51:15,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2020-09-25 01:51:15,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:15,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:15,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:15,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:51:15,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:51:15,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:51:15,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:15,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:51:15,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:51:15,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:51:15,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:51:15,500 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 01:51:15,501 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [176442287] [2020-09-25 01:51:15,501 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:51:15,501 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 01:51:15,502 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550398965] [2020-09-25 01:51:15,502 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 01:51:15,503 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:51:15,503 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 01:51:15,503 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 01:51:15,503 INFO L87 Difference]: Start difference. First operand 254 states and 273 transitions. Second operand 4 states. [2020-09-25 01:51:16,205 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 01:51:17,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:51:17,930 INFO L93 Difference]: Finished difference Result 590 states and 668 transitions. [2020-09-25 01:51:17,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 01:51:17,930 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 163 [2020-09-25 01:51:17,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:51:17,937 INFO L225 Difference]: With dead ends: 590 [2020-09-25 01:51:17,937 INFO L226 Difference]: Without dead ends: 446 [2020-09-25 01:51:17,940 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 01:51:17,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 446 states. [2020-09-25 01:51:18,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 446 to 386. [2020-09-25 01:51:18,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 386 states. [2020-09-25 01:51:18,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 423 transitions. [2020-09-25 01:51:18,035 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 423 transitions. Word has length 163 [2020-09-25 01:51:18,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:51:18,035 INFO L479 AbstractCegarLoop]: Abstraction has 386 states and 423 transitions. [2020-09-25 01:51:18,036 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 01:51:18,036 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 423 transitions. [2020-09-25 01:51:18,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-09-25 01:51:18,038 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:51:18,039 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] [2020-09-25 01:51:18,039 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 01:51:18,039 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:51:18,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:51:18,039 INFO L82 PathProgramCache]: Analyzing trace with hash 834967554, now seen corresponding path program 1 times [2020-09-25 01:51:18,040 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:51:18,040 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [798566729] [2020-09-25 01:51:18,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:51:18,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:18,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:18,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:19,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:20,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:23,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:23,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 206 [2020-09-25 01:51:23,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 01:51:23,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5019 [2020-09-25 01:51:23,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:23,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 01:51:23,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-09-25 01:51:23,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 01:51:23,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:51:23,448 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 01:51:23,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:51:23,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:23,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:23,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:23,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 01:51:23,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:51:23,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-09-25 01:51:23,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:23,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:51:23,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:51:23,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:51:23,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:51:23,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 01:51:23,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:23,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:23,612 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:23,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:51:23,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:51:23,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:51:23,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:23,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:51:23,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:51:23,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:51:23,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:51:23,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 01:51:23,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:23,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:23,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:23,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:51:23,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:51:23,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:51:23,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:23,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:51:23,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:51:23,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:51:23,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:51:23,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 01:51:23,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:23,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:23,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:23,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:51:23,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:51:23,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:51:23,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:23,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:51:23,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:51:23,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:51:23,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:51:23,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 01:51:23,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:23,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:23,633 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:23,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:51:23,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:51:23,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:51:23,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:23,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:51:23,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:51:23,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:51:23,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:51:23,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-25 01:51:23,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:23,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:23,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:23,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 01:51:23,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:51:23,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 01:51:23,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:23,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 01:51:23,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 01:51:23,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 01:51:23,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:51:23,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 01:51:23,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:23,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:23,691 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:23,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:51:23,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:51:23,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:51:23,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:23,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:51:23,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:51:23,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 01:51:23,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:51:23,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-25 01:51:23,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:23,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:23,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:23,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:51:23,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:51:23,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:51:23,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:23,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:51:23,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:51:23,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:51:23,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:51:23,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-25 01:51:23,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:23,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:23,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:23,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:51:23,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:51:23,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:51:23,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:23,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:51:23,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:51:23,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:51:23,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:51:23,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-09-25 01:51:23,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:23,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:23,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:23,715 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:51:23,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:51:23,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:51:23,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:23,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:51:23,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:51:23,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:51:23,717 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:51:23,758 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 01:51:23,759 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [798566729] [2020-09-25 01:51:23,759 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:51:23,760 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 01:51:23,760 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935033621] [2020-09-25 01:51:23,761 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 01:51:23,762 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:51:23,762 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 01:51:23,763 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-25 01:51:23,763 INFO L87 Difference]: Start difference. First operand 386 states and 423 transitions. Second operand 6 states. [2020-09-25 01:51:24,262 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 01:51:26,160 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 01:51:26,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:51:26,850 INFO L93 Difference]: Finished difference Result 998 states and 1153 transitions. [2020-09-25 01:51:26,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 01:51:26,850 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 171 [2020-09-25 01:51:26,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:51:26,857 INFO L225 Difference]: With dead ends: 998 [2020-09-25 01:51:26,857 INFO L226 Difference]: Without dead ends: 722 [2020-09-25 01:51:26,859 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-09-25 01:51:26,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 722 states. [2020-09-25 01:51:26,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 722 to 629. [2020-09-25 01:51:26,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 629 states. [2020-09-25 01:51:26,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 629 states to 629 states and 692 transitions. [2020-09-25 01:51:26,932 INFO L78 Accepts]: Start accepts. Automaton has 629 states and 692 transitions. Word has length 171 [2020-09-25 01:51:26,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:51:26,933 INFO L479 AbstractCegarLoop]: Abstraction has 629 states and 692 transitions. [2020-09-25 01:51:26,933 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 01:51:26,933 INFO L276 IsEmpty]: Start isEmpty. Operand 629 states and 692 transitions. [2020-09-25 01:51:26,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-09-25 01:51:26,936 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:51:26,936 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 01:51:26,936 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 01:51:26,936 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:51:26,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:51:26,937 INFO L82 PathProgramCache]: Analyzing trace with hash -1418606569, now seen corresponding path program 1 times [2020-09-25 01:51:26,937 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:51:26,937 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [468462218] [2020-09-25 01:51:26,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:51:26,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:27,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:28,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:28,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 205 [2020-09-25 01:51:28,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:51:28,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1614 [2020-09-25 01:51:28,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:28,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 01:51:28,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-25 01:51:28,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-09-25 01:51:28,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:51:28,962 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 01:51:28,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:51:28,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:29,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:29,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:29,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 01:51:29,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:51:29,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 228 [2020-09-25 01:51:29,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:29,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:51:29,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:51:29,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 01:51:29,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:51:29,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 01:51:29,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:29,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:29,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:29,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:51:29,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:51:29,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:51:29,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:29,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:51:29,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:51:29,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 01:51:29,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:51:29,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 01:51:29,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:29,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:29,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:29,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:51:29,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:51:29,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:51:29,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:29,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:51:29,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:51:29,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 01:51:29,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:51:29,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 01:51:29,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:29,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:29,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:29,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:51:29,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:51:29,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 01:51:29,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:29,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:51:29,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:51:29,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 01:51:29,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:51:29,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 01:51:29,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:29,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:29,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:29,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:51:29,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:51:29,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:51:29,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:29,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:51:29,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:51:29,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 01:51:29,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:51:29,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-25 01:51:29,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:29,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:29,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:29,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 01:51:29,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:51:29,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:51:29,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:29,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:51:29,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:51:29,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 01:51:29,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:51:29,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-09-25 01:51:29,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:29,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:29,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:29,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:51:29,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:51:29,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:51:29,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:29,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:51:29,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:51:29,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 01:51:29,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:51:29,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-09-25 01:51:29,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:29,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:29,346 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:29,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:51:29,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:51:29,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 01:51:29,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:29,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 01:51:29,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:51:29,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 01:51:29,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:51:29,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-09-25 01:51:29,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:29,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:29,390 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:29,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:51:29,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:51:29,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:51:29,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:29,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:51:29,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:51:29,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:51:29,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:51:29,430 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 01:51:29,430 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [468462218] [2020-09-25 01:51:29,430 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:51:29,431 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 01:51:29,431 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636600084] [2020-09-25 01:51:29,431 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 01:51:29,432 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:51:29,432 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 01:51:29,432 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 01:51:29,432 INFO L87 Difference]: Start difference. First operand 629 states and 692 transitions. Second operand 10 states. [2020-09-25 01:51:30,015 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 01:51:31,613 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:51:32,243 WARN L193 SmtUtils]: Spent 570.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 192 [2020-09-25 01:51:32,643 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 01:51:33,032 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 01:51:33,358 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 01:51:33,702 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 01:51:34,015 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 01:51:34,528 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:51:35,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:51:35,927 INFO L93 Difference]: Finished difference Result 1696 states and 1989 transitions. [2020-09-25 01:51:35,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 01:51:35,928 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 172 [2020-09-25 01:51:35,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:51:35,936 INFO L225 Difference]: With dead ends: 1696 [2020-09-25 01:51:35,937 INFO L226 Difference]: Without dead ends: 1177 [2020-09-25 01:51:35,939 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=103, Invalid=277, Unknown=0, NotChecked=0, Total=380 [2020-09-25 01:51:35,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1177 states. [2020-09-25 01:51:36,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1177 to 1087. [2020-09-25 01:51:36,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1087 states. [2020-09-25 01:51:36,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1087 states to 1087 states and 1225 transitions. [2020-09-25 01:51:36,075 INFO L78 Accepts]: Start accepts. Automaton has 1087 states and 1225 transitions. Word has length 172 [2020-09-25 01:51:36,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:51:36,075 INFO L479 AbstractCegarLoop]: Abstraction has 1087 states and 1225 transitions. [2020-09-25 01:51:36,076 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 01:51:36,076 INFO L276 IsEmpty]: Start isEmpty. Operand 1087 states and 1225 transitions. [2020-09-25 01:51:36,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-09-25 01:51:36,079 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:51:36,079 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 01:51:36,080 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 01:51:36,080 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:51:36,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:51:36,080 INFO L82 PathProgramCache]: Analyzing trace with hash -1797665662, now seen corresponding path program 1 times [2020-09-25 01:51:36,081 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:51:36,081 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1306868299] [2020-09-25 01:51:36,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:51:36,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 01:51:36,140 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 01:51:36,140 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 01:51:36,145 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 01:51:36,173 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 01:51:36 BoogieIcfgContainer [2020-09-25 01:51:36,173 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 01:51:36,175 INFO L168 Benchmark]: Toolchain (without parser) took 43119.11 ms. Allocated memory was 147.3 MB in the beginning and 633.9 MB in the end (delta: 486.5 MB). Free memory was 103.0 MB in the beginning and 406.2 MB in the end (delta: -303.2 MB). Peak memory consumption was 183.3 MB. Max. memory is 7.1 GB. [2020-09-25 01:51:36,176 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 147.3 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 01:51:36,177 INFO L168 Benchmark]: CACSL2BoogieTranslator took 742.79 ms. Allocated memory was 147.3 MB in the beginning and 207.1 MB in the end (delta: 59.8 MB). Free memory was 102.3 MB in the beginning and 177.1 MB in the end (delta: -74.8 MB). Peak memory consumption was 25.8 MB. Max. memory is 7.1 GB. [2020-09-25 01:51:36,178 INFO L168 Benchmark]: Boogie Preprocessor took 95.53 ms. Allocated memory is still 207.1 MB. Free memory was 177.1 MB in the beginning and 173.0 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. [2020-09-25 01:51:36,179 INFO L168 Benchmark]: RCFGBuilder took 1232.29 ms. Allocated memory was 207.1 MB in the beginning and 234.9 MB in the end (delta: 27.8 MB). Free memory was 173.0 MB in the beginning and 176.4 MB in the end (delta: -3.4 MB). Peak memory consumption was 84.4 MB. Max. memory is 7.1 GB. [2020-09-25 01:51:36,180 INFO L168 Benchmark]: TraceAbstraction took 41038.38 ms. Allocated memory was 234.9 MB in the beginning and 633.9 MB in the end (delta: 399.0 MB). Free memory was 176.4 MB in the beginning and 406.2 MB in the end (delta: -229.8 MB). Peak memory consumption was 169.2 MB. Max. memory is 7.1 GB. [2020-09-25 01:51:36,184 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 147.3 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 742.79 ms. Allocated memory was 147.3 MB in the beginning and 207.1 MB in the end (delta: 59.8 MB). Free memory was 102.3 MB in the beginning and 177.1 MB in the end (delta: -74.8 MB). Peak memory consumption was 25.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 95.53 ms. Allocated memory is still 207.1 MB. Free memory was 177.1 MB in the beginning and 173.0 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1232.29 ms. Allocated memory was 207.1 MB in the beginning and 234.9 MB in the end (delta: 27.8 MB). Free memory was 173.0 MB in the beginning and 176.4 MB in the end (delta: -3.4 MB). Peak memory consumption was 84.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 41038.38 ms. Allocated memory was 234.9 MB in the beginning and 633.9 MB in the end (delta: 399.0 MB). Free memory was 176.4 MB in the beginning and 406.2 MB in the end (delta: -229.8 MB). Peak memory consumption was 169.2 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: 40.9s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 15.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1263 SDtfs, 1820 SDslu, 1072 SDs, 0 SdLazy, 2697 SolverSat, 599 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 9.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 134 GetRequests, 99 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 5.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1087occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 5 MinimizatonAttempts, 322 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 24.0s InterpolantComputationTime, 990 NumberOfCodeBlocks, 990 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 808 ConstructedInterpolants, 0 QuantifiedInterpolants, 329587 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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...