/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=1000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product08.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 19:07:54,525 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 19:07:54,529 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 19:07:54,554 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 19:07:54,554 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 19:07:54,555 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 19:07:54,557 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 19:07:54,559 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 19:07:54,560 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 19:07:54,561 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 19:07:54,562 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 19:07:54,563 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 19:07:54,563 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 19:07:54,564 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 19:07:54,565 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 19:07:54,567 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 19:07:54,567 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 19:07:54,568 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 19:07:54,570 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 19:07:54,572 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 19:07:54,574 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 19:07:54,575 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 19:07:54,576 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 19:07:54,577 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 19:07:54,580 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 19:07:54,580 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 19:07:54,580 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 19:07:54,581 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 19:07:54,581 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 19:07:54,582 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 19:07:54,583 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 19:07:54,584 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 19:07:54,584 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 19:07:54,585 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 19:07:54,587 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 19:07:54,587 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 19:07:54,588 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 19:07:54,588 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 19:07:54,588 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 19:07:54,589 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 19:07:54,590 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 19:07:54,591 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-24 19:07:54,615 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 19:07:54,615 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 19:07:54,617 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 19:07:54,617 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 19:07:54,617 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 19:07:54,617 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 19:07:54,617 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 19:07:54,618 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 19:07:54,618 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 19:07:54,618 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 19:07:54,618 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 19:07:54,618 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 19:07:54,619 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 19:07:54,619 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 19:07:54,619 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 19:07:54,619 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 19:07:54,619 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 19:07:54,620 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 19:07:54,620 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 19:07:54,620 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 19:07:54,620 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 19:07:54,621 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 19:07:54,621 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 19:07:54,621 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 19:07:54,621 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 19:07:54,621 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 19:07:54,622 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 19:07:54,622 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 19:07:54,622 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 19:07:54,622 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=1000;interpolation-heuristic=SMALLEST;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=1000;interpolation-heuristic=SMALLEST;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=1000;interpolation-heuristic=SMALLEST;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=1000;interpolation-heuristic=SMALLEST;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=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; [2020-09-24 19:07:55,096 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 19:07:55,114 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 19:07:55,118 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 19:07:55,120 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 19:07:55,120 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 19:07:55,122 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product08.cil.c [2020-09-24 19:07:55,208 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/de2142db8/155831371e944d3092d36e2f5a66ccd0/FLAGafc899f4e [2020-09-24 19:07:55,797 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 19:07:55,799 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product08.cil.c [2020-09-24 19:07:55,813 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/de2142db8/155831371e944d3092d36e2f5a66ccd0/FLAGafc899f4e [2020-09-24 19:07:56,069 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/de2142db8/155831371e944d3092d36e2f5a66ccd0 [2020-09-24 19:07:56,082 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 19:07:56,089 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 19:07:56,090 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 19:07:56,090 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 19:07:56,096 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 19:07:56,097 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 07:07:56" (1/1) ... [2020-09-24 19:07:56,102 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1cfafcce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:07:56, skipping insertion in model container [2020-09-24 19:07:56,102 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 07:07:56" (1/1) ... [2020-09-24 19:07:56,112 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 19:07:56,189 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 19:07:56,551 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 19:07:56,577 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 19:07:56,780 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 19:07:56,814 INFO L208 MainTranslator]: Completed translation [2020-09-24 19:07:56,815 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:07:56 WrapperNode [2020-09-24 19:07:56,815 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 19:07:56,816 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 19:07:56,816 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 19:07:56,816 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 19:07:56,833 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:07:56" (1/1) ... [2020-09-24 19:07:56,834 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:07:56" (1/1) ... [2020-09-24 19:07:56,854 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:07:56" (1/1) ... [2020-09-24 19:07:56,854 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:07:56" (1/1) ... [2020-09-24 19:07:56,883 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:07:56" (1/1) ... [2020-09-24 19:07:56,894 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:07:56" (1/1) ... [2020-09-24 19:07:56,899 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:07:56" (1/1) ... [2020-09-24 19:07:56,908 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 19:07:56,909 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 19:07:56,909 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 19:07:56,909 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 19:07:56,912 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:07:56" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 19:07:56,987 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 19:07:56,987 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 19:07:56,987 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 19:07:56,988 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-24 19:07:56,988 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 19:07:56,988 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 19:07:56,988 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 19:07:56,988 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 19:07:56,988 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 19:07:56,989 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 19:07:56,989 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 19:07:56,989 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 19:07:56,989 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 19:07:56,989 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 19:07:56,990 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 19:07:56,990 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 19:07:56,990 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 19:07:56,991 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 19:07:56,991 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 19:07:56,991 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 19:07:56,992 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 19:07:56,992 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 19:07:56,992 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 19:07:56,992 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 19:07:56,992 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 19:07:56,993 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 19:07:56,993 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-24 19:07:56,993 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-24 19:07:56,993 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 19:07:56,994 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 19:07:56,995 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 19:07:56,995 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 19:07:56,996 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 19:07:56,996 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 19:07:56,996 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 19:07:56,996 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 19:07:56,996 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 19:07:56,996 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 19:07:56,996 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 19:07:56,996 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 19:07:56,996 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 19:07:56,997 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 19:07:56,997 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 19:07:56,997 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 19:07:56,997 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-24 19:07:56,997 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 19:07:56,997 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 19:07:56,997 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 19:07:56,997 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 19:07:56,998 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 19:07:56,998 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 19:07:56,998 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 19:07:56,998 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 19:07:56,998 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 19:07:56,999 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 19:07:56,999 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 19:07:56,999 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 19:07:56,999 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 19:07:56,999 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 19:07:56,999 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 19:07:56,999 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 19:07:56,999 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 19:07:57,000 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 19:07:57,000 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 19:07:57,000 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 19:07:57,000 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 19:07:57,000 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-24 19:07:57,000 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-24 19:07:57,000 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 19:07:57,000 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 19:07:57,001 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 19:07:57,001 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 19:07:57,002 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 19:07:57,002 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 19:07:57,002 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 19:07:57,002 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 19:07:57,002 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 19:07:57,003 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 19:07:57,003 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 19:07:57,003 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 19:07:57,003 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 19:07:57,003 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 19:07:57,003 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 19:07:57,004 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 19:07:57,004 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 19:07:57,004 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 19:07:57,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 19:07:57,004 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 19:07:58,076 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 19:07:58,077 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 19:07:58,083 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 07:07:58 BoogieIcfgContainer [2020-09-24 19:07:58,084 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 19:07:58,085 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 19:07:58,085 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 19:07:58,088 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 19:07:58,089 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 07:07:56" (1/3) ... [2020-09-24 19:07:58,089 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d691736 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 07:07:58, skipping insertion in model container [2020-09-24 19:07:58,090 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:07:56" (2/3) ... [2020-09-24 19:07:58,090 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d691736 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 07:07:58, skipping insertion in model container [2020-09-24 19:07:58,090 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 07:07:58" (3/3) ... [2020-09-24 19:07:58,093 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product08.cil.c [2020-09-24 19:07:58,104 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 19:07:58,115 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 19:07:58,134 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 19:07:58,166 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 19:07:58,167 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 19:07:58,167 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 19:07:58,167 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 19:07:58,167 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 19:07:58,167 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 19:07:58,168 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 19:07:58,168 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 19:07:58,195 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states. [2020-09-24 19:07:58,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-24 19:07:58,213 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:07:58,215 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:07:58,215 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:07:58,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:07:58,222 INFO L82 PathProgramCache]: Analyzing trace with hash -1628156155, now seen corresponding path program 1 times [2020-09-24 19:07:58,232 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:07:58,233 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1350205234] [2020-09-24 19:07:58,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:07:58,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:58,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:58,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:59,624 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:59,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-24 19:07:59,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:07:59,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1054 [2020-09-24 19:07:59,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:59,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:59,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-24 19:07:59,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:59,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 19:08:00,000 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 19:08:00,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:08:00,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:00,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:00,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:00,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 19:08:00,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:08:00,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 160 [2020-09-24 19:08:00,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:00,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:08:00,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:08:00,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:08:00,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 10 [2020-09-24 19:08:00,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 19:08:00,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:00,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:00,289 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:00,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:08:00,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:08:00,290 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:08:00,290 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:00,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:08:00,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:08:00,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:08:00,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:08:00,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 19:08:00,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:00,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:00,299 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:00,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:08:00,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:08:00,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:08:00,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:00,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:08:00,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:08:00,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:08:00,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:08:00,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 19:08:00,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:00,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:00,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:00,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:08:00,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:08:00,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:08:00,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:00,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:08:00,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:08:00,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:08:00,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:08:00,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 19:08:00,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:00,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:00,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:00,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:08:00,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:08:00,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:08:00,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:00,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:08:00,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:08:00,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:08:00,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:08:00,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 19:08:00,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:00,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:00,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:00,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:08:00,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:08:00,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-24 19:08:00,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:00,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:08:00,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:08:00,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:08:00,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:08:00,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 19:08:00,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:00,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:00,388 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:00,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:08:00,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:08:00,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 19:08:00,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:00,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:08:00,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:08:00,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:08:00,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:08:00,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-24 19:08:00,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:00,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:00,404 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:00,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:08:00,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:08:00,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:08:00,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:00,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:08:00,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:08:00,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:08:00,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:08:00,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:08:00,445 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1350205234] [2020-09-24 19:08:00,447 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:08:00,447 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 19:08:00,448 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834686925] [2020-09-24 19:08:00,458 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 19:08:00,459 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:08:00,476 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 19:08:00,477 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 19:08:00,479 INFO L87 Difference]: Start difference. First operand 285 states. Second operand 3 states. [2020-09-24 19:08:01,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:08:01,748 INFO L93 Difference]: Finished difference Result 436 states and 524 transitions. [2020-09-24 19:08:01,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 19:08:01,757 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-09-24 19:08:01,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:08:01,778 INFO L225 Difference]: With dead ends: 436 [2020-09-24 19:08:01,778 INFO L226 Difference]: Without dead ends: 276 [2020-09-24 19:08:01,784 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 19:08:01,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2020-09-24 19:08:01,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 234. [2020-09-24 19:08:01,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 234 states. [2020-09-24 19:08:01,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 254 transitions. [2020-09-24 19:08:01,891 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 254 transitions. Word has length 153 [2020-09-24 19:08:01,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:08:01,892 INFO L479 AbstractCegarLoop]: Abstraction has 234 states and 254 transitions. [2020-09-24 19:08:01,892 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 19:08:01,892 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 254 transitions. [2020-09-24 19:08:01,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-09-24 19:08:01,897 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:08:01,898 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:08:01,898 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 19:08:01,898 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:08:01,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:08:01,899 INFO L82 PathProgramCache]: Analyzing trace with hash -1901557840, now seen corresponding path program 1 times [2020-09-24 19:08:01,899 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:08:01,900 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [361666456] [2020-09-24 19:08:01,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:08:01,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:02,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:02,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:03,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:03,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-24 19:08:03,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:08:03,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1047 [2020-09-24 19:08:03,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:03,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:08:03,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-24 19:08:03,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 19:08:03,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:08:03,403 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 19:08:03,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:08:03,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:03,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:03,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:03,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 19:08:03,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:08:03,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 117 [2020-09-24 19:08:03,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:03,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:08:03,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:08:03,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:08:03,535 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:08:03,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 19:08:03,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:03,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:03,582 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:03,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:08:03,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:08:03,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:08:03,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:03,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:08:03,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:08:03,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:08:03,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:08:03,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 19:08:03,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:03,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:03,590 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:03,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:08:03,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:08:03,591 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:08:03,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:03,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:08:03,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:08:03,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:08:03,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:08:03,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 19:08:03,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:03,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:03,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:03,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:08:03,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:08:03,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 19:08:03,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:03,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:08:03,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:08:03,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:08:03,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:08:03,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 19:08:03,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:03,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:03,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:03,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:08:03,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:08:03,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:08:03,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:03,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:08:03,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:08:03,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:08:03,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:08:03,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-09-24 19:08:03,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:03,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:03,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:03,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:08:03,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:08:03,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:08:03,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:03,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:08:03,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:08:03,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:08:03,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:08:03,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-24 19:08:03,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:03,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:03,632 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:03,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:08:03,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:08:03,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:08:03,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:03,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:08:03,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:08:03,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:08:03,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:08:03,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-24 19:08:03,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:03,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:03,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:03,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:08:03,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:08:03,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 19:08:03,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:03,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:08:03,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:08:03,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:08:03,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:08:03,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:08:03,695 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [361666456] [2020-09-24 19:08:03,696 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:08:03,696 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 19:08:03,696 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026541202] [2020-09-24 19:08:03,701 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 19:08:03,702 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:08:03,706 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 19:08:03,706 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 19:08:03,706 INFO L87 Difference]: Start difference. First operand 234 states and 254 transitions. Second operand 4 states. [2020-09-24 19:08:04,428 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:08:05,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:08:05,196 INFO L93 Difference]: Finished difference Result 343 states and 387 transitions. [2020-09-24 19:08:05,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 19:08:05,197 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-09-24 19:08:05,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:08:05,201 INFO L225 Difference]: With dead ends: 343 [2020-09-24 19:08:05,201 INFO L226 Difference]: Without dead ends: 259 [2020-09-24 19:08:05,203 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-24 19:08:05,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2020-09-24 19:08:05,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 224. [2020-09-24 19:08:05,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 224 states. [2020-09-24 19:08:05,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 241 transitions. [2020-09-24 19:08:05,246 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 241 transitions. Word has length 154 [2020-09-24 19:08:05,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:08:05,247 INFO L479 AbstractCegarLoop]: Abstraction has 224 states and 241 transitions. [2020-09-24 19:08:05,247 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 19:08:05,247 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 241 transitions. [2020-09-24 19:08:05,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-09-24 19:08:05,250 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:08:05,250 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:08:05,250 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 19:08:05,251 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:08:05,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:08:05,251 INFO L82 PathProgramCache]: Analyzing trace with hash 189375213, now seen corresponding path program 1 times [2020-09-24 19:08:05,251 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:08:05,252 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1758210280] [2020-09-24 19:08:05,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:08:05,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:05,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:05,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:06,321 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:06,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 200 [2020-09-24 19:08:06,322 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:08:06,322 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1014 [2020-09-24 19:08:06,322 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:06,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:08:06,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-09-24 19:08:06,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:08:06,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:08:06,581 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 19:08:06,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:08:06,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:06,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:06,703 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:06,704 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 19:08:06,704 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:08:06,704 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 113 [2020-09-24 19:08:06,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:06,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:08:06,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:08:06,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:08:06,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:08:06,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 19:08:06,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:06,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:06,747 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:06,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:08:06,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:08:06,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:08:06,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:06,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:08:06,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:08:06,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:08:06,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:08:06,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 19:08:06,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:06,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:06,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:06,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:08:06,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:08:06,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:08:06,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:06,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:08:06,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:08:06,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:08:06,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:08:06,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 19:08:06,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:06,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:06,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:06,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:08:06,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:08:06,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:08:06,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:06,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:08:06,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:08:06,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:08:06,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:08:06,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 19:08:06,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:06,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:06,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:06,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:08:06,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:08:06,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:08:06,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:06,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:08:06,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:08:06,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:08:06,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:08:06,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-24 19:08:06,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:06,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:06,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:06,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:08:06,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:08:06,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:08:06,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:06,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:08:06,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:08:06,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-24 19:08:06,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:08:06,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-24 19:08:06,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:06,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:06,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:06,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:08:06,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:08:06,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:08:06,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:06,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:08:06,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:08:06,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:08:06,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:08:06,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-09-24 19:08:06,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:06,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:06,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:06,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:08:06,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:08:06,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:08:06,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:06,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:08:06,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:08:06,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:08:06,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:08:06,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-09-24 19:08:06,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:06,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:06,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:06,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:08:06,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:08:06,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:08:06,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:06,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:08:06,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:08:06,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:08:06,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:08:06,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:08:06,897 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1758210280] [2020-09-24 19:08:06,897 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:08:06,897 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 19:08:06,898 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429019987] [2020-09-24 19:08:06,898 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 19:08:06,898 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:08:06,899 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 19:08:06,899 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-24 19:08:06,899 INFO L87 Difference]: Start difference. First operand 224 states and 241 transitions. Second operand 5 states. [2020-09-24 19:08:07,321 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 19:08:08,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:08:08,845 INFO L93 Difference]: Finished difference Result 518 states and 604 transitions. [2020-09-24 19:08:08,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 19:08:08,846 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 167 [2020-09-24 19:08:08,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:08:08,851 INFO L225 Difference]: With dead ends: 518 [2020-09-24 19:08:08,851 INFO L226 Difference]: Without dead ends: 404 [2020-09-24 19:08:08,853 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-24 19:08:08,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 404 states. [2020-09-24 19:08:08,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 404 to 328. [2020-09-24 19:08:08,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 328 states. [2020-09-24 19:08:08,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 363 transitions. [2020-09-24 19:08:08,920 INFO L78 Accepts]: Start accepts. Automaton has 328 states and 363 transitions. Word has length 167 [2020-09-24 19:08:08,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:08:08,921 INFO L479 AbstractCegarLoop]: Abstraction has 328 states and 363 transitions. [2020-09-24 19:08:08,921 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 19:08:08,921 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 363 transitions. [2020-09-24 19:08:08,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-09-24 19:08:08,925 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:08:08,925 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:08:08,925 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 19:08:08,926 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:08:08,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:08:08,926 INFO L82 PathProgramCache]: Analyzing trace with hash 1096724522, now seen corresponding path program 1 times [2020-09-24 19:08:08,926 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:08:08,927 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1823116867] [2020-09-24 19:08:08,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:08:08,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:09,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:10,030 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:10,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 205 [2020-09-24 19:08:10,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:08:10,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1049 [2020-09-24 19:08:10,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:10,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-24 19:08:10,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-24 19:08:10,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-09-24 19:08:10,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:08:10,319 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 19:08:10,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:08:10,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:10,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:10,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:10,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 19:08:10,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:08:10,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 234 [2020-09-24 19:08:10,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:10,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:08:10,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:08:10,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-24 19:08:10,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:08:10,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 19:08:10,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:10,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:10,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:10,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:08:10,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:08:10,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:08:10,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:10,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:08:10,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:08:10,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:08:10,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:08:10,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 19:08:10,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:10,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:10,648 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:10,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:08:10,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:08:10,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:08:10,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:10,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:08:10,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:08:10,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:08:10,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:08:10,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 19:08:10,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:10,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:10,661 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:10,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:08:10,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:08:10,662 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 19:08:10,662 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:10,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:08:10,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:08:10,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:08:10,663 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:08:10,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 19:08:10,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:10,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:10,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:10,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:08:10,669 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:08:10,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:08:10,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:10,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:08:10,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:08:10,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:08:10,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:08:10,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-24 19:08:10,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:10,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:10,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:10,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 19:08:10,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:08:10,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:08:10,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:10,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:08:10,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:08:10,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 19:08:10,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:08:10,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-09-24 19:08:10,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:10,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:10,704 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:10,704 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:08:10,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:08:10,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:08:10,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:10,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:08:10,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:08:10,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:08:10,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:08:10,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-09-24 19:08:10,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:10,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:10,717 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:10,717 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:08:10,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:08:10,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 19:08:10,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:10,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:08:10,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:08:10,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:08:10,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:08:10,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-09-24 19:08:10,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:10,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:10,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:10,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:08:10,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:08:10,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:08:10,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:10,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:08:10,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:08:10,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:08:10,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:08:10,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:08:10,784 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1823116867] [2020-09-24 19:08:10,785 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:08:10,785 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 19:08:10,785 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840043993] [2020-09-24 19:08:10,786 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 19:08:10,786 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:08:10,786 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 19:08:10,787 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 19:08:10,787 INFO L87 Difference]: Start difference. First operand 328 states and 363 transitions. Second operand 9 states. [2020-09-24 19:08:11,306 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 19:08:13,100 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 19:08:13,418 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 19:08:13,743 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 19:08:14,095 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 19:08:14,384 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 19:08:14,703 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 19:08:14,980 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 19:08:15,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:08:15,668 INFO L93 Difference]: Finished difference Result 846 states and 1021 transitions. [2020-09-24 19:08:15,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-24 19:08:15,670 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 172 [2020-09-24 19:08:15,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:08:15,676 INFO L225 Difference]: With dead ends: 846 [2020-09-24 19:08:15,676 INFO L226 Difference]: Without dead ends: 628 [2020-09-24 19:08:15,678 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-09-24 19:08:15,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 628 states. [2020-09-24 19:08:15,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 628 to 533. [2020-09-24 19:08:15,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 533 states. [2020-09-24 19:08:15,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 533 states to 533 states and 609 transitions. [2020-09-24 19:08:15,778 INFO L78 Accepts]: Start accepts. Automaton has 533 states and 609 transitions. Word has length 172 [2020-09-24 19:08:15,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:08:15,778 INFO L479 AbstractCegarLoop]: Abstraction has 533 states and 609 transitions. [2020-09-24 19:08:15,779 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 19:08:15,779 INFO L276 IsEmpty]: Start isEmpty. Operand 533 states and 609 transitions. [2020-09-24 19:08:15,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-09-24 19:08:15,782 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:08:15,783 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:08:15,783 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 19:08:15,783 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:08:15,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:08:15,784 INFO L82 PathProgramCache]: Analyzing trace with hash -1457531517, now seen corresponding path program 1 times [2020-09-24 19:08:15,784 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:08:15,784 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [190841819] [2020-09-24 19:08:15,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:08:15,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:15,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:16,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:16,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:16,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 212 [2020-09-24 19:08:16,847 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:08:16,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1012 [2020-09-24 19:08:16,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:16,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 19:08:16,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 150 [2020-09-24 19:08:16,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:08:16,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:08:17,148 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 19:08:17,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:08:17,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:17,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:17,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:17,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 19:08:17,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:08:17,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-09-24 19:08:17,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:17,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:08:17,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:08:17,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:08:17,258 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:08:17,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 19:08:17,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:17,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:17,296 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:17,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:08:17,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:08:17,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:08:17,297 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:17,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:08:17,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:08:17,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:08:17,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:08:17,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 19:08:17,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:17,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:17,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:17,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:08:17,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:08:17,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:08:17,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:17,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:08:17,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:08:17,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:08:17,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:08:17,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 19:08:17,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:17,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:17,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:17,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:08:17,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:08:17,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 19:08:17,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:17,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:08:17,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:08:17,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:08:17,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:08:17,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 19:08:17,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:17,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:17,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:17,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:08:17,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:08:17,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:08:17,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:17,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:08:17,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:08:17,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:08:17,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:08:17,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-24 19:08:17,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:17,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:17,349 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:17,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 19:08:17,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:08:17,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 19:08:17,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:17,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:08:17,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:08:17,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-24 19:08:17,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:08:17,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-24 19:08:17,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:17,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:17,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:17,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 19:08:17,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:08:17,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:08:17,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:17,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:08:17,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-24 19:08:17,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:08:17,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:08:17,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-09-24 19:08:17,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:17,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:17,374 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:17,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:08:17,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:08:17,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:08:17,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:17,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:08:17,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:08:17,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:08:17,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:08:17,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-09-24 19:08:17,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:17,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:17,381 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:17,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:08:17,381 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:08:17,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:08:17,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:17,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:08:17,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:08:17,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:08:17,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:08:17,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2020-09-24 19:08:17,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:17,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:17,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:17,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:08:17,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:08:17,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:08:17,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:17,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:08:17,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:08:17,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:08:17,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:08:17,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:08:17,429 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [190841819] [2020-09-24 19:08:17,430 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:08:17,430 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 19:08:17,430 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420370176] [2020-09-24 19:08:17,431 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 19:08:17,431 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:08:17,431 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 19:08:17,432 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-24 19:08:17,432 INFO L87 Difference]: Start difference. First operand 533 states and 609 transitions. Second operand 6 states. [2020-09-24 19:08:17,853 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 19:08:18,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:08:18,834 INFO L93 Difference]: Finished difference Result 917 states and 1095 transitions. [2020-09-24 19:08:18,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-24 19:08:18,835 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 177 [2020-09-24 19:08:18,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:08:18,839 INFO L225 Difference]: With dead ends: 917 [2020-09-24 19:08:18,840 INFO L226 Difference]: Without dead ends: 494 [2020-09-24 19:08:18,842 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-24 19:08:18,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 494 states. [2020-09-24 19:08:18,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 494 to 421. [2020-09-24 19:08:18,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 421 states. [2020-09-24 19:08:18,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 454 transitions. [2020-09-24 19:08:18,919 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 454 transitions. Word has length 177 [2020-09-24 19:08:18,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:08:18,919 INFO L479 AbstractCegarLoop]: Abstraction has 421 states and 454 transitions. [2020-09-24 19:08:18,920 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 19:08:18,920 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 454 transitions. [2020-09-24 19:08:18,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-09-24 19:08:18,923 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:08:18,923 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:08:18,924 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 19:08:18,924 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:08:18,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:08:18,924 INFO L82 PathProgramCache]: Analyzing trace with hash -1990325339, now seen corresponding path program 1 times [2020-09-24 19:08:18,925 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:08:18,925 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1858443006] [2020-09-24 19:08:18,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:08:18,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-24 19:08:18,998 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-24 19:08:18,999 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-24 19:08:19,005 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-24 19:08:19,040 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 07:08:19 BoogieIcfgContainer [2020-09-24 19:08:19,040 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 19:08:19,043 INFO L168 Benchmark]: Toolchain (without parser) took 22958.30 ms. Allocated memory was 138.9 MB in the beginning and 552.6 MB in the end (delta: 413.7 MB). Free memory was 101.0 MB in the beginning and 389.9 MB in the end (delta: -288.8 MB). Peak memory consumption was 124.8 MB. Max. memory is 7.1 GB. [2020-09-24 19:08:19,044 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 138.9 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-24 19:08:19,050 INFO L168 Benchmark]: CACSL2BoogieTranslator took 725.87 ms. Allocated memory was 138.9 MB in the beginning and 202.9 MB in the end (delta: 64.0 MB). Free memory was 100.4 MB in the beginning and 171.5 MB in the end (delta: -71.2 MB). Peak memory consumption was 28.0 MB. Max. memory is 7.1 GB. [2020-09-24 19:08:19,051 INFO L168 Benchmark]: Boogie Preprocessor took 92.42 ms. Allocated memory is still 202.9 MB. Free memory was 171.5 MB in the beginning and 167.3 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. [2020-09-24 19:08:19,051 INFO L168 Benchmark]: RCFGBuilder took 1175.12 ms. Allocated memory was 202.9 MB in the beginning and 235.4 MB in the end (delta: 32.5 MB). Free memory was 167.3 MB in the beginning and 180.1 MB in the end (delta: -12.7 MB). Peak memory consumption was 84.9 MB. Max. memory is 7.1 GB. [2020-09-24 19:08:19,052 INFO L168 Benchmark]: TraceAbstraction took 20955.38 ms. Allocated memory was 235.4 MB in the beginning and 552.6 MB in the end (delta: 317.2 MB). Free memory was 180.1 MB in the beginning and 389.9 MB in the end (delta: -209.8 MB). Peak memory consumption was 107.4 MB. Max. memory is 7.1 GB. [2020-09-24 19:08:19,064 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 138.9 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 725.87 ms. Allocated memory was 138.9 MB in the beginning and 202.9 MB in the end (delta: 64.0 MB). Free memory was 100.4 MB in the beginning and 171.5 MB in the end (delta: -71.2 MB). Peak memory consumption was 28.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 92.42 ms. Allocated memory is still 202.9 MB. Free memory was 171.5 MB in the beginning and 167.3 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1175.12 ms. Allocated memory was 202.9 MB in the beginning and 235.4 MB in the end (delta: 32.5 MB). Free memory was 167.3 MB in the beginning and 180.1 MB in the end (delta: -12.7 MB). Peak memory consumption was 84.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 20955.38 ms. Allocated memory was 235.4 MB in the beginning and 552.6 MB in the end (delta: 317.2 MB). Free memory was 180.1 MB in the beginning and 389.9 MB in the end (delta: -209.8 MB). Peak memory consumption was 107.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 532]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L247] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L448] int waterLevel = 1; [L449] int methaneLevelCritical = 0; [L613] int pumpRunning = 0; [L614] int systemActive = 1; [L807] int cleanupTimeShifts = 4; [L880] int retValue_acc ; [L881] int tmp ; [L885] FCALL select_helpers() [L886] FCALL select_features() [L887] CALL, EXPR valid_product() [L798] int retValue_acc ; [L801] retValue_acc = 1 [L802] return (retValue_acc); [L887] RET, EXPR valid_product() [L887] tmp = valid_product() [L889] COND TRUE \read(tmp) [L891] FCALL setup() [L892] CALL runTest() [L874] CALL test() [L542] int splverifierCounter ; [L543] int tmp ; [L544] int tmp___0 ; [L545] int tmp___1 ; [L546] int tmp___2 ; [L549] splverifierCounter = 0 [L551] COND TRUE 1 [L553] COND TRUE splverifierCounter < 4 [L559] tmp = __VERIFIER_nondet_int() [L561] COND TRUE \read(tmp) [L563] CALL waterRise() [L466] COND TRUE waterLevel < 2 [L467] waterLevel = waterLevel + 1 [L563] RET waterRise() [L569] tmp___0 = __VERIFIER_nondet_int() [L571] COND FALSE !(\read(tmp___0)) [L579] tmp___2 = __VERIFIER_nondet_int() [L581] COND FALSE !(\read(tmp___2)) [L587] tmp___1 = __VERIFIER_nondet_int() [L589] COND TRUE \read(tmp___1) [L591] CALL stopSystem() [L749] COND FALSE !(\read(pumpRunning)) [L756] systemActive = 0 [L591] RET stopSystem() [L598] CALL timeShift() [L620] COND FALSE !(\read(pumpRunning)) [L627] COND FALSE !(\read(systemActive)) [L635] CALL __utac_acc__Specification3_spec__1() [L45] int tmp ; [L46] int tmp___0 ; [L47] int tmp___1 ; [L51] CALL, EXPR isMethaneLevelCritical() [L487] int retValue_acc ; [L490] retValue_acc = methaneLevelCritical [L491] return (retValue_acc); [L51] RET, EXPR isMethaneLevelCritical() [L51] tmp = isMethaneLevelCritical() [L53] COND FALSE !(\read(tmp)) [L57] CALL, EXPR getWaterLevel() [L519] int retValue_acc ; [L522] retValue_acc = waterLevel [L523] return (retValue_acc); [L57] RET, EXPR getWaterLevel() [L57] tmp___0 = getWaterLevel() [L59] COND TRUE tmp___0 == 2 [L61] CALL, EXPR isPumpRunning() [L701] int retValue_acc ; [L704] retValue_acc = pumpRunning [L705] return (retValue_acc); [L61] RET, EXPR isPumpRunning() [L61] tmp___1 = isPumpRunning() [L63] COND FALSE !(\read(tmp___1)) [L67] CALL __automaton_fail() [L532] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 37 procedures, 600 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 20.8s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 11.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1096 SDtfs, 1487 SDslu, 999 SDs, 0 SdLazy, 2149 SolverSat, 473 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 135 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 4.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=533occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 5 MinimizatonAttempts, 321 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 8.3s InterpolantComputationTime, 1000 NumberOfCodeBlocks, 1000 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 818 ConstructedInterpolants, 0 QuantifiedInterpolants, 312666 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...