/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 SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=BIGGEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product32.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-12 17:57:45,493 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-12 17:57:45,497 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-12 17:57:45,537 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-12 17:57:45,538 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-12 17:57:45,546 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-12 17:57:45,548 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-12 17:57:45,551 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-12 17:57:45,554 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-12 17:57:45,557 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-12 17:57:45,558 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-12 17:57:45,559 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-12 17:57:45,560 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-12 17:57:45,563 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-12 17:57:45,565 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-12 17:57:45,567 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-12 17:57:45,569 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-12 17:57:45,571 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-12 17:57:45,573 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-12 17:57:45,581 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-12 17:57:45,585 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-12 17:57:45,586 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-12 17:57:45,587 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-12 17:57:45,587 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-12 17:57:45,599 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-12 17:57:45,600 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-12 17:57:45,602 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-12 17:57:45,605 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-12 17:57:45,606 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-12 17:57:45,610 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-12 17:57:45,610 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-12 17:57:45,611 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-12 17:57:45,612 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-12 17:57:45,615 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-12 17:57:45,616 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-12 17:57:45,616 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-12 17:57:45,617 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-12 17:57:45,617 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-12 17:57:45,619 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-12 17:57:45,621 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-12 17:57:45,621 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-12 17:57:45,622 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-12 17:57:45,654 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-12 17:57:45,654 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-12 17:57:45,655 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-12 17:57:45,655 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-12 17:57:45,656 INFO L138 SettingsManager]: * Use SBE=true [2020-10-12 17:57:45,656 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-12 17:57:45,656 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-12 17:57:45,656 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-12 17:57:45,657 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-12 17:57:45,657 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-12 17:57:45,657 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-12 17:57:45,657 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-12 17:57:45,657 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-12 17:57:45,658 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-12 17:57:45,658 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-12 17:57:45,658 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-12 17:57:45,658 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-12 17:57:45,658 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-12 17:57:45,659 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-12 17:57:45,659 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-12 17:57:45,659 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-12 17:57:45,659 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 17:57:45,659 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-12 17:57:45,660 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-12 17:57:45,660 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-12 17:57:45,660 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-12 17:57:45,660 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-12 17:57:45,660 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-12 17:57:45,661 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-12 17:57:45,661 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 -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; [2020-10-12 17:57:45,968 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-12 17:57:45,981 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-12 17:57:45,985 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-12 17:57:45,987 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-12 17:57:45,987 INFO L275 PluginConnector]: CDTParser initialized [2020-10-12 17:57:45,988 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product32.cil.c [2020-10-12 17:57:46,065 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/fb033a0f3/68ae1ac6b1d547ef9110e28598644269/FLAG33bbc08cb [2020-10-12 17:57:46,608 INFO L306 CDTParser]: Found 1 translation units. [2020-10-12 17:57:46,609 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product32.cil.c [2020-10-12 17:57:46,623 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/fb033a0f3/68ae1ac6b1d547ef9110e28598644269/FLAG33bbc08cb [2020-10-12 17:57:46,933 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/fb033a0f3/68ae1ac6b1d547ef9110e28598644269 [2020-10-12 17:57:46,944 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-12 17:57:46,946 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-12 17:57:46,951 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-12 17:57:46,952 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-12 17:57:46,955 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-12 17:57:46,956 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 05:57:46" (1/1) ... [2020-10-12 17:57:46,959 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2830e110 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:57:46, skipping insertion in model container [2020-10-12 17:57:46,960 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 05:57:46" (1/1) ... [2020-10-12 17:57:46,969 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-12 17:57:47,041 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-12 17:57:47,364 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 17:57:47,378 INFO L203 MainTranslator]: Completed pre-run [2020-10-12 17:57:47,578 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 17:57:47,617 INFO L208 MainTranslator]: Completed translation [2020-10-12 17:57:47,617 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:57:47 WrapperNode [2020-10-12 17:57:47,617 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-12 17:57:47,618 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-12 17:57:47,618 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-12 17:57:47,618 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-12 17:57:47,630 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:57:47" (1/1) ... [2020-10-12 17:57:47,630 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:57:47" (1/1) ... [2020-10-12 17:57:47,650 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:57:47" (1/1) ... [2020-10-12 17:57:47,650 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:57:47" (1/1) ... [2020-10-12 17:57:47,683 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:57:47" (1/1) ... [2020-10-12 17:57:47,703 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:57:47" (1/1) ... [2020-10-12 17:57:47,716 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:57:47" (1/1) ... [2020-10-12 17:57:47,733 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-12 17:57:47,733 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-12 17:57:47,733 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-12 17:57:47,734 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-12 17:57:47,734 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:57:47" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 17:57:47,817 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-12 17:57:47,817 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-12 17:57:47,817 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-12 17:57:47,817 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-12 17:57:47,818 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-12 17:57:47,818 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-12 17:57:47,818 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-12 17:57:47,819 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-12 17:57:47,819 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-12 17:57:47,819 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-12 17:57:47,819 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-12 17:57:47,820 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-10-12 17:57:47,820 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-10-12 17:57:47,820 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-12 17:57:47,820 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-10-12 17:57:47,821 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-12 17:57:47,821 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-12 17:57:47,821 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-12 17:57:47,822 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-12 17:57:47,822 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-12 17:57:47,822 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-10-12 17:57:47,822 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-10-12 17:57:47,823 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-10-12 17:57:47,823 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-12 17:57:47,823 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-12 17:57:47,824 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-12 17:57:47,824 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-12 17:57:47,824 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-12 17:57:47,824 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-12 17:57:47,825 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-10-12 17:57:47,825 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-12 17:57:47,825 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-12 17:57:47,825 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-12 17:57:47,825 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-12 17:57:47,825 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-12 17:57:47,825 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-12 17:57:47,826 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-12 17:57:47,826 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-12 17:57:47,826 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-12 17:57:47,826 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-12 17:57:47,826 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-10-12 17:57:47,826 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-12 17:57:47,826 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-12 17:57:47,827 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-12 17:57:47,827 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-12 17:57:47,827 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-12 17:57:47,827 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-12 17:57:47,827 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-12 17:57:47,827 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-12 17:57:47,827 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-12 17:57:47,828 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-12 17:57:47,828 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-12 17:57:47,828 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-12 17:57:47,829 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-12 17:57:47,829 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-12 17:57:47,829 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-12 17:57:47,829 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-12 17:57:47,829 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-12 17:57:47,829 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-12 17:57:47,830 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-12 17:57:47,830 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-12 17:57:47,830 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-12 17:57:47,830 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-12 17:57:47,830 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-10-12 17:57:47,831 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-10-12 17:57:47,831 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-12 17:57:47,831 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-12 17:57:47,831 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-12 17:57:47,831 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-12 17:57:47,832 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-12 17:57:47,832 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-12 17:57:47,833 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-10-12 17:57:47,834 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-12 17:57:47,834 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-12 17:57:47,834 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-12 17:57:47,834 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-12 17:57:47,835 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-10-12 17:57:47,835 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-12 17:57:47,835 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-10-12 17:57:47,836 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-10-12 17:57:47,836 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-10-12 17:57:47,836 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-12 17:57:47,837 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-10-12 17:57:47,837 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-12 17:57:47,837 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-12 17:57:47,837 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-12 17:57:47,838 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-12 17:57:47,838 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-12 17:57:47,838 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-12 17:57:47,838 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-12 17:57:47,838 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-12 17:57:47,838 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-12 17:57:47,839 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-12 17:57:47,839 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-12 17:57:47,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-12 17:57:47,839 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-12 17:57:48,884 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-12 17:57:48,884 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-12 17:57:48,893 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:57:48 BoogieIcfgContainer [2020-10-12 17:57:48,894 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-12 17:57:48,897 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-12 17:57:48,897 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-12 17:57:48,900 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-12 17:57:48,901 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 05:57:46" (1/3) ... [2020-10-12 17:57:48,902 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63e8a957 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 05:57:48, skipping insertion in model container [2020-10-12 17:57:48,902 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:57:47" (2/3) ... [2020-10-12 17:57:48,903 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63e8a957 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 05:57:48, skipping insertion in model container [2020-10-12 17:57:48,903 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:57:48" (3/3) ... [2020-10-12 17:57:48,905 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product32.cil.c [2020-10-12 17:57:48,916 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-12 17:57:48,925 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-12 17:57:48,939 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-12 17:57:48,964 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-12 17:57:48,964 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-12 17:57:48,964 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-12 17:57:48,964 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-12 17:57:48,964 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-12 17:57:48,965 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-12 17:57:48,965 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-12 17:57:48,965 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-12 17:57:48,988 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states. [2020-10-12 17:57:48,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-10-12 17:57:48,999 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 17:57:49,001 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] [2020-10-12 17:57:49,001 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 17:57:49,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 17:57:49,008 INFO L82 PathProgramCache]: Analyzing trace with hash 628645976, now seen corresponding path program 1 times [2020-10-12 17:57:49,017 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 17:57:49,018 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [177500126] [2020-10-12 17:57:49,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 17:57:49,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:57:49,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:57:49,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:57:50,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:57:51,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:57:51,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-12 17:57:51,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 17:57:51,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2184 [2020-10-12 17:57:51,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:57:51,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-12 17:57:51,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 17:57:51,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-12 17:57:51,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-12 17:57:51,906 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-12 17:57:51,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 17:57:51,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:57:51,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:57:52,046 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:57:52,046 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:57:52,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:57:52,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-10-12 17:57:52,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:57:52,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 17:57:52,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:57:52,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 17:57:52,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:57:52,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 17:57:52,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:57:52,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:57:52,092 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:57:52,092 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 17:57:52,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:57:52,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 17:57:52,093 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:57:52,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 17:57:52,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:57:52,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 17:57:52,093 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:57:52,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-12 17:57:52,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:57:52,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:57:52,105 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:57:52,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 17:57:52,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:57:52,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 17:57:52,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:57:52,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 17:57:52,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:57:52,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 17:57:52,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 17:57:52,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 17:57:52,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:57:52,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:57:52,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:57:52,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:57:52,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:57:52,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 17:57:52,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:57:52,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 17:57:52,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:57:52,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 17:57:52,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:57:52,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-12 17:57:52,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:57:52,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:57:52,129 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:57:52,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 17:57:52,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:57:52,130 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 17:57:52,130 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:57:52,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 17:57:52,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:57:52,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 17:57:52,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 17:57:52,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-12 17:57:52,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:57:52,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:57:52,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:57:52,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:57:52,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:57:52,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 17:57:52,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:57:52,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 17:57:52,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:57:52,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 17:57:52,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 17:57:52,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-12 17:57:52,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:57:52,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:57:52,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:57:52,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:57:52,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:57:52,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 17:57:52,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:57:52,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 17:57:52,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:57:52,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 17:57:52,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:57:52,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-12 17:57:52,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:57:52,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:57:52,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:57:52,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:57:52,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:57:52,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 17:57:52,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:57:52,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 17:57:52,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 17:57:52,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 17:57:52,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 17:57:52,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 17:57:52,204 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [177500126] [2020-10-12 17:57:52,207 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 17:57:52,207 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-12 17:57:52,208 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714534289] [2020-10-12 17:57:52,214 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 17:57:52,215 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 17:57:52,229 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 17:57:52,230 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-12 17:57:52,232 INFO L87 Difference]: Start difference. First operand 186 states. Second operand 7 states. [2020-10-12 17:57:52,771 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-12 17:57:54,245 WARN L193 SmtUtils]: Spent 454.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 190 [2020-10-12 17:57:54,657 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-12 17:57:54,966 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-12 17:57:55,263 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-12 17:57:55,715 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-12 17:57:56,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 17:57:56,918 INFO L93 Difference]: Finished difference Result 445 states and 601 transitions. [2020-10-12 17:57:56,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 17:57:56,921 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 52 [2020-10-12 17:57:56,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 17:57:56,937 INFO L225 Difference]: With dead ends: 445 [2020-10-12 17:57:56,937 INFO L226 Difference]: Without dead ends: 288 [2020-10-12 17:57:56,942 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2020-10-12 17:57:56,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2020-10-12 17:57:57,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 246. [2020-10-12 17:57:57,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 246 states. [2020-10-12 17:57:57,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 304 transitions. [2020-10-12 17:57:57,077 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 304 transitions. Word has length 52 [2020-10-12 17:57:57,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 17:57:57,078 INFO L479 AbstractCegarLoop]: Abstraction has 246 states and 304 transitions. [2020-10-12 17:57:57,078 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 17:57:57,078 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 304 transitions. [2020-10-12 17:57:57,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-10-12 17:57:57,085 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 17:57:57,085 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] [2020-10-12 17:57:57,085 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-12 17:57:57,085 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 17:57:57,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 17:57:57,086 INFO L82 PathProgramCache]: Analyzing trace with hash 1519115254, now seen corresponding path program 1 times [2020-10-12 17:57:57,086 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 17:57:57,086 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [851821167] [2020-10-12 17:57:57,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 17:57:57,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:57:57,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:57:57,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:57:57,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:57:58,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:57:59,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:58:02,121 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:58:02,121 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-12 17:58:02,121 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 17:58:02,121 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-12 17:58:02,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:58:02,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-12 17:58:02,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 17:58:02,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-12 17:58:02,122 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:58:02,418 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-12 17:58:02,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 17:58:02,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:58:02,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:58:02,497 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:58:02,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:58:02,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:58:02,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-12 17:58:02,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:58:02,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 17:58:02,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:58:02,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 17:58:02,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:58:02,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 17:58:02,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:58:02,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:58:02,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:58:02,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 17:58:02,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:58:02,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 17:58:02,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:58:02,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 17:58:02,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:58:02,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 17:58:02,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:58:02,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-12 17:58:02,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:58:02,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:58:02,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:58:02,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 17:58:02,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:58:02,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 17:58:02,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:58:02,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 17:58:02,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:58:02,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 17:58:02,535 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:58:02,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 17:58:02,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:58:02,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:58:02,541 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:58:02,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:58:02,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:58:02,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 17:58:02,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:58:02,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 17:58:02,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:58:02,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 17:58:02,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 17:58:02,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-12 17:58:02,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:58:02,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:58:02,549 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:58:02,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 17:58:02,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:58:02,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 17:58:02,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:58:02,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 17:58:02,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:58:02,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 17:58:02,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:58:02,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-12 17:58:02,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:58:02,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:58:02,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:58:02,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:58:02,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:58:02,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 17:58:02,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:58:02,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 17:58:02,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 17:58:02,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 17:58:02,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:58:02,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-12 17:58:02,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:58:02,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:58:02,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:58:02,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:58:02,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:58:02,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 17:58:02,624 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:58:02,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 17:58:02,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:58:02,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 17:58:02,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:58:02,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-12 17:58:02,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:58:02,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:58:02,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:58:02,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:58:02,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:58:02,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 17:58:02,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:58:02,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 17:58:02,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:58:02,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 17:58:02,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:58:02,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-12 17:58:02,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:58:02,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:58:02,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:58:02,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:58:02,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:58:02,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 17:58:02,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:58:02,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 17:58:02,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 17:58:02,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 17:58:02,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:58:02,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 17:58:02,664 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [851821167] [2020-10-12 17:58:02,664 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 17:58:02,665 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-12 17:58:02,665 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986137289] [2020-10-12 17:58:02,667 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-12 17:58:02,667 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 17:58:02,667 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-12 17:58:02,668 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-10-12 17:58:02,668 INFO L87 Difference]: Start difference. First operand 246 states and 304 transitions. Second operand 10 states. [2020-10-12 17:58:03,165 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-12 17:58:03,927 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-12 17:58:04,769 WARN L193 SmtUtils]: Spent 447.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 187 [2020-10-12 17:58:05,091 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-12 17:58:05,641 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-12 17:58:06,058 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-12 17:58:06,348 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-12 17:58:06,697 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-12 17:58:07,438 WARN L193 SmtUtils]: Spent 435.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 189 [2020-10-12 17:58:10,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 17:58:10,158 INFO L93 Difference]: Finished difference Result 763 states and 1022 transitions. [2020-10-12 17:58:10,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-12 17:58:10,158 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 57 [2020-10-12 17:58:10,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 17:58:10,180 INFO L225 Difference]: With dead ends: 763 [2020-10-12 17:58:10,180 INFO L226 Difference]: Without dead ends: 604 [2020-10-12 17:58:10,184 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=116, Invalid=390, Unknown=0, NotChecked=0, Total=506 [2020-10-12 17:58:10,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 604 states. [2020-10-12 17:58:10,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 604 to 516. [2020-10-12 17:58:10,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 516 states. [2020-10-12 17:58:10,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 516 states to 516 states and 634 transitions. [2020-10-12 17:58:10,333 INFO L78 Accepts]: Start accepts. Automaton has 516 states and 634 transitions. Word has length 57 [2020-10-12 17:58:10,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 17:58:10,333 INFO L479 AbstractCegarLoop]: Abstraction has 516 states and 634 transitions. [2020-10-12 17:58:10,334 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-12 17:58:10,334 INFO L276 IsEmpty]: Start isEmpty. Operand 516 states and 634 transitions. [2020-10-12 17:58:10,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-10-12 17:58:10,339 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 17:58:10,339 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] [2020-10-12 17:58:10,339 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-12 17:58:10,340 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 17:58:10,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 17:58:10,340 INFO L82 PathProgramCache]: Analyzing trace with hash -2005034546, now seen corresponding path program 1 times [2020-10-12 17:58:10,340 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 17:58:10,341 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [360850548] [2020-10-12 17:58:10,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 17:58:10,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:58:10,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:58:10,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:58:11,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:58:13,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:58:15,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:58:15,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-10-12 17:58:15,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 17:58:15,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-12 17:58:15,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:58:15,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 17:58:15,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 49 [2020-10-12 17:58:15,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-12 17:58:15,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:58:15,684 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-12 17:58:15,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 17:58:15,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:58:15,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:58:15,736 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:58:15,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:58:15,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:58:15,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-12 17:58:15,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:58:15,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 17:58:15,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:58:15,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 17:58:15,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 17:58:15,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 17:58:15,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:58:15,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:58:15,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:58:15,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 17:58:15,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:58:15,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 17:58:15,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:58:15,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 17:58:15,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:58:15,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 17:58:15,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 17:58:15,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-12 17:58:15,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:58:15,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:58:15,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:58:15,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 17:58:15,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:58:15,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 17:58:15,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:58:15,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 17:58:15,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:58:15,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 17:58:15,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 17:58:15,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 17:58:15,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:58:15,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:58:15,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:58:15,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:58:15,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:58:15,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 17:58:15,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:58:15,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 17:58:15,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:58:15,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 17:58:15,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 17:58:15,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-12 17:58:15,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:58:15,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:58:15,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:58:15,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 17:58:15,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:58:15,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 17:58:15,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:58:15,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 17:58:15,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:58:15,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 17:58:15,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-12 17:58:15,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-12 17:58:15,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:58:15,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:58:15,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:58:15,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:58:15,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:58:15,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 17:58:15,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:58:15,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 17:58:15,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:58:15,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 17:58:15,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:58:15,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-12 17:58:15,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:58:15,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:58:15,816 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:58:15,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:58:15,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:58:15,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 17:58:15,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:58:15,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 17:58:15,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 17:58:15,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 17:58:15,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:58:15,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-12 17:58:15,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:58:15,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:58:15,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:58:15,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:58:15,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:58:15,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 17:58:15,838 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:58:15,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 17:58:15,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:58:15,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 17:58:15,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:58:15,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-12 17:58:15,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:58:15,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:58:15,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:58:15,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:58:15,844 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:58:15,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 17:58:15,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:58:15,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 17:58:15,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:58:15,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 17:58:15,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:58:15,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-12 17:58:15,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:58:15,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:58:15,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:58:15,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:58:15,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:58:15,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 17:58:15,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:58:15,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 17:58:15,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 17:58:15,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 17:58:15,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 17:58:15,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 17:58:15,870 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [360850548] [2020-10-12 17:58:15,871 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 17:58:15,871 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-12 17:58:15,871 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978884237] [2020-10-12 17:58:15,872 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-12 17:58:15,872 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 17:58:15,872 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-12 17:58:15,872 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-10-12 17:58:15,873 INFO L87 Difference]: Start difference. First operand 516 states and 634 transitions. Second operand 10 states. [2020-10-12 17:58:16,301 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-12 17:58:16,917 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-12 17:58:17,792 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-12 17:58:18,165 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-12 17:58:18,440 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-12 17:58:18,740 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-12 17:58:20,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 17:58:20,451 INFO L93 Difference]: Finished difference Result 916 states and 1222 transitions. [2020-10-12 17:58:20,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-12 17:58:20,453 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 66 [2020-10-12 17:58:20,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 17:58:20,459 INFO L225 Difference]: With dead ends: 916 [2020-10-12 17:58:20,460 INFO L226 Difference]: Without dead ends: 683 [2020-10-12 17:58:20,462 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=91, Invalid=251, Unknown=0, NotChecked=0, Total=342 [2020-10-12 17:58:20,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 683 states. [2020-10-12 17:58:20,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 683 to 580. [2020-10-12 17:58:20,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 580 states. [2020-10-12 17:58:20,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 580 states to 580 states and 706 transitions. [2020-10-12 17:58:20,568 INFO L78 Accepts]: Start accepts. Automaton has 580 states and 706 transitions. Word has length 66 [2020-10-12 17:58:20,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 17:58:20,569 INFO L479 AbstractCegarLoop]: Abstraction has 580 states and 706 transitions. [2020-10-12 17:58:20,569 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-12 17:58:20,569 INFO L276 IsEmpty]: Start isEmpty. Operand 580 states and 706 transitions. [2020-10-12 17:58:20,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-10-12 17:58:20,573 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 17:58:20,573 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] [2020-10-12 17:58:20,573 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-12 17:58:20,573 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 17:58:20,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 17:58:20,574 INFO L82 PathProgramCache]: Analyzing trace with hash 891688456, now seen corresponding path program 1 times [2020-10-12 17:58:20,574 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 17:58:20,574 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [934854258] [2020-10-12 17:58:20,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 17:58:20,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:58:20,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:58:21,018 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:58:21,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 94 [2020-10-12 17:58:21,019 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:58:21,019 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 422 [2020-10-12 17:58:21,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:58:21,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 17:58:21,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 17:58:21,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-10-12 17:58:21,020 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:58:21,249 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-12 17:58:21,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 17:58:21,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:58:21,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:58:21,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:58:21,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:58:21,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:58:21,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-12 17:58:21,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:58:21,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 17:58:21,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:58:21,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 17:58:21,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:58:21,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 17:58:21,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:58:21,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:58:21,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:58:21,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 17:58:21,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:58:21,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 17:58:21,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:58:21,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 17:58:21,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:58:21,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 17:58:21,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:58:21,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-12 17:58:21,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:58:21,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:58:21,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:58:21,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 17:58:21,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:58:21,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 17:58:21,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:58:21,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 17:58:21,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:58:21,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 17:58:21,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:58:21,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 17:58:21,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:58:21,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:58:21,346 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:58:21,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:58:21,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:58:21,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 17:58:21,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:58:21,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 17:58:21,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:58:21,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 17:58:21,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:58:21,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-12 17:58:21,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:58:21,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:58:21,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:58:21,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 17:58:21,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:58:21,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 17:58:21,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:58:21,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 17:58:21,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:58:21,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 17:58:21,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:58:21,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-12 17:58:21,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:58:21,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:58:21,363 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:58:21,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:58:21,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:58:21,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 17:58:21,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:58:21,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 17:58:21,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:58:21,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 17:58:21,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:58:21,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-12 17:58:21,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:58:21,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:58:21,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:58:21,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:58:21,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:58:21,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 17:58:21,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:58:21,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 17:58:21,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 17:58:21,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 17:58:21,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:58:21,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-12 17:58:21,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:58:21,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:58:21,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:58:21,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:58:21,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:58:21,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 17:58:21,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:58:21,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 17:58:21,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 17:58:21,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 17:58:21,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:58:21,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-12 17:58:21,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:58:21,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:58:21,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:58:21,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:58:21,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:58:21,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 17:58:21,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:58:21,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 17:58:21,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 17:58:21,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 17:58:21,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:58:21,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 17:58:21,392 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [934854258] [2020-10-12 17:58:21,392 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 17:58:21,392 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-12 17:58:21,393 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63408485] [2020-10-12 17:58:21,393 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 17:58:21,394 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 17:58:21,394 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 17:58:21,394 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-12 17:58:21,394 INFO L87 Difference]: Start difference. First operand 580 states and 706 transitions. Second operand 5 states. [2020-10-12 17:58:21,828 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-12 17:58:23,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 17:58:23,974 INFO L93 Difference]: Finished difference Result 1818 states and 2277 transitions. [2020-10-12 17:58:23,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-12 17:58:23,974 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 62 [2020-10-12 17:58:23,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 17:58:23,983 INFO L225 Difference]: With dead ends: 1818 [2020-10-12 17:58:23,983 INFO L226 Difference]: Without dead ends: 1262 [2020-10-12 17:58:23,986 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-12 17:58:23,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1262 states. [2020-10-12 17:58:24,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1262 to 1098. [2020-10-12 17:58:24,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1098 states. [2020-10-12 17:58:24,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1098 states to 1098 states and 1348 transitions. [2020-10-12 17:58:24,183 INFO L78 Accepts]: Start accepts. Automaton has 1098 states and 1348 transitions. Word has length 62 [2020-10-12 17:58:24,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 17:58:24,184 INFO L479 AbstractCegarLoop]: Abstraction has 1098 states and 1348 transitions. [2020-10-12 17:58:24,184 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 17:58:24,184 INFO L276 IsEmpty]: Start isEmpty. Operand 1098 states and 1348 transitions. [2020-10-12 17:58:24,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-10-12 17:58:24,189 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 17:58:24,189 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 17:58:24,189 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-12 17:58:24,190 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 17:58:24,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 17:58:24,190 INFO L82 PathProgramCache]: Analyzing trace with hash 1708991285, now seen corresponding path program 1 times [2020-10-12 17:58:24,190 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 17:58:24,191 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2062235089] [2020-10-12 17:58:24,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 17:58:24,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-12 17:58:24,225 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-12 17:58:24,225 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-12 17:58:24,229 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-12 17:58:24,252 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.10 05:58:24 BoogieIcfgContainer [2020-10-12 17:58:24,252 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-12 17:58:24,254 INFO L168 Benchmark]: Toolchain (without parser) took 37308.97 ms. Allocated memory was 138.9 MB in the beginning and 728.8 MB in the end (delta: 589.8 MB). Free memory was 100.8 MB in the beginning and 86.4 MB in the end (delta: 14.4 MB). Peak memory consumption was 604.3 MB. Max. memory is 7.1 GB. [2020-10-12 17:58:24,255 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 138.9 MB. Free memory was 120.5 MB in the beginning and 120.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-12 17:58:24,256 INFO L168 Benchmark]: CACSL2BoogieTranslator took 666.48 ms. Allocated memory was 138.9 MB in the beginning and 202.4 MB in the end (delta: 63.4 MB). Free memory was 100.4 MB in the beginning and 171.2 MB in the end (delta: -70.8 MB). Peak memory consumption was 28.6 MB. Max. memory is 7.1 GB. [2020-10-12 17:58:24,257 INFO L168 Benchmark]: Boogie Preprocessor took 114.73 ms. Allocated memory is still 202.4 MB. Free memory was 171.2 MB in the beginning and 167.0 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. [2020-10-12 17:58:24,258 INFO L168 Benchmark]: RCFGBuilder took 1160.61 ms. Allocated memory was 202.4 MB in the beginning and 233.8 MB in the end (delta: 31.5 MB). Free memory was 167.0 MB in the beginning and 195.5 MB in the end (delta: -28.4 MB). Peak memory consumption was 86.4 MB. Max. memory is 7.1 GB. [2020-10-12 17:58:24,259 INFO L168 Benchmark]: TraceAbstraction took 35355.15 ms. Allocated memory was 233.8 MB in the beginning and 728.8 MB in the end (delta: 494.9 MB). Free memory was 195.5 MB in the beginning and 86.4 MB in the end (delta: 109.1 MB). Peak memory consumption was 604.0 MB. Max. memory is 7.1 GB. [2020-10-12 17:58:24,262 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 138.9 MB. Free memory was 120.5 MB in the beginning and 120.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 666.48 ms. Allocated memory was 138.9 MB in the beginning and 202.4 MB in the end (delta: 63.4 MB). Free memory was 100.4 MB in the beginning and 171.2 MB in the end (delta: -70.8 MB). Peak memory consumption was 28.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 114.73 ms. Allocated memory is still 202.4 MB. Free memory was 171.2 MB in the beginning and 167.0 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1160.61 ms. Allocated memory was 202.4 MB in the beginning and 233.8 MB in the end (delta: 31.5 MB). Free memory was 167.0 MB in the beginning and 195.5 MB in the end (delta: -28.4 MB). Peak memory consumption was 86.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 35355.15 ms. Allocated memory was 233.8 MB in the beginning and 728.8 MB in the end (delta: 494.9 MB). Free memory was 195.5 MB in the beginning and 86.4 MB in the end (delta: 109.1 MB). Peak memory consumption was 604.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 712]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L209] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L489] int pumpRunning = 0; [L490] int systemActive = 1; [L717] int cleanupTimeShifts = 4; [L886] int waterLevel = 1; [L887] int methaneLevelCritical = 0; [L793] int retValue_acc ; [L794] int tmp ; [L798] FCALL select_helpers() [L799] FCALL select_features() [L800] CALL, EXPR valid_product() [L877] int retValue_acc ; [L880] retValue_acc = 1 [L881] return (retValue_acc); [L800] RET, EXPR valid_product() [L800] tmp = valid_product() [L802] COND TRUE \read(tmp) [L804] FCALL setup() [L805] CALL runTest() [L784] CALL test() [L413] int splverifierCounter ; [L414] int tmp ; [L415] int tmp___0 ; [L416] int tmp___1 ; [L417] int tmp___2 ; [L420] splverifierCounter = 0 [L422] COND TRUE 1 [L424] COND TRUE splverifierCounter < 4 [L430] tmp = __VERIFIER_nondet_int() [L432] COND TRUE \read(tmp) [L434] CALL waterRise() [L904] COND TRUE waterLevel < 2 [L905] waterLevel = waterLevel + 1 [L434] RET waterRise() [L440] tmp___0 = __VERIFIER_nondet_int() [L442] COND FALSE !(\read(tmp___0)) [L450] tmp___2 = __VERIFIER_nondet_int() [L452] COND FALSE !(\read(tmp___2)) [L458] tmp___1 = __VERIFIER_nondet_int() [L460] COND TRUE \read(tmp___1) [L462] CALL stopSystem() [L688] COND FALSE !(\read(pumpRunning)) [L695] systemActive = 0 [L462] RET stopSystem() [L469] CALL timeShift() [L497] COND FALSE !(\read(pumpRunning)) [L504] COND FALSE !(\read(systemActive)) [L512] CALL __utac_acc__Specification3_spec__1() [L818] int tmp ; [L819] int tmp___0 ; [L820] int tmp___1 ; [L824] CALL, EXPR isMethaneLevelCritical() [L925] int retValue_acc ; [L928] retValue_acc = methaneLevelCritical [L929] return (retValue_acc); [L824] RET, EXPR isMethaneLevelCritical() [L824] tmp = isMethaneLevelCritical() [L826] COND FALSE !(\read(tmp)) [L830] CALL, EXPR getWaterLevel() [L957] int retValue_acc ; [L960] retValue_acc = waterLevel [L961] return (retValue_acc); [L830] RET, EXPR getWaterLevel() [L830] tmp___0 = getWaterLevel() [L832] COND TRUE tmp___0 == 2 [L834] CALL, EXPR isPumpRunning() [L621] int retValue_acc ; [L624] retValue_acc = pumpRunning [L625] return (retValue_acc); [L834] RET, EXPR isPumpRunning() [L834] tmp___1 = isPumpRunning() [L836] COND FALSE !(\read(tmp___1)) [L840] CALL __automaton_fail() [L712] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 41 procedures, 244 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 35.2s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 19.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 706 SDtfs, 1539 SDslu, 909 SDs, 0 SdLazy, 4595 SolverSat, 1170 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 10.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 142 GetRequests, 87 SyntacticMatches, 1 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 7.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1098occurred 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: 0.5s AutomataMinimizationTime, 4 MinimizatonAttempts, 397 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 14.7s InterpolantComputationTime, 304 NumberOfCodeBlocks, 304 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 233 ConstructedInterpolants, 0 QuantifiedInterpolants, 71512 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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...