/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.3 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product01.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 12:02:56,493 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 12:02:56,497 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 12:02:56,538 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 12:02:56,539 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 12:02:56,550 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 12:02:56,552 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 12:02:56,555 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 12:02:56,558 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 12:02:56,560 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 12:02:56,560 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 12:02:56,562 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 12:02:56,562 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 12:02:56,567 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 12:02:56,569 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 12:02:56,571 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 12:02:56,572 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 12:02:56,574 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 12:02:56,575 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 12:02:56,581 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 12:02:56,585 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 12:02:56,586 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 12:02:56,587 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 12:02:56,587 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 12:02:56,592 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 12:02:56,592 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 12:02:56,592 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 12:02:56,596 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 12:02:56,596 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 12:02:56,597 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 12:02:56,597 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 12:02:56,598 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 12:02:56,599 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 12:02:56,600 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 12:02:56,601 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 12:02:56,601 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 12:02:56,602 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 12:02:56,602 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 12:02:56,602 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 12:02:56,604 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 12:02:56,605 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 12:02:56,606 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 12:02:56,655 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 12:02:56,655 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 12:02:56,657 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 12:02:56,657 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 12:02:56,658 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 12:02:56,658 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 12:02:56,658 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 12:02:56,658 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 12:02:56,659 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 12:02:56,659 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 12:02:56,660 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 12:02:56,660 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 12:02:56,660 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 12:02:56,661 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 12:02:56,661 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 12:02:56,661 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 12:02:56,661 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 12:02:56,662 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 12:02:56,662 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 12:02:56,662 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 12:02:56,662 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 12:02:56,662 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 12:02:56,663 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 12:02:56,663 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 12:02:56,663 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 12:02:56,663 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 12:02:56,663 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 12:02:56,664 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 12:02:56,664 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 12:02:56,664 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; [2020-09-25 12:02:57,102 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 12:02:57,129 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 12:02:57,134 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 12:02:57,135 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 12:02:57,136 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 12:02:57,137 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product01.cil.c [2020-09-25 12:02:57,222 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/060337108/137a4cfefae04d9f8346f26d14f14b76/FLAGe12b3ce14 [2020-09-25 12:02:57,812 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 12:02:57,812 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product01.cil.c [2020-09-25 12:02:57,833 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/060337108/137a4cfefae04d9f8346f26d14f14b76/FLAGe12b3ce14 [2020-09-25 12:02:58,098 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/060337108/137a4cfefae04d9f8346f26d14f14b76 [2020-09-25 12:02:58,114 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 12:02:58,120 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 12:02:58,124 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 12:02:58,125 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 12:02:58,129 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 12:02:58,130 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:02:58" (1/1) ... [2020-09-25 12:02:58,135 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51a556b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:02:58, skipping insertion in model container [2020-09-25 12:02:58,135 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:02:58" (1/1) ... [2020-09-25 12:02:58,146 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 12:02:58,212 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 12:02:58,605 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 12:02:58,623 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 12:02:58,799 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 12:02:58,838 INFO L208 MainTranslator]: Completed translation [2020-09-25 12:02:58,839 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:02:58 WrapperNode [2020-09-25 12:02:58,839 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 12:02:58,840 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 12:02:58,840 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 12:02:58,840 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 12:02:58,858 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:02:58" (1/1) ... [2020-09-25 12:02:58,858 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:02:58" (1/1) ... [2020-09-25 12:02:58,879 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:02:58" (1/1) ... [2020-09-25 12:02:58,880 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:02:58" (1/1) ... [2020-09-25 12:02:58,911 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:02:58" (1/1) ... [2020-09-25 12:02:58,921 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:02:58" (1/1) ... [2020-09-25 12:02:58,926 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:02:58" (1/1) ... [2020-09-25 12:02:58,936 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 12:02:58,937 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 12:02:58,937 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 12:02:58,937 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 12:02:58,939 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:02:58" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 12:02:59,011 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 12:02:59,011 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 12:02:59,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 12:02:59,012 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 12:02:59,012 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 12:02:59,012 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 12:02:59,012 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 12:02:59,013 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 12:02:59,013 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 12:02:59,013 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 12:02:59,013 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 12:02:59,013 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 12:02:59,013 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 12:02:59,014 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 12:02:59,014 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 12:02:59,014 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-25 12:02:59,014 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 12:02:59,014 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 12:02:59,015 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 12:02:59,020 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 12:02:59,020 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 12:02:59,020 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 12:02:59,020 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 12:02:59,020 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 12:02:59,021 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 12:02:59,021 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 12:02:59,021 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 12:02:59,021 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 12:02:59,021 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 12:02:59,022 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 12:02:59,022 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 12:02:59,022 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 12:02:59,022 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 12:02:59,022 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 12:02:59,022 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 12:02:59,023 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 12:02:59,023 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 12:02:59,023 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 12:02:59,023 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 12:02:59,023 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 12:02:59,023 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 12:02:59,023 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 12:02:59,024 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 12:02:59,024 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 12:02:59,024 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 12:02:59,024 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-25 12:02:59,024 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 12:02:59,024 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 12:02:59,025 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 12:02:59,025 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 12:02:59,025 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 12:02:59,025 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 12:02:59,025 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 12:02:59,025 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 12:02:59,026 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 12:02:59,026 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 12:02:59,026 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 12:02:59,026 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 12:02:59,026 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 12:02:59,026 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 12:02:59,027 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 12:02:59,027 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 12:02:59,027 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 12:02:59,027 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 12:02:59,027 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 12:02:59,027 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 12:02:59,027 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 12:02:59,028 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 12:02:59,028 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 12:02:59,028 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 12:02:59,028 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 12:02:59,028 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 12:02:59,028 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 12:02:59,029 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 12:02:59,029 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 12:02:59,029 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 12:02:59,029 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 12:02:59,029 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 12:02:59,029 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 12:02:59,030 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 12:02:59,030 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 12:02:59,030 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 12:03:00,124 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 12:03:00,124 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 12:03:00,131 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:03:00 BoogieIcfgContainer [2020-09-25 12:03:00,131 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 12:03:00,132 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 12:03:00,133 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 12:03:00,136 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 12:03:00,137 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 12:02:58" (1/3) ... [2020-09-25 12:03:00,137 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1abd8f78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:03:00, skipping insertion in model container [2020-09-25 12:03:00,138 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:02:58" (2/3) ... [2020-09-25 12:03:00,138 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1abd8f78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:03:00, skipping insertion in model container [2020-09-25 12:03:00,138 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:03:00" (3/3) ... [2020-09-25 12:03:00,141 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product01.cil.c [2020-09-25 12:03:00,152 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 12:03:00,164 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 12:03:00,190 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 12:03:00,224 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 12:03:00,225 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 12:03:00,225 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 12:03:00,225 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 12:03:00,225 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 12:03:00,225 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 12:03:00,226 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 12:03:00,226 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 12:03:00,255 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states. [2020-09-25 12:03:00,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-25 12:03:00,273 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:03:00,275 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:03:00,275 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:03:00,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:03:00,284 INFO L82 PathProgramCache]: Analyzing trace with hash -1134805363, now seen corresponding path program 1 times [2020-09-25 12:03:00,296 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:03:00,296 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1838694656] [2020-09-25 12:03:00,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:03:00,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:03:00,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:03:00,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:03:01,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:03:04,623 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:03:04,623 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-25 12:03:04,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 12:03:04,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3992 [2020-09-25 12:03:04,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:03:04,628 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:03:04,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 12:03:04,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-25 12:03:04,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-09-25 12:03:04,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 8 [2020-09-25 12:03:05,095 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 12:03:05,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:03:05,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:03:05,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:03:05,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:03:05,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 12:03:05,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:03:05,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 250 [2020-09-25 12:03:05,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:03:05,388 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:03:05,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:03:05,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:03:05,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 12:03:05,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:03:05,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 12:03:05,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:03:05,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:03:05,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:03:05,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:03:05,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:03:05,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 12:03:05,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:03:05,460 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:03:05,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:03:05,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:03:05,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:03:05,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:03:05,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 12:03:05,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:03:05,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:03:05,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:03:05,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:03:05,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:03:05,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 12:03:05,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:03:05,473 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:03:05,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:03:05,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:03:05,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:03:05,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:03:05,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 12:03:05,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:03:05,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:03:05,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:03:05,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:03:05,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:03:05,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 12:03:05,492 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:03:05,492 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:03:05,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:03:05,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:03:05,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 12:03:05,493 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:03:05,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 12:03:05,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:03:05,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:03:05,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:03:05,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:03:05,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:03:05,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:03:05,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:03:05,505 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:03:05,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:03:05,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:03:05,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:03:05,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:03:05,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 12:03:05,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:03:05,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:03:05,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:03:05,516 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:03:05,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:03:05,517 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 12:03:05,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:03:05,517 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:03:05,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:03:05,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:03:05,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 12:03:05,519 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 12:03:05,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 12:03:05,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:03:05,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:03:05,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:03:05,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:03:05,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:03:05,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 12:03:05,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:03:05,536 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:03:05,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 12:03:05,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:03:05,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 12:03:05,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:03:05,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-25 12:03:05,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:03:05,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:03:05,573 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:03:05,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:03:05,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:03:05,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 12:03:05,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:03:05,575 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:03:05,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:03:05,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 12:03:05,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:03:05,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:03:05,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 12:03:05,619 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1838694656] [2020-09-25 12:03:05,622 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:03:05,622 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 12:03:05,623 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696152428] [2020-09-25 12:03:05,633 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 12:03:05,633 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:03:05,675 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 12:03:05,676 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-25 12:03:05,679 INFO L87 Difference]: Start difference. First operand 258 states. Second operand 8 states. [2020-09-25 12:03:06,235 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 12:03:07,632 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 12:03:07,955 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 12:03:08,296 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 12:03:08,612 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 12:03:08,920 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 12:03:09,235 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 12:03:09,537 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 12:03:10,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:03:10,306 INFO L93 Difference]: Finished difference Result 453 states and 557 transitions. [2020-09-25 12:03:10,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 12:03:10,312 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 153 [2020-09-25 12:03:10,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:03:10,331 INFO L225 Difference]: With dead ends: 453 [2020-09-25 12:03:10,331 INFO L226 Difference]: Without dead ends: 314 [2020-09-25 12:03:10,337 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-09-25 12:03:10,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2020-09-25 12:03:10,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 282. [2020-09-25 12:03:10,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 282 states. [2020-09-25 12:03:10,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 317 transitions. [2020-09-25 12:03:10,457 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 317 transitions. Word has length 153 [2020-09-25 12:03:10,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:03:10,458 INFO L479 AbstractCegarLoop]: Abstraction has 282 states and 317 transitions. [2020-09-25 12:03:10,458 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 12:03:10,459 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 317 transitions. [2020-09-25 12:03:10,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2020-09-25 12:03:10,464 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:03:10,465 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:03:10,465 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 12:03:10,465 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:03:10,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:03:10,466 INFO L82 PathProgramCache]: Analyzing trace with hash -777322396, now seen corresponding path program 1 times [2020-09-25 12:03:10,466 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:03:10,466 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [424600261] [2020-09-25 12:03:10,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:03:10,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:03:10,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:03:10,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:03:10,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:03:11,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:03:12,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:03:15,566 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:03:15,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 194 [2020-09-25 12:03:15,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 12:03:15,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5042 [2020-09-25 12:03:15,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:03:15,567 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:03:15,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:03:15,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-25 12:03:15,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-09-25 12:03:15,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:03:15,853 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 12:03:15,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:03:15,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:03:15,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:03:16,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:03:16,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 12:03:16,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:03:16,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 218 [2020-09-25 12:03:16,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:03:16,108 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:03:16,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:03:16,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:03:16,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-25 12:03:16,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:03:16,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 12:03:16,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:03:16,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:03:16,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:03:16,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:03:16,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:03:16,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:03:16,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:03:16,157 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:03:16,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:03:16,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:03:16,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:03:16,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:03:16,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 12:03:16,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:03:16,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:03:16,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:03:16,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:03:16,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:03:16,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 12:03:16,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:03:16,172 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:03:16,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:03:16,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:03:16,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:03:16,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:03:16,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 12:03:16,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:03:16,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:03:16,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:03:16,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:03:16,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:03:16,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 12:03:16,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:03:16,184 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:03:16,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:03:16,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:03:16,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 12:03:16,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:03:16,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 12:03:16,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:03:16,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:03:16,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:03:16,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:03:16,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:03:16,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:03:16,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:03:16,193 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:03:16,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:03:16,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:03:16,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:03:16,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:03:16,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-09-25 12:03:16,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:03:16,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:03:16,217 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:03:16,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 12:03:16,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:03:16,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 12:03:16,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:03:16,218 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:03:16,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:03:16,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:03:16,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 12:03:16,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:03:16,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-25 12:03:16,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:03:16,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:03:16,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:03:16,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:03:16,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:03:16,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:03:16,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:03:16,229 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:03:16,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:03:16,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 12:03:16,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:03:16,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:03:16,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-25 12:03:16,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:03:16,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:03:16,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:03:16,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:03:16,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:03:16,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:03:16,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:03:16,236 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:03:16,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:03:16,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 12:03:16,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:03:16,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 12:03:16,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-25 12:03:16,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:03:16,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:03:16,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:03:16,247 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:03:16,247 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:03:16,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:03:16,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:03:16,247 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:03:16,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:03:16,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 12:03:16,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:03:16,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:03:16,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 12:03:16,290 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [424600261] [2020-09-25 12:03:16,290 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:03:16,290 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 12:03:16,291 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956508667] [2020-09-25 12:03:16,295 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 12:03:16,295 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:03:16,295 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 12:03:16,296 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 12:03:16,296 INFO L87 Difference]: Start difference. First operand 282 states and 317 transitions. Second operand 5 states. [2020-09-25 12:03:16,846 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 12:03:17,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:03:17,553 INFO L93 Difference]: Finished difference Result 482 states and 579 transitions. [2020-09-25 12:03:17,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 12:03:17,554 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 159 [2020-09-25 12:03:17,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:03:17,559 INFO L225 Difference]: With dead ends: 482 [2020-09-25 12:03:17,559 INFO L226 Difference]: Without dead ends: 310 [2020-09-25 12:03:17,562 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 12:03:17,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2020-09-25 12:03:17,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 282. [2020-09-25 12:03:17,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 282 states. [2020-09-25 12:03:17,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 314 transitions. [2020-09-25 12:03:17,612 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 314 transitions. Word has length 159 [2020-09-25 12:03:17,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:03:17,613 INFO L479 AbstractCegarLoop]: Abstraction has 282 states and 314 transitions. [2020-09-25 12:03:17,613 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 12:03:17,613 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 314 transitions. [2020-09-25 12:03:17,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-09-25 12:03:17,617 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:03:17,617 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:03:17,618 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 12:03:17,618 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:03:17,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:03:17,618 INFO L82 PathProgramCache]: Analyzing trace with hash 1613053112, now seen corresponding path program 1 times [2020-09-25 12:03:17,618 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:03:17,619 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1846917127] [2020-09-25 12:03:17,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:03:17,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 12:03:17,679 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 12:03:17,680 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 12:03:17,685 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 12:03:17,711 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 12:03:17 BoogieIcfgContainer [2020-09-25 12:03:17,712 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 12:03:17,714 INFO L168 Benchmark]: Toolchain (without parser) took 19597.78 ms. Allocated memory was 148.9 MB in the beginning and 454.6 MB in the end (delta: 305.7 MB). Free memory was 104.2 MB in the beginning and 141.7 MB in the end (delta: -37.5 MB). Peak memory consumption was 268.2 MB. Max. memory is 7.1 GB. [2020-09-25 12:03:17,715 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 148.9 MB. Free memory was 123.5 MB in the beginning and 123.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-25 12:03:17,716 INFO L168 Benchmark]: CACSL2BoogieTranslator took 715.54 ms. Allocated memory was 148.9 MB in the beginning and 206.6 MB in the end (delta: 57.7 MB). Free memory was 103.6 MB in the beginning and 177.6 MB in the end (delta: -74.0 MB). Peak memory consumption was 25.0 MB. Max. memory is 7.1 GB. [2020-09-25 12:03:17,717 INFO L168 Benchmark]: Boogie Preprocessor took 96.51 ms. Allocated memory is still 206.6 MB. Free memory was 177.6 MB in the beginning and 173.7 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. [2020-09-25 12:03:17,718 INFO L168 Benchmark]: RCFGBuilder took 1194.14 ms. Allocated memory was 206.6 MB in the beginning and 234.9 MB in the end (delta: 28.3 MB). Free memory was 173.7 MB in the beginning and 180.0 MB in the end (delta: -6.4 MB). Peak memory consumption was 82.7 MB. Max. memory is 7.1 GB. [2020-09-25 12:03:17,719 INFO L168 Benchmark]: TraceAbstraction took 17579.14 ms. Allocated memory was 234.9 MB in the beginning and 454.6 MB in the end (delta: 219.7 MB). Free memory was 180.0 MB in the beginning and 141.7 MB in the end (delta: 38.3 MB). Peak memory consumption was 258.0 MB. Max. memory is 7.1 GB. [2020-09-25 12:03:17,723 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 148.9 MB. Free memory was 123.5 MB in the beginning and 123.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 715.54 ms. Allocated memory was 148.9 MB in the beginning and 206.6 MB in the end (delta: 57.7 MB). Free memory was 103.6 MB in the beginning and 177.6 MB in the end (delta: -74.0 MB). Peak memory consumption was 25.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 96.51 ms. Allocated memory is still 206.6 MB. Free memory was 177.6 MB in the beginning and 173.7 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1194.14 ms. Allocated memory was 206.6 MB in the beginning and 234.9 MB in the end (delta: 28.3 MB). Free memory was 173.7 MB in the beginning and 180.0 MB in the end (delta: -6.4 MB). Peak memory consumption was 82.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 17579.14 ms. Allocated memory was 234.9 MB in the beginning and 454.6 MB in the end (delta: 219.7 MB). Free memory was 180.0 MB in the beginning and 141.7 MB in the end (delta: 38.3 MB). Peak memory consumption was 258.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 302]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L48] int pumpRunning = 0; [L49] int systemActive = 1; [L307] int cleanupTimeShifts = 4; [L403] int waterLevel = 1; [L404] int methaneLevelCritical = 0; [L652] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L380] int retValue_acc ; [L381] int tmp ; [L385] FCALL select_helpers() [L386] FCALL select_features() [L387] CALL, EXPR valid_product() [L253] int retValue_acc ; [L256] retValue_acc = 1 [L257] return (retValue_acc); [L387] RET, EXPR valid_product() [L387] tmp = valid_product() [L389] COND TRUE \read(tmp) [L391] FCALL setup() [L392] CALL runTest() [L374] CALL test() [L160] int splverifierCounter ; [L161] int tmp ; [L162] int tmp___0 ; [L163] int tmp___1 ; [L164] int tmp___2 ; [L167] splverifierCounter = 0 [L169] COND TRUE 1 [L171] COND TRUE splverifierCounter < 4 [L177] tmp = __VERIFIER_nondet_int() [L179] COND TRUE \read(tmp) [L181] CALL waterRise() [L421] COND TRUE waterLevel < 2 [L422] waterLevel = waterLevel + 1 [L181] RET waterRise() [L187] tmp___0 = __VERIFIER_nondet_int() [L189] COND FALSE !(\read(tmp___0)) [L197] tmp___2 = __VERIFIER_nondet_int() [L199] COND TRUE \read(tmp___2) [L212] CALL timeShift() [L56] COND FALSE !(\read(pumpRunning)) [L63] COND TRUE \read(systemActive) [L65] FCALL processEnvironment() [L71] CALL __utac_acc__Specification3_spec__1() [L265] int tmp ; [L266] int tmp___0 ; [L267] int tmp___1 ; [L271] CALL, EXPR isMethaneLevelCritical() [L442] int retValue_acc ; [L445] retValue_acc = methaneLevelCritical [L446] return (retValue_acc); [L271] RET, EXPR isMethaneLevelCritical() [L271] tmp = isMethaneLevelCritical() [L273] COND FALSE !(\read(tmp)) [L277] CALL, EXPR getWaterLevel() [L474] int retValue_acc ; [L477] retValue_acc = waterLevel [L478] return (retValue_acc); [L277] RET, EXPR getWaterLevel() [L277] tmp___0 = getWaterLevel() [L279] COND TRUE tmp___0 == 2 [L281] CALL, EXPR isPumpRunning() [L111] int retValue_acc ; [L114] retValue_acc = pumpRunning [L115] return (retValue_acc); [L281] RET, EXPR isPumpRunning() [L281] tmp___1 = isPumpRunning() [L283] COND FALSE !(\read(tmp___1)) [L287] CALL __automaton_fail() [L302] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 34 procedures, 578 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 17.4s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 5.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 395 SDtfs, 578 SDslu, 673 SDs, 0 SdLazy, 1088 SolverSat, 151 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 61 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 3.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=282occurred in iteration=1, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 60 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 10.6s InterpolantComputationTime, 483 NumberOfCodeBlocks, 483 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 310 ConstructedInterpolants, 0 QuantifiedInterpolants, 130146 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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...