/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=0.1 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product08.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 09:48:35,719 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 09:48:35,722 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 09:48:35,749 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 09:48:35,749 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 09:48:35,751 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 09:48:35,752 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 09:48:35,754 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 09:48:35,755 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 09:48:35,756 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 09:48:35,757 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 09:48:35,758 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 09:48:35,759 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 09:48:35,760 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 09:48:35,761 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 09:48:35,762 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 09:48:35,763 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 09:48:35,764 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 09:48:35,766 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 09:48:35,768 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 09:48:35,770 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 09:48:35,771 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 09:48:35,772 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 09:48:35,773 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 09:48:35,776 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 09:48:35,776 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 09:48:35,777 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 09:48:35,778 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 09:48:35,778 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 09:48:35,779 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 09:48:35,780 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 09:48:35,781 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 09:48:35,782 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 09:48:35,782 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 09:48:35,784 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 09:48:35,784 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 09:48:35,785 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 09:48:35,785 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 09:48:35,785 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 09:48:35,786 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 09:48:35,787 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 09:48:35,788 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 09:48:35,814 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 09:48:35,814 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 09:48:35,816 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 09:48:35,816 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 09:48:35,816 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 09:48:35,816 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 09:48:35,817 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 09:48:35,817 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 09:48:35,817 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 09:48:35,817 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 09:48:35,818 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 09:48:35,818 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 09:48:35,818 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 09:48:35,818 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 09:48:35,818 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 09:48:35,819 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 09:48:35,819 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 09:48:35,819 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 09:48:35,819 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 09:48:35,820 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 09:48:35,820 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 09:48:35,820 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 09:48:35,820 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 09:48:35,820 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 09:48:35,821 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 09:48:35,821 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 09:48:35,821 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 09:48:35,821 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 09:48:35,821 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 09:48:35,822 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=0.1;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=0.1;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=0.1;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=0.1;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=0.1;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=0.1;log-additional-information=true; [2020-09-25 09:48:36,293 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 09:48:36,319 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 09:48:36,324 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 09:48:36,326 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 09:48:36,326 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 09:48:36,327 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product08.cil.c [2020-09-25 09:48:36,405 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2c020f20a/3b036dc6a588473c88c1ab90e045ae42/FLAG2e374c3de [2020-09-25 09:48:36,990 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 09:48:36,991 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product08.cil.c [2020-09-25 09:48:37,005 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2c020f20a/3b036dc6a588473c88c1ab90e045ae42/FLAG2e374c3de [2020-09-25 09:48:37,264 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2c020f20a/3b036dc6a588473c88c1ab90e045ae42 [2020-09-25 09:48:37,279 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 09:48:37,285 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 09:48:37,286 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 09:48:37,286 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 09:48:37,290 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 09:48:37,292 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 09:48:37" (1/1) ... [2020-09-25 09:48:37,296 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@387f035d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:48:37, skipping insertion in model container [2020-09-25 09:48:37,296 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 09:48:37" (1/1) ... [2020-09-25 09:48:37,305 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 09:48:37,376 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 09:48:37,962 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 09:48:37,978 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 09:48:38,048 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 09:48:38,084 INFO L208 MainTranslator]: Completed translation [2020-09-25 09:48:38,084 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:48:38 WrapperNode [2020-09-25 09:48:38,085 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 09:48:38,085 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 09:48:38,086 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 09:48:38,086 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 09:48:38,102 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:48:38" (1/1) ... [2020-09-25 09:48:38,102 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:48:38" (1/1) ... [2020-09-25 09:48:38,122 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:48:38" (1/1) ... [2020-09-25 09:48:38,123 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:48:38" (1/1) ... [2020-09-25 09:48:38,155 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:48:38" (1/1) ... [2020-09-25 09:48:38,166 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:48:38" (1/1) ... [2020-09-25 09:48:38,171 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:48:38" (1/1) ... [2020-09-25 09:48:38,180 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 09:48:38,180 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 09:48:38,180 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 09:48:38,181 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 09:48:38,182 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:48:38" (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 09:48:38,257 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 09:48:38,257 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 09:48:38,257 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 09:48:38,257 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-25 09:48:38,258 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 09:48:38,258 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 09:48:38,258 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 09:48:38,258 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 09:48:38,258 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 09:48:38,259 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 09:48:38,259 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 09:48:38,259 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 09:48:38,259 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 09:48:38,259 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 09:48:38,259 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 09:48:38,260 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 09:48:38,260 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 09:48:38,260 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 09:48:38,260 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 09:48:38,261 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 09:48:38,261 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 09:48:38,261 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 09:48:38,261 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 09:48:38,261 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 09:48:38,262 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 09:48:38,262 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 09:48:38,262 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 09:48:38,262 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 09:48:38,262 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 09:48:38,262 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 09:48:38,263 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 09:48:38,263 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 09:48:38,263 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 09:48:38,263 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 09:48:38,263 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 09:48:38,264 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 09:48:38,264 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 09:48:38,264 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 09:48:38,264 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 09:48:38,264 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 09:48:38,264 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 09:48:38,265 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 09:48:38,265 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 09:48:38,265 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 09:48:38,265 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-25 09:48:38,265 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 09:48:38,265 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 09:48:38,265 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 09:48:38,266 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 09:48:38,266 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 09:48:38,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 09:48:38,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 09:48:38,266 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 09:48:38,266 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 09:48:38,267 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 09:48:38,267 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 09:48:38,267 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 09:48:38,267 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 09:48:38,267 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 09:48:38,267 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 09:48:38,268 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 09:48:38,268 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 09:48:38,268 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 09:48:38,268 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 09:48:38,268 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 09:48:38,268 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 09:48:38,269 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 09:48:38,269 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 09:48:38,269 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 09:48:38,269 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 09:48:38,269 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 09:48:38,269 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 09:48:38,270 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 09:48:38,270 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 09:48:38,270 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 09:48:38,270 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 09:48:38,270 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 09:48:38,270 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 09:48:38,271 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 09:48:38,271 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 09:48:38,271 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 09:48:38,271 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 09:48:38,271 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 09:48:38,271 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 09:48:38,272 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 09:48:38,272 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 09:48:38,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 09:48:38,272 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 09:48:39,510 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 09:48:39,510 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 09:48:39,517 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 09:48:39 BoogieIcfgContainer [2020-09-25 09:48:39,518 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 09:48:39,519 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 09:48:39,519 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 09:48:39,526 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 09:48:39,526 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 09:48:37" (1/3) ... [2020-09-25 09:48:39,527 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68acfc1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 09:48:39, skipping insertion in model container [2020-09-25 09:48:39,527 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:48:38" (2/3) ... [2020-09-25 09:48:39,528 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68acfc1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 09:48:39, skipping insertion in model container [2020-09-25 09:48:39,528 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 09:48:39" (3/3) ... [2020-09-25 09:48:39,530 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product08.cil.c [2020-09-25 09:48:39,542 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 09:48:39,554 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 09:48:39,577 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 09:48:39,621 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 09:48:39,621 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 09:48:39,622 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 09:48:39,622 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 09:48:39,622 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 09:48:39,622 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 09:48:39,623 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 09:48:39,623 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 09:48:39,666 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states. [2020-09-25 09:48:39,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-25 09:48:39,702 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:48:39,704 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 09:48:39,705 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:48:39,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:48:39,715 INFO L82 PathProgramCache]: Analyzing trace with hash -1628156155, now seen corresponding path program 1 times [2020-09-25 09:48:39,727 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:48:39,728 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2056858254] [2020-09-25 09:48:39,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:48:40,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:48:40,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:40,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:41,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:45,092 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:48:45,096 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-25 09:48:45,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 09:48:45,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-09-25 09:48:45,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:48:45,102 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:48:45,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 09:48:45,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-25 09:48:45,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 92 [2020-09-25 09:48:45,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-25 09:48:45,828 WARN L193 SmtUtils]: Spent 367.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 09:48:45,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:48:45,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:48:45,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:46,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:48:46,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 09:48:46,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:48:46,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 281 [2020-09-25 09:48:46,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:48:46,158 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:48:46,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:48:46,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:48:46,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-25 09:48:46,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:48:46,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 09:48:46,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:48:46,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:46,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:48:46,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:48:46,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:48:46,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 09:48:46,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:48:46,243 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:48:46,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:48:46,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:48:46,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:48:46,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:48:46,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 09:48:46,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:48:46,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:46,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:48:46,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:48:46,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:48:46,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 09:48:46,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:48:46,254 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:48:46,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:48:46,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:48:46,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:48:46,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:48:46,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 09:48:46,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:48:46,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:46,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:48:46,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:48:46,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:48:46,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 09:48:46,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:48:46,272 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:48:46,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:48:46,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:48:46,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:48:46,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:48:46,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 09:48:46,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:48:46,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:46,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:48:46,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:48:46,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:48:46,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 09:48:46,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:48:46,289 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:48:46,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:48:46,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:48:46,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:48:46,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:48:46,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 09:48:46,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:48:46,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:46,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:48:46,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:48:46,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:48:46,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 09:48:46,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:48:46,306 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:48:46,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:48:46,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:48:46,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:48:46,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 09:48:46,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 09:48:46,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:48:46,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:46,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:48:46,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:48:46,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:48:46,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 09:48:46,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:48:46,330 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:48:46,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 09:48:46,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:48:46,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:48:46,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:48:46,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-25 09:48:46,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:48:46,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:46,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:48:46,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:48:46,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:48:46,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 09:48:46,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:48:46,394 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:48:46,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:48:46,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 09:48:46,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:48:46,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:48:46,446 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 09:48:46,447 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2056858254] [2020-09-25 09:48:46,449 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 09:48:46,450 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 09:48:46,451 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577352177] [2020-09-25 09:48:46,461 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 09:48:46,462 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:48:46,480 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 09:48:46,481 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-25 09:48:46,484 INFO L87 Difference]: Start difference. First operand 285 states. Second operand 8 states. [2020-09-25 09:48:47,146 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 09:48:48,785 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:48:49,135 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 09:48:49,591 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 09:48:49,987 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 09:48:50,310 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:48:50,720 WARN L193 SmtUtils]: Spent 362.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:48:51,028 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 09:48:52,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:48:52,178 INFO L93 Difference]: Finished difference Result 571 states and 710 transitions. [2020-09-25 09:48:52,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 09:48:52,182 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 153 [2020-09-25 09:48:52,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:48:52,205 INFO L225 Difference]: With dead ends: 571 [2020-09-25 09:48:52,206 INFO L226 Difference]: Without dead ends: 397 [2020-09-25 09:48:52,213 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-09-25 09:48:52,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397 states. [2020-09-25 09:48:52,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 350. [2020-09-25 09:48:52,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 350 states. [2020-09-25 09:48:52,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 398 transitions. [2020-09-25 09:48:52,366 INFO L78 Accepts]: Start accepts. Automaton has 350 states and 398 transitions. Word has length 153 [2020-09-25 09:48:52,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:48:52,367 INFO L479 AbstractCegarLoop]: Abstraction has 350 states and 398 transitions. [2020-09-25 09:48:52,367 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 09:48:52,368 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states and 398 transitions. [2020-09-25 09:48:52,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2020-09-25 09:48:52,373 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:48:52,373 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 09:48:52,373 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 09:48:52,374 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:48:52,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:48:52,374 INFO L82 PathProgramCache]: Analyzing trace with hash 135119293, now seen corresponding path program 1 times [2020-09-25 09:48:52,375 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:48:52,375 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1804490766] [2020-09-25 09:48:52,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:48:52,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:48:52,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:52,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:52,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:57,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:48:57,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 194 [2020-09-25 09:48:57,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 09:48:57,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-09-25 09:48:57,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:48:57,437 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:48:57,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 09:48:57,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-25 09:48:57,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-09-25 09:48:57,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:48:57,753 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 09:48:57,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:48:57,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:48:57,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:58,033 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:48:58,033 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 09:48:58,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:48:58,034 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 237 [2020-09-25 09:48:58,034 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:48:58,034 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:48:58,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:48:58,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:48:58,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 09:48:58,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:48:58,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 09:48:58,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:48:58,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:58,093 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:48:58,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:48:58,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:48:58,093 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 09:48:58,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:48:58,094 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:48:58,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:48:58,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:48:58,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:48:58,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:48:58,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 09:48:58,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:48:58,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:58,100 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:48:58,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:48:58,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:48:58,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:48:58,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:48:58,102 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:48:58,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:48:58,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:48:58,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:48:58,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:48:58,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 09:48:58,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:48:58,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:58,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:48:58,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:48:58,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:48:58,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 09:48:58,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:48:58,120 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:48:58,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:48:58,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:48:58,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:48:58,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:48:58,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 09:48:58,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:48:58,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:58,129 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:48:58,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:48:58,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:48:58,130 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:48:58,130 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:48:58,131 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:48:58,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:48:58,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:48:58,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:48:58,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:48:58,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-09-25 09:48:58,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:48:58,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:58,158 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:48:58,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 09:48:58,159 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:48:58,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 09:48:58,160 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:48:58,160 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:48:58,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:48:58,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:48:58,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 09:48:58,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:48:58,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-25 09:48:58,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:48:58,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:58,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:48:58,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:48:58,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:48:58,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:48:58,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:48:58,172 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:48:58,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:48:58,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 09:48:58,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:48:58,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:48:58,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-25 09:48:58,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:48:58,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:58,179 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:48:58,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:48:58,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:48:58,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:48:58,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:48:58,184 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:48:58,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:48:58,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 09:48:58,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:48:58,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:48:58,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-25 09:48:58,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:48:58,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:58,191 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:48:58,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:48:58,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:48:58,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:48:58,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:48:58,193 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:48:58,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:48:58,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 09:48:58,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:48:58,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 09:48:58,249 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 09:48:58,249 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1804490766] [2020-09-25 09:48:58,250 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 09:48:58,250 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 09:48:58,250 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869013329] [2020-09-25 09:48:58,253 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 09:48:58,254 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:48:58,254 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 09:48:58,254 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 09:48:58,255 INFO L87 Difference]: Start difference. First operand 350 states and 398 transitions. Second operand 6 states. [2020-09-25 09:48:58,799 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 09:48:59,809 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 09:49:02,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:49:02,395 INFO L93 Difference]: Finished difference Result 1093 states and 1384 transitions. [2020-09-25 09:49:02,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 09:49:02,396 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 159 [2020-09-25 09:49:02,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:49:02,407 INFO L225 Difference]: With dead ends: 1093 [2020-09-25 09:49:02,407 INFO L226 Difference]: Without dead ends: 853 [2020-09-25 09:49:02,411 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2020-09-25 09:49:02,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 853 states. [2020-09-25 09:49:02,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 853 to 743. [2020-09-25 09:49:02,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 743 states. [2020-09-25 09:49:02,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 743 states to 743 states and 885 transitions. [2020-09-25 09:49:02,548 INFO L78 Accepts]: Start accepts. Automaton has 743 states and 885 transitions. Word has length 159 [2020-09-25 09:49:02,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:49:02,549 INFO L479 AbstractCegarLoop]: Abstraction has 743 states and 885 transitions. [2020-09-25 09:49:02,549 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 09:49:02,549 INFO L276 IsEmpty]: Start isEmpty. Operand 743 states and 885 transitions. [2020-09-25 09:49:02,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-09-25 09:49:02,554 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:49:02,554 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 09:49:02,554 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 09:49:02,555 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:49:02,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:49:02,555 INFO L82 PathProgramCache]: Analyzing trace with hash -1646692452, now seen corresponding path program 1 times [2020-09-25 09:49:02,555 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:49:02,555 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1187174692] [2020-09-25 09:49:02,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:49:02,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:49:02,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:49:02,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:49:02,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:49:07,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:49:07,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 206 [2020-09-25 09:49:07,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 09:49:07,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 09:49:07,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:49:07,607 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:49:07,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 09:49:07,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-25 09:49:07,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-25 09:49:07,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:49:07,903 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 09:49:07,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:49:07,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:49:07,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:49:08,154 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:49:08,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 09:49:08,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:49:08,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 218 [2020-09-25 09:49:08,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:49:08,155 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:49:08,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:49:08,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:49:08,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 09:49:08,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:49:08,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 09:49:08,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:49:08,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:49:08,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:49:08,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:49:08,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:49:08,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:49:08,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:49:08,198 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:49:08,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:49:08,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:49:08,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:49:08,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:49:08,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 09:49:08,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:49:08,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:49:08,204 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:49:08,204 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:49:08,204 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:49:08,204 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:49:08,205 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:49:08,205 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:49:08,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:49:08,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:49:08,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:49:08,206 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:49:08,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 09:49:08,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:49:08,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:49:08,214 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:49:08,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:49:08,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:49:08,215 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 09:49:08,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:49:08,216 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:49:08,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:49:08,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:49:08,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:49:08,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:49:08,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 09:49:08,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:49:08,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:49:08,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:49:08,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:49:08,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:49:08,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:49:08,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:49:08,224 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:49:08,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:49:08,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:49:08,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:49:08,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:49:08,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-09-25 09:49:08,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:49:08,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:49:08,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:49:08,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 09:49:08,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:49:08,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 09:49:08,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:49:08,240 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:49:08,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:49:08,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 09:49:08,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:49:08,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:49:08,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-09-25 09:49:08,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:49:08,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:49:08,254 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:49:08,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 09:49:08,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:49:08,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:49:08,255 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:49:08,255 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:49:08,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:49:08,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-25 09:49:08,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:49:08,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:49:08,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 09:49:08,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:49:08,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:49:08,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:49:08,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:49:08,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:49:08,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:49:08,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:49:08,262 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:49:08,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:49:08,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:49:08,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:49:08,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:49:08,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 09:49:08,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:49:08,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:49:08,267 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:49:08,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:49:08,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:49:08,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:49:08,268 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:49:08,268 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:49:08,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:49:08,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 09:49:08,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:49:08,269 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:49:08,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-09-25 09:49:08,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:49:08,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:49:08,274 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:49:08,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:49:08,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:49:08,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:49:08,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:49:08,275 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:49:08,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:49:08,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 09:49:08,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:49:08,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:49:08,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-09-25 09:49:08,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:49:08,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:49:08,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:49:08,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:49:08,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:49:08,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:49:08,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:49:08,282 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:49:08,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:49:08,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 09:49:08,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:49:08,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:49:08,311 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 09:49:08,312 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1187174692] [2020-09-25 09:49:08,312 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 09:49:08,312 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 09:49:08,313 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101042402] [2020-09-25 09:49:08,313 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 09:49:08,313 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:49:08,314 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 09:49:08,314 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 09:49:08,314 INFO L87 Difference]: Start difference. First operand 743 states and 885 transitions. Second operand 6 states. [2020-09-25 09:49:08,837 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 09:49:09,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:49:09,698 INFO L93 Difference]: Finished difference Result 1275 states and 1578 transitions. [2020-09-25 09:49:09,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 09:49:09,699 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 167 [2020-09-25 09:49:09,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:49:09,704 INFO L225 Difference]: With dead ends: 1275 [2020-09-25 09:49:09,704 INFO L226 Difference]: Without dead ends: 611 [2020-09-25 09:49:09,708 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2020-09-25 09:49:09,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 611 states. [2020-09-25 09:49:09,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 611 to 580. [2020-09-25 09:49:09,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 580 states. [2020-09-25 09:49:09,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 580 states to 580 states and 642 transitions. [2020-09-25 09:49:09,806 INFO L78 Accepts]: Start accepts. Automaton has 580 states and 642 transitions. Word has length 167 [2020-09-25 09:49:09,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:49:09,806 INFO L479 AbstractCegarLoop]: Abstraction has 580 states and 642 transitions. [2020-09-25 09:49:09,806 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 09:49:09,807 INFO L276 IsEmpty]: Start isEmpty. Operand 580 states and 642 transitions. [2020-09-25 09:49:09,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-09-25 09:49:09,811 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:49:09,811 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 09:49:09,811 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 09:49:09,812 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:49:09,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:49:09,812 INFO L82 PathProgramCache]: Analyzing trace with hash -1990325339, now seen corresponding path program 1 times [2020-09-25 09:49:09,812 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:49:09,813 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2078344651] [2020-09-25 09:49:09,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:49:09,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 09:49:09,906 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 09:49:09,907 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 09:49:09,912 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 09:49:09,939 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 09:49:09 BoogieIcfgContainer [2020-09-25 09:49:09,940 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 09:49:09,942 INFO L168 Benchmark]: Toolchain (without parser) took 32661.38 ms. Allocated memory was 143.7 MB in the beginning and 608.2 MB in the end (delta: 464.5 MB). Free memory was 101.0 MB in the beginning and 549.9 MB in the end (delta: -448.8 MB). Peak memory consumption was 483.9 MB. Max. memory is 7.1 GB. [2020-09-25 09:49:09,943 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 143.7 MB. Free memory was 120.3 MB in the beginning and 119.9 MB in the end (delta: 419.7 kB). Peak memory consumption was 419.7 kB. Max. memory is 7.1 GB. [2020-09-25 09:49:09,944 INFO L168 Benchmark]: CACSL2BoogieTranslator took 798.92 ms. Allocated memory was 143.7 MB in the beginning and 202.9 MB in the end (delta: 59.2 MB). Free memory was 100.2 MB in the beginning and 172.3 MB in the end (delta: -72.1 MB). Peak memory consumption was 25.6 MB. Max. memory is 7.1 GB. [2020-09-25 09:49:09,945 INFO L168 Benchmark]: Boogie Preprocessor took 94.37 ms. Allocated memory is still 202.9 MB. Free memory was 172.3 MB in the beginning and 168.3 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. [2020-09-25 09:49:09,946 INFO L168 Benchmark]: RCFGBuilder took 1337.72 ms. Allocated memory was 202.9 MB in the beginning and 234.9 MB in the end (delta: 32.0 MB). Free memory was 168.3 MB in the beginning and 181.1 MB in the end (delta: -12.8 MB). Peak memory consumption was 86.4 MB. Max. memory is 7.1 GB. [2020-09-25 09:49:09,946 INFO L168 Benchmark]: TraceAbstraction took 30420.64 ms. Allocated memory was 234.9 MB in the beginning and 608.2 MB in the end (delta: 373.3 MB). Free memory was 181.1 MB in the beginning and 549.9 MB in the end (delta: -368.8 MB). Peak memory consumption was 472.7 MB. Max. memory is 7.1 GB. [2020-09-25 09:49:09,951 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 143.7 MB. Free memory was 120.3 MB in the beginning and 119.9 MB in the end (delta: 419.7 kB). Peak memory consumption was 419.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 798.92 ms. Allocated memory was 143.7 MB in the beginning and 202.9 MB in the end (delta: 59.2 MB). Free memory was 100.2 MB in the beginning and 172.3 MB in the end (delta: -72.1 MB). Peak memory consumption was 25.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 94.37 ms. Allocated memory is still 202.9 MB. Free memory was 172.3 MB in the beginning and 168.3 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1337.72 ms. Allocated memory was 202.9 MB in the beginning and 234.9 MB in the end (delta: 32.0 MB). Free memory was 168.3 MB in the beginning and 181.1 MB in the end (delta: -12.8 MB). Peak memory consumption was 86.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 30420.64 ms. Allocated memory was 234.9 MB in the beginning and 608.2 MB in the end (delta: 373.3 MB). Free memory was 181.1 MB in the beginning and 549.9 MB in the end (delta: -368.8 MB). Peak memory consumption was 472.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 532]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L247] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L448] int waterLevel = 1; [L449] int methaneLevelCritical = 0; [L613] int pumpRunning = 0; [L614] int systemActive = 1; [L807] int cleanupTimeShifts = 4; [L880] int retValue_acc ; [L881] int tmp ; [L885] FCALL select_helpers() [L886] FCALL select_features() [L887] CALL, EXPR valid_product() [L798] int retValue_acc ; [L801] retValue_acc = 1 [L802] return (retValue_acc); [L887] RET, EXPR valid_product() [L887] tmp = valid_product() [L889] COND TRUE \read(tmp) [L891] FCALL setup() [L892] CALL runTest() [L874] CALL test() [L542] int splverifierCounter ; [L543] int tmp ; [L544] int tmp___0 ; [L545] int tmp___1 ; [L546] int tmp___2 ; [L549] splverifierCounter = 0 [L551] COND TRUE 1 [L553] COND TRUE splverifierCounter < 4 [L559] tmp = __VERIFIER_nondet_int() [L561] COND TRUE \read(tmp) [L563] CALL waterRise() [L466] COND TRUE waterLevel < 2 [L467] waterLevel = waterLevel + 1 [L563] RET waterRise() [L569] tmp___0 = __VERIFIER_nondet_int() [L571] COND FALSE !(\read(tmp___0)) [L579] tmp___2 = __VERIFIER_nondet_int() [L581] COND FALSE !(\read(tmp___2)) [L587] tmp___1 = __VERIFIER_nondet_int() [L589] COND TRUE \read(tmp___1) [L591] CALL stopSystem() [L749] COND FALSE !(\read(pumpRunning)) [L756] systemActive = 0 [L591] RET stopSystem() [L598] CALL timeShift() [L620] COND FALSE !(\read(pumpRunning)) [L627] COND FALSE !(\read(systemActive)) [L635] CALL __utac_acc__Specification3_spec__1() [L45] int tmp ; [L46] int tmp___0 ; [L47] int tmp___1 ; [L51] CALL, EXPR isMethaneLevelCritical() [L487] int retValue_acc ; [L490] retValue_acc = methaneLevelCritical [L491] return (retValue_acc); [L51] RET, EXPR isMethaneLevelCritical() [L51] tmp = isMethaneLevelCritical() [L53] COND FALSE !(\read(tmp)) [L57] CALL, EXPR getWaterLevel() [L519] int retValue_acc ; [L522] retValue_acc = waterLevel [L523] return (retValue_acc); [L57] RET, EXPR getWaterLevel() [L57] tmp___0 = getWaterLevel() [L59] COND TRUE tmp___0 == 2 [L61] CALL, EXPR isPumpRunning() [L701] int retValue_acc ; [L704] retValue_acc = pumpRunning [L705] return (retValue_acc); [L61] RET, EXPR isPumpRunning() [L61] tmp___1 = isPumpRunning() [L63] COND FALSE !(\read(tmp___1)) [L67] CALL __automaton_fail() [L532] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 37 procedures, 600 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 30.2s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 11.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 698 SDtfs, 1371 SDslu, 1028 SDs, 0 SdLazy, 2026 SolverSat, 477 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 102 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 4.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=743occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 3 MinimizatonAttempts, 188 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 17.7s InterpolantComputationTime, 656 NumberOfCodeBlocks, 656 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 476 ConstructedInterpolants, 0 QuantifiedInterpolants, 204612 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...