/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product24.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 07:10:17,802 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 07:10:17,804 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 07:10:17,829 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 07:10:17,830 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 07:10:17,831 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 07:10:17,833 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 07:10:17,841 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 07:10:17,844 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 07:10:17,845 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 07:10:17,847 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 07:10:17,848 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 07:10:17,848 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 07:10:17,849 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 07:10:17,850 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 07:10:17,853 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 07:10:17,856 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 07:10:17,857 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 07:10:17,861 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 07:10:17,863 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 07:10:17,864 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 07:10:17,868 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 07:10:17,869 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 07:10:17,870 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 07:10:17,880 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 07:10:17,880 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 07:10:17,881 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 07:10:17,886 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 07:10:17,886 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 07:10:17,887 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 07:10:17,887 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 07:10:17,888 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 07:10:17,888 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 07:10:17,892 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 07:10:17,893 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 07:10:17,893 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 07:10:17,894 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 07:10:17,894 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 07:10:17,895 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 07:10:17,895 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 07:10:17,896 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 07:10:17,897 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-14 07:10:17,934 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 07:10:17,934 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 07:10:17,936 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 07:10:17,936 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 07:10:17,936 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 07:10:17,936 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 07:10:17,936 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 07:10:17,937 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 07:10:17,937 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 07:10:17,937 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 07:10:17,937 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 07:10:17,937 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 07:10:17,938 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 07:10:17,938 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 07:10:17,938 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 07:10:17,938 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 07:10:17,938 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 07:10:17,939 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 07:10:17,939 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 07:10:17,939 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 07:10:17,939 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 07:10:17,939 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 07:10:17,940 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 07:10:17,940 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 07:10:17,940 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 07:10:17,940 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 07:10:17,940 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 07:10:17,941 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 07:10:17,941 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 07:10:17,941 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; [2020-10-14 07:10:18,268 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 07:10:18,286 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 07:10:18,292 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 07:10:18,295 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 07:10:18,296 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 07:10:18,296 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product24.cil.c [2020-10-14 07:10:18,350 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2634023c1/5f70528d5f504517a8f9684808d7b25f/FLAG25a0b4cab [2020-10-14 07:10:18,901 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 07:10:18,902 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product24.cil.c [2020-10-14 07:10:18,918 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2634023c1/5f70528d5f504517a8f9684808d7b25f/FLAG25a0b4cab [2020-10-14 07:10:19,200 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2634023c1/5f70528d5f504517a8f9684808d7b25f [2020-10-14 07:10:19,209 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 07:10:19,211 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 07:10:19,212 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 07:10:19,213 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 07:10:19,216 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 07:10:19,217 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 07:10:19" (1/1) ... [2020-10-14 07:10:19,220 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7225e1e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:10:19, skipping insertion in model container [2020-10-14 07:10:19,220 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 07:10:19" (1/1) ... [2020-10-14 07:10:19,228 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 07:10:19,269 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 07:10:19,783 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 07:10:19,802 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 07:10:19,937 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 07:10:19,972 INFO L208 MainTranslator]: Completed translation [2020-10-14 07:10:19,973 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:10:19 WrapperNode [2020-10-14 07:10:19,973 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 07:10:19,974 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 07:10:19,974 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 07:10:19,974 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 07:10:19,984 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:10:19" (1/1) ... [2020-10-14 07:10:19,984 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:10:19" (1/1) ... [2020-10-14 07:10:20,004 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:10:19" (1/1) ... [2020-10-14 07:10:20,004 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:10:19" (1/1) ... [2020-10-14 07:10:20,051 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:10:19" (1/1) ... [2020-10-14 07:10:20,066 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:10:19" (1/1) ... [2020-10-14 07:10:20,077 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:10:19" (1/1) ... [2020-10-14 07:10:20,084 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 07:10:20,085 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 07:10:20,085 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 07:10:20,085 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 07:10:20,086 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:10:19" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 07:10:20,143 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 07:10:20,143 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 07:10:20,143 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-14 07:10:20,144 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-14 07:10:20,144 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-14 07:10:20,144 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-10-14 07:10:20,144 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2020-10-14 07:10:20,145 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-14 07:10:20,145 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-14 07:10:20,145 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-14 07:10:20,145 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-14 07:10:20,146 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-14 07:10:20,146 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-14 07:10:20,146 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-10-14 07:10:20,147 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-10-14 07:10:20,147 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-10-14 07:10:20,147 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-14 07:10:20,148 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-10-14 07:10:20,148 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-14 07:10:20,148 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-14 07:10:20,149 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-14 07:10:20,149 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-14 07:10:20,149 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 07:10:20,149 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-14 07:10:20,151 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-14 07:10:20,152 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-14 07:10:20,152 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-14 07:10:20,152 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-14 07:10:20,152 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-14 07:10:20,152 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-14 07:10:20,152 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-14 07:10:20,152 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-14 07:10:20,153 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-14 07:10:20,153 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-14 07:10:20,153 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-14 07:10:20,154 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-10-14 07:10:20,154 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-14 07:10:20,154 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-14 07:10:20,154 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-14 07:10:20,154 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-14 07:10:20,154 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 07:10:20,155 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 07:10:20,155 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-14 07:10:20,155 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-14 07:10:20,155 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-14 07:10:20,155 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-14 07:10:20,155 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-14 07:10:20,155 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-10-14 07:10:20,156 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-14 07:10:20,156 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-14 07:10:20,156 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-14 07:10:20,156 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-14 07:10:20,156 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-14 07:10:20,156 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-10-14 07:10:20,157 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-10-14 07:10:20,157 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-10-14 07:10:20,157 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-14 07:10:20,157 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-10-14 07:10:20,157 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-10-14 07:10:20,157 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2020-10-14 07:10:20,158 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-14 07:10:20,158 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-14 07:10:20,158 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-14 07:10:20,158 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-14 07:10:20,158 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-14 07:10:20,158 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-14 07:10:20,159 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-14 07:10:20,159 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-14 07:10:20,159 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-14 07:10:20,159 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-14 07:10:20,159 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-14 07:10:20,159 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-14 07:10:20,159 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-14 07:10:20,160 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 07:10:20,160 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-14 07:10:20,160 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-14 07:10:20,160 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-14 07:10:20,160 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-14 07:10:20,160 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-14 07:10:20,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-14 07:10:20,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-14 07:10:20,161 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-14 07:10:20,161 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-14 07:10:20,161 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-14 07:10:20,161 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-14 07:10:20,161 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-14 07:10:20,161 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-14 07:10:20,161 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-14 07:10:20,162 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-14 07:10:20,162 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-14 07:10:20,162 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-14 07:10:20,162 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 07:10:20,162 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-14 07:10:20,162 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 07:10:21,229 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 07:10:21,230 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-14 07:10:21,239 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 07:10:21 BoogieIcfgContainer [2020-10-14 07:10:21,240 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 07:10:21,242 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 07:10:21,242 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 07:10:21,245 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 07:10:21,245 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 07:10:19" (1/3) ... [2020-10-14 07:10:21,246 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d0991f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 07:10:21, skipping insertion in model container [2020-10-14 07:10:21,247 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:10:19" (2/3) ... [2020-10-14 07:10:21,247 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d0991f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 07:10:21, skipping insertion in model container [2020-10-14 07:10:21,248 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 07:10:21" (3/3) ... [2020-10-14 07:10:21,250 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product24.cil.c [2020-10-14 07:10:21,260 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 07:10:21,269 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 07:10:21,283 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 07:10:21,306 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 07:10:21,306 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 07:10:21,307 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 07:10:21,307 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 07:10:21,307 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 07:10:21,307 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 07:10:21,307 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 07:10:21,307 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 07:10:21,328 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states. [2020-10-14 07:10:21,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-10-14 07:10:21,339 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:10:21,340 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:10:21,340 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:10:21,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:10:21,347 INFO L82 PathProgramCache]: Analyzing trace with hash -586231627, now seen corresponding path program 1 times [2020-10-14 07:10:21,355 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:10:21,356 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1030358090] [2020-10-14 07:10:21,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:10:21,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:10:21,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:10:21,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:10:22,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:10:23,906 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:10:23,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-14 07:10:23,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 07:10:23,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2303 [2020-10-14 07:10:23,910 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:10:23,911 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:10:23,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:10:23,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-10-14 07:10:23,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:10:23,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 07:10:24,428 WARN L193 SmtUtils]: Spent 417.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-14 07:10:24,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:10:24,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:10:24,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:10:24,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:10:24,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:10:24,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:10:24,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-14 07:10:24,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:10:24,514 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:10:24,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:10:24,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:10:24,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:10:24,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 07:10:24,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:10:24,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:10:24,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:10:24,550 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:10:24,550 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:10:24,551 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:10:24,551 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:10:24,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:10:24,552 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:10:24,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:10:24,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:10:24,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:10:24,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 07:10:24,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-14 07:10:24,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:10:24,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:10:24,559 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:10:24,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:10:24,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:10:24,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:10:24,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:10:24,561 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:10:24,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:10:24,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:10:24,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:10:24,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:10:24,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 07:10:24,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:10:24,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:10:24,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:10:24,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:10:24,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:10:24,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:10:24,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:10:24,572 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:10:24,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:10:24,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:10:24,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:10:24,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:10:24,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 07:10:24,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:10:24,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:10:24,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:10:24,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:10:24,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:10:24,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:10:24,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:10:24,579 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:10:24,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:10:24,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:10:24,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:10:24,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:10:24,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-14 07:10:24,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:10:24,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:10:24,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:10:24,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:10:24,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:10:24,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:10:24,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:10:24,588 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:10:24,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:10:24,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:10:24,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:10:24,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:10:24,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-14 07:10:24,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:10:24,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:10:24,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:10:24,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:10:24,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:10:24,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:10:24,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:10:24,606 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:10:24,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:10:24,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:10:24,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:10:24,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:10:24,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-14 07:10:24,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:10:24,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:10:24,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:10:24,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:10:24,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:10:24,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:10:24,616 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:10:24,616 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:10:24,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:10:24,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:10:24,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:10:24,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:10:24,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 07:10:24,639 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1030358090] [2020-10-14 07:10:24,642 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:10:24,643 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-14 07:10:24,644 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708164580] [2020-10-14 07:10:24,655 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-14 07:10:24,655 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:10:24,681 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-14 07:10:24,683 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-14 07:10:24,687 INFO L87 Difference]: Start difference. First operand 178 states. Second operand 3 states. [2020-10-14 07:10:26,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:10:26,038 INFO L93 Difference]: Finished difference Result 314 states and 413 transitions. [2020-10-14 07:10:26,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-14 07:10:26,040 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2020-10-14 07:10:26,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:10:26,055 INFO L225 Difference]: With dead ends: 314 [2020-10-14 07:10:26,055 INFO L226 Difference]: Without dead ends: 170 [2020-10-14 07:10:26,060 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-14 07:10:26,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2020-10-14 07:10:26,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 135. [2020-10-14 07:10:26,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 135 states. [2020-10-14 07:10:26,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 160 transitions. [2020-10-14 07:10:26,150 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 160 transitions. Word has length 52 [2020-10-14 07:10:26,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:10:26,151 INFO L479 AbstractCegarLoop]: Abstraction has 135 states and 160 transitions. [2020-10-14 07:10:26,151 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-14 07:10:26,151 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 160 transitions. [2020-10-14 07:10:26,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-10-14 07:10:26,158 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:10:26,158 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] [2020-10-14 07:10:26,159 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 07:10:26,161 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:10:26,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:10:26,161 INFO L82 PathProgramCache]: Analyzing trace with hash 1405243585, now seen corresponding path program 1 times [2020-10-14 07:10:26,162 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:10:26,162 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [870269059] [2020-10-14 07:10:26,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:10:26,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:10:26,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:10:26,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:10:26,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:10:28,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:10:28,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-14 07:10:28,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 07:10:28,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1889 [2020-10-14 07:10:28,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:10:28,106 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:10:28,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:10:28,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-10-14 07:10:28,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-14 07:10:28,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:10:28,391 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-14 07:10:28,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:10:28,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:10:28,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:10:28,419 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:10:28,420 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:10:28,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:10:28,420 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-14 07:10:28,420 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:10:28,421 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:10:28,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:10:28,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:10:28,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:10:28,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:10:28,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:10:28,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:10:28,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:10:28,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:10:28,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:10:28,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:10:28,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:10:28,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:10:28,437 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:10:28,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:10:28,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:10:28,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:10:28,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:10:28,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-14 07:10:28,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:10:28,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:10:28,441 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:10:28,441 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:10:28,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:10:28,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:10:28,442 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:10:28,443 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:10:28,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:10:28,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:10:28,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:10:28,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:10:28,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 07:10:28,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:10:28,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:10:28,447 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:10:28,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:10:28,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:10:28,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:10:28,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:10:28,448 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:10:28,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:10:28,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:10:28,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:10:28,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:10:28,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 07:10:28,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:10:28,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:10:28,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:10:28,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:10:28,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:10:28,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 07:10:28,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:10:28,453 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:10:28,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:10:28,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:10:28,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:10:28,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:10:28,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-14 07:10:28,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:10:28,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:10:28,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:10:28,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:10:28,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:10:28,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:10:28,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:10:28,460 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:10:28,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:10:28,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:10:28,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:10:28,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:10:28,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-14 07:10:28,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:10:28,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:10:28,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:10:28,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:10:28,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:10:28,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:10:28,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:10:28,466 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:10:28,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:10:28,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:10:28,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:10:28,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:10:28,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-14 07:10:28,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:10:28,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:10:28,470 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:10:28,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:10:28,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:10:28,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:10:28,471 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:10:28,471 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:10:28,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:10:28,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:10:28,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:10:28,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:10:28,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 07:10:28,482 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [870269059] [2020-10-14 07:10:28,482 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:10:28,482 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 07:10:28,482 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006963879] [2020-10-14 07:10:28,484 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 07:10:28,484 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:10:28,485 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 07:10:28,485 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 07:10:28,485 INFO L87 Difference]: Start difference. First operand 135 states and 160 transitions. Second operand 4 states. [2020-10-14 07:10:28,877 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-14 07:10:29,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:10:29,815 INFO L93 Difference]: Finished difference Result 237 states and 292 transitions. [2020-10-14 07:10:29,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 07:10:29,816 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2020-10-14 07:10:29,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:10:29,818 INFO L225 Difference]: With dead ends: 237 [2020-10-14 07:10:29,819 INFO L226 Difference]: Without dead ends: 154 [2020-10-14 07:10:29,820 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-14 07:10:29,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2020-10-14 07:10:29,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 126. [2020-10-14 07:10:29,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2020-10-14 07:10:29,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 148 transitions. [2020-10-14 07:10:29,867 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 148 transitions. Word has length 53 [2020-10-14 07:10:29,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:10:29,868 INFO L479 AbstractCegarLoop]: Abstraction has 126 states and 148 transitions. [2020-10-14 07:10:29,868 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 07:10:29,868 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 148 transitions. [2020-10-14 07:10:29,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-10-14 07:10:29,871 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:10:29,871 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] [2020-10-14 07:10:29,871 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 07:10:29,871 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:10:29,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:10:29,872 INFO L82 PathProgramCache]: Analyzing trace with hash 340068721, now seen corresponding path program 1 times [2020-10-14 07:10:29,872 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:10:29,872 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [952883154] [2020-10-14 07:10:29,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:10:29,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:10:29,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:10:30,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:10:30,914 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:10:30,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-14 07:10:30,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 07:10:30,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1013 [2020-10-14 07:10:30,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:10:30,916 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:10:30,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 07:10:30,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:10:30,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-10-14 07:10:30,917 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:10:31,265 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-14 07:10:31,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:10:31,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:10:31,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:10:31,363 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:10:31,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:10:31,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:10:31,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-10-14 07:10:31,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:10:31,364 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:10:31,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:10:31,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:10:31,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 07:10:31,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:10:31,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:10:31,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:10:31,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:10:31,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:10:31,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:10:31,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:10:31,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:10:31,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:10:31,388 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:10:31,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:10:31,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:10:31,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 07:10:31,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:10:31,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-14 07:10:31,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:10:31,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:10:31,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:10:31,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:10:31,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:10:31,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:10:31,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:10:31,394 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:10:31,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:10:31,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:10:31,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 07:10:31,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:10:31,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 07:10:31,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:10:31,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:10:31,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:10:31,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:10:31,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:10:31,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:10:31,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:10:31,400 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:10:31,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:10:31,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:10:31,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 07:10:31,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:10:31,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 07:10:31,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:10:31,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:10:31,404 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:10:31,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:10:31,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:10:31,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:10:31,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:10:31,406 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:10:31,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:10:31,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:10:31,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 07:10:31,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:10:31,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-14 07:10:31,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:10:31,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:10:31,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:10:31,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:10:31,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:10:31,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:10:31,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:10:31,411 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:10:31,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:10:31,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:10:31,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:10:31,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:10:31,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-14 07:10:31,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:10:31,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:10:31,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:10:31,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:10:31,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:10:31,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:10:31,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:10:31,416 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:10:31,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:10:31,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:10:31,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:10:31,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:10:31,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-14 07:10:31,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:10:31,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:10:31,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:10:31,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:10:31,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:10:31,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:10:31,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:10:31,421 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:10:31,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:10:31,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:10:31,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:10:31,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:10:31,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 07:10:31,430 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [952883154] [2020-10-14 07:10:31,431 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:10:31,431 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 07:10:31,431 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693043938] [2020-10-14 07:10:31,432 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 07:10:31,432 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:10:31,432 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 07:10:31,433 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 07:10:31,433 INFO L87 Difference]: Start difference. First operand 126 states and 148 transitions. Second operand 4 states. [2020-10-14 07:10:31,726 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-14 07:10:33,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:10:33,356 INFO L93 Difference]: Finished difference Result 370 states and 460 transitions. [2020-10-14 07:10:33,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 07:10:33,356 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 58 [2020-10-14 07:10:33,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:10:33,360 INFO L225 Difference]: With dead ends: 370 [2020-10-14 07:10:33,360 INFO L226 Difference]: Without dead ends: 268 [2020-10-14 07:10:33,361 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-14 07:10:33,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2020-10-14 07:10:33,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 218. [2020-10-14 07:10:33,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2020-10-14 07:10:33,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 263 transitions. [2020-10-14 07:10:33,435 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 263 transitions. Word has length 58 [2020-10-14 07:10:33,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:10:33,435 INFO L479 AbstractCegarLoop]: Abstraction has 218 states and 263 transitions. [2020-10-14 07:10:33,436 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 07:10:33,436 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 263 transitions. [2020-10-14 07:10:33,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-10-14 07:10:33,439 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:10:33,439 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] [2020-10-14 07:10:33,439 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 07:10:33,439 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:10:33,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:10:33,440 INFO L82 PathProgramCache]: Analyzing trace with hash -805179876, now seen corresponding path program 1 times [2020-10-14 07:10:33,440 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:10:33,440 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [805367787] [2020-10-14 07:10:33,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:10:33,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:10:33,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:10:34,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:10:34,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-14 07:10:34,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:10:34,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 964 [2020-10-14 07:10:34,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:10:34,435 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:10:34,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-14 07:10:34,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:10:34,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-14 07:10:34,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:10:34,690 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-14 07:10:34,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:10:34,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:10:34,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:10:34,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:10:34,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:10:34,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:10:34,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-10-14 07:10:34,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:10:34,770 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:10:34,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:10:34,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:10:34,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 07:10:34,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:10:34,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:10:34,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:10:34,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:10:34,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:10:34,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:10:34,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:10:34,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:10:34,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:10:34,790 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:10:34,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:10:34,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:10:34,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 07:10:34,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:10:34,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-14 07:10:34,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:10:34,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:10:34,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:10:34,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:10:34,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:10:34,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:10:34,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:10:34,806 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:10:34,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:10:34,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:10:34,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 07:10:34,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:10:34,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 07:10:34,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:10:34,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:10:34,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:10:34,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:10:34,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:10:34,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:10:34,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:10:34,815 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:10:34,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:10:34,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:10:34,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 07:10:34,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:10:34,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 07:10:34,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:10:34,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:10:34,820 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:10:34,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:10:34,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:10:34,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:10:34,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:10:34,822 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:10:34,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:10:34,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:10:34,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 07:10:34,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:10:34,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-14 07:10:34,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:10:34,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:10:34,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:10:34,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:10:34,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:10:34,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:10:34,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:10:34,846 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:10:34,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:10:34,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:10:34,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:10:34,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:10:34,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-14 07:10:34,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:10:34,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:10:34,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:10:34,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:10:34,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:10:34,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:10:34,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:10:34,853 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:10:34,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:10:34,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:10:34,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 07:10:34,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:10:34,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-14 07:10:34,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:10:34,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:10:34,860 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:10:34,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:10:34,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:10:34,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:10:34,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:10:34,861 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:10:34,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:10:34,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:10:34,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 07:10:34,862 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:10:34,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-14 07:10:34,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:10:34,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:10:34,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:10:34,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:10:34,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:10:34,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:10:34,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:10:34,904 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:10:34,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:10:34,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:10:34,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:10:34,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:10:34,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 07:10:34,920 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [805367787] [2020-10-14 07:10:34,920 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:10:34,920 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-14 07:10:34,921 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210474831] [2020-10-14 07:10:34,921 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 07:10:34,921 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:10:34,922 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 07:10:34,922 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-14 07:10:34,922 INFO L87 Difference]: Start difference. First operand 218 states and 263 transitions. Second operand 8 states. [2020-10-14 07:10:35,311 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-14 07:10:36,590 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-10-14 07:10:36,965 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-14 07:10:37,284 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-14 07:10:37,554 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-14 07:10:38,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:10:38,357 INFO L93 Difference]: Finished difference Result 677 states and 886 transitions. [2020-10-14 07:10:38,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 07:10:38,358 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 63 [2020-10-14 07:10:38,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:10:38,364 INFO L225 Difference]: With dead ends: 677 [2020-10-14 07:10:38,364 INFO L226 Difference]: Without dead ends: 483 [2020-10-14 07:10:38,366 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2020-10-14 07:10:38,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2020-10-14 07:10:38,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 415. [2020-10-14 07:10:38,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 415 states. [2020-10-14 07:10:38,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 415 states and 513 transitions. [2020-10-14 07:10:38,473 INFO L78 Accepts]: Start accepts. Automaton has 415 states and 513 transitions. Word has length 63 [2020-10-14 07:10:38,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:10:38,474 INFO L479 AbstractCegarLoop]: Abstraction has 415 states and 513 transitions. [2020-10-14 07:10:38,474 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 07:10:38,474 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 513 transitions. [2020-10-14 07:10:38,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-10-14 07:10:38,477 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:10:38,477 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:10:38,477 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 07:10:38,477 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:10:38,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:10:38,478 INFO L82 PathProgramCache]: Analyzing trace with hash 1401738146, now seen corresponding path program 1 times [2020-10-14 07:10:38,478 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:10:38,478 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [67047114] [2020-10-14 07:10:38,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:10:38,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:10:38,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:10:38,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:10:39,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:10:41,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:10:43,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:10:43,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-14 07:10:43,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 07:10:43,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-10-14 07:10:43,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:10:43,504 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:10:43,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 07:10:43,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 61 [2020-10-14 07:10:43,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-14 07:10:43,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:10:43,784 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-14 07:10:43,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:10:43,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:10:43,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:10:43,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:10:43,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:10:43,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:10:43,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-14 07:10:43,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:10:43,814 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:10:43,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:10:43,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:10:43,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:10:43,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:10:43,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:10:43,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:10:43,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:10:43,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:10:43,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:10:43,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:10:43,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 07:10:43,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:10:43,829 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:10:43,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:10:43,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:10:43,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:10:43,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:10:43,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-14 07:10:43,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:10:43,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:10:43,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:10:43,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:10:43,833 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:10:43,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 07:10:43,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:10:43,833 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:10:43,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:10:43,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:10:43,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:10:43,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:10:43,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 07:10:43,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:10:43,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:10:43,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:10:43,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:10:43,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:10:43,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 07:10:43,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:10:43,837 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:10:43,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:10:43,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:10:43,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:10:43,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:10:43,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 07:10:43,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:10:43,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:10:43,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:10:43,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:10:43,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:10:43,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 07:10:43,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:10:43,841 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:10:43,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:10:43,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:10:43,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:10:43,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:10:43,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-14 07:10:43,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:10:43,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:10:43,857 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:10:43,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:10:43,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:10:43,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:10:43,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:10:43,858 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:10:43,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:10:43,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:10:43,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:10:43,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:10:43,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-14 07:10:43,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:10:43,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:10:43,873 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:10:43,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:10:43,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:10:43,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:10:43,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:10:43,874 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:10:43,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:10:43,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:10:43,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 07:10:43,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:10:43,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-14 07:10:43,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:10:43,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:10:43,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:10:43,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:10:43,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:10:43,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:10:43,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:10:43,880 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:10:43,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:10:43,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:10:43,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 07:10:43,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:10:43,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-14 07:10:43,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:10:43,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:10:43,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:10:43,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:10:43,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:10:43,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:10:43,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:10:43,886 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:10:43,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:10:43,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:10:43,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 07:10:43,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:10:43,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-14 07:10:43,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:10:43,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:10:43,894 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:10:43,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:10:43,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:10:43,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:10:43,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:10:43,895 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:10:43,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:10:43,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:10:43,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 07:10:43,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:10:43,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 07:10:43,920 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [67047114] [2020-10-14 07:10:43,920 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:10:43,920 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 07:10:43,921 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768117999] [2020-10-14 07:10:43,921 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 07:10:43,921 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:10:43,922 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 07:10:43,922 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-10-14 07:10:43,922 INFO L87 Difference]: Start difference. First operand 415 states and 513 transitions. Second operand 9 states. [2020-10-14 07:10:44,785 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-14 07:10:46,183 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-10-14 07:10:46,456 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-14 07:10:46,768 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-10-14 07:10:47,070 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-10-14 07:10:47,449 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-14 07:10:48,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:10:48,627 INFO L93 Difference]: Finished difference Result 1142 states and 1541 transitions. [2020-10-14 07:10:48,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-14 07:10:48,628 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 67 [2020-10-14 07:10:48,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:10:48,636 INFO L225 Difference]: With dead ends: 1142 [2020-10-14 07:10:48,636 INFO L226 Difference]: Without dead ends: 751 [2020-10-14 07:10:48,637 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=100, Invalid=242, Unknown=0, NotChecked=0, Total=342 [2020-10-14 07:10:48,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 751 states. [2020-10-14 07:10:48,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 751 to 647. [2020-10-14 07:10:48,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 647 states. [2020-10-14 07:10:48,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 647 states to 647 states and 800 transitions. [2020-10-14 07:10:48,792 INFO L78 Accepts]: Start accepts. Automaton has 647 states and 800 transitions. Word has length 67 [2020-10-14 07:10:48,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:10:48,792 INFO L479 AbstractCegarLoop]: Abstraction has 647 states and 800 transitions. [2020-10-14 07:10:48,792 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 07:10:48,792 INFO L276 IsEmpty]: Start isEmpty. Operand 647 states and 800 transitions. [2020-10-14 07:10:48,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-10-14 07:10:48,795 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:10:48,795 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:10:48,796 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 07:10:48,796 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:10:48,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:10:48,796 INFO L82 PathProgramCache]: Analyzing trace with hash -1293290686, now seen corresponding path program 1 times [2020-10-14 07:10:48,797 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:10:48,797 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [208137609] [2020-10-14 07:10:48,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:10:48,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-14 07:10:48,830 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-14 07:10:48,830 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-14 07:10:48,834 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 07:10:48,856 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 07:10:48 BoogieIcfgContainer [2020-10-14 07:10:48,856 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-14 07:10:48,858 INFO L168 Benchmark]: Toolchain (without parser) took 29646.88 ms. Allocated memory was 148.9 MB in the beginning and 744.0 MB in the end (delta: 595.1 MB). Free memory was 103.7 MB in the beginning and 299.8 MB in the end (delta: -196.1 MB). Peak memory consumption was 399.0 MB. Max. memory is 7.1 GB. [2020-10-14 07:10:48,859 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 148.9 MB. Free memory was 123.4 MB in the beginning and 123.0 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. [2020-10-14 07:10:48,860 INFO L168 Benchmark]: CACSL2BoogieTranslator took 760.72 ms. Allocated memory was 148.9 MB in the beginning and 205.0 MB in the end (delta: 56.1 MB). Free memory was 103.7 MB in the beginning and 171.8 MB in the end (delta: -68.1 MB). Peak memory consumption was 22.2 MB. Max. memory is 7.1 GB. [2020-10-14 07:10:48,860 INFO L168 Benchmark]: Boogie Preprocessor took 110.84 ms. Allocated memory is still 205.0 MB. Free memory was 171.8 MB in the beginning and 168.0 MB in the end (delta: 3.7 MB). Peak memory consumption was 3.7 MB. Max. memory is 7.1 GB. [2020-10-14 07:10:48,861 INFO L168 Benchmark]: RCFGBuilder took 1155.11 ms. Allocated memory was 205.0 MB in the beginning and 232.3 MB in the end (delta: 27.3 MB). Free memory was 168.0 MB in the beginning and 187.2 MB in the end (delta: -19.2 MB). Peak memory consumption was 77.8 MB. Max. memory is 7.1 GB. [2020-10-14 07:10:48,862 INFO L168 Benchmark]: TraceAbstraction took 27614.33 ms. Allocated memory was 232.3 MB in the beginning and 744.0 MB in the end (delta: 511.7 MB). Free memory was 185.7 MB in the beginning and 299.8 MB in the end (delta: -114.1 MB). Peak memory consumption was 397.6 MB. Max. memory is 7.1 GB. [2020-10-14 07:10:48,866 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 148.9 MB. Free memory was 123.4 MB in the beginning and 123.0 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 760.72 ms. Allocated memory was 148.9 MB in the beginning and 205.0 MB in the end (delta: 56.1 MB). Free memory was 103.7 MB in the beginning and 171.8 MB in the end (delta: -68.1 MB). Peak memory consumption was 22.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 110.84 ms. Allocated memory is still 205.0 MB. Free memory was 171.8 MB in the beginning and 168.0 MB in the end (delta: 3.7 MB). Peak memory consumption was 3.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1155.11 ms. Allocated memory was 205.0 MB in the beginning and 232.3 MB in the end (delta: 27.3 MB). Free memory was 168.0 MB in the beginning and 187.2 MB in the end (delta: -19.2 MB). Peak memory consumption was 77.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 27614.33 ms. Allocated memory was 232.3 MB in the beginning and 744.0 MB in the end (delta: 511.7 MB). Free memory was 185.7 MB in the beginning and 299.8 MB in the end (delta: -114.1 MB). Peak memory consumption was 397.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 44]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L60] int pumpRunning = 0; [L61] int systemActive = 1; [L369] int cleanupTimeShifts = 4; [L637] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L834] int waterLevel = 1; [L835] int methaneLevelCritical = 0; [L445] int retValue_acc ; [L446] int tmp ; [L450] FCALL select_helpers() [L451] FCALL select_features() [L452] CALL, EXPR valid_product() [L949] int retValue_acc ; [L952] retValue_acc = 1 [L953] return (retValue_acc); [L452] RET, EXPR valid_product() [L452] tmp = valid_product() [L454] COND TRUE \read(tmp) [L456] FCALL setup() [L457] CALL runTest() [L436] CALL test() [L266] int splverifierCounter ; [L267] int tmp ; [L268] int tmp___0 ; [L269] int tmp___1 ; [L270] int tmp___2 ; [L273] splverifierCounter = 0 [L275] COND TRUE 1 [L277] COND TRUE splverifierCounter < 4 [L283] tmp = __VERIFIER_nondet_int() [L285] COND TRUE \read(tmp) [L287] CALL waterRise() [L852] COND TRUE waterLevel < 2 [L853] waterLevel = waterLevel + 1 [L287] RET waterRise() [L293] tmp___0 = __VERIFIER_nondet_int() [L295] COND FALSE !(\read(tmp___0)) [L303] tmp___2 = __VERIFIER_nondet_int() [L305] COND FALSE !(\read(tmp___2)) [L311] tmp___1 = __VERIFIER_nondet_int() [L313] COND TRUE \read(tmp___1) [L315] CALL stopSystem() [L242] COND FALSE !(\read(pumpRunning)) [L249] systemActive = 0 [L315] RET stopSystem() [L322] CALL timeShift() [L68] COND FALSE !(\read(pumpRunning)) [L75] COND FALSE !(\read(systemActive)) [L83] CALL __utac_acc__Specification3_spec__1() [L336] int tmp ; [L337] int tmp___0 ; [L338] int tmp___1 ; [L342] CALL, EXPR isMethaneLevelCritical() [L873] int retValue_acc ; [L876] retValue_acc = methaneLevelCritical [L877] return (retValue_acc); [L342] RET, EXPR isMethaneLevelCritical() [L342] tmp = isMethaneLevelCritical() [L344] COND FALSE !(\read(tmp)) [L348] CALL, EXPR getWaterLevel() [L905] int retValue_acc ; [L908] retValue_acc = waterLevel [L909] return (retValue_acc); [L348] RET, EXPR getWaterLevel() [L348] tmp___0 = getWaterLevel() [L350] COND TRUE tmp___0 == 2 [L352] CALL, EXPR isPumpRunning() [L175] int retValue_acc ; [L178] retValue_acc = pumpRunning [L179] return (retValue_acc); [L352] RET, EXPR isPumpRunning() [L352] tmp___1 = isPumpRunning() [L354] COND FALSE !(\read(tmp___1)) [L358] CALL __automaton_fail() [L44] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 40 procedures, 237 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 27.5s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 12.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 717 SDtfs, 835 SDslu, 613 SDs, 0 SdLazy, 2545 SolverSat, 581 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 134 GetRequests, 97 SyntacticMatches, 1 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 4.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=647occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 5 MinimizatonAttempts, 285 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 13.6s InterpolantComputationTime, 360 NumberOfCodeBlocks, 360 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 288 ConstructedInterpolants, 0 QuantifiedInterpolants, 85174 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...