/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 --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 interpolation-heuristic=FIRST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product12.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-eb0fd7c [2020-09-21 11:09:39,487 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-21 11:09:39,491 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-21 11:09:39,534 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-21 11:09:39,536 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-21 11:09:39,544 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-21 11:09:39,546 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-21 11:09:39,550 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-21 11:09:39,554 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-21 11:09:39,557 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-21 11:09:39,558 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-21 11:09:39,559 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-21 11:09:39,560 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-21 11:09:39,563 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-21 11:09:39,566 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-21 11:09:39,568 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-21 11:09:39,570 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-21 11:09:39,571 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-21 11:09:39,572 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-21 11:09:39,582 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-21 11:09:39,585 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-21 11:09:39,586 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-21 11:09:39,587 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-21 11:09:39,588 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-21 11:09:39,601 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-21 11:09:39,601 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-21 11:09:39,601 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-21 11:09:39,604 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-21 11:09:39,605 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-21 11:09:39,608 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-21 11:09:39,608 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-21 11:09:39,609 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-21 11:09:39,610 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-21 11:09:39,611 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-21 11:09:39,613 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-21 11:09:39,613 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-21 11:09:39,614 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-21 11:09:39,614 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-21 11:09:39,614 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-21 11:09:39,616 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-21 11:09:39,617 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-21 11:09:39,618 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-21 11:09:39,664 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-21 11:09:39,664 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-21 11:09:39,667 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-21 11:09:39,668 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-21 11:09:39,668 INFO L138 SettingsManager]: * Use SBE=true [2020-09-21 11:09:39,668 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-21 11:09:39,669 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-21 11:09:39,669 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-21 11:09:39,669 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-21 11:09:39,669 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-21 11:09:39,670 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-21 11:09:39,671 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-21 11:09:39,671 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-21 11:09:39,671 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-21 11:09:39,672 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-21 11:09:39,672 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-21 11:09:39,672 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-21 11:09:39,672 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-21 11:09:39,672 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-21 11:09:39,673 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-21 11:09:39,673 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-21 11:09:39,673 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 11:09:39,673 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-21 11:09:39,674 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-21 11:09:39,674 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-21 11:09:39,674 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-21 11:09:39,674 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-21 11:09:39,675 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-21 11:09:39,675 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-21 11:09:39,675 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.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;interpolation-heuristic=FIRST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; [2020-09-21 11:09:40,134 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-21 11:09:40,155 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-21 11:09:40,160 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-21 11:09:40,162 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-21 11:09:40,162 INFO L275 PluginConnector]: CDTParser initialized [2020-09-21 11:09:40,163 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product12.cil.c [2020-09-21 11:09:40,242 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8e7cd1ebf/5902e13cadac46df8542dc0f5cb2987c/FLAG6a1c088b2 [2020-09-21 11:09:40,900 INFO L306 CDTParser]: Found 1 translation units. [2020-09-21 11:09:40,906 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product12.cil.c [2020-09-21 11:09:40,927 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8e7cd1ebf/5902e13cadac46df8542dc0f5cb2987c/FLAG6a1c088b2 [2020-09-21 11:09:41,157 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8e7cd1ebf/5902e13cadac46df8542dc0f5cb2987c [2020-09-21 11:09:41,169 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-21 11:09:41,175 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-21 11:09:41,176 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-21 11:09:41,177 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-21 11:09:41,181 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-21 11:09:41,182 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 11:09:41" (1/1) ... [2020-09-21 11:09:41,186 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4fc06ef1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:09:41, skipping insertion in model container [2020-09-21 11:09:41,187 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 11:09:41" (1/1) ... [2020-09-21 11:09:41,196 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-21 11:09:41,264 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-21 11:09:41,763 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 11:09:41,782 INFO L203 MainTranslator]: Completed pre-run [2020-09-21 11:09:41,857 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 11:09:41,896 INFO L208 MainTranslator]: Completed translation [2020-09-21 11:09:41,896 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:09:41 WrapperNode [2020-09-21 11:09:41,897 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-21 11:09:41,897 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-21 11:09:41,898 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-21 11:09:41,898 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-21 11:09:41,917 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:09:41" (1/1) ... [2020-09-21 11:09:41,917 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:09:41" (1/1) ... [2020-09-21 11:09:41,940 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:09:41" (1/1) ... [2020-09-21 11:09:41,941 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:09:41" (1/1) ... [2020-09-21 11:09:41,974 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:09:41" (1/1) ... [2020-09-21 11:09:41,986 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:09:41" (1/1) ... [2020-09-21 11:09:41,991 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:09:41" (1/1) ... [2020-09-21 11:09:42,003 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-21 11:09:42,004 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-21 11:09:42,004 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-21 11:09:42,005 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-21 11:09:42,006 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:09:41" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 11:09:42,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-21 11:09:42,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-21 11:09:42,088 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-21 11:09:42,088 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-21 11:09:42,088 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-21 11:09:42,088 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-21 11:09:42,088 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-21 11:09:42,089 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__base [2020-09-21 11:09:42,089 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-21 11:09:42,089 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-21 11:09:42,089 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-21 11:09:42,089 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-21 11:09:42,090 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-21 11:09:42,090 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-21 11:09:42,090 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-21 11:09:42,090 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-21 11:09:42,090 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-21 11:09:42,091 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-21 11:09:42,091 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-21 11:09:42,091 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-21 11:09:42,091 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-21 11:09:42,091 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-21 11:09:42,091 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-21 11:09:42,091 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-21 11:09:42,092 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-21 11:09:42,092 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-21 11:09:42,092 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-21 11:09:42,092 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-21 11:09:42,092 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-21 11:09:42,093 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-21 11:09:42,093 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-21 11:09:42,093 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-21 11:09:42,093 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-21 11:09:42,093 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-21 11:09:42,093 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-21 11:09:42,093 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-21 11:09:42,093 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-21 11:09:42,093 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-21 11:09:42,094 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-21 11:09:42,094 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-21 11:09:42,094 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-21 11:09:42,094 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-21 11:09:42,094 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-21 11:09:42,094 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-21 11:09:42,094 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-21 11:09:42,094 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-21 11:09:42,095 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-21 11:09:42,095 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-21 11:09:42,095 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-21 11:09:42,095 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-21 11:09:42,095 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-21 11:09:42,095 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-21 11:09:42,096 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-21 11:09:42,096 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-21 11:09:42,096 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-21 11:09:42,096 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-21 11:09:42,096 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-21 11:09:42,096 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-21 11:09:42,097 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__base [2020-09-21 11:09:42,097 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-21 11:09:42,097 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-21 11:09:42,097 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-21 11:09:42,097 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-21 11:09:42,097 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-21 11:09:42,098 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-21 11:09:42,098 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-21 11:09:42,098 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-21 11:09:42,098 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-21 11:09:42,098 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-21 11:09:42,098 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-21 11:09:42,099 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-21 11:09:42,099 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-21 11:09:42,099 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-21 11:09:42,099 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-21 11:09:42,099 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-21 11:09:42,099 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-21 11:09:42,100 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-21 11:09:42,100 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-21 11:09:42,100 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-21 11:09:42,100 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-21 11:09:42,100 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-21 11:09:42,100 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-21 11:09:42,101 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-21 11:09:42,101 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-21 11:09:42,101 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-21 11:09:42,101 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-21 11:09:42,101 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-21 11:09:42,101 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-21 11:09:43,169 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-21 11:09:43,169 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-21 11:09:43,175 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 11:09:43 BoogieIcfgContainer [2020-09-21 11:09:43,176 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-21 11:09:43,177 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-21 11:09:43,177 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-21 11:09:43,181 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-21 11:09:43,182 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 11:09:41" (1/3) ... [2020-09-21 11:09:43,183 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@201d1a0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 11:09:43, skipping insertion in model container [2020-09-21 11:09:43,183 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:09:41" (2/3) ... [2020-09-21 11:09:43,183 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@201d1a0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 11:09:43, skipping insertion in model container [2020-09-21 11:09:43,183 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 11:09:43" (3/3) ... [2020-09-21 11:09:43,186 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product12.cil.c [2020-09-21 11:09:43,198 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-21 11:09:43,208 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-21 11:09:43,232 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-21 11:09:43,262 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-21 11:09:43,262 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-21 11:09:43,262 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-21 11:09:43,262 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-21 11:09:43,263 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-21 11:09:43,263 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-21 11:09:43,263 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-21 11:09:43,263 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-21 11:09:43,288 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states. [2020-09-21 11:09:43,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-09-21 11:09:43,299 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:09:43,300 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] [2020-09-21 11:09:43,300 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:09:43,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:09:43,307 INFO L82 PathProgramCache]: Analyzing trace with hash 1715921214, now seen corresponding path program 1 times [2020-09-21 11:09:43,319 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:09:43,320 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1492955775] [2020-09-21 11:09:43,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:09:43,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:43,688 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:43,689 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:43,689 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:43,689 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:43,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-21 11:09:43,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:43,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-21 11:09:43,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:43,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:43,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 43 [2020-09-21 11:09:43,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:43,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:09:44,170 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:09:44,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:09:44,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:44,210 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:44,210 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:44,211 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:44,212 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:44,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:44,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:44,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:09:44,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:44,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:44,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:44,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:44,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:09:44,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:09:44,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:44,340 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:44,340 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:44,340 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:44,343 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:44,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:09:44,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:44,343 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:09:44,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:44,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:44,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:44,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:44,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:44,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:09:44,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:44,351 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:44,353 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:44,353 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:44,354 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:44,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:09:44,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:44,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:09:44,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:44,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:44,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:44,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:44,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:09:44,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:09:44,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:44,363 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:44,363 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:44,364 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:44,364 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:44,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:44,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:44,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:09:44,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:44,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:44,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:44,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:44,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:09:44,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:09:44,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:44,374 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:44,374 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:44,374 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:44,375 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:44,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:09:44,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:44,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:09:44,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:44,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:44,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:44,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:44,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:09:44,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-09-21 11:09:44,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:44,383 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:44,383 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:44,383 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:44,384 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:44,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:44,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:44,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:44,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:44,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:44,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:09:44,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:44,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:09:44,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-09-21 11:09:44,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:44,395 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:44,395 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:44,395 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:44,395 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:44,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:44,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:44,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:44,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:44,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:44,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:09:44,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:44,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:09:44,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-21 11:09:44,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:44,405 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:44,405 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:44,406 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:44,406 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:44,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:44,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:44,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:09:44,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:44,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:44,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:09:44,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:44,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:09:44,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:09:44,451 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1492955775] [2020-09-21 11:09:44,453 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:09:44,453 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-21 11:09:44,454 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487874967] [2020-09-21 11:09:44,461 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-21 11:09:44,462 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:09:44,479 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-21 11:09:44,480 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-21 11:09:44,483 INFO L87 Difference]: Start difference. First operand 154 states. Second operand 3 states. [2020-09-21 11:09:45,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:09:45,581 INFO L93 Difference]: Finished difference Result 240 states and 317 transitions. [2020-09-21 11:09:45,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-21 11:09:45,584 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2020-09-21 11:09:45,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:09:45,600 INFO L225 Difference]: With dead ends: 240 [2020-09-21 11:09:45,600 INFO L226 Difference]: Without dead ends: 131 [2020-09-21 11:09:45,605 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-21 11:09:45,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2020-09-21 11:09:45,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 100. [2020-09-21 11:09:45,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2020-09-21 11:09:45,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 115 transitions. [2020-09-21 11:09:45,692 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 115 transitions. Word has length 52 [2020-09-21 11:09:45,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:09:45,692 INFO L479 AbstractCegarLoop]: Abstraction has 100 states and 115 transitions. [2020-09-21 11:09:45,693 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-21 11:09:45,693 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 115 transitions. [2020-09-21 11:09:45,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-09-21 11:09:45,697 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:09:45,697 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] [2020-09-21 11:09:45,697 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-21 11:09:45,697 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:09:45,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:09:45,698 INFO L82 PathProgramCache]: Analyzing trace with hash 1789709038, now seen corresponding path program 1 times [2020-09-21 11:09:45,698 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:09:45,699 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [344040245] [2020-09-21 11:09:45,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:09:45,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:45,765 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:45,766 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:45,766 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:45,766 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:45,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-21 11:09:45,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:45,767 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 11:09:45,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:45,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:09:45,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-09-21 11:09:45,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 11:09:45,768 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:46,061 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:09:46,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:09:46,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:46,072 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:46,073 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:46,073 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:46,074 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:46,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:46,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:46,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:09:46,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:46,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:46,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:46,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:46,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:46,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:09:46,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:46,142 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:46,142 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:46,142 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:46,143 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:46,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:09:46,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:46,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:09:46,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:46,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:46,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:46,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:46,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:46,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:09:46,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:46,149 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:46,149 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:46,149 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:46,150 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:46,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:09:46,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:46,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:46,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:46,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:46,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:46,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:46,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:46,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:09:46,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:46,158 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:46,158 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:46,158 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:46,159 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:46,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:46,159 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:46,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:46,160 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:46,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:46,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:46,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:46,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:46,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:09:46,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:46,164 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:46,164 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:46,164 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:46,165 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:46,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:09:46,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:46,165 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:46,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:46,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:46,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:46,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:46,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:46,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-21 11:09:46,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:46,171 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:46,171 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:46,171 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:46,171 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:46,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:46,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:46,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:46,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:46,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:46,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:09:46,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:46,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:46,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-09-21 11:09:46,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:46,179 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:46,180 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:46,180 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:46,180 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:46,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:46,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:46,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:46,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:46,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:46,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:09:46,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:46,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:46,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-09-21 11:09:46,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:46,190 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:46,192 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:46,192 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:46,193 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:46,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:46,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:46,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:09:46,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:46,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:46,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:09:46,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:46,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:46,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:09:46,205 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [344040245] [2020-09-21 11:09:46,206 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:09:46,206 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-21 11:09:46,207 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371587070] [2020-09-21 11:09:46,210 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-21 11:09:46,210 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:09:46,211 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-21 11:09:46,211 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-21 11:09:46,211 INFO L87 Difference]: Start difference. First operand 100 states and 115 transitions. Second operand 4 states. [2020-09-21 11:09:46,807 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:09:47,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:09:47,413 INFO L93 Difference]: Finished difference Result 160 states and 194 transitions. [2020-09-21 11:09:47,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 11:09:47,414 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2020-09-21 11:09:47,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:09:47,416 INFO L225 Difference]: With dead ends: 160 [2020-09-21 11:09:47,416 INFO L226 Difference]: Without dead ends: 115 [2020-09-21 11:09:47,418 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-21 11:09:47,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2020-09-21 11:09:47,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 91. [2020-09-21 11:09:47,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2020-09-21 11:09:47,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 103 transitions. [2020-09-21 11:09:47,452 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 103 transitions. Word has length 53 [2020-09-21 11:09:47,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:09:47,452 INFO L479 AbstractCegarLoop]: Abstraction has 91 states and 103 transitions. [2020-09-21 11:09:47,453 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-21 11:09:47,453 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 103 transitions. [2020-09-21 11:09:47,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-09-21 11:09:47,455 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:09:47,455 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] [2020-09-21 11:09:47,455 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-21 11:09:47,456 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:09:47,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:09:47,456 INFO L82 PathProgramCache]: Analyzing trace with hash -1277285199, now seen corresponding path program 1 times [2020-09-21 11:09:47,456 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:09:47,457 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [116514931] [2020-09-21 11:09:47,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:09:47,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:48,077 FATAL L256 erpolLogProxyWrapper]: Difference in size: 4 [2020-09-21 11:09:48,077 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:48,077 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:48,078 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:48,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-09-21 11:09:48,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:48,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 543 [2020-09-21 11:09:48,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:48,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-21 11:09:48,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:09:48,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-21 11:09:48,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:48,431 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:09:48,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:09:48,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:48,497 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:48,498 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:48,498 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:48,498 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:48,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:48,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:48,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-09-21 11:09:48,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:48,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:09:48,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:48,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:09:48,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:48,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:09:48,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:48,542 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:48,543 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:48,543 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:48,543 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:48,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:09:48,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:48,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:48,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:48,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:09:48,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:48,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:09:48,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:48,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:09:48,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:48,549 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:48,549 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:48,549 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:48,549 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:48,550 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:09:48,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:48,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:48,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:48,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:09:48,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:48,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:09:48,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:48,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:09:48,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:48,555 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:48,556 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:48,556 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:48,556 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:48,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:48,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:48,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:48,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:48,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:09:48,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:48,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:09:48,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:48,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:09:48,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:48,566 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:48,566 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:48,566 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:48,566 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:48,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:09:48,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:48,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:48,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:48,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:09:48,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:48,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:09:48,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:48,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-09-21 11:09:48,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:48,571 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:48,571 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:48,572 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:48,572 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:48,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:48,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:48,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:48,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:48,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:48,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:09:48,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:48,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:48,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-21 11:09:48,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:48,577 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:48,578 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:48,578 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:48,578 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:48,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:48,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:48,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:48,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:48,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:48,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:09:48,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:48,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:48,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-09-21 11:09:48,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:48,583 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:48,584 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:48,584 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:48,584 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:48,584 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:48,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:48,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:48,585 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:48,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:48,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:09:48,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:48,586 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:48,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:09:48,595 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [116514931] [2020-09-21 11:09:48,595 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:09:48,596 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-21 11:09:48,596 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205536155] [2020-09-21 11:09:48,596 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-21 11:09:48,597 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:09:48,597 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-21 11:09:48,597 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-21 11:09:48,597 INFO L87 Difference]: Start difference. First operand 91 states and 103 transitions. Second operand 4 states. [2020-09-21 11:09:48,955 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:09:49,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:09:49,972 INFO L93 Difference]: Finished difference Result 257 states and 313 transitions. [2020-09-21 11:09:49,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 11:09:49,973 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 58 [2020-09-21 11:09:49,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:09:49,977 INFO L225 Difference]: With dead ends: 257 [2020-09-21 11:09:49,977 INFO L226 Difference]: Without dead ends: 190 [2020-09-21 11:09:49,978 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 [2020-09-21 11:09:49,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2020-09-21 11:09:50,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 142. [2020-09-21 11:09:50,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 142 states. [2020-09-21 11:09:50,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 165 transitions. [2020-09-21 11:09:50,025 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 165 transitions. Word has length 58 [2020-09-21 11:09:50,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:09:50,025 INFO L479 AbstractCegarLoop]: Abstraction has 142 states and 165 transitions. [2020-09-21 11:09:50,025 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-21 11:09:50,025 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 165 transitions. [2020-09-21 11:09:50,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-09-21 11:09:50,028 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:09:50,028 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] [2020-09-21 11:09:50,028 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-21 11:09:50,028 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:09:50,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:09:50,029 INFO L82 PathProgramCache]: Analyzing trace with hash 2002784121, now seen corresponding path program 1 times [2020-09-21 11:09:50,029 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:09:50,029 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [616910784] [2020-09-21 11:09:50,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:09:50,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:50,465 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:50,465 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:50,465 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:50,465 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:50,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 94 [2020-09-21 11:09:50,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:50,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 389 [2020-09-21 11:09:50,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:50,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-21 11:09:50,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:09:50,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-21 11:09:50,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:50,774 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:09:50,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:09:50,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:50,837 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:50,837 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:50,837 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:50,837 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:50,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:50,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:50,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-09-21 11:09:50,838 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:50,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:09:50,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:50,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:09:50,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:50,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:09:50,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:50,876 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:50,876 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:50,876 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:50,877 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:50,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:09:50,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:50,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:50,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:50,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:09:50,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:50,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:09:50,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:50,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:09:50,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:50,881 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:50,882 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:50,882 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:50,882 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:50,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:09:50,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:50,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:50,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:50,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:09:50,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:50,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:09:50,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:50,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:09:50,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:50,887 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:50,888 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:50,888 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:50,888 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:50,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:50,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:50,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:50,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:50,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:09:50,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:50,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:09:50,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:50,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:09:50,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:50,894 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:50,894 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:50,894 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:50,895 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:50,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:09:50,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:50,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:50,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:50,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:09:50,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:50,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:09:50,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:50,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-09-21 11:09:50,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:50,900 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:50,900 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:50,900 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:50,900 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:50,901 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:09:50,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:50,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:50,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:50,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:09:50,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:50,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:09:50,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:50,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-09-21 11:09:50,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:50,906 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:50,906 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:50,906 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:50,907 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:50,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:50,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:50,907 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:50,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:50,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:09:50,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:50,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:09:50,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:50,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-09-21 11:09:50,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:50,914 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:50,915 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:50,915 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:50,915 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:50,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:50,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:50,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:09:50,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:50,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:09:50,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:50,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:09:50,917 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:50,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-09-21 11:09:50,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:50,938 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:50,939 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:50,939 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:50,939 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:50,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:50,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:50,939 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:50,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:50,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:50,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:09:50,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:50,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:50,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:09:50,950 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [616910784] [2020-09-21 11:09:50,950 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:09:50,950 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-21 11:09:50,950 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589116603] [2020-09-21 11:09:50,951 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 11:09:50,951 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:09:50,951 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 11:09:50,952 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-21 11:09:50,952 INFO L87 Difference]: Start difference. First operand 142 states and 165 transitions. Second operand 7 states. [2020-09-21 11:09:51,442 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:09:52,557 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:09:52,910 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:09:53,234 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:09:53,557 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:09:53,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:09:53,850 INFO L93 Difference]: Finished difference Result 393 states and 492 transitions. [2020-09-21 11:09:53,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-21 11:09:53,850 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 61 [2020-09-21 11:09:53,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:09:53,854 INFO L225 Difference]: With dead ends: 393 [2020-09-21 11:09:53,854 INFO L226 Difference]: Without dead ends: 275 [2020-09-21 11:09:53,856 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2020-09-21 11:09:53,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2020-09-21 11:09:53,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 255. [2020-09-21 11:09:53,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 255 states. [2020-09-21 11:09:53,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 305 transitions. [2020-09-21 11:09:53,918 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 305 transitions. Word has length 61 [2020-09-21 11:09:53,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:09:53,918 INFO L479 AbstractCegarLoop]: Abstraction has 255 states and 305 transitions. [2020-09-21 11:09:53,919 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 11:09:53,919 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 305 transitions. [2020-09-21 11:09:53,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-09-21 11:09:53,922 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:09:53,922 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] [2020-09-21 11:09:53,922 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-21 11:09:53,922 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:09:53,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:09:53,923 INFO L82 PathProgramCache]: Analyzing trace with hash -423236225, now seen corresponding path program 1 times [2020-09-21 11:09:53,923 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:09:53,923 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [567552728] [2020-09-21 11:09:53,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:09:53,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-21 11:09:53,984 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-21 11:09:53,985 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-21 11:09:53,990 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-21 11:09:54,018 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 11:09:54 BoogieIcfgContainer [2020-09-21 11:09:54,018 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-21 11:09:54,021 INFO L168 Benchmark]: Toolchain (without parser) took 12849.12 ms. Allocated memory was 142.1 MB in the beginning and 434.6 MB in the end (delta: 292.6 MB). Free memory was 103.6 MB in the beginning and 199.6 MB in the end (delta: -95.9 MB). Peak memory consumption was 196.6 MB. Max. memory is 7.1 GB. [2020-09-21 11:09:54,022 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 142.1 MB. Free memory was 122.4 MB in the beginning and 122.2 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-21 11:09:54,023 INFO L168 Benchmark]: CACSL2BoogieTranslator took 720.89 ms. Allocated memory was 142.1 MB in the beginning and 205.5 MB in the end (delta: 63.4 MB). Free memory was 102.9 MB in the beginning and 175.7 MB in the end (delta: -72.7 MB). Peak memory consumption was 26.8 MB. Max. memory is 7.1 GB. [2020-09-21 11:09:54,023 INFO L168 Benchmark]: Boogie Preprocessor took 106.34 ms. Allocated memory is still 205.5 MB. Free memory was 175.1 MB in the beginning and 171.1 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.9 MB. Max. memory is 7.1 GB. [2020-09-21 11:09:54,024 INFO L168 Benchmark]: RCFGBuilder took 1171.78 ms. Allocated memory was 205.5 MB in the beginning and 234.9 MB in the end (delta: 29.4 MB). Free memory was 171.1 MB in the beginning and 196.6 MB in the end (delta: -25.4 MB). Peak memory consumption was 80.7 MB. Max. memory is 7.1 GB. [2020-09-21 11:09:54,026 INFO L168 Benchmark]: TraceAbstraction took 10840.92 ms. Allocated memory was 234.9 MB in the beginning and 434.6 MB in the end (delta: 199.8 MB). Free memory was 196.6 MB in the beginning and 199.6 MB in the end (delta: -3.0 MB). Peak memory consumption was 196.7 MB. Max. memory is 7.1 GB. [2020-09-21 11:09:54,029 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 142.1 MB. Free memory was 122.4 MB in the beginning and 122.2 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 720.89 ms. Allocated memory was 142.1 MB in the beginning and 205.5 MB in the end (delta: 63.4 MB). Free memory was 102.9 MB in the beginning and 175.7 MB in the end (delta: -72.7 MB). Peak memory consumption was 26.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 106.34 ms. Allocated memory is still 205.5 MB. Free memory was 175.1 MB in the beginning and 171.1 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1171.78 ms. Allocated memory was 205.5 MB in the beginning and 234.9 MB in the end (delta: 29.4 MB). Free memory was 171.1 MB in the beginning and 196.6 MB in the end (delta: -25.4 MB). Peak memory consumption was 80.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 10840.92 ms. Allocated memory was 234.9 MB in the beginning and 434.6 MB in the end (delta: 199.8 MB). Free memory was 196.6 MB in the beginning and 199.6 MB in the end (delta: -3.0 MB). Peak memory consumption was 196.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 890]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L158] int pumpRunning = 0; [L159] int systemActive = 1; [L306] int waterLevel = 1; [L307] int methaneLevelCritical = 0; [L593] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L790] int cleanupTimeShifts = 4; [L863] int retValue_acc ; [L864] int tmp ; [L868] FCALL select_helpers() [L869] FCALL select_features() [L870] CALL, EXPR valid_product() [L415] int retValue_acc ; [L418] retValue_acc = 1 [L419] return (retValue_acc); [L870] RET, EXPR valid_product() [L870] tmp = valid_product() [L872] COND TRUE \read(tmp) [L874] FCALL setup() [L875] CALL runTest() [L857] CALL test() [L85] int splverifierCounter ; [L86] int tmp ; [L87] int tmp___0 ; [L88] int tmp___1 ; [L89] int tmp___2 ; [L92] splverifierCounter = 0 [L94] COND TRUE 1 [L96] COND TRUE splverifierCounter < 4 [L102] tmp = __VERIFIER_nondet_int() [L104] COND TRUE \read(tmp) [L106] CALL waterRise() [L324] COND TRUE waterLevel < 2 [L325] waterLevel = waterLevel + 1 [L106] RET waterRise() [L112] tmp___0 = __VERIFIER_nondet_int() [L114] COND FALSE !(\read(tmp___0)) [L122] tmp___2 = __VERIFIER_nondet_int() [L124] COND FALSE !(\read(tmp___2)) [L130] tmp___1 = __VERIFIER_nondet_int() [L132] COND FALSE !(\read(tmp___1)) [L141] CALL timeShift() [L165] COND FALSE !(\read(pumpRunning)) [L172] COND TRUE \read(systemActive) [L174] FCALL processEnvironment() [L180] CALL __utac_acc__Specification3_spec__1() [L45] int tmp ; [L46] int tmp___0 ; [L47] int tmp___1 ; [L51] CALL, EXPR isMethaneLevelCritical() [L345] int retValue_acc ; [L348] retValue_acc = methaneLevelCritical [L349] return (retValue_acc); [L51] RET, EXPR isMethaneLevelCritical() [L51] tmp = isMethaneLevelCritical() [L53] COND FALSE !(\read(tmp)) [L57] CALL, EXPR getWaterLevel() [L377] int retValue_acc ; [L380] retValue_acc = waterLevel [L381] return (retValue_acc); [L57] RET, EXPR getWaterLevel() [L57] tmp___0 = getWaterLevel() [L59] COND TRUE tmp___0 == 2 [L61] CALL, EXPR isPumpRunning() [L238] int retValue_acc ; [L241] retValue_acc = pumpRunning [L242] return (retValue_acc); [L61] RET, EXPR isPumpRunning() [L61] tmp___1 = isPumpRunning() [L63] COND FALSE !(\read(tmp___1)) [L67] CALL __automaton_fail() [L890] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 37 procedures, 214 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 10.7s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 6.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 358 SDtfs, 405 SDslu, 213 SDs, 0 SdLazy, 798 SolverSat, 231 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 93 GetRequests, 75 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 3.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=255occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 4 MinimizatonAttempts, 123 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 3.1s InterpolantComputationTime, 289 NumberOfCodeBlocks, 289 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 220 ConstructedInterpolants, 0 QuantifiedInterpolants, 59792 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...