/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDEST --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_spec2_product49.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 02:57:24,488 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 02:57:24,494 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 02:57:24,537 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 02:57:24,538 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 02:57:24,547 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 02:57:24,549 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 02:57:24,554 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 02:57:24,555 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 02:57:24,557 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 02:57:24,558 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 02:57:24,559 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 02:57:24,559 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 02:57:24,561 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 02:57:24,564 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 02:57:24,565 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 02:57:24,568 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 02:57:24,572 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 02:57:24,575 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 02:57:24,582 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 02:57:24,583 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 02:57:24,588 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 02:57:24,589 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 02:57:24,590 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 02:57:24,595 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 02:57:24,595 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 02:57:24,595 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 02:57:24,599 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 02:57:24,599 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 02:57:24,600 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 02:57:24,600 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 02:57:24,601 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 02:57:24,602 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 02:57:24,603 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 02:57:24,604 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 02:57:24,604 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 02:57:24,605 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 02:57:24,605 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 02:57:24,605 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 02:57:24,606 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 02:57:24,609 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 02:57:24,610 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 02:57:24,654 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 02:57:24,654 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 02:57:24,655 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 02:57:24,655 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 02:57:24,656 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 02:57:24,656 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 02:57:24,656 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 02:57:24,656 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 02:57:24,657 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 02:57:24,657 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 02:57:24,657 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 02:57:24,657 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 02:57:24,657 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 02:57:24,658 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 02:57:24,658 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 02:57:24,658 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 02:57:24,658 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 02:57:24,658 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 02:57:24,659 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 02:57:24,659 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 02:57:24,659 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 02:57:24,659 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 02:57:24,659 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 02:57:24,660 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 02:57:24,660 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 02:57:24,660 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 02:57:24,660 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 02:57:24,661 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 02:57:24,661 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 02:57:24,661 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDEST;log-additional-information=true; [2020-09-25 02:57:25,120 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 02:57:25,138 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 02:57:25,142 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 02:57:25,145 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 02:57:25,145 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 02:57:25,146 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product49.cil.c [2020-09-25 02:57:25,243 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c3214d5ee/ae77d3b1fc4649d4b3797d18e18e6aaa/FLAG30092c959 [2020-09-25 02:57:25,888 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 02:57:25,889 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec2_product49.cil.c [2020-09-25 02:57:25,903 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c3214d5ee/ae77d3b1fc4649d4b3797d18e18e6aaa/FLAG30092c959 [2020-09-25 02:57:26,161 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c3214d5ee/ae77d3b1fc4649d4b3797d18e18e6aaa [2020-09-25 02:57:26,175 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 02:57:26,180 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 02:57:26,181 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 02:57:26,181 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 02:57:26,185 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 02:57:26,186 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:57:26" (1/1) ... [2020-09-25 02:57:26,191 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c885eab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:57:26, skipping insertion in model container [2020-09-25 02:57:26,191 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:57:26" (1/1) ... [2020-09-25 02:57:26,199 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 02:57:26,253 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 02:57:26,752 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 02:57:26,779 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 02:57:26,864 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 02:57:26,899 INFO L208 MainTranslator]: Completed translation [2020-09-25 02:57:26,899 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:57:26 WrapperNode [2020-09-25 02:57:26,899 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 02:57:26,900 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 02:57:26,900 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 02:57:26,900 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 02:57:26,915 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:57:26" (1/1) ... [2020-09-25 02:57:26,915 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:57:26" (1/1) ... [2020-09-25 02:57:26,936 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:57:26" (1/1) ... [2020-09-25 02:57:26,937 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:57:26" (1/1) ... [2020-09-25 02:57:26,971 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:57:26" (1/1) ... [2020-09-25 02:57:26,984 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:57:26" (1/1) ... [2020-09-25 02:57:26,989 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:57:26" (1/1) ... [2020-09-25 02:57:26,997 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 02:57:26,998 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 02:57:26,998 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 02:57:26,998 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 02:57:26,999 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:57:26" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 02:57:27,076 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 02:57:27,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 02:57:27,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 02:57:27,077 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 02:57:27,077 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 02:57:27,077 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 02:57:27,077 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 02:57:27,078 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 02:57:27,078 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 02:57:27,078 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 02:57:27,078 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 02:57:27,078 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 02:57:27,079 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 02:57:27,079 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 02:57:27,079 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 02:57:27,079 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 02:57:27,079 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-09-25 02:57:27,080 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-09-25 02:57:27,080 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 02:57:27,081 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 02:57:27,081 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 02:57:27,081 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 02:57:27,081 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 02:57:27,081 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 02:57:27,081 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 02:57:27,082 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 02:57:27,082 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 02:57:27,082 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 02:57:27,082 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 02:57:27,082 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 02:57:27,082 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 02:57:27,083 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 02:57:27,083 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 02:57:27,083 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 02:57:27,083 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 02:57:27,083 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 02:57:27,084 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 02:57:27,084 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 02:57:27,084 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 02:57:27,084 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 02:57:27,084 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 02:57:27,084 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 02:57:27,085 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 02:57:27,085 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 02:57:27,085 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 02:57:27,085 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 02:57:27,085 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 02:57:27,085 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 02:57:27,086 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 02:57:27,086 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 02:57:27,086 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 02:57:27,086 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-09-25 02:57:27,086 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 02:57:27,087 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 02:57:27,087 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 02:57:27,087 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 02:57:27,087 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 02:57:27,087 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 02:57:27,087 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 02:57:27,088 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 02:57:27,088 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 02:57:27,088 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 02:57:27,088 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 02:57:27,088 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 02:57:27,088 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 02:57:27,088 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 02:57:27,089 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 02:57:27,089 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-09-25 02:57:27,089 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 02:57:27,089 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 02:57:27,089 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 02:57:27,089 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 02:57:27,090 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 02:57:27,090 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 02:57:27,090 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 02:57:27,090 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 02:57:27,090 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 02:57:27,090 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 02:57:27,091 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 02:57:27,091 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 02:57:27,091 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 02:57:27,091 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 02:57:27,091 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 02:57:27,092 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 02:57:27,092 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 02:57:27,092 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 02:57:27,092 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 02:57:27,092 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 02:57:27,092 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 02:57:27,092 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 02:57:27,093 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 02:57:27,093 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 02:57:27,093 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 02:57:27,093 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 02:57:27,093 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 02:57:27,093 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 02:57:28,286 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 02:57:28,287 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 02:57:28,294 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:57:28 BoogieIcfgContainer [2020-09-25 02:57:28,294 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 02:57:28,296 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 02:57:28,296 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 02:57:28,300 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 02:57:28,300 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 02:57:26" (1/3) ... [2020-09-25 02:57:28,301 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@439f367f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:57:28, skipping insertion in model container [2020-09-25 02:57:28,301 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:57:26" (2/3) ... [2020-09-25 02:57:28,302 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@439f367f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:57:28, skipping insertion in model container [2020-09-25 02:57:28,302 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:57:28" (3/3) ... [2020-09-25 02:57:28,305 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product49.cil.c [2020-09-25 02:57:28,317 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 02:57:28,329 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 02:57:28,349 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 02:57:28,381 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 02:57:28,381 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 02:57:28,381 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 02:57:28,382 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 02:57:28,382 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 02:57:28,382 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 02:57:28,382 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 02:57:28,382 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 02:57:28,409 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states. [2020-09-25 02:57:28,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-25 02:57:28,428 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:57:28,429 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 02:57:28,430 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:57:28,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:57:28,438 INFO L82 PathProgramCache]: Analyzing trace with hash 1663481443, now seen corresponding path program 1 times [2020-09-25 02:57:28,449 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:57:28,450 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1506365272] [2020-09-25 02:57:28,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:57:28,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:28,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:29,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:29,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:30,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:31,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:33,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:33,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-25 02:57:33,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 02:57:33,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5048 [2020-09-25 02:57:33,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:33,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 02:57:33,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-25 02:57:33,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-09-25 02:57:33,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 12 [2020-09-25 02:57:34,333 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 02:57:34,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:57:34,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:34,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:34,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:34,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 02:57:34,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:34,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 346 [2020-09-25 02:57:34,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:34,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:57:34,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:57:34,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 02:57:34,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:57:34,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 02:57:34,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:34,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:34,853 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:34,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:57:34,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:34,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 02:57:34,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:34,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:57:34,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:57:34,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:57:34,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:57:34,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 02:57:34,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:34,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:34,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:34,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:57:34,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:34,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 02:57:34,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:34,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:57:34,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:57:34,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:57:34,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:57:34,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 02:57:34,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:34,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:34,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:34,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:57:34,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:34,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 02:57:34,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:34,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:57:34,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:57:34,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:57:34,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:57:34,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 02:57:34,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:34,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:34,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:34,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:57:34,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:34,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 02:57:34,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:34,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:57:34,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:57:34,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:57:34,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:57:34,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 02:57:34,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:34,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:34,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:34,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 02:57:34,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:34,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 02:57:34,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:34,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:57:34,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:57:34,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 02:57:34,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:57:34,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-25 02:57:34,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:34,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:34,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:34,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:57:34,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:34,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 02:57:34,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:34,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 02:57:34,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:57:34,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:57:34,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:57:34,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 02:57:34,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:34,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:34,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:34,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:57:34,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:34,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:57:34,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:34,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:57:34,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 02:57:34,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:57:34,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:57:35,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 02:57:35,016 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1506365272] [2020-09-25 02:57:35,018 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 02:57:35,019 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 02:57:35,020 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620922696] [2020-09-25 02:57:35,030 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 02:57:35,030 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:57:35,048 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 02:57:35,051 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 02:57:35,054 INFO L87 Difference]: Start difference. First operand 327 states. Second operand 9 states. [2020-09-25 02:57:35,710 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 02:57:36,718 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 02:57:37,113 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 02:57:37,523 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 02:57:37,918 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 02:57:38,312 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 02:57:39,069 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 02:57:39,404 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 02:57:40,087 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 02:57:41,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:57:41,296 INFO L93 Difference]: Finished difference Result 673 states and 808 transitions. [2020-09-25 02:57:41,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-25 02:57:41,299 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 148 [2020-09-25 02:57:41,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:57:41,323 INFO L225 Difference]: With dead ends: 673 [2020-09-25 02:57:41,324 INFO L226 Difference]: Without dead ends: 465 [2020-09-25 02:57:41,330 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=99, Invalid=281, Unknown=0, NotChecked=0, Total=380 [2020-09-25 02:57:41,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 465 states. [2020-09-25 02:57:41,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 465 to 397. [2020-09-25 02:57:41,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 397 states. [2020-09-25 02:57:41,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 438 transitions. [2020-09-25 02:57:41,465 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 438 transitions. Word has length 148 [2020-09-25 02:57:41,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:57:41,467 INFO L479 AbstractCegarLoop]: Abstraction has 397 states and 438 transitions. [2020-09-25 02:57:41,467 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 02:57:41,467 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 438 transitions. [2020-09-25 02:57:41,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-09-25 02:57:41,475 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:57:41,475 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 02:57:41,475 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 02:57:41,475 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:57:41,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:57:41,476 INFO L82 PathProgramCache]: Analyzing trace with hash 754388365, now seen corresponding path program 1 times [2020-09-25 02:57:41,476 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:57:41,476 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [517547216] [2020-09-25 02:57:41,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:57:41,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:41,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:41,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:42,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:44,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:46,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:46,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-09-25 02:57:46,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 02:57:46,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5037 [2020-09-25 02:57:46,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:46,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 02:57:46,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-25 02:57:46,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-09-25 02:57:46,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:57:46,908 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 02:57:46,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:57:46,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:46,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:47,179 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:47,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 02:57:47,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:47,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 238 [2020-09-25 02:57:47,180 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:47,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:57:47,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:57:47,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 02:57:47,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:57:47,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 02:57:47,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:47,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:47,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:47,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:57:47,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:47,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:57:47,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:47,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:57:47,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:57:47,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:57:47,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:57:47,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 02:57:47,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:47,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:47,237 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:47,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:57:47,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:47,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:57:47,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:47,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:57:47,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:57:47,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:57:47,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:57:47,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 02:57:47,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:47,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:47,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:47,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:57:47,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:47,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 02:57:47,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:47,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:57:47,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:57:47,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:57:47,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:57:47,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 02:57:47,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:47,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:47,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:47,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:57:47,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:47,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:57:47,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:47,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:57:47,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:57:47,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:57:47,258 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:57:47,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 02:57:47,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:47,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:47,277 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:47,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 02:57:47,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:47,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:57:47,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:47,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:57:47,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:57:47,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 02:57:47,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:57:47,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-25 02:57:47,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:47,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:47,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:47,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 02:57:47,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:47,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 02:57:47,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:47,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:57:47,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:57:47,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 02:57:47,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:57:47,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-09-25 02:57:47,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:47,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:47,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:47,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:57:47,306 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:47,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:57:47,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:47,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:57:47,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:57:47,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:57:47,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:57:47,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-09-25 02:57:47,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:47,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:47,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:47,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:57:47,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:47,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 02:57:47,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:47,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 02:57:47,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:57:47,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:57:47,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:57:47,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 02:57:47,378 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [517547216] [2020-09-25 02:57:47,379 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 02:57:47,379 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 02:57:47,379 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1578546014] [2020-09-25 02:57:47,381 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 02:57:47,382 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:57:47,382 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 02:57:47,382 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 02:57:47,382 INFO L87 Difference]: Start difference. First operand 397 states and 438 transitions. Second operand 10 states. [2020-09-25 02:57:47,905 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 02:57:49,154 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 02:57:49,477 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 02:57:49,877 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 02:57:50,229 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 02:57:50,543 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 02:57:51,278 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 02:57:51,582 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 02:57:51,989 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 02:57:53,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:57:53,169 INFO L93 Difference]: Finished difference Result 942 states and 1137 transitions. [2020-09-25 02:57:53,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-09-25 02:57:53,169 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 163 [2020-09-25 02:57:53,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:57:53,179 INFO L225 Difference]: With dead ends: 942 [2020-09-25 02:57:53,179 INFO L226 Difference]: Without dead ends: 660 [2020-09-25 02:57:53,182 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=159, Invalid=441, Unknown=0, NotChecked=0, Total=600 [2020-09-25 02:57:53,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 660 states. [2020-09-25 02:57:53,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 660 to 550. [2020-09-25 02:57:53,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 550 states. [2020-09-25 02:57:53,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 550 states and 621 transitions. [2020-09-25 02:57:53,270 INFO L78 Accepts]: Start accepts. Automaton has 550 states and 621 transitions. Word has length 163 [2020-09-25 02:57:53,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:57:53,271 INFO L479 AbstractCegarLoop]: Abstraction has 550 states and 621 transitions. [2020-09-25 02:57:53,271 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 02:57:53,271 INFO L276 IsEmpty]: Start isEmpty. Operand 550 states and 621 transitions. [2020-09-25 02:57:53,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2020-09-25 02:57:53,276 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:57:53,277 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 02:57:53,277 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 02:57:53,278 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:57:53,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:57:53,278 INFO L82 PathProgramCache]: Analyzing trace with hash -989500862, now seen corresponding path program 1 times [2020-09-25 02:57:53,278 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:57:53,279 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [274995270] [2020-09-25 02:57:53,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:57:53,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:53,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:53,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:53,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:53,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:53,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:55,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:58,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:58,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 278 [2020-09-25 02:57:58,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 02:57:58,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5033 [2020-09-25 02:57:58,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:58,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:57:58,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-09-25 02:57:58,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-09-25 02:57:58,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:57:58,670 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 02:57:58,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:57:58,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:58,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:58,952 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:58,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 02:57:58,952 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:58,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 249 [2020-09-25 02:57:58,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:58,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:57:58,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:57:58,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 02:57:58,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:57:59,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 02:57:59,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:59,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:59,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:59,006 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:57:59,006 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:59,006 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:57:59,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:59,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:57:59,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:57:59,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:57:59,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:57:59,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 02:57:59,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:59,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:59,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:59,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:57:59,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:59,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:57:59,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:59,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:57:59,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:57:59,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:57:59,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:57:59,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 02:57:59,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:59,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:59,029 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:59,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:57:59,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:59,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 02:57:59,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:59,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:57:59,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:57:59,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:57:59,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:57:59,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 02:57:59,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:59,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:59,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:59,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:57:59,040 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:59,040 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 02:57:59,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:59,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:57:59,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:57:59,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:57:59,041 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:57:59,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 02:57:59,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:59,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:59,058 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:59,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 02:57:59,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:59,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 02:57:59,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:59,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:57:59,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:57:59,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 02:57:59,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:57:59,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-25 02:57:59,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:59,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:59,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:59,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 02:57:59,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:59,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 02:57:59,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:59,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:57:59,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:57:59,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 02:57:59,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:57:59,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-25 02:57:59,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:59,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:59,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:59,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-09-25 02:57:59,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:59,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 02:57:59,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:59,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:57:59,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-25 02:57:59,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 02:57:59,120 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:57:59,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:57:59,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:59,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:59,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:59,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 02:57:59,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:59,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 02:57:59,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:59,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:57:59,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:57:59,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-25 02:57:59,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:57:59,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:57:59,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:59,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:59,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:59,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:57:59,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:59,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:57:59,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:59,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:57:59,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:57:59,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:57:59,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:57:59,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2020-09-25 02:57:59,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:59,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:59,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:59,284 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:59,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 02:57:59,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 02:57:59,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-09-25 02:57:59,285 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:59,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 02:57:59,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-25 02:57:59,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 02:57:59,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:57:59,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:57:59,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:59,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:59,365 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:59,365 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 02:57:59,366 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:59,366 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-09-25 02:57:59,366 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:59,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 02:57:59,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-25 02:57:59,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 02:57:59,367 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:57:59,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:57:59,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:59,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:59,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:59,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 02:57:59,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:59,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-09-25 02:57:59,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:59,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 02:57:59,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:57:59,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 02:57:59,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:57:59,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 02:57:59,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:59,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:59,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:59,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 02:57:59,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:59,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 02:57:59,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:59,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:57:59,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:57:59,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:57:59,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:57:59,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 02:57:59,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:59,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:59,565 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:59,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 02:57:59,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:59,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:57:59,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:59,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:57:59,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-25 02:57:59,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:57:59,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:57:59,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2020-09-25 02:57:59,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:59,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:59,579 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:59,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:57:59,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:59,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:57:59,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:59,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:57:59,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 02:57:59,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:57:59,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:57:59,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2020-09-25 02:57:59,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:59,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:59,588 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:59,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:57:59,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:59,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:57:59,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:59,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:57:59,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 02:57:59,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:57:59,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:57:59,709 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 02:57:59,710 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [274995270] [2020-09-25 02:57:59,710 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 02:57:59,710 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-09-25 02:57:59,711 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502939160] [2020-09-25 02:57:59,712 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-25 02:57:59,712 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:57:59,712 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-25 02:57:59,713 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2020-09-25 02:57:59,713 INFO L87 Difference]: Start difference. First operand 550 states and 621 transitions. Second operand 14 states. [2020-09-25 02:58:00,533 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 02:58:01,809 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 02:58:02,140 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 02:58:02,458 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-25 02:58:02,807 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 02:58:03,140 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-25 02:58:03,466 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 02:58:05,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:58:05,249 INFO L93 Difference]: Finished difference Result 1204 states and 1496 transitions. [2020-09-25 02:58:05,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-09-25 02:58:05,254 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 227 [2020-09-25 02:58:05,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:58:05,261 INFO L225 Difference]: With dead ends: 1204 [2020-09-25 02:58:05,262 INFO L226 Difference]: Without dead ends: 769 [2020-09-25 02:58:05,265 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 160 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=250, Invalid=680, Unknown=0, NotChecked=0, Total=930 [2020-09-25 02:58:05,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 769 states. [2020-09-25 02:58:05,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 769 to 578. [2020-09-25 02:58:05,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 578 states. [2020-09-25 02:58:05,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 578 states to 578 states and 653 transitions. [2020-09-25 02:58:05,397 INFO L78 Accepts]: Start accepts. Automaton has 578 states and 653 transitions. Word has length 227 [2020-09-25 02:58:05,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:58:05,397 INFO L479 AbstractCegarLoop]: Abstraction has 578 states and 653 transitions. [2020-09-25 02:58:05,398 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-25 02:58:05,398 INFO L276 IsEmpty]: Start isEmpty. Operand 578 states and 653 transitions. [2020-09-25 02:58:05,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2020-09-25 02:58:05,402 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:58:05,402 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 02:58:05,402 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 02:58:05,403 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:58:05,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:58:05,403 INFO L82 PathProgramCache]: Analyzing trace with hash -1300689949, now seen corresponding path program 1 times [2020-09-25 02:58:05,404 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:58:05,404 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1635564225] [2020-09-25 02:58:05,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:58:05,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:05,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:05,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:08,739 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:08,740 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-09-25 02:58:08,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 02:58:08,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3276 [2020-09-25 02:58:08,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:08,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 02:58:08,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 124 [2020-09-25 02:58:08,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-09-25 02:58:08,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:58:09,086 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 02:58:09,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:58:09,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:09,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:09,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:09,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 02:58:09,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:09,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-09-25 02:58:09,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:09,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:58:09,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:58:09,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:58:09,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:58:09,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 02:58:09,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:09,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:09,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:09,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:58:09,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:09,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:58:09,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:09,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:58:09,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:58:09,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:58:09,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:58:09,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 02:58:09,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:09,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:09,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:09,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:58:09,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:09,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 02:58:09,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:09,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:58:09,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:58:09,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:58:09,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:58:09,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 02:58:09,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:09,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:09,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:09,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:58:09,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:09,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 02:58:09,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:09,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:58:09,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:58:09,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:58:09,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:58:09,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 02:58:09,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:09,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:09,242 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:09,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:58:09,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:09,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 02:58:09,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:09,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:58:09,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:58:09,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:58:09,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:58:09,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 02:58:09,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:09,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:09,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:09,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 02:58:09,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:09,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:58:09,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:09,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:58:09,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:58:09,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 02:58:09,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:58:09,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-25 02:58:09,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:09,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:09,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:09,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 02:58:09,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:09,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 02:58:09,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:09,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:58:09,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:58:09,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 02:58:09,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:58:09,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-25 02:58:09,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:09,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:09,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:09,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:09,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 02:58:09,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 02:58:09,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-09-25 02:58:09,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:09,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:58:09,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:58:09,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-09-25 02:58:09,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:58:09,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:58:09,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:09,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:09,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:09,492 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:09,492 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 02:58:09,492 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 02:58:09,492 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-09-25 02:58:09,493 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:09,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 02:58:09,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 02:58:09,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 02:58:09,494 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:58:09,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:58:09,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:09,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:09,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:09,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 02:58:09,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:09,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-09-25 02:58:09,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:09,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 02:58:09,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 02:58:09,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 02:58:09,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:58:09,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 02:58:09,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:09,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:09,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:09,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 02:58:09,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:09,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 02:58:09,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:09,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 02:58:09,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:58:09,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:58:09,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:58:09,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 02:58:09,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:09,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:09,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:09,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 02:58:09,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:09,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:58:09,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:09,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:58:09,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-25 02:58:09,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:58:09,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:58:09,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2020-09-25 02:58:09,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:09,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:09,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:09,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:58:09,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:09,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 02:58:09,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:09,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:58:09,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:58:09,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:58:09,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:58:09,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2020-09-25 02:58:09,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:09,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:09,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:09,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:58:09,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:09,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:58:09,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:09,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:58:09,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:58:09,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:58:09,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:58:09,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 02:58:09,673 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1635564225] [2020-09-25 02:58:09,674 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 02:58:09,674 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-25 02:58:09,674 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27488206] [2020-09-25 02:58:09,675 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 02:58:09,675 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:58:09,676 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 02:58:09,676 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-09-25 02:58:09,676 INFO L87 Difference]: Start difference. First operand 578 states and 653 transitions. Second operand 11 states. [2020-09-25 02:58:10,187 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 02:58:11,211 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 02:58:11,557 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 02:58:11,877 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 02:58:12,195 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 02:58:12,500 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 02:58:14,201 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 02:58:14,467 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 02:58:14,815 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 190