/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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 --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_product05.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 06:18:59,995 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 06:19:00,000 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 06:19:00,048 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 06:19:00,049 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 06:19:00,060 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 06:19:00,063 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 06:19:00,066 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 06:19:00,069 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 06:19:00,073 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 06:19:00,074 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 06:19:00,075 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 06:19:00,075 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 06:19:00,078 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 06:19:00,082 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 06:19:00,084 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 06:19:00,085 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 06:19:00,086 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 06:19:00,088 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 06:19:00,095 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 06:19:00,098 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 06:19:00,099 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 06:19:00,100 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 06:19:00,101 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 06:19:00,106 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 06:19:00,106 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 06:19:00,106 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 06:19:00,110 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 06:19:00,110 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 06:19:00,112 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 06:19:00,112 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 06:19:00,113 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 06:19:00,114 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 06:19:00,115 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 06:19:00,116 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 06:19:00,116 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 06:19:00,117 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 06:19:00,118 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 06:19:00,118 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 06:19:00,119 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 06:19:00,120 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 06:19:00,121 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 06:19:00,168 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 06:19:00,168 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 06:19:00,170 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 06:19:00,170 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 06:19:00,171 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 06:19:00,171 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 06:19:00,171 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 06:19:00,172 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 06:19:00,172 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 06:19:00,172 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 06:19:00,173 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 06:19:00,173 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 06:19:00,173 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 06:19:00,174 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 06:19:00,174 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 06:19:00,174 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 06:19:00,175 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 06:19:00,175 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 06:19:00,175 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 06:19:00,175 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 06:19:00,175 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 06:19:00,176 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 06:19:00,176 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 06:19:00,176 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 06:19:00,176 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 06:19:00,177 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 06:19:00,177 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 06:19:00,177 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 06:19:00,177 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 06:19:00,177 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=WIDESTAMONGSMALL;tolerance=0.6;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=WIDESTAMONGSMALL;tolerance=0.6;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=WIDESTAMONGSMALL;tolerance=0.6;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=WIDESTAMONGSMALL;tolerance=0.6;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=WIDESTAMONGSMALL;tolerance=0.6;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=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; [2020-09-25 06:19:00,630 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 06:19:00,657 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 06:19:00,664 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 06:19:00,666 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 06:19:00,667 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 06:19:00,668 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product05.cil.c [2020-09-25 06:19:00,762 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b87d25637/a67dec5db61f4824986bf1a36f8e8eb7/FLAG09c0cbe48 [2020-09-25 06:19:01,370 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 06:19:01,371 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec2_product05.cil.c [2020-09-25 06:19:01,386 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b87d25637/a67dec5db61f4824986bf1a36f8e8eb7/FLAG09c0cbe48 [2020-09-25 06:19:01,670 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b87d25637/a67dec5db61f4824986bf1a36f8e8eb7 [2020-09-25 06:19:01,683 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 06:19:01,688 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 06:19:01,689 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 06:19:01,690 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 06:19:01,694 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 06:19:01,695 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 06:19:01" (1/1) ... [2020-09-25 06:19:01,699 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@277364e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:19:01, skipping insertion in model container [2020-09-25 06:19:01,699 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 06:19:01" (1/1) ... [2020-09-25 06:19:01,708 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 06:19:01,764 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 06:19:02,107 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 06:19:02,219 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 06:19:02,347 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 06:19:02,387 INFO L208 MainTranslator]: Completed translation [2020-09-25 06:19:02,388 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:19:02 WrapperNode [2020-09-25 06:19:02,388 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 06:19:02,389 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 06:19:02,389 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 06:19:02,389 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 06:19:02,409 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:19:02" (1/1) ... [2020-09-25 06:19:02,410 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:19:02" (1/1) ... [2020-09-25 06:19:02,452 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:19:02" (1/1) ... [2020-09-25 06:19:02,452 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:19:02" (1/1) ... [2020-09-25 06:19:02,485 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:19:02" (1/1) ... [2020-09-25 06:19:02,497 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:19:02" (1/1) ... [2020-09-25 06:19:02,502 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:19:02" (1/1) ... [2020-09-25 06:19:02,510 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 06:19:02,511 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 06:19:02,511 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 06:19:02,511 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 06:19:02,512 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:19:02" (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 06:19:02,600 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 06:19:02,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 06:19:02,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 06:19:02,601 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 06:19:02,601 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 06:19:02,602 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 06:19:02,602 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 06:19:02,602 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 06:19:02,602 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-09-25 06:19:02,603 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-09-25 06:19:02,603 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 06:19:02,603 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 06:19:02,603 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 06:19:02,603 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 06:19:02,604 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 06:19:02,604 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 06:19:02,604 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 06:19:02,604 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 06:19:02,604 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 06:19:02,605 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 06:19:02,605 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 06:19:02,605 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 06:19:02,605 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 06:19:02,606 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 06:19:02,606 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 06:19:02,606 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 06:19:02,606 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 06:19:02,606 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 06:19:02,606 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 06:19:02,607 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 06:19:02,607 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 06:19:02,607 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 06:19:02,607 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 06:19:02,607 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 06:19:02,607 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 06:19:02,608 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 06:19:02,608 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 06:19:02,608 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 06:19:02,608 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 06:19:02,608 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 06:19:02,608 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 06:19:02,609 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 06:19:02,609 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 06:19:02,609 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 06:19:02,609 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 06:19:02,609 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 06:19:02,609 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-09-25 06:19:02,609 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 06:19:02,610 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 06:19:02,610 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 06:19:02,610 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 06:19:02,610 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 06:19:02,610 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 06:19:02,611 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 06:19:02,611 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 06:19:02,611 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 06:19:02,611 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-09-25 06:19:02,611 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 06:19:02,611 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 06:19:02,611 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 06:19:02,612 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 06:19:02,612 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 06:19:02,612 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 06:19:02,612 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 06:19:02,612 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 06:19:02,612 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 06:19:02,613 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 06:19:02,613 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 06:19:02,613 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 06:19:02,613 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 06:19:02,613 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 06:19:02,613 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 06:19:02,614 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 06:19:02,614 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 06:19:02,614 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 06:19:02,614 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 06:19:02,614 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 06:19:02,614 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 06:19:02,615 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 06:19:02,615 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 06:19:02,615 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 06:19:02,615 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 06:19:02,615 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 06:19:02,615 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 06:19:02,616 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 06:19:02,616 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 06:19:03,793 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 06:19:03,793 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 06:19:03,800 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 06:19:03 BoogieIcfgContainer [2020-09-25 06:19:03,801 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 06:19:03,802 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 06:19:03,802 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 06:19:03,806 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 06:19:03,806 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 06:19:01" (1/3) ... [2020-09-25 06:19:03,807 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c2f0550 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 06:19:03, skipping insertion in model container [2020-09-25 06:19:03,808 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:19:02" (2/3) ... [2020-09-25 06:19:03,808 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c2f0550 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 06:19:03, skipping insertion in model container [2020-09-25 06:19:03,808 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 06:19:03" (3/3) ... [2020-09-25 06:19:03,810 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product05.cil.c [2020-09-25 06:19:03,822 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 06:19:03,834 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 06:19:03,854 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 06:19:03,886 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 06:19:03,886 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 06:19:03,886 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 06:19:03,886 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 06:19:03,886 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 06:19:03,887 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 06:19:03,887 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 06:19:03,887 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 06:19:03,913 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states. [2020-09-25 06:19:03,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-25 06:19:03,930 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:19:03,931 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 06:19:03,932 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:19:03,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:19:03,939 INFO L82 PathProgramCache]: Analyzing trace with hash -1360572740, now seen corresponding path program 1 times [2020-09-25 06:19:03,950 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:19:03,950 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [405193624] [2020-09-25 06:19:03,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:19:04,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:04,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:04,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:05,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:06,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:07,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:09,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:09,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-25 06:19:09,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 06:19:09,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5030 [2020-09-25 06:19:09,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:09,384 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:09,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:19:09,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-09-25 06:19:09,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:19:09,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7 [2020-09-25 06:19:09,936 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 06:19:09,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:19:09,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:09,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:10,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:10,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 06:19:10,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:10,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 143 [2020-09-25 06:19:10,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:10,125 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:10,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:19:10,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:19:10,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:19:10,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:10,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 06:19:10,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:10,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:10,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:10,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:19:10,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:10,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:19:10,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:10,234 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:10,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:19:10,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:19:10,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:19:10,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:10,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 06:19:10,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:10,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:10,240 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:10,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:19:10,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:10,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:19:10,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:10,242 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:10,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:19:10,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:19:10,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:19:10,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:10,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 06:19:10,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:10,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:10,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:10,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:19:10,251 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:10,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 06:19:10,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:10,252 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:10,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:19:10,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:19:10,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:19:10,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:10,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 06:19:10,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:10,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:10,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:10,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:19:10,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:10,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:19:10,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:10,260 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:10,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:19:10,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:19:10,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:19:10,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:10,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 06:19:10,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:10,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:10,274 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:10,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 06:19:10,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:10,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:19:10,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:10,275 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:10,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:19:10,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:19:10,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:19:10,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:10,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-25 06:19:10,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:10,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:10,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:10,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:19:10,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:10,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:19:10,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:10,284 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:10,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:19:10,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:19:10,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:19:10,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:10,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 06:19:10,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:10,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:10,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:10,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:19:10,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:10,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:19:10,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:10,293 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:10,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:19:10,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:19:10,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:19:10,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:10,320 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 06:19:10,321 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [405193624] [2020-09-25 06:19:10,323 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:19:10,323 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 06:19:10,324 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530143765] [2020-09-25 06:19:10,331 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 06:19:10,332 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:19:10,350 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 06:19:10,351 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-25 06:19:10,354 INFO L87 Difference]: Start difference. First operand 273 states. Second operand 4 states. [2020-09-25 06:19:11,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:19:11,719 INFO L93 Difference]: Finished difference Result 404 states and 482 transitions. [2020-09-25 06:19:11,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 06:19:11,721 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 148 [2020-09-25 06:19:11,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:19:11,745 INFO L225 Difference]: With dead ends: 404 [2020-09-25 06:19:11,745 INFO L226 Difference]: Without dead ends: 267 [2020-09-25 06:19:11,752 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-25 06:19:11,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states. [2020-09-25 06:19:11,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 222. [2020-09-25 06:19:11,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 222 states. [2020-09-25 06:19:11,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 240 transitions. [2020-09-25 06:19:11,866 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 240 transitions. Word has length 148 [2020-09-25 06:19:11,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:19:11,867 INFO L479 AbstractCegarLoop]: Abstraction has 222 states and 240 transitions. [2020-09-25 06:19:11,868 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 06:19:11,868 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 240 transitions. [2020-09-25 06:19:11,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-09-25 06:19:11,873 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:19:11,874 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] [2020-09-25 06:19:11,874 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 06:19:11,874 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:19:11,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:19:11,875 INFO L82 PathProgramCache]: Analyzing trace with hash -238871816, now seen corresponding path program 1 times [2020-09-25 06:19:11,876 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:19:11,876 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [511017948] [2020-09-25 06:19:11,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:19:12,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:12,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:12,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:12,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:13,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:13,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:15,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:17,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:17,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 182 [2020-09-25 06:19:17,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 06:19:17,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-09-25 06:19:17,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:17,015 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:17,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:19:17,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-25 06:19:17,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-25 06:19:17,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:17,332 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 06:19:17,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:19:17,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:17,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:17,661 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:17,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 06:19:17,662 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:17,662 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 273 [2020-09-25 06:19:17,662 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:17,663 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:17,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:19:17,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:19:17,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 06:19:17,664 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:17,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 06:19:17,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:17,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:17,717 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:17,717 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:19:17,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:17,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:19:17,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:17,718 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:17,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:19:17,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:19:17,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 06:19:17,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:17,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 06:19:17,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:17,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:17,726 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:17,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:19:17,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:17,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:19:17,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:17,727 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:17,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:19:17,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:19:17,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 06:19:17,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:17,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 06:19:17,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:17,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:17,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:17,740 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:19:17,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:17,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 06:19:17,741 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:17,741 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:17,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:19:17,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:19:17,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 06:19:17,742 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:17,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 06:19:17,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:17,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:17,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:17,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:19:17,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:17,751 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:19:17,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:17,752 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:17,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:19:17,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:19:17,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 06:19:17,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:17,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 06:19:17,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:17,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:17,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:17,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 06:19:17,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:17,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:19:17,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:17,770 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:17,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:19:17,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:19:17,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 06:19:17,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:17,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-09-25 06:19:17,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:17,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:17,777 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:17,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:19:17,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:17,778 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:19:17,778 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:17,779 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:17,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:19:17,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:19:17,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:19:17,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:17,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 06:19:17,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:17,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:17,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:17,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:19:17,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:17,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:19:17,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:17,786 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:17,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:19:17,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:19:17,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:19:17,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:17,845 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 06:19:17,846 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [511017948] [2020-09-25 06:19:17,846 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:19:17,847 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 06:19:17,847 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260672445] [2020-09-25 06:19:17,850 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 06:19:17,850 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:19:17,851 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 06:19:17,851 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 06:19:17,851 INFO L87 Difference]: Start difference. First operand 222 states and 240 transitions. Second operand 5 states. [2020-09-25 06:19:18,374 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 06:19:19,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:19:19,335 INFO L93 Difference]: Finished difference Result 374 states and 433 transitions. [2020-09-25 06:19:19,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 06:19:19,336 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 149 [2020-09-25 06:19:19,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:19:19,343 INFO L225 Difference]: With dead ends: 374 [2020-09-25 06:19:19,343 INFO L226 Difference]: Without dead ends: 267 [2020-09-25 06:19:19,349 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 06:19:19,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states. [2020-09-25 06:19:19,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 222. [2020-09-25 06:19:19,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 222 states. [2020-09-25 06:19:19,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 239 transitions. [2020-09-25 06:19:19,429 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 239 transitions. Word has length 149 [2020-09-25 06:19:19,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:19:19,431 INFO L479 AbstractCegarLoop]: Abstraction has 222 states and 239 transitions. [2020-09-25 06:19:19,431 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 06:19:19,432 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 239 transitions. [2020-09-25 06:19:19,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-09-25 06:19:19,439 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:19:19,440 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] [2020-09-25 06:19:19,440 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 06:19:19,440 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:19:19,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:19:19,441 INFO L82 PathProgramCache]: Analyzing trace with hash -731898127, now seen corresponding path program 1 times [2020-09-25 06:19:19,441 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:19:19,442 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2033367810] [2020-09-25 06:19:19,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:19:19,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:19,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:19,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:20,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:20,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:21,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:24,530 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:24,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 194 [2020-09-25 06:19:24,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 06:19:24,531 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5026 [2020-09-25 06:19:24,531 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:24,532 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:24,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:19:24,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-09-25 06:19:24,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 06:19:24,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:24,919 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 06:19:24,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:19:24,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:24,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:25,027 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:25,028 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 06:19:25,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:25,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-09-25 06:19:25,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:25,029 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:25,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:19:25,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:19:25,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:19:25,030 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:25,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 06:19:25,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:25,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:25,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:25,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:19:25,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:25,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:19:25,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:25,071 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:25,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:19:25,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:19:25,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:19:25,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:25,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 06:19:25,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:25,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:25,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:25,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:19:25,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:25,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:19:25,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:25,078 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:25,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:19:25,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:19:25,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:19:25,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:25,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 06:19:25,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:25,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:25,088 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:25,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:19:25,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:25,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 06:19:25,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:25,089 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:25,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:19:25,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:19:25,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:19:25,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:25,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 06:19:25,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:25,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:25,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:25,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:19:25,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:25,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:19:25,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:25,095 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:25,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:19:25,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:19:25,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:19:25,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:25,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 06:19:25,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:25,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:25,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:25,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 06:19:25,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:25,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:19:25,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:25,109 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:25,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:19:25,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:19:25,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:19:25,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:25,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-09-25 06:19:25,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:25,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:25,123 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:25,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 06:19:25,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:25,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:19:25,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:25,124 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:25,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:19:25,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-25 06:19:25,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:19:25,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:25,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:19:25,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:25,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:25,130 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:25,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:19:25,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:25,130 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:19:25,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:25,131 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:25,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:19:25,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:19:25,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:19:25,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:25,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-25 06:19:25,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:25,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:25,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:25,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:19:25,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:25,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:19:25,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:25,138 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:25,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:19:25,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:19:25,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:19:25,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:25,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 06:19:25,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:25,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:25,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:25,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:19:25,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:25,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:19:25,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:25,144 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:25,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:19:25,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:19:25,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:19:25,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:25,172 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 06:19:25,173 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2033367810] [2020-09-25 06:19:25,173 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:19:25,173 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 06:19:25,173 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710912551] [2020-09-25 06:19:25,175 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 06:19:25,175 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:19:25,175 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 06:19:25,176 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 06:19:25,177 INFO L87 Difference]: Start difference. First operand 222 states and 239 transitions. Second operand 6 states. [2020-09-25 06:19:25,868 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 06:19:26,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:19:26,795 INFO L93 Difference]: Finished difference Result 357 states and 411 transitions. [2020-09-25 06:19:26,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 06:19:26,798 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 157 [2020-09-25 06:19:26,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:19:26,800 INFO L225 Difference]: With dead ends: 357 [2020-09-25 06:19:26,805 INFO L226 Difference]: Without dead ends: 280 [2020-09-25 06:19:26,806 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2020-09-25 06:19:26,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2020-09-25 06:19:26,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 212. [2020-09-25 06:19:26,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 212 states. [2020-09-25 06:19:26,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 226 transitions. [2020-09-25 06:19:26,855 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 226 transitions. Word has length 157 [2020-09-25 06:19:26,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:19:26,857 INFO L479 AbstractCegarLoop]: Abstraction has 212 states and 226 transitions. [2020-09-25 06:19:26,857 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 06:19:26,857 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 226 transitions. [2020-09-25 06:19:26,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2020-09-25 06:19:26,859 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:19:26,859 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] [2020-09-25 06:19:26,859 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 06:19:26,860 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:19:26,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:19:26,860 INFO L82 PathProgramCache]: Analyzing trace with hash 322007088, now seen corresponding path program 1 times [2020-09-25 06:19:26,860 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:19:26,860 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [142093049] [2020-09-25 06:19:26,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:19:26,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:26,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:27,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:27,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:28,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:30,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:31,950 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:31,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 201 [2020-09-25 06:19:31,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 06:19:31,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5039 [2020-09-25 06:19:31,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:31,952 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:31,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 06:19:31,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 124 [2020-09-25 06:19:31,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-25 06:19:31,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:32,342 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 06:19:32,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:19:32,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:32,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:32,462 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:32,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 06:19:32,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:32,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-09-25 06:19:32,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:32,463 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:32,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:19:32,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:19:32,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:19:32,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:32,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 06:19:32,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:32,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:32,508 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:32,508 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:19:32,508 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:32,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:19:32,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:32,509 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:32,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:19:32,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:19:32,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:19:32,511 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:32,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 06:19:32,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:32,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:32,515 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:32,516 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:19:32,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:32,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:19:32,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:32,517 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:32,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:19:32,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:19:32,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:19:32,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:19:32,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 06:19:32,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:32,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:32,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:32,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:19:32,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:32,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 06:19:32,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:32,526 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:32,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:19:32,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:19:32,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:19:32,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:32,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 06:19:32,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:32,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:32,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:32,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:19:32,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:32,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:19:32,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:32,534 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:32,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:19:32,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:19:32,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:19:32,535 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:32,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 06:19:32,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:32,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:32,554 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:32,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 06:19:32,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:32,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:19:32,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:32,556 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:32,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:19:32,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:19:32,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 06:19:32,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:32,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-25 06:19:32,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:32,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:32,579 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:32,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 06:19:32,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:32,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 06:19:32,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:32,581 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:32,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:19:32,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:19:32,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 06:19:32,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:32,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:19:32,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:32,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:32,588 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:32,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:19:32,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:32,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:19:32,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:32,590 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:32,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:19:32,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:19:32,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:19:32,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:32,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-09-25 06:19:32,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:32,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:32,602 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:32,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:19:32,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:32,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:19:32,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:32,604 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:32,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:19:32,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:19:32,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 06:19:32,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:32,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-09-25 06:19:32,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:32,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:32,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:32,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:19:32,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:32,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:19:32,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:32,615 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:32,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:19:32,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:19:32,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 06:19:32,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:32,714 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 06:19:32,715 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [142093049] [2020-09-25 06:19:32,716 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:19:32,716 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 06:19:32,716 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027011053] [2020-09-25 06:19:32,717 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 06:19:32,718 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:19:32,718 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 06:19:32,718 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 06:19:32,719 INFO L87 Difference]: Start difference. First operand 212 states and 226 transitions. Second operand 6 states. [2020-09-25 06:19:33,279 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 06:19:35,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:19:35,068 INFO L93 Difference]: Finished difference Result 445 states and 547 transitions. [2020-09-25 06:19:35,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 06:19:35,069 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 166 [2020-09-25 06:19:35,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:19:35,074 INFO L225 Difference]: With dead ends: 445 [2020-09-25 06:19:35,074 INFO L226 Difference]: Without dead ends: 442 [2020-09-25 06:19:35,075 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-25 06:19:35,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 442 states. [2020-09-25 06:19:35,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 442 to 309. [2020-09-25 06:19:35,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 309 states. [2020-09-25 06:19:35,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 339 transitions. [2020-09-25 06:19:35,142 INFO L78 Accepts]: Start accepts. Automaton has 309 states and 339 transitions. Word has length 166 [2020-09-25 06:19:35,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:19:35,143 INFO L479 AbstractCegarLoop]: Abstraction has 309 states and 339 transitions. [2020-09-25 06:19:35,143 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 06:19:35,144 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 339 transitions. [2020-09-25 06:19:35,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2020-09-25 06:19:35,147 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:19:35,148 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-09-25 06:19:35,148 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 06:19:35,148 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:19:35,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:19:35,149 INFO L82 PathProgramCache]: Analyzing trace with hash 460708934, now seen corresponding path program 1 times [2020-09-25 06:19:35,149 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:19:35,149 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1528254847] [2020-09-25 06:19:35,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:19:35,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:35,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:35,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:35,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:37,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:37,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:38,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:40,237 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:40,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 267 [2020-09-25 06:19:40,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 06:19:40,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5025 [2020-09-25 06:19:40,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:40,238 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:40,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 06:19:40,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 153 [2020-09-25 06:19:40,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-09-25 06:19:40,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:19:40,537 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 06:19:40,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:19:40,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:40,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:40,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:40,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 06:19:40,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:40,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-09-25 06:19:40,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:40,638 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:40,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:19:40,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:19:40,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:19:40,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:40,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 06:19:40,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:40,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:40,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:40,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:19:40,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:40,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:19:40,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:40,670 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:40,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:19:40,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:19:40,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:19:40,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:19:40,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 06:19:40,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:40,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:40,675 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:40,675 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:19:40,675 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:40,675 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:19:40,676 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:40,676 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:40,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:19:40,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:19:40,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:19:40,676 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:19:40,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 06:19:40,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:40,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:40,683 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:40,683 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:19:40,683 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:40,684 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:19:40,684 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:40,684 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:40,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:19:40,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:19:40,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:19:40,685 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:19:40,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 06:19:40,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:40,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:40,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:40,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:19:40,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:40,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:19:40,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:40,691 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:40,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:19:40,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:19:40,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:19:40,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:40,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 06:19:40,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:40,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:40,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:40,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 06:19:40,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:40,704 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:19:40,704 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:40,705 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:40,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:19:40,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:19:40,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:19:40,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:40,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 06:19:40,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:40,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:40,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:40,908 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:40,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-25 06:19:40,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 06:19:40,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 182 [2020-09-25 06:19:40,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:40,909 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:40,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 06:19:40,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 06:19:40,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-09-25 06:19:40,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:40,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:19:40,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:40,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:40,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:40,940 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:40,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 06:19:40,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 06:19:40,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 06:19:40,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:40,942 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:40,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:19:40,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:19:40,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 06:19:40,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:40,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:19:40,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:40,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:40,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:40,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:19:40,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:40,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:19:40,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:40,950 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:40,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:19:40,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:19:40,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 06:19:40,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:40,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 06:19:40,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:40,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:40,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:40,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-25 06:19:40,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:40,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-09-25 06:19:40,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:40,999 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:40,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 06:19:40,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-25 06:19:40,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-25 06:19:41,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:41,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:19:41,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:41,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:41,050 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:41,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:19:41,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:41,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:19:41,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:41,052 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:41,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:19:41,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:19:41,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:19:41,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:41,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-25 06:19:41,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:41,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:41,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:41,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:19:41,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:41,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 06:19:41,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:41,073 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:41,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 06:19:41,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:19:41,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 06:19:41,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:41,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2020-09-25 06:19:41,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:41,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:41,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:41,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 06:19:41,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:41,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:19:41,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:41,115 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:41,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:19:41,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-25 06:19:41,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:19:41,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:19:41,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:19:41,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:41,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:41,120 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:41,120 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:19:41,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:41,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:19:41,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:41,121 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:41,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:19:41,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:19:41,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:19:41,122 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:41,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2020-09-25 06:19:41,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:41,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:41,127 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:41,127 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:19:41,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:41,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:19:41,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:41,128 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:41,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:19:41,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:19:41,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:19:41,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:41,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2020-09-25 06:19:41,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:41,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:41,133 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:41,134 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:19:41,134 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:41,134 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:19:41,134 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:41,135 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:41,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:19:41,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:19:41,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:19:41,135 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:41,191 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 32 proven. 6 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-09-25 06:19:41,192 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1528254847] [2020-09-25 06:19:41,192 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 06:19:41,192 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-09-25 06:19:41,193 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781083136] [2020-09-25 06:19:41,194 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-25 06:19:41,194 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:19:41,194 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-25 06:19:41,195 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2020-09-25 06:19:41,196 INFO L87 Difference]: Start difference. First operand 309 states and 339 transitions. Second operand 12 states. [2020-09-25 06:19:41,750 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 06:19:43,043 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 06:19:43,398 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 06:19:43,739 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 06:19:44,061 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 06:19:44,376 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 06:19:44,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:19:44,574 INFO L93 Difference]: Finished difference Result 426 states and 492 transitions. [2020-09-25 06:19:44,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-25 06:19:44,575 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 220 [2020-09-25 06:19:44,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:19:44,576 INFO L225 Difference]: With dead ends: 426 [2020-09-25 06:19:44,576 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 06:19:44,578 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=127, Invalid=335, Unknown=0, NotChecked=0, Total=462 [2020-09-25 06:19:44,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 06:19:44,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 06:19:44,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 06:19:44,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 06:19:44,580 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 220 [2020-09-25 06:19:44,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:19:44,580 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 06:19:44,581 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-25 06:19:44,582 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 06:19:44,582 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 06:19:44,582 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 06:19:44,586 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 06:19:44,816 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 06:19:44,993 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 06:19:45,445 WARN L193 SmtUtils]: Spent 451.00 ms on a formula simplification. DAG size of input: 211 DAG size of output: 200 [2020-09-25 06:19:45,618 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 06:19:45,786 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 06:19:45,964 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 06:19:46,123 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 06:19:46,284 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 06:19:46,430 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 06:19:46,698 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 208 DAG size of output: 15 [2020-09-25 06:19:46,861 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 06:19:47,021 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 06:19:47,179 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 06:19:47,343 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 06:19:47,755 WARN L193 SmtUtils]: Spent 411.00 ms on a formula simplification. DAG size of input: 212 DAG size of output: 201 [2020-09-25 06:19:47,915 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 06:19:48,073 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 06:19:48,232 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 06:19:48,391 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 06:19:48,549 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 06:19:48,713 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 192