/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 interpolation-heuristic=FIRST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec2_product42.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 15:44:58,171 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 15:44:58,174 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 15:44:58,200 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 15:44:58,200 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 15:44:58,201 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 15:44:58,203 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 15:44:58,205 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 15:44:58,206 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 15:44:58,207 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 15:44:58,208 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 15:44:58,209 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 15:44:58,210 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 15:44:58,211 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 15:44:58,212 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 15:44:58,213 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 15:44:58,214 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 15:44:58,215 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 15:44:58,217 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 15:44:58,219 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 15:44:58,220 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 15:44:58,221 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 15:44:58,223 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 15:44:58,223 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 15:44:58,226 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 15:44:58,226 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 15:44:58,227 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 15:44:58,227 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 15:44:58,228 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 15:44:58,229 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 15:44:58,229 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 15:44:58,230 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 15:44:58,231 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 15:44:58,232 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 15:44:58,233 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 15:44:58,233 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 15:44:58,234 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 15:44:58,234 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 15:44:58,234 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 15:44:58,235 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 15:44:58,236 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 15:44:58,237 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 [2020-09-24 15:44:58,286 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 15:44:58,289 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 15:44:58,290 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 15:44:58,290 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 15:44:58,290 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 15:44:58,291 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 15:44:58,291 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 15:44:58,291 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 15:44:58,292 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 15:44:58,292 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 15:44:58,292 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 15:44:58,292 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 15:44:58,292 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 15:44:58,293 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 15:44:58,294 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 15:44:58,294 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 15:44:58,294 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 15:44:58,294 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 15:44:58,294 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 15:44:58,295 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 15:44:58,296 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 15:44:58,296 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 15:44:58,296 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 15:44:58,296 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 15:44:58,297 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 15:44:58,297 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 15:44:58,297 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 15:44:58,297 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 15:44:58,297 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 15:44:58,298 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;interpolation-heuristic=FIRST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; [2020-09-24 15:44:58,754 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 15:44:58,777 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 15:44:58,781 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 15:44:58,782 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 15:44:58,783 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 15:44:58,785 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product42.cil.c [2020-09-24 15:44:58,863 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/abfe0c51b/a030fbeef28140bd980b6f69d329cb97/FLAGaba3b5e58 [2020-09-24 15:44:59,515 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 15:44:59,516 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec2_product42.cil.c [2020-09-24 15:44:59,530 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/abfe0c51b/a030fbeef28140bd980b6f69d329cb97/FLAGaba3b5e58 [2020-09-24 15:44:59,747 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/abfe0c51b/a030fbeef28140bd980b6f69d329cb97 [2020-09-24 15:44:59,759 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 15:44:59,764 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 15:44:59,765 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 15:44:59,765 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 15:44:59,769 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 15:44:59,770 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 03:44:59" (1/1) ... [2020-09-24 15:44:59,775 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11967da3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:44:59, skipping insertion in model container [2020-09-24 15:44:59,775 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 03:44:59" (1/1) ... [2020-09-24 15:44:59,784 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 15:44:59,839 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 15:45:00,186 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 15:45:00,201 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 15:45:00,401 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 15:45:00,448 INFO L208 MainTranslator]: Completed translation [2020-09-24 15:45:00,449 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:45:00 WrapperNode [2020-09-24 15:45:00,450 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 15:45:00,451 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 15:45:00,452 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 15:45:00,452 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 15:45:00,467 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:45:00" (1/1) ... [2020-09-24 15:45:00,467 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:45:00" (1/1) ... [2020-09-24 15:45:00,487 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:45:00" (1/1) ... [2020-09-24 15:45:00,488 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:45:00" (1/1) ... [2020-09-24 15:45:00,547 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:45:00" (1/1) ... [2020-09-24 15:45:00,567 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:45:00" (1/1) ... [2020-09-24 15:45:00,572 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:45:00" (1/1) ... [2020-09-24 15:45:00,586 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 15:45:00,586 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 15:45:00,586 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 15:45:00,586 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 15:45:00,593 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:45:00" (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 [2020-09-24 15:45:00,688 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 15:45:00,689 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 15:45:00,689 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 15:45:00,689 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 15:45:00,690 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 15:45:00,690 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 15:45:00,690 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 15:45:00,690 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 15:45:00,691 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 15:45:00,692 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 15:45:00,692 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 15:45:00,692 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 15:45:00,692 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 15:45:00,692 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-09-24 15:45:00,692 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 15:45:00,693 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 15:45:00,694 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 15:45:00,694 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 15:45:00,694 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 15:45:00,694 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 15:45:00,694 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-24 15:45:00,695 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-09-24 15:45:00,695 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-09-24 15:45:00,695 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 15:45:00,696 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 15:45:00,696 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 15:45:00,697 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 15:45:00,697 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 15:45:00,697 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 15:45:00,697 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 15:45:00,697 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 15:45:00,697 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 15:45:00,697 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 15:45:00,698 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 15:45:00,698 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 15:45:00,698 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 15:45:00,698 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 15:45:00,698 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 15:45:00,698 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 15:45:00,699 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 15:45:00,699 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 15:45:00,699 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 15:45:00,699 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 15:45:00,699 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 15:45:00,699 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 15:45:00,699 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 15:45:00,700 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 15:45:00,700 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 15:45:00,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 15:45:00,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 15:45:00,700 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 15:45:00,701 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 15:45:00,701 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 15:45:00,701 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 15:45:00,701 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 15:45:00,702 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 15:45:00,702 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 15:45:00,702 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 15:45:00,702 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 15:45:00,702 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 15:45:00,702 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 15:45:00,702 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 15:45:00,703 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-24 15:45:00,703 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 15:45:00,703 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 15:45:00,703 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 15:45:00,703 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 15:45:00,703 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 15:45:00,703 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 15:45:00,704 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 15:45:00,704 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 15:45:00,705 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 15:45:00,705 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 15:45:00,706 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 15:45:00,706 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-09-24 15:45:00,707 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 15:45:00,707 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 15:45:00,707 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 15:45:00,707 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-09-24 15:45:00,707 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 15:45:00,707 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 15:45:00,707 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-09-24 15:45:00,708 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 15:45:00,708 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 15:45:00,708 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 15:45:00,708 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 15:45:00,708 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 15:45:00,709 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 15:45:00,709 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 15:45:00,709 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 15:45:00,710 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 15:45:00,710 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 15:45:00,710 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 15:45:00,710 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 15:45:01,913 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 15:45:01,913 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 15:45:01,920 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 03:45:01 BoogieIcfgContainer [2020-09-24 15:45:01,920 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 15:45:01,922 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 15:45:01,922 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 15:45:01,925 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 15:45:01,926 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 03:44:59" (1/3) ... [2020-09-24 15:45:01,926 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2870aa95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 03:45:01, skipping insertion in model container [2020-09-24 15:45:01,927 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:45:00" (2/3) ... [2020-09-24 15:45:01,927 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2870aa95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 03:45:01, skipping insertion in model container [2020-09-24 15:45:01,927 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 03:45:01" (3/3) ... [2020-09-24 15:45:01,930 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product42.cil.c [2020-09-24 15:45:01,941 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 15:45:01,952 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 15:45:01,973 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 15:45:02,005 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 15:45:02,005 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 15:45:02,005 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 15:45:02,005 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 15:45:02,006 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 15:45:02,006 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 15:45:02,006 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 15:45:02,006 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 15:45:02,035 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states. [2020-09-24 15:45:02,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-24 15:45:02,053 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:45:02,054 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] [2020-09-24 15:45:02,055 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:45:02,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:45:02,063 INFO L82 PathProgramCache]: Analyzing trace with hash 769335885, now seen corresponding path program 1 times [2020-09-24 15:45:02,074 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:45:02,074 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1088692208] [2020-09-24 15:45:02,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:45:02,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:02,394 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:02,394 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:02,394 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:02,395 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:02,395 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-24 15:45:02,395 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:02,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 15:45:02,396 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:02,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:45:02,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-09-24 15:45:02,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:45:02,397 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:45:02,851 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 15:45:02,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:45:02,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:02,875 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:02,919 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:02,919 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:02,920 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:02,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 15:45:02,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:02,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-09-24 15:45:02,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:02,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:45:02,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:45:02,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:45:02,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:45:03,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 15:45:03,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:03,015 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:03,016 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:03,016 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:03,016 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:03,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:45:03,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:03,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:45:03,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:03,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:45:03,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:45:03,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:45:03,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:45:03,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 15:45:03,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:03,027 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:03,027 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:03,027 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:03,028 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:03,028 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:45:03,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:03,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 15:45:03,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:03,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:45:03,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:45:03,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:45:03,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:45:03,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 15:45:03,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:03,035 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:03,036 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:03,036 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:03,036 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:03,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:45:03,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:03,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:45:03,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:03,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:45:03,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:45:03,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:45:03,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:45:03,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 15:45:03,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:03,046 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:03,046 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:03,046 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:03,046 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:03,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:45:03,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:03,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:45:03,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:03,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:45:03,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:45:03,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:45:03,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:45:03,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 15:45:03,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:03,062 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:03,062 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:03,062 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:03,062 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:03,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 15:45:03,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:03,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:45:03,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:03,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:45:03,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:45:03,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:45:03,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:45:03,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-24 15:45:03,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:03,071 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:03,072 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:03,072 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:03,072 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:03,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:45:03,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:03,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:45:03,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:03,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:45:03,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:45:03,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:45:03,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:45:03,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-24 15:45:03,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:03,092 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:03,092 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:03,092 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:03,096 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:03,096 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:45:03,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:03,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 15:45:03,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:03,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:45:03,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:45:03,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:45:03,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:45:03,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 15:45:03,131 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1088692208] [2020-09-24 15:45:03,134 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:45:03,138 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 15:45:03,140 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329233921] [2020-09-24 15:45:03,146 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 15:45:03,147 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:45:03,162 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 15:45:03,163 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-24 15:45:03,165 INFO L87 Difference]: Start difference. First operand 308 states. Second operand 4 states. [2020-09-24 15:45:04,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:45:04,408 INFO L93 Difference]: Finished difference Result 478 states and 564 transitions. [2020-09-24 15:45:04,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-24 15:45:04,410 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 148 [2020-09-24 15:45:04,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:45:04,431 INFO L225 Difference]: With dead ends: 478 [2020-09-24 15:45:04,431 INFO L226 Difference]: Without dead ends: 306 [2020-09-24 15:45:04,437 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-24 15:45:04,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2020-09-24 15:45:04,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 257. [2020-09-24 15:45:04,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 257 states. [2020-09-24 15:45:04,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 278 transitions. [2020-09-24 15:45:04,546 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 278 transitions. Word has length 148 [2020-09-24 15:45:04,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:45:04,547 INFO L479 AbstractCegarLoop]: Abstraction has 257 states and 278 transitions. [2020-09-24 15:45:04,548 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 15:45:04,548 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 278 transitions. [2020-09-24 15:45:04,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-09-24 15:45:04,553 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:45:04,553 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] [2020-09-24 15:45:04,554 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 15:45:04,554 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:45:04,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:45:04,555 INFO L82 PathProgramCache]: Analyzing trace with hash 1712592355, now seen corresponding path program 1 times [2020-09-24 15:45:04,555 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:45:04,555 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [542630718] [2020-09-24 15:45:04,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:45:04,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:04,662 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:04,662 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:04,662 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:04,662 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:04,663 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 182 [2020-09-24 15:45:04,663 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:04,663 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 15:45:04,663 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:04,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:45:04,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-09-24 15:45:04,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 15:45:04,664 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:45:04,995 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 15:45:04,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:45:05,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:05,007 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:05,007 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:05,008 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:05,008 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:05,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 15:45:05,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:05,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:45:05,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:05,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:45:05,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:45:05,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:45:05,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:45:05,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 15:45:05,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:05,061 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:05,061 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:05,061 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:05,061 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:05,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:45:05,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:05,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:45:05,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:05,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:45:05,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:45:05,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:45:05,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:45:05,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 15:45:05,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:05,067 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:05,067 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:05,067 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:05,068 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:05,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:45:05,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:05,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:45:05,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:05,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:45:05,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:45:05,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:45:05,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:45:05,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 15:45:05,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:05,072 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:05,072 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:05,072 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:05,073 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:05,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:45:05,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:05,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:45:05,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:05,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:45:05,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:45:05,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:45:05,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:45:05,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 15:45:05,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:05,078 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:05,078 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:05,078 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:05,078 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:05,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:45:05,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:05,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:45:05,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:05,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:45:05,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:45:05,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:45:05,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:45:05,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 15:45:05,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:05,091 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:05,091 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:05,091 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:05,091 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:05,091 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 15:45:05,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:05,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:45:05,092 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:05,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:45:05,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:45:05,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:45:05,093 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:45:05,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-09-24 15:45:05,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:05,097 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:05,097 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:05,097 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:05,098 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:05,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:45:05,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:05,098 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:45:05,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:05,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:45:05,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:45:05,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:45:05,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:45:05,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-24 15:45:05,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:05,104 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:05,104 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:05,104 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:05,105 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:05,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:45:05,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:05,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:45:05,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:05,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:45:05,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:45:05,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:45:05,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:45:05,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 15:45:05,187 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [542630718] [2020-09-24 15:45:05,187 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:45:05,187 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 15:45:05,187 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137182749] [2020-09-24 15:45:05,190 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 15:45:05,190 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:45:05,190 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 15:45:05,190 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-24 15:45:05,191 INFO L87 Difference]: Start difference. First operand 257 states and 278 transitions. Second operand 5 states. [2020-09-24 15:45:05,840 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 15:45:06,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:45:06,840 INFO L93 Difference]: Finished difference Result 403 states and 455 transitions. [2020-09-24 15:45:06,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 15:45:06,840 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 149 [2020-09-24 15:45:06,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:45:06,847 INFO L225 Difference]: With dead ends: 403 [2020-09-24 15:45:06,847 INFO L226 Difference]: Without dead ends: 295 [2020-09-24 15:45:06,849 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-24 15:45:06,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2020-09-24 15:45:06,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 247. [2020-09-24 15:45:06,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 247 states. [2020-09-24 15:45:06,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 265 transitions. [2020-09-24 15:45:06,891 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 265 transitions. Word has length 149 [2020-09-24 15:45:06,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:45:06,892 INFO L479 AbstractCegarLoop]: Abstraction has 247 states and 265 transitions. [2020-09-24 15:45:06,892 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 15:45:06,892 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 265 transitions. [2020-09-24 15:45:06,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-09-24 15:45:06,895 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:45:06,896 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] [2020-09-24 15:45:06,896 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 15:45:06,896 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:45:06,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:45:06,897 INFO L82 PathProgramCache]: Analyzing trace with hash -1803359450, now seen corresponding path program 1 times [2020-09-24 15:45:06,897 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:45:06,897 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1516078851] [2020-09-24 15:45:06,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:45:06,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:06,967 FATAL L256 erpolLogProxyWrapper]: Difference in size: 5 [2020-09-24 15:45:06,968 FATAL L256 erpolLogProxyWrapper]: Difference in depth: -48 [2020-09-24 15:45:06,968 FATAL L256 erpolLogProxyWrapper]: Difference in width: 48 [2020-09-24 15:45:06,968 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:06,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 195 [2020-09-24 15:45:06,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:06,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 15:45:06,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:06,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:45:06,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 153 [2020-09-24 15:45:06,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 15:45:06,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:45:07,326 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 15:45:07,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:45:07,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:07,339 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:07,339 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:07,339 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:07,339 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:07,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 15:45:07,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:07,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:45:07,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:07,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:45:07,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:45:07,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:45:07,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:45:07,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 15:45:07,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:07,422 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:07,422 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:07,422 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:07,422 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:07,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:45:07,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:07,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:45:07,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:07,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:45:07,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:45:07,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:45:07,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:45:07,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 15:45:07,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:07,427 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:07,427 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:07,427 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:07,428 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:07,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:45:07,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:07,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:45:07,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:07,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:45:07,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:45:07,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:45:07,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:45:07,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 15:45:07,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:07,434 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:07,434 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:07,435 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:07,435 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:07,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:45:07,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:07,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:45:07,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:07,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:45:07,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:45:07,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:45:07,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:45:07,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 15:45:07,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:07,440 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:07,440 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:07,440 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:07,441 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:07,441 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:45:07,441 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:07,441 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:45:07,441 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:07,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:45:07,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:45:07,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:45:07,442 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:45:07,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 15:45:07,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:07,453 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:07,453 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:07,453 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:07,454 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:07,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 15:45:07,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:07,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:45:07,454 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:07,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:45:07,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:45:07,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:45:07,456 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:45:07,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 15:45:07,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:07,467 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:07,468 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:07,468 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:07,468 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:07,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 15:45:07,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:07,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:45:07,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:07,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:45:07,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:45:07,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-24 15:45:07,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:45:07,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-24 15:45:07,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:07,476 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:07,477 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:07,477 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:07,477 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:07,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:45:07,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:07,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:45:07,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:07,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:45:07,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:45:07,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:45:07,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:45:07,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-24 15:45:07,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:07,482 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:07,482 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:07,482 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:07,483 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:07,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:45:07,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:07,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:45:07,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:07,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:45:07,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:45:07,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:45:07,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:45:07,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 15:45:07,539 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1516078851] [2020-09-24 15:45:07,539 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:45:07,539 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 15:45:07,540 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284905264] [2020-09-24 15:45:07,543 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 15:45:07,543 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:45:07,543 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 15:45:07,544 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-24 15:45:07,544 INFO L87 Difference]: Start difference. First operand 247 states and 265 transitions. Second operand 6 states. [2020-09-24 15:45:08,206 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 15:45:09,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:45:09,227 INFO L93 Difference]: Finished difference Result 450 states and 520 transitions. [2020-09-24 15:45:09,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-24 15:45:09,227 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 162 [2020-09-24 15:45:09,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:45:09,231 INFO L225 Difference]: With dead ends: 450 [2020-09-24 15:45:09,231 INFO L226 Difference]: Without dead ends: 318 [2020-09-24 15:45:09,233 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-24 15:45:09,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2020-09-24 15:45:09,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 247. [2020-09-24 15:45:09,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 247 states. [2020-09-24 15:45:09,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 264 transitions. [2020-09-24 15:45:09,273 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 264 transitions. Word has length 162 [2020-09-24 15:45:09,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:45:09,274 INFO L479 AbstractCegarLoop]: Abstraction has 247 states and 264 transitions. [2020-09-24 15:45:09,274 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 15:45:09,274 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 264 transitions. [2020-09-24 15:45:09,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2020-09-24 15:45:09,277 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:45:09,278 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:45:09,278 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 15:45:09,278 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:45:09,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:45:09,279 INFO L82 PathProgramCache]: Analyzing trace with hash 1365821347, now seen corresponding path program 1 times [2020-09-24 15:45:09,279 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:45:09,279 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1700680970] [2020-09-24 15:45:09,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:45:09,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:09,382 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:09,383 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:09,383 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:09,383 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:09,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 207 [2020-09-24 15:45:09,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:09,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-09-24 15:45:09,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:09,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 15:45:09,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-24 15:45:09,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-09-24 15:45:09,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:45:09,759 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 15:45:09,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:45:09,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:09,803 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:09,804 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:09,804 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:09,804 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:09,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 15:45:09,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:09,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:45:09,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:09,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:45:09,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:45:09,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-24 15:45:09,806 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:45:09,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 15:45:09,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:09,870 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:09,871 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:09,871 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:09,871 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:09,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:45:09,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:09,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:45:09,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:09,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:45:09,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:45:09,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:45:09,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:45:09,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 15:45:09,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:09,878 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:09,879 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:09,879 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:09,880 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:09,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:45:09,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:09,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:45:09,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:09,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:45:09,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:45:09,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:45:09,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:45:09,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 15:45:09,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:09,887 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:09,887 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:09,887 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:09,888 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:09,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:45:09,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:09,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:45:09,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:09,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:45:09,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:45:09,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:45:09,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:45:09,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 15:45:09,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:09,894 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:09,894 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:09,895 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:09,895 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:09,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:45:09,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:09,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:45:09,896 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:09,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:45:09,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:45:09,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:45:09,897 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:45:09,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 15:45:09,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:09,915 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:09,915 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:09,916 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:09,916 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:09,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 15:45:09,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:09,918 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:45:09,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:09,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:45:09,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:45:09,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 15:45:09,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:45:09,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 15:45:09,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:09,938 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:09,939 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:09,939 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:09,939 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:09,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 15:45:09,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:09,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:45:09,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:09,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:45:09,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:45:09,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 15:45:09,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:45:09,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-24 15:45:09,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:09,962 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:09,962 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:09,962 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:09,963 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:09,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 15:45:09,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:09,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 15:45:09,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:09,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 15:45:09,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 15:45:09,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-24 15:45:09,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:45:10,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:45:10,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:10,005 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:10,006 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:10,006 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:10,006 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:10,006 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:45:10,006 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:10,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:45:10,007 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:10,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:45:10,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:45:10,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:45:10,008 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:45:10,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-24 15:45:10,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:10,011 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:10,011 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:10,012 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:10,012 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:10,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:45:10,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:10,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:45:10,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:10,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:45:10,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:45:10,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:45:10,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:45:10,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-09-24 15:45:10,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:10,020 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:10,020 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:10,021 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:10,021 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:10,022 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:45:10,022 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:10,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:45:10,023 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:10,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:45:10,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:45:10,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:45:10,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:45:10,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 15:45:10,149 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1700680970] [2020-09-24 15:45:10,149 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:45:10,149 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 15:45:10,150 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251026407] [2020-09-24 15:45:10,151 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 15:45:10,151 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:45:10,151 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 15:45:10,152 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-09-24 15:45:10,152 INFO L87 Difference]: Start difference. First operand 247 states and 264 transitions. Second operand 9 states. [2020-09-24 15:45:10,885 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 15:45:12,536 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 15:45:13,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:45:13,390 INFO L93 Difference]: Finished difference Result 629 states and 750 transitions. [2020-09-24 15:45:13,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-09-24 15:45:13,397 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 170 [2020-09-24 15:45:13,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:45:13,405 INFO L225 Difference]: With dead ends: 629 [2020-09-24 15:45:13,405 INFO L226 Difference]: Without dead ends: 497 [2020-09-24 15:45:13,407 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=159, Invalid=393, Unknown=0, NotChecked=0, Total=552 [2020-09-24 15:45:13,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 497 states. [2020-09-24 15:45:13,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 497 to 356. [2020-09-24 15:45:13,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 356 states. [2020-09-24 15:45:13,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 385 transitions. [2020-09-24 15:45:13,481 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 385 transitions. Word has length 170 [2020-09-24 15:45:13,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:45:13,482 INFO L479 AbstractCegarLoop]: Abstraction has 356 states and 385 transitions. [2020-09-24 15:45:13,482 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 15:45:13,482 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 385 transitions. [2020-09-24 15:45:13,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2020-09-24 15:45:13,485 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:45:13,486 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:45:13,486 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 15:45:13,486 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:45:13,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:45:13,487 INFO L82 PathProgramCache]: Analyzing trace with hash -193373180, now seen corresponding path program 1 times [2020-09-24 15:45:13,487 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:45:13,487 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1545180190] [2020-09-24 15:45:13,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:45:13,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:13,553 FATAL L256 erpolLogProxyWrapper]: Difference in size: 5 [2020-09-24 15:45:13,553 FATAL L256 erpolLogProxyWrapper]: Difference in depth: -72 [2020-09-24 15:45:13,553 FATAL L256 erpolLogProxyWrapper]: Difference in width: 72 [2020-09-24 15:45:13,554 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:13,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 235 [2020-09-24 15:45:13,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:13,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 15:45:13,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:13,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:45:13,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 177 [2020-09-24 15:45:13,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 15:45:13,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:45:13,869 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 15:45:13,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:45:13,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:13,880 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:13,880 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:13,881 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:13,881 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:13,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 15:45:13,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:13,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:45:13,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:13,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:45:13,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:45:13,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:45:13,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:45:14,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 15:45:14,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:14,003 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:14,003 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:14,003 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:14,004 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:14,004 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:45:14,004 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:14,004 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:45:14,004 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:14,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:45:14,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:45:14,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:45:14,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:45:14,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 15:45:14,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:14,009 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:14,010 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:14,010 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:14,010 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:14,011 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:45:14,011 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:14,011 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:45:14,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:14,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:45:14,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:45:14,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:45:14,013 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:45:14,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 15:45:14,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:14,018 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:14,018 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:14,019 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:14,019 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:14,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:45:14,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:14,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 15:45:14,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:14,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:45:14,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:45:14,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:45:14,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:45:14,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 15:45:14,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:14,025 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:14,026 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:14,026 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:14,026 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:14,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:45:14,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:14,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:45:14,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:14,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:45:14,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:45:14,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:45:14,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:45:14,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 15:45:14,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:14,046 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:14,046 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:14,047 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:14,047 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:14,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 15:45:14,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:14,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:45:14,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:14,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:45:14,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:45:14,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:45:14,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:45:14,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 15:45:14,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:14,060 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:14,061 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:14,061 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:14,061 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:14,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 15:45:14,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:14,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:45:14,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:14,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:45:14,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:45:14,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:45:14,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:45:14,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-24 15:45:14,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:14,085 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:14,086 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:14,086 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:14,086 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:14,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-24 15:45:14,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:14,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 15:45:14,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:14,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:45:14,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 15:45:14,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 15:45:14,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:45:14,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:45:14,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:14,107 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:14,107 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:14,108 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:14,108 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:14,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 15:45:14,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:14,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 15:45:14,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:14,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:45:14,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 15:45:14,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 15:45:14,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:45:14,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:45:14,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:14,143 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:14,143 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:14,143 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:14,144 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:14,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 15:45:14,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:14,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 15:45:14,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:14,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 15:45:14,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:45:14,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:45:14,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:45:14,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 15:45:14,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:14,191 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:14,192 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:14,192 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:14,192 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:14,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:45:14,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:14,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:45:14,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:14,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:45:14,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-09-24 15:45:14,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:45:14,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:45:14,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-09-24 15:45:14,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:14,199 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:14,200 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:14,200 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:14,200 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:14,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:45:14,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:14,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:45:14,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:14,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:45:14,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:45:14,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:45:14,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:45:14,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2020-09-24 15:45:14,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:14,207 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:14,207 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:14,207 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:14,208 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:14,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:45:14,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:14,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:45:14,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:14,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:45:14,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:45:14,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:45:14,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:45:14,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 15:45:14,266 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1545180190] [2020-09-24 15:45:14,266 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:45:14,266 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 15:45:14,266 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603031434] [2020-09-24 15:45:14,267 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 15:45:14,268 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:45:14,268 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 15:45:14,268 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-09-24 15:45:14,268 INFO L87 Difference]: Start difference. First operand 356 states and 385 transitions. Second operand 10 states. [2020-09-24 15:45:15,515 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 15:45:15,844 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 15:45:16,191 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 15:45:16,518 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 15:45:16,813 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 15:45:18,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:45:18,132 INFO L93 Difference]: Finished difference Result 743 states and 885 transitions. [2020-09-24 15:45:18,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-24 15:45:18,132 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 194 [2020-09-24 15:45:18,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:45:18,137 INFO L225 Difference]: With dead ends: 743 [2020-09-24 15:45:18,138 INFO L226 Difference]: Without dead ends: 502 [2020-09-24 15:45:18,139 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2020-09-24 15:45:18,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 502 states. [2020-09-24 15:45:18,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 502 to 362. [2020-09-24 15:45:18,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 362 states. [2020-09-24 15:45:18,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 391 transitions. [2020-09-24 15:45:18,206 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 391 transitions. Word has length 194 [2020-09-24 15:45:18,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:45:18,207 INFO L479 AbstractCegarLoop]: Abstraction has 362 states and 391 transitions. [2020-09-24 15:45:18,207 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 15:45:18,207 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 391 transitions. [2020-09-24 15:45:18,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2020-09-24 15:45:18,211 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:45:18,211 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:45:18,211 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 15:45:18,212 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:45:18,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:45:18,212 INFO L82 PathProgramCache]: Analyzing trace with hash 1228867684, now seen corresponding path program 1 times [2020-09-24 15:45:18,212 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:45:18,213 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [372579214] [2020-09-24 15:45:18,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:45:18,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:18,348 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:18,349 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:18,349 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:18,349 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:18,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 235 [2020-09-24 15:45:18,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:18,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-09-24 15:45:18,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:18,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 15:45:18,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 83 [2020-09-24 15:45:18,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 135 [2020-09-24 15:45:18,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:45:18,762 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 15:45:18,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:45:18,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:18,821 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:18,821 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:18,822 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:18,822 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:18,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 15:45:18,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:18,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 15:45:18,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:18,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:45:18,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:45:18,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-09-24 15:45:18,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:45:18,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 15:45:18,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:18,914 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:18,914 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:18,914 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:18,915 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:18,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:45:18,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:18,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 15:45:18,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:18,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:45:18,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:45:18,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:45:18,917 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:45:18,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 15:45:18,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:18,923 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:18,923 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:18,923 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:18,924 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:18,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:45:18,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:18,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:45:18,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:18,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:45:18,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:45:18,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:45:18,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:45:18,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 15:45:18,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:18,932 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:18,932 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:18,933 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:18,933 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:18,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:45:18,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:18,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:45:18,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:18,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:45:18,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:45:18,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:45:18,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:45:18,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 15:45:18,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:18,942 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:18,942 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:18,943 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:18,943 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:18,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:45:18,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:18,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:45:18,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:18,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:45:18,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:45:18,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:45:18,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:45:18,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 15:45:18,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:18,964 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:18,964 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:18,964 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:18,965 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:18,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 15:45:18,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:18,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:45:18,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:18,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:45:18,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:45:18,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 15:45:18,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:45:18,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 15:45:18,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:18,992 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:18,992 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:18,993 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:18,993 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:18,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 15:45:18,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:18,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 15:45:18,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:18,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:45:18,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:45:18,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 15:45:18,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:45:19,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-24 15:45:19,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:19,024 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:19,024 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:19,024 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:19,025 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:19,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-24 15:45:19,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:19,026 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:45:19,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:19,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:45:19,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:45:19,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-09-24 15:45:19,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:45:19,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:45:19,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:19,041 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:19,041 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:19,041 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:19,042 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:19,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 15:45:19,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:19,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 15:45:19,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:19,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:45:19,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:45:19,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:45:19,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:45:19,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:45:19,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:19,057 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:19,057 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:19,057 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:19,058 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:19,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 15:45:19,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:19,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:45:19,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:19,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:45:19,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:45:19,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:45:19,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:45:19,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 15:45:19,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:19,067 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:19,068 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:19,068 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:19,068 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:19,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:45:19,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:19,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:45:19,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:19,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:45:19,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:45:19,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:45:19,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:45:19,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-09-24 15:45:19,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:19,081 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:19,081 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:19,081 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:19,082 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:19,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:45:19,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:19,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 15:45:19,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:19,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:45:19,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:45:19,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:45:19,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:45:19,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2020-09-24 15:45:19,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:19,116 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:19,117 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:19,117 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:19,117 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:19,118 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:45:19,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:19,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:45:19,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:19,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:45:19,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:45:19,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:45:19,120 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:45:19,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 15:45:19,181 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [372579214] [2020-09-24 15:45:19,182 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:45:19,182 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-24 15:45:19,183 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588976593] [2020-09-24 15:45:19,184 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-24 15:45:19,184 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:45:19,184 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-24 15:45:19,184 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-09-24 15:45:19,185 INFO L87 Difference]: Start difference. First operand 362 states and 391 transitions. Second operand 11 states. [2020-09-24 15:45:19,678 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 15:45:21,196 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 15:45:21,540 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 15:45:21,906 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 15:45:22,218 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 15:45:22,888 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:45:23,289 WARN L193 SmtUtils]: Spent 372.00 ms on a formula simplification that was a NOOP. DAG size: 198 [2020-09-24 15:45:23,606 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-24 15:45:24,040 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:45:25,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:45:25,568 INFO L93 Difference]: Finished difference Result 1059 states and 1292 transitions. [2020-09-24 15:45:25,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-09-24 15:45:25,568 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 194 [2020-09-24 15:45:25,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:45:25,576 INFO L225 Difference]: With dead ends: 1059 [2020-09-24 15:45:25,576 INFO L226 Difference]: Without dead ends: 812 [2020-09-24 15:45:25,581 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 208 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=270, Invalid=722, Unknown=0, NotChecked=0, Total=992 [2020-09-24 15:45:25,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 812 states. [2020-09-24 15:45:25,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 812 to 563. [2020-09-24 15:45:25,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 563 states. [2020-09-24 15:45:25,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 563 states to 563 states and 613 transitions. [2020-09-24 15:45:25,684 INFO L78 Accepts]: Start accepts. Automaton has 563 states and 613 transitions. Word has length 194 [2020-09-24 15:45:25,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:45:25,684 INFO L479 AbstractCegarLoop]: Abstraction has 563 states and 613 transitions. [2020-09-24 15:45:25,684 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-24 15:45:25,685 INFO L276 IsEmpty]: Start isEmpty. Operand 563 states and 613 transitions. [2020-09-24 15:45:25,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2020-09-24 15:45:25,687 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:45:25,687 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:45:25,687 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-24 15:45:25,688 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:45:25,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:45:25,688 INFO L82 PathProgramCache]: Analyzing trace with hash -624986246, now seen corresponding path program 1 times [2020-09-24 15:45:25,688 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:45:25,689 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [606473858] [2020-09-24 15:45:25,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:45:25,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:25,806 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:25,807 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:25,807 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:25,807 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:25,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 242 [2020-09-24 15:45:25,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:25,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-09-24 15:45:25,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:25,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-24 15:45:25,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-24 15:45:25,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 159 [2020-09-24 15:45:25,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:45:26,263 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 15:45:26,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:45:26,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:26,300 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:26,300 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:26,300 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:26,300 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:26,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 15:45:26,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:26,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:45:26,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:26,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:45:26,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:45:26,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-24 15:45:26,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:45:26,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 15:45:26,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:26,351 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:26,351 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:26,351 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:26,351 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:26,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:45:26,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:26,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:45:26,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:26,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:45:26,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:45:26,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:45:26,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:45:26,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 15:45:26,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:26,356 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:26,356 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:26,357 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:26,357 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:26,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:45:26,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:26,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:45:26,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:26,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:45:26,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:45:26,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:45:26,358 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:45:26,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 15:45:26,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:26,364 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:26,364 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:26,364 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:26,365 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:26,365 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:45:26,365 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:26,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:45:26,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:26,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:45:26,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:45:26,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:45:26,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:45:26,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 15:45:26,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:26,370 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:26,371 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:26,371 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:26,371 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:26,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:45:26,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:26,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:45:26,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:26,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:45:26,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:45:26,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:45:26,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:45:26,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 15:45:26,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:26,388 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:26,388 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:26,388 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:26,389 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:26,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 15:45:26,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:26,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:45:26,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:26,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:45:26,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:45:26,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 15:45:26,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:45:26,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-24 15:45:26,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:26,404 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:26,404 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:26,405 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:26,405 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:26,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 15:45:26,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:26,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:45:26,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:26,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:45:26,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:45:26,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 15:45:26,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:45:26,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 15:45:26,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:26,420 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:26,421 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:26,422 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:26,422 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:26,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 15:45:26,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:26,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:45:26,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:26,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:45:26,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:45:26,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 15:45:26,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:45:26,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-24 15:45:26,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:26,442 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:26,442 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:26,442 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:26,443 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:26,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-24 15:45:26,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:26,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:45:26,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:26,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:45:26,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:45:26,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 15:45:26,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:45:26,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:45:26,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:26,454 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:26,454 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:26,454 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:26,455 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:26,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 15:45:26,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:26,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:45:26,455 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:26,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:45:26,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:45:26,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-24 15:45:26,456 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:45:26,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:45:26,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:26,461 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:26,461 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:26,461 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:26,462 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:26,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 15:45:26,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:26,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:45:26,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:26,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:45:26,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:45:26,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:45:26,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:45:26,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 15:45:26,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:26,469 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:26,469 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:26,469 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:26,470 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:26,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:45:26,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:26,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 15:45:26,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:26,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:45:26,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:45:26,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:45:26,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:45:26,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2020-09-24 15:45:26,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:26,479 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:26,480 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:26,480 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:26,480 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:26,480 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:45:26,480 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:26,481 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 15:45:26,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:26,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:45:26,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:45:26,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:45:26,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:45:26,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2020-09-24 15:45:26,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:26,495 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:26,495 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:26,495 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:26,495 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:26,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:45:26,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:26,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 15:45:26,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:26,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:45:26,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:45:26,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:45:26,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:45:26,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 15:45:26,603 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [606473858] [2020-09-24 15:45:26,604 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:45:26,604 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-24 15:45:26,604 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291825591] [2020-09-24 15:45:26,605 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-24 15:45:26,605 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:45:26,605 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-24 15:45:26,610 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2020-09-24 15:45:26,610 INFO L87 Difference]: Start difference. First operand 563 states and 613 transitions. Second operand 12 states. [2020-09-24 15:45:27,185 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 15:45:29,082 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 197 [2020-09-24 15:45:29,419 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 203 [2020-09-24 15:45:29,807 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 15:45:30,485 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-24 15:45:31,923 WARN L193 SmtUtils]: Spent 602.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 192 [2020-09-24 15:45:32,582 WARN L193 SmtUtils]: Spent 630.00 ms on a formula simplification. DAG size of input: 204 DAG size of output: 194 [2020-09-24 15:45:32,976 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 15:45:33,290 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:45:33,605 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 15:45:34,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:45:34,285 INFO L93 Difference]: Finished difference Result 1390 states and 1677 transitions. [2020-09-24 15:45:34,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2020-09-24 15:45:34,286 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 199 [2020-09-24 15:45:34,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:45:34,292 INFO L225 Difference]: With dead ends: 1390 [2020-09-24 15:45:34,292 INFO L226 Difference]: Without dead ends: 942 [2020-09-24 15:45:34,296 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 508 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=500, Invalid=1570, Unknown=0, NotChecked=0, Total=2070 [2020-09-24 15:45:34,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 942 states. [2020-09-24 15:45:34,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 942 to 561. [2020-09-24 15:45:34,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 561 states. [2020-09-24 15:45:34,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 561 states to 561 states and 609 transitions. [2020-09-24 15:45:34,394 INFO L78 Accepts]: Start accepts. Automaton has 561 states and 609 transitions. Word has length 199 [2020-09-24 15:45:34,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:45:34,395 INFO L479 AbstractCegarLoop]: Abstraction has 561 states and 609 transitions. [2020-09-24 15:45:34,395 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-24 15:45:34,395 INFO L276 IsEmpty]: Start isEmpty. Operand 561 states and 609 transitions. [2020-09-24 15:45:34,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2020-09-24 15:45:34,400 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:45:34,401 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:45:34,401 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-24 15:45:34,401 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:45:34,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:45:34,402 INFO L82 PathProgramCache]: Analyzing trace with hash 173916020, now seen corresponding path program 1 times [2020-09-24 15:45:34,402 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:45:34,402 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [110983612] [2020-09-24 15:45:34,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:45:34,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:34,472 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:34,472 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:34,472 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:34,472 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:34,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 271 [2020-09-24 15:45:34,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:34,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 15:45:34,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:34,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 15:45:34,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 192 [2020-09-24 15:45:34,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 15:45:34,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:45:34,765 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 15:45:34,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:45:34,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:34,776 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:34,776 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:34,777 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:34,777 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:34,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 15:45:34,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:34,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:45:34,778 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:34,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:45:34,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:45:34,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:45:34,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:45:34,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 15:45:34,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:34,815 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:34,815 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:34,816 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:34,816 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:34,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:45:34,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:34,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:45:34,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:34,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:45:34,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:45:34,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:45:34,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:45:34,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 15:45:34,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:34,819 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:34,820 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:34,820 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:34,820 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:34,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:45:34,820 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:34,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-24 15:45:34,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:34,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:45:34,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:45:34,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:45:34,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:45:34,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 15:45:34,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:34,824 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:34,824 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:34,824 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:34,825 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:34,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:45:34,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:34,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-24 15:45:34,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:34,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:45:34,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:45:34,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:45:34,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:45:34,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 15:45:34,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:34,829 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:34,829 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:34,829 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:34,829 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:34,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:45:34,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:34,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-24 15:45:34,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:34,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:45:34,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:45:34,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:45:34,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:45:34,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 15:45:34,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:34,838 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:34,838 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:34,838 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:34,838 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:34,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 15:45:34,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:34,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-24 15:45:34,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:34,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:45:34,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:45:34,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:45:34,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:45:34,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-24 15:45:34,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:34,848 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:34,849 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:34,849 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:34,849 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:34,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 15:45:34,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:34,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:45:34,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:34,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:45:34,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:45:34,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:45:34,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:45:34,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 15:45:34,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:34,862 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:34,862 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:34,862 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:34,862 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:34,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 15:45:34,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:34,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:45:34,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:34,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:45:34,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:45:34,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:45:34,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:45:34,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-24 15:45:34,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:34,890 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:34,891 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:34,891 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:34,891 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:34,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-24 15:45:34,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:34,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 15:45:34,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:34,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 15:45:34,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-24 15:45:34,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 15:45:34,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:45:34,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:45:34,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:34,956 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:34,957 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:34,957 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:34,957 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:34,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 15:45:34,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:34,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 15:45:34,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:34,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:45:34,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:45:34,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-24 15:45:34,958 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:45:35,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:45:35,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:35,005 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:35,006 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:35,007 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:35,007 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:35,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 15:45:35,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:35,008 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:45:35,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:35,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:45:35,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:45:35,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:45:35,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:45:35,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 15:45:35,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:35,015 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:35,015 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:35,016 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:35,016 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:35,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-24 15:45:35,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:35,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:45:35,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:35,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:45:35,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-24 15:45:35,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:45:35,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:45:35,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 15:45:35,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:35,024 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:35,024 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:35,024 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:35,024 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:35,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 15:45:35,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:35,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:45:35,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:35,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:45:35,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:45:35,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:45:35,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:45:35,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 15:45:35,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:35,031 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:35,031 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:35,031 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:35,031 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:35,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:45:35,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:35,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:45:35,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:35,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:45:35,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:45:35,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:45:35,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:45:35,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-24 15:45:35,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:35,037 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:35,037 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:35,037 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:35,038 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:35,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 15:45:35,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:35,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:45:35,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:35,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:45:35,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:45:35,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:45:35,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:45:35,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-09-24 15:45:35,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:35,047 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:35,047 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:35,048 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:35,048 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:35,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:45:35,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:35,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:45:35,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:35,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:45:35,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:45:35,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:45:35,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:45:35,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2020-09-24 15:45:35,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:35,053 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:35,053 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:35,053 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:35,054 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:35,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:45:35,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:35,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:45:35,055 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:35,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:45:35,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:45:35,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:45:35,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:45:35,134 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 15:45:35,135 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [110983612] [2020-09-24 15:45:35,135 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:45:35,135 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-24 15:45:35,135 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999759805] [2020-09-24 15:45:35,136 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-24 15:45:35,136 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:45:35,136 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-24 15:45:35,137 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2020-09-24 15:45:35,137 INFO L87 Difference]: Start difference. First operand 561 states and 609 transitions. Second operand 12 states. [2020-09-24 15:45:36,552 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 15:45:36,848 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 15:45:37,143 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 15:45:37,440 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 15:45:37,773 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-24 15:45:38,079 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:45:39,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:45:39,809 INFO L93 Difference]: Finished difference Result 1402 states and 1728 transitions. [2020-09-24 15:45:39,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-09-24 15:45:39,810 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 222 [2020-09-24 15:45:39,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:45:39,816 INFO L225 Difference]: With dead ends: 1402 [2020-09-24 15:45:39,816 INFO L226 Difference]: Without dead ends: 956 [2020-09-24 15:45:39,818 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=217, Invalid=539, Unknown=0, NotChecked=0, Total=756 [2020-09-24 15:45:39,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 956 states. [2020-09-24 15:45:39,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 956 to 577. [2020-09-24 15:45:39,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 577 states. [2020-09-24 15:45:39,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 577 states to 577 states and 625 transitions. [2020-09-24 15:45:39,900 INFO L78 Accepts]: Start accepts. Automaton has 577 states and 625 transitions. Word has length 222 [2020-09-24 15:45:39,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:45:39,901 INFO L479 AbstractCegarLoop]: Abstraction has 577 states and 625 transitions. [2020-09-24 15:45:39,901 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-24 15:45:39,901 INFO L276 IsEmpty]: Start isEmpty. Operand 577 states and 625 transitions. [2020-09-24 15:45:39,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2020-09-24 15:45:39,903 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:45:39,903 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:45:39,904 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-24 15:45:39,904 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:45:39,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:45:39,904 INFO L82 PathProgramCache]: Analyzing trace with hash 993243665, now seen corresponding path program 1 times [2020-09-24 15:45:39,905 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:45:39,905 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1754712012] [2020-09-24 15:45:39,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:45:39,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:39,984 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:39,984 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:39,984 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:39,985 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:39,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 271 [2020-09-24 15:45:39,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:39,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-24 15:45:39,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:39,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-24 15:45:39,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-09-24 15:45:39,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 102 [2020-09-24 15:45:39,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:45:40,304 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 15:45:40,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:45:40,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:40,337 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:40,338 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:40,338 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:40,338 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:40,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 15:45:40,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:40,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:45:40,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:40,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:45:40,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:45:40,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-24 15:45:40,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:45:40,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 15:45:40,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:40,381 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:40,382 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:40,382 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:40,382 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:40,382 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:45:40,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:40,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:45:40,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:40,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:45:40,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:45:40,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:45:40,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:45:40,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 15:45:40,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:40,386 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:40,387 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:40,387 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:40,387 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:40,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:45:40,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:40,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:45:40,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:40,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:45:40,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:45:40,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:45:40,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:45:40,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 15:45:40,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:40,395 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:40,395 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:40,396 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:40,396 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:40,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:45:40,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:40,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 15:45:40,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:40,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:45:40,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:45:40,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:45:40,397 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:45:40,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 15:45:40,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:40,401 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:40,402 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:40,402 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:40,402 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:40,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:45:40,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:40,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:45:40,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:40,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:45:40,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:45:40,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:45:40,403 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:45:40,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 15:45:40,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:40,420 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:40,420 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:40,420 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:40,421 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:40,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 15:45:40,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:40,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:45:40,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:40,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:45:40,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:45:40,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 15:45:40,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:45:40,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-24 15:45:40,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:40,433 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:40,433 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:40,433 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:40,434 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:40,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 15:45:40,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:40,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:45:40,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:40,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:45:40,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:45:40,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 15:45:40,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:45:40,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 15:45:40,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:40,446 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:40,446 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:40,446 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:40,446 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:40,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 15:45:40,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:40,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:45:40,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:40,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:45:40,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:45:40,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 15:45:40,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:45:40,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-24 15:45:40,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:40,466 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:40,466 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:40,466 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:40,467 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:40,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-24 15:45:40,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:40,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:45:40,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:40,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:45:40,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-09-24 15:45:40,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-09-24 15:45:40,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:45:40,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:45:40,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:40,489 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:40,489 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:40,489 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:40,489 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:40,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 15:45:40,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:40,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:45:40,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:40,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:45:40,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:45:40,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 15:45:40,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:45:40,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:45:40,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:40,506 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:40,506 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:40,507 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:40,507 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:40,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 15:45:40,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:40,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:45:40,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:40,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:45:40,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:45:40,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 15:45:40,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:45:40,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 15:45:40,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:40,530 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:40,531 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:40,531 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:40,531 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:40,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-24 15:45:40,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:40,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:45:40,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:40,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:45:40,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:45:40,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-24 15:45:40,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:45:40,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 15:45:40,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:40,540 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:40,540 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:40,540 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:40,541 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:40,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 15:45:40,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:40,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:45:40,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:40,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:45:40,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:45:40,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:45:40,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:45:40,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 15:45:40,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:40,547 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:40,548 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:40,548 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:40,548 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:40,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:45:40,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:40,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:45:40,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:40,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:45:40,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:45:40,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:45:40,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:45:40,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-24 15:45:40,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:40,555 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:40,555 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:40,555 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:40,556 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:40,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 15:45:40,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:40,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:45:40,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:40,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:45:40,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:45:40,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:45:40,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:45:40,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-09-24 15:45:40,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:40,566 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:40,566 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:40,567 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:40,567 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:40,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:45:40,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:40,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:45:40,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:40,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:45:40,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:45:40,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:45:40,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:45:40,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2020-09-24 15:45:40,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:40,573 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:40,573 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:40,573 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:40,573 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:40,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:45:40,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:40,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:45:40,574 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:40,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:45:40,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:45:40,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:45:40,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:45:40,655 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 15:45:40,655 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1754712012] [2020-09-24 15:45:40,656 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:45:40,656 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 15:45:40,656 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371306566] [2020-09-24 15:45:40,657 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 15:45:40,657 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:45:40,658 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 15:45:40,658 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-09-24 15:45:40,658 INFO L87 Difference]: Start difference. First operand 577 states and 625 transitions. Second operand 9 states. [2020-09-24 15:45:41,350 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 15:45:42,026 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 15:45:45,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:45:45,923 INFO L93 Difference]: Finished difference Result 2101 states and 2656 transitions. [2020-09-24 15:45:45,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2020-09-24 15:45:45,924 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 222 [2020-09-24 15:45:45,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:45:45,933 INFO L225 Difference]: With dead ends: 2101 [2020-09-24 15:45:45,933 INFO L226 Difference]: Without dead ends: 1639 [2020-09-24 15:45:45,936 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 45 SyntacticMatches, 2 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 421 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=295, Invalid=1111, Unknown=0, NotChecked=0, Total=1406 [2020-09-24 15:45:45,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1639 states. [2020-09-24 15:45:46,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1639 to 995. [2020-09-24 15:45:46,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 995 states. [2020-09-24 15:45:46,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 995 states to 995 states and 1105 transitions. [2020-09-24 15:45:46,102 INFO L78 Accepts]: Start accepts. Automaton has 995 states and 1105 transitions. Word has length 222 [2020-09-24 15:45:46,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:45:46,103 INFO L479 AbstractCegarLoop]: Abstraction has 995 states and 1105 transitions. [2020-09-24 15:45:46,103 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 15:45:46,103 INFO L276 IsEmpty]: Start isEmpty. Operand 995 states and 1105 transitions. [2020-09-24 15:45:46,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2020-09-24 15:45:46,106 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:45:46,106 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:45:46,106 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-24 15:45:46,107 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:45:46,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:45:46,107 INFO L82 PathProgramCache]: Analyzing trace with hash -347403710, now seen corresponding path program 1 times [2020-09-24 15:45:46,107 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:45:46,108 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [551226683] [2020-09-24 15:45:46,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:45:46,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:46,186 FATAL L256 erpolLogProxyWrapper]: Difference in size: 5 [2020-09-24 15:45:46,186 FATAL L256 erpolLogProxyWrapper]: Difference in depth: -52 [2020-09-24 15:45:46,186 FATAL L256 erpolLogProxyWrapper]: Difference in width: 52 [2020-09-24 15:45:46,186 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:46,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 278 [2020-09-24 15:45:46,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:46,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 15:45:46,187 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:46,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 15:45:46,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 157 [2020-09-24 15:45:46,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-24 15:45:46,188 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:45:46,463 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 15:45:46,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:45:46,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:46,478 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:46,478 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:46,478 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:46,478 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:46,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 15:45:46,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:46,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:45:46,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:46,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:45:46,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:45:46,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:45:46,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:45:46,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 15:45:46,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:46,516 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:46,516 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:46,517 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:46,517 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:46,517 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:45:46,517 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:46,518 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:45:46,518 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:46,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:45:46,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:45:46,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:45:46,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:45:46,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 15:45:46,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:46,522 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:46,522 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:46,522 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:46,522 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:46,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:45:46,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:46,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:45:46,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:46,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:45:46,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:45:46,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:45:46,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:45:46,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 15:45:46,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:46,532 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:46,532 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:46,532 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:46,533 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:46,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:45:46,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:46,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:45:46,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:46,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:45:46,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:45:46,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:45:46,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:45:46,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 15:45:46,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:46,536 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:46,536 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:46,537 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:46,537 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:46,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:45:46,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:46,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-24 15:45:46,538 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:46,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:45:46,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:45:46,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:45:46,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:45:46,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 15:45:46,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:46,551 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:46,551 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:46,552 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:46,552 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:46,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 15:45:46,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:46,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:45:46,553 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:46,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:45:46,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:45:46,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:45:46,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:45:46,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 15:45:46,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:46,566 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:46,566 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:46,566 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:46,566 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:46,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 15:45:46,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:46,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:45:46,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:46,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:45:46,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:45:46,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:45:46,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:45:46,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 15:45:46,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:46,581 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:46,581 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:46,582 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:46,582 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:46,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 15:45:46,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:46,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:45:46,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:46,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:45:46,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:45:46,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 15:45:46,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:45:46,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-24 15:45:46,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:46,605 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:46,606 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:46,606 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:46,607 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:46,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 15:45:46,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:46,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 15:45:46,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:46,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:45:46,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:45:46,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 15:45:46,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:45:46,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-09-24 15:45:46,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:46,637 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:46,638 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:46,638 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:46,638 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:46,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-24 15:45:46,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:46,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 15:45:46,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:46,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 15:45:46,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 45 [2020-09-24 15:45:46,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-09-24 15:45:46,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:45:46,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:45:46,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:46,661 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:46,662 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:46,662 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:46,662 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:46,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 15:45:46,662 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:46,662 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-24 15:45:46,663 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:46,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:45:46,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:45:46,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:45:46,663 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:45:46,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:45:46,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:46,667 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:46,668 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:46,668 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:46,668 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:46,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 15:45:46,669 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:46,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:45:46,669 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:46,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:45:46,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:45:46,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:45:46,670 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:45:46,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 15:45:46,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:46,682 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:46,682 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:46,682 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:46,682 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:46,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-24 15:45:46,683 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:46,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 15:45:46,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:46,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 15:45:46,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:45:46,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-24 15:45:46,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:45:46,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 15:45:46,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:46,728 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:46,728 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:46,728 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:46,729 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:46,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 15:45:46,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:46,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 15:45:46,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:46,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 15:45:46,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:45:46,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-24 15:45:46,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:45:46,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 15:45:46,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:46,776 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:46,776 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:46,776 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:46,777 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:46,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:45:46,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:46,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:45:46,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:46,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 15:45:46,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:45:46,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 15:45:46,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:45:46,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-24 15:45:46,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:46,819 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:46,819 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:46,819 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:46,820 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:46,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 15:45:46,820 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:46,820 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:45:46,820 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:46,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:45:46,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:45:46,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 15:45:46,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:45:46,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2020-09-24 15:45:46,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:46,827 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:46,827 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:46,828 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:46,828 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:46,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:45:46,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:46,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:45:46,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:46,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:45:46,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:45:46,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:45:46,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:45:46,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2020-09-24 15:45:46,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:46,833 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:46,833 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:46,834 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:46,834 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:46,834 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:45:46,834 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:46,834 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-24 15:45:46,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:46,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:45:46,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:45:46,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:45:46,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:45:46,888 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-24 15:45:46,888 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [551226683] [2020-09-24 15:45:46,888 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 15:45:46,889 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-09-24 15:45:46,889 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030181301] [2020-09-24 15:45:46,889 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-09-24 15:45:46,890 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:45:46,890 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-09-24 15:45:46,893 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=234, Unknown=0, NotChecked=0, Total=272 [2020-09-24 15:45:46,893 INFO L87 Difference]: Start difference. First operand 995 states and 1105 transitions. Second operand 17 states. [2020-09-24 15:45:47,499 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 15:45:48,668 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 15:45:50,035 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 15:45:50,347 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 15:45:50,725 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 15:45:51,042 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 15:45:51,352 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 15:45:51,658 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:45:51,963 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 15:45:52,274 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 15:45:52,627 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 15:45:53,014 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:45:53,333 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 15:45:53,726 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:45:54,406 WARN L193 SmtUtils]: Spent 545.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 191 [2020-09-24 15:45:55,159 WARN L193 SmtUtils]: Spent 593.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 193