/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options interpolation-heuristic=FIRST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product56.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-eb0fd7c [2020-09-21 11:13:59,274 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-21 11:13:59,280 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-21 11:13:59,321 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-21 11:13:59,323 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-21 11:13:59,331 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-21 11:13:59,334 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-21 11:13:59,337 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-21 11:13:59,340 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-21 11:13:59,343 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-21 11:13:59,344 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-21 11:13:59,345 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-21 11:13:59,345 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-21 11:13:59,349 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-21 11:13:59,351 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-21 11:13:59,353 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-21 11:13:59,355 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-21 11:13:59,356 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-21 11:13:59,357 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-21 11:13:59,366 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-21 11:13:59,368 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-21 11:13:59,369 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-21 11:13:59,371 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-21 11:13:59,373 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-21 11:13:59,385 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-21 11:13:59,385 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-21 11:13:59,385 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-21 11:13:59,391 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-21 11:13:59,392 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-21 11:13:59,393 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-21 11:13:59,393 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-21 11:13:59,394 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-21 11:13:59,395 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-21 11:13:59,396 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-21 11:13:59,397 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-21 11:13:59,397 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-21 11:13:59,398 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-21 11:13:59,398 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-21 11:13:59,398 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-21 11:13:59,399 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-21 11:13:59,400 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-21 11:13:59,401 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-21 11:13:59,427 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-21 11:13:59,427 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-21 11:13:59,428 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-21 11:13:59,428 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-21 11:13:59,429 INFO L138 SettingsManager]: * Use SBE=true [2020-09-21 11:13:59,429 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-21 11:13:59,429 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-21 11:13:59,429 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-21 11:13:59,429 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-21 11:13:59,430 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-21 11:13:59,430 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-21 11:13:59,430 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-21 11:13:59,430 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-21 11:13:59,430 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-21 11:13:59,431 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-21 11:13:59,431 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-21 11:13:59,431 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-21 11:13:59,431 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-21 11:13:59,431 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-21 11:13:59,432 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-21 11:13:59,432 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-21 11:13:59,432 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 11:13:59,432 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-21 11:13:59,432 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-21 11:13:59,433 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-21 11:13:59,433 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-21 11:13:59,433 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-21 11:13:59,433 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-21 11:13:59,433 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-21 11:13:59,434 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; [2020-09-21 11:13:59,896 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-21 11:13:59,922 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-21 11:13:59,927 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-21 11:13:59,929 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-21 11:13:59,931 INFO L275 PluginConnector]: CDTParser initialized [2020-09-21 11:13:59,932 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product56.cil.c [2020-09-21 11:14:00,024 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/70a3bafe8/8290c7f5d6394aa085007ed4eff4f032/FLAGa69163286 [2020-09-21 11:14:00,622 INFO L306 CDTParser]: Found 1 translation units. [2020-09-21 11:14:00,623 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product56.cil.c [2020-09-21 11:14:00,648 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/70a3bafe8/8290c7f5d6394aa085007ed4eff4f032/FLAGa69163286 [2020-09-21 11:14:00,982 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/70a3bafe8/8290c7f5d6394aa085007ed4eff4f032 [2020-09-21 11:14:00,995 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-21 11:14:01,001 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-21 11:14:01,002 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-21 11:14:01,003 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-21 11:14:01,008 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-21 11:14:01,009 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 11:14:00" (1/1) ... [2020-09-21 11:14:01,013 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68320178 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:14:01, skipping insertion in model container [2020-09-21 11:14:01,014 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 11:14:00" (1/1) ... [2020-09-21 11:14:01,023 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-21 11:14:01,089 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-21 11:14:01,555 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 11:14:01,583 INFO L203 MainTranslator]: Completed pre-run [2020-09-21 11:14:01,689 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 11:14:01,729 INFO L208 MainTranslator]: Completed translation [2020-09-21 11:14:01,729 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:14:01 WrapperNode [2020-09-21 11:14:01,729 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-21 11:14:01,730 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-21 11:14:01,730 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-21 11:14:01,731 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-21 11:14:01,747 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:14:01" (1/1) ... [2020-09-21 11:14:01,747 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:14:01" (1/1) ... [2020-09-21 11:14:01,769 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:14:01" (1/1) ... [2020-09-21 11:14:01,769 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:14:01" (1/1) ... [2020-09-21 11:14:01,800 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:14:01" (1/1) ... [2020-09-21 11:14:01,812 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:14:01" (1/1) ... [2020-09-21 11:14:01,818 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:14:01" (1/1) ... [2020-09-21 11:14:01,826 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-21 11:14:01,827 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-21 11:14:01,827 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-21 11:14:01,827 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-21 11:14:01,828 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:14:01" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 11:14:01,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-21 11:14:01,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-21 11:14:01,940 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-21 11:14:01,940 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-21 11:14:01,940 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-21 11:14:01,940 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-21 11:14:01,941 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-21 11:14:01,941 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-21 11:14:01,941 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-21 11:14:01,942 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-21 11:14:01,942 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-21 11:14:01,943 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-21 11:14:01,943 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-21 11:14:01,943 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-21 11:14:01,943 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-21 11:14:01,944 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-21 11:14:01,945 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-21 11:14:01,945 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-21 11:14:01,945 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-21 11:14:01,945 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-21 11:14:01,946 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-21 11:14:01,946 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-21 11:14:01,946 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-21 11:14:01,946 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-21 11:14:01,946 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-09-21 11:14:01,947 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-21 11:14:01,948 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-21 11:14:01,948 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-21 11:14:01,948 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-21 11:14:01,948 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-21 11:14:01,948 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-21 11:14:01,948 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-21 11:14:01,949 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-21 11:14:01,949 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-21 11:14:01,949 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-21 11:14:01,949 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-21 11:14:01,949 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-21 11:14:01,949 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-21 11:14:01,950 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-21 11:14:01,950 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-21 11:14:01,950 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-21 11:14:01,950 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-21 11:14:01,950 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-21 11:14:01,950 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-21 11:14:01,950 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-21 11:14:01,951 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-21 11:14:01,951 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-21 11:14:01,951 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-21 11:14:01,951 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-21 11:14:01,951 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-21 11:14:01,951 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-21 11:14:01,952 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-21 11:14:01,952 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-21 11:14:01,952 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-21 11:14:01,952 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-21 11:14:01,953 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-21 11:14:01,953 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-21 11:14:01,953 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-21 11:14:01,953 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-09-21 11:14:01,953 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-21 11:14:01,954 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-21 11:14:01,954 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-21 11:14:01,954 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-21 11:14:01,954 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-21 11:14:01,954 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-21 11:14:01,954 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-21 11:14:01,955 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-21 11:14:01,955 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-21 11:14:01,955 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-21 11:14:01,955 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-21 11:14:01,955 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-21 11:14:01,956 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-21 11:14:01,957 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-21 11:14:01,957 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-21 11:14:01,958 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-21 11:14:01,958 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-21 11:14:01,958 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-21 11:14:01,959 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-21 11:14:01,959 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-21 11:14:01,959 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-21 11:14:01,959 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-21 11:14:01,960 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-21 11:14:01,960 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-21 11:14:01,960 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-21 11:14:01,960 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-21 11:14:01,961 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-21 11:14:01,961 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-21 11:14:01,961 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-21 11:14:01,961 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-21 11:14:01,961 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-21 11:14:01,961 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-21 11:14:01,961 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-21 11:14:01,962 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-21 11:14:01,962 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-21 11:14:01,962 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-21 11:14:01,962 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-21 11:14:01,962 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-21 11:14:01,962 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-21 11:14:01,962 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-21 11:14:01,963 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-21 11:14:03,168 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-21 11:14:03,168 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-21 11:14:03,175 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 11:14:03 BoogieIcfgContainer [2020-09-21 11:14:03,175 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-21 11:14:03,176 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-21 11:14:03,176 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-21 11:14:03,180 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-21 11:14:03,181 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 11:14:00" (1/3) ... [2020-09-21 11:14:03,182 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a532201 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 11:14:03, skipping insertion in model container [2020-09-21 11:14:03,182 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:14:01" (2/3) ... [2020-09-21 11:14:03,182 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a532201 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 11:14:03, skipping insertion in model container [2020-09-21 11:14:03,182 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 11:14:03" (3/3) ... [2020-09-21 11:14:03,185 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product56.cil.c [2020-09-21 11:14:03,197 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-21 11:14:03,207 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-21 11:14:03,231 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-21 11:14:03,266 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-21 11:14:03,266 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-21 11:14:03,266 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-21 11:14:03,267 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-21 11:14:03,267 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-21 11:14:03,267 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-21 11:14:03,267 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-21 11:14:03,267 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-21 11:14:03,296 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states. [2020-09-21 11:14:03,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-09-21 11:14:03,309 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:14:03,311 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] [2020-09-21 11:14:03,311 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:14:03,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:14:03,319 INFO L82 PathProgramCache]: Analyzing trace with hash -559348317, now seen corresponding path program 1 times [2020-09-21 11:14:03,331 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:14:03,332 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1638919696] [2020-09-21 11:14:03,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:14:03,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:03,675 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:03,675 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:03,675 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:03,676 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:03,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-09-21 11:14:03,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:03,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-21 11:14:03,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:03,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:03,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 43 [2020-09-21 11:14:03,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:03,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:04,084 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:14:04,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:14:04,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:04,100 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:04,100 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:04,100 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:04,101 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:04,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:04,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:04,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:04,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:04,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:04,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:04,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:04,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:04,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:14:04,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:04,162 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:04,163 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:04,163 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:04,163 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:04,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:14:04,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:04,165 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:04,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:04,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:04,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:04,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:04,167 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:04,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:14:04,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:04,178 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:04,178 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:04,178 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:04,179 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:04,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:14:04,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:04,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 11:14:04,180 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:04,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:04,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:04,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:04,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-21 11:14:04,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:14:04,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:04,190 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:04,190 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:04,191 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:04,191 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:04,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:04,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:04,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:04,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:04,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:04,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:04,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:04,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:04,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:14:04,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:04,201 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:04,201 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:04,202 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:04,202 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:04,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:14:04,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:04,203 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:04,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:04,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:04,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:04,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:04,204 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:04,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-09-21 11:14:04,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:04,209 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:04,209 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:04,209 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:04,210 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:04,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:04,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:04,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:04,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:04,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:04,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:14:04,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:04,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:04,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-09-21 11:14:04,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:04,217 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:04,218 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:04,218 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:04,218 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:04,219 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:04,219 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:04,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:04,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:04,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:04,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:14:04,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:04,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:04,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:14:04,267 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1638919696] [2020-09-21 11:14:04,269 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:14:04,269 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-21 11:14:04,270 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568069011] [2020-09-21 11:14:04,276 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-21 11:14:04,277 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:14:04,294 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-21 11:14:04,295 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-21 11:14:04,298 INFO L87 Difference]: Start difference. First operand 199 states. Second operand 3 states. [2020-09-21 11:14:05,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:14:05,582 INFO L93 Difference]: Finished difference Result 358 states and 464 transitions. [2020-09-21 11:14:05,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-21 11:14:05,585 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 46 [2020-09-21 11:14:05,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:14:05,604 INFO L225 Difference]: With dead ends: 358 [2020-09-21 11:14:05,604 INFO L226 Difference]: Without dead ends: 193 [2020-09-21 11:14:05,610 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-21 11:14:05,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2020-09-21 11:14:05,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 156. [2020-09-21 11:14:05,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 156 states. [2020-09-21 11:14:05,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 184 transitions. [2020-09-21 11:14:05,720 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 184 transitions. Word has length 46 [2020-09-21 11:14:05,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:14:05,721 INFO L479 AbstractCegarLoop]: Abstraction has 156 states and 184 transitions. [2020-09-21 11:14:05,721 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-21 11:14:05,721 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 184 transitions. [2020-09-21 11:14:05,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-09-21 11:14:05,725 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:14:05,725 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] [2020-09-21 11:14:05,726 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-21 11:14:05,726 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:14:05,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:14:05,726 INFO L82 PathProgramCache]: Analyzing trace with hash -1620740414, now seen corresponding path program 1 times [2020-09-21 11:14:05,727 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:14:05,727 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1672245713] [2020-09-21 11:14:05,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:14:05,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:05,826 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:05,826 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:05,827 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:05,827 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:05,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-09-21 11:14:05,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:05,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 11:14:05,828 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:05,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:14:05,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-09-21 11:14:05,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 11:14:05,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:06,141 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:14:06,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:14:06,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:06,151 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:06,152 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:06,152 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:06,152 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:06,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:06,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:06,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:06,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:06,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:06,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:06,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:06,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:06,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:14:06,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:06,205 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:06,205 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:06,205 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:06,205 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:06,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:14:06,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:06,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:06,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:06,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:06,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:06,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:06,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:06,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:14:06,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:06,212 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:06,212 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:06,212 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:06,213 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:06,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:14:06,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:06,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:14:06,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:06,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:06,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:06,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:06,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:06,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:14:06,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:06,220 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:06,220 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:06,220 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:06,220 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:06,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:06,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:06,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:06,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:06,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:06,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:06,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:06,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:06,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:14:06,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:06,228 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:06,229 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:06,229 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:06,229 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:06,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:14:06,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:06,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:14:06,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:06,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:06,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:06,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:06,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:06,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-21 11:14:06,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:06,234 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:06,234 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:06,234 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:06,235 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:06,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:06,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:06,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:06,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:06,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:06,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:14:06,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:06,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:06,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-09-21 11:14:06,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:06,245 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:06,246 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:06,246 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:06,246 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:06,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:06,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:06,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:06,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:06,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:06,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:14:06,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:06,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:06,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:14:06,256 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1672245713] [2020-09-21 11:14:06,256 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:14:06,256 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-21 11:14:06,257 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504764953] [2020-09-21 11:14:06,259 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-21 11:14:06,259 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:14:06,260 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-21 11:14:06,260 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-21 11:14:06,260 INFO L87 Difference]: Start difference. First operand 156 states and 184 transitions. Second operand 4 states. [2020-09-21 11:14:06,784 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:14:07,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:14:07,941 INFO L93 Difference]: Finished difference Result 281 states and 343 transitions. [2020-09-21 11:14:07,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 11:14:07,942 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 47 [2020-09-21 11:14:07,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:14:07,946 INFO L225 Difference]: With dead ends: 281 [2020-09-21 11:14:07,946 INFO L226 Difference]: Without dead ends: 177 [2020-09-21 11:14:07,949 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-21 11:14:07,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2020-09-21 11:14:07,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 147. [2020-09-21 11:14:07,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 147 states. [2020-09-21 11:14:07,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 172 transitions. [2020-09-21 11:14:07,993 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 172 transitions. Word has length 47 [2020-09-21 11:14:07,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:14:07,993 INFO L479 AbstractCegarLoop]: Abstraction has 147 states and 172 transitions. [2020-09-21 11:14:07,994 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-21 11:14:07,994 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 172 transitions. [2020-09-21 11:14:07,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-09-21 11:14:07,996 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:14:07,996 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:14:07,997 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-21 11:14:07,997 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:14:07,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:14:07,997 INFO L82 PathProgramCache]: Analyzing trace with hash -396868600, now seen corresponding path program 1 times [2020-09-21 11:14:07,997 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:14:07,998 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1185946674] [2020-09-21 11:14:07,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:14:08,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:08,456 FATAL L256 erpolLogProxyWrapper]: Difference in size: 4 [2020-09-21 11:14:08,457 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:08,457 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:08,457 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:08,457 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-21 11:14:08,457 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:08,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 403 [2020-09-21 11:14:08,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:08,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-21 11:14:08,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:14:08,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-21 11:14:08,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:08,750 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:14:08,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:14:08,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:08,882 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:08,883 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:08,883 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:08,883 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:08,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:08,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:08,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-09-21 11:14:08,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:08,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:14:08,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:08,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:14:08,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:08,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:14:08,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:08,924 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:08,924 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:08,925 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:08,925 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:08,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:14:08,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:08,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:08,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:08,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:14:08,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:08,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:14:08,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:08,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:14:08,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:08,930 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:08,930 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:08,930 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:08,930 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:08,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:14:08,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:08,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:08,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:08,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:14:08,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:08,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:14:08,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:08,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:14:08,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:08,935 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:08,936 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:08,936 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:08,936 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:08,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:08,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:08,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:08,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:08,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:14:08,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:08,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:14:08,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:08,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:14:08,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:08,942 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:08,942 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:08,943 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:08,943 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:08,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:14:08,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:08,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:08,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:08,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:14:08,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:08,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:14:08,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:08,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-09-21 11:14:08,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:08,948 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:08,948 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:08,949 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:08,949 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:08,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:08,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:08,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:08,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:08,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:08,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:14:08,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:08,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:08,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-21 11:14:08,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:08,954 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:08,954 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:08,954 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:08,954 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:08,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:08,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:08,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:08,955 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:08,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:08,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:14:08,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:08,956 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:08,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:14:08,963 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1185946674] [2020-09-21 11:14:08,963 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:14:08,964 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-21 11:14:08,964 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161034093] [2020-09-21 11:14:08,964 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-21 11:14:08,965 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:14:08,965 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-21 11:14:08,965 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-21 11:14:08,965 INFO L87 Difference]: Start difference. First operand 147 states and 172 transitions. Second operand 4 states. [2020-09-21 11:14:09,285 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:14:11,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:14:11,305 INFO L93 Difference]: Finished difference Result 437 states and 538 transitions. [2020-09-21 11:14:11,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 11:14:11,306 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 52 [2020-09-21 11:14:11,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:14:11,311 INFO L225 Difference]: With dead ends: 437 [2020-09-21 11:14:11,312 INFO L226 Difference]: Without dead ends: 314 [2020-09-21 11:14:11,314 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-21 11:14:11,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2020-09-21 11:14:11,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 260. [2020-09-21 11:14:11,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 260 states. [2020-09-21 11:14:11,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 311 transitions. [2020-09-21 11:14:11,411 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 311 transitions. Word has length 52 [2020-09-21 11:14:11,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:14:11,412 INFO L479 AbstractCegarLoop]: Abstraction has 260 states and 311 transitions. [2020-09-21 11:14:11,412 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-21 11:14:11,412 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 311 transitions. [2020-09-21 11:14:11,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-09-21 11:14:11,415 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:14:11,415 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] [2020-09-21 11:14:11,416 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-21 11:14:11,416 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:14:11,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:14:11,416 INFO L82 PathProgramCache]: Analyzing trace with hash -1317156286, now seen corresponding path program 1 times [2020-09-21 11:14:11,416 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:14:11,417 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1597132385] [2020-09-21 11:14:11,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:14:11,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:11,953 FATAL L256 erpolLogProxyWrapper]: Difference in size: 4 [2020-09-21 11:14:11,953 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:11,953 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:11,953 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:11,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-09-21 11:14:11,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:11,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 490 [2020-09-21 11:14:11,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:11,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-21 11:14:11,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:14:11,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-09-21 11:14:11,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:12,307 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:14:12,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:14:12,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:12,370 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:12,370 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:12,370 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:12,371 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:12,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:12,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:12,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-09-21 11:14:12,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:12,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:14:12,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:12,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:14:12,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:12,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:14:12,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:12,416 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:12,416 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:12,417 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:12,417 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:12,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:14:12,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:12,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:12,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:12,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:14:12,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:12,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:14:12,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:12,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:14:12,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:12,424 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:12,425 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:12,425 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:12,425 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:12,425 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:14:12,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:12,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:12,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:12,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:14:12,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:12,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:14:12,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:12,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:14:12,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:12,431 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:12,431 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:12,431 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:12,431 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:12,432 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:12,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:12,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:12,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:12,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:14:12,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:12,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:14:12,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:12,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:14:12,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:12,438 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:12,439 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:12,439 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:12,439 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:12,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:14:12,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:12,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:14:12,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:12,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:14:12,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:12,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:14:12,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:12,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-21 11:14:12,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:12,463 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:12,464 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:12,464 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:12,464 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:12,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:14:12,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:12,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:14:12,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:12,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:14:12,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:12,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:14:12,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:12,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-09-21 11:14:12,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:12,473 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:12,473 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:12,473 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:12,473 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:12,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:12,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:12,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:14:12,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:12,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:14:12,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:12,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:14:12,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:12,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-09-21 11:14:12,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:12,492 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:12,492 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:12,492 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:12,492 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:12,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:12,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:12,493 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:12,493 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:12,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:12,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:14:12,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:12,494 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:12,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:14:12,504 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1597132385] [2020-09-21 11:14:12,504 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:14:12,504 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-21 11:14:12,505 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877836559] [2020-09-21 11:14:12,506 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-21 11:14:12,506 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:14:12,506 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-21 11:14:12,507 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-21 11:14:12,507 INFO L87 Difference]: Start difference. First operand 260 states and 311 transitions. Second operand 8 states. [2020-09-21 11:14:13,036 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:14:14,295 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:14:14,695 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:14:15,099 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:14:15,403 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:14:17,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:14:17,073 INFO L93 Difference]: Finished difference Result 807 states and 1050 transitions. [2020-09-21 11:14:17,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-21 11:14:17,074 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 57 [2020-09-21 11:14:17,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:14:17,080 INFO L225 Difference]: With dead ends: 807 [2020-09-21 11:14:17,080 INFO L226 Difference]: Without dead ends: 571 [2020-09-21 11:14:17,083 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2020-09-21 11:14:17,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 571 states. [2020-09-21 11:14:17,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 571 to 503. [2020-09-21 11:14:17,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 503 states. [2020-09-21 11:14:17,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 503 states to 503 states and 613 transitions. [2020-09-21 11:14:17,206 INFO L78 Accepts]: Start accepts. Automaton has 503 states and 613 transitions. Word has length 57 [2020-09-21 11:14:17,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:14:17,207 INFO L479 AbstractCegarLoop]: Abstraction has 503 states and 613 transitions. [2020-09-21 11:14:17,207 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-21 11:14:17,207 INFO L276 IsEmpty]: Start isEmpty. Operand 503 states and 613 transitions. [2020-09-21 11:14:17,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-09-21 11:14:17,212 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:14:17,212 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:14:17,212 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-21 11:14:17,212 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:14:17,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:14:17,213 INFO L82 PathProgramCache]: Analyzing trace with hash 143686056, now seen corresponding path program 1 times [2020-09-21 11:14:17,213 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:14:17,213 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1333352192] [2020-09-21 11:14:17,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:14:17,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:17,679 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:17,679 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:17,680 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:17,680 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:17,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 94 [2020-09-21 11:14:17,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:17,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 422 [2020-09-21 11:14:17,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:17,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-21 11:14:17,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:14:17,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-21 11:14:17,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:18,132 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:14:18,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:14:18,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:18,202 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:18,202 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:18,202 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:18,203 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:18,203 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:18,204 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:18,204 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-09-21 11:14:18,204 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:18,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:14:18,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:18,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:14:18,206 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:18,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:14:18,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:18,248 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:18,249 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:18,249 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:18,249 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:18,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:14:18,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:18,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:14:18,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:18,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:14:18,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:18,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:14:18,252 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:18,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:14:18,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:18,256 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:18,256 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:18,257 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:18,257 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:18,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:14:18,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:18,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:14:18,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:18,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:14:18,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:18,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:14:18,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:18,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:14:18,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:18,264 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:18,264 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:18,264 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:18,265 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:18,265 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:18,265 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:18,266 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:14:18,266 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:18,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:14:18,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:18,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:14:18,267 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:18,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:14:18,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:18,272 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:18,272 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:18,272 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:18,273 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:18,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:14:18,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:18,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:14:18,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:18,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:14:18,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:18,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:14:18,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:18,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-21 11:14:18,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:18,300 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:18,300 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:18,301 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:18,301 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:18,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:18,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:18,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 11:14:18,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:18,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:14:18,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:14:18,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-21 11:14:18,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:18,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 11:14:18,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:18,388 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:18,388 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:18,388 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:18,391 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:18,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:14:18,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:18,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:14:18,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:18,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:14:18,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:18,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:14:18,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:18,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-09-21 11:14:18,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:18,404 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:18,404 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:18,404 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:18,404 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:18,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:18,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:18,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 11:14:18,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:18,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:14:18,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:18,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:14:18,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:18,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-09-21 11:14:18,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:18,434 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:18,434 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:18,434 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:18,435 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:18,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:18,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:18,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:18,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:18,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:18,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:14:18,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:18,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:18,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:14:18,454 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1333352192] [2020-09-21 11:14:18,455 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:14:18,455 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-21 11:14:18,455 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073730182] [2020-09-21 11:14:18,458 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-21 11:14:18,458 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:14:18,459 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-21 11:14:18,460 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-09-21 11:14:18,460 INFO L87 Difference]: Start difference. First operand 503 states and 613 transitions. Second operand 11 states. [2020-09-21 11:14:19,051 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:14:19,790 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:14:20,889 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:14:21,461 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:14:21,783 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:14:22,217 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:14:22,638 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:14:23,494 WARN L193 SmtUtils]: Spent 557.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 187 [2020-09-21 11:14:26,089 WARN L193 SmtUtils]: Spent 554.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 189 [2020-09-21 11:14:28,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:14:28,024 INFO L93 Difference]: Finished difference Result 1573 states and 2090 transitions. [2020-09-21 11:14:28,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-09-21 11:14:28,026 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 61 [2020-09-21 11:14:28,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:14:28,035 INFO L225 Difference]: With dead ends: 1573 [2020-09-21 11:14:28,036 INFO L226 Difference]: Without dead ends: 1307 [2020-09-21 11:14:28,038 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 203 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=201, Invalid=729, Unknown=0, NotChecked=0, Total=930 [2020-09-21 11:14:28,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1307 states. [2020-09-21 11:14:28,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1307 to 1109. [2020-09-21 11:14:28,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1109 states. [2020-09-21 11:14:28,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1109 states to 1109 states and 1353 transitions. [2020-09-21 11:14:28,304 INFO L78 Accepts]: Start accepts. Automaton has 1109 states and 1353 transitions. Word has length 61 [2020-09-21 11:14:28,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:14:28,304 INFO L479 AbstractCegarLoop]: Abstraction has 1109 states and 1353 transitions. [2020-09-21 11:14:28,304 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-21 11:14:28,304 INFO L276 IsEmpty]: Start isEmpty. Operand 1109 states and 1353 transitions. [2020-09-21 11:14:28,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-09-21 11:14:28,308 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:14:28,308 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:14:28,308 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-21 11:14:28,308 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:14:28,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:14:28,309 INFO L82 PathProgramCache]: Analyzing trace with hash -1811637144, now seen corresponding path program 1 times [2020-09-21 11:14:28,309 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:14:28,309 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2122908879] [2020-09-21 11:14:28,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:14:28,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:28,667 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:28,667 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:28,668 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:28,668 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:28,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 94 [2020-09-21 11:14:28,669 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:28,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 315 [2020-09-21 11:14:28,669 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:28,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-21 11:14:28,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:14:28,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-21 11:14:28,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:29,044 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:14:29,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:14:29,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:29,120 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:29,121 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:29,121 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:29,121 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:29,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:29,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:29,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-09-21 11:14:29,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:29,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:14:29,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:29,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:14:29,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:29,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:14:29,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:29,161 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:29,162 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:29,162 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:29,162 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:29,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:14:29,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:29,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:29,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:29,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:14:29,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:29,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:14:29,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:29,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:14:29,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:29,168 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:29,169 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:29,169 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:29,169 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:29,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:14:29,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:29,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:14:29,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:29,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:14:29,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:29,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:14:29,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:29,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:14:29,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:29,176 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:29,177 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:29,177 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:29,177 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:29,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:29,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:29,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:14:29,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:29,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:14:29,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:29,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:14:29,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:29,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:14:29,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:29,184 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:29,185 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:29,185 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:29,186 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:29,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:14:29,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:29,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:14:29,187 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:29,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:14:29,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:29,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:14:29,188 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:29,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-21 11:14:29,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:29,208 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:29,208 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:29,209 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:29,209 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:29,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:14:29,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:29,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:14:29,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:29,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:14:29,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:29,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:14:29,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:29,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-21 11:14:29,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:29,228 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:29,229 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:29,229 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:29,229 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:29,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:29,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:29,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:29,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:29,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:29,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:14:29,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:29,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:29,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-09-21 11:14:29,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:29,236 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:29,236 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:29,236 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:29,236 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:29,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:29,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:29,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:29,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:29,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:29,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:14:29,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:29,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:29,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-09-21 11:14:29,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:29,240 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:29,241 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:29,241 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:29,242 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:29,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:29,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:29,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:29,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:29,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:29,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:14:29,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:29,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:29,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:14:29,258 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2122908879] [2020-09-21 11:14:29,258 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:14:29,258 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-21 11:14:29,259 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187143752] [2020-09-21 11:14:29,259 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-21 11:14:29,259 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:14:29,260 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-21 11:14:29,260 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-21 11:14:29,260 INFO L87 Difference]: Start difference. First operand 1109 states and 1353 transitions. Second operand 6 states. [2020-09-21 11:14:29,708 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:14:32,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:14:32,219 INFO L93 Difference]: Finished difference Result 2679 states and 3423 transitions. [2020-09-21 11:14:32,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-21 11:14:32,219 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 61 [2020-09-21 11:14:32,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:14:32,230 INFO L225 Difference]: With dead ends: 2679 [2020-09-21 11:14:32,231 INFO L226 Difference]: Without dead ends: 1594 [2020-09-21 11:14:32,235 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-21 11:14:32,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1594 states. [2020-09-21 11:14:32,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1594 to 1489. [2020-09-21 11:14:32,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1489 states. [2020-09-21 11:14:32,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1489 states to 1489 states and 1793 transitions. [2020-09-21 11:14:32,505 INFO L78 Accepts]: Start accepts. Automaton has 1489 states and 1793 transitions. Word has length 61 [2020-09-21 11:14:32,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:14:32,506 INFO L479 AbstractCegarLoop]: Abstraction has 1489 states and 1793 transitions. [2020-09-21 11:14:32,506 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-21 11:14:32,506 INFO L276 IsEmpty]: Start isEmpty. Operand 1489 states and 1793 transitions. [2020-09-21 11:14:32,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2020-09-21 11:14:32,510 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:14:32,511 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:14:32,511 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-21 11:14:32,511 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:14:32,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:14:32,512 INFO L82 PathProgramCache]: Analyzing trace with hash 2053206357, now seen corresponding path program 1 times [2020-09-21 11:14:32,512 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:14:32,512 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [454361721] [2020-09-21 11:14:32,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:14:32,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:32,564 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:32,564 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:32,564 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:32,565 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:32,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 169 [2020-09-21 11:14:32,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:32,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:14:32,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:32,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:14:32,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 56 [2020-09-21 11:14:32,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-21 11:14:32,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:32,857 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:14:32,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:14:32,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:32,865 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:32,865 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:32,865 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:32,865 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:32,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:32,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:32,866 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:32,866 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:32,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:32,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:32,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:32,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:32,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:14:32,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:32,892 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:32,893 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:32,893 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:32,893 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:32,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:14:32,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:32,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:32,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:32,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:32,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:32,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:32,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:32,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:14:32,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:32,897 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:32,897 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:32,897 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:32,897 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:32,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:14:32,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:32,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:32,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:32,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:32,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:32,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:32,899 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:32,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:14:32,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:32,901 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:32,901 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:32,901 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:32,902 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:32,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:32,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:32,902 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:32,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:32,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:32,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:32,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:32,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:32,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:14:32,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:32,906 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:32,906 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:32,906 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:32,907 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:32,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:14:32,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:32,907 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:32,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:32,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:32,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:32,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:32,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:32,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-21 11:14:32,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:32,921 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:32,921 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:32,921 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:32,922 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:32,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:14:32,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:32,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:32,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:32,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:14:32,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:32,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 11:14:32,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:32,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-09-21 11:14:32,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:32,948 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:32,948 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:32,948 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:32,948 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:32,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 69 [2020-09-21 11:14:32,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:32,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 11:14:32,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:32,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:14:32,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 32 [2020-09-21 11:14:32,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:14:32,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:32,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:14:32,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:32,974 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:32,974 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:32,974 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:32,975 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:32,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-09-21 11:14:32,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:32,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 11:14:32,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:32,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:14:32,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-09-21 11:14:32,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:14:32,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:32,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:14:32,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:33,000 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:33,001 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:33,001 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:33,001 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:33,001 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-21 11:14:33,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:33,002 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-21 11:14:33,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:33,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:14:33,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-09-21 11:14:33,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:14:33,003 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:33,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:14:33,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:33,026 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:33,026 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:33,026 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:33,026 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:33,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-21 11:14:33,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:33,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-21 11:14:33,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:33,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:14:33,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-09-21 11:14:33,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:14:33,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:33,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:14:33,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:33,086 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:33,086 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:33,086 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:33,087 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:33,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:14:33,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:33,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 11:14:33,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:33,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:14:33,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:33,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-21 11:14:33,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:33,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:14:33,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:33,129 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:33,129 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:33,129 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:33,130 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:33,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:14:33,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:33,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:33,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:33,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:33,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:33,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:33,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:33,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 11:14:33,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:33,138 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:33,138 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:33,139 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:33,139 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:33,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:33,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:33,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:33,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:33,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:33,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:14:33,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:33,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:33,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-09-21 11:14:33,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:33,150 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:33,151 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:33,151 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:33,151 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:33,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-21 11:14:33,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:33,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:33,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:33,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:33,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-21 11:14:33,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:33,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:33,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:14:33,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:33,158 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:33,158 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:33,159 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:33,159 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:33,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:33,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:33,160 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:33,160 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:33,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:33,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:33,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:33,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:33,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-09-21 11:14:33,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:33,187 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:33,187 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:33,188 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:33,188 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:33,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:33,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:33,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:33,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:33,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:33,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:14:33,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:33,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:33,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-21 11:14:33,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:33,194 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:33,194 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:33,194 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:33,194 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:33,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:33,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:33,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:33,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:33,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:33,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:14:33,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:33,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:33,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-09-21 11:14:33,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:33,202 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:33,202 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:33,203 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:33,203 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:33,203 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:33,204 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:33,204 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:33,204 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:33,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:33,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:14:33,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:33,205 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:33,234 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-09-21 11:14:33,235 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [454361721] [2020-09-21 11:14:33,235 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:14:33,235 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-21 11:14:33,236 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126761395] [2020-09-21 11:14:33,237 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-21 11:14:33,237 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:14:33,238 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-21 11:14:33,243 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2020-09-21 11:14:33,244 INFO L87 Difference]: Start difference. First operand 1489 states and 1793 transitions. Second operand 12 states. [2020-09-21 11:14:34,417 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:14:35,031 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:14:35,325 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 11:14:35,642 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:14:35,954 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 11:14:38,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:14:38,139 INFO L93 Difference]: Finished difference Result 2578 states and 3207 transitions. [2020-09-21 11:14:38,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-21 11:14:38,140 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 118 [2020-09-21 11:14:38,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:14:38,147 INFO L225 Difference]: With dead ends: 2578 [2020-09-21 11:14:38,148 INFO L226 Difference]: Without dead ends: 1113 [2020-09-21 11:14:38,153 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=121, Invalid=385, Unknown=0, NotChecked=0, Total=506 [2020-09-21 11:14:38,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1113 states. [2020-09-21 11:14:38,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1113 to 983. [2020-09-21 11:14:38,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 983 states. [2020-09-21 11:14:38,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 983 states to 983 states and 1159 transitions. [2020-09-21 11:14:38,382 INFO L78 Accepts]: Start accepts. Automaton has 983 states and 1159 transitions. Word has length 118 [2020-09-21 11:14:38,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:14:38,383 INFO L479 AbstractCegarLoop]: Abstraction has 983 states and 1159 transitions. [2020-09-21 11:14:38,383 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-21 11:14:38,383 INFO L276 IsEmpty]: Start isEmpty. Operand 983 states and 1159 transitions. [2020-09-21 11:14:38,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2020-09-21 11:14:38,425 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:14:38,425 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:14:38,425 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-21 11:14:38,426 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:14:38,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:14:38,427 INFO L82 PathProgramCache]: Analyzing trace with hash 545809936, now seen corresponding path program 1 times [2020-09-21 11:14:38,427 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:14:38,428 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [706565315] [2020-09-21 11:14:38,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:14:38,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:38,492 FATAL L256 erpolLogProxyWrapper]: Difference in size: 4 [2020-09-21 11:14:38,492 FATAL L256 erpolLogProxyWrapper]: Difference in depth: -54 [2020-09-21 11:14:38,492 FATAL L256 erpolLogProxyWrapper]: Difference in width: 54 [2020-09-21 11:14:38,492 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:38,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 190 [2020-09-21 11:14:38,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:38,493 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-21 11:14:38,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:38,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:14:38,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-21 11:14:38,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:14:38,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:38,758 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:14:38,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:14:38,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:38,768 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:38,768 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:38,768 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:38,769 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:38,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:38,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:38,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:38,769 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:38,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:38,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:38,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:38,770 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:38,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:14:38,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:38,805 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:38,806 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:38,806 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:38,806 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:38,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:14:38,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:38,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:14:38,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:38,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:38,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:38,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:38,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:38,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:14:38,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:38,813 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:38,813 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:38,813 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:38,814 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:38,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:14:38,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:38,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:38,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:38,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:38,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:38,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:38,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:38,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:14:38,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:38,818 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:38,818 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:38,818 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:38,819 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:38,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:38,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:38,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:38,820 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:38,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:38,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:38,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:38,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:38,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:14:38,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:38,823 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:38,823 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:38,823 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:38,824 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:38,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:14:38,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:38,824 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:38,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:38,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:38,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:38,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:38,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:38,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-21 11:14:38,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:38,849 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:38,849 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:38,849 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:38,850 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:38,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 69 [2020-09-21 11:14:38,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:38,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 11:14:38,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:38,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:14:38,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-09-21 11:14:38,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:14:38,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:38,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:14:38,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:38,878 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:38,878 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:38,878 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:38,879 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:38,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-09-21 11:14:38,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:38,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 11:14:38,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:38,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:14:38,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-09-21 11:14:38,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:14:38,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:38,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:14:38,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:38,897 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:38,897 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:38,897 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:38,897 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:38,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-21 11:14:38,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:38,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 11:14:38,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:38,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:14:38,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-21 11:14:38,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:14:38,899 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:38,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:14:38,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:38,912 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:38,913 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:38,913 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:38,913 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:38,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-21 11:14:38,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:38,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 11:14:38,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:38,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:14:38,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-21 11:14:38,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:14:38,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:38,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:14:38,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:38,931 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:38,931 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:38,932 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:38,932 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:38,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:14:38,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:38,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 11:14:38,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:38,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:14:38,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-21 11:14:38,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:14:38,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:38,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:14:38,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:38,957 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:38,957 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:38,958 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:38,958 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:38,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:14:38,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:38,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:14:38,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:38,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-21 11:14:38,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:38,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:14:38,960 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:38,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 11:14:38,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:38,974 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:38,974 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:38,974 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:38,975 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:38,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:38,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:38,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:38,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:38,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:38,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:14:38,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:38,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:38,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-09-21 11:14:38,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:38,985 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:38,986 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:38,986 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:38,986 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:38,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-21 11:14:38,987 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:38,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:14:38,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:38,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:38,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-21 11:14:38,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:38,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:38,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:14:38,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:38,991 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:38,991 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:38,992 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:38,992 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:38,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:38,992 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:38,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:38,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:38,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:38,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:38,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:38,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:39,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-09-21 11:14:39,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:39,010 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:39,010 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:39,010 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:39,010 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:39,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:39,011 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:39,011 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:39,011 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:39,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:39,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:14:39,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:39,012 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:39,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-09-21 11:14:39,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:39,016 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:39,017 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:39,017 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:39,017 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:39,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-21 11:14:39,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:39,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:39,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:39,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:39,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-09-21 11:14:39,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:39,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:39,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:14:39,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:39,026 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:39,026 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:39,027 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:39,027 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:39,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-21 11:14:39,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:39,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:14:39,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:39,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:39,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:39,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:39,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:39,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:14:39,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:39,032 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:39,032 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:39,032 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:39,032 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:39,033 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:39,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:39,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:39,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:39,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:39,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:39,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:39,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:39,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-09-21 11:14:39,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:39,037 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:39,037 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:39,038 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:39,038 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:39,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:39,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:39,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:39,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:39,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:39,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:39,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:39,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:39,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2020-09-21 11:14:39,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:39,044 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:39,044 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:39,044 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:39,045 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:39,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:39,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:39,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:14:39,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:39,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:39,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:14:39,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:39,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:39,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-21 11:14:39,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:39,050 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:39,050 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:39,051 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:39,051 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:39,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:39,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:39,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:39,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:39,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:39,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:14:39,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:39,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:39,073 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-09-21 11:14:39,073 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [706565315] [2020-09-21 11:14:39,073 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:14:39,073 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-21 11:14:39,075 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944557600] [2020-09-21 11:14:39,076 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-21 11:14:39,076 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:14:39,076 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-21 11:14:39,077 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-09-21 11:14:39,077 INFO L87 Difference]: Start difference. First operand 983 states and 1159 transitions. Second operand 9 states. [2020-09-21 11:14:40,304 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:14:40,629 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:14:40,927 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:14:42,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:14:42,254 INFO L93 Difference]: Finished difference Result 1918 states and 2343 transitions. [2020-09-21 11:14:42,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-21 11:14:42,255 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 133 [2020-09-21 11:14:42,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:14:42,260 INFO L225 Difference]: With dead ends: 1918 [2020-09-21 11:14:42,261 INFO L226 Difference]: Without dead ends: 959 [2020-09-21 11:14:42,264 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2020-09-21 11:14:42,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 959 states. [2020-09-21 11:14:42,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 959 to 896. [2020-09-21 11:14:42,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 896 states. [2020-09-21 11:14:42,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 896 states to 896 states and 1045 transitions. [2020-09-21 11:14:42,410 INFO L78 Accepts]: Start accepts. Automaton has 896 states and 1045 transitions. Word has length 133 [2020-09-21 11:14:42,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:14:42,410 INFO L479 AbstractCegarLoop]: Abstraction has 896 states and 1045 transitions. [2020-09-21 11:14:42,410 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-21 11:14:42,410 INFO L276 IsEmpty]: Start isEmpty. Operand 896 states and 1045 transitions. [2020-09-21 11:14:42,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2020-09-21 11:14:42,413 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:14:42,413 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:14:42,413 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-21 11:14:42,413 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:14:42,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:14:42,414 INFO L82 PathProgramCache]: Analyzing trace with hash -1621468459, now seen corresponding path program 1 times [2020-09-21 11:14:42,414 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:14:42,414 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [416769828] [2020-09-21 11:14:42,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:14:42,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:42,916 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:42,916 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:42,916 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:42,917 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:42,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-09-21 11:14:42,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:42,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 444 [2020-09-21 11:14:42,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:42,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-21 11:14:42,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:14:42,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 158 [2020-09-21 11:14:42,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:43,250 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:14:43,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:14:43,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:43,313 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:43,314 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:43,314 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:43,314 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:43,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:43,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:43,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-09-21 11:14:43,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:43,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:14:43,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:43,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:14:43,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:43,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:14:43,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:43,347 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:43,347 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:43,348 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:43,348 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:43,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:14:43,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:43,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:43,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:43,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:14:43,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:43,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:14:43,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:43,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:14:43,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:43,352 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:43,353 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:43,353 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:43,353 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:43,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:14:43,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:43,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:43,354 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:43,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:14:43,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:43,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:14:43,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:43,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:14:43,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:43,358 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:43,359 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:43,359 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:43,359 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:43,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:43,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:43,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:14:43,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:43,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:14:43,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:43,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:14:43,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:43,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:14:43,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:43,369 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:43,369 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:43,370 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:43,370 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:43,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:14:43,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:43,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:14:43,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:43,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:14:43,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:43,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:14:43,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:43,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-21 11:14:43,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:43,384 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:43,384 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:43,385 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:43,385 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:43,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:43,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:43,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:43,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:43,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:14:43,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:43,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:14:43,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:43,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 11:14:43,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:43,407 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:43,407 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:43,407 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:43,408 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:43,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 69 [2020-09-21 11:14:43,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:43,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:43,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:43,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:14:43,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:43,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-09-21 11:14:43,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:43,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:14:43,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:43,429 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:43,429 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:43,429 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:43,429 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:43,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-09-21 11:14:43,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:43,430 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:43,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:43,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:43,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:43,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:43,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:43,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:14:43,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:43,444 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:43,445 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:43,445 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:43,445 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:43,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-21 11:14:43,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:43,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:43,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:43,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:43,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:43,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:43,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:43,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:14:43,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:43,453 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:43,453 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:43,454 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:43,454 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:43,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-21 11:14:43,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:43,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:43,455 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:43,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:43,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:43,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:43,456 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:43,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:14:43,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:43,461 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:43,461 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:43,461 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:43,461 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:43,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:14:43,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:43,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:43,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:43,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:43,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:43,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:43,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:43,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:14:43,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:43,468 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:43,468 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:43,469 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:43,469 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:43,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:14:43,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:43,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:43,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:43,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:43,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:43,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:43,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:43,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 11:14:43,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:43,474 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:43,474 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:43,474 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:43,475 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:43,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:43,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:43,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:43,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:43,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:43,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:43,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:43,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:43,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-09-21 11:14:43,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:43,480 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:43,481 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:43,481 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:43,481 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:43,481 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-21 11:14:43,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:43,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:14:43,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:43,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:43,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:43,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:43,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:43,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:14:43,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:43,485 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:43,485 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:43,486 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:43,486 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:43,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:43,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:43,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:14:43,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:43,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:43,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:43,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:43,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:43,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-09-21 11:14:43,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:43,492 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:43,492 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:43,492 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:43,492 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:43,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:43,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:43,493 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:43,493 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:43,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:14:43,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:43,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:14:43,494 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:43,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-09-21 11:14:43,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:43,509 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:43,510 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:43,510 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:43,510 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:43,510 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-21 11:14:43,510 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:43,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-21 11:14:43,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:43,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-21 11:14:43,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-21 11:14:43,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-21 11:14:43,511 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:43,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:14:43,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:43,560 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:43,560 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:43,560 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:43,560 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:43,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-21 11:14:43,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:43,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 11:14:43,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:43,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:14:43,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:43,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-21 11:14:43,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:43,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:14:43,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:43,592 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:43,592 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:43,592 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:43,594 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:43,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:43,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:43,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:14:43,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:43,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-21 11:14:43,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:43,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:14:43,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:43,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-09-21 11:14:43,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:43,613 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:43,613 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:43,613 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:43,614 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:43,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:43,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:43,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:43,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:43,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:14:43,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:43,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:14:43,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:43,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-09-21 11:14:43,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:43,620 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:43,620 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:43,620 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:43,620 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:43,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:43,621 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:43,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:43,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:43,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:43,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:14:43,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:43,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:43,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-21 11:14:43,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:43,625 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:43,625 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:43,625 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:43,625 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:43,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:43,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:43,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:14:43,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:43,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:43,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:14:43,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:43,627 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:43,650 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-09-21 11:14:43,651 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [416769828] [2020-09-21 11:14:43,651 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:14:43,651 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-09-21 11:14:43,651 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925031302] [2020-09-21 11:14:43,652 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-21 11:14:43,652 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:14:43,652 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-21 11:14:43,652 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2020-09-21 11:14:43,652 INFO L87 Difference]: Start difference. First operand 896 states and 1045 transitions. Second operand 13 states. [2020-09-21 11:14:44,448 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:14:45,400 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:14:47,996 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:14:48,339 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:14:48,686 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:14:48,987 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 11:14:49,313 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:14:49,629 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 11:14:50,204 WARN L193 SmtUtils]: Spent 547.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 188 [2020-09-21 11:14:50,515 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 11:14:50,863 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 11:14:51,180 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 11:14:52,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:14:52,657 INFO L93 Difference]: Finished difference Result 2755 states and 3296 transitions. [2020-09-21 11:14:52,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-09-21 11:14:52,658 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 137 [2020-09-21 11:14:52,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:14:52,668 INFO L225 Difference]: With dead ends: 2755 [2020-09-21 11:14:52,668 INFO L226 Difference]: Without dead ends: 1883 [2020-09-21 11:14:52,671 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 200 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=214, Invalid=842, Unknown=0, NotChecked=0, Total=1056 [2020-09-21 11:14:52,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1883 states. [2020-09-21 11:14:52,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1883 to 1770. [2020-09-21 11:14:52,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1770 states. [2020-09-21 11:14:52,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1770 states to 1770 states and 2045 transitions. [2020-09-21 11:14:52,951 INFO L78 Accepts]: Start accepts. Automaton has 1770 states and 2045 transitions. Word has length 137 [2020-09-21 11:14:52,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:14:52,952 INFO L479 AbstractCegarLoop]: Abstraction has 1770 states and 2045 transitions. [2020-09-21 11:14:52,952 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-21 11:14:52,952 INFO L276 IsEmpty]: Start isEmpty. Operand 1770 states and 2045 transitions. [2020-09-21 11:14:52,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2020-09-21 11:14:52,955 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:14:52,955 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:14:52,955 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-21 11:14:52,956 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:14:52,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:14:52,956 INFO L82 PathProgramCache]: Analyzing trace with hash -671261639, now seen corresponding path program 1 times [2020-09-21 11:14:52,956 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:14:52,956 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [567017836] [2020-09-21 11:14:52,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:14:53,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:53,011 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:53,011 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:53,011 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:53,011 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:53,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 202 [2020-09-21 11:14:53,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:53,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 11:14:53,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:53,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:14:53,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 173 [2020-09-21 11:14:53,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-09-21 11:14:53,013 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:53,334 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:14:53,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:14:53,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:53,344 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:53,344 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:53,344 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:53,344 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:53,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:53,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:53,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:53,345 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:53,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:53,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:53,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:53,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:53,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:14:53,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:53,370 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:53,370 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:53,371 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:53,371 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:53,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:14:53,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:53,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:53,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:53,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:53,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:53,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:53,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:53,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:14:53,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:53,374 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:53,374 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:53,374 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:53,375 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:53,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:14:53,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:53,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:14:53,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:53,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:53,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:53,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:53,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:53,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:14:53,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:53,378 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:53,378 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:53,378 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:53,379 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:53,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:53,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:53,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:14:53,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:53,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:53,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:53,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:53,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:53,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:14:53,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:53,383 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:53,383 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:53,383 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:53,383 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:53,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:14:53,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:53,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:14:53,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:53,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:53,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:53,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:53,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:53,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-21 11:14:53,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:53,405 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:53,406 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:53,406 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:53,406 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:53,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:53,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:53,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:53,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:53,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:53,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:53,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:53,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:53,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-21 11:14:53,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:53,420 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:53,420 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:53,420 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:53,420 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:53,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:53,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:53,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:14:53,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:53,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:53,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:53,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:53,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:53,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-09-21 11:14:53,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:53,441 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:53,441 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:53,441 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:53,441 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:53,441 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 69 [2020-09-21 11:14:53,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:53,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:53,442 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:53,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:53,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:53,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:53,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:53,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:14:53,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:53,460 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:53,460 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:53,460 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:53,461 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:53,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-09-21 11:14:53,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:53,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:14:53,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:53,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:53,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:53,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:53,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:53,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:14:53,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:53,474 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:53,474 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:53,475 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:53,475 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:53,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-21 11:14:53,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:53,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:14:53,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:53,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:53,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:53,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:53,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:53,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:14:53,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:53,484 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:53,484 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:53,484 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:53,484 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:53,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-21 11:14:53,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:53,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:53,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:53,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:53,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:53,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:53,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:53,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:14:53,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:53,491 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:53,491 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:53,491 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:53,491 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:53,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:14:53,492 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:53,492 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:14:53,492 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:53,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:53,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:53,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:53,493 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:53,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:14:53,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:53,496 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:53,496 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:53,496 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:53,497 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:53,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:14:53,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:53,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:53,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:53,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:53,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:53,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:53,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:53,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 11:14:53,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:53,504 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:53,504 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:53,504 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:53,505 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:53,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:53,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:53,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:14:53,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:53,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:53,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:53,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:53,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:53,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-09-21 11:14:53,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:53,510 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:53,510 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:53,510 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:53,511 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:53,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-21 11:14:53,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:53,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:14:53,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:53,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:53,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:53,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:53,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:53,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:14:53,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:53,515 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:53,515 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:53,515 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:53,515 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:53,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:53,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:53,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:14:53,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:53,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:53,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:53,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:53,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:53,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-21 11:14:53,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:53,520 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:53,520 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:53,521 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:53,521 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:53,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:53,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:53,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:14:53,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:53,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:53,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:53,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:53,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:53,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-09-21 11:14:53,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:53,528 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:53,528 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:53,528 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:53,529 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:53,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-21 11:14:53,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:53,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:53,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:53,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:14:53,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:53,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-21 11:14:53,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:53,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:14:53,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:53,536 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:53,536 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:53,537 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:53,537 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:53,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-21 11:14:53,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:53,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:14:53,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:53,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:53,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:53,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:53,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:53,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:14:53,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:53,541 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:53,541 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:53,542 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:53,542 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:53,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:53,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:53,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:14:53,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:53,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:53,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:53,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:53,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:53,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-09-21 11:14:53,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:53,550 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:53,551 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:53,551 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:53,551 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:53,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:53,551 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:53,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:14:53,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:53,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:14:53,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:53,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:14:53,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:53,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-21 11:14:53,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:53,557 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:53,557 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:53,557 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:53,557 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:53,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:53,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:53,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:53,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:53,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:14:53,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:53,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:14:53,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:53,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-09-21 11:14:53,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:53,565 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:53,565 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:53,565 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:53,565 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:53,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:53,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:53,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:14:53,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:53,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:14:53,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:53,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:14:53,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:53,604 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-09-21 11:14:53,604 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [567017836] [2020-09-21 11:14:53,604 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:14:53,605 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-09-21 11:14:53,605 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931442435] [2020-09-21 11:14:53,605 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-21 11:14:53,606 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:14:53,606 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-21 11:14:53,608 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2020-09-21 11:14:53,609 INFO L87 Difference]: Start difference. First operand 1770 states and 2045 transitions. Second operand 11 states. [2020-09-21 11:14:54,126 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 187