/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=1000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLEST --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_spec5_product61.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 19:16:06,365 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 19:16:06,369 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 19:16:06,396 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 19:16:06,396 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 19:16:06,398 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 19:16:06,399 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 19:16:06,404 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 19:16:06,408 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 19:16:06,409 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 19:16:06,410 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 19:16:06,416 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 19:16:06,416 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 19:16:06,419 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 19:16:06,420 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 19:16:06,421 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 19:16:06,422 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 19:16:06,423 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 19:16:06,424 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 19:16:06,426 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 19:16:06,428 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 19:16:06,429 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 19:16:06,430 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 19:16:06,431 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 19:16:06,433 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 19:16:06,433 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 19:16:06,434 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 19:16:06,435 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 19:16:06,435 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 19:16:06,436 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 19:16:06,436 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 19:16:06,437 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 19:16:06,438 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 19:16:06,439 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 19:16:06,440 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 19:16:06,440 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 19:16:06,441 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 19:16:06,441 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 19:16:06,442 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 19:16:06,443 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 19:16:06,443 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 19:16:06,444 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-24 19:16:06,471 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 19:16:06,472 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 19:16:06,473 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 19:16:06,473 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 19:16:06,473 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 19:16:06,474 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 19:16:06,474 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 19:16:06,474 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 19:16:06,474 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 19:16:06,474 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 19:16:06,475 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 19:16:06,475 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 19:16:06,475 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 19:16:06,475 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 19:16:06,475 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 19:16:06,476 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 19:16:06,476 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 19:16:06,476 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 19:16:06,476 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 19:16:06,476 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 19:16:06,477 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 19:16:06,477 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 19:16:06,477 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 19:16:06,477 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 19:16:06,478 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 19:16:06,478 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 19:16:06,478 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 19:16:06,478 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 19:16:06,478 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 19:16:06,479 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; [2020-09-24 19:16:06,998 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 19:16:07,016 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 19:16:07,021 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 19:16:07,023 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 19:16:07,024 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 19:16:07,025 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product61.cil.c [2020-09-24 19:16:07,121 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b5273bab9/dfccf68596084483a2e098942610d1b9/FLAG824fa1d1d [2020-09-24 19:16:07,772 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 19:16:07,773 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec5_product61.cil.c [2020-09-24 19:16:07,789 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b5273bab9/dfccf68596084483a2e098942610d1b9/FLAG824fa1d1d [2020-09-24 19:16:08,064 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b5273bab9/dfccf68596084483a2e098942610d1b9 [2020-09-24 19:16:08,078 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 19:16:08,086 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 19:16:08,088 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 19:16:08,088 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 19:16:08,093 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 19:16:08,094 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 07:16:08" (1/1) ... [2020-09-24 19:16:08,099 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@191a9bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:16:08, skipping insertion in model container [2020-09-24 19:16:08,099 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 07:16:08" (1/1) ... [2020-09-24 19:16:08,109 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 19:16:08,187 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 19:16:08,701 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 19:16:08,724 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 19:16:08,809 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 19:16:08,854 INFO L208 MainTranslator]: Completed translation [2020-09-24 19:16:08,854 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:16:08 WrapperNode [2020-09-24 19:16:08,854 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 19:16:08,855 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 19:16:08,855 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 19:16:08,856 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 19:16:08,872 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:16:08" (1/1) ... [2020-09-24 19:16:08,872 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:16:08" (1/1) ... [2020-09-24 19:16:08,895 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:16:08" (1/1) ... [2020-09-24 19:16:08,895 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:16:08" (1/1) ... [2020-09-24 19:16:08,951 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:16:08" (1/1) ... [2020-09-24 19:16:08,971 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:16:08" (1/1) ... [2020-09-24 19:16:08,976 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:16:08" (1/1) ... [2020-09-24 19:16:08,984 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 19:16:08,985 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 19:16:08,985 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 19:16:08,985 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 19:16:08,987 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:16:08" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 19:16:09,086 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 19:16:09,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 19:16:09,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 19:16:09,087 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 19:16:09,087 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 19:16:09,088 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 19:16:09,088 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 19:16:09,088 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-09-24 19:16:09,089 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 19:16:09,090 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-09-24 19:16:09,090 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 19:16:09,090 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 19:16:09,090 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 19:16:09,091 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 19:16:09,091 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 19:16:09,092 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 19:16:09,092 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-24 19:16:09,093 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 19:16:09,093 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 19:16:09,093 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 19:16:09,093 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 19:16:09,093 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 19:16:09,094 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 19:16:09,094 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 19:16:09,094 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-24 19:16:09,095 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 19:16:09,095 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 19:16:09,096 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 19:16:09,096 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 19:16:09,096 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 19:16:09,096 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 19:16:09,096 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2020-09-24 19:16:09,097 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2020-09-24 19:16:09,097 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2020-09-24 19:16:09,097 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 19:16:09,097 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 19:16:09,097 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 19:16:09,097 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 19:16:09,098 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 19:16:09,098 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 19:16:09,098 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 19:16:09,098 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 19:16:09,098 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 19:16:09,098 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 19:16:09,099 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 19:16:09,099 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 19:16:09,099 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 19:16:09,099 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 19:16:09,099 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 19:16:09,100 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 19:16:09,100 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 19:16:09,100 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 19:16:09,100 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 19:16:09,101 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 19:16:09,101 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 19:16:09,101 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 19:16:09,101 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-24 19:16:09,101 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 19:16:09,102 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 19:16:09,102 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 19:16:09,102 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 19:16:09,102 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2020-09-24 19:16:09,102 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2020-09-24 19:16:09,102 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 19:16:09,103 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 19:16:09,103 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 19:16:09,103 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 19:16:09,103 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-24 19:16:09,103 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-09-24 19:16:09,103 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 19:16:09,104 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-09-24 19:16:09,105 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 19:16:09,106 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 19:16:09,106 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 19:16:09,106 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 19:16:09,106 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 19:16:09,106 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 19:16:09,107 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 19:16:09,107 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 19:16:09,107 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 19:16:09,107 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 19:16:09,107 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 19:16:09,108 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 19:16:09,108 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 19:16:09,108 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 19:16:09,108 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 19:16:09,108 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 19:16:09,109 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 19:16:09,109 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 19:16:09,109 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 19:16:09,109 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2020-09-24 19:16:09,109 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 19:16:09,109 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 19:16:09,110 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 19:16:09,110 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 19:16:09,110 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 19:16:09,110 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 19:16:09,110 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 19:16:09,110 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 19:16:09,110 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 19:16:09,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 19:16:09,111 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 19:16:10,434 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 19:16:10,435 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 19:16:10,442 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 07:16:10 BoogieIcfgContainer [2020-09-24 19:16:10,443 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 19:16:10,445 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 19:16:10,445 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 19:16:10,448 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 19:16:10,449 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 07:16:08" (1/3) ... [2020-09-24 19:16:10,450 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ac3bcea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 07:16:10, skipping insertion in model container [2020-09-24 19:16:10,450 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:16:08" (2/3) ... [2020-09-24 19:16:10,450 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ac3bcea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 07:16:10, skipping insertion in model container [2020-09-24 19:16:10,451 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 07:16:10" (3/3) ... [2020-09-24 19:16:10,453 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product61.cil.c [2020-09-24 19:16:10,465 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 19:16:10,476 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 19:16:10,499 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 19:16:10,536 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 19:16:10,537 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 19:16:10,537 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 19:16:10,537 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 19:16:10,537 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 19:16:10,537 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 19:16:10,537 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 19:16:10,538 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 19:16:10,568 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states. [2020-09-24 19:16:10,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-09-24 19:16:10,590 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:16:10,591 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:16:10,592 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:16:10,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:16:10,600 INFO L82 PathProgramCache]: Analyzing trace with hash 442401887, now seen corresponding path program 1 times [2020-09-24 19:16:10,610 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:16:10,611 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [12170319] [2020-09-24 19:16:10,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:16:10,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:11,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:11,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:11,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:12,042 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:12,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 197 [2020-09-24 19:16:12,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 19:16:12,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1080 [2020-09-24 19:16:12,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:12,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:12,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-09-24 19:16:12,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:12,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-24 19:16:12,476 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:16:12,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:16:12,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:12,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:12,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:12,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 19:16:12,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:12,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 145 [2020-09-24 19:16:12,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:12,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:12,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:12,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:12,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:12,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 19:16:12,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:12,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:12,743 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:12,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:16:12,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:12,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:16:12,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:12,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:12,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:12,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:12,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:16:12,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 19:16:12,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:12,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:12,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:12,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:16:12,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:12,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:16:12,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:12,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:12,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:12,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:12,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:12,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 19:16:12,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:12,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:12,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:12,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:16:12,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:12,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:16:12,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:12,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:12,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:12,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:12,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:12,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 19:16:12,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:12,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:12,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:12,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:16:12,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:12,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:16:12,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:12,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:12,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:12,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:12,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:12,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 19:16:12,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:12,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:12,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:12,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:16:12,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:12,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:16:12,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:12,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:12,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:12,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:12,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:12,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 19:16:12,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:12,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:12,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:12,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 19:16:12,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:12,824 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 19:16:12,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:12,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:12,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 19:16:12,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:12,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:12,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:16:12,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:12,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:12,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:12,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:16:12,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:12,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:16:12,838 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:12,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:12,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:12,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:12,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:16:12,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-24 19:16:12,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:12,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:12,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:12,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:16:12,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:12,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:16:12,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:12,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:12,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:16:12,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:12,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-24 19:16:12,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-24 19:16:12,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:12,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:12,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:12,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:16:12,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:12,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:16:12,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:12,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:12,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:16:12,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:12,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:12,905 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 19:16:12,914 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [12170319] [2020-09-24 19:16:12,917 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:16:12,917 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 19:16:12,918 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194600046] [2020-09-24 19:16:12,928 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 19:16:12,928 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:16:12,946 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 19:16:12,948 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-24 19:16:12,951 INFO L87 Difference]: Start difference. First operand 359 states. Second operand 4 states. [2020-09-24 19:16:14,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:16:14,453 INFO L93 Difference]: Finished difference Result 579 states and 678 transitions. [2020-09-24 19:16:14,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-24 19:16:14,457 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 160 [2020-09-24 19:16:14,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:16:14,479 INFO L225 Difference]: With dead ends: 579 [2020-09-24 19:16:14,479 INFO L226 Difference]: Without dead ends: 356 [2020-09-24 19:16:14,485 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-24 19:16:14,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2020-09-24 19:16:14,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 308. [2020-09-24 19:16:14,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 308 states. [2020-09-24 19:16:14,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 338 transitions. [2020-09-24 19:16:14,625 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 338 transitions. Word has length 160 [2020-09-24 19:16:14,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:16:14,628 INFO L479 AbstractCegarLoop]: Abstraction has 308 states and 338 transitions. [2020-09-24 19:16:14,629 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 19:16:14,629 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 338 transitions. [2020-09-24 19:16:14,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-24 19:16:14,644 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:16:14,644 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:16:14,645 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 19:16:14,645 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:16:14,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:16:14,645 INFO L82 PathProgramCache]: Analyzing trace with hash 61425479, now seen corresponding path program 1 times [2020-09-24 19:16:14,645 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:16:14,646 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1351867903] [2020-09-24 19:16:14,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:16:14,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:14,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:14,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:15,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:15,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:15,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:15,826 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 198 [2020-09-24 19:16:15,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 19:16:15,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1071 [2020-09-24 19:16:15,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:15,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:16:15,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-09-24 19:16:15,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 19:16:15,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:16,097 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:16:16,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:16:16,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:16,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:16,217 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:16,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 19:16:16,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:16,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 109 [2020-09-24 19:16:16,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:16,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:16,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:16,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:16,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:16,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 19:16:16,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:16,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:16,256 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:16,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:16:16,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:16,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:16:16,257 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:16,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:16,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:16,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:16,258 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:16,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 19:16:16,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:16,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:16,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:16,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:16:16,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:16,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:16:16,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:16,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:16,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:16,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:16,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:16,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 19:16:16,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:16,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:16,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:16,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:16:16,269 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:16,269 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:16:16,269 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:16,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:16,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:16,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:16,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:16,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 19:16:16,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:16,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:16,274 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:16,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:16:16,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:16,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:16:16,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:16,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:16,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:16,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:16,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:16,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 19:16:16,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:16,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:16,290 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:16,290 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:16:16,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:16,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:16:16,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:16,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:16,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:16,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:16,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:16,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 19:16:16,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:16,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:16,298 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:16,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 19:16:16,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:16,299 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:16:16,299 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:16,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:16,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 19:16:16,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:16,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:16,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:16:16,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:16,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:16,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:16,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:16:16,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:16,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:16:16,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:16,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:16,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:16,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:16,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:16:16,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-09-24 19:16:16,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:16,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:16,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:16,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:16:16,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:16,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:16:16,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:16,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:16,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:16:16,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:16,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:16:16,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-24 19:16:16,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:16,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:16,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:16,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:16:16,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:16,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:16:16,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:16,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:16,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:16:16,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:16,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:16:16,426 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 19:16:16,426 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1351867903] [2020-09-24 19:16:16,427 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:16:16,427 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 19:16:16,427 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526542857] [2020-09-24 19:16:16,431 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 19:16:16,432 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:16:16,432 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 19:16:16,433 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-24 19:16:16,433 INFO L87 Difference]: Start difference. First operand 308 states and 338 transitions. Second operand 5 states. [2020-09-24 19:16:17,097 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 19:16:18,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:16:18,408 INFO L93 Difference]: Finished difference Result 508 states and 574 transitions. [2020-09-24 19:16:18,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 19:16:18,409 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 161 [2020-09-24 19:16:18,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:16:18,414 INFO L225 Difference]: With dead ends: 508 [2020-09-24 19:16:18,414 INFO L226 Difference]: Without dead ends: 345 [2020-09-24 19:16:18,416 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-24 19:16:18,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2020-09-24 19:16:18,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 298. [2020-09-24 19:16:18,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2020-09-24 19:16:18,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 325 transitions. [2020-09-24 19:16:18,464 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 325 transitions. Word has length 161 [2020-09-24 19:16:18,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:16:18,465 INFO L479 AbstractCegarLoop]: Abstraction has 298 states and 325 transitions. [2020-09-24 19:16:18,465 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 19:16:18,465 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 325 transitions. [2020-09-24 19:16:18,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2020-09-24 19:16:18,468 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:16:18,468 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:16:18,468 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 19:16:18,468 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:16:18,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:16:18,469 INFO L82 PathProgramCache]: Analyzing trace with hash -1225629302, now seen corresponding path program 1 times [2020-09-24 19:16:18,469 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:16:18,469 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1131418056] [2020-09-24 19:16:18,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:16:18,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:18,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:18,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:19,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:19,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:19,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 205 [2020-09-24 19:16:19,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 19:16:19,591 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1064 [2020-09-24 19:16:19,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:19,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:16:19,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-24 19:16:19,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-09-24 19:16:19,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:16:20,025 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:16:20,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:16:20,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:20,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:20,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:20,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 19:16:20,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:20,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 309 [2020-09-24 19:16:20,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:20,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:16:20,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:20,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-24 19:16:20,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:20,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 19:16:20,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:20,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:20,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:20,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:16:20,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:20,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:16:20,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:20,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:16:20,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:20,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:16:20,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:20,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 19:16:20,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:20,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:20,453 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:20,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:16:20,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:20,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:16:20,454 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:20,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:16:20,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:20,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:16:20,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:20,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 19:16:20,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:20,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:20,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:20,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:16:20,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:20,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 19:16:20,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:20,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:16:20,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:20,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:16:20,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:20,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 19:16:20,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:20,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:20,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:20,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:16:20,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:20,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:16:20,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:20,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:16:20,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:20,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:16:20,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:20,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 19:16:20,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:20,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:20,497 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:20,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:16:20,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:20,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:16:20,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:20,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:16:20,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:20,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 19:16:20,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:20,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 19:16:20,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:20,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:20,508 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:20,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 19:16:20,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:20,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 19:16:20,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:20,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:16:20,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:20,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 19:16:20,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:20,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:16:20,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:20,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:20,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:20,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:16:20,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:20,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:16:20,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:20,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:20,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:20,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:20,520 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:20,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-24 19:16:20,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:20,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:20,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:20,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:16:20,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:20,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:16:20,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:20,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:20,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:16:20,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:20,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:20,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-09-24 19:16:20,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:20,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:20,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:20,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:16:20,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:20,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:16:20,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:20,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:20,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:16:20,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:20,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:20,603 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 19:16:20,604 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1131418056] [2020-09-24 19:16:20,605 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:16:20,605 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 19:16:20,605 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50577209] [2020-09-24 19:16:20,606 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 19:16:20,606 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:16:20,606 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 19:16:20,607 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-24 19:16:20,608 INFO L87 Difference]: Start difference. First operand 298 states and 325 transitions. Second operand 5 states. [2020-09-24 19:16:21,124 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 19:16:22,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:16:22,316 INFO L93 Difference]: Finished difference Result 528 states and 600 transitions. [2020-09-24 19:16:22,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 19:16:22,317 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 170 [2020-09-24 19:16:22,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:16:22,320 INFO L225 Difference]: With dead ends: 528 [2020-09-24 19:16:22,320 INFO L226 Difference]: Without dead ends: 345 [2020-09-24 19:16:22,321 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-24 19:16:22,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2020-09-24 19:16:22,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 298. [2020-09-24 19:16:22,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2020-09-24 19:16:22,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 324 transitions. [2020-09-24 19:16:22,373 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 324 transitions. Word has length 170 [2020-09-24 19:16:22,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:16:22,374 INFO L479 AbstractCegarLoop]: Abstraction has 298 states and 324 transitions. [2020-09-24 19:16:22,374 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 19:16:22,374 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 324 transitions. [2020-09-24 19:16:22,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2020-09-24 19:16:22,378 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:16:22,378 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:16:22,378 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 19:16:22,379 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:16:22,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:16:22,379 INFO L82 PathProgramCache]: Analyzing trace with hash -2117137361, now seen corresponding path program 1 times [2020-09-24 19:16:22,379 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:16:22,380 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1051889768] [2020-09-24 19:16:22,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:16:22,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:22,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:22,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:22,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:23,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:23,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:23,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 231 [2020-09-24 19:16:23,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 19:16:23,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1001 [2020-09-24 19:16:23,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:23,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 19:16:23,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 180 [2020-09-24 19:16:23,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 19:16:23,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:23,718 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:16:23,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:16:23,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:23,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:23,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:23,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 19:16:23,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:23,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-09-24 19:16:23,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:23,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:23,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:23,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:23,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:16:23,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 19:16:23,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:23,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:23,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:23,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:16:23,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:23,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:16:23,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:23,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:23,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:23,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:23,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:23,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 19:16:23,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:23,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:23,917 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:23,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:16:23,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:23,918 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:16:23,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:23,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:23,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:23,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:23,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:23,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 19:16:23,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:23,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:23,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:23,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:16:23,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:23,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:16:23,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:23,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:23,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:23,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:23,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:23,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 19:16:23,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:23,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:23,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:23,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:16:23,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:23,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:16:23,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:23,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:23,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:23,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:23,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:23,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 19:16:23,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:23,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:23,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:23,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:16:23,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:23,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:16:23,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:23,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:23,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:23,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:23,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:23,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 19:16:23,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:23,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:23,951 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:23,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 19:16:23,952 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:23,952 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:16:23,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:23,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:23,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:23,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:23,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:23,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:16:23,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:23,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:23,958 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:23,959 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:16:23,959 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:23,959 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:16:23,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:23,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:23,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:23,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:23,960 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:23,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-24 19:16:23,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:23,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:23,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:23,996 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:23,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 19:16:23,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:16:23,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-24 19:16:23,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:23,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 19:16:23,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-09-24 19:16:23,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 19:16:23,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:16:24,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:16:24,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:24,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:24,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:24,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-24 19:16:24,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:24,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 19:16:24,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:24,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 19:16:24,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-24 19:16:24,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 19:16:24,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:24,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:16:24,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:24,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:24,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:24,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 19:16:24,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:24,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 19:16:24,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:24,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 19:16:24,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 19:16:24,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-24 19:16:24,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:24,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:16:24,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:24,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:24,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:24,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:16:24,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:24,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:16:24,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:24,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:16:24,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:24,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:16:24,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:16:24,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2020-09-24 19:16:24,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:24,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:24,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:24,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:16:24,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:24,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:16:24,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:24,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:24,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:16:24,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:24,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:16:24,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2020-09-24 19:16:24,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:24,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:24,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:24,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:16:24,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:24,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:16:24,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:24,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:24,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:16:24,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:24,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:16:24,128 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 19:16:24,128 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1051889768] [2020-09-24 19:16:24,129 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:16:24,129 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 19:16:24,129 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308129903] [2020-09-24 19:16:24,130 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 19:16:24,130 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:16:24,131 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 19:16:24,131 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-24 19:16:24,131 INFO L87 Difference]: Start difference. First operand 298 states and 324 transitions. Second operand 7 states. [2020-09-24 19:16:24,691 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 19:16:26,733 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 19:16:27,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:16:27,630 INFO L93 Difference]: Finished difference Result 687 states and 788 transitions. [2020-09-24 19:16:27,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-24 19:16:27,631 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 188 [2020-09-24 19:16:27,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:16:27,635 INFO L225 Difference]: With dead ends: 687 [2020-09-24 19:16:27,635 INFO L226 Difference]: Without dead ends: 504 [2020-09-24 19:16:27,637 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2020-09-24 19:16:27,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 504 states. [2020-09-24 19:16:27,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 504 to 436. [2020-09-24 19:16:27,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 436 states. [2020-09-24 19:16:27,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 436 states to 436 states and 471 transitions. [2020-09-24 19:16:27,709 INFO L78 Accepts]: Start accepts. Automaton has 436 states and 471 transitions. Word has length 188 [2020-09-24 19:16:27,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:16:27,710 INFO L479 AbstractCegarLoop]: Abstraction has 436 states and 471 transitions. [2020-09-24 19:16:27,710 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 19:16:27,710 INFO L276 IsEmpty]: Start isEmpty. Operand 436 states and 471 transitions. [2020-09-24 19:16:27,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2020-09-24 19:16:27,713 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:16:27,714 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:16:27,714 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 19:16:27,714 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:16:27,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:16:27,715 INFO L82 PathProgramCache]: Analyzing trace with hash -491868386, now seen corresponding path program 1 times [2020-09-24 19:16:27,715 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:16:27,715 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1648984448] [2020-09-24 19:16:27,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:16:27,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:27,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:28,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:28,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:28,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:28,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:28,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 259 [2020-09-24 19:16:28,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 19:16:28,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1003 [2020-09-24 19:16:28,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:28,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:16:28,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 185 [2020-09-24 19:16:28,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-24 19:16:28,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:29,113 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:16:29,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:16:29,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:29,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:29,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:29,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 19:16:29,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:29,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 112 [2020-09-24 19:16:29,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:29,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:29,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:29,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:29,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:29,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 19:16:29,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:29,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:29,277 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:29,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:16:29,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:29,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:16:29,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:29,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:29,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:29,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:29,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:29,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 19:16:29,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:29,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:29,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:29,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:16:29,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:29,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:16:29,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:29,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:29,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:29,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:29,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:29,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 19:16:29,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:29,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:29,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:29,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:16:29,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:29,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:16:29,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:29,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:29,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:29,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:29,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:29,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 19:16:29,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:29,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:29,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:29,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:16:29,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:29,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:16:29,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:29,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:29,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:29,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:29,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:29,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 19:16:29,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:29,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:29,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:29,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:16:29,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:29,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:16:29,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:29,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:29,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:29,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:29,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:29,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 19:16:29,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:29,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:29,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:29,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 19:16:29,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:29,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:16:29,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:29,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:29,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:29,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:29,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:29,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:16:29,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:29,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:29,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:29,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:16:29,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:29,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:16:29,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:29,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:29,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:29,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:29,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:29,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-24 19:16:29,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:29,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:29,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:29,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:29,537 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:29,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-09-24 19:16:29,538 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 19:16:29,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 191 [2020-09-24 19:16:29,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:29,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:16:29,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:29,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-24 19:16:29,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:16:29,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:16:29,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:29,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:29,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:29,631 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:29,631 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-24 19:16:29,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:16:29,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-09-24 19:16:29,632 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:29,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:16:29,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:29,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:16:29,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:16:29,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:16:29,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:29,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:29,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:29,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-24 19:16:29,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:29,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-24 19:16:29,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:29,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:16:29,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:29,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 19:16:29,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:16:29,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:16:29,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:29,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:29,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:29,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 19:16:29,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:29,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-24 19:16:29,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:29,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:16:29,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:29,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-24 19:16:29,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:16:29,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:16:29,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:29,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:29,715 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:29,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:16:29,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:29,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:16:29,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:29,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:29,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:29,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:29,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:16:29,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 19:16:29,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:29,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:29,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:29,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:16:29,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:29,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:16:29,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:29,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:16:29,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:29,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:16:29,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:16:29,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2020-09-24 19:16:29,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:29,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:29,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:29,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:16:29,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:29,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 19:16:29,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:29,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:16:29,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:29,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:16:29,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:16:29,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-09-24 19:16:29,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:29,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:29,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:29,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:16:29,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:29,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 19:16:29,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:29,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:16:29,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:29,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:16:29,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:16:29,934 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-24 19:16:29,934 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1648984448] [2020-09-24 19:16:29,935 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:16:29,935 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 19:16:29,935 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122201736] [2020-09-24 19:16:29,936 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 19:16:29,937 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:16:29,937 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 19:16:29,937 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-24 19:16:29,938 INFO L87 Difference]: Start difference. First operand 436 states and 471 transitions. Second operand 10 states. [2020-09-24 19:16:30,776 WARN L193 SmtUtils]: Spent 397.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 19:16:31,911 WARN L193 SmtUtils]: Spent 495.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 191 [2020-09-24 19:16:32,526 WARN L193 SmtUtils]: Spent 585.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 193 [2020-09-24 19:16:33,903 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 19:16:34,237 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-24 19:16:34,588 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 19:16:35,118 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 19:16:35,481 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 19:16:35,789 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 19:16:36,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:16:36,767 INFO L93 Difference]: Finished difference Result 824 states and 926 transitions. [2020-09-24 19:16:36,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-09-24 19:16:36,768 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 212 [2020-09-24 19:16:36,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:16:36,772 INFO L225 Difference]: With dead ends: 824 [2020-09-24 19:16:36,772 INFO L226 Difference]: Without dead ends: 503 [2020-09-24 19:16:36,774 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=157, Invalid=443, Unknown=0, NotChecked=0, Total=600 [2020-09-24 19:16:36,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 503 states. [2020-09-24 19:16:36,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 503 to 435. [2020-09-24 19:16:36,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 435 states. [2020-09-24 19:16:36,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 435 states to 435 states and 468 transitions. [2020-09-24 19:16:36,858 INFO L78 Accepts]: Start accepts. Automaton has 435 states and 468 transitions. Word has length 212 [2020-09-24 19:16:36,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:16:36,859 INFO L479 AbstractCegarLoop]: Abstraction has 435 states and 468 transitions. [2020-09-24 19:16:36,859 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 19:16:36,859 INFO L276 IsEmpty]: Start isEmpty. Operand 435 states and 468 transitions. [2020-09-24 19:16:36,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2020-09-24 19:16:36,863 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:16:36,863 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:16:36,864 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 19:16:36,864 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:16:36,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:16:36,865 INFO L82 PathProgramCache]: Analyzing trace with hash -1974370414, now seen corresponding path program 1 times [2020-09-24 19:16:36,865 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:16:36,866 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [997333352] [2020-09-24 19:16:36,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:16:36,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:37,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:37,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:37,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 288 [2020-09-24 19:16:37,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:37,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 983 [2020-09-24 19:16:37,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:37,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:16:37,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 205 [2020-09-24 19:16:37,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 19:16:37,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:16:38,227 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:16:38,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:16:38,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:38,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:38,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:38,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 19:16:38,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:38,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 165 [2020-09-24 19:16:38,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:38,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:38,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:38,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:38,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:38,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 19:16:38,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:38,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:38,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:38,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:16:38,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:38,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:16:38,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:38,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:38,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:38,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:38,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:38,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 19:16:38,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:38,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:38,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:38,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:16:38,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:38,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:16:38,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:38,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:38,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:38,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:38,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:38,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 19:16:38,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:38,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:38,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:38,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:16:38,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:38,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:16:38,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:38,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:38,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:38,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:38,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:38,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 19:16:38,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:38,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:38,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:38,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:16:38,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:38,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:16:38,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:38,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:38,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:38,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:38,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:16:38,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 19:16:38,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:38,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:38,480 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:38,480 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:16:38,480 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:38,480 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:16:38,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:38,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:38,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:38,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:38,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:38,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 19:16:38,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:38,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:38,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:38,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 19:16:38,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:38,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:16:38,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:38,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:38,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:38,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:38,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:38,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:16:38,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:38,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:38,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:38,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:16:38,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:38,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:16:38,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:38,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:38,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:38,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:38,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:38,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-24 19:16:38,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:38,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:38,626 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:38,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 19:16:38,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:38,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-09-24 19:16:38,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:38,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:16:38,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-24 19:16:38,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 19:16:38,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:38,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:16:38,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:38,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:38,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:38,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-24 19:16:38,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:38,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 115 [2020-09-24 19:16:38,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:38,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:16:38,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-24 19:16:38,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 19:16:38,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:38,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:16:38,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:38,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:38,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:38,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-24 19:16:38,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:38,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-09-24 19:16:38,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:38,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:16:38,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-24 19:16:38,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 19:16:38,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:38,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:16:38,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:38,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:38,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:38,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 19:16:38,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:38,939 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-09-24 19:16:38,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:38,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:16:38,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:38,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-24 19:16:38,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:38,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:16:38,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:38,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:38,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:38,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:16:38,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:38,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:16:38,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:38,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:38,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:38,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:38,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:16:38,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 19:16:38,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:38,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:39,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:39,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-24 19:16:39,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:39,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 19:16:39,007 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:39,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:39,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-24 19:16:39,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:39,008 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:39,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 19:16:39,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:39,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:39,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:39,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 19:16:39,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:39,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:16:39,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:39,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:39,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:39,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:39,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:16:39,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 19:16:39,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:39,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:39,024 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:39,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:16:39,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:39,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:16:39,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:39,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:39,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:39,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:39,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:16:39,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-24 19:16:39,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:39,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:39,036 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:39,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:16:39,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:39,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:16:39,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:39,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:39,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:39,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:39,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:16:39,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2020-09-24 19:16:39,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:39,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:39,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:39,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:16:39,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:39,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:16:39,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:39,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:39,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:16:39,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:39,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:39,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2020-09-24 19:16:39,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:39,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:39,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:39,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:16:39,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:39,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:16:39,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:39,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:39,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:16:39,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:39,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:39,130 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 19:16:39,130 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [997333352] [2020-09-24 19:16:39,131 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:16:39,131 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 19:16:39,133 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778628068] [2020-09-24 19:16:39,134 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 19:16:39,134 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:16:39,135 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 19:16:39,135 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-24 19:16:39,136 INFO L87 Difference]: Start difference. First operand 435 states and 468 transitions. Second operand 10 states. [2020-09-24 19:16:40,571 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 19:16:40,881 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 19:16:41,238 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 19:16:41,536 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 19:16:41,860 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 19:16:42,157 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 19:16:43,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:16:43,561 INFO L93 Difference]: Finished difference Result 827 states and 934 transitions. [2020-09-24 19:16:43,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-24 19:16:43,562 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 235 [2020-09-24 19:16:43,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:16:43,566 INFO L225 Difference]: With dead ends: 827 [2020-09-24 19:16:43,566 INFO L226 Difference]: Without dead ends: 507 [2020-09-24 19:16:43,568 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2020-09-24 19:16:43,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 507 states. [2020-09-24 19:16:43,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 507 to 443. [2020-09-24 19:16:43,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 443 states. [2020-09-24 19:16:43,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 476 transitions. [2020-09-24 19:16:43,647 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 476 transitions. Word has length 235 [2020-09-24 19:16:43,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:16:43,648 INFO L479 AbstractCegarLoop]: Abstraction has 443 states and 476 transitions. [2020-09-24 19:16:43,648 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 19:16:43,648 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 476 transitions. [2020-09-24 19:16:43,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2020-09-24 19:16:43,654 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:16:43,654 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:16:43,654 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-24 19:16:43,655 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:16:43,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:16:43,655 INFO L82 PathProgramCache]: Analyzing trace with hash -220207118, now seen corresponding path program 1 times [2020-09-24 19:16:43,656 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:16:43,656 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1769204826] [2020-09-24 19:16:43,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:16:43,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:43,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:44,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:44,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 288 [2020-09-24 19:16:44,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:44,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 882 [2020-09-24 19:16:44,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:44,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:16:44,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 197 [2020-09-24 19:16:44,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:16:44,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:44,917 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:16:44,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:16:44,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:44,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:45,030 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:45,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 19:16:45,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:45,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-09-24 19:16:45,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:45,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:45,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:45,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:45,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:45,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 19:16:45,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:45,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:45,065 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:45,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:16:45,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:45,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:16:45,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:45,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:45,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:45,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:45,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:45,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 19:16:45,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:45,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:45,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:45,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:16:45,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:45,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:16:45,072 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:45,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:45,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:45,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:45,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:45,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 19:16:45,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:45,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:45,079 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:45,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:16:45,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:45,080 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:16:45,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:45,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:45,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:45,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:45,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:45,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 19:16:45,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:45,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:45,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:45,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:16:45,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:45,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:16:45,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:45,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:45,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:45,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:45,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:45,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 19:16:45,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:45,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:45,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:45,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:16:45,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:45,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:16:45,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:45,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:45,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:45,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:45,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:45,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 19:16:45,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:45,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:45,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:45,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 19:16:45,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:45,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:16:45,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:45,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:45,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:45,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:45,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:45,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:16:45,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:45,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:45,121 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:45,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:16:45,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:45,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:16:45,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:45,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:45,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:45,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:45,123 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:45,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-24 19:16:45,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:45,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:45,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:45,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 19:16:45,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:45,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-09-24 19:16:45,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:45,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:16:45,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-09-24 19:16:45,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:16:45,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:45,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:16:45,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:45,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:45,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:45,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-24 19:16:45,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:45,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-09-24 19:16:45,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:45,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:16:45,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-24 19:16:45,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:16:45,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:45,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:16:45,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:45,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:45,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:45,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-24 19:16:45,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:45,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-09-24 19:16:45,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:45,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:16:45,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 19:16:45,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:16:45,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:45,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:16:45,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:45,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:45,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:45,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 19:16:45,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:45,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-09-24 19:16:45,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:45,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:16:45,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 19:16:45,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:16:45,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:16:45,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:16:45,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:45,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:45,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:45,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:16:45,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:45,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 19:16:45,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:45,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 19:16:45,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:45,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:16:45,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:16:45,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 19:16:45,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:45,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:45,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:45,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-24 19:16:45,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:45,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 19:16:45,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:45,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:45,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-24 19:16:45,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:45,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:16:45,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 19:16:45,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:45,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:45,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:45,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 19:16:45,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:45,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 19:16:45,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:45,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:45,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:45,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:45,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:16:45,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 19:16:45,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:45,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:45,602 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:45,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:16:45,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:45,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:16:45,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:45,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:45,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:45,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:45,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:45,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-24 19:16:45,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:45,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:45,611 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:45,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:16:45,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:45,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:16:45,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:45,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:45,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:45,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:45,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:45,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2020-09-24 19:16:45,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:45,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:45,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:45,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:16:45,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:45,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:16:45,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:45,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:45,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:16:45,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:45,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:45,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2020-09-24 19:16:45,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:45,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:45,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:45,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:16:45,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:45,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:16:45,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:45,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:45,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:16:45,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:45,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:45,699 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 19:16:45,700 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1769204826] [2020-09-24 19:16:45,700 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:16:45,700 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 19:16:45,705 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635584314] [2020-09-24 19:16:45,706 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 19:16:45,706 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:16:45,707 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 19:16:45,707 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-24 19:16:45,707 INFO L87 Difference]: Start difference. First operand 443 states and 476 transitions. Second operand 9 states. [2020-09-24 19:16:46,958 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 19:16:47,316 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 19:16:47,647 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 19:16:47,972 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 19:16:48,270 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 19:16:49,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:16:49,566 INFO L93 Difference]: Finished difference Result 844 states and 952 transitions. [2020-09-24 19:16:49,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-24 19:16:49,567 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 235 [2020-09-24 19:16:49,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:16:49,571 INFO L225 Difference]: With dead ends: 844 [2020-09-24 19:16:49,571 INFO L226 Difference]: Without dead ends: 516 [2020-09-24 19:16:49,573 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2020-09-24 19:16:49,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 516 states. [2020-09-24 19:16:49,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 516 to 449. [2020-09-24 19:16:49,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 449 states. [2020-09-24 19:16:49,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 449 states to 449 states and 482 transitions. [2020-09-24 19:16:49,628 INFO L78 Accepts]: Start accepts. Automaton has 449 states and 482 transitions. Word has length 235 [2020-09-24 19:16:49,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:16:49,628 INFO L479 AbstractCegarLoop]: Abstraction has 449 states and 482 transitions. [2020-09-24 19:16:49,629 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 19:16:49,629 INFO L276 IsEmpty]: Start isEmpty. Operand 449 states and 482 transitions. [2020-09-24 19:16:49,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2020-09-24 19:16:49,632 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:16:49,632 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:16:49,633 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-24 19:16:49,633 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:16:49,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:16:49,633 INFO L82 PathProgramCache]: Analyzing trace with hash -1551705169, now seen corresponding path program 1 times [2020-09-24 19:16:49,634 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:16:49,634 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1208776898] [2020-09-24 19:16:49,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:16:49,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:49,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:50,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:50,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 288 [2020-09-24 19:16:50,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:50,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1015 [2020-09-24 19:16:50,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:50,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-24 19:16:50,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-24 19:16:50,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-09-24 19:16:50,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:51,063 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:16:51,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:16:51,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:51,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:51,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:51,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 19:16:51,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:51,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 286 [2020-09-24 19:16:51,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:51,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:16:51,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:51,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 19:16:51,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:51,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 19:16:51,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:51,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:51,449 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:51,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:16:51,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:51,450 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:16:51,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:51,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:16:51,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:51,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:16:51,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:16:51,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 19:16:51,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:51,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:51,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:51,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:16:51,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:51,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:16:51,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:51,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:16:51,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:51,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:16:51,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:16:51,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 19:16:51,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:51,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:51,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:51,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:16:51,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:51,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 19:16:51,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:51,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:16:51,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:51,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:16:51,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:16:51,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 19:16:51,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:51,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:51,488 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:51,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:16:51,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:51,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:16:51,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:51,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:16:51,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:51,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:16:51,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:51,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 19:16:51,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:51,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:51,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:51,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:16:51,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:51,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:16:51,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:51,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:16:51,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:51,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 19:16:51,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:16:51,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 19:16:51,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:51,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:51,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:51,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 19:16:51,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:51,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:16:51,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:51,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:16:51,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:51,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 19:16:51,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:16:51,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:16:51,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:51,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:51,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:51,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:16:51,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:51,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:16:51,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:51,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:51,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:51,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:51,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:16:51,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-24 19:16:51,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:51,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:51,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:51,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 19:16:51,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:51,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-09-24 19:16:51,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:51,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:16:51,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-09-24 19:16:51,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-09-24 19:16:51,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:16:51,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:16:51,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:51,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:51,680 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:51,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-24 19:16:51,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:51,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-09-24 19:16:51,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:51,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:16:51,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:51,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-24 19:16:51,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:16:51,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:16:51,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:51,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:51,743 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:51,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-24 19:16:51,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:51,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-09-24 19:16:51,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:51,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:16:51,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:51,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-24 19:16:51,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:16:51,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:16:51,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:51,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:51,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:51,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 19:16:51,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:51,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-24 19:16:51,791 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:51,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:16:51,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:51,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 19:16:51,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:16:51,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:16:51,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:51,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:51,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:51,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:16:51,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:51,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:16:51,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:51,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:16:51,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:51,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 19:16:51,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 19:16:51,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 19:16:51,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:51,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:51,865 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:51,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-24 19:16:51,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:51,866 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-24 19:16:51,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:51,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:16:51,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:51,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-24 19:16:51,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:16:51,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 19:16:51,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:51,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:51,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:51,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 19:16:51,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:51,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:16:51,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:51,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:51,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:51,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:51,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:16:51,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 19:16:51,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:51,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:51,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:51,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:16:51,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:51,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:16:51,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:51,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:51,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:51,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:51,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:16:51,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-24 19:16:51,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:51,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:51,895 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:51,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:16:51,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:51,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:16:51,896 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:51,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:51,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:51,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:51,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:16:51,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2020-09-24 19:16:51,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:51,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:51,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:51,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:16:51,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:51,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 19:16:51,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:51,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:51,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:16:51,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:51,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:16:51,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2020-09-24 19:16:51,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:51,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:51,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:51,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:16:51,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:51,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:16:51,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:51,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:51,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:16:51,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:51,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:16:52,045 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 19:16:52,046 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1208776898] [2020-09-24 19:16:52,047 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:16:52,047 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 19:16:52,047 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8155371] [2020-09-24 19:16:52,048 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 19:16:52,049 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:16:52,049 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 19:16:52,049 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-24 19:16:52,050 INFO L87 Difference]: Start difference. First operand 449 states and 482 transitions. Second operand 7 states. [2020-09-24 19:16:52,658 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 19:16:53,334 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 19:16:56,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:16:56,137 INFO L93 Difference]: Finished difference Result 1105 states and 1271 transitions. [2020-09-24 19:16:56,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-24 19:16:56,138 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 235 [2020-09-24 19:16:56,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:16:56,144 INFO L225 Difference]: With dead ends: 1105 [2020-09-24 19:16:56,144 INFO L226 Difference]: Without dead ends: 771 [2020-09-24 19:16:56,146 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 47 SyntacticMatches, 4 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=70, Invalid=170, Unknown=0, NotChecked=0, Total=240 [2020-09-24 19:16:56,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 771 states. [2020-09-24 19:16:56,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 771 to 702. [2020-09-24 19:16:56,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 702 states. [2020-09-24 19:16:56,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 702 states to 702 states and 774 transitions. [2020-09-24 19:16:56,234 INFO L78 Accepts]: Start accepts. Automaton has 702 states and 774 transitions. Word has length 235 [2020-09-24 19:16:56,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:16:56,235 INFO L479 AbstractCegarLoop]: Abstraction has 702 states and 774 transitions. [2020-09-24 19:16:56,235 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 19:16:56,235 INFO L276 IsEmpty]: Start isEmpty. Operand 702 states and 774 transitions. [2020-09-24 19:16:56,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2020-09-24 19:16:56,240 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:16:56,240 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:16:56,241 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-24 19:16:56,241 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:16:56,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:16:56,241 INFO L82 PathProgramCache]: Analyzing trace with hash -722780298, now seen corresponding path program 1 times [2020-09-24 19:16:56,242 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:16:56,242 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [500337050] [2020-09-24 19:16:56,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:16:56,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:56,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:56,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:57,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:57,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 295 [2020-09-24 19:16:57,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:16:57,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1022 [2020-09-24 19:16:57,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:57,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-24 19:16:57,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 145 [2020-09-24 19:16:57,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 133 [2020-09-24 19:16:57,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:16:57,681 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:16:57,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:16:57,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:57,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:57,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:57,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 19:16:57,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:57,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-09-24 19:16:57,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:57,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:57,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:57,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:57,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:57,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 19:16:57,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:57,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:57,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:57,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:16:57,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:57,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:16:57,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:57,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:57,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:57,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:57,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:57,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 19:16:57,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:57,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:57,827 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:57,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:16:57,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:57,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:16:57,828 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:57,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:57,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:57,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:57,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:57,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 19:16:57,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:57,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:57,833 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:57,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:16:57,833 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:57,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:16:57,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:57,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:57,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:57,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:57,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:57,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 19:16:57,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:57,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:57,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:57,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:16:57,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:57,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:16:57,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:57,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:57,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:57,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:57,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:57,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 19:16:57,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:57,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:57,853 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:57,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:16:57,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:57,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:16:57,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:57,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:57,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:57,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:57,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:57,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 19:16:57,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:57,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:57,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:57,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 19:16:57,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:57,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 19:16:57,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:57,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 19:16:57,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:57,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 19:16:57,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:57,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-24 19:16:57,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:57,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:57,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:57,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 19:16:57,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:57,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:16:57,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:57,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:16:57,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:57,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 19:16:57,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:57,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:16:57,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:57,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:57,906 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:57,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:16:57,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:57,907 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:16:57,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:57,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:57,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:57,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:57,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:57,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-24 19:16:57,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:57,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:57,994 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:57,995 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 19:16:57,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:57,995 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-09-24 19:16:57,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:57,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 19:16:57,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:58,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-09-24 19:16:58,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 19:16:58,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:16:58,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:58,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:58,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:58,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-24 19:16:58,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:58,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-09-24 19:16:58,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:58,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:16:58,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:58,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-24 19:16:58,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:16:58,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:16:58,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:58,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:58,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:58,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-24 19:16:58,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:58,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-09-24 19:16:58,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:58,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:16:58,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:58,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-24 19:16:58,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:16:58,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:16:58,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:58,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:58,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:58,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 19:16:58,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:58,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-24 19:16:58,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:58,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:16:58,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:58,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 19:16:58,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:16:58,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:16:58,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:58,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:58,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:58,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:16:58,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:58,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:16:58,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:58,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:16:58,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:58,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 19:16:58,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:16:58,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 19:16:58,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:58,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:58,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:58,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-24 19:16:58,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:58,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-24 19:16:58,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:58,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:16:58,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:58,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-24 19:16:58,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:16:58,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 19:16:58,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:58,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:58,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:58,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 19:16:58,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:58,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:16:58,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:58,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:58,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:58,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:58,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:16:58,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 19:16:58,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:58,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:58,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:58,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:16:58,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:58,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:16:58,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:58,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:58,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:58,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:58,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:16:58,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-24 19:16:58,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:58,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:58,243 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:58,243 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:16:58,244 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:58,244 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:16:58,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:58,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:58,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:58,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:58,246 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:16:58,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2020-09-24 19:16:58,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:58,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:58,267 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:58,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:16:58,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:58,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 19:16:58,268 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:58,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:16:58,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:58,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:16:58,269 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:58,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-09-24 19:16:58,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:58,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:58,342 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:58,342 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:16:58,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:58,343 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 19:16:58,343 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:58,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:58,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:16:58,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:58,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 19:16:58,436 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 19:16:58,436 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [500337050] [2020-09-24 19:16:58,436 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:16:58,437 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-09-24 19:16:58,437 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467916865] [2020-09-24 19:16:58,438 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-24 19:16:58,438 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:16:58,439 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-24 19:16:58,440 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2020-09-24 19:16:58,440 INFO L87 Difference]: Start difference. First operand 702 states and 774 transitions. Second operand 14 states.