/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_product34.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 19:14:18,766 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 19:14:18,770 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 19:14:18,811 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 19:14:18,812 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 19:14:18,823 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 19:14:18,826 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 19:14:18,829 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 19:14:18,830 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 19:14:18,834 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 19:14:18,835 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 19:14:18,838 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 19:14:18,838 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 19:14:18,841 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 19:14:18,843 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 19:14:18,845 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 19:14:18,846 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 19:14:18,847 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 19:14:18,849 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 19:14:18,858 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 19:14:18,860 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 19:14:18,861 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 19:14:18,862 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 19:14:18,863 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 19:14:18,866 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 19:14:18,866 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 19:14:18,866 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 19:14:18,869 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 19:14:18,870 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 19:14:18,871 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 19:14:18,871 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 19:14:18,872 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 19:14:18,873 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 19:14:18,874 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 19:14:18,875 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 19:14:18,875 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 19:14:18,876 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 19:14:18,876 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 19:14:18,876 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 19:14:18,878 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 19:14:18,879 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 19:14:18,880 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 19:14:18,926 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 19:14:18,927 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 19:14:18,929 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 19:14:18,929 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 19:14:18,929 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 19:14:18,930 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 19:14:18,930 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 19:14:18,930 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 19:14:18,930 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 19:14:18,931 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 19:14:18,932 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 19:14:18,932 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 19:14:18,932 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 19:14:18,933 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 19:14:18,933 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 19:14:18,933 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 19:14:18,933 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 19:14:18,934 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 19:14:18,934 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 19:14:18,934 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 19:14:18,934 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 19:14:18,934 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 19:14:18,935 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 19:14:18,935 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 19:14:18,935 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 19:14:18,935 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 19:14:18,935 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 19:14:18,935 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 19:14:18,936 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 19:14:18,936 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 19:14:19,377 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 19:14:19,396 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 19:14:19,400 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 19:14:19,403 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 19:14:19,403 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 19:14:19,404 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product34.cil.c [2020-09-24 19:14:19,486 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/50b77512d/6de4cc906b3545fe966aeda54ad4d80a/FLAGed38dfe36 [2020-09-24 19:14:20,084 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 19:14:20,085 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec5_product34.cil.c [2020-09-24 19:14:20,101 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/50b77512d/6de4cc906b3545fe966aeda54ad4d80a/FLAGed38dfe36 [2020-09-24 19:14:20,349 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/50b77512d/6de4cc906b3545fe966aeda54ad4d80a [2020-09-24 19:14:20,365 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 19:14:20,372 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 19:14:20,376 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 19:14:20,376 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 19:14:20,381 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 19:14:20,382 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 07:14:20" (1/1) ... [2020-09-24 19:14:20,387 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c86c800 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:14:20, skipping insertion in model container [2020-09-24 19:14:20,388 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 07:14:20" (1/1) ... [2020-09-24 19:14:20,398 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 19:14:20,472 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 19:14:20,915 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 19:14:21,032 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 19:14:21,144 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 19:14:21,182 INFO L208 MainTranslator]: Completed translation [2020-09-24 19:14:21,183 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:14:21 WrapperNode [2020-09-24 19:14:21,183 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 19:14:21,184 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 19:14:21,184 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 19:14:21,184 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 19:14:21,199 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:14:21" (1/1) ... [2020-09-24 19:14:21,199 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:14:21" (1/1) ... [2020-09-24 19:14:21,219 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:14:21" (1/1) ... [2020-09-24 19:14:21,220 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:14:21" (1/1) ... [2020-09-24 19:14:21,250 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:14:21" (1/1) ... [2020-09-24 19:14:21,261 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:14:21" (1/1) ... [2020-09-24 19:14:21,267 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:14:21" (1/1) ... [2020-09-24 19:14:21,275 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 19:14:21,276 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 19:14:21,276 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 19:14:21,276 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 19:14:21,278 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:14:21" (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 19:14:21,364 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 19:14:21,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 19:14:21,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 19:14:21,365 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 19:14:21,365 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 19:14:21,365 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 19:14:21,366 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 19:14:21,366 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 19:14:21,367 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 19:14:21,367 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 19:14:21,367 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 19:14:21,367 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 19:14:21,368 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 19:14:21,368 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 19:14:21,368 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 19:14:21,369 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 19:14:21,369 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 19:14:21,369 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 19:14:21,370 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 19:14:21,370 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 19:14:21,370 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 19:14:21,370 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 19:14:21,371 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 19:14:21,371 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 19:14:21,371 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 19:14:21,372 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 19:14:21,372 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 19:14:21,372 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 19:14:21,372 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 19:14:21,372 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 19:14:21,372 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 19:14:21,373 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-24 19:14:21,373 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2020-09-24 19:14:21,373 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2020-09-24 19:14:21,373 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2020-09-24 19:14:21,373 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 19:14:21,373 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 19:14:21,374 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 19:14:21,374 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 19:14:21,374 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 19:14:21,374 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 19:14:21,374 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 19:14:21,374 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 19:14:21,375 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 19:14:21,375 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 19:14:21,375 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 19:14:21,375 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 19:14:21,375 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 19:14:21,375 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 19:14:21,376 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 19:14:21,376 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 19:14:21,376 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 19:14:21,376 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 19:14:21,376 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 19:14:21,377 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 19:14:21,377 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 19:14:21,377 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 19:14:21,377 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 19:14:21,377 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 19:14:21,377 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 19:14:21,378 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 19:14:21,378 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 19:14:21,378 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 19:14:21,378 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 19:14:21,378 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 19:14:21,378 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 19:14:21,379 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 19:14:21,379 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 19:14:21,379 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 19:14:21,379 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 19:14:21,379 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 19:14:21,379 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 19:14:21,380 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-24 19:14:21,380 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 19:14:21,380 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 19:14:21,380 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 19:14:21,380 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 19:14:21,380 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 19:14:21,381 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 19:14:21,381 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 19:14:21,381 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2020-09-24 19:14:21,381 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2020-09-24 19:14:21,381 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 19:14:21,381 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 19:14:21,382 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 19:14:21,382 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 19:14:21,382 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2020-09-24 19:14:21,382 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 19:14:21,382 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 19:14:21,382 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 19:14:21,382 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 19:14:21,383 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 19:14:21,383 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 19:14:21,383 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 19:14:22,492 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 19:14:22,492 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 19:14:22,499 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 07:14:22 BoogieIcfgContainer [2020-09-24 19:14:22,499 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 19:14:22,500 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 19:14:22,500 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 19:14:22,504 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 19:14:22,504 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 07:14:20" (1/3) ... [2020-09-24 19:14:22,505 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a3c76c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 07:14:22, skipping insertion in model container [2020-09-24 19:14:22,505 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:14:21" (2/3) ... [2020-09-24 19:14:22,506 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a3c76c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 07:14:22, skipping insertion in model container [2020-09-24 19:14:22,506 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 07:14:22" (3/3) ... [2020-09-24 19:14:22,508 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product34.cil.c [2020-09-24 19:14:22,519 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 19:14:22,530 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 19:14:22,552 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 19:14:22,584 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 19:14:22,584 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 19:14:22,584 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 19:14:22,584 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 19:14:22,584 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 19:14:22,585 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 19:14:22,585 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 19:14:22,585 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 19:14:22,609 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states. [2020-09-24 19:14:22,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-09-24 19:14:22,627 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:14:22,628 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 19:14:22,629 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:14:22,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:14:22,637 INFO L82 PathProgramCache]: Analyzing trace with hash 1009197842, now seen corresponding path program 1 times [2020-09-24 19:14:22,648 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:14:22,648 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1951130031] [2020-09-24 19:14:22,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:14:23,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:14:23,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:14:23,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:14:24,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:14:24,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 197 [2020-09-24 19:14:24,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:14:24,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1024 [2020-09-24 19:14:24,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:14:24,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:14:24,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-09-24 19:14:24,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:14:24,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 19:14:24,441 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:14:24,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:14:24,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:14:24,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:14:24,626 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:14:24,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 19:14:24,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:14:24,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 163 [2020-09-24 19:14:24,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:14:24,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:14:24,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:14:24,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:14:24,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:14:24,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 19:14:24,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:14:24,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:14:24,743 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:14:24,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:14:24,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:14:24,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:14:24,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:14:24,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:14:24,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:14:24,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:14:24,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:14:24,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 19:14:24,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:14:24,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:14:24,749 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:14:24,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:14:24,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:14:24,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:14:24,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:14:24,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:14:24,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:14:24,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:14:24,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:14:24,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 19:14:24,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:14:24,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:14:24,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:14:24,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:14:24,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:14:24,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:14:24,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:14:24,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:14:24,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:14:24,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:14:24,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:14:24,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 19:14:24,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:14:24,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:14:24,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:14:24,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:14:24,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:14:24,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:14:24,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:14:24,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:14:24,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:14:24,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:14:24,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:14:24,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 19:14:24,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:14:24,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:14:24,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:14:24,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:14:24,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:14:24,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:14:24,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:14:24,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:14:24,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:14:24,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:14:24,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:14:24,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 19:14:24,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:14:24,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:14:24,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:14:24,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 19:14:24,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:14:24,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:14:24,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:14:24,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:14:24,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 19:14:24,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:14:24,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:14:24,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:14:24,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:14:24,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:14:24,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:14:24,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:14:24,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:14:24,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:14:24,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:14:24,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:14:24,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:14:24,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:14:24,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:14:24,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-24 19:14:24,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:14:24,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:14:24,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:14:24,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:14:24,806 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:14:24,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:14:24,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:14:24,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:14:24,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:14:24,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:14:24,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:14:24,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-24 19:14:24,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:14:24,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:14:24,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:14:24,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:14:24,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:14:24,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:14:24,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:14:24,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:14:24,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:14:24,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:14:24,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:14:24,847 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 19:14:24,848 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1951130031] [2020-09-24 19:14:24,850 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:14:24,851 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 19:14:24,852 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128419035] [2020-09-24 19:14:24,858 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 19:14:24,859 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:14:24,876 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 19:14:24,877 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-24 19:14:24,879 INFO L87 Difference]: Start difference. First operand 295 states. Second operand 4 states. [2020-09-24 19:14:25,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:14:25,855 INFO L93 Difference]: Finished difference Result 447 states and 526 transitions. [2020-09-24 19:14:25,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-24 19:14:25,857 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 160 [2020-09-24 19:14:25,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:14:25,877 INFO L225 Difference]: With dead ends: 447 [2020-09-24 19:14:25,877 INFO L226 Difference]: Without dead ends: 288 [2020-09-24 19:14:25,884 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-24 19:14:25,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2020-09-24 19:14:25,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 244. [2020-09-24 19:14:25,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 244 states. [2020-09-24 19:14:25,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 264 transitions. [2020-09-24 19:14:25,985 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 264 transitions. Word has length 160 [2020-09-24 19:14:25,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:14:25,986 INFO L479 AbstractCegarLoop]: Abstraction has 244 states and 264 transitions. [2020-09-24 19:14:25,986 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 19:14:25,986 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 264 transitions. [2020-09-24 19:14:25,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-24 19:14:25,991 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:14:25,992 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 19:14:25,992 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 19:14:25,992 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:14:25,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:14:25,993 INFO L82 PathProgramCache]: Analyzing trace with hash 190378574, now seen corresponding path program 1 times [2020-09-24 19:14:25,993 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:14:25,993 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [935310644] [2020-09-24 19:14:25,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:14:26,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:14:26,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:14:26,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:14:27,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:14:27,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 198 [2020-09-24 19:14:27,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:14:27,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1031 [2020-09-24 19:14:27,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:14:27,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:14:27,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-09-24 19:14:27,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 19:14:27,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:14:27,392 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:14:27,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:14:27,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:14:27,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:14:27,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:14:27,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 19:14:27,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:14:27,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-09-24 19:14:27,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:14:27,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:14:27,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:14:27,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:14:27,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:14:27,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 19:14:27,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:14:27,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:14:27,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:14:27,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:14:27,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:14:27,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:14:27,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:14:27,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:14:27,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:14:27,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:14:27,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:14:27,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 19:14:27,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:14:27,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:14:27,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:14:27,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:14:27,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:14:27,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:14:27,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:14:27,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:14:27,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:14:27,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:14:27,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:14:27,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 19:14:27,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:14:27,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:14:27,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:14:27,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:14:27,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:14:27,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:14:27,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:14:27,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:14:27,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:14:27,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:14:27,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:14:27,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 19:14:27,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:14:27,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:14:27,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:14:27,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:14:27,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:14:27,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:14:27,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:14:27,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:14:27,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:14:27,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:14:27,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:14:27,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 19:14:27,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:14:27,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:14:27,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:14:27,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:14:27,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:14:27,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:14:27,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:14:27,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:14:27,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:14:27,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:14:27,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:14:27,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 19:14:27,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:14:27,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:14:27,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:14:27,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 19:14:27,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:14:27,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:14:27,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:14:27,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:14:27,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 19:14:27,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:14:27,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:14:27,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:14:27,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:14:27,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:14:27,648 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:14:27,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:14:27,648 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:14:27,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:14:27,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:14:27,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:14:27,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:14:27,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:14:27,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:14:27,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-09-24 19:14:27,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:14:27,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:14:27,656 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:14:27,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:14:27,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:14:27,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:14:27,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:14:27,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:14:27,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:14:27,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:14:27,659 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:14:27,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-24 19:14:27,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:14:27,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:14:27,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:14:27,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:14:27,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:14:27,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:14:27,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:14:27,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:14:27,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:14:27,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:14:27,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:14:27,716 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 19:14:27,717 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [935310644] [2020-09-24 19:14:27,717 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:14:27,717 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 19:14:27,718 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824633655] [2020-09-24 19:14:27,720 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 19:14:27,720 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:14:27,721 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 19:14:27,721 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-24 19:14:27,721 INFO L87 Difference]: Start difference. First operand 244 states and 264 transitions. Second operand 5 states. [2020-09-24 19:14:28,419 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 19:14:29,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:14:29,266 INFO L93 Difference]: Finished difference Result 372 states and 418 transitions. [2020-09-24 19:14:29,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 19:14:29,267 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 161 [2020-09-24 19:14:29,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:14:29,271 INFO L225 Difference]: With dead ends: 372 [2020-09-24 19:14:29,272 INFO L226 Difference]: Without dead ends: 277 [2020-09-24 19:14:29,273 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-24 19:14:29,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2020-09-24 19:14:29,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 234. [2020-09-24 19:14:29,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 234 states. [2020-09-24 19:14:29,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 251 transitions. [2020-09-24 19:14:29,316 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 251 transitions. Word has length 161 [2020-09-24 19:14:29,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:14:29,317 INFO L479 AbstractCegarLoop]: Abstraction has 234 states and 251 transitions. [2020-09-24 19:14:29,317 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 19:14:29,317 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 251 transitions. [2020-09-24 19:14:29,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2020-09-24 19:14:29,320 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:14:29,320 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] [2020-09-24 19:14:29,320 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 19:14:29,321 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:14:29,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:14:29,321 INFO L82 PathProgramCache]: Analyzing trace with hash -1441293719, now seen corresponding path program 1 times [2020-09-24 19:14:29,321 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:14:29,321 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [967861685] [2020-09-24 19:14:29,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:14:29,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:14:29,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:14:29,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:14:29,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:14:30,381 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:14:30,382 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 211 [2020-09-24 19:14:30,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 19:14:30,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1002 [2020-09-24 19:14:30,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:14:30,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:14:30,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 153 [2020-09-24 19:14:30,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-24 19:14:30,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:14:30,799 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:14:30,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:14:30,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:14:30,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:14:30,934 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:14:30,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 19:14:30,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:14:30,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 119 [2020-09-24 19:14:30,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:14:30,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:14:30,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:14:30,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:14:30,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:14:30,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 19:14:30,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:14:30,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:14:30,978 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:14:30,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:14:30,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:14:30,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:14:30,979 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:14:30,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:14:30,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:14:30,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:14:30,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:14:30,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 19:14:30,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:14:30,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:14:30,985 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:14:30,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:14:30,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:14:30,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:14:30,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:14:30,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:14:30,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:14:30,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:14:30,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:14:30,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 19:14:30,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:14:30,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:14:30,994 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:14:30,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:14:30,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:14:30,995 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:14:30,995 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:14:30,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:14:30,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:14:30,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:14:30,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:14:30,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 19:14:30,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:14:30,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:14:31,001 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:14:31,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:14:31,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:14:31,002 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:14:31,002 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:14:31,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:14:31,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:14:31,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:14:31,003 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:14:31,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 19:14:31,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:14:31,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:14:31,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:14:31,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:14:31,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:14:31,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:14:31,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:14:31,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:14:31,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:14:31,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:14:31,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:14:31,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 19:14:31,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:14:31,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:14:31,032 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:14:31,033 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:14:31,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:14:31,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:14:31,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:14:31,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:14:31,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:14:31,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-24 19:14:31,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:14:31,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 19:14:31,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:14:31,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:14:31,043 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:14:31,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 19:14:31,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:14:31,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:14:31,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:14:31,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:14:31,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:14:31,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 19:14:31,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:14:31,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:14:31,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:14:31,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:14:31,050 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:14:31,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:14:31,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:14:31,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:14:31,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:14:31,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:14:31,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:14:31,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:14:31,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:14:31,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2020-09-24 19:14:31,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:14:31,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:14:31,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:14:31,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:14:31,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:14:31,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:14:31,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:14:31,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:14:31,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:14:31,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:14:31,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:14:31,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2020-09-24 19:14:31,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:14:31,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:14:31,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:14:31,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:14:31,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:14:31,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:14:31,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:14:31,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:14:31,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:14:31,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:14:31,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:14:31,102 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 19:14:31,103 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [967861685] [2020-09-24 19:14:31,104 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:14:31,104 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 19:14:31,104 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958579279] [2020-09-24 19:14:31,107 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 19:14:31,107 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:14:31,107 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 19:14:31,108 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-24 19:14:31,109 INFO L87 Difference]: Start difference. First operand 234 states and 251 transitions. Second operand 6 states. [2020-09-24 19:14:31,675 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 19:14:32,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:14:32,554 INFO L93 Difference]: Finished difference Result 419 states and 483 transitions. [2020-09-24 19:14:32,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-24 19:14:32,554 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 174 [2020-09-24 19:14:32,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:14:32,558 INFO L225 Difference]: With dead ends: 419 [2020-09-24 19:14:32,558 INFO L226 Difference]: Without dead ends: 300 [2020-09-24 19:14:32,560 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-24 19:14:32,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2020-09-24 19:14:32,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 234. [2020-09-24 19:14:32,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 234 states. [2020-09-24 19:14:32,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 250 transitions. [2020-09-24 19:14:32,598 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 250 transitions. Word has length 174 [2020-09-24 19:14:32,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:14:32,599 INFO L479 AbstractCegarLoop]: Abstraction has 234 states and 250 transitions. [2020-09-24 19:14:32,599 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 19:14:32,599 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 250 transitions. [2020-09-24 19:14:32,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2020-09-24 19:14:32,602 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:14:32,602 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] [2020-09-24 19:14:32,603 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 19:14:32,603 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:14:32,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:14:32,603 INFO L82 PathProgramCache]: Analyzing trace with hash -2081588078, now seen corresponding path program 1 times [2020-09-24 19:14:32,604 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:14:32,625 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [402493630] [2020-09-24 19:14:32,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:14:32,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:14:32,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:14:32,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:14:33,707 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:14:33,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 223 [2020-09-24 19:14:33,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:14:33,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1018 [2020-09-24 19:14:33,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:14:33,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 19:14:33,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 175 [2020-09-24 19:14:33,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:14:33,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:14:34,003 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:14:34,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:14:34,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:14:34,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:14:34,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:14:34,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 19:14:34,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:14:34,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 118 [2020-09-24 19:14:34,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:14:34,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:14:34,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:14:34,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:14:34,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:14:34,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 19:14:34,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:14:34,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:14:34,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:14:34,173 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:14:34,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:14:34,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:14:34,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:14:34,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:14:34,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:14:34,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:14:34,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:14:34,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 19:14:34,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:14:34,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:14:34,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:14:34,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:14:34,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:14:34,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:14:34,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:14:34,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:14:34,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:14:34,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:14:34,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:14:34,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 19:14:34,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:14:34,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:14:34,188 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:14:34,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:14:34,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:14:34,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:14:34,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:14:34,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:14:34,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:14:34,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:14:34,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:14:34,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 19:14:34,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:14:34,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:14:34,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:14:34,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:14:34,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:14:34,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:14:34,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:14:34,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:14:34,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:14:34,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:14:34,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:14:34,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 19:14:34,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:14:34,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:14:34,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:14:34,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:14:34,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:14:34,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:14:34,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:14:34,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:14:34,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:14:34,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:14:34,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:14:34,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 19:14:34,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:14:34,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:14:34,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:14:34,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:14:34,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:14:34,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:14:34,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:14:34,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:14:34,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:14:34,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:14:34,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:14:34,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 19:14:34,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:14:34,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:14:34,231 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:14:34,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 19:14:34,231 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:14:34,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:14:34,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:14:34,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:14:34,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:14:34,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:14:34,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:14:34,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:14:34,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:14:34,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:14:34,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:14:34,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:14:34,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:14:34,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:14:34,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:14:34,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:14:34,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:14:34,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:14:34,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:14:34,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-24 19:14:34,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:14:34,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:14:34,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:14:34,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 19:14:34,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:14:34,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 19:14:34,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:14:34,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 19:14:34,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 19:14:34,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-24 19:14:34,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:14:34,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:14:34,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:14:34,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:14:34,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:14:34,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:14:34,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:14:34,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:14:34,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:14:34,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:14:34,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:14:34,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:14:34,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:14:34,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-09-24 19:14:34,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:14:34,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:14:34,289 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:14:34,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:14:34,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:14:34,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:14:34,290 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:14:34,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:14:34,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:14:34,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:14:34,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:14:34,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2020-09-24 19:14:34,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:14:34,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:14:34,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:14:34,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:14:34,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:14:34,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:14:34,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:14:34,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:14:34,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:14:34,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:14:34,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:14:34,346 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 19:14:34,347 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [402493630] [2020-09-24 19:14:34,347 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:14:34,347 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 19:14:34,348 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054312608] [2020-09-24 19:14:34,348 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 19:14:34,349 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:14:34,349 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 19:14:34,349 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-09-24 19:14:34,349 INFO L87 Difference]: Start difference. First operand 234 states and 250 transitions. Second operand 8 states. [2020-09-24 19:14:34,995 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 19:14:36,962 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 19:14:37,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:14:37,413 INFO L93 Difference]: Finished difference Result 599 states and 716 transitions. [2020-09-24 19:14:37,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-09-24 19:14:37,413 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 182 [2020-09-24 19:14:37,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:14:37,417 INFO L225 Difference]: With dead ends: 599 [2020-09-24 19:14:37,418 INFO L226 Difference]: Without dead ends: 480 [2020-09-24 19:14:37,424 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=140, Invalid=366, Unknown=0, NotChecked=0, Total=506 [2020-09-24 19:14:37,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 480 states. [2020-09-24 19:14:37,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 480 to 342. [2020-09-24 19:14:37,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 342 states. [2020-09-24 19:14:37,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 371 transitions. [2020-09-24 19:14:37,474 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 371 transitions. Word has length 182 [2020-09-24 19:14:37,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:14:37,475 INFO L479 AbstractCegarLoop]: Abstraction has 342 states and 371 transitions. [2020-09-24 19:14:37,475 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 19:14:37,475 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 371 transitions. [2020-09-24 19:14:37,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2020-09-24 19:14:37,478 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:14:37,479 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] [2020-09-24 19:14:37,479 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 19:14:37,479 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:14:37,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:14:37,480 INFO L82 PathProgramCache]: Analyzing trace with hash -489086187, now seen corresponding path program 1 times [2020-09-24 19:14:37,480 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:14:37,480 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [701988045] [2020-09-24 19:14:37,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:14:37,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:14:37,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:14:37,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:14:37,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:14:38,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:14:38,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 251 [2020-09-24 19:14:38,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 19:14:38,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1002 [2020-09-24 19:14:38,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:14:38,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:14:38,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 181 [2020-09-24 19:14:38,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-09-24 19:14:38,544 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:14:38,918 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:14:38,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:14:38,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:14:38,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:14:39,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:14:39,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 19:14:39,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:14:39,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-09-24 19:14:39,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:14:39,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:14:39,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:14:39,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:14:39,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:14:39,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 19:14:39,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:14:39,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:14:39,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:14:39,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:14:39,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:14:39,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:14:39,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:14:39,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:14:39,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:14:39,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:14:39,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:14:39,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 19:14:39,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:14:39,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:14:39,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:14:39,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:14:39,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:14:39,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:14:39,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:14:39,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:14:39,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:14:39,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:14:39,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:14:39,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 19:14:39,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:14:39,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:14:39,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:14:39,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:14:39,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:14:39,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:14:39,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:14:39,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:14:39,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:14:39,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:14:39,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:14:39,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 19:14:39,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:14:39,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:14:39,096 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:14:39,096 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:14:39,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:14:39,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:14:39,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:14:39,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:14:39,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:14:39,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:14:39,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:14:39,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 19:14:39,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:14:39,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:14:39,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:14:39,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:14:39,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:14:39,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:14:39,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:14:39,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:14:39,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:14:39,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:14:39,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:14:39,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 19:14:39,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:14:39,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:14:39,130 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:14:39,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:14:39,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:14:39,130 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:14:39,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:14:39,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:14:39,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:14:39,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:14:39,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:14:39,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 19:14:39,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:14:39,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:14:39,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:14:39,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 19:14:39,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:14:39,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:14:39,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:14:39,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:14:39,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:14:39,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:14:39,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:14:39,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:14:39,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:14:39,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:14:39,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:14:39,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:14:39,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:14:39,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:14:39,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:14:39,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:14:39,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:14:39,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:14:39,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:14:39,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-24 19:14:39,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:14:39,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:14:39,188 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:14:39,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-24 19:14:39,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:14:39,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-24 19:14:39,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:14:39,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:14:39,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:14:39,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 19:14:39,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:14:39,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:14:39,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:14:39,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:14:39,220 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:14:39,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 19:14:39,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:14:39,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-24 19:14:39,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:14:39,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:14:39,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:14:39,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-24 19:14:39,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:14:39,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:14:39,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:14:39,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:14:39,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:14:39,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:14:39,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:14:39,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:14:39,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:14:39,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:14:39,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:14:39,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:14:39,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:14:39,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 19:14:39,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:14:39,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:14:39,247 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:14:39,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:14:39,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:14:39,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 19:14:39,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:14:39,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:14:39,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:14:39,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:14:39,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:14:39,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2020-09-24 19:14:39,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:14:39,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:14:39,260 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:14:39,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:14:39,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:14:39,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:14:39,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:14:39,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:14:39,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:14:39,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:14:39,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:14:39,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2020-09-24 19:14:39,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:14:39,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:14:39,292 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:14:39,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:14:39,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:14:39,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-24 19:14:39,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:14:39,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:14:39,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:14:39,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:14:39,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:14:39,383 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 19:14:39,383 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [701988045] [2020-09-24 19:14:39,383 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:14:39,384 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-24 19:14:39,384 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209046016] [2020-09-24 19:14:39,385 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-24 19:14:39,385 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:14:39,386 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-24 19:14:39,386 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-09-24 19:14:39,386 INFO L87 Difference]: Start difference. First operand 342 states and 371 transitions. Second operand 11 states. [2020-09-24 19:14:40,074 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 19:14:41,116 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 19:14:41,456 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-24 19:14:42,448 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 19:14:42,852 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 19:14:43,272 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 19:14:43,915 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 19:14:44,208 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 19:14:44,519 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 19:14:44,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:14:44,985 INFO L93 Difference]: Finished difference Result 706 states and 833 transitions. [2020-09-24 19:14:44,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-09-24 19:14:44,987 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 206 [2020-09-24 19:14:44,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:14:44,992 INFO L225 Difference]: With dead ends: 706 [2020-09-24 19:14:44,992 INFO L226 Difference]: Without dead ends: 479 [2020-09-24 19:14:44,993 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 190 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=261, Invalid=669, Unknown=0, NotChecked=0, Total=930 [2020-09-24 19:14:44,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 479 states. [2020-09-24 19:14:45,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 479 to 341. [2020-09-24 19:14:45,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 341 states. [2020-09-24 19:14:45,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 368 transitions. [2020-09-24 19:14:45,042 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 368 transitions. Word has length 206 [2020-09-24 19:14:45,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:14:45,042 INFO L479 AbstractCegarLoop]: Abstraction has 341 states and 368 transitions. [2020-09-24 19:14:45,043 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-24 19:14:45,043 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 368 transitions. [2020-09-24 19:14:45,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2020-09-24 19:14:45,046 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:14:45,046 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] [2020-09-24 19:14:45,046 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 19:14:45,047 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:14:45,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:14:45,047 INFO L82 PathProgramCache]: Analyzing trace with hash 1682980522, now seen corresponding path program 1 times [2020-09-24 19:14:45,047 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:14:45,048 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1757287489] [2020-09-24 19:14:45,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:14:45,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:14:45,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:14:46,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:14:46,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 252 [2020-09-24 19:14:46,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:14:46,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 947 [2020-09-24 19:14:46,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:14:46,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:14:46,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 201 [2020-09-24 19:14:46,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 19:14:46,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:14:46,402 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:14:46,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:14:46,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:14:46,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:14:46,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:14:46,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 19:14:46,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:14:46,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 133 [2020-09-24 19:14:46,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:14:46,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:14:46,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:14:46,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:14:46,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:14:46,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 19:14:46,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:14:46,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:14:46,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:14:46,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:14:46,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:14:46,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:14:46,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:14:46,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:14:46,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:14:46,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:14:46,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:14:46,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 19:14:46,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:14:46,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:14:46,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:14:46,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:14:46,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:14:46,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:14:46,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:14:46,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:14:46,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:14:46,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:14:46,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:14:46,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 19:14:46,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:14:46,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:14:46,615 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:14:46,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:14:46,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:14:46,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:14:46,616 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:14:46,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:14:46,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:14:46,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:14:46,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:14:46,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 19:14:46,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:14:46,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:14:46,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:14:46,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:14:46,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:14:46,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:14:46,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:14:46,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:14:46,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:14:46,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:14:46,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:14:46,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 19:14:46,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:14:46,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:14:46,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:14:46,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:14:46,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:14:46,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:14:46,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:14:46,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:14:46,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:14:46,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:14:46,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:14:46,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 19:14:46,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:14:46,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:14:46,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:14:46,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:14:46,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:14:46,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:14:46,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:14:46,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:14:46,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:14:46,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:14:46,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:14:46,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 19:14:46,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:14:46,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:14:46,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:14:46,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 19:14:46,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:14:46,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:14:46,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:14:46,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:14:46,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:14:46,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:14:46,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:14:46,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:14:46,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:14:46,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:14:46,693 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:14:46,694 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:14:46,694 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:14:46,694 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:14:46,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:14:46,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:14:46,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:14:46,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:14:46,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:14:46,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-24 19:14:46,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:14:46,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:14:46,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:14:46,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 19:14:46,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:14:46,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-09-24 19:14:46,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:14:46,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:14:46,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-24 19:14:46,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 19:14:46,806 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 19:14:46,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:14:46,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:14:46,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:14:46,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:14:46,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 19:14:46,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:14:46,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-09-24 19:14:46,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:14:46,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:14:46,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:14:46,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-24 19:14:46,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:14:47,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:14:47,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:14:47,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:14:47,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:14:47,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:14:47,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:14:47,040 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:14:47,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:14:47,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:14:47,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:14:47,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:14:47,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:14:47,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 19:14:47,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:14:47,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:14:47,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:14:47,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:14:47,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:14:47,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:14:47,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:14:47,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:14:47,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 19:14:47,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:14:47,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:14:47,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2020-09-24 19:14:47,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:14:47,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:14:47,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:14:47,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:14:47,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:14:47,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:14:47,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:14:47,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:14:47,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:14:47,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:14:47,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:14:47,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2020-09-24 19:14:47,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:14:47,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:14:47,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:14:47,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:14:47,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:14:47,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:14:47,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:14:47,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:14:47,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:14:47,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:14:47,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:14:47,157 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 19:14:47,157 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1757287489] [2020-09-24 19:14:47,159 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:14:47,159 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-24 19:14:47,159 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735047387] [2020-09-24 19:14:47,160 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-24 19:14:47,161 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:14:47,161 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-24 19:14:47,162 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-09-24 19:14:47,162 INFO L87 Difference]: Start difference. First operand 341 states and 368 transitions. Second operand 11 states. [2020-09-24 19:14:48,739 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 19:14:49,051 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 19:14:49,372 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 19:14:49,685 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 19:14:50,028 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-24 19:14:50,348 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 19:14:51,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:14:51,237 INFO L93 Difference]: Finished difference Result 707 states and 832 transitions. [2020-09-24 19:14:51,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-24 19:14:51,237 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 207 [2020-09-24 19:14:51,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:14:51,241 INFO L225 Difference]: With dead ends: 707 [2020-09-24 19:14:51,241 INFO L226 Difference]: Without dead ends: 481 [2020-09-24 19:14:51,243 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2020-09-24 19:14:51,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2020-09-24 19:14:51,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 349. [2020-09-24 19:14:51,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 349 states. [2020-09-24 19:14:51,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 376 transitions. [2020-09-24 19:14:51,293 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 376 transitions. Word has length 207 [2020-09-24 19:14:51,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:14:51,294 INFO L479 AbstractCegarLoop]: Abstraction has 349 states and 376 transitions. [2020-09-24 19:14:51,294 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-24 19:14:51,294 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 376 transitions. [2020-09-24 19:14:51,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2020-09-24 19:14:51,297 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:14:51,297 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] [2020-09-24 19:14:51,298 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-24 19:14:51,298 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:14:51,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:14:51,299 INFO L82 PathProgramCache]: Analyzing trace with hash 543186698, now seen corresponding path program 1 times [2020-09-24 19:14:51,299 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:14:51,299 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [834687876] [2020-09-24 19:14:51,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:14:51,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:14:51,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:14:52,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:14:52,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 252 [2020-09-24 19:14:52,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:14:52,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 776 [2020-09-24 19:14:52,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:14:52,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:14:52,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 193 [2020-09-24 19:14:52,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:14:52,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:14:52,445 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:14:52,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:14:52,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:14:52,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:14:52,556 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:14:52,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 19:14:52,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:14:52,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 102 [2020-09-24 19:14:52,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:14:52,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:14:52,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:14:52,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:14:52,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:14:52,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 19:14:52,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:14:52,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:14:52,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:14:52,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:14:52,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:14:52,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:14:52,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:14:52,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:14:52,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:14:52,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:14:52,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:14:52,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 19:14:52,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:14:52,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:14:52,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:14:52,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:14:52,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:14:52,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:14:52,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:14:52,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:14:52,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:14:52,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:14:52,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:14:52,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 19:14:52,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:14:52,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:14:52,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:14:52,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:14:52,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:14:52,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:14:52,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:14:52,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:14:52,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:14:52,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:14:52,616 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:14:52,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 19:14:52,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:14:52,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:14:52,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:14:52,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:14:52,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:14:52,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:14:52,622 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:14:52,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:14:52,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:14:52,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:14:52,623 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:14:52,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 19:14:52,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:14:52,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:14:52,633 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:14:52,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:14:52,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:14:52,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:14:52,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:14:52,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:14:52,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:14:52,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:14:52,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:14:52,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 19:14:52,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:14:52,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:14:52,647 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:14:52,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:14:52,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:14:52,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:14:52,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:14:52,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:14:52,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:14:52,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:14:52,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:14:52,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 19:14:52,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:14:52,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:14:52,654 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:14:52,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 19:14:52,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:14:52,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:14:52,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:14:52,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:14:52,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:14:52,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:14:52,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:14:52,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:14:52,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:14:52,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:14:52,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:14:52,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:14:52,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:14:52,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:14:52,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:14:52,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:14:52,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:14:52,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:14:52,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:14:52,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-24 19:14:52,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:14:52,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:14:52,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:14:52,740 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 19:14:52,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:14:52,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-09-24 19:14:52,741 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:14:52,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:14:52,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 19:14:52,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:14:52,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:14:52,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:14:52,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:14:52,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:14:52,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:14:52,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 19:14:52,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:14:52,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-09-24 19:14:52,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:14:52,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:14:52,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 19:14:52,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:14:52,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:14:52,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:14:52,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:14:52,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:14:52,826 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:14:52,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:14:52,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:14:52,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 19:14:52,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:14:52,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 19:14:52,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:14:52,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:14:52,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:14:52,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 19:14:52,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:14:52,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:14:52,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:14:52,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:14:52,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:14:52,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:14:52,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:14:52,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:14:52,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 19:14:52,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:14:52,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:14:52,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2020-09-24 19:14:52,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:14:52,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:14:52,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:14:52,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:14:52,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:14:52,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:14:52,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:14:52,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:14:52,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:14:52,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:14:52,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:14:52,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2020-09-24 19:14:52,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:14:52,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:14:52,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:14:52,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:14:52,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:14:52,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:14:52,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:14:52,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:14:52,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:14:52,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:14:52,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:14:52,921 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 19:14:52,922 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [834687876] [2020-09-24 19:14:52,922 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:14:52,922 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 19:14:52,927 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510327774] [2020-09-24 19:14:52,928 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 19:14:52,928 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:14:52,928 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 19:14:52,929 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-09-24 19:14:52,929 INFO L87 Difference]: Start difference. First operand 349 states and 376 transitions. Second operand 10 states. [2020-09-24 19:14:54,271 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 19:14:54,586 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 19:14:54,890 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 19:14:55,188 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 19:14:55,474 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 19:14:56,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:14:56,463 INFO L93 Difference]: Finished difference Result 726 states and 862 transitions. [2020-09-24 19:14:56,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-24 19:14:56,464 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 207 [2020-09-24 19:14:56,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:14:56,474 INFO L225 Difference]: With dead ends: 726 [2020-09-24 19:14:56,475 INFO L226 Difference]: Without dead ends: 492 [2020-09-24 19:14:56,478 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2020-09-24 19:14:56,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 492 states. [2020-09-24 19:14:56,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 492 to 355. [2020-09-24 19:14:56,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 355 states. [2020-09-24 19:14:56,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 382 transitions. [2020-09-24 19:14:56,569 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 382 transitions. Word has length 207 [2020-09-24 19:14:56,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:14:56,569 INFO L479 AbstractCegarLoop]: Abstraction has 355 states and 382 transitions. [2020-09-24 19:14:56,570 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 19:14:56,570 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 382 transitions. [2020-09-24 19:14:56,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2020-09-24 19:14:56,576 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:14:56,576 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] [2020-09-24 19:14:56,576 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-24 19:14:56,577 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:14:56,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:14:56,577 INFO L82 PathProgramCache]: Analyzing trace with hash -1587935993, now seen corresponding path program 1 times [2020-09-24 19:14:56,577 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:14:56,578 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1859041824] [2020-09-24 19:14:56,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:14:56,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:14:56,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:14:57,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:14:57,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 252 [2020-09-24 19:14:57,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:14:57,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1050 [2020-09-24 19:14:57,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:14:57,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-24 19:14:57,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-24 19:14:57,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 115 [2020-09-24 19:14:57,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:14:58,025 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:14:58,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:14:58,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:14:58,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:14:58,296 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:14:58,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 19:14:58,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:14:58,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 240 [2020-09-24 19:14:58,297 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:14:58,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:14:58,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:14:58,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-24 19:14:58,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:14:58,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 19:14:58,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:14:58,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:14:58,347 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:14:58,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:14:58,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:14:58,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:14:58,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:14:58,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:14:58,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:14:58,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:14:58,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:14:58,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 19:14:58,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:14:58,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:14:58,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:14:58,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:14:58,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:14:58,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:14:58,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:14:58,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:14:58,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:14:58,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:14:58,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:14:58,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 19:14:58,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:14:58,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:14:58,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:14:58,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:14:58,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:14:58,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-24 19:14:58,380 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:14:58,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:14:58,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:14:58,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:14:58,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:14:58,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 19:14:58,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:14:58,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:14:58,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:14:58,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:14:58,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:14:58,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:14:58,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:14:58,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:14:58,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:14:58,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:14:58,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:14:58,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 19:14:58,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:14:58,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:14:58,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:14:58,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:14:58,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:14:58,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:14:58,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:14:58,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:14:58,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:14:58,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 19:14:58,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:14:58,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 19:14:58,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:14:58,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:14:58,429 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:14:58,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:14:58,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:14:58,430 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 19:14:58,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:14:58,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:14:58,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:14:58,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 19:14:58,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:14:58,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 19:14:58,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:14:58,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:14:58,441 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:14:58,441 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 19:14:58,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:14:58,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:14:58,442 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:14:58,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:14:58,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:14:58,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 19:14:58,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:14:58,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:14:58,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:14:58,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:14:58,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:14:58,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:14:58,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:14:58,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:14:58,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:14:58,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:14:58,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:14:58,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:14:58,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:14:58,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-24 19:14:58,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:14:58,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:14:58,496 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:14:58,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 19:14:58,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:14:58,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-24 19:14:58,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:14:58,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:14:58,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-09-24 19:14:58,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-09-24 19:14:58,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:14:58,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:14:58,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:14:58,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:14:58,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:14:58,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 19:14:58,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:14:58,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-24 19:14:58,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:14:58,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:14:58,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:14:58,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 19:14:58,535 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:14:58,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:14:58,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:14:58,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:14:58,544 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:14:58,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:14:58,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:14:58,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:14:58,545 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:14:58,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:14:58,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:14:58,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 19:14:58,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:14:58,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 19:14:58,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:14:58,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:14:58,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:14:58,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:14:58,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:14:58,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 19:14:58,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:14:58,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:14:58,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:14:58,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 19:14:58,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:14:58,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2020-09-24 19:14:58,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:14:58,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:14:58,565 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:14:58,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:14:58,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:14:58,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:14:58,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:14:58,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:14:58,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:14:58,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:14:58,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:14:58,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2020-09-24 19:14:58,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:14:58,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:14:58,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:14:58,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:14:58,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:14:58,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:14:58,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:14:58,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:14:58,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:14:58,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:14:58,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:14:58,620 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 19:14:58,621 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1859041824] [2020-09-24 19:14:58,622 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:14:58,622 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 19:14:58,622 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886983379] [2020-09-24 19:14:58,623 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 19:14:58,623 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:14:58,623 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 19:14:58,623 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-09-24 19:14:58,624 INFO L87 Difference]: Start difference. First operand 355 states and 382 transitions. Second operand 8 states. [2020-09-24 19:14:59,210 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 19:15:00,422 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 19:15:02,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:15:02,655 INFO L93 Difference]: Finished difference Result 1170 states and 1455 transitions. [2020-09-24 19:15:02,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-09-24 19:15:02,656 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 207 [2020-09-24 19:15:02,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:15:02,663 INFO L225 Difference]: With dead ends: 1170 [2020-09-24 19:15:02,663 INFO L226 Difference]: Without dead ends: 930 [2020-09-24 19:15:02,664 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 151 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=160, Invalid=490, Unknown=0, NotChecked=0, Total=650 [2020-09-24 19:15:02,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 930 states. [2020-09-24 19:15:02,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 930 to 631. [2020-09-24 19:15:02,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 631 states. [2020-09-24 19:15:02,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 631 states to 631 states and 705 transitions. [2020-09-24 19:15:02,751 INFO L78 Accepts]: Start accepts. Automaton has 631 states and 705 transitions. Word has length 207 [2020-09-24 19:15:02,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:15:02,751 INFO L479 AbstractCegarLoop]: Abstraction has 631 states and 705 transitions. [2020-09-24 19:15:02,751 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 19:15:02,751 INFO L276 IsEmpty]: Start isEmpty. Operand 631 states and 705 transitions. [2020-09-24 19:15:02,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2020-09-24 19:15:02,753 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:15:02,754 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 19:15:02,754 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-24 19:15:02,754 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:15:02,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:15:02,755 INFO L82 PathProgramCache]: Analyzing trace with hash 445785641, now seen corresponding path program 1 times [2020-09-24 19:15:02,755 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:15:02,755 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [885927345] [2020-09-24 19:15:02,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:15:02,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:02,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:03,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:03,834 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:03,834 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 259 [2020-09-24 19:15:03,834 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:15:03,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1016 [2020-09-24 19:15:03,835 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:03,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-24 19:15:03,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 145 [2020-09-24 19:15:03,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-09-24 19:15:03,836 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:04,176 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:15:04,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:15:04,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:04,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:04,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:04,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 19:15:04,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:04,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-09-24 19:15:04,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:04,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:04,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:04,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:04,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:04,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 19:15:04,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:04,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:04,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:04,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:15:04,322 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:04,322 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:15:04,322 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:04,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:04,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:04,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:04,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:04,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 19:15:04,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:04,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:04,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:04,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:15:04,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:04,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:15:04,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:04,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:04,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:04,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:04,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:04,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 19:15:04,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:04,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:04,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:04,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:15:04,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:04,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:15:04,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:04,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:04,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:04,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:04,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:04,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 19:15:04,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:04,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:04,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:04,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:15:04,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:04,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:15:04,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:04,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:04,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:04,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:04,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:04,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 19:15:04,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:04,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:04,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:04,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:15:04,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:04,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:15:04,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:04,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:04,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:04,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:04,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:04,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 19:15:04,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:04,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:04,382 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:04,382 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 19:15:04,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:04,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 19:15:04,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:04,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 19:15:04,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:04,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 19:15:04,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:04,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 19:15:04,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:04,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:04,418 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:04,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:15:04,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:04,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:15:04,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:04,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:15:04,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:04,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 19:15:04,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:04,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-24 19:15:04,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:04,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:04,430 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:04,430 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 19:15:04,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:04,430 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:15:04,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:04,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:15:04,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:04,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 19:15:04,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:04,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:15:04,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:04,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:04,437 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:04,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:15:04,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:04,438 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:15:04,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:04,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:04,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:04,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:04,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:04,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-09-24 19:15:04,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:04,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:04,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:04,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 19:15:04,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:04,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-09-24 19:15:04,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:04,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 19:15:04,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:04,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-09-24 19:15:04,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:04,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:15:04,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:04,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:04,536 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:04,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 19:15:04,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:04,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 19:15:04,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:04,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:15:04,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:04,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 19:15:04,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:04,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:15:04,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:04,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:04,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:04,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:15:04,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:04,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:15:04,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:04,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:15:04,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:04,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 19:15:04,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:04,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 19:15:04,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:04,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:04,559 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:04,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:15:04,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:04,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:15:04,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:04,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:15:04,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:04,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 19:15:04,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:04,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2020-09-24 19:15:04,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:04,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:04,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:04,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:15:04,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:04,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 19:15:04,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:04,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:15:04,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:04,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:15:04,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:04,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-09-24 19:15:04,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:04,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:04,615 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:04,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:15:04,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:04,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:15:04,616 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:04,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:04,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:15:04,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:04,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:04,661 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 19:15:04,661 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [885927345] [2020-09-24 19:15:04,661 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:15:04,662 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-09-24 19:15:04,662 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671880268] [2020-09-24 19:15:04,662 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-09-24 19:15:04,663 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:15:04,663 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-09-24 19:15:04,663 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2020-09-24 19:15:04,663 INFO L87 Difference]: Start difference. First operand 631 states and 705 transitions. Second operand 15 states. [2020-09-24 19:15:05,311 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 19:15:06,280 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 19:15:07,269 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 19:15:08,107 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 19:15:08,435 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-24 19:15:08,802 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 19:15:09,130 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-24 19:15:09,408 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 19:15:09,689 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 19:15:10,024 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 19:15:10,336 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 191