/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.2 --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_product39.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 04:13:41,306 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 04:13:41,310 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 04:13:41,336 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 04:13:41,336 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 04:13:41,338 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 04:13:41,339 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 04:13:41,341 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 04:13:41,343 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 04:13:41,344 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 04:13:41,345 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 04:13:41,346 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 04:13:41,347 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 04:13:41,348 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 04:13:41,349 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 04:13:41,351 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 04:13:41,355 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 04:13:41,356 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 04:13:41,358 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 04:13:41,364 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 04:13:41,365 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 04:13:41,367 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 04:13:41,368 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 04:13:41,369 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 04:13:41,375 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 04:13:41,375 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 04:13:41,375 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 04:13:41,376 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 04:13:41,377 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 04:13:41,378 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 04:13:41,378 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 04:13:41,379 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 04:13:41,380 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 04:13:41,381 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 04:13:41,382 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 04:13:41,383 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 04:13:41,383 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 04:13:41,384 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 04:13:41,384 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 04:13:41,385 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 04:13:41,386 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 04:13:41,387 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 04:13:41,413 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 04:13:41,414 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 04:13:41,415 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 04:13:41,415 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 04:13:41,415 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 04:13:41,416 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 04:13:41,416 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 04:13:41,416 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 04:13:41,416 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 04:13:41,416 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 04:13:41,417 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 04:13:41,417 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 04:13:41,417 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 04:13:41,417 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 04:13:41,418 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 04:13:41,418 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 04:13:41,418 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 04:13:41,418 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 04:13:41,418 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 04:13:41,419 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 04:13:41,419 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 04:13:41,419 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 04:13:41,419 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 04:13:41,419 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 04:13:41,420 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 04:13:41,420 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 04:13:41,420 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 04:13:41,420 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 04:13:41,420 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 04:13:41,421 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; [2020-09-25 04:13:41,881 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 04:13:41,905 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 04:13:41,910 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 04:13:41,911 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 04:13:41,913 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 04:13:41,914 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product39.cil.c [2020-09-25 04:13:42,006 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6fb04a035/4f89e1b59b2e4f5db884fc642a81fb5b/FLAG544ff3e05 [2020-09-25 04:13:42,597 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 04:13:42,598 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec5_product39.cil.c [2020-09-25 04:13:42,623 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6fb04a035/4f89e1b59b2e4f5db884fc642a81fb5b/FLAG544ff3e05 [2020-09-25 04:13:42,892 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6fb04a035/4f89e1b59b2e4f5db884fc642a81fb5b [2020-09-25 04:13:42,904 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 04:13:42,910 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 04:13:42,911 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 04:13:42,911 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 04:13:42,918 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 04:13:42,919 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 04:13:42" (1/1) ... [2020-09-25 04:13:42,923 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3cc704b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:13:42, skipping insertion in model container [2020-09-25 04:13:42,923 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 04:13:42" (1/1) ... [2020-09-25 04:13:42,934 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 04:13:42,990 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 04:13:43,524 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 04:13:43,541 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 04:13:43,654 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 04:13:43,704 INFO L208 MainTranslator]: Completed translation [2020-09-25 04:13:43,704 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:13:43 WrapperNode [2020-09-25 04:13:43,704 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 04:13:43,705 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 04:13:43,705 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 04:13:43,705 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 04:13:43,719 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:13:43" (1/1) ... [2020-09-25 04:13:43,719 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:13:43" (1/1) ... [2020-09-25 04:13:43,741 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:13:43" (1/1) ... [2020-09-25 04:13:43,741 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:13:43" (1/1) ... [2020-09-25 04:13:43,775 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:13:43" (1/1) ... [2020-09-25 04:13:43,788 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:13:43" (1/1) ... [2020-09-25 04:13:43,793 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:13:43" (1/1) ... [2020-09-25 04:13:43,801 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 04:13:43,802 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 04:13:43,802 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 04:13:43,802 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 04:13:43,804 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:13:43" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 04:13:43,884 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 04:13:43,885 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 04:13:43,885 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 04:13:43,885 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 04:13:43,885 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 04:13:43,886 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 04:13:43,886 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 04:13:43,886 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 04:13:43,886 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 04:13:43,886 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 04:13:43,886 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 04:13:43,887 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 04:13:43,887 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 04:13:43,887 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 04:13:43,887 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 04:13:43,887 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 04:13:43,888 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 04:13:43,888 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 04:13:43,888 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 04:13:43,888 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 04:13:43,889 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 04:13:43,889 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 04:13:43,889 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 04:13:43,889 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 04:13:43,889 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 04:13:43,889 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2020-09-25 04:13:43,890 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2020-09-25 04:13:43,890 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2020-09-25 04:13:43,890 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 04:13:43,890 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 04:13:43,890 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 04:13:43,891 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 04:13:43,891 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 04:13:43,891 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 04:13:43,891 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 04:13:43,891 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 04:13:43,891 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 04:13:43,891 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 04:13:43,892 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 04:13:43,892 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 04:13:43,892 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 04:13:43,892 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 04:13:43,892 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 04:13:43,892 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 04:13:43,893 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 04:13:43,893 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 04:13:43,893 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 04:13:43,893 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 04:13:43,893 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 04:13:43,893 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 04:13:43,894 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 04:13:43,894 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 04:13:43,894 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 04:13:43,894 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 04:13:43,894 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 04:13:43,894 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 04:13:43,895 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 04:13:43,895 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 04:13:43,895 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 04:13:43,895 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2020-09-25 04:13:43,895 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2020-09-25 04:13:43,895 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 04:13:43,895 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 04:13:43,896 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 04:13:43,896 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 04:13:43,896 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 04:13:43,896 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 04:13:43,896 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 04:13:43,896 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 04:13:43,897 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 04:13:43,897 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 04:13:43,897 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 04:13:43,897 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2020-09-25 04:13:43,897 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 04:13:43,897 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 04:13:43,898 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 04:13:43,898 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 04:13:43,898 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 04:13:43,898 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 04:13:43,898 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 04:13:43,898 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 04:13:43,899 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 04:13:43,899 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 04:13:43,899 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 04:13:43,899 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 04:13:43,899 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 04:13:43,899 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 04:13:43,900 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 04:13:43,900 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 04:13:43,900 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 04:13:43,900 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 04:13:43,900 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 04:13:43,900 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 04:13:43,900 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 04:13:43,901 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 04:13:43,901 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 04:13:45,060 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 04:13:45,060 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 04:13:45,068 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 04:13:45 BoogieIcfgContainer [2020-09-25 04:13:45,068 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 04:13:45,070 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 04:13:45,070 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 04:13:45,073 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 04:13:45,074 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 04:13:42" (1/3) ... [2020-09-25 04:13:45,075 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73a955d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 04:13:45, skipping insertion in model container [2020-09-25 04:13:45,075 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:13:43" (2/3) ... [2020-09-25 04:13:45,075 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73a955d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 04:13:45, skipping insertion in model container [2020-09-25 04:13:45,076 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 04:13:45" (3/3) ... [2020-09-25 04:13:45,078 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product39.cil.c [2020-09-25 04:13:45,091 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 04:13:45,104 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 04:13:45,130 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 04:13:45,163 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 04:13:45,164 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 04:13:45,164 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 04:13:45,164 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 04:13:45,164 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 04:13:45,164 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 04:13:45,164 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 04:13:45,165 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 04:13:45,195 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states. [2020-09-25 04:13:45,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-09-25 04:13:45,214 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:13:45,216 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] [2020-09-25 04:13:45,217 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:13:45,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:13:45,226 INFO L82 PathProgramCache]: Analyzing trace with hash 938593778, now seen corresponding path program 1 times [2020-09-25 04:13:45,239 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:13:45,240 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [701697734] [2020-09-25 04:13:45,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:13:45,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:13:45,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:13:45,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:13:47,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:13:47,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:13:50,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:13:50,632 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:13:50,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 197 [2020-09-25 04:13:50,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 04:13:50,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5033 [2020-09-25 04:13:50,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:13:50,640 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:13:50,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:13:50,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-09-25 04:13:50,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:13:50,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 15 [2020-09-25 04:13:51,110 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 04:13:51,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:13:51,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:13:51,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:13:51,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:13:51,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 04:13:51,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:13:51,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 139 [2020-09-25 04:13:51,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:13:51,272 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:13:51,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:13:51,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:13:51,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:13:51,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:13:51,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 04:13:51,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:13:51,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:13:51,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:13:51,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:13:51,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:13:51,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:13:51,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:13:51,350 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:13:51,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:13:51,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:13:51,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:13:51,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:13:51,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 04:13:51,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:13:51,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:13:51,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:13:51,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:13:51,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:13:51,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:13:51,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:13:51,359 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:13:51,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:13:51,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:13:51,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:13:51,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:13:51,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 04:13:51,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:13:51,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:13:51,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:13:51,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:13:51,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:13:51,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 04:13:51,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:13:51,370 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:13:51,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:13:51,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:13:51,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:13:51,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:13:51,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 04:13:51,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:13:51,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:13:51,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:13:51,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:13:51,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:13:51,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:13:51,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:13:51,378 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:13:51,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:13:51,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:13:51,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:13:51,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:13:51,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 04:13:51,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:13:51,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:13:51,395 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:13:51,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 04:13:51,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:13:51,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:13:51,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:13:51,397 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:13:51,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:13:51,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:13:51,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:13:51,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 04:13:51,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 04:13:51,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:13:51,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:13:51,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:13:51,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 04:13:51,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:13:51,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 04:13:51,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:13:51,411 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:13:51,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:13:51,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 04:13:51,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:13:51,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:13:51,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:13:51,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:13:51,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:13:51,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:13:51,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:13:51,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:13:51,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:13:51,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:13:51,422 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:13:51,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:13:51,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:13:51,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:13:51,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 04:13:51,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-25 04:13:51,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:13:51,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:13:51,432 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:13:51,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:13:51,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:13:51,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:13:51,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:13:51,434 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:13:51,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:13:51,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:13:51,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:13:51,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:13:51,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-25 04:13:51,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:13:51,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:13:51,442 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:13:51,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:13:51,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:13:51,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:13:51,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:13:51,444 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:13:51,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:13:51,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:13:51,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:13:51,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:13:51,492 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 04:13:51,493 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [701697734] [2020-09-25 04:13:51,495 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:13:51,498 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 04:13:51,499 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209487537] [2020-09-25 04:13:51,508 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 04:13:51,508 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:13:51,527 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 04:13:51,528 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-25 04:13:51,532 INFO L87 Difference]: Start difference. First operand 325 states. Second operand 4 states. [2020-09-25 04:13:53,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:13:53,075 INFO L93 Difference]: Finished difference Result 510 states and 600 transitions. [2020-09-25 04:13:53,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 04:13:53,078 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 160 [2020-09-25 04:13:53,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:13:53,099 INFO L225 Difference]: With dead ends: 510 [2020-09-25 04:13:53,099 INFO L226 Difference]: Without dead ends: 321 [2020-09-25 04:13:53,106 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-25 04:13:53,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2020-09-25 04:13:53,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 274. [2020-09-25 04:13:53,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 274 states. [2020-09-25 04:13:53,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 299 transitions. [2020-09-25 04:13:53,250 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 299 transitions. Word has length 160 [2020-09-25 04:13:53,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:13:53,253 INFO L479 AbstractCegarLoop]: Abstraction has 274 states and 299 transitions. [2020-09-25 04:13:53,253 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 04:13:53,253 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 299 transitions. [2020-09-25 04:13:53,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-25 04:13:53,270 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:13:53,270 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] [2020-09-25 04:13:53,272 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 04:13:53,273 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:13:53,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:13:53,273 INFO L82 PathProgramCache]: Analyzing trace with hash 1609710943, now seen corresponding path program 1 times [2020-09-25 04:13:53,273 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:13:53,274 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [164171921] [2020-09-25 04:13:53,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:13:53,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:13:53,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:13:53,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:13:55,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:13:55,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:13:56,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:13:58,366 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:13:58,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 198 [2020-09-25 04:13:58,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 04:13:58,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5023 [2020-09-25 04:13:58,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:13:58,368 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:13:58,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:13:58,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-09-25 04:13:58,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 04:13:58,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:13:58,678 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 04:13:58,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:13:58,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:13:58,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:13:58,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:13:58,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 04:13:58,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:13:58,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 158 [2020-09-25 04:13:58,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:13:58,851 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:13:58,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:13:58,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:13:58,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:13:58,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:13:58,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 04:13:58,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:13:58,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:13:58,888 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:13:58,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:13:58,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:13:58,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:13:58,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:13:58,890 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:13:58,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:13:58,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:13:58,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:13:58,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:13:58,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 04:13:58,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:13:58,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:13:58,895 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:13:58,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:13:58,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:13:58,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:13:58,896 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:13:58,896 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:13:58,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:13:58,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:13:58,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:13:58,897 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:13:58,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 04:13:58,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:13:58,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:13:58,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:13:58,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:13:58,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:13:58,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:13:58,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:13:58,905 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:13:58,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:13:58,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:13:58,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:13:58,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:13:58,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 04:13:58,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:13:58,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:13:58,913 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:13:58,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:13:58,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:13:58,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:13:58,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:13:58,914 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:13:58,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:13:58,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:13:58,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:13:58,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 04:13:58,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 04:13:58,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:13:58,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:13:58,927 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:13:58,929 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 04:13:58,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:13:58,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:13:58,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:13:58,930 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:13:58,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:13:58,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:13:58,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:13:58,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 04:13:58,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 04:13:58,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:13:58,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:13:58,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:13:58,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 04:13:58,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:13:58,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:13:58,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:13:58,941 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:13:58,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:13:58,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 04:13:58,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:13:58,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:13:58,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:13:58,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:13:58,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:13:58,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:13:58,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:13:58,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:13:58,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:13:58,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:13:58,948 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:13:58,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:13:58,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:13:58,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:13:58,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:13:58,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-09-25 04:13:58,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:13:58,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:13:58,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:13:58,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:13:58,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:13:58,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:13:58,955 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:13:58,955 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:13:58,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:13:58,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:13:58,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:13:58,956 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:13:58,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-25 04:13:58,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:13:58,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:13:58,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:13:58,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:13:58,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:13:58,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:13:58,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:13:58,963 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:13:58,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:13:58,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:13:58,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:13:58,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:13:58,991 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 04:13:58,992 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [164171921] [2020-09-25 04:13:58,992 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:13:58,992 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 04:13:58,992 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792429731] [2020-09-25 04:13:58,994 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 04:13:58,998 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:13:58,998 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 04:13:58,998 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 04:13:58,999 INFO L87 Difference]: Start difference. First operand 274 states and 299 transitions. Second operand 5 states. [2020-09-25 04:13:59,604 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 04:14:00,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:14:00,780 INFO L93 Difference]: Finished difference Result 433 states and 488 transitions. [2020-09-25 04:14:00,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 04:14:00,781 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 161 [2020-09-25 04:14:00,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:14:00,785 INFO L225 Difference]: With dead ends: 433 [2020-09-25 04:14:00,786 INFO L226 Difference]: Without dead ends: 310 [2020-09-25 04:14:00,787 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 04:14:00,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2020-09-25 04:14:00,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 264. [2020-09-25 04:14:00,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 264 states. [2020-09-25 04:14:00,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 286 transitions. [2020-09-25 04:14:00,836 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 286 transitions. Word has length 161 [2020-09-25 04:14:00,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:14:00,836 INFO L479 AbstractCegarLoop]: Abstraction has 264 states and 286 transitions. [2020-09-25 04:14:00,836 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 04:14:00,837 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 286 transitions. [2020-09-25 04:14:00,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2020-09-25 04:14:00,839 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:14:00,839 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:14:00,840 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 04:14:00,840 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:14:00,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:14:00,840 INFO L82 PathProgramCache]: Analyzing trace with hash 1288155326, now seen corresponding path program 1 times [2020-09-25 04:14:00,840 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:14:00,841 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1357255095] [2020-09-25 04:14:00,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:14:00,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:14:00,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:14:01,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:14:01,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:14:03,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:14:05,909 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:14:05,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 205 [2020-09-25 04:14:05,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 04:14:05,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5016 [2020-09-25 04:14:05,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:14:05,913 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:14:05,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 04:14:05,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 169 [2020-09-25 04:14:05,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-25 04:14:05,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:14:06,272 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 04:14:06,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:14:06,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:14:06,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:14:06,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:14:06,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 04:14:06,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:14:06,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 111 [2020-09-25 04:14:06,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:14:06,392 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:14:06,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:14:06,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:14:06,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:14:06,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:14:06,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 04:14:06,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:14:06,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:14:06,440 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:14:06,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:14:06,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:14:06,441 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:14:06,441 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:14:06,441 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:14:06,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:14:06,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:14:06,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:14:06,442 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:14:06,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 04:14:06,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:14:06,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:14:06,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:14:06,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:14:06,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:14:06,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:14:06,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:14:06,447 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:14:06,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:14:06,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:14:06,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:14:06,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:14:06,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 04:14:06,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:14:06,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:14:06,454 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:14:06,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:14:06,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:14:06,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:14:06,455 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:14:06,456 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:14:06,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:14:06,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:14:06,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:14:06,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:14:06,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 04:14:06,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:14:06,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:14:06,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:14:06,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:14:06,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:14:06,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:14:06,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:14:06,463 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:14:06,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:14:06,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:14:06,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:14:06,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:14:06,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 04:14:06,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:14:06,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:14:06,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:14:06,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 04:14:06,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:14:06,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:14:06,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:14:06,479 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:14:06,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:14:06,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:14:06,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:14:06,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:14:06,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 04:14:06,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:14:06,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:14:06,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:14:06,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 04:14:06,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:14:06,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:14:06,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:14:06,487 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:14:06,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:14:06,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:14:06,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:14:06,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:14:06,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:14:06,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:14:06,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:14:06,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:14:06,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:14:06,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:14:06,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:14:06,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:14:06,495 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:14:06,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:14:06,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:14:06,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:14:06,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:14:06,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-25 04:14:06,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:14:06,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:14:06,502 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:14:06,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:14:06,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:14:06,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:14:06,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:14:06,503 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:14:06,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:14:06,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:14:06,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 04:14:06,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:14:06,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-09-25 04:14:06,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:14:06,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:14:06,515 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:14:06,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:14:06,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:14:06,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 04:14:06,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:14:06,516 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:14:06,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 04:14:06,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:14:06,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 04:14:06,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:14:06,572 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-25 04:14:06,573 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1357255095] [2020-09-25 04:14:06,573 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:14:06,574 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 04:14:06,574 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287201367] [2020-09-25 04:14:06,575 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 04:14:06,575 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:14:06,575 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 04:14:06,577 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 04:14:06,577 INFO L87 Difference]: Start difference. First operand 264 states and 286 transitions. Second operand 9 states. [2020-09-25 04:14:07,141 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 04:14:08,045 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 04:14:08,379 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 04:14:09,489 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 04:14:09,822 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 04:14:10,173 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 04:14:10,758 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 04:14:11,083 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 04:14:11,404 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 04:14:11,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:14:11,941 INFO L93 Difference]: Finished difference Result 546 states and 637 transitions. [2020-09-25 04:14:11,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 04:14:11,942 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 170 [2020-09-25 04:14:11,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:14:11,947 INFO L225 Difference]: With dead ends: 546 [2020-09-25 04:14:11,947 INFO L226 Difference]: Without dead ends: 397 [2020-09-25 04:14:11,948 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-09-25 04:14:11,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397 states. [2020-09-25 04:14:11,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 349. [2020-09-25 04:14:11,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 349 states. [2020-09-25 04:14:12,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 385 transitions. [2020-09-25 04:14:12,001 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 385 transitions. Word has length 170 [2020-09-25 04:14:12,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:14:12,002 INFO L479 AbstractCegarLoop]: Abstraction has 349 states and 385 transitions. [2020-09-25 04:14:12,002 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 04:14:12,002 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 385 transitions. [2020-09-25 04:14:12,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2020-09-25 04:14:12,005 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:14:12,005 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] [2020-09-25 04:14:12,006 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 04:14:12,006 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:14:12,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:14:12,006 INFO L82 PathProgramCache]: Analyzing trace with hash -1165066921, now seen corresponding path program 1 times [2020-09-25 04:14:12,007 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:14:12,007 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1762661656] [2020-09-25 04:14:12,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:14:12,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:14:12,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:14:12,909 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:14:12,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 253 [2020-09-25 04:14:12,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:14:12,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 843 [2020-09-25 04:14:12,910 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:14:12,910 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:14:12,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 04:14:12,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 200 [2020-09-25 04:14:12,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 04:14:12,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:14:13,200 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 04:14:13,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:14:13,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:14:13,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:14:13,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:14:13,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 04:14:13,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:14:13,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-09-25 04:14:13,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:14:13,304 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:14:13,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:14:13,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:14:13,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:14:13,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:14:13,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 04:14:13,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:14:13,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:14:13,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:14:13,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:14:13,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:14:13,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:14:13,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:14:13,339 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:14:13,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:14:13,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:14:13,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:14:13,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:14:13,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 04:14:13,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:14:13,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:14:13,344 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:14:13,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:14:13,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:14:13,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:14:13,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:14:13,345 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:14:13,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:14:13,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:14:13,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:14:13,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:14:13,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 04:14:13,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:14:13,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:14:13,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:14:13,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:14:13,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:14:13,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:14:13,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:14:13,352 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:14:13,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:14:13,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:14:13,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:14:13,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:14:13,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 04:14:13,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:14:13,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:14:13,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:14:13,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:14:13,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:14:13,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:14:13,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:14:13,359 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:14:13,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:14:13,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:14:13,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:14:13,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:14:13,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 04:14:13,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:14:13,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:14:13,375 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:14:13,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 04:14:13,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:14:13,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:14:13,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:14:13,376 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:14:13,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:14:13,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:14:13,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:14:13,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:14:13,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 04:14:13,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:14:13,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:14:13,382 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:14:13,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 04:14:13,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:14:13,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:14:13,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:14:13,384 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:14:13,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:14:13,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:14:13,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:14:13,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:14:13,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:14:13,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:14:13,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:14:13,390 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:14:13,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:14:13,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:14:13,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:14:13,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:14:13,391 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:14:13,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:14:13,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:14:13,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:14:13,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:14:13,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 04:14:13,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:14:13,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:14:13,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:14:13,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 04:14:13,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:14:13,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-09-25 04:14:13,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:14:13,479 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:14:13,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 04:14:13,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-25 04:14:13,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 04:14:13,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:14:13,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:14:13,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:14:13,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:14:13,557 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:14:13,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 04:14:13,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:14:13,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-09-25 04:14:13,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:14:13,558 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:14:13,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 04:14:13,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-25 04:14:13,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 04:14:13,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:14:13,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:14:13,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:14:13,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:14:13,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:14:13,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 04:14:13,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:14:13,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-09-25 04:14:13,689 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:14:13,689 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:14:13,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 04:14:13,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:14:13,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 04:14:13,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:14:13,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 04:14:13,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:14:13,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:14:13,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:14:13,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 04:14:13,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:14:13,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:14:13,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:14:13,739 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:14:13,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:14:13,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:14:13,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:14:13,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:14:13,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 04:14:13,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:14:13,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:14:13,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:14:13,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 04:14:13,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:14:13,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:14:13,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:14:13,747 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:14:13,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:14:13,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-25 04:14:13,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:14:13,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:14:13,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2020-09-25 04:14:13,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:14:13,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:14:13,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:14:13,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:14:13,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:14:13,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:14:13,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:14:13,756 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:14:13,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:14:13,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:14:13,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:14:13,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:14:13,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2020-09-25 04:14:13,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:14:13,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:14:13,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:14:13,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:14:13,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:14:13,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:14:13,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:14:13,762 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:14:13,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:14:13,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:14:13,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:14:13,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:14:13,807 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 04:14:13,807 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1762661656] [2020-09-25 04:14:13,807 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:14:13,808 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 04:14:13,808 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964200569] [2020-09-25 04:14:13,808 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 04:14:13,809 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:14:13,809 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 04:14:13,809 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 04:14:13,809 INFO L87 Difference]: Start difference. First operand 349 states and 385 transitions. Second operand 10 states. [2020-09-25 04:14:15,448 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 04:14:15,769 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 04:14:16,059 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 04:14:16,400 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 04:14:16,740 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-25 04:14:17,056 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 04:14:17,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:14:17,946 INFO L93 Difference]: Finished difference Result 665 states and 776 transitions. [2020-09-25 04:14:17,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 04:14:17,949 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 208 [2020-09-25 04:14:17,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:14:17,953 INFO L225 Difference]: With dead ends: 665 [2020-09-25 04:14:17,953 INFO L226 Difference]: Without dead ends: 431 [2020-09-25 04:14:17,955 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2020-09-25 04:14:17,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 431 states. [2020-09-25 04:14:18,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 431 to 366. [2020-09-25 04:14:18,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 366 states. [2020-09-25 04:14:18,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 404 transitions. [2020-09-25 04:14:18,008 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 404 transitions. Word has length 208 [2020-09-25 04:14:18,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:14:18,008 INFO L479 AbstractCegarLoop]: Abstraction has 366 states and 404 transitions. [2020-09-25 04:14:18,008 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 04:14:18,009 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 404 transitions. [2020-09-25 04:14:18,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2020-09-25 04:14:18,011 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:14:18,011 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] [2020-09-25 04:14:18,012 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 04:14:18,012 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:14:18,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:14:18,012 INFO L82 PathProgramCache]: Analyzing trace with hash -1290271305, now seen corresponding path program 1 times [2020-09-25 04:14:18,013 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:14:18,013 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2040632646] [2020-09-25 04:14:18,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:14:18,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:14:18,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:14:18,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:14:18,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 253 [2020-09-25 04:14:18,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:14:18,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 724 [2020-09-25 04:14:18,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:14:18,796 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:14:18,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 04:14:18,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 192 [2020-09-25 04:14:18,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 04:14:18,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:14:19,128 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 04:14:19,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:14:19,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:14:19,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:14:19,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:14:19,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 04:14:19,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:14:19,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 111 [2020-09-25 04:14:19,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:14:19,254 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:14:19,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:14:19,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:14:19,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:14:19,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:14:19,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 04:14:19,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:14:19,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:14:19,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:14:19,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:14:19,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:14:19,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:14:19,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:14:19,305 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:14:19,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:14:19,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:14:19,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:14:19,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:14:19,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 04:14:19,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:14:19,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:14:19,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:14:19,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:14:19,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:14:19,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:14:19,315 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:14:19,315 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:14:19,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:14:19,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:14:19,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:14:19,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:14:19,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 04:14:19,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:14:19,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:14:19,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:14:19,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:14:19,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:14:19,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:14:19,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:14:19,326 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:14:19,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:14:19,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:14:19,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:14:19,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:14:19,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 04:14:19,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:14:19,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:14:19,332 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:14:19,333 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:14:19,333 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:14:19,333 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:14:19,334 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:14:19,334 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:14:19,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:14:19,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:14:19,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:14:19,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:14:19,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 04:14:19,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:14:19,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:14:19,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:14:19,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 04:14:19,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:14:19,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:14:19,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:14:19,353 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:14:19,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:14:19,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:14:19,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:14:19,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:14:19,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 04:14:19,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:14:19,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:14:19,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:14:19,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 04:14:19,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:14:19,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:14:19,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:14:19,360 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:14:19,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:14:19,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:14:19,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:14:19,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:14:19,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:14:19,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:14:19,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:14:19,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:14:19,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:14:19,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:14:19,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:14:19,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:14:19,373 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:14:19,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:14:19,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:14:19,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:14:19,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:14:19,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 04:14:19,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:14:19,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:14:19,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:14:19,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 04:14:19,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:14:19,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-09-25 04:14:19,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:14:19,462 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:14:19,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 04:14:19,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-25 04:14:19,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 04:14:19,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:14:19,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:14:19,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:14:19,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:14:19,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:14:19,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 04:14:19,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:14:19,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-09-25 04:14:19,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:14:19,544 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:14:19,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 04:14:19,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 04:14:19,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 04:14:19,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:14:19,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:14:19,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:14:19,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:14:19,590 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:14:19,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 04:14:19,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:14:19,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-09-25 04:14:19,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:14:19,592 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:14:19,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 04:14:19,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 04:14:19,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 04:14:19,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:14:19,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 04:14:19,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:14:19,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:14:19,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:14:19,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 04:14:19,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:14:19,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 04:14:19,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:14:19,647 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:14:19,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 04:14:19,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:14:19,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 04:14:19,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:14:19,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 04:14:19,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:14:19,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:14:19,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:14:19,689 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 04:14:19,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:14:19,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:14:19,689 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:14:19,690 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:14:19,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:14:19,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-25 04:14:19,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:14:19,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:14:19,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2020-09-25 04:14:19,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:14:19,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:14:19,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:14:19,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:14:19,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:14:19,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:14:19,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:14:19,702 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:14:19,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:14:19,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:14:19,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:14:19,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:14:19,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2020-09-25 04:14:19,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:14:19,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:14:19,713 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:14:19,713 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:14:19,713 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:14:19,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:14:19,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:14:19,714 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:14:19,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:14:19,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:14:19,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:14:19,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:14:19,786 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 04:14:19,786 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2040632646] [2020-09-25 04:14:19,787 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:14:19,787 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 04:14:19,787 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479097798] [2020-09-25 04:14:19,788 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 04:14:19,789 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:14:19,789 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 04:14:19,790 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-25 04:14:19,790 INFO L87 Difference]: Start difference. First operand 366 states and 404 transitions. Second operand 9 states. [2020-09-25 04:14:21,311 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 04:14:21,651 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 04:14:21,990 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 04:14:22,353 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 04:14:22,653 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 04:14:23,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:14:23,600 INFO L93 Difference]: Finished difference Result 693 states and 816 transitions. [2020-09-25 04:14:23,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 04:14:23,602 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 208 [2020-09-25 04:14:23,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:14:23,607 INFO L225 Difference]: With dead ends: 693 [2020-09-25 04:14:23,607 INFO L226 Difference]: Without dead ends: 442 [2020-09-25 04:14:23,608 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2020-09-25 04:14:23,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 442 states. [2020-09-25 04:14:23,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 442 to 372. [2020-09-25 04:14:23,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 372 states. [2020-09-25 04:14:23,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 372 states and 410 transitions. [2020-09-25 04:14:23,653 INFO L78 Accepts]: Start accepts. Automaton has 372 states and 410 transitions. Word has length 208 [2020-09-25 04:14:23,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:14:23,653 INFO L479 AbstractCegarLoop]: Abstraction has 372 states and 410 transitions. [2020-09-25 04:14:23,653 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 04:14:23,653 INFO L276 IsEmpty]: Start isEmpty. Operand 372 states and 410 transitions. [2020-09-25 04:14:23,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2020-09-25 04:14:23,656 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:14:23,656 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] [2020-09-25 04:14:23,657 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 04:14:23,657 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:14:23,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:14:23,657 INFO L82 PathProgramCache]: Analyzing trace with hash -599777164, now seen corresponding path program 1 times [2020-09-25 04:14:23,658 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:14:23,658 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1505951866] [2020-09-25 04:14:23,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:14:23,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:14:23,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:14:25,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:14:25,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 253 [2020-09-25 04:14:25,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:14:25,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1467 [2020-09-25 04:14:25,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:14:25,181 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:14:25,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 04:14:25,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-09-25 04:14:25,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-09-25 04:14:25,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 04:14:25,521 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 04:14:25,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:14:25,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:14:25,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:14:25,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:14:25,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 04:14:25,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:14:25,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 217 [2020-09-25 04:14:25,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:14:25,771 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:14:25,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:14:25,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:14:25,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 04:14:25,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:14:25,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 04:14:25,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:14:25,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:14:25,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:14:25,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:14:25,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:14:25,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:14:25,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:14:25,814 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:14:25,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:14:25,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:14:25,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 04:14:25,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:14:25,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 04:14:25,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:14:25,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:14:25,820 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:14:25,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:14:25,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:14:25,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:14:25,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:14:25,821 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:14:25,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:14:25,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:14:25,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 04:14:25,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:14:25,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 04:14:25,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:14:25,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:14:25,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:14:25,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:14:25,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:14:25,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 04:14:25,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:14:25,837 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:14:25,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:14:25,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:14:25,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 04:14:25,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:14:25,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 04:14:25,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:14:25,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:14:25,843 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:14:25,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:14:25,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:14:25,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:14:25,844 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:14:25,844 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:14:25,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:14:25,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:14:25,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 04:14:25,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:14:25,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 04:14:25,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:14:25,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:14:25,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:14:25,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 04:14:25,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:14:25,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:14:25,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:14:25,860 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:14:25,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:14:25,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:14:25,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 04:14:25,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:14:25,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 04:14:25,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:14:25,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:14:25,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:14:25,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 04:14:25,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:14:25,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:14:25,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:14:25,870 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:14:25,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:14:25,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:14:25,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 04:14:25,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:14:25,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:14:25,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:14:25,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:14:25,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:14:25,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:14:25,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:14:25,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:14:25,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:14:25,878 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:14:25,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:14:25,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:14:25,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:14:25,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:14:25,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 04:14:25,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:14:25,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:14:25,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:14:25,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 04:14:25,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:14:25,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-25 04:14:25,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:14:25,922 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:14:25,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:14:25,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-09-25 04:14:25,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 04:14:25,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:14:25,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:14:25,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:14:25,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:14:25,965 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:14:25,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 04:14:25,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:14:25,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-25 04:14:25,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:14:25,966 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:14:25,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:14:25,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:14:25,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 04:14:25,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:14:25,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:14:25,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:14:25,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:14:25,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:14:25,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 04:14:25,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:14:25,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 04:14:25,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:14:25,989 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:14:25,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:14:25,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:14:25,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 04:14:25,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:14:25,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 04:14:25,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:14:25,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:14:25,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:14:26,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 04:14:26,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:14:26,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:14:26,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:14:26,001 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:14:26,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:14:26,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:14:26,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 04:14:26,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:14:26,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 04:14:26,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:14:26,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:14:26,010 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:14:26,011 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 04:14:26,011 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:14:26,011 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:14:26,011 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:14:26,012 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:14:26,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:14:26,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:14:26,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 04:14:26,012 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:14:26,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2020-09-25 04:14:26,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:14:26,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:14:26,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:14:26,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:14:26,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:14:26,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:14:26,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:14:26,021 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:14:26,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:14:26,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:14:26,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:14:26,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:14:26,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2020-09-25 04:14:26,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:14:26,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:14:26,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:14:26,026 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:14:26,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:14:26,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:14:26,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:14:26,027 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:14:26,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:14:26,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:14:26,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:14:26,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:14:26,074 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 04:14:26,074 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1505951866] [2020-09-25 04:14:26,074 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:14:26,075 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 04:14:26,075 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937617128] [2020-09-25 04:14:26,076 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 04:14:26,076 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:14:26,076 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 04:14:26,076 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-25 04:14:26,076 INFO L87 Difference]: Start difference. First operand 372 states and 410 transitions. Second operand 7 states. [2020-09-25 04:14:26,589 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 04:14:27,963 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 04:14:30,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:14:30,154 INFO L93 Difference]: Finished difference Result 1119 states and 1371 transitions. [2020-09-25 04:14:30,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-25 04:14:30,155 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 208 [2020-09-25 04:14:30,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:14:30,160 INFO L225 Difference]: With dead ends: 1119 [2020-09-25 04:14:30,161 INFO L226 Difference]: Without dead ends: 862 [2020-09-25 04:14:30,162 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=70, Invalid=170, Unknown=0, NotChecked=0, Total=240 [2020-09-25 04:14:30,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 862 states. [2020-09-25 04:14:30,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 862 to 742. [2020-09-25 04:14:30,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 742 states. [2020-09-25 04:14:30,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 742 states to 742 states and 860 transitions. [2020-09-25 04:14:30,269 INFO L78 Accepts]: Start accepts. Automaton has 742 states and 860 transitions. Word has length 208 [2020-09-25 04:14:30,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:14:30,269 INFO L479 AbstractCegarLoop]: Abstraction has 742 states and 860 transitions. [2020-09-25 04:14:30,270 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 04:14:30,270 INFO L276 IsEmpty]: Start isEmpty. Operand 742 states and 860 transitions. [2020-09-25 04:14:30,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2020-09-25 04:14:30,272 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:14:30,273 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:14:30,273 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 04:14:30,273 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:14:30,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:14:30,274 INFO L82 PathProgramCache]: Analyzing trace with hash -1814893236, now seen corresponding path program 1 times [2020-09-25 04:14:30,274 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:14:30,274 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1300018328] [2020-09-25 04:14:30,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:14:30,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:14:30,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:14:30,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking...