/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=HIGHLEXORDER --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product51.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 22:32:33,786 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 22:32:33,791 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 22:32:33,835 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 22:32:33,836 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 22:32:33,843 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 22:32:33,845 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 22:32:33,849 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 22:32:33,852 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 22:32:33,855 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 22:32:33,856 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 22:32:33,857 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 22:32:33,858 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 22:32:33,862 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 22:32:33,864 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 22:32:33,865 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 22:32:33,867 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 22:32:33,868 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 22:32:33,869 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 22:32:33,879 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 22:32:33,881 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 22:32:33,882 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 22:32:33,884 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 22:32:33,884 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 22:32:33,889 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 22:32:33,889 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 22:32:33,889 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 22:32:33,893 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 22:32:33,894 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 22:32:33,897 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 22:32:33,897 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 22:32:33,898 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 22:32:33,898 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 22:32:33,902 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 22:32:33,903 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 22:32:33,903 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 22:32:33,904 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 22:32:33,904 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 22:32:33,905 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 22:32:33,906 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 22:32:33,906 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 22:32:33,907 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-24 22:32:33,933 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 22:32:33,933 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 22:32:33,935 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 22:32:33,935 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 22:32:33,936 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 22:32:33,936 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 22:32:33,936 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 22:32:33,936 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 22:32:33,936 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 22:32:33,937 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 22:32:33,937 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 22:32:33,937 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 22:32:33,937 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 22:32:33,937 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 22:32:33,938 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 22:32:33,938 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 22:32:33,938 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 22:32:33,938 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 22:32:33,939 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 22:32:33,939 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 22:32:33,939 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 22:32:33,939 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 22:32:33,939 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 22:32:33,940 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 22:32:33,940 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 22:32:33,940 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 22:32:33,940 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 22:32:33,940 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 22:32:33,941 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 22:32:33,941 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=HIGHLEXORDER;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=HIGHLEXORDER;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=HIGHLEXORDER;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=HIGHLEXORDER;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=HIGHLEXORDER;log-additional-information=true; [2020-09-24 22:32:34,445 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 22:32:34,469 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 22:32:34,473 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 22:32:34,476 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 22:32:34,477 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 22:32:34,478 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product51.cil.c [2020-09-24 22:32:34,563 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a297859d4/4daab145ec144fa4a4bf71eb67d5e38d/FLAG242b8adfb [2020-09-24 22:32:35,211 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 22:32:35,212 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product51.cil.c [2020-09-24 22:32:35,237 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a297859d4/4daab145ec144fa4a4bf71eb67d5e38d/FLAG242b8adfb [2020-09-24 22:32:35,466 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a297859d4/4daab145ec144fa4a4bf71eb67d5e38d [2020-09-24 22:32:35,478 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 22:32:35,484 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 22:32:35,485 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 22:32:35,486 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 22:32:35,490 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 22:32:35,491 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 10:32:35" (1/1) ... [2020-09-24 22:32:35,496 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 24.09 10:32:35, skipping insertion in model container [2020-09-24 22:32:35,496 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 10:32:35" (1/1) ... [2020-09-24 22:32:35,505 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 22:32:35,553 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 22:32:35,982 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 22:32:35,996 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 22:32:36,085 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 22:32:36,122 INFO L208 MainTranslator]: Completed translation [2020-09-24 22:32:36,123 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:32:36 WrapperNode [2020-09-24 22:32:36,123 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 22:32:36,124 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 22:32:36,124 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 22:32:36,124 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 22:32:36,140 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:32:36" (1/1) ... [2020-09-24 22:32:36,140 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:32:36" (1/1) ... [2020-09-24 22:32:36,164 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:32:36" (1/1) ... [2020-09-24 22:32:36,164 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:32:36" (1/1) ... [2020-09-24 22:32:36,200 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:32:36" (1/1) ... [2020-09-24 22:32:36,212 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:32:36" (1/1) ... [2020-09-24 22:32:36,218 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:32:36" (1/1) ... [2020-09-24 22:32:36,227 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 22:32:36,227 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 22:32:36,227 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 22:32:36,228 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 22:32:36,229 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:32:36" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 22:32:36,324 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 22:32:36,325 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 22:32:36,325 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 22:32:36,325 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 22:32:36,325 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 22:32:36,325 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 22:32:36,326 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 22:32:36,326 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 22:32:36,326 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-09-24 22:32:36,326 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 22:32:36,326 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 22:32:36,327 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 22:32:36,327 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 22:32:36,327 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 22:32:36,327 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 22:32:36,328 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 22:32:36,328 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-24 22:32:36,328 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 22:32:36,328 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 22:32:36,328 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 22:32:36,329 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 22:32:36,329 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 22:32:36,329 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 22:32:36,329 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 22:32:36,329 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 22:32:36,330 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 22:32:36,330 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 22:32:36,330 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 22:32:36,330 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 22:32:36,330 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 22:32:36,330 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 22:32:36,331 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-24 22:32:36,331 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-24 22:32:36,331 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 22:32:36,331 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 22:32:36,331 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 22:32:36,331 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 22:32:36,331 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 22:32:36,332 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 22:32:36,332 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 22:32:36,332 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 22:32:36,332 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 22:32:36,332 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 22:32:36,332 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 22:32:36,333 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 22:32:36,333 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 22:32:36,333 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 22:32:36,333 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 22:32:36,333 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 22:32:36,333 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 22:32:36,334 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 22:32:36,334 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 22:32:36,334 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 22:32:36,334 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 22:32:36,334 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 22:32:36,334 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 22:32:36,335 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 22:32:36,335 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 22:32:36,335 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 22:32:36,335 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 22:32:36,335 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-09-24 22:32:36,335 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 22:32:36,336 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 22:32:36,336 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 22:32:36,336 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 22:32:36,336 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-24 22:32:36,336 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 22:32:36,336 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 22:32:36,336 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 22:32:36,337 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 22:32:36,337 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-24 22:32:36,337 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 22:32:36,337 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 22:32:36,337 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 22:32:36,337 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 22:32:36,338 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-24 22:32:36,338 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 22:32:36,338 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 22:32:36,338 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 22:32:36,338 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 22:32:36,338 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 22:32:36,339 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 22:32:36,339 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 22:32:36,339 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 22:32:36,339 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 22:32:36,339 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 22:32:36,339 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 22:32:36,340 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 22:32:36,340 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 22:32:36,340 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 22:32:36,340 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 22:32:36,340 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 22:32:36,340 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 22:32:36,340 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 22:32:36,341 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 22:32:36,341 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 22:32:37,549 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 22:32:37,550 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 22:32:37,557 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 10:32:37 BoogieIcfgContainer [2020-09-24 22:32:37,557 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 22:32:37,558 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 22:32:37,559 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 22:32:37,562 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 22:32:37,563 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 10:32:35" (1/3) ... [2020-09-24 22:32:37,564 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72e73b4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 10:32:37, skipping insertion in model container [2020-09-24 22:32:37,564 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:32:36" (2/3) ... [2020-09-24 22:32:37,564 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72e73b4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 10:32:37, skipping insertion in model container [2020-09-24 22:32:37,564 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 10:32:37" (3/3) ... [2020-09-24 22:32:37,567 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product51.cil.c [2020-09-24 22:32:37,580 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 22:32:37,591 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 22:32:37,618 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 22:32:37,663 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 22:32:37,663 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 22:32:37,664 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 22:32:37,664 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 22:32:37,664 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 22:32:37,664 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 22:32:37,665 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 22:32:37,666 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 22:32:37,707 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states. [2020-09-24 22:32:37,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-24 22:32:37,741 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:32:37,743 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:32:37,745 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:32:37,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:32:37,756 INFO L82 PathProgramCache]: Analyzing trace with hash -2089318466, now seen corresponding path program 1 times [2020-09-24 22:32:37,769 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:32:37,772 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1625442607] [2020-09-24 22:32:37,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:32:38,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:32:38,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:38,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:39,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:41,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:43,105 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:32:43,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-24 22:32:43,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 22:32:43,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-09-24 22:32:43,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:32:43,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 22:32:43,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 138 [2020-09-24 22:32:43,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-24 22:32:43,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 22:32:43,570 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 22:32:43,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:32:43,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:32:43,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:43,713 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:32:43,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 22:32:43,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:32:43,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-09-24 22:32:43,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:32:43,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:32:43,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:32:43,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:32:43,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:32:43,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 22:32:43,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:32:43,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:43,780 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:32:43,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:32:43,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:32:43,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:32:43,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:32:43,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:32:43,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:32:43,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:32:43,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:32:43,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 22:32:43,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:32:43,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:43,787 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:32:43,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:32:43,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:32:43,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:32:43,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:32:43,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:32:43,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:32:43,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:32:43,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:32:43,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 22:32:43,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:32:43,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:43,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:32:43,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:32:43,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:32:43,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 22:32:43,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:32:43,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:32:43,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:32:43,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:32:43,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:32:43,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 22:32:43,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:32:43,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:43,804 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:32:43,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:32:43,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:32:43,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:32:43,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:32:43,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:32:43,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:32:43,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:32:43,806 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:32:43,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 22:32:43,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:32:43,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:43,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:32:43,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:32:43,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:32:43,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 22:32:43,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:32:43,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:32:43,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:32:43,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 22:32:43,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:32:43,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 22:32:43,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:32:43,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:43,848 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:32:43,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:32:43,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:32:43,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-24 22:32:43,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:32:43,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:32:43,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:32:43,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 22:32:43,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 22:32:43,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 22:32:43,963 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1625442607] [2020-09-24 22:32:43,966 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:32:43,966 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 22:32:43,968 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267518282] [2020-09-24 22:32:43,980 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 22:32:43,981 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:32:44,007 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 22:32:44,009 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-24 22:32:44,013 INFO L87 Difference]: Start difference. First operand 318 states. Second operand 8 states. [2020-09-24 22:32:44,870 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 22:32:46,189 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 22:32:46,495 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 22:32:46,852 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 22:32:47,288 WARN L193 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 22:32:47,650 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 22:32:48,255 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 22:32:48,504 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 22:32:48,898 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 22:32:50,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:32:50,142 INFO L93 Difference]: Finished difference Result 616 states and 771 transitions. [2020-09-24 22:32:50,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-24 22:32:50,146 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 142 [2020-09-24 22:32:50,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:32:50,183 INFO L225 Difference]: With dead ends: 616 [2020-09-24 22:32:50,184 INFO L226 Difference]: Without dead ends: 409 [2020-09-24 22:32:50,199 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=71, Invalid=201, Unknown=0, NotChecked=0, Total=272 [2020-09-24 22:32:50,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states. [2020-09-24 22:32:50,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 365. [2020-09-24 22:32:50,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 365 states. [2020-09-24 22:32:50,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 420 transitions. [2020-09-24 22:32:50,360 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 420 transitions. Word has length 142 [2020-09-24 22:32:50,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:32:50,362 INFO L479 AbstractCegarLoop]: Abstraction has 365 states and 420 transitions. [2020-09-24 22:32:50,362 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 22:32:50,363 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 420 transitions. [2020-09-24 22:32:50,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2020-09-24 22:32:50,374 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:32:50,375 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:32:50,375 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 22:32:50,376 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:32:50,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:32:50,383 INFO L82 PathProgramCache]: Analyzing trace with hash -1513602354, now seen corresponding path program 1 times [2020-09-24 22:32:50,383 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:32:50,383 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [759236206] [2020-09-24 22:32:50,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:32:50,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:32:50,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:51,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:55,489 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:32:55,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 229 [2020-09-24 22:32:55,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 22:32:55,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5038 [2020-09-24 22:32:55,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:32:55,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 22:32:55,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 177 [2020-09-24 22:32:55,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 22:32:55,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:32:55,741 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 22:32:55,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:32:55,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:32:55,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:55,846 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:32:55,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 22:32:55,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:32:55,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-09-24 22:32:55,847 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:32:55,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:32:55,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:32:55,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:32:55,848 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:32:55,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 22:32:55,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:32:55,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:55,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:32:55,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:32:55,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:32:55,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 22:32:55,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:32:55,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:32:55,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:32:55,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:32:55,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:32:55,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 22:32:55,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:32:55,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:55,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:32:55,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:32:55,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:32:55,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:32:55,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:32:55,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:32:55,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:32:55,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:32:55,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:32:55,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 22:32:55,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:32:55,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:55,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:32:55,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:32:55,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:32:55,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 22:32:55,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:32:55,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:32:55,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:32:55,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:32:55,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:32:55,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 22:32:55,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:32:55,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:55,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:32:55,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:32:55,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:32:55,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 22:32:55,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:32:55,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:32:55,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:32:55,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:32:55,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:32:55,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-24 22:32:55,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:32:55,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:55,982 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:32:55,982 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 22:32:55,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:32:55,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-09-24 22:32:55,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:32:55,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 22:32:55,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-24 22:32:55,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 22:32:55,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:32:55,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:32:55,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:32:55,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:56,062 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:32:56,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 22:32:56,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:32:56,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-09-24 22:32:56,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:32:56,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 22:32:56,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-24 22:32:56,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 22:32:56,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:32:56,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:32:56,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:32:56,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:56,123 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:32:56,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 22:32:56,124 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:32:56,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-09-24 22:32:56,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:32:56,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:32:56,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:32:56,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-24 22:32:56,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:32:56,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 22:32:56,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:32:56,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:56,163 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:32:56,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 22:32:56,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:32:56,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 22:32:56,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:32:56,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:32:56,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:32:56,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:32:56,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:32:56,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 22:32:56,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:32:56,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:56,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:32:56,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 22:32:56,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:32:56,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 22:32:56,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:32:56,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:32:56,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 22:32:56,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:32:56,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:32:56,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2020-09-24 22:32:56,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:32:56,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:56,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:32:56,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:32:56,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:32:56,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:32:56,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:32:56,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:32:56,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:32:56,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:32:56,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:32:56,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2020-09-24 22:32:56,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:32:56,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:56,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:32:56,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:32:56,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:32:56,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:32:56,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:32:56,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:32:56,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:32:56,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:32:56,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:32:56,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 22:32:56,270 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [759236206] [2020-09-24 22:32:56,271 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:32:56,271 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 22:32:56,271 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487615599] [2020-09-24 22:32:56,273 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 22:32:56,274 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:32:56,274 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 22:32:56,274 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 22:32:56,274 INFO L87 Difference]: Start difference. First operand 365 states and 420 transitions. Second operand 9 states. [2020-09-24 22:32:57,679 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 22:32:57,978 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 22:32:58,279 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 22:32:58,625 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 22:32:58,945 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 22:32:59,220 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 22:33:00,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:33:00,230 INFO L93 Difference]: Finished difference Result 711 states and 883 transitions. [2020-09-24 22:33:00,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-24 22:33:00,231 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 190 [2020-09-24 22:33:00,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:33:00,236 INFO L225 Difference]: With dead ends: 711 [2020-09-24 22:33:00,236 INFO L226 Difference]: Without dead ends: 456 [2020-09-24 22:33:00,239 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2020-09-24 22:33:00,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 456 states. [2020-09-24 22:33:00,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 376. [2020-09-24 22:33:00,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 376 states. [2020-09-24 22:33:00,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 431 transitions. [2020-09-24 22:33:00,316 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 431 transitions. Word has length 190 [2020-09-24 22:33:00,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:33:00,316 INFO L479 AbstractCegarLoop]: Abstraction has 376 states and 431 transitions. [2020-09-24 22:33:00,316 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 22:33:00,317 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 431 transitions. [2020-09-24 22:33:00,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2020-09-24 22:33:00,319 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:33:00,320 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:33:00,320 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 22:33:00,320 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:33:00,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:33:00,321 INFO L82 PathProgramCache]: Analyzing trace with hash 547817098, now seen corresponding path program 1 times [2020-09-24 22:33:00,321 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:33:00,321 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1471006322] [2020-09-24 22:33:00,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:33:00,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:33:00,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:33:00,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:33:00,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:33:00,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:33:05,393 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:33:05,394 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 252 [2020-09-24 22:33:05,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 22:33:05,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5023 [2020-09-24 22:33:05,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:33:05,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:33:05,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 192 [2020-09-24 22:33:05,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 22:33:05,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:33:05,661 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 22:33:05,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:33:05,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:33:05,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:33:05,772 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:33:05,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 22:33:05,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:33:05,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-09-24 22:33:05,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:33:05,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:33:05,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:33:05,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:33:05,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:33:05,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 22:33:05,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:33:05,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:33:05,816 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:33:05,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:33:05,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:33:05,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 22:33:05,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:33:05,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:33:05,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:33:05,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:33:05,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:33:05,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 22:33:05,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:33:05,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:33:05,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:33:05,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:33:05,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:33:05,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 22:33:05,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:33:05,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:33:05,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:33:05,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:33:05,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:33:05,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 22:33:05,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:33:05,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:33:05,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:33:05,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:33:05,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:33:05,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 22:33:05,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:33:05,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:33:05,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:33:05,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:33:05,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:33:05,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 22:33:05,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:33:05,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:33:05,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:33:05,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:33:05,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:33:05,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:33:05,838 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:33:05,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:33:05,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:33:05,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:33:05,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:33:05,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-09-24 22:33:05,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:33:05,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:33:05,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:33:05,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 22:33:05,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:33:05,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 22:33:05,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:33:05,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:33:05,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:33:05,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:33:05,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:33:05,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:33:05,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:33:05,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:33:05,876 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:33:05,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-24 22:33:05,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:33:05,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 22:33:05,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:33:05,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:33:05,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:33:05,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:33:05,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:33:05,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:33:05,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:33:05,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:33:05,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:33:05,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:33:05,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:33:05,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:33:05,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:33:05,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:33:05,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:33:05,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:33:05,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:33:05,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-24 22:33:05,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:33:05,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:33:05,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:33:05,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 22:33:05,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:33:05,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-09-24 22:33:05,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:33:05,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:33:05,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-24 22:33:05,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 22:33:05,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:33:05,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:33:05,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:33:05,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:33:06,028 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:33:06,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 22:33:06,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:33:06,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-09-24 22:33:06,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:33:06,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:33:06,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 22:33:06,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 22:33:06,030 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:33:06,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:33:06,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:33:06,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:33:06,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:33:06,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 22:33:06,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:33:06,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-24 22:33:06,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:33:06,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:33:06,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 22:33:06,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 22:33:06,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:33:06,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 22:33:06,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:33:06,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:33:06,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:33:06,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 22:33:06,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:33:06,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 22:33:06,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:33:06,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 22:33:06,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:33:06,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 22:33:06,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:33:06,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 22:33:06,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:33:06,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:33:06,129 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:33:06,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 22:33:06,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:33:06,130 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:33:06,130 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:33:06,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:33:06,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 22:33:06,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:33:06,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:33:06,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2020-09-24 22:33:06,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:33:06,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:33:06,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:33:06,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:33:06,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:33:06,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:33:06,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:33:06,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:33:06,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:33:06,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:33:06,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:33:06,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2020-09-24 22:33:06,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:33:06,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:33:06,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:33:06,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:33:06,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:33:06,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:33:06,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:33:06,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:33:06,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:33:06,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:33:06,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:33:06,185 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-09-24 22:33:06,186 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1471006322] [2020-09-24 22:33:06,186 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 22:33:06,186 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-24 22:33:06,187 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335023936] [2020-09-24 22:33:06,188 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 22:33:06,188 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:33:06,188 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 22:33:06,188 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-09-24 22:33:06,189 INFO L87 Difference]: Start difference. First operand 376 states and 431 transitions. Second operand 9 states. [2020-09-24 22:33:07,381 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 22:33:07,730 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 22:33:08,053 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 22:33:08,393 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 22:33:08,687 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 22:33:09,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:33:09,852 INFO L93 Difference]: Finished difference Result 756 states and 964 transitions. [2020-09-24 22:33:09,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-24 22:33:09,853 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 205 [2020-09-24 22:33:09,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:33:09,857 INFO L225 Difference]: With dead ends: 756 [2020-09-24 22:33:09,858 INFO L226 Difference]: Without dead ends: 490 [2020-09-24 22:33:09,859 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2020-09-24 22:33:09,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 490 states. [2020-09-24 22:33:09,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 490 to 382. [2020-09-24 22:33:09,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 382 states. [2020-09-24 22:33:09,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 382 states and 437 transitions. [2020-09-24 22:33:09,923 INFO L78 Accepts]: Start accepts. Automaton has 382 states and 437 transitions. Word has length 205 [2020-09-24 22:33:09,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:33:09,924 INFO L479 AbstractCegarLoop]: Abstraction has 382 states and 437 transitions. [2020-09-24 22:33:09,924 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 22:33:09,924 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states and 437 transitions. [2020-09-24 22:33:09,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-09-24 22:33:09,927 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:33:09,927 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:33:09,927 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 22:33:09,928 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:33:09,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:33:09,928 INFO L82 PathProgramCache]: Analyzing trace with hash 2047341076, now seen corresponding path program 1 times [2020-09-24 22:33:09,928 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:33:09,929 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [584759061] [2020-09-24 22:33:09,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:33:09,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:33:10,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:33:10,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:33:12,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:33:14,974 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:33:14,974 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 222 [2020-09-24 22:33:14,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 22:33:14,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-09-24 22:33:14,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:33:14,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 22:33:14,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 161 [2020-09-24 22:33:14,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-09-24 22:33:14,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:33:15,296 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 22:33:15,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:33:15,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:33:15,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:33:15,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:33:15,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 22:33:15,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:33:15,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 153 [2020-09-24 22:33:15,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:33:15,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:33:15,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:33:15,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:33:15,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:33:15,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 22:33:15,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:33:15,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:33:15,507 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:33:15,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:33:15,508 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:33:15,508 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:33:15,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:33:15,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:33:15,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:33:15,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:33:15,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:33:15,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 22:33:15,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:33:15,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:33:15,514 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:33:15,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:33:15,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:33:15,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:33:15,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:33:15,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:33:15,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:33:15,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:33:15,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:33:15,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 22:33:15,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:33:15,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:33:15,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:33:15,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:33:15,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:33:15,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 22:33:15,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:33:15,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:33:15,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:33:15,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:33:15,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:33:15,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 22:33:15,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:33:15,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:33:15,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:33:15,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:33:15,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:33:15,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:33:15,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:33:15,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:33:15,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:33:15,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:33:15,535 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:33:15,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-09-24 22:33:15,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:33:15,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:33:15,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:33:15,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 22:33:15,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:33:15,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-24 22:33:15,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:33:15,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:33:15,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:33:15,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-24 22:33:15,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:33:15,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:33:15,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:33:15,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:33:15,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:33:15,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 22:33:15,621 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:33:15,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-24 22:33:15,622 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:33:15,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:33:15,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:33:15,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-24 22:33:15,623 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:33:15,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:33:15,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:33:15,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:33:15,650 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:33:15,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 22:33:15,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:33:15,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-24 22:33:15,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:33:15,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:33:15,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:33:15,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 22:33:15,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:33:15,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 22:33:15,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:33:15,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:33:15,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:33:15,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 22:33:15,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:33:15,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 22:33:15,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:33:15,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:33:15,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:33:15,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 22:33:15,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:33:15,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 22:33:15,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:33:15,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:33:15,693 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:33:15,694 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 22:33:15,694 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:33:15,694 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 22:33:15,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:33:15,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:33:15,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:33:15,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 22:33:15,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:33:15,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-09-24 22:33:15,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:33:15,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:33:15,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:33:15,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:33:15,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:33:15,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 22:33:15,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:33:15,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:33:15,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:33:15,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 22:33:15,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:33:15,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2020-09-24 22:33:15,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:33:15,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:33:15,760 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:33:15,760 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:33:15,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:33:15,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:33:15,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:33:15,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:33:15,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:33:15,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:33:15,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:33:15,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 22:33:15,827 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [584759061] [2020-09-24 22:33:15,827 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:33:15,828 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 22:33:15,828 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043391343] [2020-09-24 22:33:15,829 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 22:33:15,830 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:33:15,830 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 22:33:15,830 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 22:33:15,831 INFO L87 Difference]: Start difference. First operand 382 states and 437 transitions. Second operand 9 states. [2020-09-24 22:33:16,671 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 22:33:17,189 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 22:33:17,512 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 22:33:18,355 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 22:33:18,680 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 22:33:19,037 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 22:33:19,386 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 22:33:19,682 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 22:33:21,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:33:21,835 INFO L93 Difference]: Finished difference Result 947 states and 1266 transitions. [2020-09-24 22:33:21,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-24 22:33:21,836 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 181 [2020-09-24 22:33:21,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:33:21,842 INFO L225 Difference]: With dead ends: 947 [2020-09-24 22:33:21,842 INFO L226 Difference]: Without dead ends: 675 [2020-09-24 22:33:21,844 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 26 SyntacticMatches, 4 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-09-24 22:33:21,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 675 states. [2020-09-24 22:33:21,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 675 to 545. [2020-09-24 22:33:21,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 545 states. [2020-09-24 22:33:21,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 545 states to 545 states and 660 transitions. [2020-09-24 22:33:21,921 INFO L78 Accepts]: Start accepts. Automaton has 545 states and 660 transitions. Word has length 181 [2020-09-24 22:33:21,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:33:21,922 INFO L479 AbstractCegarLoop]: Abstraction has 545 states and 660 transitions. [2020-09-24 22:33:21,922 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 22:33:21,922 INFO L276 IsEmpty]: Start isEmpty. Operand 545 states and 660 transitions. [2020-09-24 22:33:21,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2020-09-24 22:33:21,926 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:33:21,926 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:33:21,926 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 22:33:21,927 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:33:21,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:33:21,927 INFO L82 PathProgramCache]: Analyzing trace with hash -1693523375, now seen corresponding path program 1 times [2020-09-24 22:33:21,927 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:33:21,928 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1302165199] [2020-09-24 22:33:21,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:33:21,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:33:22,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:33:22,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:33:22,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:33:22,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking...