/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=SHALLOWEST --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_spec2_product25.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 23:32:32,293 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 23:32:32,297 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 23:32:32,342 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 23:32:32,343 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 23:32:32,354 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 23:32:32,356 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 23:32:32,360 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 23:32:32,362 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 23:32:32,366 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 23:32:32,367 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 23:32:32,368 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 23:32:32,368 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 23:32:32,372 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 23:32:32,374 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 23:32:32,376 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 23:32:32,378 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 23:32:32,379 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 23:32:32,380 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 23:32:32,390 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 23:32:32,393 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 23:32:32,394 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 23:32:32,395 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 23:32:32,396 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 23:32:32,399 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 23:32:32,399 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 23:32:32,399 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 23:32:32,403 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 23:32:32,403 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 23:32:32,404 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 23:32:32,404 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 23:32:32,405 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 23:32:32,406 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 23:32:32,407 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 23:32:32,408 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 23:32:32,408 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 23:32:32,409 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 23:32:32,409 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 23:32:32,410 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 23:32:32,411 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 23:32:32,412 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 23:32:32,413 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 23:32:32,458 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 23:32:32,459 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 23:32:32,461 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 23:32:32,462 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 23:32:32,462 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 23:32:32,462 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 23:32:32,462 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 23:32:32,463 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 23:32:32,463 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 23:32:32,463 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 23:32:32,464 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 23:32:32,464 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 23:32:32,465 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 23:32:32,465 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 23:32:32,465 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 23:32:32,466 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 23:32:32,466 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 23:32:32,466 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 23:32:32,466 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 23:32:32,466 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 23:32:32,467 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 23:32:32,467 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 23:32:32,467 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 23:32:32,467 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 23:32:32,468 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 23:32:32,468 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 23:32:32,468 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 23:32:32,468 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 23:32:32,468 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 23:32:32,469 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=SHALLOWEST;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=SHALLOWEST;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=SHALLOWEST;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=SHALLOWEST;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=SHALLOWEST;log-additional-information=true; [2020-09-24 23:32:32,916 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 23:32:32,934 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 23:32:32,939 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 23:32:32,941 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 23:32:32,941 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 23:32:32,942 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product25.cil.c [2020-09-24 23:32:33,043 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bbfe318b8/531431d0a9f449d78d3ae4ce4e08f26f/FLAG351a4acb2 [2020-09-24 23:32:33,676 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 23:32:33,676 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec2_product25.cil.c [2020-09-24 23:32:33,690 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bbfe318b8/531431d0a9f449d78d3ae4ce4e08f26f/FLAG351a4acb2 [2020-09-24 23:32:33,934 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bbfe318b8/531431d0a9f449d78d3ae4ce4e08f26f [2020-09-24 23:32:33,946 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 23:32:33,951 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 23:32:33,952 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 23:32:33,953 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 23:32:33,957 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 23:32:33,958 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 11:32:33" (1/1) ... [2020-09-24 23:32:33,964 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51a556b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:32:33, skipping insertion in model container [2020-09-24 23:32:33,964 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 11:32:33" (1/1) ... [2020-09-24 23:32:33,975 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 23:32:34,029 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 23:32:34,419 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 23:32:34,539 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 23:32:34,642 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 23:32:34,682 INFO L208 MainTranslator]: Completed translation [2020-09-24 23:32:34,683 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:32:34 WrapperNode [2020-09-24 23:32:34,683 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 23:32:34,684 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 23:32:34,684 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 23:32:34,684 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 23:32:34,703 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:32:34" (1/1) ... [2020-09-24 23:32:34,704 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:32:34" (1/1) ... [2020-09-24 23:32:34,725 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:32:34" (1/1) ... [2020-09-24 23:32:34,725 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:32:34" (1/1) ... [2020-09-24 23:32:34,760 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:32:34" (1/1) ... [2020-09-24 23:32:34,771 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:32:34" (1/1) ... [2020-09-24 23:32:34,777 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:32:34" (1/1) ... [2020-09-24 23:32:34,785 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 23:32:34,785 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 23:32:34,785 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 23:32:34,786 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 23:32:34,787 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:32:34" (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 23:32:34,889 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 23:32:34,890 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 23:32:34,890 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 23:32:34,890 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 23:32:34,891 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 23:32:34,891 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 23:32:34,891 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 23:32:34,891 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 23:32:34,893 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 23:32:34,893 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 23:32:34,893 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 23:32:34,893 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 23:32:34,893 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 23:32:34,894 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 23:32:34,894 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 23:32:34,895 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 23:32:34,895 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-09-24 23:32:34,895 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 23:32:34,895 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 23:32:34,896 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 23:32:34,896 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 23:32:34,896 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 23:32:34,897 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-24 23:32:34,897 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 23:32:34,897 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 23:32:34,898 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 23:32:34,898 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 23:32:34,898 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 23:32:34,898 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 23:32:34,898 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-24 23:32:34,899 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 23:32:34,899 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-09-24 23:32:34,899 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-09-24 23:32:34,899 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 23:32:34,899 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 23:32:34,899 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 23:32:34,900 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 23:32:34,900 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 23:32:34,900 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 23:32:34,900 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 23:32:34,900 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 23:32:34,900 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 23:32:34,900 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 23:32:34,901 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 23:32:34,901 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 23:32:34,901 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 23:32:34,901 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 23:32:34,901 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 23:32:34,901 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 23:32:34,902 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-09-24 23:32:34,902 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 23:32:34,902 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 23:32:34,902 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 23:32:34,903 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 23:32:34,903 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 23:32:34,903 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 23:32:34,903 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 23:32:34,903 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 23:32:34,904 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 23:32:34,904 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 23:32:34,904 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-24 23:32:34,904 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 23:32:34,904 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 23:32:34,904 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 23:32:34,905 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-09-24 23:32:34,905 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 23:32:34,905 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 23:32:34,905 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-24 23:32:34,905 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-09-24 23:32:34,905 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 23:32:34,906 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 23:32:34,907 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 23:32:34,908 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 23:32:34,908 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 23:32:34,908 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 23:32:34,909 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 23:32:34,909 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 23:32:34,909 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 23:32:34,909 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 23:32:34,909 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 23:32:34,909 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 23:32:34,909 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 23:32:34,910 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 23:32:34,911 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 23:32:34,911 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 23:32:34,911 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 23:32:34,911 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 23:32:34,911 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 23:32:34,911 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 23:32:34,912 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 23:32:34,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 23:32:34,912 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 23:32:35,994 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 23:32:35,994 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 23:32:36,001 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 11:32:36 BoogieIcfgContainer [2020-09-24 23:32:36,002 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 23:32:36,003 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 23:32:36,003 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 23:32:36,007 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 23:32:36,007 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 11:32:33" (1/3) ... [2020-09-24 23:32:36,008 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a7fd21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 11:32:36, skipping insertion in model container [2020-09-24 23:32:36,008 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:32:34" (2/3) ... [2020-09-24 23:32:36,009 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a7fd21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 11:32:36, skipping insertion in model container [2020-09-24 23:32:36,009 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 11:32:36" (3/3) ... [2020-09-24 23:32:36,011 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product25.cil.c [2020-09-24 23:32:36,023 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 23:32:36,035 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 23:32:36,060 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 23:32:36,095 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 23:32:36,095 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 23:32:36,095 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 23:32:36,095 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 23:32:36,095 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 23:32:36,096 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 23:32:36,096 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 23:32:36,096 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 23:32:36,126 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states. [2020-09-24 23:32:36,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-24 23:32:36,145 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:32:36,147 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] [2020-09-24 23:32:36,147 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:32:36,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:32:36,156 INFO L82 PathProgramCache]: Analyzing trace with hash 1113961409, now seen corresponding path program 1 times [2020-09-24 23:32:36,168 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:32:36,169 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [368081975] [2020-09-24 23:32:36,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:32:36,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:32:36,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:32:36,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:32:37,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:32:38,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:32:39,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:32:41,502 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:32:41,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-24 23:32:41,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 23:32:41,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-09-24 23:32:41,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:32:41,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:32:41,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-24 23:32:41,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-24 23:32:41,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 23:32:41,998 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 23:32:42,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:32:42,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:32:42,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:32:42,349 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:32:42,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 23:32:42,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:32:42,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 306 [2020-09-24 23:32:42,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:32:42,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:32:42,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:32:42,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 23:32:42,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 29 [2020-09-24 23:32:42,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 23:32:42,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:32:42,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:32:42,495 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:32:42,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:32:42,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:32:42,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 23:32:42,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:32:42,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:32:42,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:32:42,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:32:42,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:32:42,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 23:32:42,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:32:42,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:32:42,508 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:32:42,508 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:32:42,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:32:42,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 23:32:42,510 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:32:42,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:32:42,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:32:42,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:32:42,511 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:32:42,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 23:32:42,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:32:42,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:32:42,526 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:32:42,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:32:42,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:32:42,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 23:32:42,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:32:42,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:32:42,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:32:42,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:32:42,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:32:42,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 23:32:42,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:32:42,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:32:42,537 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:32:42,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:32:42,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:32:42,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:32:42,538 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:32:42,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:32:42,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:32:42,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:32:42,539 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:32:42,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 23:32:42,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:32:42,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:32:42,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:32:42,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 23:32:42,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:32:42,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 23:32:42,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:32:42,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:32:42,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:32:42,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 23:32:42,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:32:42,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-24 23:32:42,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:32:42,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:32:42,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:32:42,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:32:42,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:32:42,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:32:42,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:32:42,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:32:42,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:32:42,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:32:42,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:32:42,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-24 23:32:42,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:32:42,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:32:42,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:32:42,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:32:42,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:32:42,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:32:42,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:32:42,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:32:42,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:32:42,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:32:42,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:32:42,619 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 23:32:42,620 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [368081975] [2020-09-24 23:32:42,622 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:32:42,623 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 23:32:42,624 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809285686] [2020-09-24 23:32:42,631 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 23:32:42,632 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:32:42,649 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 23:32:42,650 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-24 23:32:42,653 INFO L87 Difference]: Start difference. First operand 300 states. Second operand 5 states. [2020-09-24 23:32:43,298 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 23:32:44,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:32:44,307 INFO L93 Difference]: Finished difference Result 426 states and 504 transitions. [2020-09-24 23:32:44,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 23:32:44,311 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 148 [2020-09-24 23:32:44,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:32:44,346 INFO L225 Difference]: With dead ends: 426 [2020-09-24 23:32:44,347 INFO L226 Difference]: Without dead ends: 278 [2020-09-24 23:32:44,360 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-24 23:32:44,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2020-09-24 23:32:44,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 233. [2020-09-24 23:32:44,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 233 states. [2020-09-24 23:32:44,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 250 transitions. [2020-09-24 23:32:44,506 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 250 transitions. Word has length 148 [2020-09-24 23:32:44,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:32:44,507 INFO L479 AbstractCegarLoop]: Abstraction has 233 states and 250 transitions. [2020-09-24 23:32:44,507 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 23:32:44,507 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 250 transitions. [2020-09-24 23:32:44,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-09-24 23:32:44,512 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:32:44,512 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] [2020-09-24 23:32:44,512 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 23:32:44,513 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:32:44,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:32:44,513 INFO L82 PathProgramCache]: Analyzing trace with hash 1636108198, now seen corresponding path program 1 times [2020-09-24 23:32:44,513 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:32:44,514 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2052041361] [2020-09-24 23:32:44,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:32:44,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:32:44,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:32:44,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:32:45,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:32:45,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:32:46,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:32:49,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:32:49,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 194 [2020-09-24 23:32:49,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 23:32:49,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5030 [2020-09-24 23:32:49,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:32:49,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 23:32:49,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-24 23:32:49,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-09-24 23:32:49,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:32:50,016 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 23:32:50,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:32:50,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:32:50,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:32:50,308 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:32:50,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 23:32:50,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:32:50,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 253 [2020-09-24 23:32:50,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:32:50,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:32:50,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:32:50,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-24 23:32:50,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:32:50,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 23:32:50,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:32:50,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:32:50,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:32:50,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:32:50,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:32:50,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:32:50,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:32:50,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:32:50,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:32:50,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:32:50,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:32:50,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 23:32:50,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:32:50,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:32:50,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:32:50,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:32:50,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:32:50,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:32:50,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:32:50,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:32:50,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:32:50,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:32:50,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:32:50,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 23:32:50,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:32:50,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:32:50,381 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:32:50,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:32:50,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:32:50,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 23:32:50,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:32:50,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:32:50,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:32:50,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:32:50,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:32:50,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 23:32:50,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:32:50,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:32:50,390 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:32:50,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:32:50,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:32:50,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:32:50,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:32:50,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:32:50,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:32:50,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:32:50,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:32:50,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 23:32:50,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:32:50,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:32:50,412 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:32:50,412 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 23:32:50,412 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:32:50,412 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:32:50,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:32:50,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:32:50,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:32:50,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 23:32:50,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:32:50,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-09-24 23:32:50,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:32:50,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:32:50,432 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:32:50,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 23:32:50,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:32:50,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 23:32:50,433 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:32:50,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:32:50,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:32:50,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-24 23:32:50,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:32:50,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:32:50,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:32:50,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:32:50,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:32:50,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:32:50,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:32:50,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:32:50,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:32:50,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:32:50,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:32:50,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:32:50,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:32:50,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 23:32:50,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:32:50,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:32:50,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:32:50,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:32:50,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:32:50,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 23:32:50,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:32:50,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:32:50,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:32:50,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:32:50,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:32:50,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-24 23:32:50,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:32:50,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:32:50,492 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:32:50,492 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:32:50,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:32:50,493 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:32:50,493 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:32:50,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:32:50,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:32:50,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:32:50,494 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:32:50,573 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 23:32:50,573 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2052041361] [2020-09-24 23:32:50,574 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:32:50,574 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 23:32:50,575 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132226116] [2020-09-24 23:32:50,577 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 23:32:50,578 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:32:50,578 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 23:32:50,579 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-24 23:32:50,579 INFO L87 Difference]: Start difference. First operand 233 states and 250 transitions. Second operand 10 states. [2020-09-24 23:32:51,170 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 23:32:52,438 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 23:32:52,765 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 23:32:53,116 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 23:32:53,503 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-24 23:32:53,877 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 23:32:54,467 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 23:32:54,790 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 23:32:55,243 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 23:32:56,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:32:56,408 INFO L93 Difference]: Finished difference Result 578 states and 702 transitions. [2020-09-24 23:32:56,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-09-24 23:32:56,409 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 157 [2020-09-24 23:32:56,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:32:56,416 INFO L225 Difference]: With dead ends: 578 [2020-09-24 23:32:56,416 INFO L226 Difference]: Without dead ends: 442 [2020-09-24 23:32:56,420 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=159, Invalid=441, Unknown=0, NotChecked=0, Total=600 [2020-09-24 23:32:56,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 442 states. [2020-09-24 23:32:56,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 442 to 323. [2020-09-24 23:32:56,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 323 states. [2020-09-24 23:32:56,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 352 transitions. [2020-09-24 23:32:56,487 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 352 transitions. Word has length 157 [2020-09-24 23:32:56,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:32:56,488 INFO L479 AbstractCegarLoop]: Abstraction has 323 states and 352 transitions. [2020-09-24 23:32:56,488 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 23:32:56,489 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 352 transitions. [2020-09-24 23:32:56,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-09-24 23:32:56,491 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:32:56,492 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] [2020-09-24 23:32:56,492 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 23:32:56,492 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:32:56,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:32:56,493 INFO L82 PathProgramCache]: Analyzing trace with hash -499221574, now seen corresponding path program 1 times [2020-09-24 23:32:56,493 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:32:56,493 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2014322962] [2020-09-24 23:32:56,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:32:56,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:32:56,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:32:56,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:32:57,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:32:59,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:01,549 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:33:01,550 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 208 [2020-09-24 23:33:01,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 23:33:01,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-24 23:33:01,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:33:01,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-24 23:33:01,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-24 23:33:01,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-09-24 23:33:01,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:33:01,981 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 23:33:01,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:33:02,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:33:02,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:02,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:33:02,240 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 23:33:02,240 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:33:02,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 225 [2020-09-24 23:33:02,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:33:02,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:33:02,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:33:02,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-24 23:33:02,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:33:02,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 23:33:02,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:33:02,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:02,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:33:02,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:33:02,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:33:02,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:33:02,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:33:02,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:33:02,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:33:02,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:33:02,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:33:02,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 23:33:02,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:33:02,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:02,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:33:02,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:33:02,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:33:02,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 23:33:02,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:33:02,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:33:02,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:33:02,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:33:02,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:33:02,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 23:33:02,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:33:02,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:02,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:33:02,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:33:02,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:33:02,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 23:33:02,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:33:02,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:33:02,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:33:02,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:33:02,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:33:02,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 23:33:02,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:33:02,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:02,325 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:33:02,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:33:02,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:33:02,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:33:02,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:33:02,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:33:02,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:33:02,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:33:02,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:33:02,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 23:33:02,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:33:02,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:02,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:33:02,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 23:33:02,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:33:02,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 23:33:02,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:33:02,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:33:02,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:33:02,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 23:33:02,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:33:02,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-24 23:33:02,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:33:02,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:02,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:33:02,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 23:33:02,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:33:02,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 23:33:02,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:33:02,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:33:02,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:33:02,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 23:33:02,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:33:02,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-24 23:33:02,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:33:02,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:02,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:02,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:33:02,420 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 23:33:02,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 23:33:02,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 23:33:02,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:33:02,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 23:33:02,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 23:33:02,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-24 23:33:02,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:33:02,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:33:02,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:33:02,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:02,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:33:02,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:33:02,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:33:02,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:33:02,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:33:02,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:33:02,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:33:02,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:33:02,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:33:02,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-24 23:33:02,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:33:02,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:02,441 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:33:02,441 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:33:02,441 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:33:02,441 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:33:02,442 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:33:02,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:33:02,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:33:02,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:33:02,442 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:33:02,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-09-24 23:33:02,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:33:02,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:02,453 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:33:02,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:33:02,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:33:02,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 23:33:02,455 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:33:02,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:33:02,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:33:02,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:33:02,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:33:02,551 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 23:33:02,551 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2014322962] [2020-09-24 23:33:02,552 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:33:02,552 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-24 23:33:02,553 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090516131] [2020-09-24 23:33:02,555 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-24 23:33:02,555 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:33:02,555 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-24 23:33:02,556 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-09-24 23:33:02,556 INFO L87 Difference]: Start difference. First operand 323 states and 352 transitions. Second operand 11 states. [2020-09-24 23:33:03,139 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 23:33:04,361 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 23:33:04,657 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 23:33:04,977 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 23:33:05,314 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 23:33:05,630 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 23:33:05,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:33:05,981 INFO L93 Difference]: Finished difference Result 529 states and 614 transitions. [2020-09-24 23:33:05,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-24 23:33:05,981 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 171 [2020-09-24 23:33:05,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:33:05,983 INFO L225 Difference]: With dead ends: 529 [2020-09-24 23:33:05,983 INFO L226 Difference]: Without dead ends: 0 [2020-09-24 23:33:05,988 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=176, Invalid=424, Unknown=0, NotChecked=0, Total=600 [2020-09-24 23:33:05,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-24 23:33:05,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-24 23:33:05,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-24 23:33:05,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-24 23:33:05,989 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 171 [2020-09-24 23:33:05,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:33:05,990 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-24 23:33:05,990 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-24 23:33:05,990 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-24 23:33:05,990 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-24 23:33:05,990 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 23:33:05,993 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-24 23:33:06,184 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 23:33:06,378 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 23:33:06,595 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 23:33:06,769 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 23:33:06,949 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 23:33:07,128 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 23:33:07,297 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 23:33:07,465 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 23:33:07,758 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 9 [2020-09-24 23:33:07,889 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 210 DAG size of output: 9 [2020-09-24 23:33:08,064 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 23:33:08,233 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 23:33:08,380 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 23:33:08,544 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 23:33:08,697 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 23:33:08,850 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 23:33:09,007 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 23:33:09,171 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 23:33:09,336 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 23:33:09,497 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 23:33:09,650 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 23:33:09,813 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 23:33:09,981 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 23:33:10,134 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 23:33:10,296 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 23:33:10,564 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 194 [2020-09-24 23:33:10,827 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 192 [2020-09-24 23:33:11,081 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 192 [2020-09-24 23:33:11,460 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 194 [2020-09-24 23:33:11,564 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 11 [2020-09-24 23:33:11,839 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 194 [2020-09-24 23:33:12,091 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 192 [2020-09-24 23:33:12,357 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 194 [2020-09-24 23:33:12,710 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 192 [2020-09-24 23:33:12,865 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 23:33:13,018 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 23:33:13,182 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 23:33:13,344 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 23:33:13,506 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 23:33:13,668 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 23:33:13,830 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 23:33:13,987 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 23:33:14,144 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 23:33:14,301 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 23:33:14,453 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 23:33:14,633 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 23:33:14,795 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 23:33:14,956 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 23:33:15,108 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 23:33:15,355 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 14 [2020-09-24 23:33:15,522 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 23:33:15,680 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 23:33:15,843 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 23:33:16,005 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 23:33:16,164 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 23:33:16,322 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 23:33:16,482 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 23:33:16,737 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 9 [2020-09-24 23:33:16,899 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 23:33:17,060 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 23:33:17,222 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 23:33:17,375 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 23:33:17,729 WARN L193 SmtUtils]: Spent 352.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 194 [2020-09-24 23:33:17,995 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 192 [2020-09-24 23:33:18,255 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 192 [2020-09-24 23:33:18,709 WARN L193 SmtUtils]: Spent 352.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 194 [2020-09-24 23:33:19,186 WARN L193 SmtUtils]: Spent 377.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 194 [2020-09-24 23:33:19,452 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 192 [2020-09-24 23:33:19,804 WARN L193 SmtUtils]: Spent 350.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 194 [2020-09-24 23:33:20,159 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 192 [2020-09-24 23:33:20,321 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 23:33:20,483 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 23:33:20,644 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 23:33:20,758 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 208 DAG size of output: 9 [2020-09-24 23:33:20,911 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 23:33:21,074 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 23:33:21,231 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 23:33:21,388 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 23:33:21,541 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 23:33:21,697 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 23:33:21,859 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 23:33:22,294 WARN L193 SmtUtils]: Spent 430.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 11 [2020-09-24 23:33:22,527 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 26 [2020-09-24 23:33:22,754 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 1 [2020-09-24 23:33:23,185 WARN L193 SmtUtils]: Spent 409.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 12 [2020-09-24 23:33:23,516 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 26 [2020-09-24 23:33:23,714 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 26 [2020-09-24 23:33:23,960 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 23:33:24,595 WARN L193 SmtUtils]: Spent 630.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 25 [2020-09-24 23:33:25,060 WARN L193 SmtUtils]: Spent 445.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 25