/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=HIGHLEXORDER --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product33.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 22:31:33,618 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 22:31:33,623 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 22:31:33,650 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 22:31:33,650 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 22:31:33,651 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 22:31:33,653 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 22:31:33,655 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 22:31:33,656 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 22:31:33,657 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 22:31:33,658 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 22:31:33,660 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 22:31:33,660 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 22:31:33,661 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 22:31:33,666 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 22:31:33,668 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 22:31:33,669 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 22:31:33,675 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 22:31:33,678 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 22:31:33,680 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 22:31:33,685 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 22:31:33,686 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 22:31:33,687 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 22:31:33,691 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 22:31:33,695 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 22:31:33,696 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 22:31:33,696 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 22:31:33,699 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 22:31:33,699 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 22:31:33,702 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 22:31:33,702 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 22:31:33,704 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 22:31:33,705 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 22:31:33,706 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 22:31:33,707 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 22:31:33,707 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 22:31:33,708 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 22:31:33,708 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 22:31:33,709 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 22:31:33,710 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 22:31:33,711 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 22:31:33,712 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-24 22:31:33,767 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 22:31:33,767 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 22:31:33,768 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 22:31:33,768 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 22:31:33,769 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 22:31:33,769 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 22:31:33,769 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 22:31:33,769 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 22:31:33,770 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 22:31:33,770 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 22:31:33,770 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 22:31:33,770 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 22:31:33,770 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 22:31:33,771 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 22:31:33,771 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 22:31:33,771 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 22:31:33,771 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 22:31:33,771 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 22:31:33,772 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 22:31:33,772 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 22:31:33,772 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 22:31:33,772 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 22:31:33,773 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 22:31:33,773 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 22:31:33,773 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 22:31:33,773 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 22:31:33,773 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 22:31:33,774 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 22:31:33,774 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 22:31:33,774 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=HIGHLEXORDER;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=HIGHLEXORDER;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=HIGHLEXORDER;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=HIGHLEXORDER;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=HIGHLEXORDER;log-additional-information=true; [2020-09-24 22:31:34,249 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 22:31:34,267 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 22:31:34,272 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 22:31:34,274 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 22:31:34,274 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 22:31:34,275 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product33.cil.c [2020-09-24 22:31:34,363 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3cacc1a68/a380931e244f478db4fb2fd6b3566f3a/FLAGdbd3d13fa [2020-09-24 22:31:34,935 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 22:31:34,936 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product33.cil.c [2020-09-24 22:31:34,963 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3cacc1a68/a380931e244f478db4fb2fd6b3566f3a/FLAGdbd3d13fa [2020-09-24 22:31:35,232 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3cacc1a68/a380931e244f478db4fb2fd6b3566f3a [2020-09-24 22:31:35,246 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 22:31:35,252 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 22:31:35,254 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 22:31:35,254 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 22:31:35,258 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 22:31:35,259 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 10:31:35" (1/1) ... [2020-09-24 22:31:35,264 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19da8246 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:31:35, skipping insertion in model container [2020-09-24 22:31:35,264 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 10:31:35" (1/1) ... [2020-09-24 22:31:35,273 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 22:31:35,343 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 22:31:35,892 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 22:31:35,908 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 22:31:36,028 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 22:31:36,065 INFO L208 MainTranslator]: Completed translation [2020-09-24 22:31:36,066 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:31:36 WrapperNode [2020-09-24 22:31:36,066 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 22:31:36,067 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 22:31:36,067 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 22:31:36,067 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 22:31:36,084 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:31:36" (1/1) ... [2020-09-24 22:31:36,085 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:31:36" (1/1) ... [2020-09-24 22:31:36,106 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:31:36" (1/1) ... [2020-09-24 22:31:36,106 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:31:36" (1/1) ... [2020-09-24 22:31:36,140 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:31:36" (1/1) ... [2020-09-24 22:31:36,151 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:31:36" (1/1) ... [2020-09-24 22:31:36,157 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:31:36" (1/1) ... [2020-09-24 22:31:36,169 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 22:31:36,169 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 22:31:36,169 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 22:31:36,170 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 22:31:36,181 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:31:36" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 22:31:36,259 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 22:31:36,259 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 22:31:36,259 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 22:31:36,259 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 22:31:36,260 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 22:31:36,260 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 22:31:36,260 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 22:31:36,260 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 22:31:36,260 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 22:31:36,261 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 22:31:36,261 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 22:31:36,261 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 22:31:36,261 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 22:31:36,261 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 22:31:36,262 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 22:31:36,262 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 22:31:36,262 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 22:31:36,262 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 22:31:36,262 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 22:31:36,263 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 22:31:36,263 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 22:31:36,263 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 22:31:36,263 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 22:31:36,263 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 22:31:36,264 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 22:31:36,264 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 22:31:36,264 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 22:31:36,264 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 22:31:36,264 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 22:31:36,265 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 22:31:36,265 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 22:31:36,265 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 22:31:36,265 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 22:31:36,265 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 22:31:36,265 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 22:31:36,266 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 22:31:36,266 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-09-24 22:31:36,266 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 22:31:36,266 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 22:31:36,266 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 22:31:36,266 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 22:31:36,267 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 22:31:36,267 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 22:31:36,267 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 22:31:36,267 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 22:31:36,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 22:31:36,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 22:31:36,268 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 22:31:36,268 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 22:31:36,268 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 22:31:36,268 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 22:31:36,268 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 22:31:36,268 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 22:31:36,269 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 22:31:36,269 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 22:31:36,269 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 22:31:36,269 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 22:31:36,269 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 22:31:36,270 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 22:31:36,270 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 22:31:36,270 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 22:31:36,270 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 22:31:36,270 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 22:31:36,270 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 22:31:36,271 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 22:31:36,271 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 22:31:36,271 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 22:31:36,271 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 22:31:36,271 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 22:31:36,271 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 22:31:36,271 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 22:31:36,272 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 22:31:36,272 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 22:31:36,272 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 22:31:36,272 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 22:31:36,272 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 22:31:36,272 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 22:31:36,273 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 22:31:36,273 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 22:31:36,273 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-09-24 22:31:36,273 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 22:31:36,273 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 22:31:36,274 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 22:31:36,274 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 22:31:36,274 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 22:31:36,274 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 22:31:36,274 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 22:31:36,274 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 22:31:37,408 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 22:31:37,414 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 22:31:37,424 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 10:31:37 BoogieIcfgContainer [2020-09-24 22:31:37,425 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 22:31:37,427 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 22:31:37,427 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 22:31:37,431 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 22:31:37,431 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 10:31:35" (1/3) ... [2020-09-24 22:31:37,432 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3acceeef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 10:31:37, skipping insertion in model container [2020-09-24 22:31:37,432 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:31:36" (2/3) ... [2020-09-24 22:31:37,433 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3acceeef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 10:31:37, skipping insertion in model container [2020-09-24 22:31:37,433 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 10:31:37" (3/3) ... [2020-09-24 22:31:37,435 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product33.cil.c [2020-09-24 22:31:37,447 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 22:31:37,458 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 22:31:37,478 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 22:31:37,509 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 22:31:37,510 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 22:31:37,510 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 22:31:37,510 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 22:31:37,510 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 22:31:37,510 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 22:31:37,511 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 22:31:37,511 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 22:31:37,540 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states. [2020-09-24 22:31:37,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-24 22:31:37,558 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:31:37,559 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:31:37,560 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:31:37,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:31:37,568 INFO L82 PathProgramCache]: Analyzing trace with hash 1598852952, now seen corresponding path program 1 times [2020-09-24 22:31:37,578 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:31:37,578 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1086520596] [2020-09-24 22:31:37,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:31:37,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:31:38,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:31:38,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:31:38,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:31:40,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:31:40,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:31:42,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:31:42,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-24 22:31:42,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 22:31:42,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-09-24 22:31:42,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:31:42,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 22:31:42,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 138 [2020-09-24 22:31:42,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-24 22:31:42,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 22:31:43,427 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 22:31:43,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:31:43,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:31:43,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:31:43,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:31:43,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 22:31:43,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:31:43,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 121 [2020-09-24 22:31:43,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:31:43,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:31:43,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:31:43,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:31:43,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:31:43,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 22:31:43,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:31:43,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:31:43,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:31:43,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:31:43,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:31:43,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:31:43,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:31:43,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:31:43,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:31:43,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:31:43,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:31:43,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 22:31:43,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:31:43,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:31:43,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:31:43,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:31:43,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:31:43,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:31:43,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:31:43,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:31:43,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:31:43,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:31:43,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:31:43,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 22:31:43,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:31:43,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:31:43,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:31:43,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:31:43,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:31:43,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 22:31:43,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:31:43,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:31:43,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:31:43,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:31:43,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:31:43,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 22:31:43,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:31:43,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:31:43,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:31:43,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:31:43,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:31:43,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 22:31:43,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:31:43,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:31:43,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:31:43,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:31:43,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:31:43,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 22:31:43,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:31:43,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:31:43,713 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:31:43,713 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:31:43,713 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:31:43,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 22:31:43,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:31:43,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:31:43,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:31:43,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 22:31:43,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 22:31:43,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 22:31:43,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:31:43,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:31:43,736 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:31:43,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:31:43,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:31:43,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 22:31:43,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:31:43,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:31:43,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:31:43,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 22:31:43,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:31:43,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 22:31:43,805 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1086520596] [2020-09-24 22:31:43,807 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:31:43,808 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 22:31:43,809 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680155215] [2020-09-24 22:31:43,817 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 22:31:43,817 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:31:43,834 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 22:31:43,835 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-24 22:31:43,837 INFO L87 Difference]: Start difference. First operand 278 states. Second operand 8 states. [2020-09-24 22:31:44,441 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 22:31:45,661 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 22:31:46,011 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 22:31:46,346 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 22:31:46,710 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 22:31:47,031 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 22:31:47,658 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 22:31:47,963 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 22:31:48,345 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 22:31:49,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:31:49,272 INFO L93 Difference]: Finished difference Result 524 states and 656 transitions. [2020-09-24 22:31:49,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-24 22:31:49,275 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 142 [2020-09-24 22:31:49,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:31:49,297 INFO L225 Difference]: With dead ends: 524 [2020-09-24 22:31:49,297 INFO L226 Difference]: Without dead ends: 357 [2020-09-24 22:31:49,303 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=71, Invalid=201, Unknown=0, NotChecked=0, Total=272 [2020-09-24 22:31:49,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2020-09-24 22:31:49,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 315. [2020-09-24 22:31:49,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 315 states. [2020-09-24 22:31:49,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 315 states and 361 transitions. [2020-09-24 22:31:49,424 INFO L78 Accepts]: Start accepts. Automaton has 315 states and 361 transitions. Word has length 142 [2020-09-24 22:31:49,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:31:49,425 INFO L479 AbstractCegarLoop]: Abstraction has 315 states and 361 transitions. [2020-09-24 22:31:49,425 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 22:31:49,425 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states and 361 transitions. [2020-09-24 22:31:49,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2020-09-24 22:31:49,431 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:31:49,431 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:31:49,431 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 22:31:49,432 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:31:49,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:31:49,432 INFO L82 PathProgramCache]: Analyzing trace with hash 612941210, now seen corresponding path program 1 times [2020-09-24 22:31:49,432 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:31:49,433 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1454733270] [2020-09-24 22:31:49,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:31:49,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:31:49,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:31:50,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:31:54,491 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:31:54,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 222 [2020-09-24 22:31:54,492 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 22:31:54,492 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-09-24 22:31:54,492 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:31:54,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 22:31:54,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 172 [2020-09-24 22:31:54,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 22:31:54,493 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:31:54,879 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 22:31:54,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:31:54,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:31:54,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:31:54,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:31:54,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 22:31:54,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:31:54,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 102 [2020-09-24 22:31:54,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:31:54,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:31:54,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:31:54,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:31:54,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:31:55,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 22:31:55,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:31:55,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:31:55,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:31:55,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:31:55,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:31:55,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:31:55,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:31:55,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:31:55,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:31:55,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:31:55,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:31:55,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 22:31:55,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:31:55,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:31:55,045 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:31:55,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:31:55,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:31:55,046 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:31:55,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:31:55,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:31:55,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:31:55,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:31:55,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:31:55,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 22:31:55,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:31:55,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:31:55,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:31:55,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:31:55,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:31:55,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 22:31:55,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:31:55,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:31:55,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:31:55,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:31:55,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:31:55,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 22:31:55,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:31:55,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:31:55,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:31:55,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:31:55,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:31:55,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:31:55,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:31:55,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:31:55,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:31:55,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:31:55,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:31:55,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-24 22:31:55,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:31:55,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:31:55,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:31:55,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 22:31:55,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:31:55,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-09-24 22:31:55,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:31:55,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 22:31:55,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-24 22:31:55,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 22:31:55,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:31:55,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:31:55,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:31:55,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:31:55,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:31:55,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 22:31:55,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:31:55,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-09-24 22:31:55,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:31:55,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:31:55,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:31:55,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-24 22:31:55,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:31:55,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 22:31:55,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:31:55,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:31:55,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:31:55,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 22:31:55,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:31:55,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 22:31:55,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:31:55,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:31:55,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:31:55,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:31:55,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:31:55,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 22:31:55,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:31:55,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:31:55,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:31:55,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 22:31:55,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:31:55,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:31:55,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:31:55,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:31:55,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 22:31:55,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:31:55,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:31:55,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2020-09-24 22:31:55,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:31:55,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:31:55,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:31:55,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:31:55,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:31:55,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:31:55,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:31:55,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:31:55,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:31:55,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:31:55,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:31:55,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2020-09-24 22:31:55,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:31:55,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:31:55,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:31:55,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:31:55,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:31:55,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:31:55,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:31:55,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:31:55,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:31:55,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:31:55,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:31:55,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 22:31:55,325 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1454733270] [2020-09-24 22:31:55,326 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:31:55,326 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 22:31:55,326 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577920102] [2020-09-24 22:31:55,329 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 22:31:55,331 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:31:55,331 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 22:31:55,331 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 22:31:55,331 INFO L87 Difference]: Start difference. First operand 315 states and 361 transitions. Second operand 9 states. [2020-09-24 22:31:56,769 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 22:31:57,070 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 22:31:57,399 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 22:31:57,766 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 22:31:58,104 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 22:31:58,401 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 22:31:59,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:31:59,097 INFO L93 Difference]: Finished difference Result 602 states and 747 transitions. [2020-09-24 22:31:59,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-24 22:31:59,098 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 185 [2020-09-24 22:31:59,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:31:59,104 INFO L225 Difference]: With dead ends: 602 [2020-09-24 22:31:59,104 INFO L226 Difference]: Without dead ends: 397 [2020-09-24 22:31:59,108 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2020-09-24 22:31:59,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397 states. [2020-09-24 22:31:59,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 323. [2020-09-24 22:31:59,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 323 states. [2020-09-24 22:31:59,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 369 transitions. [2020-09-24 22:31:59,166 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 369 transitions. Word has length 185 [2020-09-24 22:31:59,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:31:59,167 INFO L479 AbstractCegarLoop]: Abstraction has 323 states and 369 transitions. [2020-09-24 22:31:59,167 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 22:31:59,167 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 369 transitions. [2020-09-24 22:31:59,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2020-09-24 22:31:59,171 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:31:59,171 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:31:59,171 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 22:31:59,171 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:31:59,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:31:59,172 INFO L82 PathProgramCache]: Analyzing trace with hash -809299654, now seen corresponding path program 1 times [2020-09-24 22:31:59,172 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:31:59,172 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1939641761] [2020-09-24 22:31:59,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:31:59,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:31:59,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:31:59,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:04,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:32:04,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 222 [2020-09-24 22:32:04,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 22:32:04,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-09-24 22:32:04,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:32:04,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:32:04,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 164 [2020-09-24 22:32:04,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 22:32:04,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:32:04,489 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 22:32:04,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:32:04,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:32:04,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:04,593 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:32:04,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 22:32:04,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:32:04,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-09-24 22:32:04,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:32:04,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:32:04,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:32:04,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:32:04,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:32:04,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 22:32:04,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:32:04,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:04,632 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:32:04,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:32:04,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:32:04,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 22:32:04,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:32:04,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:32:04,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:32:04,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:32:04,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:32:04,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 22:32:04,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:32:04,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:04,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:32:04,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:32:04,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:32:04,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:32:04,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:32:04,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:32:04,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:32:04,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:32:04,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:32:04,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 22:32:04,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:32:04,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:04,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:32:04,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:32:04,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:32:04,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 22:32:04,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:32:04,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:32:04,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:32:04,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:32:04,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:32:04,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 22:32:04,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:32:04,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:04,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:32:04,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:32:04,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:32:04,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:32:04,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:32:04,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:32:04,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:32:04,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:32:04,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:32:04,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-24 22:32:04,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:32:04,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:04,713 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:32:04,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 22:32:04,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:32:04,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-09-24 22:32:04,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:32:04,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:32:04,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 22:32:04,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 22:32:04,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:32:04,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:32:04,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:32:04,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:04,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:32:04,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 22:32:04,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:32:04,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-09-24 22:32:04,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:32:04,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:32:04,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 22:32:04,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 22:32:04,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:32:04,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 22:32:04,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:32:04,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:04,787 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:32:04,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 22:32:04,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:32:04,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 22:32:04,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:32:04,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 22:32:04,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:32:04,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 22:32:04,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:32:04,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 22:32:04,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:32:04,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:04,816 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:32:04,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 22:32:04,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:32:04,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:32:04,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:32:04,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:32:04,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 22:32:04,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:32:04,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:32:04,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2020-09-24 22:32:04,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:32:04,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:04,823 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:32:04,823 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:32:04,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:32:04,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:32:04,824 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:32:04,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:32:04,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:32:04,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:32:04,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:32:04,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2020-09-24 22:32:04,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:32:04,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:04,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:32:04,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:32:04,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:32:04,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:32:04,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:32:04,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:32:04,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:32:04,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:32:04,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:32:04,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 22:32:04,864 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1939641761] [2020-09-24 22:32:04,865 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:32:04,865 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 22:32:04,865 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55004711] [2020-09-24 22:32:04,866 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 22:32:04,866 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:32:04,866 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 22:32:04,866 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-24 22:32:04,867 INFO L87 Difference]: Start difference. First operand 323 states and 369 transitions. Second operand 8 states. [2020-09-24 22:32:06,082 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 22:32:06,377 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 22:32:06,713 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 22:32:07,072 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 22:32:07,376 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 22:32:08,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:32:08,222 INFO L93 Difference]: Finished difference Result 621 states and 787 transitions. [2020-09-24 22:32:08,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-24 22:32:08,223 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 185 [2020-09-24 22:32:08,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:32:08,232 INFO L225 Difference]: With dead ends: 621 [2020-09-24 22:32:08,232 INFO L226 Difference]: Without dead ends: 408 [2020-09-24 22:32:08,237 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2020-09-24 22:32:08,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 408 states. [2020-09-24 22:32:08,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 408 to 329. [2020-09-24 22:32:08,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 329 states. [2020-09-24 22:32:08,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 375 transitions. [2020-09-24 22:32:08,312 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 375 transitions. Word has length 185 [2020-09-24 22:32:08,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:32:08,314 INFO L479 AbstractCegarLoop]: Abstraction has 329 states and 375 transitions. [2020-09-24 22:32:08,314 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 22:32:08,314 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 375 transitions. [2020-09-24 22:32:08,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2020-09-24 22:32:08,318 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:32:08,319 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:32:08,320 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 22:32:08,320 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:32:08,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:32:08,320 INFO L82 PathProgramCache]: Analyzing trace with hash -600950883, now seen corresponding path program 1 times [2020-09-24 22:32:08,320 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:32:08,321 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1607453344] [2020-09-24 22:32:08,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:32:08,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:32:08,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:09,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:12,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:13,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:32:13,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 222 [2020-09-24 22:32:13,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 22:32:13,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4856 [2020-09-24 22:32:13,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:32:13,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 22:32:13,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 163 [2020-09-24 22:32:13,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-09-24 22:32:13,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:32:13,523 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 22:32:13,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:32:13,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:32:13,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:13,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:32:13,623 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 22:32:13,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:32:13,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-09-24 22:32:13,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:32:13,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:32:13,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:32:13,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:32:13,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:32:13,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 22:32:13,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:32:13,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:13,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:32:13,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:32:13,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:32:13,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:32:13,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:32:13,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:32:13,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:32:13,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:32:13,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:32:13,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 22:32:13,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:32:13,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:13,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:32:13,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:32:13,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:32:13,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:32:13,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:32:13,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:32:13,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:32:13,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:32:13,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:32:13,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 22:32:13,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:32:13,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:13,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:32:13,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:32:13,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:32:13,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 22:32:13,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:32:13,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:32:13,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:32:13,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:32:13,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:32:13,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 22:32:13,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:32:13,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:13,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:32:13,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:32:13,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:32:13,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:32:13,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:32:13,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:32:13,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:32:13,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:32:13,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:32:13,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-24 22:32:13,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:32:13,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:13,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:32:13,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 22:32:13,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:32:13,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-24 22:32:13,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:32:13,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:32:13,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:32:13,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-24 22:32:13,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:32:13,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:32:13,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:32:13,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:13,748 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:32:13,749 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 22:32:13,749 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:32:13,749 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 22:32:13,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:32:13,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:32:13,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:32:13,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 22:32:13,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:32:13,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 22:32:13,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:32:13,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:13,763 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:32:13,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 22:32:13,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:32:13,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:32:13,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:32:13,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:32:13,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:32:13,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 22:32:13,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:32:13,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 22:32:13,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:32:13,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:13,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:32:13,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 22:32:13,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:32:13,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 22:32:13,778 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:32:13,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:32:13,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:32:13,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 22:32:13,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:32:13,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2020-09-24 22:32:13,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:32:13,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:13,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:32:13,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:32:13,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:32:13,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 22:32:13,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:32:13,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:32:13,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:32:13,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 22:32:13,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:32:13,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2020-09-24 22:32:13,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:32:13,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:13,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:32:13,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:32:13,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:32:13,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 22:32:13,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:32:13,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:32:13,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:32:13,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:32:13,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:32:13,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 22:32:13,858 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1607453344] [2020-09-24 22:32:13,858 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:32:13,858 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 22:32:13,859 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648847379] [2020-09-24 22:32:13,859 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 22:32:13,860 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:32:13,860 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 22:32:13,860 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 22:32:13,860 INFO L87 Difference]: Start difference. First operand 329 states and 375 transitions. Second operand 9 states. [2020-09-24 22:32:14,913 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 22:32:15,516 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 22:32:15,839 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 22:32:16,712 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 22:32:17,073 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 22:32:17,485 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 22:32:17,868 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 22:32:18,174 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 22:32:19,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:32:19,739 INFO L93 Difference]: Finished difference Result 814 states and 1097 transitions. [2020-09-24 22:32:19,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-24 22:32:19,740 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 185 [2020-09-24 22:32:19,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:32:19,747 INFO L225 Difference]: With dead ends: 814 [2020-09-24 22:32:19,747 INFO L226 Difference]: Without dead ends: 595 [2020-09-24 22:32:19,749 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 24 SyntacticMatches, 3 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-09-24 22:32:19,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 595 states. [2020-09-24 22:32:19,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 595 to 473. [2020-09-24 22:32:19,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 473 states. [2020-09-24 22:32:19,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 473 states to 473 states and 574 transitions. [2020-09-24 22:32:19,846 INFO L78 Accepts]: Start accepts. Automaton has 473 states and 574 transitions. Word has length 185 [2020-09-24 22:32:19,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:32:19,847 INFO L479 AbstractCegarLoop]: Abstraction has 473 states and 574 transitions. [2020-09-24 22:32:19,847 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 22:32:19,847 INFO L276 IsEmpty]: Start isEmpty. Operand 473 states and 574 transitions. [2020-09-24 22:32:19,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2020-09-24 22:32:19,855 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:32:19,855 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:32:19,856 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 22:32:19,856 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:32:19,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:32:19,856 INFO L82 PathProgramCache]: Analyzing trace with hash 1135147419, now seen corresponding path program 1 times [2020-09-24 22:32:19,857 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:32:19,857 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1760423910] [2020-09-24 22:32:19,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:32:19,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:32:19,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:20,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:20,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:20,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:20,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:21,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:21,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:22,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking...