/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=LOWLEXORDER --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_product45.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 21:25:15,088 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 21:25:15,093 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 21:25:15,141 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 21:25:15,141 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 21:25:15,143 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 21:25:15,144 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 21:25:15,146 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 21:25:15,148 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 21:25:15,149 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 21:25:15,150 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 21:25:15,151 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 21:25:15,151 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 21:25:15,152 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 21:25:15,153 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 21:25:15,154 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 21:25:15,155 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 21:25:15,156 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 21:25:15,158 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 21:25:15,160 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 21:25:15,162 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 21:25:15,163 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 21:25:15,164 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 21:25:15,165 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 21:25:15,167 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 21:25:15,168 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 21:25:15,168 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 21:25:15,169 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 21:25:15,169 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 21:25:15,171 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 21:25:15,171 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 21:25:15,172 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 21:25:15,172 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 21:25:15,173 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 21:25:15,174 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 21:25:15,175 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 21:25:15,175 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 21:25:15,176 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 21:25:15,176 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 21:25:15,177 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 21:25:15,178 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 21:25:15,179 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 21:25:15,204 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 21:25:15,204 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 21:25:15,205 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 21:25:15,206 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 21:25:15,206 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 21:25:15,206 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 21:25:15,206 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 21:25:15,207 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 21:25:15,207 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 21:25:15,207 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 21:25:15,207 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 21:25:15,207 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 21:25:15,208 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 21:25:15,208 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 21:25:15,208 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 21:25:15,208 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 21:25:15,208 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 21:25:15,209 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 21:25:15,209 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 21:25:15,209 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 21:25:15,209 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 21:25:15,210 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 21:25:15,210 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 21:25:15,210 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 21:25:15,210 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 21:25:15,211 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 21:25:15,211 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 21:25:15,211 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 21:25:15,211 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 21:25:15,211 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=LOWLEXORDER;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=LOWLEXORDER;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=LOWLEXORDER;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=LOWLEXORDER;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=LOWLEXORDER;log-additional-information=true; [2020-09-24 21:25:15,641 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 21:25:15,667 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 21:25:15,672 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 21:25:15,674 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 21:25:15,676 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 21:25:15,677 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product45.cil.c [2020-09-24 21:25:15,772 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5a480e133/bd407b8640af4d9dbc26f7a41e758ab3/FLAGc88a8a4f8 [2020-09-24 21:25:16,417 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 21:25:16,417 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product45.cil.c [2020-09-24 21:25:16,430 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5a480e133/bd407b8640af4d9dbc26f7a41e758ab3/FLAGc88a8a4f8 [2020-09-24 21:25:16,682 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5a480e133/bd407b8640af4d9dbc26f7a41e758ab3 [2020-09-24 21:25:16,696 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 21:25:16,701 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 21:25:16,703 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 21:25:16,703 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 21:25:16,707 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 21:25:16,709 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 09:25:16" (1/1) ... [2020-09-24 21:25:16,713 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11967da3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:25:16, skipping insertion in model container [2020-09-24 21:25:16,713 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 09:25:16" (1/1) ... [2020-09-24 21:25:16,722 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 21:25:16,777 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 21:25:17,215 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 21:25:17,231 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 21:25:17,421 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 21:25:17,461 INFO L208 MainTranslator]: Completed translation [2020-09-24 21:25:17,462 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:25:17 WrapperNode [2020-09-24 21:25:17,462 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 21:25:17,463 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 21:25:17,463 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 21:25:17,463 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 21:25:17,477 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:25:17" (1/1) ... [2020-09-24 21:25:17,477 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:25:17" (1/1) ... [2020-09-24 21:25:17,499 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:25:17" (1/1) ... [2020-09-24 21:25:17,499 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:25:17" (1/1) ... [2020-09-24 21:25:17,531 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:25:17" (1/1) ... [2020-09-24 21:25:17,543 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:25:17" (1/1) ... [2020-09-24 21:25:17,548 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:25:17" (1/1) ... [2020-09-24 21:25:17,556 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 21:25:17,557 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 21:25:17,557 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 21:25:17,557 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 21:25:17,559 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:25:17" (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 21:25:17,656 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 21:25:17,656 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 21:25:17,657 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 21:25:17,657 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 21:25:17,657 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 21:25:17,657 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 21:25:17,657 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-09-24 21:25:17,658 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 21:25:17,658 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-09-24 21:25:17,658 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 21:25:17,658 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 21:25:17,659 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 21:25:17,659 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 21:25:17,659 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 21:25:17,659 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 21:25:17,659 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 21:25:17,660 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 21:25:17,660 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 21:25:17,660 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 21:25:17,660 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 21:25:17,661 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 21:25:17,661 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 21:25:17,661 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-09-24 21:25:17,661 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 21:25:17,661 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 21:25:17,661 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 21:25:17,662 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 21:25:17,662 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 21:25:17,662 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 21:25:17,662 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 21:25:17,662 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 21:25:17,662 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 21:25:17,663 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 21:25:17,663 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 21:25:17,663 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 21:25:17,663 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 21:25:17,663 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 21:25:17,663 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 21:25:17,664 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 21:25:17,664 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 21:25:17,664 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 21:25:17,664 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 21:25:17,664 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 21:25:17,664 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 21:25:17,664 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 21:25:17,665 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 21:25:17,665 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 21:25:17,665 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 21:25:17,665 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 21:25:17,665 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 21:25:17,666 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 21:25:17,666 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 21:25:17,666 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 21:25:17,666 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 21:25:17,666 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 21:25:17,666 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-09-24 21:25:17,667 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 21:25:17,667 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 21:25:17,667 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 21:25:17,667 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-09-24 21:25:17,667 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 21:25:17,667 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-09-24 21:25:17,667 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 21:25:17,668 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 21:25:17,668 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 21:25:17,668 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 21:25:17,668 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 21:25:17,668 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 21:25:17,668 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 21:25:17,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 21:25:17,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 21:25:17,669 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 21:25:17,669 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 21:25:17,669 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 21:25:17,669 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 21:25:17,670 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 21:25:17,670 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 21:25:17,670 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 21:25:17,670 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 21:25:17,670 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 21:25:17,670 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 21:25:17,671 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 21:25:17,671 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 21:25:17,671 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 21:25:17,671 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 21:25:17,671 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 21:25:17,671 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 21:25:17,672 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 21:25:17,672 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 21:25:17,672 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 21:25:17,672 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 21:25:17,672 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 21:25:18,793 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 21:25:18,793 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 21:25:18,800 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 09:25:18 BoogieIcfgContainer [2020-09-24 21:25:18,800 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 21:25:18,802 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 21:25:18,802 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 21:25:18,806 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 21:25:18,806 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 09:25:16" (1/3) ... [2020-09-24 21:25:18,807 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@262f2c96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 09:25:18, skipping insertion in model container [2020-09-24 21:25:18,807 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:25:17" (2/3) ... [2020-09-24 21:25:18,807 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@262f2c96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 09:25:18, skipping insertion in model container [2020-09-24 21:25:18,808 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 09:25:18" (3/3) ... [2020-09-24 21:25:18,810 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product45.cil.c [2020-09-24 21:25:18,821 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 21:25:18,832 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 21:25:18,854 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 21:25:18,886 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 21:25:18,886 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 21:25:18,886 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 21:25:18,886 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 21:25:18,887 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 21:25:18,887 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 21:25:18,887 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 21:25:18,887 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 21:25:18,915 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states. [2020-09-24 21:25:18,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-24 21:25:18,934 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:25:18,935 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 21:25:18,936 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:25:18,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:25:18,943 INFO L82 PathProgramCache]: Analyzing trace with hash 2095519096, now seen corresponding path program 1 times [2020-09-24 21:25:18,953 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:25:18,953 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [856004641] [2020-09-24 21:25:18,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:25:19,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:19,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:19,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:20,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:21,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:21,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:24,319 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:24,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-24 21:25:24,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 21:25:24,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-09-24 21:25:24,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:24,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-24 21:25:24,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-24 21:25:24,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 92 [2020-09-24 21:25:24,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 21:25:24,802 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 21:25:24,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:25:24,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:24,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:25,134 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:25,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 21:25:25,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:25:25,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 286 [2020-09-24 21:25:25,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:25,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:25:25,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:25:25,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-24 21:25:25,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:25:25,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 21:25:25,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:25,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:25,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:25,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:25:25,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:25:25,215 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:25:25,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:25,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:25:25,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:25:25,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:25:25,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:25:25,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 21:25:25,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:25,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:25,225 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:25,225 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:25:25,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:25:25,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:25:25,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:25,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:25:25,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:25:25,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:25:25,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:25:25,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 21:25:25,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:25,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:25,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:25,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:25:25,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:25:25,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 21:25:25,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:25,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:25:25,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:25:25,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:25:25,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:25:25,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 21:25:25,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:25,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:25,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:25,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:25:25,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:25:25,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:25:25,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:25,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:25:25,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:25:25,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:25:25,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:25:25,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 21:25:25,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:25,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:25,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:25,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:25:25,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:25:25,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 21:25:25,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:25,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:25:25,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:25:25,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:25:25,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:25:25,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 21:25:25,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:25,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:25,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:25,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:25:25,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:25:25,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 21:25:25,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:25,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:25:25,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:25:25,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:25:25,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:25:25,372 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 21:25:25,373 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [856004641] [2020-09-24 21:25:25,375 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:25:25,375 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 21:25:25,376 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906633330] [2020-09-24 21:25:25,384 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 21:25:25,384 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:25:25,402 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 21:25:25,404 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-24 21:25:25,407 INFO L87 Difference]: Start difference. First operand 315 states. Second operand 8 states. [2020-09-24 21:25:26,043 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 21:25:27,257 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 21:25:27,630 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:25:28,004 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 21:25:28,356 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:25:28,700 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 21:25:29,717 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 21:25:30,031 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 21:25:30,414 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 21:25:31,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:25:31,681 INFO L93 Difference]: Finished difference Result 621 states and 768 transitions. [2020-09-24 21:25:31,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-24 21:25:31,686 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 142 [2020-09-24 21:25:31,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:25:31,713 INFO L225 Difference]: With dead ends: 621 [2020-09-24 21:25:31,713 INFO L226 Difference]: Without dead ends: 417 [2020-09-24 21:25:31,720 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 16 SyntacticMatches, 5 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 21:25:31,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states. [2020-09-24 21:25:31,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 375. [2020-09-24 21:25:31,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 375 states. [2020-09-24 21:25:31,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 427 transitions. [2020-09-24 21:25:31,916 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 427 transitions. Word has length 142 [2020-09-24 21:25:31,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:25:31,918 INFO L479 AbstractCegarLoop]: Abstraction has 375 states and 427 transitions. [2020-09-24 21:25:31,918 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 21:25:31,918 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 427 transitions. [2020-09-24 21:25:31,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2020-09-24 21:25:31,932 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:25:31,933 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:25:31,933 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 21:25:31,933 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:25:31,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:25:31,934 INFO L82 PathProgramCache]: Analyzing trace with hash 124751411, now seen corresponding path program 1 times [2020-09-24 21:25:31,934 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:25:31,934 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1134692721] [2020-09-24 21:25:31,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:25:32,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:32,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:32,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:32,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:32,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:35,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:35,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:37,018 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:37,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 280 [2020-09-24 21:25:37,019 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-24 21:25:37,019 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-09-24 21:25:37,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:37,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:25:37,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-24 21:25:37,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-09-24 21:25:37,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:25:37,306 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 21:25:37,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:25:37,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:37,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:37,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:37,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 21:25:37,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:25:37,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 238 [2020-09-24 21:25:37,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:37,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:25:37,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:25:37,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-24 21:25:37,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:25:37,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 21:25:37,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:37,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:37,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:37,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:25:37,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:25:37,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:25:37,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:37,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:25:37,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:25:37,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:25:37,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:25:37,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 21:25:37,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:37,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:37,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:37,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:25:37,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:25:37,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:25:37,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:37,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:25:37,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:25:37,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:25:37,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:25:37,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 21:25:37,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:37,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:37,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:37,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:25:37,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:25:37,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 21:25:37,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:37,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:25:37,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:25:37,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:25:37,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:25:37,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 21:25:37,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:37,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:37,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:37,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:25:37,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:25:37,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:25:37,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:37,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:25:37,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:25:37,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:25:37,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:25:37,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-09-24 21:25:37,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:37,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:37,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:37,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 21:25:37,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:25:37,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-09-24 21:25:37,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:37,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:25:37,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-24 21:25:37,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-24 21:25:37,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:25:37,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:25:37,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:37,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:37,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:37,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-24 21:25:37,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:25:37,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 21:25:37,787 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:37,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:25:37,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:25:37,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 21:25:37,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:25:37,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:25:37,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:37,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:37,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:37,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:25:37,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:25:37,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:25:37,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:37,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:25:37,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:25:37,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:25:37,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7 [2020-09-24 21:25:37,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-24 21:25:37,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:37,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:37,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:37,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:37,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-24 21:25:37,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 21:25:37,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 162 [2020-09-24 21:25:37,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:37,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 21:25:37,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-24 21:25:37,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 21:25:37,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:25:37,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:25:37,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:38,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:38,093 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:38,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-24 21:25:38,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:25:38,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-09-24 21:25:38,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:38,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 21:25:38,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-24 21:25:38,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 21:25:38,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:25:38,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:25:38,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:38,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:38,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:38,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 21:25:38,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:25:38,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-09-24 21:25:38,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:38,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:25:38,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:25:38,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-24 21:25:38,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:25:38,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 21:25:38,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:38,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:38,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:38,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:25:38,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:25:38,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:25:38,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:38,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:25:38,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:25:38,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:25:38,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:25:38,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 21:25:38,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:38,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:38,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:38,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-24 21:25:38,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:25:38,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-24 21:25:38,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:38,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:25:38,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-24 21:25:38,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:25:38,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:25:38,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 21:25:38,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:38,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:38,268 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:38,268 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 21:25:38,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:25:38,269 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:25:38,269 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:38,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:25:38,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:25:38,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:25:38,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:25:38,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 21:25:38,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:38,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:38,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:38,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:25:38,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:25:38,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:25:38,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:38,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:25:38,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:25:38,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:25:38,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:25:38,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-24 21:25:38,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:38,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:38,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:38,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:25:38,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:25:38,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 21:25:38,290 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:38,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:25:38,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:25:38,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:25:38,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:25:38,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2020-09-24 21:25:38,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:38,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:38,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:38,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:25:38,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:25:38,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:25:38,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:38,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:25:38,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:25:38,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:25:38,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:25:38,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2020-09-24 21:25:38,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:38,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:38,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:38,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:25:38,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:25:38,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:25:38,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:38,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:25:38,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:25:38,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:25:38,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:25:38,371 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 21:25:38,371 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1134692721] [2020-09-24 21:25:38,371 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:25:38,372 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-24 21:25:38,372 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431177758] [2020-09-24 21:25:38,375 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-24 21:25:38,376 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:25:38,377 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-24 21:25:38,377 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-09-24 21:25:38,377 INFO L87 Difference]: Start difference. First operand 375 states and 427 transitions. Second operand 12 states. [2020-09-24 21:25:38,935 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 21:25:40,113 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 21:25:40,412 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:25:40,744 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 21:25:41,082 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 21:25:41,407 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:25:41,704 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 21:25:43,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:25:43,329 INFO L93 Difference]: Finished difference Result 750 states and 954 transitions. [2020-09-24 21:25:43,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-24 21:25:43,330 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 227 [2020-09-24 21:25:43,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:25:43,337 INFO L225 Difference]: With dead ends: 750 [2020-09-24 21:25:43,337 INFO L226 Difference]: Without dead ends: 485 [2020-09-24 21:25:43,342 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2020-09-24 21:25:43,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 485 states. [2020-09-24 21:25:43,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 485 to 383. [2020-09-24 21:25:43,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 383 states. [2020-09-24 21:25:43,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 432 transitions. [2020-09-24 21:25:43,426 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 432 transitions. Word has length 227 [2020-09-24 21:25:43,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:25:43,427 INFO L479 AbstractCegarLoop]: Abstraction has 383 states and 432 transitions. [2020-09-24 21:25:43,427 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-24 21:25:43,428 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 432 transitions. [2020-09-24 21:25:43,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2020-09-24 21:25:43,431 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:25:43,431 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, 1, 1, 1, 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 21:25:43,431 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 21:25:43,431 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:25:43,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:25:43,432 INFO L82 PathProgramCache]: Analyzing trace with hash -1556038905, now seen corresponding path program 1 times [2020-09-24 21:25:43,432 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:25:43,432 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [494104593] [2020-09-24 21:25:43,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:25:43,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:43,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:43,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:48,508 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:48,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 257 [2020-09-24 21:25:48,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 21:25:48,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5019 [2020-09-24 21:25:48,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:48,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-24 21:25:48,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-24 21:25:48,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 160 [2020-09-24 21:25:48,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:25:48,828 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 21:25:48,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:25:48,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:48,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:49,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:49,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 21:25:49,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:25:49,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 211 [2020-09-24 21:25:49,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:49,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:25:49,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:25:49,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-24 21:25:49,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:25:49,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 21:25:49,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:49,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:49,111 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:49,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:25:49,112 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:25:49,112 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:25:49,112 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:49,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:25:49,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:25:49,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:25:49,113 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:25:49,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 21:25:49,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:49,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:49,118 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:49,118 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:25:49,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:25:49,119 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:25:49,119 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:49,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:25:49,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:25:49,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:25:49,120 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:25:49,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 21:25:49,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:49,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:49,134 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:49,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:25:49,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:25:49,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 21:25:49,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:49,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:25:49,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:25:49,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:25:49,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:25:49,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 21:25:49,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:49,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:49,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:49,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:25:49,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:25:49,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:25:49,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:49,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:25:49,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:25:49,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:25:49,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:25:49,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-24 21:25:49,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:49,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:49,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:49,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:49,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-24 21:25:49,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 21:25:49,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 165 [2020-09-24 21:25:49,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:49,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:25:49,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:25:49,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 21:25:49,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:25:49,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:25:49,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:49,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:49,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:49,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:49,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-24 21:25:49,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 21:25:49,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 121 [2020-09-24 21:25:49,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:49,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:25:49,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:25:49,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:25:49,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:25:49,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:25:49,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:49,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:49,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:49,530 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:49,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 21:25:49,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 21:25:49,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-09-24 21:25:49,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:49,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:25:49,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:25:49,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:25:49,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:25:49,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 21:25:49,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:49,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:49,543 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:49,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:25:49,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:25:49,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 21:25:49,545 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:49,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:25:49,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:25:49,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:25:49,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:25:49,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 21:25:49,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:49,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:49,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:49,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-24 21:25:49,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:25:49,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 21:25:49,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:49,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:25:49,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:25:49,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:25:49,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:25:49,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 21:25:49,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:49,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:49,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:49,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 21:25:49,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:25:49,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:25:49,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:49,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:25:49,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:25:49,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:25:49,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:25:49,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 21:25:49,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:49,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:49,584 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:49,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:25:49,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:25:49,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:25:49,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:49,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:25:49,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:25:49,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:25:49,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:25:49,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-24 21:25:49,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:49,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:49,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:49,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:25:49,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:25:49,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:25:49,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:49,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:25:49,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:25:49,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:25:49,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:25:49,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2020-09-24 21:25:49,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:49,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:49,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:49,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:25:49,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:25:49,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 21:25:49,622 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:49,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:25:49,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:25:49,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:25:49,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:25:49,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2020-09-24 21:25:49,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:49,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:49,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:49,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:25:49,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:25:49,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:25:49,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:49,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:25:49,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:25:49,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:25:49,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:25:49,751 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 21:25:49,752 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [494104593] [2020-09-24 21:25:49,753 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:25:49,753 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 21:25:49,754 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731069960] [2020-09-24 21:25:49,755 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 21:25:49,756 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:25:49,756 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 21:25:49,756 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 21:25:49,757 INFO L87 Difference]: Start difference. First operand 383 states and 432 transitions. Second operand 9 states. [2020-09-24 21:25:50,446 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 21:25:51,994 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 21:25:52,306 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 21:25:52,639 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 21:25:53,004 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 21:25:53,379 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 21:25:53,906 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 21:25:54,228 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 21:25:55,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:25:55,657 INFO L93 Difference]: Finished difference Result 955 states and 1190 transitions. [2020-09-24 21:25:55,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-24 21:25:55,657 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 212 [2020-09-24 21:25:55,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:25:55,666 INFO L225 Difference]: With dead ends: 955 [2020-09-24 21:25:55,666 INFO L226 Difference]: Without dead ends: 682 [2020-09-24 21:25:55,668 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-09-24 21:25:55,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 682 states. [2020-09-24 21:25:55,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 682 to 581. [2020-09-24 21:25:55,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 581 states. [2020-09-24 21:25:55,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 581 states to 581 states and 671 transitions. [2020-09-24 21:25:55,741 INFO L78 Accepts]: Start accepts. Automaton has 581 states and 671 transitions. Word has length 212 [2020-09-24 21:25:55,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:25:55,742 INFO L479 AbstractCegarLoop]: Abstraction has 581 states and 671 transitions. [2020-09-24 21:25:55,742 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 21:25:55,742 INFO L276 IsEmpty]: Start isEmpty. Operand 581 states and 671 transitions. [2020-09-24 21:25:55,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2020-09-24 21:25:55,746 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:25:55,747 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:25:55,747 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 21:25:55,747 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:25:55,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:25:55,748 INFO L82 PathProgramCache]: Analyzing trace with hash -1798614864, now seen corresponding path program 1 times [2020-09-24 21:25:55,748 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:25:55,748 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1635421617] [2020-09-24 21:25:55,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:25:55,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:55,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:56,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:26:00,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:26:00,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:26:00,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 264 [2020-09-24 21:26:00,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 21:26:00,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-24 21:26:00,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:26:00,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 21:26:00,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-24 21:26:00,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-09-24 21:26:00,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:26:01,097 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 21:26:01,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:26:01,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:26:01,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:26:01,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:26:01,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 21:26:01,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:26:01,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 211 [2020-09-24 21:26:01,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:26:01,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:26:01,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:26:01,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-24 21:26:01,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:26:01,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 21:26:01,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:26:01,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:26:01,381 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:26:01,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:26:01,381 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:26:01,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 21:26:01,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:26:01,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:26:01,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:26:01,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:26:01,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:26:01,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 21:26:01,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:26:01,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:26:01,389 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:26:01,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:26:01,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:26:01,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:26:01,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:26:01,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:26:01,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:26:01,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:26:01,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:26:01,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 21:26:01,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:26:01,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:26:01,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:26:01,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:26:01,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:26:01,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 21:26:01,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:26:01,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:26:01,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:26:01,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:26:01,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:26:01,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 21:26:01,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:26:01,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:26:01,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:26:01,413 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:26:01,413 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:26:01,413 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 21:26:01,413 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:26:01,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:26:01,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:26:01,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:26:01,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:26:01,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-24 21:26:01,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:26:01,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:26:01,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:26:01,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 21:26:01,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:26:01,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 21:26:01,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:26:01,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:26:01,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 21:26:01,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 21:26:01,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:26:01,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-24 21:26:01,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:26:01,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:26:01,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:26:01,615 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:26:01,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-24 21:26:01,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 21:26:01,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 137 [2020-09-24 21:26:01,616 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:26:01,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:26:01,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-09-24 21:26:01,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-24 21:26:01,616 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:26:01,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:26:01,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:26:01,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:26:01,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:26:01,806 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:26:01,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-24 21:26:01,806 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 21:26:01,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 169 [2020-09-24 21:26:01,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:26:01,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:26:01,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:26:01,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-24 21:26:01,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:26:01,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:26:01,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:26:01,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:26:01,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:26:01,873 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:26:01,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 21:26:01,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 21:26:01,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-09-24 21:26:01,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:26:01,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:26:01,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:26:01,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 21:26:01,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:26:01,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 21:26:01,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:26:01,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:26:01,887 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:26:01,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:26:01,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:26:01,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 21:26:01,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:26:01,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:26:01,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:26:01,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 21:26:01,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:26:01,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 21:26:01,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:26:01,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:26:01,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:26:01,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-24 21:26:01,916 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:26:01,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-24 21:26:01,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:26:01,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:26:01,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:26:01,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-24 21:26:01,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:26:01,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 21:26:01,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:26:01,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:26:01,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:26:01,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 21:26:01,927 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:26:01,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:26:01,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:26:01,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:26:01,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:26:01,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:26:01,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:26:01,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 21:26:01,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:26:01,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:26:01,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:26:01,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:26:01,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:26:01,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 21:26:01,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:26:01,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:26:01,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:26:01,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:26:01,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:26:01,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-24 21:26:01,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:26:01,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:26:01,940 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:26:01,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:26:01,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:26:01,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:26:01,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:26:01,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:26:01,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:26:01,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:26:01,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:26:01,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2020-09-24 21:26:01,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:26:01,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:26:01,953 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:26:01,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:26:01,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:26:01,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:26:01,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:26:01,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:26:01,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:26:01,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:26:01,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:26:01,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2020-09-24 21:26:01,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:26:01,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:26:01,959 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:26:01,959 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:26:01,959 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:26:01,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 21:26:01,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:26:01,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:26:01,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:26:01,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:26:01,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:26:02,006 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 21:26:02,007 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1635421617] [2020-09-24 21:26:02,007 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:26:02,007 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 21:26:02,007 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794208559] [2020-09-24 21:26:02,008 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 21:26:02,008 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:26:02,008 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 21:26:02,009 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-09-24 21:26:02,009 INFO L87 Difference]: Start difference. First operand 581 states and 671 transitions. Second operand 10 states. [2020-09-24 21:26:02,524 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 21:26:03,302 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 21:26:05,240 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 186