/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_spec2_product55.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 21:20:17,991 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 21:20:17,995 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 21:20:18,023 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 21:20:18,024 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 21:20:18,025 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 21:20:18,027 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 21:20:18,029 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 21:20:18,031 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 21:20:18,032 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 21:20:18,033 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 21:20:18,035 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 21:20:18,035 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 21:20:18,036 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 21:20:18,038 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 21:20:18,039 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 21:20:18,040 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 21:20:18,042 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 21:20:18,044 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 21:20:18,046 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 21:20:18,048 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 21:20:18,050 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 21:20:18,051 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 21:20:18,053 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 21:20:18,057 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 21:20:18,057 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 21:20:18,057 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 21:20:18,059 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 21:20:18,059 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 21:20:18,061 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 21:20:18,061 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 21:20:18,062 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 21:20:18,063 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 21:20:18,064 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 21:20:18,065 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 21:20:18,066 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 21:20:18,067 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 21:20:18,067 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 21:20:18,067 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 21:20:18,068 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 21:20:18,069 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 21:20:18,071 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 21:20:18,109 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 21:20:18,109 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 21:20:18,111 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 21:20:18,111 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 21:20:18,112 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 21:20:18,112 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 21:20:18,112 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 21:20:18,112 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 21:20:18,112 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 21:20:18,114 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 21:20:18,114 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 21:20:18,114 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 21:20:18,114 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 21:20:18,114 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 21:20:18,114 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 21:20:18,116 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 21:20:18,116 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 21:20:18,116 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 21:20:18,117 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 21:20:18,117 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 21:20:18,118 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 21:20:18,118 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 21:20:18,118 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 21:20:18,118 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 21:20:18,118 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 21:20:18,119 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 21:20:18,119 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 21:20:18,119 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 21:20:18,119 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 21:20:18,119 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 21:20:18,565 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 21:20:18,594 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 21:20:18,599 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 21:20:18,602 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 21:20:18,603 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 21:20:18,604 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product55.cil.c [2020-09-24 21:20:18,701 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7b0287c80/6de570a967004f1ebf6d7a04578ba9df/FLAGea9de141d [2020-09-24 21:20:19,397 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 21:20:19,403 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec2_product55.cil.c [2020-09-24 21:20:19,430 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7b0287c80/6de570a967004f1ebf6d7a04578ba9df/FLAGea9de141d [2020-09-24 21:20:19,593 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7b0287c80/6de570a967004f1ebf6d7a04578ba9df [2020-09-24 21:20:19,608 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 21:20:19,614 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 21:20:19,615 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 21:20:19,616 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 21:20:19,620 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 21:20:19,621 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 09:20:19" (1/1) ... [2020-09-24 21:20:19,626 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27423965 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:20:19, skipping insertion in model container [2020-09-24 21:20:19,626 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 09:20:19" (1/1) ... [2020-09-24 21:20:19,635 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 21:20:19,683 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 21:20:20,163 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 21:20:20,178 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 21:20:20,283 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 21:20:20,336 INFO L208 MainTranslator]: Completed translation [2020-09-24 21:20:20,337 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:20:20 WrapperNode [2020-09-24 21:20:20,337 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 21:20:20,338 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 21:20:20,338 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 21:20:20,338 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 21:20:20,353 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:20:20" (1/1) ... [2020-09-24 21:20:20,354 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:20:20" (1/1) ... [2020-09-24 21:20:20,375 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:20:20" (1/1) ... [2020-09-24 21:20:20,376 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:20:20" (1/1) ... [2020-09-24 21:20:20,429 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:20:20" (1/1) ... [2020-09-24 21:20:20,439 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:20:20" (1/1) ... [2020-09-24 21:20:20,445 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:20:20" (1/1) ... [2020-09-24 21:20:20,454 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 21:20:20,455 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 21:20:20,455 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 21:20:20,455 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 21:20:20,457 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:20:20" (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 21:20:20,567 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 21:20:20,568 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 21:20:20,568 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 21:20:20,568 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 21:20:20,568 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 21:20:20,569 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 21:20:20,569 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 21:20:20,569 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 21:20:20,570 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 21:20:20,571 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 21:20:20,571 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 21:20:20,571 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 21:20:20,571 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 21:20:20,571 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 21:20:20,571 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-24 21:20:20,572 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 21:20:20,573 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 21:20:20,573 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 21:20:20,573 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 21:20:20,574 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-24 21:20:20,574 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 21:20:20,574 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 21:20:20,575 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 21:20:20,575 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 21:20:20,575 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 21:20:20,576 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 21:20:20,576 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 21:20:20,577 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-24 21:20:20,577 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-24 21:20:20,577 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 21:20:20,577 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 21:20:20,577 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 21:20:20,577 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 21:20:20,578 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 21:20:20,578 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 21:20:20,578 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-09-24 21:20:20,578 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-09-24 21:20:20,578 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 21:20:20,578 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 21:20:20,579 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 21:20:20,579 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 21:20:20,579 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 21:20:20,579 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 21:20:20,579 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 21:20:20,580 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 21:20:20,581 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 21:20:20,581 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 21:20:20,581 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 21:20:20,581 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 21:20:20,581 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 21:20:20,582 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 21:20:20,582 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 21:20:20,582 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 21:20:20,583 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 21:20:20,583 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 21:20:20,583 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 21:20:20,583 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 21:20:20,583 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-24 21:20:20,583 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 21:20:20,584 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-24 21:20:20,584 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 21:20:20,584 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 21:20:20,584 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 21:20:20,584 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 21:20:20,585 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 21:20:20,585 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 21:20:20,585 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 21:20:20,585 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-09-24 21:20:20,585 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 21:20:20,586 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 21:20:20,586 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 21:20:20,587 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 21:20:20,588 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-24 21:20:20,589 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-24 21:20:20,589 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 21:20:20,589 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 21:20:20,589 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 21:20:20,589 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 21:20:20,589 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 21:20:20,590 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 21:20:20,590 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 21:20:20,590 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 21:20:20,591 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 21:20:20,591 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 21:20:20,591 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 21:20:20,591 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 21:20:20,592 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 21:20:20,592 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 21:20:20,592 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 21:20:20,592 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 21:20:20,592 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 21:20:20,592 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 21:20:20,592 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-09-24 21:20:20,593 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 21:20:20,593 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 21:20:20,593 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 21:20:20,593 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 21:20:20,593 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 21:20:20,593 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 21:20:20,593 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 21:20:21,819 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 21:20:21,819 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 21:20:21,827 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 09:20:21 BoogieIcfgContainer [2020-09-24 21:20:21,827 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 21:20:21,828 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 21:20:21,829 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 21:20:21,833 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 21:20:21,833 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 09:20:19" (1/3) ... [2020-09-24 21:20:21,834 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cd75dbc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 09:20:21, skipping insertion in model container [2020-09-24 21:20:21,834 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:20:20" (2/3) ... [2020-09-24 21:20:21,835 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cd75dbc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 09:20:21, skipping insertion in model container [2020-09-24 21:20:21,835 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 09:20:21" (3/3) ... [2020-09-24 21:20:21,837 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product55.cil.c [2020-09-24 21:20:21,850 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 21:20:21,862 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 21:20:21,886 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 21:20:21,921 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 21:20:21,922 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 21:20:21,922 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 21:20:21,922 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 21:20:21,922 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 21:20:21,922 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 21:20:21,923 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 21:20:21,923 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 21:20:21,955 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states. [2020-09-24 21:20:21,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-24 21:20:21,974 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:20:21,976 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:20:21,977 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:20:21,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:20:21,985 INFO L82 PathProgramCache]: Analyzing trace with hash -415680263, now seen corresponding path program 1 times [2020-09-24 21:20:21,995 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:20:21,995 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [942550704] [2020-09-24 21:20:21,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:20:22,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:22,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:22,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:24,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:25,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:25,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:27,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:27,477 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:27,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-24 21:20:27,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-24 21:20:27,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5110 [2020-09-24 21:20:27,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:27,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 21:20:27,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-24 21:20:27,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-09-24 21:20:27,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 21:20:28,004 WARN L193 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 21:20:28,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:20:28,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:28,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:28,349 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:28,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 21:20:28,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:28,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 302 [2020-09-24 21:20:28,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:28,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:20:28,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:28,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-24 21:20:28,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:20:28,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 21:20:28,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:28,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:28,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:28,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:20:28,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:28,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:20:28,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:28,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:20:28,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:28,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:20:28,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:20:28,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 21:20:28,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:28,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:28,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:28,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:20:28,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:28,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:20:28,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:28,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:20:28,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:28,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:20:28,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:20:28,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 21:20:28,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:28,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:28,457 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:28,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:20:28,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:28,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 21:20:28,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:28,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:20:28,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:28,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:20:28,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:20:28,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 21:20:28,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:28,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:28,467 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:28,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:20:28,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:28,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:20:28,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:28,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:20:28,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:28,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:20:28,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:20:28,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 21:20:28,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:28,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:28,492 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:28,492 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:20:28,492 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:28,493 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:20:28,493 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:28,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:20:28,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:28,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 21:20:28,494 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:20:28,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-24 21:20:28,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:28,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:28,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:28,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:20:28,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:28,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 21:20:28,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:28,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:20:28,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:28,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:20:28,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:20:28,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-24 21:20:28,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:28,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:28,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:28,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:20:28,551 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:28,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:20:28,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:28,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:20:28,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:20:28,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:20:28,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:20:28,614 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 21:20:28,615 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [942550704] [2020-09-24 21:20:28,618 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:20:28,618 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 21:20:28,619 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508494034] [2020-09-24 21:20:28,629 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 21:20:28,629 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:20:28,648 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 21:20:28,650 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 21:20:28,655 INFO L87 Difference]: Start difference. First operand 347 states. Second operand 9 states. [2020-09-24 21:20:29,431 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 21:20:30,522 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 21:20:30,858 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-24 21:20:31,227 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:20:31,624 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 21:20:31,991 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:20:32,953 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 21:20:33,354 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 21:20:33,963 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 21:20:35,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:20:35,786 INFO L93 Difference]: Finished difference Result 760 states and 921 transitions. [2020-09-24 21:20:35,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-24 21:20:35,789 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 148 [2020-09-24 21:20:35,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:20:35,814 INFO L225 Difference]: With dead ends: 760 [2020-09-24 21:20:35,816 INFO L226 Difference]: Without dead ends: 526 [2020-09-24 21:20:35,824 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=99, Invalid=281, Unknown=0, NotChecked=0, Total=380 [2020-09-24 21:20:35,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states. [2020-09-24 21:20:35,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 449. [2020-09-24 21:20:35,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 449 states. [2020-09-24 21:20:35,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 449 states to 449 states and 504 transitions. [2020-09-24 21:20:35,992 INFO L78 Accepts]: Start accepts. Automaton has 449 states and 504 transitions. Word has length 148 [2020-09-24 21:20:35,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:20:35,994 INFO L479 AbstractCegarLoop]: Abstraction has 449 states and 504 transitions. [2020-09-24 21:20:35,994 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 21:20:35,994 INFO L276 IsEmpty]: Start isEmpty. Operand 449 states and 504 transitions. [2020-09-24 21:20:35,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-09-24 21:20:36,000 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:20:36,000 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] [2020-09-24 21:20:36,001 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 21:20:36,001 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:20:36,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:20:36,001 INFO L82 PathProgramCache]: Analyzing trace with hash -817323236, now seen corresponding path program 1 times [2020-09-24 21:20:36,002 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:20:36,002 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1806868712] [2020-09-24 21:20:36,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:20:36,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:36,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:36,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:37,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:37,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:41,105 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:41,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-09-24 21:20:41,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 21:20:41,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5041 [2020-09-24 21:20:41,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:41,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-24 21:20:41,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-24 21:20:41,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-09-24 21:20:41,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:20:41,458 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 21:20:41,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:20:41,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:41,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:41,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:41,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 21:20:41,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:41,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 252 [2020-09-24 21:20:41,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:41,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:20:41,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:41,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 21:20:41,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:20:41,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 21:20:41,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:41,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:41,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:41,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:20:41,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:41,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:20:41,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:41,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:20:41,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:41,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:20:41,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:20:41,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 21:20:41,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:41,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:41,802 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:41,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:20:41,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:41,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:20:41,803 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:41,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:20:41,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:41,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:20:41,804 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:20:41,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 21:20:41,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:41,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:41,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:41,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:20:41,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:41,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 21:20:41,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:41,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:20:41,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:41,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:20:41,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:20:41,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 21:20:41,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:41,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:41,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:41,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:20:41,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:41,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:20:41,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:41,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:20:41,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:41,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:20:41,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:20:41,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 21:20:41,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:41,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:41,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:41,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:20:41,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:41,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:20:41,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:41,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:20:41,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:41,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 21:20:41,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:20:41,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-24 21:20:41,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:41,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:41,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:41,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 21:20:41,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:41,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 21:20:41,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:41,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:20:41,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:41,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 21:20:41,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:20:41,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-09-24 21:20:41,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:41,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:41,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:41,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:20:41,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:41,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:20:41,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:41,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:20:41,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:41,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:20:41,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:20:41,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-09-24 21:20:41,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:41,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:41,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:41,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:20:41,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:41,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 21:20:41,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:41,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:20:41,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:41,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:20:41,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:20:41,953 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 21:20:41,954 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1806868712] [2020-09-24 21:20:41,954 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:20:41,954 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 21:20:41,954 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252309188] [2020-09-24 21:20:41,957 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 21:20:41,957 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:20:41,957 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 21:20:41,957 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-24 21:20:41,958 INFO L87 Difference]: Start difference. First operand 449 states and 504 transitions. Second operand 10 states. [2020-09-24 21:20:42,559 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 21:20:43,895 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:20:44,512 WARN L193 SmtUtils]: Spent 576.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 193 [2020-09-24 21:20:44,877 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:20:45,220 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 21:20:45,566 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:20:46,390 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 21:20:46,688 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 21:20:47,054 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 21:20:48,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:20:48,614 INFO L93 Difference]: Finished difference Result 1073 states and 1319 transitions. [2020-09-24 21:20:48,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-09-24 21:20:48,614 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 163 [2020-09-24 21:20:48,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:20:48,624 INFO L225 Difference]: With dead ends: 1073 [2020-09-24 21:20:48,624 INFO L226 Difference]: Without dead ends: 739 [2020-09-24 21:20:48,630 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=159, Invalid=441, Unknown=0, NotChecked=0, Total=600 [2020-09-24 21:20:48,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 739 states. [2020-09-24 21:20:48,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 739 to 622. [2020-09-24 21:20:48,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 622 states. [2020-09-24 21:20:48,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 622 states to 622 states and 711 transitions. [2020-09-24 21:20:48,732 INFO L78 Accepts]: Start accepts. Automaton has 622 states and 711 transitions. Word has length 163 [2020-09-24 21:20:48,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:20:48,733 INFO L479 AbstractCegarLoop]: Abstraction has 622 states and 711 transitions. [2020-09-24 21:20:48,733 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 21:20:48,733 INFO L276 IsEmpty]: Start isEmpty. Operand 622 states and 711 transitions. [2020-09-24 21:20:48,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2020-09-24 21:20:48,737 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:20:48,737 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] [2020-09-24 21:20:48,738 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 21:20:48,738 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:20:48,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:20:48,738 INFO L82 PathProgramCache]: Analyzing trace with hash -153528691, now seen corresponding path program 1 times [2020-09-24 21:20:48,739 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:20:48,739 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [520835880] [2020-09-24 21:20:48,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:20:48,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:48,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:49,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:52,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:52,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 251 [2020-09-24 21:20:52,991 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 21:20:52,991 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4193 [2020-09-24 21:20:52,991 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:52,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 21:20:52,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 124 [2020-09-24 21:20:52,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-09-24 21:20:52,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:20:53,363 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 21:20:53,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:20:53,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:53,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:53,491 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:53,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 21:20:53,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:53,493 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 114 [2020-09-24 21:20:53,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:53,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:20:53,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:53,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:20:53,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:20:53,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 21:20:53,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:53,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:53,548 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:53,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:20:53,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:53,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:20:53,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:53,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:20:53,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:53,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:20:53,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:20:53,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 21:20:53,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:53,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:53,554 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:53,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:20:53,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:53,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:20:53,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:53,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:20:53,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:53,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:20:53,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:20:53,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 21:20:53,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:53,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:53,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:53,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:20:53,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:53,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 21:20:53,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:53,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:20:53,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:53,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:20:53,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:20:53,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 21:20:53,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:53,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:53,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:53,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:20:53,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:53,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:20:53,574 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:53,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:20:53,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:53,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:20:53,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-24 21:20:53,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 21:20:53,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:53,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:53,599 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:53,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:20:53,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:53,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:20:53,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:53,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:20:53,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:53,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-24 21:20:53,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:20:53,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-24 21:20:53,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:53,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:53,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:53,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 21:20:53,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:53,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 21:20:53,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:53,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:20:53,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:53,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 21:20:53,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:20:53,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-24 21:20:53,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:53,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:53,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:53,848 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:53,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-24 21:20:53,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 21:20:53,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 198 [2020-09-24 21:20:53,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:53,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:20:53,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:53,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-09-24 21:20:53,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:20:53,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:20:53,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:53,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:53,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:53,969 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:53,969 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 21:20:53,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 21:20:53,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-09-24 21:20:53,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:53,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:20:53,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:53,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:20:53,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:20:53,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:20:53,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:53,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:53,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:54,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:54,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 21:20:54,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 21:20:54,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-09-24 21:20:54,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:54,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:20:54,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:54,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:20:54,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:20:54,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:20:54,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:54,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:54,086 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:54,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 21:20:54,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:54,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 21:20:54,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:54,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:20:54,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:54,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:20:54,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:20:54,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 21:20:54,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:54,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:54,096 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:54,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:20:54,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:54,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:20:54,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:54,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:20:54,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:54,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:20:54,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:20:54,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 21:20:54,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:54,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:54,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:54,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:20:54,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:54,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:20:54,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:54,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:20:54,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:54,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:20:54,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:20:54,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2020-09-24 21:20:54,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:54,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:54,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:54,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:20:54,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:54,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:20:54,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:54,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:20:54,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:54,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:20:54,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:20:54,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2020-09-24 21:20:54,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:54,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:54,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:54,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:20:54,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:54,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:20:54,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:54,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:20:54,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:54,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:20:54,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:20:54,200 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 21:20:54,201 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [520835880] [2020-09-24 21:20:54,201 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:20:54,201 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 21:20:54,201 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031256860] [2020-09-24 21:20:54,202 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 21:20:54,202 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:20:54,202 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 21:20:54,203 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-24 21:20:54,203 INFO L87 Difference]: Start difference. First operand 622 states and 711 transitions. Second operand 7 states. [2020-09-24 21:20:54,764 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 21:20:58,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:20:58,324 INFO L93 Difference]: Finished difference Result 1402 states and 1799 transitions. [2020-09-24 21:20:58,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-24 21:20:58,325 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 206 [2020-09-24 21:20:58,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:20:58,338 INFO L225 Difference]: With dead ends: 1402 [2020-09-24 21:20:58,338 INFO L226 Difference]: Without dead ends: 1399 [2020-09-24 21:20:58,339 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=100, Invalid=206, Unknown=0, NotChecked=0, Total=306 [2020-09-24 21:20:58,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1399 states. [2020-09-24 21:20:58,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1399 to 1082. [2020-09-24 21:20:58,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1082 states. [2020-09-24 21:20:58,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1082 states to 1082 states and 1280 transitions. [2020-09-24 21:20:58,516 INFO L78 Accepts]: Start accepts. Automaton has 1082 states and 1280 transitions. Word has length 206 [2020-09-24 21:20:58,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:20:58,517 INFO L479 AbstractCegarLoop]: Abstraction has 1082 states and 1280 transitions. [2020-09-24 21:20:58,517 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 21:20:58,517 INFO L276 IsEmpty]: Start isEmpty. Operand 1082 states and 1280 transitions. [2020-09-24 21:20:58,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2020-09-24 21:20:58,524 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:20:58,525 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 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, 1] [2020-09-24 21:20:58,525 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 21:20:58,525 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:20:58,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:20:58,526 INFO L82 PathProgramCache]: Analyzing trace with hash 1814572884, now seen corresponding path program 1 times [2020-09-24 21:20:58,526 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:20:58,526 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1944704183] [2020-09-24 21:20:58,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:20:58,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:58,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:58,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:58,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:58,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:59,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:21:01,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:21:03,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:21:03,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 335 [2020-09-24 21:21:03,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-24 21:21:03,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5051 [2020-09-24 21:21:03,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:21:03,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 21:21:03,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-24 21:21:03,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-09-24 21:21:03,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:21:03,967 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 21:21:03,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:21:03,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:21:04,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:21:04,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:21:04,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 21:21:04,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:21:04,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 258 [2020-09-24 21:21:04,255 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:21:04,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:21:04,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:21:04,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-24 21:21:04,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:21:04,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 21:21:04,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:21:04,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:21:04,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:21:04,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:21:04,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:21:04,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 21:21:04,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:21:04,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:21:04,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:21:04,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:21:04,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:21:04,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 21:21:04,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:21:04,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:21:04,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:21:04,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:21:04,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:21:04,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 21:21:04,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:21:04,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:21:04,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:21:04,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:21:04,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:21:04,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 21:21:04,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:21:04,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:21:04,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:21:04,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:21:04,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:21:04,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 21:21:04,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:21:04,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:21:04,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:21:04,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:21:04,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:21:04,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 21:21:04,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:21:04,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:21:04,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:21:04,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:21:04,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:21:04,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 21:21:04,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:21:04,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:21:04,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:21:04,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:21:04,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:21:04,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 21:21:04,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:21:04,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:21:04,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:21:04,395 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:21:04,395 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:21:04,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 21:21:04,396 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:21:04,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:21:04,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:21:04,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 21:21:04,397 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:21:04,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-24 21:21:04,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:21:04,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:21:04,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:21:04,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 21:21:04,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:21:04,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 21:21:04,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:21:04,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:21:04,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:21:04,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 21:21:04,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:21:04,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 21:21:04,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:21:04,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:21:04,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:21:04,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-09-24 21:21:04,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:21:04,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 21:21:04,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:21:04,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:21:04,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-24 21:21:04,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-24 21:21:04,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:21:04,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:21:04,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:21:04,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:21:04,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:21:04,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-24 21:21:04,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:21:04,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-24 21:21:04,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:21:04,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:21:04,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:21:04,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-24 21:21:04,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 21:21:04,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:21:04,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:21:04,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:21:04,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:21:04,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:21:04,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:21:04,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 21:21:04,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:21:04,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:21:04,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:21:04,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:21:04,535 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:21:04,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-09-24 21:21:04,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:21:04,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:21:04,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:21:04,707 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:21:04,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-09-24 21:21:04,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 21:21:04,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 161 [2020-09-24 21:21:04,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:21:04,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 21:21:04,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 39 [2020-09-24 21:21:04,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 21:21:04,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:21:04,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:21:04,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:21:04,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:21:04,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:21:04,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-24 21:21:04,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:21:04,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-09-24 21:21:04,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:21:04,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 21:21:04,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-24 21:21:04,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 21:21:04,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:21:04,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:21:04,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:21:04,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:21:04,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:21:04,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 21:21:04,927 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:21:04,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 84 [2020-09-24 21:21:04,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:21:04,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 21:21:04,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-24 21:21:04,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 21:21:04,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:21:04,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:21:04,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:21:04,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:21:05,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:21:05,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 21:21:05,019 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:21:05,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-09-24 21:21:05,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:21:05,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 21:21:05,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-24 21:21:05,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 21:21:05,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:21:05,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:21:05,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:21:05,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:21:05,118 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:21:05,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 21:21:05,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:21:05,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-09-24 21:21:05,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:21:05,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:21:05,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:21:05,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-24 21:21:05,122 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:21:05,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 21:21:05,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:21:05,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:21:05,219 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:21:05,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:21:05,220 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:21:05,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 21:21:05,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:21:05,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:21:05,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:21:05,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:21:05,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:21:05,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 21:21:05,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:21:05,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:21:05,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:21:05,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:21:05,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:21:05,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:21:05,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:21:05,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:21:05,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 21:21:05,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:21:05,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:21:05,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-09-24 21:21:05,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:21:05,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:21:05,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:21:05,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-24 21:21:05,269 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:21:05,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-24 21:21:05,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:21:05,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:21:05,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 33 [2020-09-24 21:21:05,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:21:05,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:21:05,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:21:05,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:21:05,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:21:05,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:21:05,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:21:05,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:21:05,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:21:05,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:21:05,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:21:05,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:21:05,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:21:05,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:21:05,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-24 21:21:05,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:21:05,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:21:05,292 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:21:05,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:21:05,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:21:05,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:21:05,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:21:05,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:21:05,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:21:05,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:21:05,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:21:05,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2020-09-24 21:21:05,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:21:05,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:21:05,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:21:05,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:21:05,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:21:05,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:21:05,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:21:05,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:21:05,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 21:21:05,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:21:05,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:21:05,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2020-09-24 21:21:05,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:21:05,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:21:05,344 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:21:05,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:21:05,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:21:05,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:21:05,345 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:21:05,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:21:05,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:21:05,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:21:05,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:21:05,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2020-09-24 21:21:05,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:21:05,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:21:05,355 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:21:05,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:21:05,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:21:05,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:21:05,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:21:05,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:21:05,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:21:05,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:21:05,358 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:21:05,511 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2020-09-24 21:21:05,512 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1944704183] [2020-09-24 21:21:05,512 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:21:05,513 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-09-24 21:21:05,513 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593259224] [2020-09-24 21:21:05,515 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-09-24 21:21:05,515 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:21:05,516 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-09-24 21:21:05,516 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2020-09-24 21:21:05,516 INFO L87 Difference]: Start difference. First operand 1082 states and 1280 transitions. Second operand 15 states. [2020-09-24 21:21:06,271 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 21:21:07,305 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 189