/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.3 --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_spec5_product39.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 12:10:17,941 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 12:10:17,945 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 12:10:17,973 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 12:10:17,973 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 12:10:17,974 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 12:10:17,976 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 12:10:17,978 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 12:10:17,980 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 12:10:17,981 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 12:10:17,982 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 12:10:17,984 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 12:10:17,984 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 12:10:17,985 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 12:10:17,987 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 12:10:17,988 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 12:10:17,989 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 12:10:17,990 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 12:10:17,992 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 12:10:17,994 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 12:10:17,995 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 12:10:17,996 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 12:10:17,998 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 12:10:17,999 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 12:10:18,001 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 12:10:18,002 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 12:10:18,002 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 12:10:18,003 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 12:10:18,003 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 12:10:18,005 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 12:10:18,005 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 12:10:18,006 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 12:10:18,007 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 12:10:18,011 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 12:10:18,012 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 12:10:18,012 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 12:10:18,014 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 12:10:18,014 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 12:10:18,015 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 12:10:18,016 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 12:10:18,017 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 12:10:18,018 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 [2020-09-25 12:10:18,079 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 12:10:18,079 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 12:10:18,080 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 12:10:18,081 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 12:10:18,081 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 12:10:18,081 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 12:10:18,081 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 12:10:18,082 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 12:10:18,085 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 12:10:18,085 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 12:10:18,085 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 12:10:18,086 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 12:10:18,086 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 12:10:18,086 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 12:10:18,086 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 12:10:18,086 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 12:10:18,087 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 12:10:18,089 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 12:10:18,089 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 12:10:18,090 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 12:10:18,090 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 12:10:18,090 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 12:10:18,090 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 12:10:18,091 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 12:10:18,091 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 12:10:18,091 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 12:10:18,091 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 12:10:18,091 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 12:10:18,092 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 12:10:18,092 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=SMALLESTAMONGWIDE;tolerance=0.3;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=SMALLESTAMONGWIDE;tolerance=0.3;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=SMALLESTAMONGWIDE;tolerance=0.3;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=SMALLESTAMONGWIDE;tolerance=0.3;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=SMALLESTAMONGWIDE;tolerance=0.3;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=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; [2020-09-25 12:10:18,555 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 12:10:18,572 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 12:10:18,576 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 12:10:18,578 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 12:10:18,579 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 12:10:18,580 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product39.cil.c [2020-09-25 12:10:18,656 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2dcbab830/36044424315e43daa6678b2dc5a81a2f/FLAG52491b665 [2020-09-25 12:10:19,284 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 12:10:19,287 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec5_product39.cil.c [2020-09-25 12:10:19,308 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2dcbab830/36044424315e43daa6678b2dc5a81a2f/FLAG52491b665 [2020-09-25 12:10:19,544 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2dcbab830/36044424315e43daa6678b2dc5a81a2f [2020-09-25 12:10:19,557 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 12:10:19,564 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 12:10:19,565 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 12:10:19,565 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 12:10:19,569 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 12:10:19,570 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:10:19" (1/1) ... [2020-09-25 12:10:19,575 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67e77f45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:10:19, skipping insertion in model container [2020-09-25 12:10:19,575 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:10:19" (1/1) ... [2020-09-25 12:10:19,584 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 12:10:19,660 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 12:10:20,048 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 12:10:20,083 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 12:10:20,283 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 12:10:20,327 INFO L208 MainTranslator]: Completed translation [2020-09-25 12:10:20,327 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:10:20 WrapperNode [2020-09-25 12:10:20,328 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 12:10:20,329 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 12:10:20,329 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 12:10:20,329 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 12:10:20,344 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:10:20" (1/1) ... [2020-09-25 12:10:20,344 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:10:20" (1/1) ... [2020-09-25 12:10:20,366 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:10:20" (1/1) ... [2020-09-25 12:10:20,366 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:10:20" (1/1) ... [2020-09-25 12:10:20,409 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:10:20" (1/1) ... [2020-09-25 12:10:20,422 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:10:20" (1/1) ... [2020-09-25 12:10:20,428 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:10:20" (1/1) ... [2020-09-25 12:10:20,453 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 12:10:20,453 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 12:10:20,453 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 12:10:20,458 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 12:10:20,459 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:10:20" (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 [2020-09-25 12:10:20,565 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 12:10:20,566 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 12:10:20,566 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 12:10:20,566 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 12:10:20,566 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 12:10:20,567 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 12:10:20,568 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 12:10:20,569 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 12:10:20,569 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 12:10:20,569 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 12:10:20,569 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 12:10:20,569 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 12:10:20,570 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 12:10:20,570 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 12:10:20,570 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 12:10:20,571 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 12:10:20,571 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 12:10:20,571 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 12:10:20,571 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 12:10:20,572 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 12:10:20,572 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 12:10:20,573 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 12:10:20,573 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 12:10:20,573 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 12:10:20,573 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 12:10:20,574 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2020-09-25 12:10:20,574 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2020-09-25 12:10:20,574 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2020-09-25 12:10:20,574 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 12:10:20,575 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 12:10:20,575 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 12:10:20,575 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 12:10:20,575 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 12:10:20,575 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 12:10:20,575 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 12:10:20,575 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 12:10:20,576 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 12:10:20,576 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 12:10:20,576 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 12:10:20,578 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 12:10:20,579 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 12:10:20,579 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 12:10:20,579 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 12:10:20,579 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 12:10:20,579 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 12:10:20,581 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 12:10:20,581 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 12:10:20,581 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 12:10:20,582 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 12:10:20,582 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 12:10:20,582 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 12:10:20,583 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 12:10:20,583 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 12:10:20,583 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 12:10:20,583 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 12:10:20,584 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 12:10:20,584 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 12:10:20,584 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 12:10:20,584 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 12:10:20,584 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2020-09-25 12:10:20,584 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2020-09-25 12:10:20,585 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 12:10:20,585 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 12:10:20,585 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 12:10:20,585 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 12:10:20,585 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 12:10:20,585 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 12:10:20,585 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 12:10:20,586 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 12:10:20,586 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 12:10:20,586 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 12:10:20,586 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 12:10:20,586 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2020-09-25 12:10:20,587 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 12:10:20,587 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 12:10:20,587 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 12:10:20,587 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 12:10:20,587 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 12:10:20,587 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 12:10:20,588 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 12:10:20,588 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 12:10:20,588 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 12:10:20,588 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 12:10:20,588 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 12:10:20,588 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 12:10:20,588 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 12:10:20,589 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 12:10:20,589 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 12:10:20,589 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 12:10:20,589 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 12:10:20,589 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 12:10:20,589 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 12:10:20,590 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 12:10:20,590 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 12:10:20,590 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 12:10:20,590 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 12:10:21,780 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 12:10:21,781 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 12:10:21,789 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:10:21 BoogieIcfgContainer [2020-09-25 12:10:21,789 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 12:10:21,791 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 12:10:21,791 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 12:10:21,795 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 12:10:21,795 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 12:10:19" (1/3) ... [2020-09-25 12:10:21,796 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63db1856 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:10:21, skipping insertion in model container [2020-09-25 12:10:21,797 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:10:20" (2/3) ... [2020-09-25 12:10:21,797 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63db1856 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:10:21, skipping insertion in model container [2020-09-25 12:10:21,814 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:10:21" (3/3) ... [2020-09-25 12:10:21,816 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product39.cil.c [2020-09-25 12:10:21,829 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 12:10:21,841 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 12:10:21,866 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 12:10:21,903 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 12:10:21,904 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 12:10:21,904 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 12:10:21,904 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 12:10:21,904 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 12:10:21,904 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 12:10:21,907 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 12:10:21,907 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 12:10:21,953 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states. [2020-09-25 12:10:21,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-09-25 12:10:21,991 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:10:21,994 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-09-25 12:10:21,996 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:10:22,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:10:22,006 INFO L82 PathProgramCache]: Analyzing trace with hash 938593778, now seen corresponding path program 1 times [2020-09-25 12:10:22,021 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:10:22,021 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1237196440] [2020-09-25 12:10:22,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:10:22,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:10:22,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:22,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:24,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:24,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:27,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:27,457 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:10:27,457 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 197 [2020-09-25 12:10:27,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 12:10:27,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-09-25 12:10:27,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:10:27,462 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:10:27,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 12:10:27,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-25 12:10:27,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-09-25 12:10:27,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 14 [2020-09-25 12:10:28,004 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 12:10:28,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:10:28,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:10:28,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:28,365 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:10:28,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 12:10:28,366 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:10:28,366 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 304 [2020-09-25 12:10:28,366 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:10:28,367 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:10:28,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:10:28,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:10:28,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-25 12:10:28,368 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:10:28,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 12:10:28,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:10:28,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:28,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:10:28,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:10:28,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:10:28,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 12:10:28,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:10:28,485 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:10:28,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:10:28,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:10:28,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:10:28,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:10:28,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 12:10:28,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:10:28,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:28,497 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:10:28,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:10:28,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:10:28,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 12:10:28,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:10:28,499 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:10:28,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:10:28,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:10:28,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:10:28,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 12:10:28,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 12:10:28,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:10:28,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:28,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:10:28,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:10:28,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:10:28,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 12:10:28,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:10:28,540 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:10:28,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:10:28,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:10:28,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 12:10:28,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:10:28,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 12:10:28,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:10:28,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:28,554 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:10:28,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:10:28,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:10:28,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 12:10:28,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:10:28,555 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:10:28,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:10:28,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:10:28,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:10:28,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:10:28,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 12:10:28,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:10:28,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:28,582 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:10:28,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 12:10:28,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:10:28,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 12:10:28,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:10:28,584 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:10:28,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:10:28,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:10:28,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 12:10:28,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:10:28,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 12:10:28,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:10:28,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:28,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:10:28,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 12:10:28,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:10:28,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 12:10:28,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:10:28,599 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:10:28,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:10:28,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:10:28,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 12:10:28,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:10:28,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:10:28,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:10:28,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:28,608 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:10:28,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:10:28,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:10:28,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:10:28,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:10:28,609 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:10:28,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:10:28,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:10:28,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:10:28,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:10:28,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-25 12:10:28,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:10:28,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:28,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:10:28,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:10:28,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:10:28,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 12:10:28,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:10:28,626 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:10:28,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:10:28,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 12:10:28,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:10:28,627 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:10:28,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-25 12:10:28,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:10:28,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:28,635 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:10:28,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:10:28,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:10:28,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 12:10:28,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:10:28,637 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:10:28,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:10:28,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 12:10:28,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:10:28,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:10:28,684 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 12:10:28,685 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1237196440] [2020-09-25 12:10:28,687 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:10:28,688 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 12:10:28,689 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849676323] [2020-09-25 12:10:28,698 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 12:10:28,698 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:10:28,717 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 12:10:28,718 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 12:10:28,720 INFO L87 Difference]: Start difference. First operand 325 states. Second operand 6 states. [2020-09-25 12:10:29,403 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 12:10:30,489 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 12:10:32,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:10:32,085 INFO L93 Difference]: Finished difference Result 798 states and 961 transitions. [2020-09-25 12:10:32,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 12:10:32,089 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 160 [2020-09-25 12:10:32,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:10:32,114 INFO L225 Difference]: With dead ends: 798 [2020-09-25 12:10:32,115 INFO L226 Difference]: Without dead ends: 585 [2020-09-25 12:10:32,122 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2020-09-25 12:10:32,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 585 states. [2020-09-25 12:10:32,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 585 to 515. [2020-09-25 12:10:32,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 515 states. [2020-09-25 12:10:32,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 515 states to 515 states and 586 transitions. [2020-09-25 12:10:32,299 INFO L78 Accepts]: Start accepts. Automaton has 515 states and 586 transitions. Word has length 160 [2020-09-25 12:10:32,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:10:32,300 INFO L479 AbstractCegarLoop]: Abstraction has 515 states and 586 transitions. [2020-09-25 12:10:32,300 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 12:10:32,300 INFO L276 IsEmpty]: Start isEmpty. Operand 515 states and 586 transitions. [2020-09-25 12:10:32,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2020-09-25 12:10:32,305 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:10:32,305 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-09-25 12:10:32,305 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 12:10:32,306 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:10:32,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:10:32,306 INFO L82 PathProgramCache]: Analyzing trace with hash 1584425820, now seen corresponding path program 1 times [2020-09-25 12:10:32,306 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:10:32,307 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [945916055] [2020-09-25 12:10:32,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:10:32,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:10:32,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:32,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:32,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:34,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:35,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:35,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:37,441 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:10:37,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 224 [2020-09-25 12:10:37,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 12:10:37,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5068 [2020-09-25 12:10:37,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:10:37,443 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:10:37,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 12:10:37,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-25 12:10:37,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 104 [2020-09-25 12:10:37,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 12:10:37,784 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 12:10:37,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:10:37,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:10:37,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:38,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:10:38,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 12:10:38,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:10:38,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 247 [2020-09-25 12:10:38,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:10:38,071 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:10:38,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:10:38,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:10:38,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-25 12:10:38,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:10:38,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 12:10:38,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:10:38,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:38,133 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:10:38,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:10:38,133 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:10:38,134 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:10:38,134 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:10:38,134 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:10:38,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:10:38,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:10:38,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:10:38,135 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:10:38,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 12:10:38,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:10:38,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:38,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:10:38,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:10:38,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:10:38,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:10:38,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:10:38,142 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:10:38,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:10:38,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:10:38,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:10:38,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:10:38,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 12:10:38,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:10:38,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:38,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:10:38,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:10:38,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:10:38,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 12:10:38,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:10:38,158 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:10:38,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:10:38,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:10:38,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 12:10:38,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:10:38,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 12:10:38,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:10:38,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:38,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:10:38,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:10:38,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:10:38,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:10:38,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:10:38,167 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:10:38,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:10:38,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:10:38,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:10:38,169 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:10:38,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 12:10:38,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:10:38,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:38,186 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:10:38,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 12:10:38,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:10:38,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 12:10:38,187 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:10:38,187 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:10:38,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:10:38,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:10:38,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 12:10:38,188 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:10:38,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 12:10:38,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:10:38,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:38,202 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:10:38,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 12:10:38,203 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:10:38,203 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 12:10:38,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:10:38,204 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:10:38,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:10:38,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:10:38,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 12:10:38,205 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:10:38,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:10:38,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:10:38,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:38,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:10:38,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:10:38,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:10:38,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:10:38,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:10:38,212 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:10:38,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:10:38,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:10:38,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:10:38,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:10:38,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 12:10:38,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:10:38,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:38,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:38,244 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:10:38,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 12:10:38,244 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 12:10:38,244 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 12:10:38,245 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:10:38,245 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:10:38,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 12:10:38,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 12:10:38,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 12:10:38,246 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:10:38,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:10:38,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:10:38,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:38,274 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:10:38,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 12:10:38,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:10:38,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 12:10:38,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:10:38,276 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:10:38,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 12:10:38,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 12:10:38,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 12:10:38,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:10:38,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:10:38,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:10:38,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:38,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:10:38,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:10:38,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:10:38,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 12:10:38,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:10:38,289 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:10:38,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:10:38,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:10:38,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:10:38,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:10:38,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-09-25 12:10:38,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:10:38,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:38,296 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:10:38,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:10:38,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:10:38,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:10:38,297 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:10:38,297 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:10:38,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:10:38,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 12:10:38,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:10:38,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:10:38,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2020-09-25 12:10:38,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:10:38,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:38,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:10:38,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:10:38,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:10:38,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:10:38,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:10:38,304 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:10:38,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:10:38,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 12:10:38,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:10:38,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:10:38,351 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 12:10:38,352 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [945916055] [2020-09-25 12:10:38,352 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:10:38,352 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 12:10:38,352 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938115252] [2020-09-25 12:10:38,358 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 12:10:38,358 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:10:38,358 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 12:10:38,359 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-25 12:10:38,359 INFO L87 Difference]: Start difference. First operand 515 states and 586 transitions. Second operand 7 states. [2020-09-25 12:10:38,829 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 12:10:40,665 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 12:10:41,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:10:41,674 INFO L93 Difference]: Finished difference Result 1351 states and 1683 transitions. [2020-09-25 12:10:41,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-25 12:10:41,681 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 183 [2020-09-25 12:10:41,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:10:41,694 INFO L225 Difference]: With dead ends: 1351 [2020-09-25 12:10:41,694 INFO L226 Difference]: Without dead ends: 951 [2020-09-25 12:10:41,702 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2020-09-25 12:10:41,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 951 states. [2020-09-25 12:10:41,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 951 to 787. [2020-09-25 12:10:41,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 787 states. [2020-09-25 12:10:41,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 787 states to 787 states and 911 transitions. [2020-09-25 12:10:41,860 INFO L78 Accepts]: Start accepts. Automaton has 787 states and 911 transitions. Word has length 183 [2020-09-25 12:10:41,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:10:41,861 INFO L479 AbstractCegarLoop]: Abstraction has 787 states and 911 transitions. [2020-09-25 12:10:41,861 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 12:10:41,862 INFO L276 IsEmpty]: Start isEmpty. Operand 787 states and 911 transitions. [2020-09-25 12:10:41,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2020-09-25 12:10:41,864 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:10:41,864 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-09-25 12:10:41,865 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 12:10:41,865 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:10:41,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:10:41,865 INFO L82 PathProgramCache]: Analyzing trace with hash -271509022, now seen corresponding path program 1 times [2020-09-25 12:10:41,866 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:10:41,866 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1766086210] [2020-09-25 12:10:41,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:10:41,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:10:41,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:42,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:42,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:45,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:46,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:10:46,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-09-25 12:10:46,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 12:10:46,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5049 [2020-09-25 12:10:46,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:10:46,976 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:10:46,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 12:10:46,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-25 12:10:46,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 134 [2020-09-25 12:10:46,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:10:47,401 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 12:10:47,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:10:47,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:10:47,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:47,686 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:10:47,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 12:10:47,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:10:47,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 248 [2020-09-25 12:10:47,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:10:47,688 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:10:47,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:10:47,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:10:47,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-25 12:10:47,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:10:47,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 12:10:47,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:10:47,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:47,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:10:47,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:10:47,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:10:47,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 12:10:47,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:10:47,756 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:10:47,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:10:47,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:10:47,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:10:47,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:10:47,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 12:10:47,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:10:47,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:47,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:10:47,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:10:47,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:10:47,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 12:10:47,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:10:47,766 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:10:47,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:10:47,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:10:47,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:10:47,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:10:47,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 12:10:47,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:10:47,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:47,778 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:10:47,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:10:47,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:10:47,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 12:10:47,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:10:47,780 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:10:47,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:10:47,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:10:47,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 12:10:47,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:10:47,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 12:10:47,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:10:47,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:47,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:10:47,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:10:47,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:10:47,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 12:10:47,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:10:47,795 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:10:47,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:10:47,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:10:47,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:10:47,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:10:47,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 12:10:47,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:10:47,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:47,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:10:47,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 12:10:47,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:10:47,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 12:10:47,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:10:47,813 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:10:47,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:10:47,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:10:47,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 12:10:47,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:10:47,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-09-25 12:10:47,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:10:47,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:47,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:47,843 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:10:47,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 12:10:47,844 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 12:10:47,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 12:10:47,844 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:10:47,845 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:10:47,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 12:10:47,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 12:10:47,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 12:10:47,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:10:47,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-25 12:10:47,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:10:47,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:47,887 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:10:47,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 12:10:47,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:10:47,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-25 12:10:47,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:10:47,889 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:10:47,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:10:47,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:10:47,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 12:10:47,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:10:47,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:10:47,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:10:47,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:47,896 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:10:47,896 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:10:47,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:10:47,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:10:47,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:10:47,897 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:10:47,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:10:47,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:10:47,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:10:47,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:10:47,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2020-09-25 12:10:47,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:10:47,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:47,908 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:10:47,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:10:47,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:10:47,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 12:10:47,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:10:47,909 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:10:47,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:10:47,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:10:47,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 12:10:47,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:10:47,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2020-09-25 12:10:47,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:10:47,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:47,923 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:10:47,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:10:47,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:10:47,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 12:10:47,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:10:47,924 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:10:47,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 12:10:47,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:10:47,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 12:10:47,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:10:48,002 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-25 12:10:48,004 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1766086210] [2020-09-25 12:10:48,004 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:10:48,005 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-25 12:10:48,005 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230600054] [2020-09-25 12:10:48,006 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 12:10:48,006 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:10:48,006 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 12:10:48,007 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2020-09-25 12:10:48,007 INFO L87 Difference]: Start difference. First operand 787 states and 911 transitions. Second operand 11 states. [2020-09-25 12:10:48,580 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 12:10:49,494 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 12:10:49,847 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 12:10:51,232 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 12:10:51,610 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 12:10:52,032 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 12:10:52,536 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 12:10:52,888 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 12:10:53,219 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 12:10:54,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:10:54,433 INFO L93 Difference]: Finished difference Result 1603 states and 1949 transitions. [2020-09-25 12:10:54,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-09-25 12:10:54,434 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 179 [2020-09-25 12:10:54,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:10:54,441 INFO L225 Difference]: With dead ends: 1603 [2020-09-25 12:10:54,441 INFO L226 Difference]: Without dead ends: 931 [2020-09-25 12:10:54,444 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 23 SyntacticMatches, 5 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=185, Invalid=465, Unknown=0, NotChecked=0, Total=650 [2020-09-25 12:10:54,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 931 states. [2020-09-25 12:10:54,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 931 to 784. [2020-09-25 12:10:54,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 784 states. [2020-09-25 12:10:54,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 784 states to 784 states and 902 transitions. [2020-09-25 12:10:54,534 INFO L78 Accepts]: Start accepts. Automaton has 784 states and 902 transitions. Word has length 179 [2020-09-25 12:10:54,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:10:54,534 INFO L479 AbstractCegarLoop]: Abstraction has 784 states and 902 transitions. [2020-09-25 12:10:54,534 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 12:10:54,535 INFO L276 IsEmpty]: Start isEmpty. Operand 784 states and 902 transitions. [2020-09-25 12:10:54,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2020-09-25 12:10:54,538 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:10:54,538 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-09-25 12:10:54,538 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 12:10:54,539 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:10:54,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:10:54,539 INFO L82 PathProgramCache]: Analyzing trace with hash -1165066921, now seen corresponding path program 1 times [2020-09-25 12:10:54,539 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:10:54,540 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1122478699] [2020-09-25 12:10:54,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:10:54,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:10:54,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:55,440 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:10:55,441 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 253 [2020-09-25 12:10:55,441 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:10:55,441 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 851 [2020-09-25 12:10:55,442 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:10:55,442 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:10:55,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 12:10:55,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 200 [2020-09-25 12:10:55,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 12:10:55,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:10:55,802 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 12:10:55,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:10:55,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:10:55,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:55,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:10:55,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 12:10:55,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:10:55,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-09-25 12:10:55,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:10:55,906 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:10:55,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:10:55,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:10:55,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:10:55,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:10:55,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 12:10:55,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:10:55,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:55,940 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:10:55,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:10:55,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:10:55,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:10:55,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:10:55,941 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:10:55,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:10:55,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:10:55,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:10:55,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:10:55,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 12:10:55,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:10:55,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:55,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:10:55,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:10:55,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:10:55,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:10:55,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:10:55,947 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:10:55,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:10:55,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:10:55,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:10:55,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:10:55,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 12:10:55,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:10:55,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:55,960 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:10:55,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:10:55,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:10:55,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 12:10:55,961 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:10:55,962 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:10:55,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:10:55,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:10:55,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:10:55,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:10:55,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 12:10:55,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:10:55,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:55,971 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:10:55,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:10:55,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:10:55,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:10:55,972 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:10:55,973 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:10:55,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:10:55,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:10:55,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:10:55,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:10:55,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 12:10:55,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:10:55,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:55,994 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:10:55,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 12:10:55,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:10:55,995 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:10:55,995 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:10:55,995 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:10:55,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:10:55,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:10:55,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:10:55,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:10:55,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 12:10:56,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:10:56,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:56,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:10:56,006 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 12:10:56,006 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:10:56,006 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 12:10:56,007 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:10:56,007 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:10:56,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:10:56,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:10:56,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:10:56,008 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:10:56,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:10:56,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:10:56,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:56,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:10:56,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:10:56,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:10:56,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 12:10:56,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:10:56,022 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:10:56,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:10:56,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:10:56,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:10:56,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:10:56,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 12:10:56,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:10:56,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:56,129 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:10:56,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 12:10:56,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:10:56,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-09-25 12:10:56,130 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:10:56,130 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:10:56,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 12:10:56,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-25 12:10:56,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 12:10:56,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:10:56,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:10:56,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:10:56,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:56,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:10:56,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 12:10:56,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:10:56,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-09-25 12:10:56,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:10:56,216 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:10:56,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 12:10:56,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-25 12:10:56,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 12:10:56,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:10:56,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:10:56,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:10:56,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:56,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:10:56,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 12:10:56,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:10:56,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-09-25 12:10:56,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:10:56,351 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:10:56,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 12:10:56,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:10:56,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 12:10:56,352 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 12:10:56,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 12:10:56,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:10:56,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:56,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:10:56,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 12:10:56,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:10:56,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 12:10:56,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:10:56,412 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:10:56,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:10:56,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:10:56,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:10:56,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 12:10:56,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 12:10:56,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:10:56,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:56,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:10:56,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 12:10:56,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:10:56,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 12:10:56,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:10:56,424 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:10:56,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:10:56,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-25 12:10:56,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:10:56,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 12:10:56,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2020-09-25 12:10:56,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:10:56,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:56,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:10:56,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:10:56,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:10:56,438 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:10:56,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:10:56,438 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:10:56,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:10:56,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 12:10:56,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:10:56,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:10:56,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2020-09-25 12:10:56,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:10:56,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:56,449 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:10:56,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:10:56,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:10:56,450 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:10:56,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:10:56,451 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:10:56,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:10:56,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 12:10:56,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:10:56,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:10:56,528 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 12:10:56,529 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1122478699] [2020-09-25 12:10:56,530 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:10:56,530 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 12:10:56,530 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991013701] [2020-09-25 12:10:56,531 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 12:10:56,531 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:10:56,532 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 12:10:56,532 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 12:10:56,532 INFO L87 Difference]: Start difference. First operand 784 states and 902 transitions. Second operand 10 states. [2020-09-25 12:10:58,030 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 12:10:58,352 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 12:10:58,685 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 12:10:59,052 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 12:10:59,383 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-25 12:10:59,669 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 12:11:00,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:11:00,638 INFO L93 Difference]: Finished difference Result 1601 states and 1923 transitions. [2020-09-25 12:11:00,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 12:11:00,639 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 208 [2020-09-25 12:11:00,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:11:00,645 INFO L225 Difference]: With dead ends: 1601 [2020-09-25 12:11:00,645 INFO L226 Difference]: Without dead ends: 932 [2020-09-25 12:11:00,648 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2020-09-25 12:11:00,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 932 states. [2020-09-25 12:11:00,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 932 to 800. [2020-09-25 12:11:00,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 800 states. [2020-09-25 12:11:00,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 800 states to 800 states and 918 transitions. [2020-09-25 12:11:00,769 INFO L78 Accepts]: Start accepts. Automaton has 800 states and 918 transitions. Word has length 208 [2020-09-25 12:11:00,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:11:00,771 INFO L479 AbstractCegarLoop]: Abstraction has 800 states and 918 transitions. [2020-09-25 12:11:00,771 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 12:11:00,771 INFO L276 IsEmpty]: Start isEmpty. Operand 800 states and 918 transitions. [2020-09-25 12:11:00,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2020-09-25 12:11:00,777 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:11:00,777 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-09-25 12:11:00,777 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 12:11:00,778 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:11:00,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:11:00,779 INFO L82 PathProgramCache]: Analyzing trace with hash -1290271305, now seen corresponding path program 1 times [2020-09-25 12:11:00,779 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:11:00,780 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1247104076] [2020-09-25 12:11:00,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:11:00,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:11:00,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:11:01,610 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:11:01,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 253 [2020-09-25 12:11:01,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:11:01,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 757 [2020-09-25 12:11:01,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:11:01,611 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:11:01,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 12:11:01,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 192 [2020-09-25 12:11:01,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 12:11:01,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:11:01,880 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 12:11:01,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:11:01,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:11:01,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:11:01,977 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:11:01,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 12:11:01,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:11:01,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-09-25 12:11:01,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:11:01,978 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:11:01,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:11:01,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:11:01,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:11:01,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:11:02,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 12:11:02,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:11:02,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:11:02,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:11:02,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:11:02,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:11:02,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 12:11:02,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:11:02,014 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:11:02,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:11:02,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:11:02,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:11:02,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:11:02,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 12:11:02,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:11:02,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:11:02,018 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:11:02,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:11:02,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:11:02,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 12:11:02,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:11:02,019 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:11:02,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:11:02,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:11:02,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:11:02,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:11:02,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 12:11:02,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:11:02,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:11:02,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:11:02,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:11:02,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:11:02,026 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:11:02,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:11:02,026 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:11:02,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:11:02,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:11:02,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:11:02,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:11:02,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 12:11:02,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:11:02,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:11:02,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:11:02,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:11:02,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:11:02,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 12:11:02,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:11:02,032 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:11:02,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:11:02,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:11:02,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:11:02,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:11:02,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 12:11:02,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:11:02,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:11:02,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:11:02,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 12:11:02,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:11:02,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 12:11:02,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:11:02,045 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:11:02,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:11:02,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:11:02,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:11:02,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:11:02,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 12:11:02,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:11:02,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:11:02,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:11:02,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 12:11:02,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:11:02,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:11:02,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:11:02,053 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:11:02,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:11:02,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:11:02,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:11:02,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:11:02,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:11:02,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:11:02,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:11:02,062 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:11:02,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:11:02,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:11:02,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:11:02,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:11:02,063 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:11:02,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:11:02,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:11:02,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:11:02,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:11:02,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 12:11:02,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:11:02,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:11:02,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:11:02,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 12:11:02,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:11:02,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-09-25 12:11:02,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:11:02,146 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:11:02,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 12:11:02,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-25 12:11:02,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 12:11:02,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:11:02,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:11:02,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:11:02,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:11:02,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:11:02,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 12:11:02,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:11:02,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-09-25 12:11:02,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:11:02,229 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:11:02,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 12:11:02,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 12:11:02,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 12:11:02,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 12:11:02,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:11:02,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:11:02,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:11:02,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:11:02,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 12:11:02,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:11:02,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-09-25 12:11:02,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:11:02,287 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:11:02,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 12:11:02,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 12:11:02,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 12:11:02,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 12:11:02,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 12:11:02,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:11:02,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:11:02,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:11:02,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 12:11:02,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:11:02,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 12:11:02,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:11:02,330 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:11:02,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 12:11:02,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:11:02,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 12:11:02,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 12:11:02,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 12:11:02,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:11:02,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:11:02,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:11:02,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 12:11:02,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:11:02,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 12:11:02,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:11:02,372 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:11:02,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:11:02,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-25 12:11:02,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:11:02,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 12:11:02,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2020-09-25 12:11:02,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:11:02,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:11:02,388 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:11:02,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:11:02,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:11:02,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:11:02,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:11:02,390 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:11:02,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:11:02,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 12:11:02,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:11:02,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 12:11:02,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2020-09-25 12:11:02,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:11:02,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:11:02,400 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:11:02,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:11:02,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:11:02,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 12:11:02,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:11:02,403 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:11:02,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:11:02,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 12:11:02,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:11:02,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 12:11:02,524 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 12:11:02,525 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1247104076] [2020-09-25 12:11:02,525 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:11:02,525 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 12:11:02,526 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286427472] [2020-09-25 12:11:02,527 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 12:11:02,527 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:11:02,527 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 12:11:02,528 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-25 12:11:02,528 INFO L87 Difference]: Start difference. First operand 800 states and 918 transitions. Second operand 9 states. [2020-09-25 12:11:03,906 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 12:11:04,225 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 12:11:04,554 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 12:11:04,889 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 12:11:05,197 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 12:11:06,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:11:06,397 INFO L93 Difference]: Finished difference Result 1639 states and 1990 transitions. [2020-09-25 12:11:06,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 12:11:06,398 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 208 [2020-09-25 12:11:06,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:11:06,404 INFO L225 Difference]: With dead ends: 1639 [2020-09-25 12:11:06,404 INFO L226 Difference]: Without dead ends: 954 [2020-09-25 12:11:06,407 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2020-09-25 12:11:06,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 954 states. [2020-09-25 12:11:06,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 954 to 812. [2020-09-25 12:11:06,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 812 states. [2020-09-25 12:11:06,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 812 states to 812 states and 930 transitions. [2020-09-25 12:11:06,503 INFO L78 Accepts]: Start accepts. Automaton has 812 states and 930 transitions. Word has length 208 [2020-09-25 12:11:06,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:11:06,503 INFO L479 AbstractCegarLoop]: Abstraction has 812 states and 930 transitions. [2020-09-25 12:11:06,504 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 12:11:06,504 INFO L276 IsEmpty]: Start isEmpty. Operand 812 states and 930 transitions. [2020-09-25 12:11:06,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2020-09-25 12:11:06,508 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:11:06,508 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-09-25 12:11:06,508 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 12:11:06,508 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:11:06,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:11:06,509 INFO L82 PathProgramCache]: Analyzing trace with hash -599777164, now seen corresponding path program 1 times [2020-09-25 12:11:06,509 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:11:06,510 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [219374420] [2020-09-25 12:11:06,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:11:06,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:11:06,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:11:07,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:11:07,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 253 [2020-09-25 12:11:07,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:11:07,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1362 [2020-09-25 12:11:07,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:11:07,937 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:11:07,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 12:11:07,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-09-25 12:11:07,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-09-25 12:11:07,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0