/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.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 SequenceOfStatements --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=DEEPEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product35.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 22:15:47,983 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 22:15:47,986 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 22:15:48,037 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 22:15:48,038 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 22:15:48,039 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 22:15:48,041 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 22:15:48,044 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 22:15:48,062 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 22:15:48,064 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 22:15:48,066 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 22:15:48,069 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 22:15:48,069 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 22:15:48,076 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 22:15:48,080 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 22:15:48,082 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 22:15:48,083 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 22:15:48,086 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 22:15:48,093 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 22:15:48,099 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 22:15:48,102 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 22:15:48,104 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 22:15:48,106 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 22:15:48,108 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 22:15:48,118 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 22:15:48,119 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 22:15:48,119 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 22:15:48,122 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 22:15:48,122 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 22:15:48,135 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 22:15:48,136 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 22:15:48,137 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 22:15:48,139 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 22:15:48,140 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 22:15:48,141 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 22:15:48,141 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 22:15:48,142 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 22:15:48,142 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 22:15:48,142 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 22:15:48,143 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 22:15:48,144 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 22:15:48,145 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 [2020-10-27 22:15:48,201 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 22:15:48,202 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 22:15:48,206 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 22:15:48,207 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 22:15:48,207 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 22:15:48,207 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 22:15:48,208 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 22:15:48,208 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 22:15:48,208 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 22:15:48,208 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 22:15:48,209 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 22:15:48,209 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 22:15:48,210 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 22:15:48,210 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 22:15:48,210 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 22:15:48,210 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 22:15:48,210 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 22:15:48,211 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 22:15:48,211 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 22:15:48,211 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 22:15:48,211 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 22:15:48,212 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 22:15:48,212 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 22:15:48,212 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 22:15:48,212 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 22:15:48,213 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 22:15:48,213 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 22:15:48,213 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 22:15:48,213 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 22:15:48,213 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 22:15:48,638 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 22:15:48,676 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 22:15:48,679 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 22:15:48,681 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 22:15:48,681 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 22:15:48,682 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product35.cil.c [2020-10-27 22:15:48,776 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8e4401ae6/fa6a2c16bb614b95b88e18411162c4d6/FLAG2944609c3 [2020-10-27 22:15:49,524 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 22:15:49,525 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product35.cil.c [2020-10-27 22:15:49,548 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8e4401ae6/fa6a2c16bb614b95b88e18411162c4d6/FLAG2944609c3 [2020-10-27 22:15:49,772 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8e4401ae6/fa6a2c16bb614b95b88e18411162c4d6 [2020-10-27 22:15:49,776 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 22:15:49,787 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 22:15:49,791 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 22:15:49,792 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 22:15:49,796 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 22:15:49,797 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 10:15:49" (1/1) ... [2020-10-27 22:15:49,803 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2dbcf313 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:15:49, skipping insertion in model container [2020-10-27 22:15:49,803 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 10:15:49" (1/1) ... [2020-10-27 22:15:49,812 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 22:15:49,890 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 22:15:50,294 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 22:15:50,307 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 22:15:50,389 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 22:15:50,443 INFO L208 MainTranslator]: Completed translation [2020-10-27 22:15:50,444 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:15:50 WrapperNode [2020-10-27 22:15:50,444 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 22:15:50,446 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 22:15:50,446 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 22:15:50,446 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 22:15:50,465 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:15:50" (1/1) ... [2020-10-27 22:15:50,466 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:15:50" (1/1) ... [2020-10-27 22:15:50,485 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:15:50" (1/1) ... [2020-10-27 22:15:50,486 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:15:50" (1/1) ... [2020-10-27 22:15:50,552 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:15:50" (1/1) ... [2020-10-27 22:15:50,578 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:15:50" (1/1) ... [2020-10-27 22:15:50,591 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:15:50" (1/1) ... [2020-10-27 22:15:50,605 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 22:15:50,606 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 22:15:50,606 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 22:15:50,606 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 22:15:50,607 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:15:50" (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 [2020-10-27 22:15:50,693 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 22:15:50,693 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 22:15:50,693 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-27 22:15:50,693 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 22:15:50,694 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-27 22:15:50,694 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-10-27 22:15:50,694 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-27 22:15:50,694 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-10-27 22:15:50,694 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-27 22:15:50,695 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-27 22:15:50,695 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-27 22:15:50,695 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-27 22:15:50,695 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-27 22:15:50,695 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-27 22:15:50,695 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-10-27 22:15:50,696 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-10-27 22:15:50,696 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-27 22:15:50,696 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-27 22:15:50,696 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-27 22:15:50,696 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-27 22:15:50,696 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 22:15:50,697 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-27 22:15:50,697 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-27 22:15:50,697 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-27 22:15:50,697 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-27 22:15:50,697 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-27 22:15:50,697 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-27 22:15:50,698 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-27 22:15:50,698 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-27 22:15:50,698 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-27 22:15:50,698 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-27 22:15:50,698 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-27 22:15:50,698 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-27 22:15:50,699 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-27 22:15:50,699 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-27 22:15:50,699 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-27 22:15:50,699 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-27 22:15:50,699 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-27 22:15:50,699 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-10-27 22:15:50,699 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 22:15:50,700 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 22:15:50,700 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 22:15:50,700 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 22:15:50,700 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-27 22:15:50,700 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-27 22:15:50,700 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-27 22:15:50,701 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-27 22:15:50,701 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-10-27 22:15:50,701 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-27 22:15:50,701 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-27 22:15:50,732 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-27 22:15:50,732 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-27 22:15:50,733 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-27 22:15:50,733 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-27 22:15:50,733 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-10-27 22:15:50,733 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-27 22:15:50,733 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-27 22:15:50,733 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-27 22:15:50,734 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-10-27 22:15:50,734 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-27 22:15:50,734 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-27 22:15:50,734 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-27 22:15:50,734 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-27 22:15:50,734 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-10-27 22:15:50,735 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-10-27 22:15:50,738 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-27 22:15:50,738 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-27 22:15:50,739 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-27 22:15:50,739 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-27 22:15:50,739 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-27 22:15:50,739 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-27 22:15:50,739 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-27 22:15:50,739 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 22:15:50,740 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-27 22:15:50,740 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-27 22:15:50,740 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-27 22:15:50,740 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-27 22:15:50,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-27 22:15:50,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 22:15:50,741 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-27 22:15:50,741 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-27 22:15:50,741 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 22:15:50,741 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-27 22:15:50,741 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-27 22:15:50,741 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 22:15:50,741 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-27 22:15:50,742 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-27 22:15:50,742 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-27 22:15:50,742 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-27 22:15:50,742 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 22:15:50,742 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 22:15:50,742 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 22:15:52,179 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 22:15:52,179 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-27 22:15:52,182 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 10:15:52 BoogieIcfgContainer [2020-10-27 22:15:52,182 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 22:15:52,184 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 22:15:52,184 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 22:15:52,188 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 22:15:52,189 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 10:15:49" (1/3) ... [2020-10-27 22:15:52,190 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30bdb205 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 10:15:52, skipping insertion in model container [2020-10-27 22:15:52,190 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:15:50" (2/3) ... [2020-10-27 22:15:52,190 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30bdb205 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 10:15:52, skipping insertion in model container [2020-10-27 22:15:52,191 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 10:15:52" (3/3) ... [2020-10-27 22:15:52,192 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product35.cil.c [2020-10-27 22:15:52,206 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 22:15:52,215 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-27 22:15:52,230 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-27 22:15:52,262 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 22:15:52,262 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 22:15:52,262 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 22:15:52,262 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 22:15:52,262 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 22:15:52,263 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 22:15:52,263 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 22:15:52,263 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 22:15:52,287 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states. [2020-10-27 22:15:52,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-10-27 22:15:52,296 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:15:52,297 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 22:15:52,298 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:15:52,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:15:52,304 INFO L82 PathProgramCache]: Analyzing trace with hash -1296621101, now seen corresponding path program 1 times [2020-10-27 22:15:52,314 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:15:52,315 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [263952990] [2020-10-27 22:15:52,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:15:52,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:15:52,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:15:52,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:15:53,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:15:55,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:15:55,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:15:57,703 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:15:57,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-10-27 22:15:57,704 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 22:15:57,704 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5028 [2020-10-27 22:15:57,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:15:57,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 22:15:57,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 50 [2020-10-27 22:15:57,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-27 22:15:57,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-27 22:15:58,239 WARN L193 SmtUtils]: Spent 387.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 22:15:58,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:15:58,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:15:58,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:15:58,385 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:15:58,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:15:58,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:15:58,386 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-10-27 22:15:58,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:15:58,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:15:58,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:15:58,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:15:58,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-27 22:15:58,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:15:58,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:15:58,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:15:58,437 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:15:58,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 22:15:58,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:15:58,438 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 22:15:58,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:15:58,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:15:58,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:15:58,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:15:58,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:15:58,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 22:15:58,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:15:58,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:15:58,453 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:15:58,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 22:15:58,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:15:58,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:15:58,454 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:15:58,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:15:58,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:15:58,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:15:58,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 22:15:58,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 22:15:58,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:15:58,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:15:58,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:15:58,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:15:58,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:15:58,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 22:15:58,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:15:58,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:15:58,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:15:58,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:15:58,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 22:15:58,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 22:15:58,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:15:58,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:15:58,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:15:58,481 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 22:15:58,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:15:58,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:15:58,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:15:58,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:15:58,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:15:58,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:15:58,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 22:15:58,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-27 22:15:58,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:15:58,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:15:58,501 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:15:58,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:15:58,502 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:15:58,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 22:15:58,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:15:58,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:15:58,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:15:58,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 22:15:58,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 22:15:58,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-27 22:15:58,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:15:58,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:15:58,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:15:58,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:15:58,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:15:58,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-27 22:15:58,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:15:58,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:15:58,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:15:58,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 22:15:58,535 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 22:15:58,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 22:15:58,590 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [263952990] [2020-10-27 22:15:58,595 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 22:15:58,595 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-27 22:15:58,596 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781806992] [2020-10-27 22:15:58,604 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-27 22:15:58,604 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:15:58,626 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-27 22:15:58,628 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-27 22:15:58,631 INFO L87 Difference]: Start difference. First operand 161 states. Second operand 7 states. [2020-10-27 22:15:59,334 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-27 22:16:00,593 WARN L193 SmtUtils]: Spent 413.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-27 22:16:01,111 WARN L193 SmtUtils]: Spent 404.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-27 22:16:01,511 WARN L193 SmtUtils]: Spent 369.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-27 22:16:02,396 WARN L193 SmtUtils]: Spent 393.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-27 22:16:02,867 WARN L193 SmtUtils]: Spent 369.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-27 22:16:04,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:16:04,231 INFO L93 Difference]: Finished difference Result 358 states and 498 transitions. [2020-10-27 22:16:04,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-27 22:16:04,235 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 47 [2020-10-27 22:16:04,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:16:04,251 INFO L225 Difference]: With dead ends: 358 [2020-10-27 22:16:04,251 INFO L226 Difference]: Without dead ends: 218 [2020-10-27 22:16:04,257 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2020-10-27 22:16:04,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2020-10-27 22:16:04,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 183. [2020-10-27 22:16:04,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 183 states. [2020-10-27 22:16:04,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 231 transitions. [2020-10-27 22:16:04,423 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 231 transitions. Word has length 47 [2020-10-27 22:16:04,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:16:04,423 INFO L481 AbstractCegarLoop]: Abstraction has 183 states and 231 transitions. [2020-10-27 22:16:04,424 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-27 22:16:04,424 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 231 transitions. [2020-10-27 22:16:04,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-10-27 22:16:04,429 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:16:04,429 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 22:16:04,429 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 22:16:04,430 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:16:04,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:16:04,431 INFO L82 PathProgramCache]: Analyzing trace with hash 23212490, now seen corresponding path program 1 times [2020-10-27 22:16:04,431 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:16:04,431 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1749866737] [2020-10-27 22:16:04,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:16:04,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:16:04,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:16:04,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:16:04,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:16:09,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:16:09,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-27 22:16:09,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 22:16:09,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-27 22:16:09,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:16:09,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 22:16:09,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-10-27 22:16:09,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 22:16:09,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:16:09,843 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 22:16:09,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:16:09,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:16:09,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:16:09,886 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:16:09,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:16:09,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:16:09,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-27 22:16:09,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:16:09,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:16:09,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:16:09,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:16:09,888 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:16:09,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:16:09,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:16:09,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:16:09,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:16:09,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 22:16:09,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:16:09,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:16:09,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:16:09,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:16:09,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:16:09,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:16:09,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:16:09,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 22:16:09,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:16:09,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:16:09,909 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:16:09,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 22:16:09,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:16:09,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:16:09,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:16:09,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:16:09,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:16:09,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:16:09,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:16:09,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 22:16:09,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:16:09,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:16:09,914 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:16:09,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:16:09,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:16:09,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:16:09,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:16:09,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:16:09,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:16:09,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:16:09,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:16:09,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 22:16:09,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:16:09,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:16:09,918 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:16:09,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 22:16:09,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:16:09,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 22:16:09,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:16:09,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:16:09,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:16:09,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:16:09,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:16:09,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-27 22:16:09,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:16:09,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:16:09,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:16:09,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-27 22:16:09,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:16:09,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-27 22:16:09,955 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:16:09,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 22:16:09,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-27 22:16:09,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 22:16:09,956 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:16:10,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:16:10,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:16:10,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:16:10,021 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:16:10,022 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-27 22:16:10,022 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:16:10,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 22:16:10,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:16:10,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:16:10,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:16:10,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-27 22:16:10,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:16:10,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 22:16:10,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:16:10,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:16:10,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:16:10,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:16:10,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:16:10,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:16:10,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:16:10,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:16:10,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:16:10,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:16:10,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:16:10,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-27 22:16:10,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:16:10,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:16:10,066 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:16:10,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:16:10,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:16:10,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:16:10,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:16:10,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:16:10,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 22:16:10,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:16:10,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:16:10,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-27 22:16:10,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:16:10,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:16:10,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:16:10,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:16:10,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:16:10,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:16:10,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:16:10,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:16:10,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 22:16:10,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:16:10,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:16:10,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-27 22:16:10,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:16:10,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:16:10,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:16:10,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:16:10,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:16:10,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:16:10,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:16:10,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:16:10,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 22:16:10,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:16:10,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:16:10,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 22:16:10,093 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1749866737] [2020-10-27 22:16:10,093 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 22:16:10,093 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-27 22:16:10,093 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567922091] [2020-10-27 22:16:10,095 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-27 22:16:10,095 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:16:10,096 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-27 22:16:10,096 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-27 22:16:10,096 INFO L87 Difference]: Start difference. First operand 183 states and 231 transitions. Second operand 8 states. [2020-10-27 22:16:11,554 WARN L193 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-27 22:16:12,024 WARN L193 SmtUtils]: Spent 389.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-27 22:16:12,464 WARN L193 SmtUtils]: Spent 358.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-27 22:16:12,916 WARN L193 SmtUtils]: Spent 384.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-27 22:16:13,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:16:13,875 INFO L93 Difference]: Finished difference Result 408 states and 559 transitions. [2020-10-27 22:16:13,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-27 22:16:13,876 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 71 [2020-10-27 22:16:13,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:16:13,882 INFO L225 Difference]: With dead ends: 408 [2020-10-27 22:16:13,882 INFO L226 Difference]: Without dead ends: 249 [2020-10-27 22:16:13,885 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2020-10-27 22:16:13,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2020-10-27 22:16:13,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 191. [2020-10-27 22:16:13,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 191 states. [2020-10-27 22:16:13,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 239 transitions. [2020-10-27 22:16:13,962 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 239 transitions. Word has length 71 [2020-10-27 22:16:13,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:16:13,963 INFO L481 AbstractCegarLoop]: Abstraction has 191 states and 239 transitions. [2020-10-27 22:16:13,963 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-27 22:16:13,963 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 239 transitions. [2020-10-27 22:16:13,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-10-27 22:16:13,966 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:16:13,966 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 22:16:13,966 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 22:16:13,967 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:16:13,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:16:13,967 INFO L82 PathProgramCache]: Analyzing trace with hash 1409415884, now seen corresponding path program 1 times [2020-10-27 22:16:13,968 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:16:13,968 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [979874081] [2020-10-27 22:16:13,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:16:13,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:16:14,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:16:14,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:16:14,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:16:19,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:16:19,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-27 22:16:19,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 22:16:19,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-27 22:16:19,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:16:19,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:16:19,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 66 [2020-10-27 22:16:19,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 22:16:19,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 22:16:19,370 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 22:16:19,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:16:19,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:16:19,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:16:19,414 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:16:19,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:16:19,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:16:19,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-27 22:16:19,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:16:19,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:16:19,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:16:19,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:16:19,415 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:16:19,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:16:19,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:16:19,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:16:19,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:16:19,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 22:16:19,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:16:19,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:16:19,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:16:19,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:16:19,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:16:19,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:16:19,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:16:19,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 22:16:19,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:16:19,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:16:19,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:16:19,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 22:16:19,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:16:19,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 22:16:19,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:16:19,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:16:19,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:16:19,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:16:19,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:16:19,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 22:16:19,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:16:19,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:16:19,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:16:19,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:16:19,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:16:19,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:16:19,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:16:19,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:16:19,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:16:19,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:16:19,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-27 22:16:19,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 22:16:19,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:16:19,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:16:19,449 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:16:19,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 22:16:19,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:16:19,450 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 22:16:19,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:16:19,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:16:19,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:16:19,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:16:19,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 22:16:19,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-27 22:16:19,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:16:19,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:16:19,489 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:16:19,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-27 22:16:19,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:16:19,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-27 22:16:19,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:16:19,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:16:19,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-27 22:16:19,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 22:16:19,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:16:19,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:16:19,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:16:19,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:16:19,514 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:16:19,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-27 22:16:19,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:16:19,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-27 22:16:19,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:16:19,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:16:19,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 22:16:19,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 22:16:19,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:16:19,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 22:16:19,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:16:19,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:16:19,554 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:16:19,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:16:19,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:16:19,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 22:16:19,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:16:19,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 22:16:19,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:16:19,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 22:16:19,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:16:19,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-27 22:16:19,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:16:19,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:16:19,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:16:19,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:16:19,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:16:19,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 22:16:19,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:16:19,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:16:19,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 22:16:19,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:16:19,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 22:16:19,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-27 22:16:19,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:16:19,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:16:19,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:16:19,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:16:19,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:16:19,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:16:19,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:16:19,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:16:19,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 22:16:19,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:16:19,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-27 22:16:19,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-27 22:16:19,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:16:19,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:16:19,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:16:19,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:16:19,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:16:19,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:16:19,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:16:19,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:16:19,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 22:16:19,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:16:19,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:16:19,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 22:16:19,617 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [979874081] [2020-10-27 22:16:19,617 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 22:16:19,617 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-27 22:16:19,617 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425394880] [2020-10-27 22:16:19,618 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-27 22:16:19,618 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:16:19,619 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-27 22:16:19,619 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-27 22:16:19,619 INFO L87 Difference]: Start difference. First operand 191 states and 239 transitions. Second operand 7 states. [2020-10-27 22:16:21,166 WARN L193 SmtUtils]: Spent 422.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-27 22:16:21,650 WARN L193 SmtUtils]: Spent 400.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-27 22:16:22,087 WARN L193 SmtUtils]: Spent 370.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-27 22:16:23,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:16:23,146 INFO L93 Difference]: Finished difference Result 423 states and 595 transitions. [2020-10-27 22:16:23,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-27 22:16:23,147 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 71 [2020-10-27 22:16:23,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:16:23,152 INFO L225 Difference]: With dead ends: 423 [2020-10-27 22:16:23,152 INFO L226 Difference]: Without dead ends: 256 [2020-10-27 22:16:23,154 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2020-10-27 22:16:23,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2020-10-27 22:16:23,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 195. [2020-10-27 22:16:23,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 195 states. [2020-10-27 22:16:23,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 243 transitions. [2020-10-27 22:16:23,231 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 243 transitions. Word has length 71 [2020-10-27 22:16:23,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:16:23,232 INFO L481 AbstractCegarLoop]: Abstraction has 195 states and 243 transitions. [2020-10-27 22:16:23,232 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-27 22:16:23,232 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 243 transitions. [2020-10-27 22:16:23,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-10-27 22:16:23,235 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:16:23,235 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 22:16:23,235 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-27 22:16:23,236 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:16:23,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:16:23,236 INFO L82 PathProgramCache]: Analyzing trace with hash -774261043, now seen corresponding path program 1 times [2020-10-27 22:16:23,236 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:16:23,237 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [613417987] [2020-10-27 22:16:23,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:16:23,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:16:23,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:16:23,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:16:23,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:16:24,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:16:28,289 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:16:28,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-27 22:16:28,290 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 22:16:28,290 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5021 [2020-10-27 22:16:28,290 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:16:28,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 22:16:28,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 66 [2020-10-27 22:16:28,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-27 22:16:28,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 22:16:28,683 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 22:16:28,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:16:28,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:16:28,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:16:28,722 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:16:28,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:16:28,723 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:16:28,723 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-27 22:16:28,723 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:16:28,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:16:28,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:16:28,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:16:28,723 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:16:28,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:16:28,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:16:28,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:16:28,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:16:28,740 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 22:16:28,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:16:28,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 22:16:28,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:16:28,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:16:28,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:16:28,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:16:28,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:16:28,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 22:16:28,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:16:28,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:16:28,743 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:16:28,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 22:16:28,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:16:28,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 22:16:28,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:16:28,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:16:28,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:16:28,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:16:28,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:16:28,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 22:16:28,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:16:28,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:16:28,748 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:16:28,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:16:28,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:16:28,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:16:28,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:16:28,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:16:28,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:16:28,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:16:28,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:16:28,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 22:16:28,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:16:28,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:16:28,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:16:28,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 22:16:28,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:16:28,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 22:16:28,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:16:28,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:16:28,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:16:28,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:16:28,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:16:28,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-27 22:16:28,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:16:28,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:16:28,786 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:16:28,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-27 22:16:28,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:16:28,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 22:16:28,787 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:16:28,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:16:28,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:16:28,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-27 22:16:28,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:16:28,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:16:28,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:16:28,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:16:28,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:16:28,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-27 22:16:28,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:16:28,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 22:16:28,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:16:28,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:16:28,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:16:28,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 22:16:28,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:16:28,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 22:16:28,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:16:28,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:16:28,811 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:16:28,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:16:28,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:16:28,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:16:28,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:16:28,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:16:28,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:16:28,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-27 22:16:28,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:16:28,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-27 22:16:28,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:16:28,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:16:28,820 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:16:28,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:16:28,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:16:28,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:16:28,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:16:28,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:16:28,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:16:28,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 22:16:28,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:16:28,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-27 22:16:28,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:16:28,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:16:28,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:16:28,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:16:28,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:16:28,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 22:16:28,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:16:28,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:16:28,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:16:28,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 22:16:28,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:16:28,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-27 22:16:28,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:16:28,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:16:28,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:16:28,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:16:28,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:16:28,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:16:28,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:16:28,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:16:28,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 22:16:28,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:16:28,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:16:28,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 22:16:28,862 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [613417987] [2020-10-27 22:16:28,862 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 22:16:28,863 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-27 22:16:28,863 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930284410] [2020-10-27 22:16:28,863 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-27 22:16:28,864 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:16:28,864 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-27 22:16:28,864 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-27 22:16:28,865 INFO L87 Difference]: Start difference. First operand 195 states and 243 transitions. Second operand 8 states. [2020-10-27 22:16:29,761 WARN L193 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-27 22:16:30,399 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-27 22:16:31,240 WARN L193 SmtUtils]: Spent 354.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-27 22:16:31,772 WARN L193 SmtUtils]: Spent 382.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-27 22:16:32,196 WARN L193 SmtUtils]: Spent 368.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-27 22:16:34,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:16:34,083 INFO L93 Difference]: Finished difference Result 573 states and 866 transitions. [2020-10-27 22:16:34,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-27 22:16:34,084 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 71 [2020-10-27 22:16:34,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:16:34,090 INFO L225 Difference]: With dead ends: 573 [2020-10-27 22:16:34,090 INFO L226 Difference]: Without dead ends: 402 [2020-10-27 22:16:34,092 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 23 SyntacticMatches, 3 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2020-10-27 22:16:34,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402 states. [2020-10-27 22:16:34,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 313. [2020-10-27 22:16:34,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 313 states. [2020-10-27 22:16:34,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 418 transitions. [2020-10-27 22:16:34,191 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 418 transitions. Word has length 71 [2020-10-27 22:16:34,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:16:34,191 INFO L481 AbstractCegarLoop]: Abstraction has 313 states and 418 transitions. [2020-10-27 22:16:34,191 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-27 22:16:34,192 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 418 transitions. [2020-10-27 22:16:34,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2020-10-27 22:16:34,195 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:16:34,196 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 22:16:34,196 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-27 22:16:34,196 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:16:34,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:16:34,197 INFO L82 PathProgramCache]: Analyzing trace with hash 1775591672, now seen corresponding path program 1 times [2020-10-27 22:16:34,197 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:16:34,197 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [82171470] [2020-10-27 22:16:34,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:16:34,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:16:34,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:16:34,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:16:34,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:16:34,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:16:34,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:16:34,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:16:36,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:16:36,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:16:39,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:16:39,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 152 [2020-10-27 22:16:39,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-27 22:16:39,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-27 22:16:39,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:16:39,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-27 22:16:39,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 74 [2020-10-27 22:16:39,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-27 22:16:39,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:16:39,692 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 22:16:39,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:16:39,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:16:39,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:16:39,736 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:16:39,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:16:39,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:16:39,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-27 22:16:39,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:16:39,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:16:39,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:16:39,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:16:39,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:16:39,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:16:39,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:16:39,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:16:39,753 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:16:39,753 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 22:16:39,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:16:39,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:16:39,754 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:16:39,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:16:39,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:16:39,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:16:39,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:16:39,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 22:16:39,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:16:39,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:16:39,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:16:39,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 22:16:39,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:16:39,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 22:16:39,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:16:39,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:16:39,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:16:39,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:16:39,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:16:39,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 22:16:39,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:16:39,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:16:39,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:16:39,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:16:39,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:16:39,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:16:39,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:16:39,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:16:39,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:16:39,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:16:39,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:16:39,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 22:16:39,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:16:39,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:16:39,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:16:39,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 22:16:39,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:16:39,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 22:16:39,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:16:39,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:16:39,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:16:39,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:16:39,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:16:39,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-27 22:16:39,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:16:39,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:16:39,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:16:39,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:16:39,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:16:39,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:16:39,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:16:39,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:16:39,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:16:39,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:16:39,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:16:39,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-27 22:16:39,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:16:39,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:16:39,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:16:39,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-10-27 22:16:39,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:16:39,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 22:16:39,838 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:16:39,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:16:39,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:16:39,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-27 22:16:39,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:16:39,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:16:39,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:16:39,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:16:39,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:16:39,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-27 22:16:39,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:16:39,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 22:16:39,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:16:39,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:16:39,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:16:39,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-27 22:16:39,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:16:39,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:16:39,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:16:39,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:16:39,886 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:16:39,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-27 22:16:39,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:16:39,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 22:16:39,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:16:39,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:16:39,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:16:39,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 22:16:39,888 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:16:39,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 22:16:39,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:16:39,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:16:39,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:16:39,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:16:39,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:16:39,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:16:39,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:16:39,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:16:39,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:16:39,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-27 22:16:39,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:16:39,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-27 22:16:39,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:16:39,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:16:39,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:16:39,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:16:39,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:16:39,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:16:39,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:16:39,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:16:39,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:16:39,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 22:16:39,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:16:39,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-27 22:16:39,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:16:39,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:16:39,927 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:16:39,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-27 22:16:39,927 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:16:39,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 22:16:39,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:16:39,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:16:39,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:16:39,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-27 22:16:39,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:16:39,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 22:16:39,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:16:39,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:16:39,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:16:39,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:16:39,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:16:39,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:16:39,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:16:39,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:16:39,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:16:39,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:16:39,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:16:39,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-27 22:16:39,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:16:39,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:16:39,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:16:39,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:16:39,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:16:39,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 22:16:39,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:16:39,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 22:16:39,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 22:16:39,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 22:16:39,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:16:39,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-27 22:16:39,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:16:39,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:16:39,971 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:16:39,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:16:39,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:16:39,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 22:16:39,972 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:16:39,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:16:39,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:16:39,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 22:16:39,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:16:39,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-10-27 22:16:39,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:16:39,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:16:39,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:16:39,991 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:16:39,991 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:16:39,991 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:16:39,991 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:16:39,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:16:39,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 22:16:39,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:16:39,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:16:40,009 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 9 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-27 22:16:40,010 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [82171470] [2020-10-27 22:16:40,010 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 22:16:40,010 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-27 22:16:40,010 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728821628] [2020-10-27 22:16:40,011 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-27 22:16:40,011 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:16:40,012 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-27 22:16:40,012 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2020-10-27 22:16:40,013 INFO L87 Difference]: Start difference. First operand 313 states and 418 transitions. Second operand 12 states. [2020-10-27 22:16:40,775 WARN L193 SmtUtils]: Spent 381.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-27 22:16:41,426 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-27 22:16:42,115 WARN L193 SmtUtils]: Spent 364.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-27 22:16:42,617 WARN L193 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-27 22:16:43,067 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-27 22:16:43,694 WARN L193 SmtUtils]: Spent 366.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-27 22:16:44,211 WARN L193 SmtUtils]: Spent 371.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-27 22:16:44,641 WARN L193 SmtUtils]: Spent 373.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-27 22:16:45,889 WARN L193 SmtUtils]: Spent 368.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-27 22:16:48,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:16:48,594 INFO L93 Difference]: Finished difference Result 1074 states and 1682 transitions. [2020-10-27 22:16:48,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-10-27 22:16:48,595 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 102 [2020-10-27 22:16:48,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:16:48,605 INFO L225 Difference]: With dead ends: 1074 [2020-10-27 22:16:48,605 INFO L226 Difference]: Without dead ends: 785 [2020-10-27 22:16:48,608 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 40 SyntacticMatches, 4 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 224 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=270, Invalid=660, Unknown=0, NotChecked=0, Total=930 [2020-10-27 22:16:48,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 785 states. [2020-10-27 22:16:48,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 785 to 511. [2020-10-27 22:16:48,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 511 states. [2020-10-27 22:16:48,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 511 states to 511 states and 710 transitions. [2020-10-27 22:16:48,773 INFO L78 Accepts]: Start accepts. Automaton has 511 states and 710 transitions. Word has length 102 [2020-10-27 22:16:48,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:16:48,773 INFO L481 AbstractCegarLoop]: Abstraction has 511 states and 710 transitions. [2020-10-27 22:16:48,774 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-27 22:16:48,774 INFO L276 IsEmpty]: Start isEmpty. Operand 511 states and 710 transitions. [2020-10-27 22:16:48,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2020-10-27 22:16:48,781 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:16:48,782 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-27 22:16:48,782 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-27 22:16:48,782 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:16:48,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:16:48,783 INFO L82 PathProgramCache]: Analyzing trace with hash 683938293, now seen corresponding path program 1 times [2020-10-27 22:16:48,783 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:16:48,784 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [665631841] [2020-10-27 22:16:48,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:16:48,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:16:48,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:16:48,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:16:49,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:16:49,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:16:49,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:16:49,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:16:50,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:16:50,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:16:50,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:16:51,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:16:53,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:16:53,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-10-27 22:16:53,833 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-27 22:16:53,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-10-27 22:16:53,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:16:53,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:16:53,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 103 [2020-10-27 22:16:53,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-27 22:16:53,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:16:54,300 WARN L193 SmtUtils]: Spent 417.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 22:16:54,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:16:54,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:16:54,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:16:54,350 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:16:54,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:16:54,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:16:54,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-27 22:16:54,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:16:54,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:16:54,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:16:54,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:16:54,352 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:16:54,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:16:54,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:16:54,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:16:54,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:16:54,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 22:16:54,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:16:54,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:16:54,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:16:54,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:16:54,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:16:54,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:16:54,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:16:54,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 22:16:54,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:16:54,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:16:54,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:16:54,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 22:16:54,381 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:16:54,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:16:54,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:16:54,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:16:54,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:16:54,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:16:54,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:16:54,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 22:16:54,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:16:54,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:16:54,385 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:16:54,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:16:54,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:16:54,386 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:16:54,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:16:54,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:16:54,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:16:54,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:16:54,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:16:54,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 22:16:54,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:16:54,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:16:54,390 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:16:54,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 22:16:54,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:16:54,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 22:16:54,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:16:54,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:16:54,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:16:54,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:16:54,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:16:54,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-27 22:16:54,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:16:54,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:16:54,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:16:54,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-10-27 22:16:54,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:16:54,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 22:16:54,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:16:54,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:16:54,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:16:54,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:16:54,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:16:54,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:16:54,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:16:54,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:16:54,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:16:54,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-27 22:16:54,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:16:54,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 22:16:54,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:16:54,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:16:54,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:16:54,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:16:54,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:16:54,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:16:54,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:16:54,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:16:54,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:16:54,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-27 22:16:54,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:16:54,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 22:16:54,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:16:54,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:16:54,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:16:54,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:16:54,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:16:54,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 22:16:54,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:16:54,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:16:54,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:16:54,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:16:54,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:16:54,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:16:54,471 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:16:54,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:16:54,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:16:54,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:16:54,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:16:54,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-27 22:16:54,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:16:54,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:16:54,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:16:54,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:16:54,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:16:54,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 22:16:54,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:16:54,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:16:54,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:16:54,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:16:54,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:16:54,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-27 22:16:54,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:16:54,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:16:54,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:16:54,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-27 22:16:54,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:16:54,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 22:16:54,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:16:54,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:16:54,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:16:54,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:16:54,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:16:54,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 22:16:54,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:16:54,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:16:54,497 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:16:54,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:16:54,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:16:54,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 22:16:54,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:16:54,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:16:54,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:16:54,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:16:54,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:16:54,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-27 22:16:54,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:16:54,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:16:54,515 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:16:54,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-27 22:16:54,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:16:54,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 22:16:54,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:16:54,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:16:54,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:16:54,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-27 22:16:54,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:16:54,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 22:16:54,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:16:54,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:16:54,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:16:54,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:16:54,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:16:54,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:16:54,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:16:54,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:16:54,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:16:54,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:16:54,544 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:16:54,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:16:54,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:16:54,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:16:54,549 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:16:54,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-27 22:16:54,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:16:54,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:16:54,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:16:54,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:16:54,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:16:54,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:16:54,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:16:54,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 22:16:54,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:16:54,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:16:54,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:16:54,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:16:54,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:16:54,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:16:54,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:16:54,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:16:54,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:16:54,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:16:54,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:16:54,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-27 22:16:54,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:16:54,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:16:54,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:16:54,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:16:54,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:16:54,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:16:54,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:16:54,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:16:54,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 22:16:54,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:16:54,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:16:54,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-10-27 22:16:54,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:16:54,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:16:54,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:16:54,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:16:54,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:16:54,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:16:54,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:16:54,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:16:54,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 22:16:54,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:16:54,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:16:54,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-10-27 22:16:54,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:16:54,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:16:54,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:16:54,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:16:54,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:16:54,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:16:54,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:16:54,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:16:54,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 22:16:54,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:16:54,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:16:54,618 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2020-10-27 22:16:54,618 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [665631841] [2020-10-27 22:16:54,619 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 22:16:54,620 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-27 22:16:54,620 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160285637] [2020-10-27 22:16:54,621 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-27 22:16:54,622 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:16:54,622 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-27 22:16:54,623 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-10-27 22:16:54,623 INFO L87 Difference]: Start difference. First operand 511 states and 710 transitions. Second operand 7 states. [2020-10-27 22:16:55,559 WARN L193 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-27 22:16:57,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:16:57,122 INFO L93 Difference]: Finished difference Result 849 states and 1170 transitions. [2020-10-27 22:16:57,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-27 22:16:57,123 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 125 [2020-10-27 22:16:57,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:16:57,129 INFO L225 Difference]: With dead ends: 849 [2020-10-27 22:16:57,129 INFO L226 Difference]: Without dead ends: 551 [2020-10-27 22:16:57,131 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-10-27 22:16:57,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 551 states. [2020-10-27 22:16:57,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 551 to 448. [2020-10-27 22:16:57,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 448 states. [2020-10-27 22:16:57,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 448 states to 448 states and 576 transitions. [2020-10-27 22:16:57,254 INFO L78 Accepts]: Start accepts. Automaton has 448 states and 576 transitions. Word has length 125 [2020-10-27 22:16:57,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:16:57,255 INFO L481 AbstractCegarLoop]: Abstraction has 448 states and 576 transitions. [2020-10-27 22:16:57,255 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-27 22:16:57,255 INFO L276 IsEmpty]: Start isEmpty. Operand 448 states and 576 transitions. [2020-10-27 22:16:57,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-10-27 22:16:57,257 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:16:57,258 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 22:16:57,258 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-27 22:16:57,258 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:16:57,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:16:57,259 INFO L82 PathProgramCache]: Analyzing trace with hash 1288370161, now seen corresponding path program 1 times [2020-10-27 22:16:57,259 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:16:57,259 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1281088111] [2020-10-27 22:16:57,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:16:57,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:16:57,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:16:57,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:16:57,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:16:57,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:16:58,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:16:59,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:16:59,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:17:01,953 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:17:01,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-27 22:17:01,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-27 22:17:01,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4669 [2020-10-27 22:17:01,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:17:01,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:17:01,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 54 [2020-10-27 22:17:01,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-27 22:17:01,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:17:02,465 WARN L193 SmtUtils]: Spent 464.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 22:17:02,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:17:02,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:17:02,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:17:02,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:17:02,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:17:02,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:17:02,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-27 22:17:02,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:17:02,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:17:02,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:17:02,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:17:02,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:17:02,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:17:02,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:17:02,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:17:02,540 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:17:02,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 22:17:02,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:17:02,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 22:17:02,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:17:02,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:17:02,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:17:02,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:17:02,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:17:02,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 22:17:02,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:17:02,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:17:02,544 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:17:02,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 22:17:02,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:17:02,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 22:17:02,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:17:02,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:17:02,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:17:02,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:17:02,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:17:02,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 22:17:02,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:17:02,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:17:02,548 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:17:02,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:17:02,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:17:02,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 22:17:02,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:17:02,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:17:02,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:17:02,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:17:02,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:17:02,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 22:17:02,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:17:02,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:17:02,552 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:17:02,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 22:17:02,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:17:02,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 22:17:02,553 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:17:02,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:17:02,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:17:02,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:17:02,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:17:02,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-27 22:17:02,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:17:02,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:17:02,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:17:02,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-10-27 22:17:02,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:17:02,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 22:17:02,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:17:02,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:17:02,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:17:02,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-27 22:17:02,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:17:02,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:17:02,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:17:02,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:17:02,610 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:17:02,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-27 22:17:02,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:17:02,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 22:17:02,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:17:02,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:17:02,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:17:02,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-27 22:17:02,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:17:02,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:17:02,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:17:02,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:17:02,626 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:17:02,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-27 22:17:02,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:17:02,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 22:17:02,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:17:02,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:17:02,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:17:02,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:17:02,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:17:02,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 22:17:02,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:17:02,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:17:02,632 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:17:02,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:17:02,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:17:02,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:17:02,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:17:02,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:17:02,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:17:02,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:17:02,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:17:02,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-27 22:17:02,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:17:02,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:17:02,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:17:02,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:17:02,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:17:02,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 22:17:02,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:17:02,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:17:02,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:17:02,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:17:02,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:17:02,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-27 22:17:02,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:17:02,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:17:02,647 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:17:02,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-27 22:17:02,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:17:02,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 22:17:02,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:17:02,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:17:02,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:17:02,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-27 22:17:02,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:17:02,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 22:17:02,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:17:02,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:17:02,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:17:02,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:17:02,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:17:02,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:17:02,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:17:02,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:17:02,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:17:02,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:17:02,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:17:02,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-27 22:17:02,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:17:02,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:17:02,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:17:02,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-27 22:17:02,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:17:02,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 22:17:02,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:17:02,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:17:02,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-27 22:17:02,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-27 22:17:02,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:17:02,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 22:17:02,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:17:02,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:17:02,694 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:17:02,694 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:17:02,694 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:17:02,694 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:17:02,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:17:02,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:17:02,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:17:02,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:17:02,695 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:17:02,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:17:02,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:17:02,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:17:02,701 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:17:02,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-27 22:17:02,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:17:02,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 22:17:02,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:17:02,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:17:02,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:17:02,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-27 22:17:02,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:17:02,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 22:17:02,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:17:02,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:17:02,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:17:02,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:17:02,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:17:02,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 22:17:02,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:17:02,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:17:02,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:17:02,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:17:02,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:17:02,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2020-10-27 22:17:02,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:17:02,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:17:02,710 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:17:02,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:17:02,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:17:02,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:17:02,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:17:02,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:17:02,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 22:17:02,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:17:02,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:17:02,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2020-10-27 22:17:02,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:17:02,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:17:02,715 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:17:02,715 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:17:02,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:17:02,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:17:02,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:17:02,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:17:02,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 22:17:02,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:17:02,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:17:02,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-27 22:17:02,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:17:02,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:17:02,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:17:02,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:17:02,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:17:02,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:17:02,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:17:02,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:17:02,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 22:17:02,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:17:02,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:17:02,747 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 42 proven. 3 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2020-10-27 22:17:02,748 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1281088111] [2020-10-27 22:17:02,749 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 22:17:02,749 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-27 22:17:02,749 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899162868] [2020-10-27 22:17:02,749 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-27 22:17:02,750 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:17:02,750 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-27 22:17:02,750 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-10-27 22:17:02,750 INFO L87 Difference]: Start difference. First operand 448 states and 576 transitions. Second operand 8 states. [2020-10-27 22:17:03,673 WARN L193 SmtUtils]: Spent 364.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-27 22:17:04,637 WARN L193 SmtUtils]: Spent 374.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-27 22:17:06,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:17:06,830 INFO L93 Difference]: Finished difference Result 1169 states and 1614 transitions. [2020-10-27 22:17:06,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-27 22:17:06,831 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 129 [2020-10-27 22:17:06,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:17:06,837 INFO L225 Difference]: With dead ends: 1169 [2020-10-27 22:17:06,838 INFO L226 Difference]: Without dead ends: 467 [2020-10-27 22:17:06,842 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=70, Invalid=170, Unknown=0, NotChecked=0, Total=240 [2020-10-27 22:17:06,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 467 states. [2020-10-27 22:17:06,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 467 to 353. [2020-10-27 22:17:06,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 353 states. [2020-10-27 22:17:06,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 353 states and 441 transitions. [2020-10-27 22:17:06,944 INFO L78 Accepts]: Start accepts. Automaton has 353 states and 441 transitions. Word has length 129 [2020-10-27 22:17:06,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:17:06,946 INFO L481 AbstractCegarLoop]: Abstraction has 353 states and 441 transitions. [2020-10-27 22:17:06,946 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-27 22:17:06,946 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states and 441 transitions. [2020-10-27 22:17:06,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-10-27 22:17:06,951 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:17:06,952 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 22:17:06,952 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-27 22:17:06,952 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:17:06,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:17:06,953 INFO L82 PathProgramCache]: Analyzing trace with hash -949801001, now seen corresponding path program 1 times [2020-10-27 22:17:06,953 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:17:06,953 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1126035496] [2020-10-27 22:17:06,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:17:06,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-27 22:17:07,002 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-27 22:17:07,003 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-27 22:17:07,009 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-27 22:17:07,060 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 10:17:07 BoogieIcfgContainer [2020-10-27 22:17:07,060 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-27 22:17:07,063 INFO L168 Benchmark]: Toolchain (without parser) took 77283.22 ms. Allocated memory was 166.7 MB in the beginning and 770.7 MB in the end (delta: 604.0 MB). Free memory was 140.5 MB in the beginning and 356.1 MB in the end (delta: -215.6 MB). Peak memory consumption was 389.5 MB. Max. memory is 8.0 GB. [2020-10-27 22:17:07,064 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 166.7 MB. Free memory is still 137.7 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-27 22:17:07,064 INFO L168 Benchmark]: CACSL2BoogieTranslator took 653.47 ms. Allocated memory is still 166.7 MB. Free memory was 139.9 MB in the beginning and 119.3 MB in the end (delta: 20.6 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. [2020-10-27 22:17:07,065 INFO L168 Benchmark]: Boogie Preprocessor took 159.53 ms. Allocated memory is still 166.7 MB. Free memory was 119.3 MB in the beginning and 115.5 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-10-27 22:17:07,072 INFO L168 Benchmark]: RCFGBuilder took 1576.06 ms. Allocated memory is still 166.7 MB. Free memory was 115.5 MB in the beginning and 65.9 MB in the end (delta: 49.6 MB). Peak memory consumption was 49.5 MB. Max. memory is 8.0 GB. [2020-10-27 22:17:07,075 INFO L168 Benchmark]: TraceAbstraction took 74876.70 ms. Allocated memory was 166.7 MB in the beginning and 770.7 MB in the end (delta: 604.0 MB). Free memory was 65.4 MB in the beginning and 356.1 MB in the end (delta: -290.7 MB). Peak memory consumption was 314.9 MB. Max. memory is 8.0 GB. [2020-10-27 22:17:07,081 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 166.7 MB. Free memory is still 137.7 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 653.47 ms. Allocated memory is still 166.7 MB. Free memory was 139.9 MB in the beginning and 119.3 MB in the end (delta: 20.6 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 159.53 ms. Allocated memory is still 166.7 MB. Free memory was 119.3 MB in the beginning and 115.5 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1576.06 ms. Allocated memory is still 166.7 MB. Free memory was 115.5 MB in the beginning and 65.9 MB in the end (delta: 49.6 MB). Peak memory consumption was 49.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 74876.70 ms. Allocated memory was 166.7 MB in the beginning and 770.7 MB in the end (delta: 604.0 MB). Free memory was 65.4 MB in the beginning and 356.1 MB in the end (delta: -290.7 MB). Peak memory consumption was 314.9 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L150] int pumpRunning = 0; [L151] int systemActive = 1; [L317] int cleanupTimeShifts = 4; [L585] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L826] int waterLevel = 1; [L827] int methaneLevelCritical = 0; [L393] int retValue_acc ; [L394] int tmp ; [L398] FCALL select_helpers() [L399] FCALL select_features() [L400] CALL, EXPR valid_product() [L817] int retValue_acc ; [L820] retValue_acc = 1 [L821] return (retValue_acc); [L400] RET, EXPR valid_product() [L400] tmp = valid_product() [L402] COND TRUE \read(tmp) [L404] FCALL setup() [L405] CALL runTest() [L384] CALL test() [L48] int splverifierCounter ; [L49] int tmp ; [L50] int tmp___0 ; [L51] int tmp___1 ; [L52] int tmp___2 ; [L55] splverifierCounter = 0 [L57] COND TRUE 1 [L59] COND TRUE splverifierCounter < 4 [L65] tmp = __VERIFIER_nondet_int() [L67] COND TRUE \read(tmp) [L69] CALL waterRise() [L844] COND TRUE waterLevel < 2 [L845] waterLevel = waterLevel + 1 [L69] RET waterRise() [L75] tmp___0 = __VERIFIER_nondet_int() [L77] COND FALSE !(\read(tmp___0)) [L85] tmp___2 = __VERIFIER_nondet_int() [L87] COND TRUE \read(tmp___2) [L102] CALL timeShift() [L157] COND FALSE !(\read(pumpRunning)) [L164] COND TRUE \read(systemActive) [L166] CALL processEnvironment() [L186] int tmp ; [L189] COND TRUE ! pumpRunning [L191] CALL, EXPR isHighWaterLevel() [L283] int retValue_acc ; [L284] int tmp ; [L285] int tmp___0 ; [L289] CALL, EXPR isHighWaterSensorDry() [L906] int retValue_acc ; [L909] COND FALSE !(waterLevel < 2) [L913] retValue_acc = 0 [L914] return (retValue_acc); [L289] RET, EXPR isHighWaterSensorDry() [L289] tmp = isHighWaterSensorDry() [L291] COND FALSE !(\read(tmp)) [L294] tmp___0 = 1 [L296] retValue_acc = tmp___0 [L297] return (retValue_acc); [L191] RET, EXPR isHighWaterLevel() [L191] tmp = isHighWaterLevel() [L193] COND TRUE \read(tmp) [L195] CALL activatePump() [L214] pumpRunning = 1 [L195] RET activatePump() [L166] RET processEnvironment() [L172] CALL __utac_acc__Specification4_spec__1() [L118] int tmp ; [L119] int tmp___0 ; [L123] CALL, EXPR getWaterLevel() [L897] int retValue_acc ; [L900] retValue_acc = waterLevel [L901] return (retValue_acc); [L123] RET, EXPR getWaterLevel() [L123] tmp = getWaterLevel() [L125] COND FALSE !(tmp == 0) [L172] RET __utac_acc__Specification4_spec__1() [L102] RET timeShift() [L57] COND TRUE 1 [L59] COND TRUE splverifierCounter < 4 [L65] tmp = __VERIFIER_nondet_int() [L67] COND FALSE !(\read(tmp)) [L75] tmp___0 = __VERIFIER_nondet_int() [L77] COND FALSE !(\read(tmp___0)) [L85] tmp___2 = __VERIFIER_nondet_int() [L87] COND TRUE \read(tmp___2) [L102] CALL timeShift() [L157] COND TRUE \read(pumpRunning) [L159] CALL lowerWaterLevel() [L832] COND TRUE waterLevel > 0 [L833] waterLevel = waterLevel - 1 [L159] RET lowerWaterLevel() [L164] COND TRUE \read(systemActive) [L166] CALL processEnvironment() [L186] int tmp ; [L189] COND FALSE !(! pumpRunning) [L204] FCALL processEnvironment__wrappee__base() [L166] RET processEnvironment() [L172] CALL __utac_acc__Specification4_spec__1() [L118] int tmp ; [L119] int tmp___0 ; [L123] CALL, EXPR getWaterLevel() [L897] int retValue_acc ; [L900] retValue_acc = waterLevel [L901] return (retValue_acc); [L123] RET, EXPR getWaterLevel() [L123] tmp = getWaterLevel() [L125] COND FALSE !(tmp == 0) [L172] RET __utac_acc__Specification4_spec__1() [L102] RET timeShift() [L57] COND TRUE 1 [L59] COND TRUE splverifierCounter < 4 [L65] tmp = __VERIFIER_nondet_int() [L67] COND FALSE !(\read(tmp)) [L75] tmp___0 = __VERIFIER_nondet_int() [L77] COND FALSE !(\read(tmp___0)) [L85] tmp___2 = __VERIFIER_nondet_int() [L87] COND TRUE \read(tmp___2) [L102] CALL timeShift() [L157] COND TRUE \read(pumpRunning) [L159] CALL lowerWaterLevel() [L832] COND TRUE waterLevel > 0 [L833] waterLevel = waterLevel - 1 [L159] RET lowerWaterLevel() [L164] COND TRUE \read(systemActive) [L166] CALL processEnvironment() [L186] int tmp ; [L189] COND FALSE !(! pumpRunning) [L204] FCALL processEnvironment__wrappee__base() [L166] RET processEnvironment() [L172] CALL __utac_acc__Specification4_spec__1() [L118] int tmp ; [L119] int tmp___0 ; [L123] CALL, EXPR getWaterLevel() [L897] int retValue_acc ; [L900] retValue_acc = waterLevel [L901] return (retValue_acc); [L123] RET, EXPR getWaterLevel() [L123] tmp = getWaterLevel() [L125] COND TRUE tmp == 0 [L127] CALL, EXPR isPumpRunning() [L238] int retValue_acc ; [L241] retValue_acc = pumpRunning [L242] return (retValue_acc); [L127] RET, EXPR isPumpRunning() [L127] tmp___0 = isPumpRunning() [L129] COND TRUE \read(tmp___0) [L131] CALL __automaton_fail() [L786] CALL reach_error() [L3] __assert_fail("0", "minepump_spec4_product35.cil.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 39 procedures, 233 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 74.7s, OverallIterations: 8, TraceHistogramMax: 3, AutomataDifference: 33.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 902 SDtfs, 1906 SDslu, 1354 SDs, 0 SdLazy, 5139 SolverSat, 1463 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 17.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 310 GetRequests, 210 SyntacticMatches, 7 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 298 ImplicationChecksByTransitivity, 15.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=511occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 7 MinimizatonAttempts, 734 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 39.6s InterpolantComputationTime, 765 NumberOfCodeBlocks, 765 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 609 ConstructedInterpolants, 0 QuantifiedInterpolants, 209900 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 5 PerfectInterpolantSequences, 123/128 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...