/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=SHALLOWEST --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_product36.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 03:41:30,235 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 03:41:30,238 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 03:41:30,291 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 03:41:30,292 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 03:41:30,299 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 03:41:30,302 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 03:41:30,306 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 03:41:30,310 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 03:41:30,318 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 03:41:30,319 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 03:41:30,321 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 03:41:30,321 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 03:41:30,325 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 03:41:30,327 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 03:41:30,330 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 03:41:30,331 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 03:41:30,334 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 03:41:30,354 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 03:41:30,360 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 03:41:30,362 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 03:41:30,365 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 03:41:30,367 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 03:41:30,369 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 03:41:30,377 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 03:41:30,377 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 03:41:30,378 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 03:41:30,379 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 03:41:30,382 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 03:41:30,383 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 03:41:30,383 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 03:41:30,384 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 03:41:30,386 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 03:41:30,388 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 03:41:30,389 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 03:41:30,389 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 03:41:30,390 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 03:41:30,390 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 03:41:30,391 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 03:41:30,392 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 03:41:30,392 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 03:41:30,401 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 03:41:30,453 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 03:41:30,453 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 03:41:30,458 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 03:41:30,458 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 03:41:30,458 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 03:41:30,459 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 03:41:30,459 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 03:41:30,459 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 03:41:30,459 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 03:41:30,459 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 03:41:30,461 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 03:41:30,461 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 03:41:30,461 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 03:41:30,461 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 03:41:30,461 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 03:41:30,462 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 03:41:30,462 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 03:41:30,462 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 03:41:30,462 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 03:41:30,463 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 03:41:30,463 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 03:41:30,463 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 03:41:30,463 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 03:41:30,463 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 03:41:30,464 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 03:41:30,464 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 03:41:30,464 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 03:41:30,464 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 03:41:30,465 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 03:41:30,465 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 03:41:30,883 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 03:41:30,916 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 03:41:30,919 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 03:41:30,921 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 03:41:30,922 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 03:41:30,923 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product36.cil.c [2020-10-27 03:41:31,004 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/adbd30ae6/8bdbb886b9de4061bde8933f18621fb9/FLAG7d131933a [2020-10-27 03:41:31,862 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 03:41:31,862 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product36.cil.c [2020-10-27 03:41:31,889 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/adbd30ae6/8bdbb886b9de4061bde8933f18621fb9/FLAG7d131933a [2020-10-27 03:41:32,102 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/adbd30ae6/8bdbb886b9de4061bde8933f18621fb9 [2020-10-27 03:41:32,106 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 03:41:32,113 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 03:41:32,115 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 03:41:32,116 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 03:41:32,123 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 03:41:32,124 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 03:41:32" (1/1) ... [2020-10-27 03:41:32,128 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@682c3bce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:41:32, skipping insertion in model container [2020-10-27 03:41:32,128 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 03:41:32" (1/1) ... [2020-10-27 03:41:32,138 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 03:41:32,183 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 03:41:32,516 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 03:41:32,528 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 03:41:32,632 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 03:41:32,668 INFO L208 MainTranslator]: Completed translation [2020-10-27 03:41:32,668 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:41:32 WrapperNode [2020-10-27 03:41:32,668 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 03:41:32,670 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 03:41:32,670 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 03:41:32,670 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 03:41:32,683 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:41:32" (1/1) ... [2020-10-27 03:41:32,684 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:41:32" (1/1) ... [2020-10-27 03:41:32,703 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:41:32" (1/1) ... [2020-10-27 03:41:32,703 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:41:32" (1/1) ... [2020-10-27 03:41:32,737 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:41:32" (1/1) ... [2020-10-27 03:41:32,749 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:41:32" (1/1) ... [2020-10-27 03:41:32,756 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:41:32" (1/1) ... [2020-10-27 03:41:32,765 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 03:41:32,766 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 03:41:32,766 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 03:41:32,766 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 03:41:32,767 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:41:32" (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 03:41:32,906 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 03:41:32,906 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 03:41:32,907 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-27 03:41:32,907 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 03:41:32,907 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-27 03:41:32,907 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-27 03:41:32,907 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-10-27 03:41:32,907 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-27 03:41:32,908 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-27 03:41:32,908 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-27 03:41:32,908 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-27 03:41:32,908 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-27 03:41:32,908 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-27 03:41:32,908 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-10-27 03:41:32,908 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-10-27 03:41:32,909 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-10-27 03:41:32,909 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-27 03:41:32,909 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-27 03:41:32,909 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-27 03:41:32,909 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-27 03:41:32,909 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 03:41:32,910 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-27 03:41:32,910 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-27 03:41:32,910 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-27 03:41:32,910 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-27 03:41:32,910 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-27 03:41:32,910 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-27 03:41:32,911 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-27 03:41:32,911 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-27 03:41:32,911 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-27 03:41:32,911 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-27 03:41:32,911 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-27 03:41:32,911 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-27 03:41:32,911 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-27 03:41:32,912 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-27 03:41:32,912 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-27 03:41:32,912 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-27 03:41:32,912 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-27 03:41:32,912 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-10-27 03:41:32,912 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-10-27 03:41:32,913 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 03:41:32,913 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 03:41:32,913 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 03:41:32,913 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 03:41:32,913 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-27 03:41:32,913 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-27 03:41:32,914 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-27 03:41:32,914 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-27 03:41:32,914 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-10-27 03:41:32,914 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-10-27 03:41:32,914 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-27 03:41:32,914 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-27 03:41:32,914 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-27 03:41:32,915 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-27 03:41:32,915 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-27 03:41:32,915 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-27 03:41:32,915 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-10-27 03:41:32,915 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-27 03:41:32,915 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-27 03:41:32,916 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-27 03:41:32,916 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-27 03:41:32,916 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-10-27 03:41:32,916 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-27 03:41:32,916 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-10-27 03:41:32,916 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-10-27 03:41:32,916 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-27 03:41:32,917 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-27 03:41:32,917 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-27 03:41:32,917 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-27 03:41:32,917 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-27 03:41:32,917 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-27 03:41:32,917 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-27 03:41:32,917 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 03:41:32,918 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-27 03:41:32,918 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-27 03:41:32,918 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-27 03:41:32,918 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-27 03:41:32,918 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-27 03:41:32,918 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-27 03:41:32,919 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-27 03:41:32,919 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 03:41:32,919 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-27 03:41:32,919 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-27 03:41:32,919 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 03:41:32,919 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-27 03:41:32,919 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-27 03:41:32,920 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 03:41:32,920 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-27 03:41:32,920 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-27 03:41:32,920 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-27 03:41:32,920 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-27 03:41:32,920 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 03:41:32,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 03:41:32,921 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 03:41:34,587 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 03:41:34,587 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-27 03:41:34,593 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 03:41:34 BoogieIcfgContainer [2020-10-27 03:41:34,593 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 03:41:34,598 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 03:41:34,598 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 03:41:34,602 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 03:41:34,602 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 03:41:32" (1/3) ... [2020-10-27 03:41:34,604 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d12675d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 03:41:34, skipping insertion in model container [2020-10-27 03:41:34,604 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:41:32" (2/3) ... [2020-10-27 03:41:34,605 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d12675d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 03:41:34, skipping insertion in model container [2020-10-27 03:41:34,605 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 03:41:34" (3/3) ... [2020-10-27 03:41:34,607 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product36.cil.c [2020-10-27 03:41:34,621 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 03:41:34,627 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-27 03:41:34,649 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-27 03:41:34,685 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 03:41:34,685 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 03:41:34,685 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 03:41:34,686 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 03:41:34,686 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 03:41:34,686 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 03:41:34,686 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 03:41:34,686 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 03:41:34,711 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states. [2020-10-27 03:41:34,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-10-27 03:41:34,720 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 03:41:34,721 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 03:41:34,722 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 03:41:34,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 03:41:34,729 INFO L82 PathProgramCache]: Analyzing trace with hash 1354382005, now seen corresponding path program 1 times [2020-10-27 03:41:34,739 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 03:41:34,739 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1966100669] [2020-10-27 03:41:34,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 03:41:35,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:41:35,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:41:35,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:41:35,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:41:37,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:41:37,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:41:40,086 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:41:40,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-10-27 03:41:40,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 03:41:40,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-10-27 03:41:40,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:41:40,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-27 03:41:40,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:41:40,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-27 03:41:40,093 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-27 03:41:40,608 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 03:41:40,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 03:41:40,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:41:40,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:41:40,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:41:40,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:41:40,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:41:40,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 168 [2020-10-27 03:41:40,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:41:40,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:41:40,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:41:40,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 03:41:40,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:41:40,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 03:41:40,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:41:40,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:41:40,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:41:40,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:41:40,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:41:40,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 03:41:40,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:41:40,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:41:40,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:41:40,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 03:41:40,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 03:41:40,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 03:41:40,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:41:40,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:41:40,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:41:40,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:41:40,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:41:40,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 03:41:40,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:41:40,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:41:40,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:41:40,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 03:41:40,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:41:40,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 03:41:40,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:41:40,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:41:40,896 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:41:40,896 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:41:40,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:41:40,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 03:41:40,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:41:40,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:41:40,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:41:40,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 03:41:40,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:41:40,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 03:41:40,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:41:40,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:41:40,907 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:41:40,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:41:40,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:41:40,907 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 03:41:40,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:41:40,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:41:40,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:41:40,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 03:41:40,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:41:40,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-27 03:41:40,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:41:40,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:41:40,919 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:41:40,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:41:40,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:41:40,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 03:41:40,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:41:40,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:41:40,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:41:40,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 03:41:40,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 03:41:40,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-27 03:41:40,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:41:40,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:41:40,935 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:41:40,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:41:40,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:41:40,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 03:41:40,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:41:40,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 03:41:40,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:41:40,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 03:41:40,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:41:40,977 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 03:41:40,978 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1966100669] [2020-10-27 03:41:40,980 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 03:41:40,981 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-27 03:41:40,981 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811568078] [2020-10-27 03:41:40,987 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-27 03:41:40,988 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 03:41:41,004 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-27 03:41:41,006 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-27 03:41:41,009 INFO L87 Difference]: Start difference. First operand 165 states. Second operand 7 states. [2020-10-27 03:41:41,673 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-27 03:41:42,874 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-27 03:41:43,360 WARN L193 SmtUtils]: Spent 384.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-27 03:41:43,832 WARN L193 SmtUtils]: Spent 429.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-27 03:41:44,662 WARN L193 SmtUtils]: Spent 355.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-27 03:41:45,154 WARN L193 SmtUtils]: Spent 406.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-27 03:41:46,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 03:41:46,634 INFO L93 Difference]: Finished difference Result 371 states and 512 transitions. [2020-10-27 03:41:46,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-27 03:41:46,637 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 47 [2020-10-27 03:41:46,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 03:41:46,651 INFO L225 Difference]: With dead ends: 371 [2020-10-27 03:41:46,651 INFO L226 Difference]: Without dead ends: 227 [2020-10-27 03:41:46,665 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2020-10-27 03:41:46,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2020-10-27 03:41:46,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 191. [2020-10-27 03:41:46,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 191 states. [2020-10-27 03:41:46,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 239 transitions. [2020-10-27 03:41:46,837 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 239 transitions. Word has length 47 [2020-10-27 03:41:46,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 03:41:46,838 INFO L481 AbstractCegarLoop]: Abstraction has 191 states and 239 transitions. [2020-10-27 03:41:46,838 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-27 03:41:46,838 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 239 transitions. [2020-10-27 03:41:46,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2020-10-27 03:41:46,843 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 03:41:46,843 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 03:41:46,843 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 03:41:46,844 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 03:41:46,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 03:41:46,844 INFO L82 PathProgramCache]: Analyzing trace with hash -1582748288, now seen corresponding path program 1 times [2020-10-27 03:41:46,844 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 03:41:46,845 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [172873231] [2020-10-27 03:41:46,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 03:41:46,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:41:46,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:41:46,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:41:51,496 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:41:51,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-27 03:41:51,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:41:51,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4609 [2020-10-27 03:41:51,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:41:51,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-27 03:41:51,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:41:51,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 94 [2020-10-27 03:41:51,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:41:51,912 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 03:41:51,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 03:41:51,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:41:51,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:41:52,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:41:52,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:41:52,019 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:41:52,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-10-27 03:41:52,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:41:52,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:41:52,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:41:52,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 03:41:52,020 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:41:52,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 03:41:52,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:41:52,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:41:52,043 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:41:52,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:41:52,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:41:52,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:41:52,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:41:52,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:41:52,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:41:52,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 03:41:52,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:41:52,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 03:41:52,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:41:52,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:41:52,050 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:41:52,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:41:52,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:41:52,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 03:41:52,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:41:52,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:41:52,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:41:52,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 03:41:52,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:41:52,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 03:41:52,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:41:52,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:41:52,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:41:52,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:41:52,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:41:52,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 03:41:52,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:41:52,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:41:52,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:41:52,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 03:41:52,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:41:52,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 03:41:52,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:41:52,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:41:52,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:41:52,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:41:52,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:41:52,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:41:52,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:41:52,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:41:52,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:41:52,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 03:41:52,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:41:52,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-27 03:41:52,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:41:52,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:41:52,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:41:52,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:41:52,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-27 03:41:52,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:41:52,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-27 03:41:52,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:41:52,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:41:52,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:41:52,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-27 03:41:52,128 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:41:52,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 03:41:52,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:41:52,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:41:52,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:41:52,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-27 03:41:52,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:41:52,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 03:41:52,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:41:52,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:41:52,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:41:52,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:41:52,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:41:52,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 03:41:52,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:41:52,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:41:52,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:41:52,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 03:41:52,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:41:52,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 03:41:52,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:41:52,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:41:52,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:41:52,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:41:52,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:41:52,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-27 03:41:52,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:41:52,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:41:52,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:41:52,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:41:52,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:41:52,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:41:52,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:41:52,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:41:52,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:41:52,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:41:52,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:41:52,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-27 03:41:52,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:41:52,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:41:52,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:41:52,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:41:52,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:41:52,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 03:41:52,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:41:52,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 03:41:52,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:41:52,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 03:41:52,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:41:52,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-27 03:41:52,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:41:52,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:41:52,195 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:41:52,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:41:52,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:41:52,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:41:52,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:41:52,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:41:52,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:41:52,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:41:52,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:41:52,217 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 03:41:52,219 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [172873231] [2020-10-27 03:41:52,220 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 03:41:52,220 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-27 03:41:52,220 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037567178] [2020-10-27 03:41:52,223 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-27 03:41:52,224 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 03:41:52,224 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-27 03:41:52,225 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-27 03:41:52,225 INFO L87 Difference]: Start difference. First operand 191 states and 239 transitions. Second operand 8 states. [2020-10-27 03:41:52,971 WARN L193 SmtUtils]: Spent 401.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-27 03:41:53,970 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-27 03:41:54,512 WARN L193 SmtUtils]: Spent 390.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-27 03:41:54,955 WARN L193 SmtUtils]: Spent 347.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-27 03:41:55,586 WARN L193 SmtUtils]: Spent 373.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-27 03:41:57,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 03:41:57,450 INFO L93 Difference]: Finished difference Result 570 states and 797 transitions. [2020-10-27 03:41:57,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-27 03:41:57,451 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 76 [2020-10-27 03:41:57,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 03:41:57,457 INFO L225 Difference]: With dead ends: 570 [2020-10-27 03:41:57,457 INFO L226 Difference]: Without dead ends: 403 [2020-10-27 03:41:57,460 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2020-10-27 03:41:57,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2020-10-27 03:41:57,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 330. [2020-10-27 03:41:57,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 330 states. [2020-10-27 03:41:57,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 421 transitions. [2020-10-27 03:41:57,561 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 421 transitions. Word has length 76 [2020-10-27 03:41:57,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 03:41:57,561 INFO L481 AbstractCegarLoop]: Abstraction has 330 states and 421 transitions. [2020-10-27 03:41:57,562 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-27 03:41:57,562 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 421 transitions. [2020-10-27 03:41:57,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-10-27 03:41:57,567 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 03:41:57,567 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 03:41:57,567 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 03:41:57,567 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 03:41:57,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 03:41:57,568 INFO L82 PathProgramCache]: Analyzing trace with hash -1372827078, now seen corresponding path program 1 times [2020-10-27 03:41:57,568 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 03:41:57,569 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [437027042] [2020-10-27 03:41:57,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 03:41:57,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:41:57,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:41:57,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:41:57,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:42:02,615 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:42:02,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-27 03:42:02,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 03:42:02,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-10-27 03:42:02,616 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:42:02,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-27 03:42:02,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:42:02,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 100 [2020-10-27 03:42:02,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:42:03,001 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 03:42:03,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 03:42:03,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:42:03,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:42:03,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:42:03,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:42:03,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:42:03,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-10-27 03:42:03,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:42:03,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:42:03,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:42:03,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 03:42:03,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:42:03,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 03:42:03,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:42:03,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:42:03,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:42:03,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:42:03,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:42:03,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:42:03,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:42:03,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:42:03,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:42:03,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 03:42:03,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:42:03,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 03:42:03,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:42:03,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:42:03,121 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:42:03,121 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:42:03,121 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:42:03,121 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:42:03,121 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:42:03,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:42:03,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:42:03,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 03:42:03,122 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:42:03,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 03:42:03,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:42:03,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:42:03,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:42:03,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:42:03,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:42:03,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:42:03,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:42:03,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:42:03,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:42:03,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 03:42:03,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:42:03,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 03:42:03,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:42:03,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:42:03,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:42:03,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:42:03,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:42:03,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:42:03,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:42:03,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:42:03,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:42:03,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 03:42:03,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:42:03,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-27 03:42:03,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:42:03,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:42:03,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:42:03,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:42:03,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:42:03,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 03:42:03,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:42:03,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 03:42:03,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 03:42:03,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 03:42:03,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:42:03,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-27 03:42:03,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:42:03,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:42:03,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:42:03,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:42:03,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:42:03,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-27 03:42:03,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 03:42:03,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-27 03:42:03,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:42:03,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:42:03,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:42:03,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-27 03:42:03,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:42:03,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 03:42:03,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:42:03,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:42:03,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:42:03,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-27 03:42:03,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:42:03,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 03:42:03,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:42:03,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:42:03,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:42:03,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:42:03,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:42:03,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 03:42:03,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:42:03,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:42:03,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:42:03,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 03:42:03,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:42:03,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:42:03,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:42:03,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:42:03,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:42:03,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:42:03,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:42:03,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-27 03:42:03,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:42:03,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:42:03,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:42:03,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:42:03,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:42:03,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 03:42:03,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:42:03,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:42:03,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:42:03,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:42:03,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:42:03,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-27 03:42:03,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:42:03,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:42:03,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:42:03,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:42:03,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:42:03,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 03:42:03,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:42:03,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 03:42:03,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:42:03,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 03:42:03,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:42:03,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-27 03:42:03,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:42:03,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:42:03,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:42:03,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:42:03,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:42:03,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:42:03,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:42:03,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:42:03,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:42:03,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:42:03,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:42:03,358 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 03:42:03,359 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [437027042] [2020-10-27 03:42:03,359 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 03:42:03,359 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-27 03:42:03,359 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867346410] [2020-10-27 03:42:03,360 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-27 03:42:03,360 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 03:42:03,360 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-27 03:42:03,361 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2020-10-27 03:42:03,361 INFO L87 Difference]: Start difference. First operand 330 states and 421 transitions. Second operand 11 states. [2020-10-27 03:42:04,045 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-27 03:42:04,965 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-27 03:42:05,366 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-27 03:42:06,319 WARN L193 SmtUtils]: Spent 368.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-27 03:42:06,800 WARN L193 SmtUtils]: Spent 376.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-27 03:42:07,237 WARN L193 SmtUtils]: Spent 369.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-27 03:42:08,525 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-27 03:42:11,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 03:42:11,605 INFO L93 Difference]: Finished difference Result 802 states and 1252 transitions. [2020-10-27 03:42:11,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-27 03:42:11,605 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 80 [2020-10-27 03:42:11,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 03:42:11,615 INFO L225 Difference]: With dead ends: 802 [2020-10-27 03:42:11,615 INFO L226 Difference]: Without dead ends: 625 [2020-10-27 03:42:11,617 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 133 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=144, Invalid=558, Unknown=0, NotChecked=0, Total=702 [2020-10-27 03:42:11,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 625 states. [2020-10-27 03:42:11,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 625 to 467. [2020-10-27 03:42:11,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 467 states. [2020-10-27 03:42:11,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 467 states to 467 states and 627 transitions. [2020-10-27 03:42:11,809 INFO L78 Accepts]: Start accepts. Automaton has 467 states and 627 transitions. Word has length 80 [2020-10-27 03:42:11,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 03:42:11,810 INFO L481 AbstractCegarLoop]: Abstraction has 467 states and 627 transitions. [2020-10-27 03:42:11,810 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-27 03:42:11,810 INFO L276 IsEmpty]: Start isEmpty. Operand 467 states and 627 transitions. [2020-10-27 03:42:11,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-10-27 03:42:11,815 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 03:42:11,816 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-27 03:42:11,816 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-27 03:42:11,816 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 03:42:11,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 03:42:11,817 INFO L82 PathProgramCache]: Analyzing trace with hash -533519641, now seen corresponding path program 1 times [2020-10-27 03:42:11,817 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 03:42:11,817 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1762134380] [2020-10-27 03:42:11,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 03:42:11,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:42:11,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:42:11,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:42:11,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:42:12,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:42:16,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:42:16,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 142 [2020-10-27 03:42:16,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 03:42:16,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-27 03:42:16,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:42:16,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-27 03:42:16,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:42:16,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-27 03:42:16,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:42:17,228 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 03:42:17,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 03:42:17,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:42:17,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:42:17,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:42:17,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:42:17,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:42:17,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-27 03:42:17,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:42:17,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:42:17,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:42:17,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 03:42:17,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:42:17,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 03:42:17,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:42:17,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:42:17,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:42:17,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:42:17,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:42:17,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:42:17,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:42:17,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:42:17,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:42:17,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 03:42:17,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:42:17,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 03:42:17,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:42:17,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:42:17,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:42:17,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:42:17,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:42:17,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:42:17,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:42:17,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:42:17,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:42:17,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 03:42:17,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:42:17,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 03:42:17,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:42:17,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:42:17,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:42:17,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:42:17,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:42:17,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 03:42:17,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:42:17,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:42:17,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:42:17,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 03:42:17,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:42:17,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 03:42:17,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:42:17,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:42:17,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:42:17,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:42:17,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:42:17,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:42:17,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:42:17,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:42:17,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:42:17,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 03:42:17,344 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:42:17,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-27 03:42:17,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:42:17,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:42:17,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:42:17,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:42:17,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:42:17,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-10-27 03:42:17,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 03:42:17,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-10-27 03:42:17,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:42:17,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:42:17,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:42:17,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-10-27 03:42:17,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:42:17,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 03:42:17,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:42:17,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:42:17,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:42:17,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:42:17,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-27 03:42:17,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:42:17,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-27 03:42:17,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:42:17,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:42:17,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:42:17,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:42:17,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:42:17,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 03:42:17,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:42:17,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:42:17,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:42:17,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-27 03:42:17,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:42:17,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 03:42:17,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:42:17,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:42:17,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:42:17,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:42:17,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:42:17,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 03:42:17,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:42:17,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:42:17,489 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:42:17,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 03:42:17,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:42:17,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:42:17,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:42:17,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:42:17,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:42:17,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:42:17,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:42:17,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-27 03:42:17,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:42:17,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:42:17,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:42:17,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:42:17,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:42:17,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:42:17,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:42:17,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:42:17,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:42:17,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:42:17,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:42:17,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-27 03:42:17,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:42:17,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:42:17,501 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:42:17,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-27 03:42:17,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:42:17,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:42:17,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:42:17,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:42:17,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:42:17,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:42:17,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:42:17,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 03:42:17,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:42:17,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:42:17,507 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:42:17,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:42:17,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:42:17,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:42:17,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:42:17,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:42:17,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:42:17,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:42:17,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:42:17,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-27 03:42:17,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:42:17,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:42:17,527 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:42:17,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:42:17,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:42:17,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 03:42:17,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:42:17,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:42:17,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:42:17,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 03:42:17,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:42:17,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-27 03:42:17,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:42:17,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:42:17,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:42:17,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:42:17,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:42:17,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:42:17,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:42:17,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:42:17,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:42:17,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:42:17,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:42:17,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-27 03:42:17,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:42:17,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:42:17,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:42:17,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:42:17,538 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:42:17,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:42:17,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:42:17,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:42:17,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:42:17,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:42:17,539 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:42:17,557 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-27 03:42:17,557 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1762134380] [2020-10-27 03:42:17,558 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 03:42:17,558 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-27 03:42:17,558 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268533764] [2020-10-27 03:42:17,559 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-27 03:42:17,559 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 03:42:17,559 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-27 03:42:17,560 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-27 03:42:17,560 INFO L87 Difference]: Start difference. First operand 467 states and 627 transitions. Second operand 8 states. [2020-10-27 03:42:18,028 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-27 03:42:18,836 WARN L193 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-27 03:42:22,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 03:42:22,250 INFO L93 Difference]: Finished difference Result 1718 states and 2576 transitions. [2020-10-27 03:42:22,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-27 03:42:22,251 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 94 [2020-10-27 03:42:22,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 03:42:22,264 INFO L225 Difference]: With dead ends: 1718 [2020-10-27 03:42:22,264 INFO L226 Difference]: Without dead ends: 1275 [2020-10-27 03:42:22,269 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=84, Invalid=156, Unknown=0, NotChecked=0, Total=240 [2020-10-27 03:42:22,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1275 states. [2020-10-27 03:42:22,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1275 to 969. [2020-10-27 03:42:22,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 969 states. [2020-10-27 03:42:22,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 969 states to 969 states and 1328 transitions. [2020-10-27 03:42:22,543 INFO L78 Accepts]: Start accepts. Automaton has 969 states and 1328 transitions. Word has length 94 [2020-10-27 03:42:22,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 03:42:22,544 INFO L481 AbstractCegarLoop]: Abstraction has 969 states and 1328 transitions. [2020-10-27 03:42:22,544 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-27 03:42:22,544 INFO L276 IsEmpty]: Start isEmpty. Operand 969 states and 1328 transitions. [2020-10-27 03:42:22,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2020-10-27 03:42:22,551 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 03:42:22,552 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 03:42:22,552 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-27 03:42:22,552 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 03:42:22,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 03:42:22,553 INFO L82 PathProgramCache]: Analyzing trace with hash -1651678684, now seen corresponding path program 1 times [2020-10-27 03:42:22,553 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 03:42:22,554 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1215005300] [2020-10-27 03:42:22,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 03:42:22,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:42:22,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:42:22,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:42:23,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:42:23,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 154 [2020-10-27 03:42:23,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:42:23,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 782 [2020-10-27 03:42:23,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:42:23,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:42:23,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-10-27 03:42:23,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-27 03:42:23,368 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:42:23,720 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 03:42:23,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 03:42:23,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:42:23,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:42:23,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:42:23,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:42:23,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:42:23,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-27 03:42:23,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:42:23,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:42:23,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:42:23,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:42:23,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:42:23,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 03:42:23,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:42:23,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:42:23,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:42:23,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:42:23,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:42:23,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 03:42:23,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:42:23,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:42:23,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:42:23,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:42:23,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:42:23,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 03:42:23,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:42:23,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:42:23,775 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:42:23,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:42:23,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:42:23,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 03:42:23,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:42:23,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:42:23,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:42:23,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:42:23,776 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:42:23,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 03:42:23,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:42:23,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:42:23,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:42:23,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:42:23,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:42:23,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:42:23,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:42:23,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:42:23,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:42:23,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:42:23,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:42:23,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 03:42:23,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:42:23,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:42:23,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:42:23,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:42:23,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:42:23,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 03:42:23,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:42:23,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:42:23,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:42:23,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:42:23,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:42:23,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-27 03:42:23,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:42:23,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:42:23,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:42:23,833 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:42:23,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-10-27 03:42:23,833 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:42:23,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-27 03:42:23,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:42:23,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 03:42:23,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-27 03:42:23,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 03:42:23,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:42:23,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 03:42:23,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:42:23,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:42:23,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:42:23,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-27 03:42:23,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:42:23,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-27 03:42:23,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:42:23,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 03:42:23,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-27 03:42:23,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 03:42:23,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:42:23,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 03:42:23,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:42:23,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:42:23,927 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:42:23,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-27 03:42:23,927 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:42:23,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 03:42:23,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:42:23,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 03:42:23,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:42:23,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-27 03:42:23,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:42:23,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 03:42:23,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:42:23,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:42:23,959 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:42:23,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 03:42:23,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:42:23,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:42:23,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:42:23,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:42:23,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:42:23,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:42:23,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:42:23,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-27 03:42:23,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:42:23,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:42:23,965 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:42:23,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:42:23,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:42:23,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:42:23,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:42:23,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:42:23,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:42:23,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:42:23,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:42:23,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-27 03:42:23,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:42:23,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:42:23,978 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:42:23,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-27 03:42:23,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:42:23,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 03:42:23,979 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:42:23,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:42:23,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-27 03:42:23,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:42:23,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:42:23,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 03:42:23,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:42:23,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:42:23,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:42:23,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:42:23,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:42:23,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:42:23,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:42:23,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:42:23,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:42:23,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:42:23,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:42:24,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-27 03:42:24,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:42:24,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:42:24,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:42:24,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:42:24,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:42:24,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:42:24,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:42:24,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:42:24,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:42:24,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:42:24,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:42:24,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-27 03:42:24,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:42:24,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:42:24,010 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:42:24,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 03:42:24,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:42:24,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:42:24,011 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:42:24,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:42:24,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 03:42:24,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:42:24,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:42:24,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 03:42:24,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:42:24,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:42:24,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:42:24,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:42:24,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:42:24,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:42:24,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:42:24,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:42:24,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:42:24,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:42:24,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:42:24,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-27 03:42:24,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:42:24,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:42:24,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:42:24,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:42:24,019 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:42:24,019 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:42:24,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:42:24,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:42:24,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:42:24,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:42:24,020 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:42:24,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-10-27 03:42:24,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:42:24,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:42:24,023 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:42:24,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:42:24,024 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:42:24,024 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:42:24,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:42:24,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:42:24,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:42:24,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:42:24,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:42:24,042 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-10-27 03:42:24,042 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1215005300] [2020-10-27 03:42:24,042 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 03:42:24,043 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-27 03:42:24,043 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113425436] [2020-10-27 03:42:24,043 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-27 03:42:24,044 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 03:42:24,044 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-27 03:42:24,044 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2020-10-27 03:42:24,045 INFO L87 Difference]: Start difference. First operand 969 states and 1328 transitions. Second operand 11 states. [2020-10-27 03:42:24,914 WARN L193 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-27 03:42:25,911 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-27 03:42:26,284 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-27 03:42:26,702 WARN L193 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-27 03:42:27,102 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-27 03:42:28,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 03:42:28,477 INFO L93 Difference]: Finished difference Result 1905 states and 2625 transitions. [2020-10-27 03:42:28,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-27 03:42:28,478 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 102 [2020-10-27 03:42:28,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 03:42:28,491 INFO L225 Difference]: With dead ends: 1905 [2020-10-27 03:42:28,491 INFO L226 Difference]: Without dead ends: 960 [2020-10-27 03:42:28,497 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=80, Invalid=262, Unknown=0, NotChecked=0, Total=342 [2020-10-27 03:42:28,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 960 states. [2020-10-27 03:42:28,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 960 to 864. [2020-10-27 03:42:28,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 864 states. [2020-10-27 03:42:28,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 864 states to 864 states and 1072 transitions. [2020-10-27 03:42:28,698 INFO L78 Accepts]: Start accepts. Automaton has 864 states and 1072 transitions. Word has length 102 [2020-10-27 03:42:28,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 03:42:28,699 INFO L481 AbstractCegarLoop]: Abstraction has 864 states and 1072 transitions. [2020-10-27 03:42:28,699 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-27 03:42:28,700 INFO L276 IsEmpty]: Start isEmpty. Operand 864 states and 1072 transitions. [2020-10-27 03:42:28,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2020-10-27 03:42:28,703 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 03:42:28,703 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 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, 1, 1, 1, 1, 1] [2020-10-27 03:42:28,703 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-27 03:42:28,704 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 03:42:28,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 03:42:28,704 INFO L82 PathProgramCache]: Analyzing trace with hash 617378019, now seen corresponding path program 1 times [2020-10-27 03:42:28,704 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 03:42:28,705 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1648475907] [2020-10-27 03:42:28,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 03:42:28,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:42:28,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:42:29,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:42:29,026 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 162 [2020-10-27 03:42:29,026 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:42:29,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 290 [2020-10-27 03:42:29,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:42:29,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 03:42:29,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 69 [2020-10-27 03:42:29,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 03:42:29,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:42:29,384 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 03:42:29,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 03:42:29,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:42:29,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:42:29,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:42:29,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:42:29,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:42:29,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-27 03:42:29,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:42:29,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:42:29,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:42:29,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:42:29,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:42:29,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 03:42:29,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:42:29,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:42:29,430 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:42:29,430 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:42:29,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:42:29,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 03:42:29,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:42:29,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:42:29,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:42:29,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:42:29,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:42:29,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 03:42:29,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:42:29,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:42:29,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:42:29,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:42:29,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:42:29,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 03:42:29,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:42:29,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:42:29,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:42:29,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:42:29,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:42:29,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 03:42:29,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:42:29,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:42:29,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:42:29,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:42:29,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:42:29,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:42:29,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:42:29,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:42:29,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:42:29,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:42:29,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:42:29,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 03:42:29,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:42:29,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:42:29,442 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:42:29,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:42:29,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:42:29,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 03:42:29,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:42:29,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:42:29,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:42:29,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:42:29,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:42:29,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-27 03:42:29,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:42:29,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:42:29,480 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:42:29,481 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-10-27 03:42:29,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:42:29,481 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-27 03:42:29,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:42:29,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 03:42:29,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-27 03:42:29,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 03:42:29,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:42:29,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 03:42:29,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:42:29,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:42:29,508 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:42:29,508 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-27 03:42:29,508 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:42:29,508 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 03:42:29,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:42:29,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 03:42:29,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-27 03:42:29,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 03:42:29,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:42:29,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 03:42:29,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:42:29,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:42:29,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:42:29,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-27 03:42:29,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:42:29,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 03:42:29,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:42:29,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 03:42:29,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 03:42:29,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 03:42:29,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:42:29,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 03:42:29,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:42:29,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:42:29,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:42:29,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 03:42:29,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:42:29,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 03:42:29,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:42:29,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 03:42:29,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:42:29,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 03:42:29,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:42:29,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-27 03:42:29,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:42:29,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:42:29,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:42:29,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:42:29,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:42:29,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:42:29,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:42:29,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:42:29,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:42:29,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:42:29,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:42:29,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-27 03:42:29,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:42:29,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:42:29,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:42:29,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-27 03:42:29,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:42:29,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 03:42:29,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:42:29,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:42:29,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-27 03:42:29,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:42:29,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:42:29,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 03:42:29,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:42:29,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:42:29,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:42:29,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:42:29,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:42:29,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:42:29,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:42:29,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:42:29,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:42:29,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:42:29,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:42:29,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-27 03:42:29,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:42:29,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:42:29,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:42:29,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:42:29,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:42:29,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 03:42:29,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:42:29,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:42:29,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:42:29,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:42:29,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:42:29,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-27 03:42:29,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:42:29,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:42:29,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:42:29,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 03:42:29,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:42:29,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:42:29,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:42:29,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:42:29,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 03:42:29,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:42:29,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:42:29,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 03:42:29,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:42:29,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:42:29,630 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:42:29,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:42:29,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:42:29,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 03:42:29,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:42:29,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:42:29,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:42:29,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:42:29,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:42:29,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-27 03:42:29,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:42:29,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:42:29,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:42:29,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:42:29,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:42:29,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 03:42:29,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:42:29,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:42:29,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:42:29,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:42:29,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:42:29,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-27 03:42:29,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:42:29,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:42:29,647 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:42:29,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:42:29,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:42:29,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:42:29,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:42:29,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:42:29,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:42:29,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:42:29,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:42:29,667 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-10-27 03:42:29,668 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1648475907] [2020-10-27 03:42:29,670 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 03:42:29,670 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-27 03:42:29,670 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361523272] [2020-10-27 03:42:29,672 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-27 03:42:29,672 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 03:42:29,672 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-27 03:42:29,673 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-27 03:42:29,673 INFO L87 Difference]: Start difference. First operand 864 states and 1072 transitions. Second operand 9 states. [2020-10-27 03:42:31,042 WARN L193 SmtUtils]: Spent 352.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-27 03:42:31,472 WARN L193 SmtUtils]: Spent 378.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-27 03:42:31,836 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-27 03:42:32,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 03:42:32,736 INFO L93 Difference]: Finished difference Result 1631 states and 2089 transitions. [2020-10-27 03:42:32,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-27 03:42:32,738 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 112 [2020-10-27 03:42:32,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 03:42:32,744 INFO L225 Difference]: With dead ends: 1631 [2020-10-27 03:42:32,745 INFO L226 Difference]: Without dead ends: 791 [2020-10-27 03:42:32,749 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2020-10-27 03:42:32,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 791 states. [2020-10-27 03:42:32,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 791 to 739. [2020-10-27 03:42:32,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 739 states. [2020-10-27 03:42:32,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 739 states to 739 states and 903 transitions. [2020-10-27 03:42:32,916 INFO L78 Accepts]: Start accepts. Automaton has 739 states and 903 transitions. Word has length 112 [2020-10-27 03:42:32,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 03:42:32,917 INFO L481 AbstractCegarLoop]: Abstraction has 739 states and 903 transitions. [2020-10-27 03:42:32,917 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-27 03:42:32,917 INFO L276 IsEmpty]: Start isEmpty. Operand 739 states and 903 transitions. [2020-10-27 03:42:32,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2020-10-27 03:42:32,921 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 03:42:32,921 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 03:42:32,921 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-27 03:42:32,922 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 03:42:32,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 03:42:32,922 INFO L82 PathProgramCache]: Analyzing trace with hash 1053741086, now seen corresponding path program 1 times [2020-10-27 03:42:32,923 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 03:42:32,928 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [970910630] [2020-10-27 03:42:32,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 03:42:32,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:42:32,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:42:33,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:42:35,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:42:35,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 168 [2020-10-27 03:42:35,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:42:35,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2484 [2020-10-27 03:42:35,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:42:35,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-27 03:42:35,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:42:35,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 148 [2020-10-27 03:42:35,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:42:35,970 WARN L193 SmtUtils]: Spent 418.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 03:42:35,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 03:42:35,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:42:36,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:42:36,091 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:42:36,091 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:42:36,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:42:36,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-10-27 03:42:36,092 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:42:36,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:42:36,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:42:36,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 03:42:36,093 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 03:42:36,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 03:42:36,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:42:36,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:42:36,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:42:36,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:42:36,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:42:36,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:42:36,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:42:36,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:42:36,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:42:36,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 03:42:36,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 03:42:36,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 03:42:36,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:42:36,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:42:36,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:42:36,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:42:36,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:42:36,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:42:36,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:42:36,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:42:36,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:42:36,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 03:42:36,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 03:42:36,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 03:42:36,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:42:36,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:42:36,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:42:36,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:42:36,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:42:36,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 03:42:36,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:42:36,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:42:36,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:42:36,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 03:42:36,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:42:36,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 03:42:36,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:42:36,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:42:36,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:42:36,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:42:36,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:42:36,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:42:36,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:42:36,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:42:36,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:42:36,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 03:42:36,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 03:42:36,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-27 03:42:36,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:42:36,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:42:36,226 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:42:36,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:42:36,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:42:36,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 03:42:36,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:42:36,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 03:42:36,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 03:42:36,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 03:42:36,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:42:36,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-27 03:42:36,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:42:36,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:42:36,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:42:36,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-10-27 03:42:36,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:42:36,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-27 03:42:36,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:42:36,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 03:42:36,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 03:42:36,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-27 03:42:36,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:42:36,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 03:42:36,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:42:36,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:42:36,374 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:42:36,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-27 03:42:36,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:42:36,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 03:42:36,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:42:36,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:42:36,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:42:36,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-27 03:42:36,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:42:36,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 03:42:36,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:42:36,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:42:36,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:42:36,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-27 03:42:36,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:42:36,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 03:42:36,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:42:36,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:42:36,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:42:36,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:42:36,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:42:36,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 03:42:36,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:42:36,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:42:36,389 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:42:36,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 03:42:36,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:42:36,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:42:36,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:42:36,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:42:36,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:42:36,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:42:36,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:42:36,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-27 03:42:36,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:42:36,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:42:36,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:42:36,395 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:42:36,395 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:42:36,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:42:36,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:42:36,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:42:36,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:42:36,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:42:36,396 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:42:36,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-27 03:42:36,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:42:36,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:42:36,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:42:36,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-27 03:42:36,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:42:36,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 03:42:36,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:42:36,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:42:36,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:42:36,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-27 03:42:36,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:42:36,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 03:42:36,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:42:36,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:42:36,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:42:36,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:42:36,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:42:36,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:42:36,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:42:36,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:42:36,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:42:36,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:42:36,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:42:36,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-27 03:42:36,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:42:36,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:42:36,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:42:36,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:42:36,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:42:36,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 03:42:36,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:42:36,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 03:42:36,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 03:42:36,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 03:42:36,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:42:36,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-27 03:42:36,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:42:36,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:42:36,469 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:42:36,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 03:42:36,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:42:36,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 03:42:36,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:42:36,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:42:36,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:42:36,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 03:42:36,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:42:36,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 03:42:36,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:42:36,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:42:36,473 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:42:36,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:42:36,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:42:36,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 03:42:36,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:42:36,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:42:36,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:42:36,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:42:36,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:42:36,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-27 03:42:36,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:42:36,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:42:36,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:42:36,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:42:36,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:42:36,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 03:42:36,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:42:36,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 03:42:36,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:42:36,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 03:42:36,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:42:36,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2020-10-27 03:42:36,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:42:36,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:42:36,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:42:36,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:42:36,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:42:36,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:42:36,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:42:36,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:42:36,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:42:36,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:42:36,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:42:36,529 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 6 proven. 8 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-10-27 03:42:36,530 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [970910630] [2020-10-27 03:42:36,530 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 03:42:36,530 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-27 03:42:36,530 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566084962] [2020-10-27 03:42:36,531 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-27 03:42:36,531 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 03:42:36,531 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-27 03:42:36,532 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2020-10-27 03:42:36,532 INFO L87 Difference]: Start difference. First operand 739 states and 903 transitions. Second operand 13 states. [2020-10-27 03:42:37,657 WARN L193 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-27 03:42:38,496 WARN L193 SmtUtils]: Spent 357.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-27 03:42:39,354 WARN L193 SmtUtils]: Spent 373.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-27 03:42:39,844 WARN L193 SmtUtils]: Spent 381.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-27 03:42:40,261 WARN L193 SmtUtils]: Spent 360.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-27 03:42:40,664 WARN L193 SmtUtils]: Spent 367.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-27 03:42:42,901 WARN L193 SmtUtils]: Spent 692.00 ms on a formula simplification. DAG size of input: 211 DAG size of output: 204 [2020-10-27 03:42:43,337 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-27 03:42:45,092 WARN L193 SmtUtils]: Spent 708.00 ms on a formula simplification. DAG size of input: 213 DAG size of output: 206 [2020-10-27 03:42:45,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 03:42:45,505 INFO L93 Difference]: Finished difference Result 2075 states and 2683 transitions. [2020-10-27 03:42:45,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-10-27 03:42:45,506 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 116 [2020-10-27 03:42:45,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 03:42:45,516 INFO L225 Difference]: With dead ends: 2075 [2020-10-27 03:42:45,516 INFO L226 Difference]: Without dead ends: 1509 [2020-10-27 03:42:45,519 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 39 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 162 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=193, Invalid=677, Unknown=0, NotChecked=0, Total=870 [2020-10-27 03:42:45,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1509 states. [2020-10-27 03:42:45,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1509 to 1409. [2020-10-27 03:42:45,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1409 states. [2020-10-27 03:42:45,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1409 states to 1409 states and 1689 transitions. [2020-10-27 03:42:45,807 INFO L78 Accepts]: Start accepts. Automaton has 1409 states and 1689 transitions. Word has length 116 [2020-10-27 03:42:45,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 03:42:45,808 INFO L481 AbstractCegarLoop]: Abstraction has 1409 states and 1689 transitions. [2020-10-27 03:42:45,808 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-27 03:42:45,808 INFO L276 IsEmpty]: Start isEmpty. Operand 1409 states and 1689 transitions. [2020-10-27 03:42:45,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2020-10-27 03:42:45,812 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 03:42:45,813 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, 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 03:42:45,813 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-27 03:42:45,813 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 03:42:45,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 03:42:45,814 INFO L82 PathProgramCache]: Analyzing trace with hash -1923175297, now seen corresponding path program 2 times [2020-10-27 03:42:45,814 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 03:42:45,814 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1509374718] [2020-10-27 03:42:45,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 03:42:45,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-27 03:42:45,856 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-27 03:42:45,856 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-27 03:42:45,861 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-27 03:42:45,889 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 03:42:45 BoogieIcfgContainer [2020-10-27 03:42:45,889 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-27 03:42:45,891 INFO L168 Benchmark]: Toolchain (without parser) took 73782.99 ms. Allocated memory was 151.0 MB in the beginning and 805.3 MB in the end (delta: 654.3 MB). Free memory was 125.8 MB in the beginning and 444.2 MB in the end (delta: -318.3 MB). Peak memory consumption was 336.8 MB. Max. memory is 8.0 GB. [2020-10-27 03:42:45,891 INFO L168 Benchmark]: CDTParser took 0.65 ms. Allocated memory is still 151.0 MB. Free memory was 123.2 MB in the beginning and 123.1 MB in the end (delta: 113.9 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-27 03:42:45,892 INFO L168 Benchmark]: CACSL2BoogieTranslator took 553.47 ms. Allocated memory is still 151.0 MB. Free memory was 125.1 MB in the beginning and 104.9 MB in the end (delta: 20.2 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. [2020-10-27 03:42:45,893 INFO L168 Benchmark]: Boogie Preprocessor took 95.38 ms. Allocated memory is still 151.0 MB. Free memory was 104.7 MB in the beginning and 101.0 MB in the end (delta: 3.7 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-10-27 03:42:45,893 INFO L168 Benchmark]: RCFGBuilder took 1827.35 ms. Allocated memory is still 151.0 MB. Free memory was 100.8 MB in the beginning and 130.4 MB in the end (delta: -29.6 MB). Peak memory consumption was 55.5 MB. Max. memory is 8.0 GB. [2020-10-27 03:42:45,894 INFO L168 Benchmark]: TraceAbstraction took 71291.79 ms. Allocated memory was 151.0 MB in the beginning and 805.3 MB in the end (delta: 654.3 MB). Free memory was 129.9 MB in the beginning and 444.2 MB in the end (delta: -314.3 MB). Peak memory consumption was 340.0 MB. Max. memory is 8.0 GB. [2020-10-27 03:42:45,897 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.65 ms. Allocated memory is still 151.0 MB. Free memory was 123.2 MB in the beginning and 123.1 MB in the end (delta: 113.9 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 553.47 ms. Allocated memory is still 151.0 MB. Free memory was 125.1 MB in the beginning and 104.9 MB in the end (delta: 20.2 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 95.38 ms. Allocated memory is still 151.0 MB. Free memory was 104.7 MB in the beginning and 101.0 MB in the end (delta: 3.7 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1827.35 ms. Allocated memory is still 151.0 MB. Free memory was 100.8 MB in the beginning and 130.4 MB in the end (delta: -29.6 MB). Peak memory consumption was 55.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 71291.79 ms. Allocated memory was 151.0 MB in the beginning and 805.3 MB in the end (delta: 654.3 MB). Free memory was 129.9 MB in the beginning and 444.2 MB in the end (delta: -314.3 MB). Peak memory consumption was 340.0 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: [L125] int pumpRunning = 0; [L126] int systemActive = 1; [L301] int cleanupTimeShifts = 4; [L613] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L811] int waterLevel = 1; [L812] int methaneLevelCritical = 0; [L377] int retValue_acc ; [L378] int tmp ; [L382] FCALL select_helpers() [L383] FCALL select_features() [L384] CALL, EXPR valid_product() [L426] int retValue_acc ; [L429] retValue_acc = 1 [L430] return (retValue_acc); [L384] RET, EXPR valid_product() [L384] tmp = valid_product() [L386] COND TRUE \read(tmp) [L388] FCALL setup() [L389] CALL runTest() [L368] CALL test() [L49] int splverifierCounter ; [L50] int tmp ; [L51] int tmp___0 ; [L52] int tmp___1 ; [L53] int tmp___2 ; [L56] splverifierCounter = 0 [L58] COND TRUE 1 [L60] COND TRUE splverifierCounter < 4 [L66] tmp = __VERIFIER_nondet_int() [L68] COND TRUE \read(tmp) [L70] CALL waterRise() [L829] COND TRUE waterLevel < 2 [L830] waterLevel = waterLevel + 1 [L70] RET waterRise() [L76] tmp___0 = __VERIFIER_nondet_int() [L78] COND FALSE !(\read(tmp___0)) [L86] tmp___2 = __VERIFIER_nondet_int() [L88] COND FALSE !(\read(tmp___2)) [L94] tmp___1 = __VERIFIER_nondet_int() [L96] COND FALSE !(\read(tmp___1)) [L105] CALL timeShift() [L133] COND FALSE !(\read(pumpRunning)) [L140] COND TRUE \read(systemActive) [L142] CALL processEnvironment() [L162] int tmp ; [L165] COND TRUE ! pumpRunning [L167] CALL, EXPR isHighWaterLevel() [L259] int retValue_acc ; [L260] int tmp ; [L261] int tmp___0 ; [L265] CALL, EXPR isHighWaterSensorDry() [L891] int retValue_acc ; [L894] COND FALSE !(waterLevel < 2) [L898] retValue_acc = 0 [L899] return (retValue_acc); [L265] RET, EXPR isHighWaterSensorDry() [L265] tmp = isHighWaterSensorDry() [L267] COND FALSE !(\read(tmp)) [L270] tmp___0 = 1 [L272] retValue_acc = tmp___0 [L273] return (retValue_acc); [L167] RET, EXPR isHighWaterLevel() [L167] tmp = isHighWaterLevel() [L169] COND TRUE \read(tmp) [L171] CALL activatePump() [L190] pumpRunning = 1 [L171] RET activatePump() [L142] RET processEnvironment() [L148] CALL __utac_acc__Specification4_spec__1() [L906] int tmp ; [L907] int tmp___0 ; [L911] CALL, EXPR getWaterLevel() [L882] int retValue_acc ; [L885] retValue_acc = waterLevel [L886] return (retValue_acc); [L911] RET, EXPR getWaterLevel() [L911] tmp = getWaterLevel() [L913] COND FALSE !(tmp == 0) [L148] RET __utac_acc__Specification4_spec__1() [L105] RET timeShift() [L58] COND TRUE 1 [L60] COND TRUE splverifierCounter < 4 [L66] tmp = __VERIFIER_nondet_int() [L68] COND FALSE !(\read(tmp)) [L76] tmp___0 = __VERIFIER_nondet_int() [L78] COND FALSE !(\read(tmp___0)) [L86] tmp___2 = __VERIFIER_nondet_int() [L88] COND FALSE !(\read(tmp___2)) [L94] tmp___1 = __VERIFIER_nondet_int() [L96] COND FALSE !(\read(tmp___1)) [L105] CALL timeShift() [L133] COND TRUE \read(pumpRunning) [L135] CALL lowerWaterLevel() [L817] COND TRUE waterLevel > 0 [L818] waterLevel = waterLevel - 1 [L135] RET lowerWaterLevel() [L140] COND TRUE \read(systemActive) [L142] CALL processEnvironment() [L162] int tmp ; [L165] COND FALSE !(! pumpRunning) [L180] FCALL processEnvironment__wrappee__base() [L142] RET processEnvironment() [L148] CALL __utac_acc__Specification4_spec__1() [L906] int tmp ; [L907] int tmp___0 ; [L911] CALL, EXPR getWaterLevel() [L882] int retValue_acc ; [L885] retValue_acc = waterLevel [L886] return (retValue_acc); [L911] RET, EXPR getWaterLevel() [L911] tmp = getWaterLevel() [L913] COND FALSE !(tmp == 0) [L148] RET __utac_acc__Specification4_spec__1() [L105] RET timeShift() [L58] COND TRUE 1 [L60] COND TRUE splverifierCounter < 4 [L66] tmp = __VERIFIER_nondet_int() [L68] COND FALSE !(\read(tmp)) [L76] tmp___0 = __VERIFIER_nondet_int() [L78] COND FALSE !(\read(tmp___0)) [L86] tmp___2 = __VERIFIER_nondet_int() [L88] COND FALSE !(\read(tmp___2)) [L94] tmp___1 = __VERIFIER_nondet_int() [L96] COND FALSE !(\read(tmp___1)) [L105] CALL timeShift() [L133] COND TRUE \read(pumpRunning) [L135] CALL lowerWaterLevel() [L817] COND TRUE waterLevel > 0 [L818] waterLevel = waterLevel - 1 [L135] RET lowerWaterLevel() [L140] COND TRUE \read(systemActive) [L142] CALL processEnvironment() [L162] int tmp ; [L165] COND FALSE !(! pumpRunning) [L180] FCALL processEnvironment__wrappee__base() [L142] RET processEnvironment() [L148] CALL __utac_acc__Specification4_spec__1() [L906] int tmp ; [L907] int tmp___0 ; [L911] CALL, EXPR getWaterLevel() [L882] int retValue_acc ; [L885] retValue_acc = waterLevel [L886] return (retValue_acc); [L911] RET, EXPR getWaterLevel() [L911] tmp = getWaterLevel() [L913] COND TRUE tmp == 0 [L915] CALL, EXPR isPumpRunning() [L214] int retValue_acc ; [L217] retValue_acc = pumpRunning [L218] return (retValue_acc); [L915] RET, EXPR isPumpRunning() [L915] tmp___0 = isPumpRunning() [L917] COND TRUE \read(tmp___0) [L919] CALL __automaton_fail() [L439] CALL reach_error() [L3] __assert_fail("0", "minepump_spec4_product36.cil.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 40 procedures, 237 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 71.1s, OverallIterations: 8, TraceHistogramMax: 3, AutomataDifference: 40.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 915 SDtfs, 2444 SDslu, 1640 SDs, 0 SdLazy, 6710 SolverSat, 1749 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 20.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 334 GetRequests, 216 SyntacticMatches, 1 SemanticMatches, 117 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 394 ImplicationChecksByTransitivity, 18.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1409occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.3s AutomataMinimizationTime, 7 MinimizatonAttempts, 821 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 28.5s InterpolantComputationTime, 779 NumberOfCodeBlocks, 779 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 620 ConstructedInterpolants, 0 QuantifiedInterpolants, 230948 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 3 PerfectInterpolantSequences, 62/75 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...