/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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 --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_spec3_product28.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-28 16:54:42,165 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-28 16:54:42,168 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-28 16:54:42,223 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-28 16:54:42,224 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-28 16:54:42,232 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-28 16:54:42,235 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-28 16:54:42,240 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-28 16:54:42,243 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-28 16:54:42,249 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-28 16:54:42,250 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-28 16:54:42,252 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-28 16:54:42,252 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-28 16:54:42,256 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-28 16:54:42,258 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-28 16:54:42,260 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-28 16:54:42,261 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-28 16:54:42,264 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-28 16:54:42,282 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-28 16:54:42,288 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-28 16:54:42,290 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-28 16:54:42,292 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-28 16:54:42,293 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-28 16:54:42,296 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-28 16:54:42,306 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-28 16:54:42,307 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-28 16:54:42,307 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-28 16:54:42,309 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-28 16:54:42,310 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-28 16:54:42,311 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-28 16:54:42,311 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-28 16:54:42,312 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-28 16:54:42,314 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-28 16:54:42,314 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-28 16:54:42,315 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-28 16:54:42,315 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-28 16:54:42,316 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-28 16:54:42,316 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-28 16:54:42,317 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-28 16:54:42,317 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-28 16:54:42,318 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-28 16:54:42,325 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 [2020-10-28 16:54:42,377 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-28 16:54:42,378 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-28 16:54:42,381 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-28 16:54:42,381 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-28 16:54:42,382 INFO L138 SettingsManager]: * Use SBE=true [2020-10-28 16:54:42,382 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-28 16:54:42,382 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-28 16:54:42,382 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-28 16:54:42,382 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-28 16:54:42,383 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-28 16:54:42,384 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-28 16:54:42,384 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-28 16:54:42,384 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-28 16:54:42,384 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-28 16:54:42,384 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-28 16:54:42,385 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-28 16:54:42,385 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-28 16:54:42,385 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-28 16:54:42,385 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-28 16:54:42,385 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-28 16:54:42,386 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-28 16:54:42,386 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 16:54:42,386 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-28 16:54:42,386 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-28 16:54:42,386 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-28 16:54:42,387 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-28 16:54:42,387 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-28 16:54:42,387 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-28 16:54:42,387 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-28 16:54:42,387 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true;unknown-allowed=true; [2020-10-28 16:54:42,825 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-28 16:54:42,849 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-28 16:54:42,852 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-28 16:54:42,854 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-28 16:54:42,855 INFO L275 PluginConnector]: CDTParser initialized [2020-10-28 16:54:42,856 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product28.cil.c [2020-10-28 16:54:42,931 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7a85662f6/7d088ec24ea5463e80e6d265c4a134a8/FLAG23aeb884d [2020-10-28 16:54:43,552 INFO L306 CDTParser]: Found 1 translation units. [2020-10-28 16:54:43,552 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product28.cil.c [2020-10-28 16:54:43,575 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7a85662f6/7d088ec24ea5463e80e6d265c4a134a8/FLAG23aeb884d [2020-10-28 16:54:43,868 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7a85662f6/7d088ec24ea5463e80e6d265c4a134a8 [2020-10-28 16:54:43,870 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-28 16:54:43,878 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-28 16:54:43,884 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-28 16:54:43,884 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-28 16:54:43,889 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-28 16:54:43,890 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 04:54:43" (1/1) ... [2020-10-28 16:54:43,893 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13743b17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:54:43, skipping insertion in model container [2020-10-28 16:54:43,893 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 04:54:43" (1/1) ... [2020-10-28 16:54:43,902 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-28 16:54:43,975 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-28 16:54:44,427 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 16:54:44,452 INFO L203 MainTranslator]: Completed pre-run [2020-10-28 16:54:44,620 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 16:54:44,659 INFO L208 MainTranslator]: Completed translation [2020-10-28 16:54:44,660 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:54:44 WrapperNode [2020-10-28 16:54:44,660 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-28 16:54:44,661 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-28 16:54:44,661 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-28 16:54:44,662 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-28 16:54:44,675 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:54:44" (1/1) ... [2020-10-28 16:54:44,676 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:54:44" (1/1) ... [2020-10-28 16:54:44,695 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:54:44" (1/1) ... [2020-10-28 16:54:44,695 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:54:44" (1/1) ... [2020-10-28 16:54:44,726 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:54:44" (1/1) ... [2020-10-28 16:54:44,736 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:54:44" (1/1) ... [2020-10-28 16:54:44,742 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:54:44" (1/1) ... [2020-10-28 16:54:44,758 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-28 16:54:44,759 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-28 16:54:44,760 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-28 16:54:44,760 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-28 16:54:44,763 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:54:44" (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 [2020-10-28 16:54:44,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-28 16:54:44,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-28 16:54:44,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-28 16:54:44,879 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-28 16:54:44,879 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-28 16:54:44,880 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-28 16:54:44,880 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-28 16:54:44,880 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-28 16:54:44,881 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-28 16:54:44,881 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-10-28 16:54:44,882 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-28 16:54:44,882 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-10-28 16:54:44,882 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-28 16:54:44,883 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-28 16:54:44,883 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-28 16:54:44,884 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-28 16:54:44,884 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-28 16:54:44,884 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-10-28 16:54:44,884 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-10-28 16:54:44,884 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-10-28 16:54:44,885 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-28 16:54:44,885 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-28 16:54:44,885 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-28 16:54:44,885 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-28 16:54:44,885 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-28 16:54:44,885 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-28 16:54:44,886 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-28 16:54:44,886 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-10-28 16:54:44,886 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-28 16:54:44,886 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-28 16:54:44,886 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-28 16:54:44,886 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-28 16:54:44,887 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-28 16:54:44,887 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-28 16:54:44,887 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-10-28 16:54:44,888 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-28 16:54:44,888 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-28 16:54:44,888 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-28 16:54:44,888 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-28 16:54:44,888 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-28 16:54:44,888 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-28 16:54:44,889 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-28 16:54:44,889 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-28 16:54:44,889 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-28 16:54:44,889 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-28 16:54:44,890 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-28 16:54:44,890 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-28 16:54:44,891 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-28 16:54:44,891 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-28 16:54:44,891 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-28 16:54:44,891 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-28 16:54:44,891 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-28 16:54:44,892 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-28 16:54:44,893 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-28 16:54:44,893 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-10-28 16:54:44,893 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-28 16:54:44,893 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-28 16:54:44,894 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-28 16:54:44,894 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-28 16:54:44,894 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-28 16:54:44,894 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-10-28 16:54:44,895 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-10-28 16:54:44,895 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-10-28 16:54:44,895 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-28 16:54:44,895 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-10-28 16:54:44,895 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-10-28 16:54:44,895 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-10-28 16:54:44,896 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-28 16:54:44,896 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-28 16:54:44,896 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-28 16:54:44,897 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-28 16:54:44,897 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-28 16:54:44,899 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-28 16:54:44,899 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-28 16:54:44,899 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-28 16:54:44,900 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-28 16:54:44,900 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-28 16:54:44,900 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-28 16:54:44,900 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-28 16:54:44,900 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-28 16:54:44,901 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-28 16:54:44,901 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-28 16:54:44,901 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-28 16:54:44,901 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-28 16:54:44,901 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-28 16:54:44,902 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-28 16:54:44,902 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-28 16:54:44,902 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-28 16:54:44,902 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-28 16:54:44,902 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-28 16:54:44,902 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-28 16:54:44,903 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-28 16:54:44,903 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-28 16:54:44,903 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-28 16:54:44,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-28 16:54:44,903 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-28 16:54:46,350 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-28 16:54:46,350 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-28 16:54:46,353 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 04:54:46 BoogieIcfgContainer [2020-10-28 16:54:46,353 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-28 16:54:46,355 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-28 16:54:46,355 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-28 16:54:46,359 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-28 16:54:46,359 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 04:54:43" (1/3) ... [2020-10-28 16:54:46,360 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2332e208 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 04:54:46, skipping insertion in model container [2020-10-28 16:54:46,360 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:54:44" (2/3) ... [2020-10-28 16:54:46,360 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2332e208 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 04:54:46, skipping insertion in model container [2020-10-28 16:54:46,361 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 04:54:46" (3/3) ... [2020-10-28 16:54:46,362 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product28.cil.c [2020-10-28 16:54:46,374 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-28 16:54:46,380 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-28 16:54:46,393 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-28 16:54:46,422 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-28 16:54:46,422 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-28 16:54:46,423 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-28 16:54:46,423 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-28 16:54:46,423 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-28 16:54:46,423 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-28 16:54:46,423 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-28 16:54:46,424 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-28 16:54:46,446 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states. [2020-10-28 16:54:46,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-10-28 16:54:46,457 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 16:54:46,458 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] [2020-10-28 16:54:46,459 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]=== [2020-10-28 16:54:46,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 16:54:46,465 INFO L82 PathProgramCache]: Analyzing trace with hash -701390446, now seen corresponding path program 1 times [2020-10-28 16:54:46,475 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 16:54:46,475 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [945148880] [2020-10-28 16:54:46,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 16:54:46,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:54:46,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:47,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:47,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:50,188 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:54:50,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-28 16:54:50,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 16:54:50,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3389 [2020-10-28 16:54:50,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:54:50,197 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:54:50,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:54:50,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-10-28 16:54:50,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:54:50,205 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 14 [2020-10-28 16:54:50,756 WARN L193 SmtUtils]: Spent 462.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-28 16:54:50,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 16:54:50,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:54:50,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:50,811 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:54:50,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:54:50,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:54:50,811 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-28 16:54:50,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:54:50,812 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:54:50,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:54:50,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:54:50,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:54:50,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:54:50,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 16:54:50,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:54:50,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:50,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:54:50,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:54:50,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:54:50,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:54:50,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:54:50,845 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:54:50,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:54:50,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:54:50,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:54:50,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:54:50,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-28 16:54:50,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:54:50,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:50,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:54:50,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:54:50,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:54:50,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:54:50,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:54:50,853 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:54:50,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:54:50,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:54:50,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:54:50,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:54:50,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 16:54:50,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:54:50,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:50,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:54:50,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:54:50,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:54:50,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 16:54:50,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:54:50,860 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:54:50,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:54:50,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:54:50,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:54:50,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:54:50,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-28 16:54:50,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:54:50,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:50,866 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:54:50,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:54:50,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:54:50,866 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:54:50,866 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:54:50,867 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:54:50,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:54:50,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:54:50,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:54:50,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:54:50,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-28 16:54:50,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:54:50,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:50,873 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:54:50,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:54:50,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:54:50,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 16:54:50,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:54:50,874 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:54:50,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:54:50,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:54:50,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:54:50,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:54:50,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-28 16:54:50,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:54:50,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:50,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:54:50,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:54:50,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:54:50,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 16:54:50,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:54:50,882 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:54:50,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:54:50,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:54:50,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:54:50,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:54:50,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-28 16:54:50,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:54:50,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:50,888 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:54:50,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:54:50,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:54:50,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 16:54:50,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:54:50,889 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:54:50,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:54:50,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:54:50,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:54:50,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:54:50,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 16:54:50,906 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [945148880] [2020-10-28 16:54:50,908 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 16:54:50,909 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-28 16:54:50,910 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815308559] [2020-10-28 16:54:50,915 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-28 16:54:50,915 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 16:54:50,929 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-28 16:54:50,930 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-28 16:54:50,933 INFO L87 Difference]: Start difference. First operand 178 states. Second operand 3 states. [2020-10-28 16:54:52,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 16:54:52,503 INFO L93 Difference]: Finished difference Result 287 states and 376 transitions. [2020-10-28 16:54:52,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-28 16:54:52,505 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 53 [2020-10-28 16:54:52,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 16:54:52,520 INFO L225 Difference]: With dead ends: 287 [2020-10-28 16:54:52,520 INFO L226 Difference]: Without dead ends: 154 [2020-10-28 16:54:52,525 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-28 16:54:52,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2020-10-28 16:54:52,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 121. [2020-10-28 16:54:52,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 121 states. [2020-10-28 16:54:52,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 141 transitions. [2020-10-28 16:54:52,644 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 141 transitions. Word has length 53 [2020-10-28 16:54:52,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 16:54:52,645 INFO L481 AbstractCegarLoop]: Abstraction has 121 states and 141 transitions. [2020-10-28 16:54:52,645 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-28 16:54:52,645 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 141 transitions. [2020-10-28 16:54:52,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-10-28 16:54:52,649 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 16:54:52,649 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] [2020-10-28 16:54:52,649 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-28 16:54:52,649 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]=== [2020-10-28 16:54:52,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 16:54:52,650 INFO L82 PathProgramCache]: Analyzing trace with hash -1737863363, now seen corresponding path program 1 times [2020-10-28 16:54:52,650 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 16:54:52,651 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1453741970] [2020-10-28 16:54:52,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 16:54:52,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:54:52,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:52,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:52,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:56,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:54:56,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-28 16:54:56,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 16:54:56,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3498 [2020-10-28 16:54:56,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:54:56,189 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:54:56,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:54:56,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-10-28 16:54:56,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-28 16:54:56,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:54:56,697 WARN L193 SmtUtils]: Spent 443.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-28 16:54:56,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 16:54:56,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:54:56,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:56,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:54:56,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:54:56,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:54:56,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-28 16:54:56,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:54:56,748 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:54:56,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:54:56,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:54:56,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:54:56,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:54:56,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 16:54:56,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:54:56,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:56,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:54:56,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:54:56,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:54:56,767 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:54:56,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:54:56,767 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:54:56,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:54:56,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:54:56,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:54:56,768 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:54:56,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-28 16:54:56,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:54:56,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:56,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:54:56,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:54:56,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:54:56,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:54:56,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:54:56,772 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:54:56,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:54:56,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:54:56,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:54:56,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:54:56,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 16:54:56,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:54:56,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:56,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:54:56,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:54:56,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:54:56,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:54:56,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:54:56,777 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:54:56,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:54:56,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:54:56,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:54:56,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:54:56,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-28 16:54:56,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:54:56,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:56,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:54:56,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:54:56,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:54:56,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:54:56,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:54:56,783 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:54:56,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:54:56,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:54:56,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:54:56,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:54:56,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-28 16:54:56,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:54:56,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:56,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:54:56,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:54:56,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:54:56,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:54:56,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:54:56,789 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:54:56,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:54:56,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:54:56,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:54:56,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:54:56,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-28 16:54:56,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:54:56,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:56,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:54:56,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:54:56,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:54:56,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:54:56,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:54:56,794 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:54:56,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:54:56,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:54:56,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:54:56,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:54:56,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-28 16:54:56,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:54:56,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:56,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:54:56,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:54:56,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:54:56,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:54:56,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:54:56,800 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:54:56,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:54:56,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:54:56,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:54:56,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:54:56,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 16:54:56,810 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1453741970] [2020-10-28 16:54:56,811 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 16:54:56,811 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-28 16:54:56,811 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608216428] [2020-10-28 16:54:56,813 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-28 16:54:56,813 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 16:54:56,814 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-28 16:54:56,814 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-28 16:54:56,814 INFO L87 Difference]: Start difference. First operand 121 states and 141 transitions. Second operand 4 states. [2020-10-28 16:54:57,511 WARN L193 SmtUtils]: Spent 412.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-28 16:54:58,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 16:54:58,670 INFO L93 Difference]: Finished difference Result 207 states and 251 transitions. [2020-10-28 16:54:58,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 16:54:58,671 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 54 [2020-10-28 16:54:58,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 16:54:58,674 INFO L225 Difference]: With dead ends: 207 [2020-10-28 16:54:58,675 INFO L226 Difference]: Without dead ends: 138 [2020-10-28 16:54:58,679 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-28 16:54:58,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2020-10-28 16:54:58,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 112. [2020-10-28 16:54:58,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2020-10-28 16:54:58,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 129 transitions. [2020-10-28 16:54:58,759 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 129 transitions. Word has length 54 [2020-10-28 16:54:58,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 16:54:58,760 INFO L481 AbstractCegarLoop]: Abstraction has 112 states and 129 transitions. [2020-10-28 16:54:58,760 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-28 16:54:58,760 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 129 transitions. [2020-10-28 16:54:58,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-10-28 16:54:58,770 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 16:54:58,771 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] [2020-10-28 16:54:58,771 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-28 16:54:58,771 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]=== [2020-10-28 16:54:58,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 16:54:58,772 INFO L82 PathProgramCache]: Analyzing trace with hash -1617164223, now seen corresponding path program 1 times [2020-10-28 16:54:58,772 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 16:54:58,772 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1158800730] [2020-10-28 16:54:58,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 16:54:58,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:54:58,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:59,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:55:00,225 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:55:00,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-28 16:55:00,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 16:55:00,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1414 [2020-10-28 16:55:00,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:55:00,227 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:55:00,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-28 16:55:00,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:55:00,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-10-28 16:55:00,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:55:00,664 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-28 16:55:00,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 16:55:00,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:55:00,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:55:00,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:55:00,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:55:00,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:55:00,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-10-28 16:55:00,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:55:00,786 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:55:00,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:55:00,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:55:00,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 16:55:00,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:55:00,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 16:55:00,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:55:00,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:55:00,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:55:00,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:55:00,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:55:00,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 16:55:00,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:55:00,813 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:55:00,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:55:00,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:55:00,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 16:55:00,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:55:00,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-28 16:55:00,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:55:00,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:55:00,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:55:00,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:55:00,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:55:00,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:55:00,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:55:00,818 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:55:00,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:55:00,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:55:00,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 16:55:00,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:55:00,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 16:55:00,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:55:00,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:55:00,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:55:00,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:55:00,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:55:00,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 16:55:00,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:55:00,826 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:55:00,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:55:00,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:55:00,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 16:55:00,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:55:00,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-28 16:55:00,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:55:00,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:55:00,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:55:00,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:55:00,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:55:00,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:55:00,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:55:00,832 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:55:00,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:55:00,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:55:00,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 16:55:00,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 21 [2020-10-28 16:55:00,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-28 16:55:00,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:55:00,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:55:00,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:55:00,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:55:00,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:55:00,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:55:00,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:55:00,864 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:55:00,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:55:00,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:55:00,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:55:00,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:55:00,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-28 16:55:00,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:55:00,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:55:00,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:55:00,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:55:00,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:55:00,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:55:00,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:55:00,871 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:55:00,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:55:00,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:55:00,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:55:00,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:55:00,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-28 16:55:00,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:55:00,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:55:00,876 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:55:00,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:55:00,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:55:00,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:55:00,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:55:00,878 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:55:00,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:55:00,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:55:00,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:55:00,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:55:00,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 16:55:00,894 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1158800730] [2020-10-28 16:55:00,894 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 16:55:00,894 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-28 16:55:00,894 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258707946] [2020-10-28 16:55:00,896 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 16:55:00,897 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 16:55:00,898 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 16:55:00,898 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-28 16:55:00,898 INFO L87 Difference]: Start difference. First operand 112 states and 129 transitions. Second operand 5 states. [2020-10-28 16:55:01,354 WARN L193 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-28 16:55:03,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 16:55:03,268 INFO L93 Difference]: Finished difference Result 324 states and 397 transitions. [2020-10-28 16:55:03,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 16:55:03,269 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 59 [2020-10-28 16:55:03,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 16:55:03,272 INFO L225 Difference]: With dead ends: 324 [2020-10-28 16:55:03,273 INFO L226 Difference]: Without dead ends: 236 [2020-10-28 16:55:03,274 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 17 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-28 16:55:03,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2020-10-28 16:55:03,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 189. [2020-10-28 16:55:03,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 189 states. [2020-10-28 16:55:03,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 224 transitions. [2020-10-28 16:55:03,357 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 224 transitions. Word has length 59 [2020-10-28 16:55:03,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 16:55:03,357 INFO L481 AbstractCegarLoop]: Abstraction has 189 states and 224 transitions. [2020-10-28 16:55:03,357 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 16:55:03,357 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 224 transitions. [2020-10-28 16:55:03,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-10-28 16:55:03,359 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 16:55:03,359 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] [2020-10-28 16:55:03,359 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-28 16:55:03,360 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]=== [2020-10-28 16:55:03,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 16:55:03,360 INFO L82 PathProgramCache]: Analyzing trace with hash -996099245, now seen corresponding path program 1 times [2020-10-28 16:55:03,360 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 16:55:03,361 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [148643422] [2020-10-28 16:55:03,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 16:55:03,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:55:03,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:55:04,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:55:04,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-28 16:55:04,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:55:04,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 977 [2020-10-28 16:55:04,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:55:04,371 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:55:04,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-28 16:55:04,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:55:04,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-28 16:55:04,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:55:04,831 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-28 16:55:04,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 16:55:04,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:55:04,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:55:04,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:55:04,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:55:04,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:55:04,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-10-28 16:55:04,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:55:04,963 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:55:04,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:55:04,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:55:04,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 16:55:04,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:55:04,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 16:55:04,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:55:05,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:55:05,002 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:55:05,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:55:05,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:55:05,002 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 16:55:05,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:55:05,003 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:55:05,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:55:05,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:55:05,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 16:55:05,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:55:05,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-28 16:55:05,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:55:05,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:55:05,009 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:55:05,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:55:05,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:55:05,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 16:55:05,010 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:55:05,010 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:55:05,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:55:05,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:55:05,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 16:55:05,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:55:05,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 16:55:05,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:55:05,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:55:05,017 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:55:05,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:55:05,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:55:05,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 16:55:05,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:55:05,019 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:55:05,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:55:05,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:55:05,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 16:55:05,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:55:05,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-28 16:55:05,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:55:05,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:55:05,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:55:05,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:55:05,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:55:05,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 16:55:05,025 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:55:05,026 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:55:05,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:55:05,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:55:05,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 16:55:05,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:55:05,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-28 16:55:05,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:55:05,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:55:05,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:55:05,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 16:55:05,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:55:05,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 16:55:05,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:55:05,050 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:55:05,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:55:05,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:55:05,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 16:55:05,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:55:05,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-28 16:55:05,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:55:05,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:55:05,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:55:05,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:55:05,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:55:05,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 16:55:05,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:55:05,057 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:55:05,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:55:05,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:55:05,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 16:55:05,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:55:05,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-28 16:55:05,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:55:05,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:55:05,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:55:05,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:55:05,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:55:05,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 16:55:05,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:55:05,068 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:55:05,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 16:55:05,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:55:05,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 16:55:05,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:55:05,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-28 16:55:05,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:55:05,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:55:05,091 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:55:05,091 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:55:05,091 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:55:05,091 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 16:55:05,092 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:55:05,092 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:55:05,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:55:05,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:55:05,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:55:05,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:55:05,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 16:55:05,109 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [148643422] [2020-10-28 16:55:05,109 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 16:55:05,110 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-28 16:55:05,110 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351316963] [2020-10-28 16:55:05,110 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-28 16:55:05,111 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 16:55:05,112 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-28 16:55:05,113 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-10-28 16:55:05,113 INFO L87 Difference]: Start difference. First operand 189 states and 224 transitions. Second operand 9 states. [2020-10-28 16:55:05,734 WARN L193 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-28 16:55:07,624 WARN L193 SmtUtils]: Spent 374.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-28 16:55:08,109 WARN L193 SmtUtils]: Spent 374.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-28 16:55:08,570 WARN L193 SmtUtils]: Spent 390.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-28 16:55:08,980 WARN L193 SmtUtils]: Spent 364.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-28 16:55:09,531 WARN L193 SmtUtils]: Spent 360.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-28 16:55:10,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 16:55:10,524 INFO L93 Difference]: Finished difference Result 599 states and 790 transitions. [2020-10-28 16:55:10,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-28 16:55:10,532 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 64 [2020-10-28 16:55:10,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 16:55:10,544 INFO L225 Difference]: With dead ends: 599 [2020-10-28 16:55:10,544 INFO L226 Difference]: Without dead ends: 434 [2020-10-28 16:55:10,549 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2020-10-28 16:55:10,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2020-10-28 16:55:10,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 356. [2020-10-28 16:55:10,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 356 states. [2020-10-28 16:55:10,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 434 transitions. [2020-10-28 16:55:10,706 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 434 transitions. Word has length 64 [2020-10-28 16:55:10,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 16:55:10,707 INFO L481 AbstractCegarLoop]: Abstraction has 356 states and 434 transitions. [2020-10-28 16:55:10,707 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-28 16:55:10,707 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 434 transitions. [2020-10-28 16:55:10,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-10-28 16:55:10,709 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 16:55:10,710 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] [2020-10-28 16:55:10,710 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-28 16:55:10,710 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]=== [2020-10-28 16:55:10,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 16:55:10,711 INFO L82 PathProgramCache]: Analyzing trace with hash 324086733, now seen corresponding path program 1 times [2020-10-28 16:55:10,711 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 16:55:10,711 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1958074564] [2020-10-28 16:55:10,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 16:55:10,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-28 16:55:10,755 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-28 16:55:10,755 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-28 16:55:10,760 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-28 16:55:10,782 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 04:55:10 BoogieIcfgContainer [2020-10-28 16:55:10,782 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-28 16:55:10,784 INFO L168 Benchmark]: Toolchain (without parser) took 26911.50 ms. Allocated memory was 152.0 MB in the beginning and 471.9 MB in the end (delta: 319.8 MB). Free memory was 126.8 MB in the beginning and 400.2 MB in the end (delta: -273.4 MB). Peak memory consumption was 47.1 MB. Max. memory is 8.0 GB. [2020-10-28 16:55:10,785 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 152.0 MB. Free memory is still 123.8 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-28 16:55:10,786 INFO L168 Benchmark]: CACSL2BoogieTranslator took 776.82 ms. Allocated memory is still 152.0 MB. Free memory was 126.3 MB in the beginning and 104.7 MB in the end (delta: 21.6 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. [2020-10-28 16:55:10,787 INFO L168 Benchmark]: Boogie Preprocessor took 97.26 ms. Allocated memory is still 152.0 MB. Free memory was 104.7 MB in the beginning and 100.8 MB in the end (delta: 3.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-10-28 16:55:10,788 INFO L168 Benchmark]: RCFGBuilder took 1593.65 ms. Allocated memory was 152.0 MB in the beginning and 184.5 MB in the end (delta: 32.5 MB). Free memory was 100.8 MB in the beginning and 164.5 MB in the end (delta: -63.7 MB). Peak memory consumption was 54.7 MB. Max. memory is 8.0 GB. [2020-10-28 16:55:10,789 INFO L168 Benchmark]: TraceAbstraction took 24427.60 ms. Allocated memory was 184.5 MB in the beginning and 471.9 MB in the end (delta: 287.3 MB). Free memory was 164.1 MB in the beginning and 400.2 MB in the end (delta: -236.1 MB). Peak memory consumption was 51.2 MB. Max. memory is 8.0 GB. [2020-10-28 16:55:10,792 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 152.0 MB. Free memory is still 123.8 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 776.82 ms. Allocated memory is still 152.0 MB. Free memory was 126.3 MB in the beginning and 104.7 MB in the end (delta: 21.6 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 97.26 ms. Allocated memory is still 152.0 MB. Free memory was 104.7 MB in the beginning and 100.8 MB in the end (delta: 3.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1593.65 ms. Allocated memory was 152.0 MB in the beginning and 184.5 MB in the end (delta: 32.5 MB). Free memory was 100.8 MB in the beginning and 164.5 MB in the end (delta: -63.7 MB). Peak memory consumption was 54.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 24427.60 ms. Allocated memory was 184.5 MB in the beginning and 471.9 MB in the end (delta: 287.3 MB). Free memory was 164.1 MB in the beginning and 400.2 MB in the end (delta: -236.1 MB). Peak memory consumption was 51.2 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: [L91] int pumpRunning = 0; [L92] int systemActive = 1; [L358] int waterLevel = 1; [L359] int methaneLevelCritical = 0; [L447] int cleanupTimeShifts = 4; [L755] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L520] int retValue_acc ; [L521] int tmp ; [L525] FCALL select_helpers() [L526] FCALL select_features() [L527] CALL, EXPR valid_product() [L71] int retValue_acc ; [L74] retValue_acc = 1 [L75] return (retValue_acc); [L527] RET, EXPR valid_product() [L527] tmp = valid_product() [L529] COND TRUE \read(tmp) [L531] FCALL setup() [L532] CALL runTest() [L514] CALL test() [L289] int splverifierCounter ; [L290] int tmp ; [L291] int tmp___0 ; [L292] int tmp___1 ; [L293] int tmp___2 ; [L296] splverifierCounter = 0 [L298] COND TRUE 1 [L300] COND TRUE splverifierCounter < 4 [L306] tmp = __VERIFIER_nondet_int() [L308] COND TRUE \read(tmp) [L310] CALL waterRise() [L376] COND TRUE waterLevel < 2 [L377] waterLevel = waterLevel + 1 [L310] RET waterRise() [L316] tmp___0 = __VERIFIER_nondet_int() [L318] COND FALSE !(\read(tmp___0)) [L326] tmp___2 = __VERIFIER_nondet_int() [L328] COND FALSE !(\read(tmp___2)) [L334] tmp___1 = __VERIFIER_nondet_int() [L336] COND TRUE \read(tmp___1) [L338] CALL stopSystem() [L265] COND FALSE !(\read(pumpRunning)) [L272] systemActive = 0 [L338] RET stopSystem() [L345] CALL timeShift() [L99] COND FALSE !(\read(pumpRunning)) [L106] COND FALSE !(\read(systemActive)) [L114] CALL __utac_acc__Specification3_spec__1() [L553] int tmp ; [L554] int tmp___0 ; [L555] int tmp___1 ; [L559] CALL, EXPR isMethaneLevelCritical() [L397] int retValue_acc ; [L400] retValue_acc = methaneLevelCritical [L401] return (retValue_acc); [L559] RET, EXPR isMethaneLevelCritical() [L559] tmp = isMethaneLevelCritical() [L561] COND FALSE !(\read(tmp)) [L565] CALL, EXPR getWaterLevel() [L429] int retValue_acc ; [L432] retValue_acc = waterLevel [L433] return (retValue_acc); [L565] RET, EXPR getWaterLevel() [L565] tmp___0 = getWaterLevel() [L567] COND TRUE tmp___0 == 2 [L569] CALL, EXPR isPumpRunning() [L198] int retValue_acc ; [L201] retValue_acc = pumpRunning [L202] return (retValue_acc); [L569] RET, EXPR isPumpRunning() [L569] tmp___1 = isPumpRunning() [L571] COND FALSE !(\read(tmp___1)) [L575] CALL __automaton_fail() [L547] CALL reach_error() [L3] __assert_fail("0", "minepump_spec3_product28.cil.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 41 procedures, 246 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 24.3s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 11.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 459 SDtfs, 678 SDslu, 283 SDs, 0 SdLazy, 1273 SolverSat, 424 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 95 GetRequests, 71 SyntacticMatches, 2 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 4.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=356occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 4 MinimizatonAttempts, 184 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 11.9s InterpolantComputationTime, 298 NumberOfCodeBlocks, 298 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 226 ConstructedInterpolants, 0 QuantifiedInterpolants, 68692 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 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...