/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.3 --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_spec1_product38.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-29 11:25:02,185 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-29 11:25:02,187 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-29 11:25:02,237 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-29 11:25:02,238 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-29 11:25:02,245 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-29 11:25:02,247 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-29 11:25:02,251 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-29 11:25:02,255 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-29 11:25:02,261 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-29 11:25:02,262 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-29 11:25:02,263 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-29 11:25:02,264 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-29 11:25:02,267 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-29 11:25:02,270 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-29 11:25:02,273 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-29 11:25:02,274 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-29 11:25:02,277 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-29 11:25:02,283 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-29 11:25:02,292 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-29 11:25:02,294 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-29 11:25:02,296 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-29 11:25:02,297 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-29 11:25:02,300 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-29 11:25:02,326 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-29 11:25:02,327 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-29 11:25:02,328 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-29 11:25:02,330 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-29 11:25:02,331 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-29 11:25:02,332 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-29 11:25:02,332 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-29 11:25:02,333 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-29 11:25:02,335 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-29 11:25:02,336 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-29 11:25:02,337 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-29 11:25:02,337 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-29 11:25:02,338 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-29 11:25:02,338 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-29 11:25:02,339 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-29 11:25:02,340 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-29 11:25:02,340 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-29 11:25:02,348 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 [2020-10-29 11:25:02,402 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-29 11:25:02,402 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-29 11:25:02,406 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-29 11:25:02,406 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-29 11:25:02,407 INFO L138 SettingsManager]: * Use SBE=true [2020-10-29 11:25:02,407 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-29 11:25:02,407 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-29 11:25:02,407 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-29 11:25:02,408 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-29 11:25:02,408 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-29 11:25:02,409 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-29 11:25:02,410 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-29 11:25:02,410 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-29 11:25:02,410 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-29 11:25:02,410 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-29 11:25:02,410 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-29 11:25:02,411 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-29 11:25:02,411 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-29 11:25:02,411 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-29 11:25:02,411 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-29 11:25:02,412 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-29 11:25:02,412 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 11:25:02,412 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-29 11:25:02,412 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-29 11:25:02,412 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-29 11:25:02,413 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-29 11:25:02,413 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-29 11:25:02,413 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-29 11:25:02,413 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-29 11:25:02,413 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true;unknown-allowed=true; [2020-10-29 11:25:02,862 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-29 11:25:02,899 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-29 11:25:02,902 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-29 11:25:02,903 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-29 11:25:02,904 INFO L275 PluginConnector]: CDTParser initialized [2020-10-29 11:25:02,905 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product38.cil.c [2020-10-29 11:25:02,979 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7baeaae6f/bab3ac65a7664c93be58225ee7622837/FLAG37b219e10 [2020-10-29 11:25:03,710 INFO L306 CDTParser]: Found 1 translation units. [2020-10-29 11:25:03,713 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product38.cil.c [2020-10-29 11:25:03,738 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7baeaae6f/bab3ac65a7664c93be58225ee7622837/FLAG37b219e10 [2020-10-29 11:25:03,940 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7baeaae6f/bab3ac65a7664c93be58225ee7622837 [2020-10-29 11:25:03,943 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-29 11:25:03,950 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-29 11:25:03,953 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-29 11:25:03,953 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-29 11:25:03,957 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-29 11:25:03,959 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 11:25:03" (1/1) ... [2020-10-29 11:25:03,963 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71b9e684 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:25:03, skipping insertion in model container [2020-10-29 11:25:03,963 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 11:25:03" (1/1) ... [2020-10-29 11:25:03,972 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-29 11:25:04,043 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-29 11:25:04,359 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 11:25:04,386 INFO L203 MainTranslator]: Completed pre-run [2020-10-29 11:25:04,556 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 11:25:04,599 INFO L208 MainTranslator]: Completed translation [2020-10-29 11:25:04,600 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:25:04 WrapperNode [2020-10-29 11:25:04,600 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-29 11:25:04,601 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-29 11:25:04,601 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-29 11:25:04,601 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-29 11:25:04,620 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:25:04" (1/1) ... [2020-10-29 11:25:04,621 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:25:04" (1/1) ... [2020-10-29 11:25:04,640 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:25:04" (1/1) ... [2020-10-29 11:25:04,640 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:25:04" (1/1) ... [2020-10-29 11:25:04,671 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:25:04" (1/1) ... [2020-10-29 11:25:04,699 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:25:04" (1/1) ... [2020-10-29 11:25:04,709 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:25:04" (1/1) ... [2020-10-29 11:25:04,724 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-29 11:25:04,726 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-29 11:25:04,729 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-29 11:25:04,729 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-29 11:25:04,730 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:25:04" (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 [2020-10-29 11:25:04,833 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-29 11:25:04,833 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-29 11:25:04,834 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-29 11:25:04,834 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-29 11:25:04,834 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-29 11:25:04,835 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-29 11:25:04,835 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-29 11:25:04,835 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-29 11:25:04,836 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-29 11:25:04,836 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-29 11:25:04,837 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-29 11:25:04,837 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-29 11:25:04,837 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-29 11:25:04,837 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-10-29 11:25:04,837 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-29 11:25:04,838 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-29 11:25:04,838 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-29 11:25:04,838 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-29 11:25:04,839 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-29 11:25:04,839 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-29 11:25:04,839 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-29 11:25:04,839 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-10-29 11:25:04,839 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-10-29 11:25:04,839 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-29 11:25:04,839 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-29 11:25:04,840 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-29 11:25:04,840 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-29 11:25:04,840 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-29 11:25:04,840 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-29 11:25:04,840 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-10-29 11:25:04,840 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-10-29 11:25:04,840 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-29 11:25:04,840 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-29 11:25:04,841 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-29 11:25:04,841 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-29 11:25:04,841 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-29 11:25:04,841 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-29 11:25:04,841 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-29 11:25:04,841 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-29 11:25:04,841 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-10-29 11:25:04,842 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-29 11:25:04,842 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-29 11:25:04,842 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-29 11:25:04,842 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-29 11:25:04,842 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-29 11:25:04,842 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-29 11:25:04,842 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-29 11:25:04,842 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-29 11:25:04,843 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-29 11:25:04,843 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-29 11:25:04,843 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-29 11:25:04,843 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-29 11:25:04,844 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-29 11:25:04,844 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-29 11:25:04,844 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-29 11:25:04,844 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-29 11:25:04,844 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-29 11:25:04,845 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-29 11:25:04,845 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-29 11:25:04,845 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-29 11:25:04,845 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-29 11:25:04,845 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-29 11:25:04,846 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-29 11:25:04,846 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-10-29 11:25:04,846 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-29 11:25:04,846 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-29 11:25:04,846 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-29 11:25:04,846 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-29 11:25:04,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-29 11:25:04,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-29 11:25:04,847 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-29 11:25:04,847 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-29 11:25:04,849 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-29 11:25:04,849 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-29 11:25:04,849 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-29 11:25:04,849 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-29 11:25:04,850 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-29 11:25:04,850 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-29 11:25:04,850 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-29 11:25:04,850 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-29 11:25:04,850 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-29 11:25:04,850 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-10-29 11:25:04,850 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-29 11:25:04,850 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-29 11:25:04,851 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-10-29 11:25:04,851 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-29 11:25:04,851 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-10-29 11:25:04,852 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-10-29 11:25:04,852 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-10-29 11:25:04,852 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-29 11:25:04,852 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-29 11:25:04,852 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-29 11:25:04,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-29 11:25:04,852 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-29 11:25:06,255 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-29 11:25:06,255 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-29 11:25:06,261 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 11:25:06 BoogieIcfgContainer [2020-10-29 11:25:06,261 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-29 11:25:06,268 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-29 11:25:06,268 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-29 11:25:06,272 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-29 11:25:06,272 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 11:25:03" (1/3) ... [2020-10-29 11:25:06,274 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fa8c7f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 11:25:06, skipping insertion in model container [2020-10-29 11:25:06,274 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:25:04" (2/3) ... [2020-10-29 11:25:06,274 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fa8c7f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 11:25:06, skipping insertion in model container [2020-10-29 11:25:06,275 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 11:25:06" (3/3) ... [2020-10-29 11:25:06,276 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product38.cil.c [2020-10-29 11:25:06,290 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-29 11:25:06,295 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-29 11:25:06,317 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-29 11:25:06,359 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-29 11:25:06,359 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-29 11:25:06,359 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-29 11:25:06,360 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-29 11:25:06,360 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-29 11:25:06,360 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-29 11:25:06,360 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-29 11:25:06,361 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-29 11:25:06,395 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states. [2020-10-29 11:25:06,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-10-29 11:25:06,410 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 11:25:06,412 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 11:25:06,412 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]=== [2020-10-29 11:25:06,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 11:25:06,423 INFO L82 PathProgramCache]: Analyzing trace with hash 1749904471, now seen corresponding path program 1 times [2020-10-29 11:25:06,434 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 11:25:06,434 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1689898003] [2020-10-29 11:25:06,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 11:25:06,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:06,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:07,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:07,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:09,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:09,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:11,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:11,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-10-29 11:25:11,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 11:25:11,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-10-29 11:25:11,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:11,776 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:11,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-29 11:25:11,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 11:25:11,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-29 11:25:11,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 12 [2020-10-29 11:25:12,311 WARN L193 SmtUtils]: Spent 399.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-29 11:25:12,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 11:25:12,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:12,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:12,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:12,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:25:12,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:12,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 196 [2020-10-29 11:25:12,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:12,543 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:12,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:25:12,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:25:12,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 11:25:12,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:25:12,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 11:25:12,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:12,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:12,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:12,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:25:12,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:12,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 11:25:12,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:12,646 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:12,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:25:12,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:25:12,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 11:25:12,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:25:12,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-29 11:25:12,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:12,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:12,654 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:12,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:25:12,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:12,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 11:25:12,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:12,655 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:12,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:25:12,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:25:12,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 11:25:12,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:25:12,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-29 11:25:12,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:12,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:12,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:12,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:25:12,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:12,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 11:25:12,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:12,667 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:12,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:25:12,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:25:12,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 11:25:12,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:25:12,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-29 11:25:12,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:12,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:12,686 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:12,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:25:12,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:12,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 11:25:12,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:12,687 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:12,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:25:12,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:25:12,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 11:25:12,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:25:12,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-29 11:25:12,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:12,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:12,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:12,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:25:12,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:12,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 11:25:12,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:12,703 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:12,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:25:12,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 11:25:12,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:25:12,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:25:12,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-29 11:25:12,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:12,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:12,712 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:12,713 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:25:12,713 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:12,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:25:12,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:12,713 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:12,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:25:12,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 11:25:12,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:25:12,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:25:12,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 11:25:12,732 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1689898003] [2020-10-29 11:25:12,735 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 11:25:12,735 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-29 11:25:12,736 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907236536] [2020-10-29 11:25:12,743 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-29 11:25:12,744 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 11:25:12,760 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-29 11:25:12,761 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-29 11:25:12,763 INFO L87 Difference]: Start difference. First operand 174 states. Second operand 4 states. [2020-10-29 11:25:13,409 WARN L193 SmtUtils]: Spent 462.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-29 11:25:14,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 11:25:14,975 INFO L93 Difference]: Finished difference Result 301 states and 394 transitions. [2020-10-29 11:25:14,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 11:25:14,978 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 47 [2020-10-29 11:25:14,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 11:25:14,992 INFO L225 Difference]: With dead ends: 301 [2020-10-29 11:25:14,993 INFO L226 Difference]: Without dead ends: 161 [2020-10-29 11:25:14,998 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-29 11:25:15,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2020-10-29 11:25:15,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 128. [2020-10-29 11:25:15,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2020-10-29 11:25:15,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 149 transitions. [2020-10-29 11:25:15,115 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 149 transitions. Word has length 47 [2020-10-29 11:25:15,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 11:25:15,116 INFO L481 AbstractCegarLoop]: Abstraction has 128 states and 149 transitions. [2020-10-29 11:25:15,116 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-29 11:25:15,116 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 149 transitions. [2020-10-29 11:25:15,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-10-29 11:25:15,120 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 11:25:15,121 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] [2020-10-29 11:25:15,121 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-29 11:25:15,121 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]=== [2020-10-29 11:25:15,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 11:25:15,122 INFO L82 PathProgramCache]: Analyzing trace with hash 1352519060, now seen corresponding path program 1 times [2020-10-29 11:25:15,122 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 11:25:15,123 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1060940] [2020-10-29 11:25:15,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 11:25:15,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:15,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:15,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:15,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:16,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:19,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:19,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:19,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:20,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:20,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 102 [2020-10-29 11:25:20,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-29 11:25:20,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-10-29 11:25:20,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:20,172 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:20,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-29 11:25:20,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 11:25:20,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-29 11:25:20,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:25:20,622 WARN L193 SmtUtils]: Spent 359.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-29 11:25:20,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 11:25:20,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:20,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:20,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:20,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:25:20,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:20,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-10-29 11:25:20,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:20,720 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:20,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:25:20,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:25:20,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 11:25:20,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:25:20,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 11:25:20,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:20,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:20,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:20,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:25:20,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:20,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 11:25:20,741 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:20,741 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:20,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:25:20,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:25:20,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 11:25:20,742 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:25:20,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-29 11:25:20,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:20,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:20,747 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:20,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:25:20,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:20,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 11:25:20,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:20,748 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:20,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:25:20,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:25:20,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 11:25:20,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:25:20,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-29 11:25:20,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:20,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:20,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:20,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:25:20,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:20,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 11:25:20,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:20,756 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:20,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:25:20,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:25:20,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 11:25:20,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:25:20,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-29 11:25:20,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:20,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:20,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:20,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:25:20,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:20,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:25:20,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:20,762 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:20,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:25:20,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:25:20,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 11:25:20,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:25:20,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-29 11:25:20,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:20,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:20,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:20,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:20,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-29 11:25:20,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 11:25:20,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-29 11:25:20,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:20,795 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:20,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:25:20,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:25:20,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-29 11:25:20,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:25:20,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 11:25:20,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:20,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:20,801 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:20,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-29 11:25:20,802 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:20,802 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:25:20,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:20,802 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:20,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:25:20,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:25:20,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:25:20,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:25:20,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 11:25:20,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:20,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:20,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:20,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:25:20,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:20,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:25:20,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:20,808 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:20,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:25:20,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:25:20,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:25:20,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:25:20,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-29 11:25:20,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:20,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:20,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:20,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:25:20,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:20,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 11:25:20,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:20,816 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:20,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 11:25:20,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:25:20,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 11:25:20,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:25:20,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-29 11:25:20,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:20,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:20,843 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:20,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:25:20,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:20,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:25:20,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:20,843 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:20,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:25:20,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 11:25:20,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:25:20,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:25:20,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 11:25:20,858 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1060940] [2020-10-29 11:25:20,858 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 11:25:20,858 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-29 11:25:20,859 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389015167] [2020-10-29 11:25:20,860 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 11:25:20,860 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 11:25:20,861 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 11:25:20,861 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-29 11:25:20,861 INFO L87 Difference]: Start difference. First operand 128 states and 149 transitions. Second operand 8 states. [2020-10-29 11:25:21,467 WARN L193 SmtUtils]: Spent 368.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-29 11:25:22,744 WARN L193 SmtUtils]: Spent 366.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-29 11:25:23,659 WARN L193 SmtUtils]: Spent 365.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-29 11:25:24,777 WARN L193 SmtUtils]: Spent 390.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-29 11:25:25,173 WARN L193 SmtUtils]: Spent 374.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-29 11:25:25,855 WARN L193 SmtUtils]: Spent 352.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-29 11:25:27,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 11:25:27,037 INFO L93 Difference]: Finished difference Result 426 states and 572 transitions. [2020-10-29 11:25:27,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-29 11:25:27,038 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 66 [2020-10-29 11:25:27,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 11:25:27,044 INFO L225 Difference]: With dead ends: 426 [2020-10-29 11:25:27,044 INFO L226 Difference]: Without dead ends: 299 [2020-10-29 11:25:27,048 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2020-10-29 11:25:27,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states. [2020-10-29 11:25:27,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 213. [2020-10-29 11:25:27,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 213 states. [2020-10-29 11:25:27,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 251 transitions. [2020-10-29 11:25:27,156 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 251 transitions. Word has length 66 [2020-10-29 11:25:27,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 11:25:27,157 INFO L481 AbstractCegarLoop]: Abstraction has 213 states and 251 transitions. [2020-10-29 11:25:27,157 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 11:25:27,157 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 251 transitions. [2020-10-29 11:25:27,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-10-29 11:25:27,160 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 11:25:27,160 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 11:25:27,160 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-29 11:25:27,161 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]=== [2020-10-29 11:25:27,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 11:25:27,161 INFO L82 PathProgramCache]: Analyzing trace with hash 1145115984, now seen corresponding path program 1 times [2020-10-29 11:25:27,161 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 11:25:27,162 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1635970422] [2020-10-29 11:25:27,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 11:25:27,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:27,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:27,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:27,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:28,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:28,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:28,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:31,066 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:31,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-29 11:25:31,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-29 11:25:31,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3869 [2020-10-29 11:25:31,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:31,068 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:31,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-29 11:25:31,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 11:25:31,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-29 11:25:31,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:25:31,521 WARN L193 SmtUtils]: Spent 363.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-29 11:25:31,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 11:25:31,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:31,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:31,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:31,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:25:31,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:31,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-29 11:25:31,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:31,599 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:31,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:25:31,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:25:31,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 11:25:31,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:25:31,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 11:25:31,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:31,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:31,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:31,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:25:31,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:31,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:25:31,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:31,618 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:31,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:25:31,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:25:31,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 11:25:31,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:25:31,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-29 11:25:31,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:31,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:31,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:31,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:25:31,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:31,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:25:31,622 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:31,623 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:31,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:25:31,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:25:31,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 11:25:31,623 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:25:31,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-29 11:25:31,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:31,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:31,628 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:31,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:25:31,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:31,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:25:31,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:31,629 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:31,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:25:31,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:25:31,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 11:25:31,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:25:31,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-29 11:25:31,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:31,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:31,633 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:31,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:25:31,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:31,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:25:31,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:31,634 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:31,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:25:31,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:25:31,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 11:25:31,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:25:31,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-29 11:25:31,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:31,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:31,656 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:31,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:25:31,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:31,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 11:25:31,657 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:31,657 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:31,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:25:31,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:25:31,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 11:25:31,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:25:31,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-29 11:25:31,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:31,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:31,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:31,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:31,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:31,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:31,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-29 11:25:31,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 11:25:31,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-29 11:25:31,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:31,697 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:31,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 11:25:31,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 11:25:31,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-29 11:25:31,698 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:25:31,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 11:25:31,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:31,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:31,723 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:31,723 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-29 11:25:31,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:31,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 11:25:31,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:31,724 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:31,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 11:25:31,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 11:25:31,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-29 11:25:31,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:25:31,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 11:25:31,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:31,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:31,749 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:31,749 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:25:31,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:31,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:25:31,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:31,750 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:31,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:25:31,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:25:31,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 11:25:31,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:25:31,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-29 11:25:31,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:31,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:31,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:31,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:25:31,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:31,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 11:25:31,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:31,757 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:31,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:25:31,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:25:31,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 11:25:31,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:25:31,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-29 11:25:31,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:31,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:31,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:31,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:25:31,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:31,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 11:25:31,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:31,766 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:31,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 11:25:31,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:25:31,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 11:25:31,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:25:31,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 11:25:31,807 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1635970422] [2020-10-29 11:25:31,807 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 11:25:31,807 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-29 11:25:31,807 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573114281] [2020-10-29 11:25:31,808 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-29 11:25:31,808 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 11:25:31,808 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-29 11:25:31,809 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2020-10-29 11:25:31,809 INFO L87 Difference]: Start difference. First operand 213 states and 251 transitions. Second operand 11 states. [2020-10-29 11:25:32,434 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-29 11:25:34,104 WARN L193 SmtUtils]: Spent 361.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-29 11:25:34,518 WARN L193 SmtUtils]: Spent 375.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-29 11:25:34,969 WARN L193 SmtUtils]: Spent 372.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-29 11:25:35,392 WARN L193 SmtUtils]: Spent 388.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-29 11:25:35,853 WARN L193 SmtUtils]: Spent 357.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-29 11:25:36,483 WARN L193 SmtUtils]: Spent 363.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-29 11:25:37,838 WARN L193 SmtUtils]: Spent 385.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-29 11:25:38,322 WARN L193 SmtUtils]: Spent 354.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-29 11:25:39,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 11:25:39,696 INFO L93 Difference]: Finished difference Result 699 states and 929 transitions. [2020-10-29 11:25:39,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-29 11:25:39,697 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 70 [2020-10-29 11:25:39,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 11:25:39,704 INFO L225 Difference]: With dead ends: 699 [2020-10-29 11:25:39,704 INFO L226 Difference]: Without dead ends: 510 [2020-10-29 11:25:39,706 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=173, Invalid=529, Unknown=0, NotChecked=0, Total=702 [2020-10-29 11:25:39,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 510 states. [2020-10-29 11:25:39,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 510 to 377. [2020-10-29 11:25:39,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 377 states. [2020-10-29 11:25:39,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 377 states and 441 transitions. [2020-10-29 11:25:39,835 INFO L78 Accepts]: Start accepts. Automaton has 377 states and 441 transitions. Word has length 70 [2020-10-29 11:25:39,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 11:25:39,836 INFO L481 AbstractCegarLoop]: Abstraction has 377 states and 441 transitions. [2020-10-29 11:25:39,836 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-29 11:25:39,836 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 441 transitions. [2020-10-29 11:25:39,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-10-29 11:25:39,838 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 11:25:39,839 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 11:25:39,839 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-29 11:25:39,839 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]=== [2020-10-29 11:25:39,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 11:25:39,840 INFO L82 PathProgramCache]: Analyzing trace with hash -465518624, now seen corresponding path program 1 times [2020-10-29 11:25:39,840 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 11:25:39,840 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [101175911] [2020-10-29 11:25:39,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 11:25:39,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:39,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:40,217 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:40,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-29 11:25:40,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:40,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 344 [2020-10-29 11:25:40,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:40,218 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:40,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 11:25:40,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 84 [2020-10-29 11:25:40,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 11:25:40,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:25:40,616 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-29 11:25:40,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 11:25:40,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:40,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:40,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:40,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:25:40,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:40,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-29 11:25:40,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:40,673 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:40,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:25:40,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:25:40,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:25:40,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:25:40,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 11:25:40,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:40,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:40,689 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:40,689 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:25:40,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:40,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 11:25:40,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:40,690 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:40,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:25:40,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:25:40,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:25:40,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:25:40,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-29 11:25:40,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:40,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:40,693 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:40,694 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:25:40,694 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:40,694 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 11:25:40,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:40,694 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:40,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:25:40,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:25:40,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:25:40,695 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:25:40,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-29 11:25:40,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:40,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:40,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:40,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:25:40,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:40,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:25:40,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:40,699 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:40,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:25:40,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:25:40,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:25:40,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:25:40,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-29 11:25:40,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:40,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:40,703 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:40,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:25:40,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:40,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 11:25:40,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:40,704 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:40,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:25:40,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:25:40,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:25:40,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:25:40,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-29 11:25:40,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:40,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:40,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:40,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:25:40,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:40,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:25:40,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:40,717 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:40,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:25:40,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:25:40,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:25:40,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:25:40,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-29 11:25:40,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:40,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:40,750 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:40,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-29 11:25:40,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:40,751 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-29 11:25:40,751 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:40,751 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:40,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 11:25:40,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-29 11:25:40,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 11:25:40,752 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:25:40,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 11:25:40,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:40,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:40,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:40,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-29 11:25:40,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:40,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-29 11:25:40,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:40,780 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:40,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 11:25:40,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-29 11:25:40,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 11:25:40,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:25:40,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 11:25:40,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:40,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:40,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:40,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-29 11:25:40,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:40,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-29 11:25:40,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:40,871 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:40,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 11:25:40,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:25:40,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-29 11:25:40,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:25:40,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 11:25:40,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:40,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:40,906 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:40,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 11:25:40,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:40,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:25:40,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:40,907 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:40,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:25:40,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:25:40,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:25:40,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-29 11:25:40,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-29 11:25:40,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:40,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:40,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:40,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:25:40,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:40,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:25:40,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:40,917 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:40,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:25:40,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 11:25:40,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:25:40,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:25:40,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-29 11:25:40,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:40,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:40,923 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:40,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:25:40,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:40,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:25:40,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:40,924 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:40,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:25:40,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 11:25:40,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:25:40,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:25:40,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-29 11:25:40,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:40,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:40,929 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:40,929 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:25:40,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:40,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 11:25:40,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:40,930 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:40,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:25:40,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 11:25:40,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:25:40,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:25:40,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 11:25:40,972 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [101175911] [2020-10-29 11:25:40,973 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 11:25:40,973 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-29 11:25:40,973 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694720057] [2020-10-29 11:25:40,975 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-29 11:25:40,975 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 11:25:40,976 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-29 11:25:40,976 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-10-29 11:25:40,976 INFO L87 Difference]: Start difference. First operand 377 states and 441 transitions. Second operand 9 states. [2020-10-29 11:25:42,309 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-29 11:25:42,702 WARN L193 SmtUtils]: Spent 369.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-29 11:25:43,121 WARN L193 SmtUtils]: Spent 368.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-29 11:25:43,551 WARN L193 SmtUtils]: Spent 387.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-29 11:25:45,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 11:25:45,194 INFO L93 Difference]: Finished difference Result 853 states and 1081 transitions. [2020-10-29 11:25:45,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 11:25:45,195 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 85 [2020-10-29 11:25:45,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 11:25:45,201 INFO L225 Difference]: With dead ends: 853 [2020-10-29 11:25:45,201 INFO L226 Difference]: Without dead ends: 500 [2020-10-29 11:25:45,203 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2020-10-29 11:25:45,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 500 states. [2020-10-29 11:25:45,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 500 to 387. [2020-10-29 11:25:45,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 387 states. [2020-10-29 11:25:45,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 387 states and 451 transitions. [2020-10-29 11:25:45,331 INFO L78 Accepts]: Start accepts. Automaton has 387 states and 451 transitions. Word has length 85 [2020-10-29 11:25:45,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 11:25:45,332 INFO L481 AbstractCegarLoop]: Abstraction has 387 states and 451 transitions. [2020-10-29 11:25:45,332 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-29 11:25:45,332 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 451 transitions. [2020-10-29 11:25:45,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-10-29 11:25:45,334 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 11:25:45,334 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 11:25:45,334 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-29 11:25:45,335 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]=== [2020-10-29 11:25:45,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 11:25:45,335 INFO L82 PathProgramCache]: Analyzing trace with hash 236081250, now seen corresponding path program 1 times [2020-10-29 11:25:45,335 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 11:25:45,336 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1001647207] [2020-10-29 11:25:45,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 11:25:45,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:45,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:45,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:45,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-29 11:25:45,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:45,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 264 [2020-10-29 11:25:45,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:45,628 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:45,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 11:25:45,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-10-29 11:25:45,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 11:25:45,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:25:45,977 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-29 11:25:45,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 11:25:45,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:45,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:46,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:46,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:25:46,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:46,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-29 11:25:46,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:46,039 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:46,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:25:46,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:25:46,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:25:46,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:25:46,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 11:25:46,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:46,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:46,054 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:46,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:25:46,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:46,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 11:25:46,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:46,055 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:46,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:25:46,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:25:46,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:25:46,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:25:46,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-29 11:25:46,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:46,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:46,058 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:46,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:25:46,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:46,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 11:25:46,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:46,058 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:46,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:25:46,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:25:46,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:25:46,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:25:46,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-29 11:25:46,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:46,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:46,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:46,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:25:46,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:46,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:25:46,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:46,064 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:46,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:25:46,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:25:46,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:25:46,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:25:46,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-29 11:25:46,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:46,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:46,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:46,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:25:46,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:46,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 11:25:46,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:46,069 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:46,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:25:46,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:25:46,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:25:46,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:25:46,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-29 11:25:46,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:46,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:46,079 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:46,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:25:46,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:46,080 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:25:46,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:46,080 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:46,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:25:46,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:25:46,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:25:46,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:25:46,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-29 11:25:46,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:46,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:46,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:46,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-29 11:25:46,109 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:46,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-29 11:25:46,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:46,110 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:46,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 11:25:46,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-29 11:25:46,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 11:25:46,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:25:46,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 11:25:46,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:46,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:46,164 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:46,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-29 11:25:46,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:46,165 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-29 11:25:46,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:46,165 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:46,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 11:25:46,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-29 11:25:46,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 11:25:46,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:25:46,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 11:25:46,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:46,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:46,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:46,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-29 11:25:46,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:46,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 11:25:46,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:46,183 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:46,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 11:25:46,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 11:25:46,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 11:25:46,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:25:46,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 11:25:46,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:46,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:46,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:46,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 11:25:46,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:46,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 11:25:46,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:46,208 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:46,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 11:25:46,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:25:46,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 11:25:46,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:25:46,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-29 11:25:46,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:46,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:46,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:46,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:25:46,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:46,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:25:46,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:46,224 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:46,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:25:46,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 11:25:46,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:25:46,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:25:46,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-29 11:25:46,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:46,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:46,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:46,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:25:46,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:46,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:25:46,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:46,235 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:46,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:25:46,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 11:25:46,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:25:46,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-29 11:25:46,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-29 11:25:46,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:46,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:46,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:46,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:25:46,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:46,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:25:46,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:46,242 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:46,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:25:46,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 11:25:46,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:25:46,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:25:46,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 11:25:46,256 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1001647207] [2020-10-29 11:25:46,256 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 11:25:46,256 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-29 11:25:46,256 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608098030] [2020-10-29 11:25:46,257 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 11:25:46,257 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 11:25:46,258 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 11:25:46,258 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-10-29 11:25:46,258 INFO L87 Difference]: Start difference. First operand 387 states and 451 transitions. Second operand 8 states. [2020-10-29 11:25:47,352 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-29 11:25:47,729 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-29 11:25:48,125 WARN L193 SmtUtils]: Spent 360.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-29 11:25:49,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 11:25:49,813 INFO L93 Difference]: Finished difference Result 877 states and 1126 transitions. [2020-10-29 11:25:49,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-29 11:25:49,814 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 85 [2020-10-29 11:25:49,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 11:25:49,820 INFO L225 Difference]: With dead ends: 877 [2020-10-29 11:25:49,820 INFO L226 Difference]: Without dead ends: 514 [2020-10-29 11:25:49,823 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2020-10-29 11:25:49,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 514 states. [2020-10-29 11:25:49,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 514 to 395. [2020-10-29 11:25:49,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 395 states. [2020-10-29 11:25:49,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 395 states to 395 states and 459 transitions. [2020-10-29 11:25:49,928 INFO L78 Accepts]: Start accepts. Automaton has 395 states and 459 transitions. Word has length 85 [2020-10-29 11:25:49,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 11:25:49,929 INFO L481 AbstractCegarLoop]: Abstraction has 395 states and 459 transitions. [2020-10-29 11:25:49,929 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 11:25:49,929 INFO L276 IsEmpty]: Start isEmpty. Operand 395 states and 459 transitions. [2020-10-29 11:25:49,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-10-29 11:25:49,931 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 11:25:49,931 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 11:25:49,931 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-29 11:25:49,932 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 11:25:49,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 11:25:49,932 INFO L82 PathProgramCache]: Analyzing trace with hash 1961562147, now seen corresponding path program 1 times [2020-10-29 11:25:49,933 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 11:25:49,933 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1271932317] [2020-10-29 11:25:49,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 11:25:49,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:49,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:50,715 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:50,715 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-29 11:25:50,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:50,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 754 [2020-10-29 11:25:50,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:50,716 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:50,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-29 11:25:50,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 11:25:50,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-29 11:25:50,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:25:51,082 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-29 11:25:51,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 11:25:51,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:51,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:51,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:51,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:25:51,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:51,165 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-29 11:25:51,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:51,166 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:51,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:25:51,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:25:51,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 11:25:51,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:25:51,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 11:25:51,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:51,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:51,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:51,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:25:51,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:51,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:25:51,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:51,185 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:51,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:25:51,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:25:51,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 11:25:51,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:25:51,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-29 11:25:51,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:51,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:51,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:51,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:25:51,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:51,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:25:51,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:51,190 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:51,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:25:51,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:25:51,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 11:25:51,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:25:51,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-29 11:25:51,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:51,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:51,195 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:51,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:25:51,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:51,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 11:25:51,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:51,196 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:51,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:25:51,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:25:51,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 11:25:51,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:25:51,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-29 11:25:51,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:51,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:51,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:51,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:25:51,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:51,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:25:51,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:51,201 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:51,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:25:51,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:25:51,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 11:25:51,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:25:51,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-29 11:25:51,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:51,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:51,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:51,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:25:51,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:51,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:25:51,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:51,214 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:51,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:25:51,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:25:51,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 11:25:51,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:25:51,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-29 11:25:51,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:51,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:51,254 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:51,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-29 11:25:51,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:51,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 11:25:51,255 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:51,256 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:51,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:25:51,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-29 11:25:51,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-29 11:25:51,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:25:51,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 11:25:51,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:51,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:51,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:51,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-29 11:25:51,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:51,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 11:25:51,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:51,284 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:51,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:25:51,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:25:51,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-29 11:25:51,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:25:51,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 11:25:51,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:51,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:51,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:51,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-29 11:25:51,306 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:51,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 11:25:51,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:51,307 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:51,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:25:51,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:25:51,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-29 11:25:51,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:25:51,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 11:25:51,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:51,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:51,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:51,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 11:25:51,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:51,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 11:25:51,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:51,325 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:51,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:25:51,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:25:51,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-29 11:25:51,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:25:51,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-29 11:25:51,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:51,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:51,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:51,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:25:51,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:51,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:25:51,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:51,344 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:51,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:25:51,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:25:51,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 11:25:51,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:25:51,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-29 11:25:51,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:51,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:51,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:51,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:25:51,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:51,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:25:51,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:51,353 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:51,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:25:51,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 11:25:51,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:25:51,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:25:51,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-29 11:25:51,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:51,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:51,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:51,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:25:51,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:51,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:25:51,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:51,358 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:51,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:25:51,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 11:25:51,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:25:51,358 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:25:51,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 11:25:51,376 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1271932317] [2020-10-29 11:25:51,377 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 11:25:51,377 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-29 11:25:51,378 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015697844] [2020-10-29 11:25:51,378 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 11:25:51,378 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 11:25:51,379 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 11:25:51,379 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-29 11:25:51,380 INFO L87 Difference]: Start difference. First operand 395 states and 459 transitions. Second operand 7 states. [2020-10-29 11:25:51,912 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-29 11:25:52,659 WARN L193 SmtUtils]: Spent 377.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-29 11:25:56,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 11:25:56,254 INFO L93 Difference]: Finished difference Result 1251 states and 1659 transitions. [2020-10-29 11:25:56,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-29 11:25:56,255 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 85 [2020-10-29 11:25:56,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 11:25:56,262 INFO L225 Difference]: With dead ends: 1251 [2020-10-29 11:25:56,262 INFO L226 Difference]: Without dead ends: 871 [2020-10-29 11:25:56,264 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 33 SyntacticMatches, 3 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2020-10-29 11:25:56,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 871 states. [2020-10-29 11:25:56,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 871 to 732. [2020-10-29 11:25:56,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 732 states. [2020-10-29 11:25:56,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 732 states to 732 states and 891 transitions. [2020-10-29 11:25:56,474 INFO L78 Accepts]: Start accepts. Automaton has 732 states and 891 transitions. Word has length 85 [2020-10-29 11:25:56,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 11:25:56,475 INFO L481 AbstractCegarLoop]: Abstraction has 732 states and 891 transitions. [2020-10-29 11:25:56,475 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 11:25:56,475 INFO L276 IsEmpty]: Start isEmpty. Operand 732 states and 891 transitions. [2020-10-29 11:25:56,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-10-29 11:25:56,477 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 11:25:56,477 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 11:25:56,477 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-29 11:25:56,478 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 11:25:56,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 11:25:56,478 INFO L82 PathProgramCache]: Analyzing trace with hash 1135015689, now seen corresponding path program 1 times [2020-10-29 11:25:56,478 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 11:25:56,479 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [762702004] [2020-10-29 11:25:56,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 11:25:56,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-29 11:25:56,516 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-29 11:25:56,516 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-29 11:25:56,520 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-29 11:25:56,544 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 11:25:56 BoogieIcfgContainer [2020-10-29 11:25:56,544 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-29 11:25:56,546 INFO L168 Benchmark]: Toolchain (without parser) took 52600.34 ms. Allocated memory was 154.1 MB in the beginning and 585.1 MB in the end (delta: 431.0 MB). Free memory was 127.8 MB in the beginning and 457.4 MB in the end (delta: -329.6 MB). Peak memory consumption was 101.9 MB. Max. memory is 8.0 GB. [2020-10-29 11:25:56,547 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 154.1 MB. Free memory was 126.6 MB in the beginning and 126.5 MB in the end (delta: 102.4 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-29 11:25:56,548 INFO L168 Benchmark]: CACSL2BoogieTranslator took 647.29 ms. Allocated memory is still 154.1 MB. Free memory was 127.1 MB in the beginning and 106.1 MB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. [2020-10-29 11:25:56,548 INFO L168 Benchmark]: Boogie Preprocessor took 123.83 ms. Allocated memory is still 154.1 MB. Free memory was 106.1 MB in the beginning and 135.4 MB in the end (delta: -29.3 MB). Peak memory consumption was 6.6 MB. Max. memory is 8.0 GB. [2020-10-29 11:25:56,549 INFO L168 Benchmark]: RCFGBuilder took 1535.17 ms. Allocated memory is still 154.1 MB. Free memory was 134.9 MB in the beginning and 98.4 MB in the end (delta: 36.5 MB). Peak memory consumption was 54.3 MB. Max. memory is 8.0 GB. [2020-10-29 11:25:56,550 INFO L168 Benchmark]: TraceAbstraction took 50276.13 ms. Allocated memory was 154.1 MB in the beginning and 585.1 MB in the end (delta: 431.0 MB). Free memory was 97.4 MB in the beginning and 457.4 MB in the end (delta: -360.0 MB). Peak memory consumption was 70.4 MB. Max. memory is 8.0 GB. [2020-10-29 11:25:56,553 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 154.1 MB. Free memory was 126.6 MB in the beginning and 126.5 MB in the end (delta: 102.4 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 647.29 ms. Allocated memory is still 154.1 MB. Free memory was 127.1 MB in the beginning and 106.1 MB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 123.83 ms. Allocated memory is still 154.1 MB. Free memory was 106.1 MB in the beginning and 135.4 MB in the end (delta: -29.3 MB). Peak memory consumption was 6.6 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1535.17 ms. Allocated memory is still 154.1 MB. Free memory was 134.9 MB in the beginning and 98.4 MB in the end (delta: 36.5 MB). Peak memory consumption was 54.3 MB. Max. memory is 8.0 GB. * TraceAbstraction took 50276.13 ms. Allocated memory was 154.1 MB in the beginning and 585.1 MB in the end (delta: 431.0 MB). Free memory was 97.4 MB in the beginning and 457.4 MB in the end (delta: -360.0 MB). Peak memory consumption was 70.4 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: [L42] int cleanupTimeShifts = 4; [L379] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L582] int pumpRunning = 0; [L583] int systemActive = 1; [L845] int waterLevel = 1; [L846] int methaneLevelCritical = 0; [L123] int retValue_acc ; [L124] int tmp ; [L128] FCALL select_helpers() [L129] FCALL select_features() [L130] CALL, EXPR valid_product() [L172] int retValue_acc ; [L175] retValue_acc = 1 [L176] return (retValue_acc); [L130] RET, EXPR valid_product() [L130] tmp = valid_product() [L132] COND TRUE \read(tmp) [L134] FCALL setup() [L135] CALL runTest() [L114] CALL test() [L769] int splverifierCounter ; [L770] int tmp ; [L771] int tmp___0 ; [L772] int tmp___1 ; [L773] int tmp___2 ; [L776] splverifierCounter = 0 [L778] COND TRUE 1 [L780] COND TRUE splverifierCounter < 4 [L786] tmp = __VERIFIER_nondet_int() [L788] COND TRUE \read(tmp) [L790] CALL waterRise() [L863] COND TRUE waterLevel < 2 [L864] waterLevel = waterLevel + 1 [L790] RET waterRise() [L796] tmp___0 = __VERIFIER_nondet_int() [L798] COND TRUE \read(tmp___0) [L800] CALL changeMethaneLevel() [L875] COND FALSE !(\read(methaneLevelCritical)) [L878] methaneLevelCritical = 1 [L800] RET changeMethaneLevel() [L806] tmp___2 = __VERIFIER_nondet_int() [L808] COND FALSE !(\read(tmp___2)) [L814] tmp___1 = __VERIFIER_nondet_int() [L816] COND FALSE !(\read(tmp___1)) [L823] CALL timeShift() [L589] COND FALSE !(\read(pumpRunning)) [L596] COND TRUE \read(systemActive) [L598] CALL processEnvironment() [L644] int tmp ; [L647] COND FALSE !(\read(pumpRunning)) [L662] CALL processEnvironment__wrappee__highWaterSensor() [L618] int tmp ; [L621] COND TRUE ! pumpRunning [L623] CALL, EXPR isHighWaterLevel() [L741] int retValue_acc ; [L742] int tmp ; [L743] int tmp___0 ; [L747] CALL, EXPR isHighWaterSensorDry() [L925] int retValue_acc ; [L928] COND FALSE !(waterLevel < 2) [L932] retValue_acc = 0 [L933] return (retValue_acc); [L747] RET, EXPR isHighWaterSensorDry() [L747] tmp = isHighWaterSensorDry() [L749] COND FALSE !(\read(tmp)) [L752] tmp___0 = 1 [L754] retValue_acc = tmp___0 [L755] return (retValue_acc); [L623] RET, EXPR isHighWaterLevel() [L623] tmp = isHighWaterLevel() [L625] COND TRUE \read(tmp) [L627] CALL activatePump() [L672] pumpRunning = 1 [L627] RET activatePump() [L662] RET processEnvironment__wrappee__highWaterSensor() [L598] RET processEnvironment() [L604] CALL __utac_acc__Specification1_spec__1() [L185] int tmp ; [L186] int tmp___0 ; [L190] CALL, EXPR isMethaneLevelCritical() [L884] int retValue_acc ; [L887] retValue_acc = methaneLevelCritical [L888] return (retValue_acc); [L190] RET, EXPR isMethaneLevelCritical() [L190] tmp = isMethaneLevelCritical() [L192] COND TRUE \read(tmp) [L194] CALL, EXPR isPumpRunning() [L696] int retValue_acc ; [L699] retValue_acc = pumpRunning [L700] return (retValue_acc); [L194] RET, EXPR isPumpRunning() [L194] tmp___0 = isPumpRunning() [L196] COND TRUE \read(tmp___0) [L198] CALL __automaton_fail() [L839] CALL reach_error() [L3] __assert_fail("0", "minepump_spec1_product38.cil.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 40 procedures, 241 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 50.1s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 29.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 822 SDtfs, 1586 SDslu, 852 SDs, 0 SdLazy, 4559 SolverSat, 1086 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 15.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 236 GetRequests, 156 SyntacticMatches, 4 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 204 ImplicationChecksByTransitivity, 12.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=732occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 6 MinimizatonAttempts, 623 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 19.5s InterpolantComputationTime, 527 NumberOfCodeBlocks, 527 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 432 ConstructedInterpolants, 0 QuantifiedInterpolants, 144285 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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...