/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product27.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-28 16:54:37,262 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-28 16:54:37,265 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-28 16:54:37,310 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-28 16:54:37,311 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-28 16:54:37,312 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-28 16:54:37,314 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-28 16:54:37,316 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-28 16:54:37,318 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-28 16:54:37,319 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-28 16:54:37,321 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-28 16:54:37,322 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-28 16:54:37,323 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-28 16:54:37,324 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-28 16:54:37,325 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-28 16:54:37,327 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-28 16:54:37,328 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-28 16:54:37,329 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-28 16:54:37,331 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-28 16:54:37,333 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-28 16:54:37,335 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-28 16:54:37,336 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-28 16:54:37,338 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-28 16:54:37,339 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-28 16:54:37,342 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-28 16:54:37,342 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-28 16:54:37,342 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-28 16:54:37,344 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-28 16:54:37,344 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-28 16:54:37,345 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-28 16:54:37,346 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-28 16:54:37,347 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-28 16:54:37,348 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-28 16:54:37,348 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-28 16:54:37,350 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-28 16:54:37,350 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-28 16:54:37,351 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-28 16:54:37,351 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-28 16:54:37,352 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-28 16:54:37,353 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-28 16:54:37,354 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-28 16:54:37,358 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-28 16:54:37,395 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-28 16:54:37,396 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-28 16:54:37,397 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-28 16:54:37,397 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-28 16:54:37,398 INFO L138 SettingsManager]: * Use SBE=true [2020-10-28 16:54:37,398 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-28 16:54:37,398 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-28 16:54:37,398 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-28 16:54:37,399 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-28 16:54:37,399 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-28 16:54:37,399 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-28 16:54:37,399 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-28 16:54:37,399 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-28 16:54:37,400 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-28 16:54:37,400 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-28 16:54:37,400 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-28 16:54:37,400 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-28 16:54:37,400 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-28 16:54:37,401 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-28 16:54:37,401 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-28 16:54:37,401 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-28 16:54:37,401 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 16:54:37,401 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-28 16:54:37,402 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-28 16:54:37,402 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-28 16:54:37,402 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-28 16:54:37,402 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-28 16:54:37,402 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-28 16:54:37,403 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-28 16:54:37,403 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true;unknown-allowed=true; [2020-10-28 16:54:37,745 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-28 16:54:37,774 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-28 16:54:37,779 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-28 16:54:37,781 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-28 16:54:37,781 INFO L275 PluginConnector]: CDTParser initialized [2020-10-28 16:54:37,783 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product27.cil.c [2020-10-28 16:54:37,861 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1ab69b837/e742c3b6e63a41fa9f5e0c969440781a/FLAG900237e8f [2020-10-28 16:54:38,470 INFO L306 CDTParser]: Found 1 translation units. [2020-10-28 16:54:38,471 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product27.cil.c [2020-10-28 16:54:38,486 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1ab69b837/e742c3b6e63a41fa9f5e0c969440781a/FLAG900237e8f [2020-10-28 16:54:38,757 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1ab69b837/e742c3b6e63a41fa9f5e0c969440781a [2020-10-28 16:54:38,760 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-28 16:54:38,767 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-28 16:54:38,768 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-28 16:54:38,769 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-28 16:54:38,772 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-28 16:54:38,773 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 04:54:38" (1/1) ... [2020-10-28 16:54:38,776 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49acb9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:54:38, skipping insertion in model container [2020-10-28 16:54:38,777 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 04:54:38" (1/1) ... [2020-10-28 16:54:38,785 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-28 16:54:38,834 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-28 16:54:39,170 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 16:54:39,190 INFO L203 MainTranslator]: Completed pre-run [2020-10-28 16:54:39,332 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 16:54:39,376 INFO L208 MainTranslator]: Completed translation [2020-10-28 16:54:39,377 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:54:39 WrapperNode [2020-10-28 16:54:39,377 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-28 16:54:39,378 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-28 16:54:39,378 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-28 16:54:39,378 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-28 16:54:39,391 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:54:39" (1/1) ... [2020-10-28 16:54:39,394 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:54:39" (1/1) ... [2020-10-28 16:54:39,436 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:54:39" (1/1) ... [2020-10-28 16:54:39,437 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:54:39" (1/1) ... [2020-10-28 16:54:39,467 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:54:39" (1/1) ... [2020-10-28 16:54:39,476 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:54:39" (1/1) ... [2020-10-28 16:54:39,481 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:54:39" (1/1) ... [2020-10-28 16:54:39,489 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-28 16:54:39,490 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-28 16:54:39,490 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-28 16:54:39,490 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-28 16:54:39,491 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:54:39" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 16:54:39,566 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-28 16:54:39,566 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-28 16:54:39,566 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-28 16:54:39,567 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-28 16:54:39,567 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-28 16:54:39,567 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-28 16:54:39,567 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-10-28 16:54:39,567 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-28 16:54:39,568 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-10-28 16:54:39,568 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-28 16:54:39,568 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-28 16:54:39,568 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-28 16:54:39,568 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-28 16:54:39,568 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-28 16:54:39,568 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-10-28 16:54:39,569 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-10-28 16:54:39,569 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-10-28 16:54:39,569 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-28 16:54:39,569 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-28 16:54:39,569 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-28 16:54:39,569 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-28 16:54:39,570 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-28 16:54:39,570 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-28 16:54:39,570 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-28 16:54:39,570 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-28 16:54:39,570 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-28 16:54:39,570 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-28 16:54:39,571 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-28 16:54:39,571 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-28 16:54:39,571 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-28 16:54:39,571 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-28 16:54:39,571 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-28 16:54:39,571 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-28 16:54:39,572 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-28 16:54:39,572 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-10-28 16:54:39,572 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-28 16:54:39,572 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-28 16:54:39,572 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-28 16:54:39,572 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-28 16:54:39,573 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-28 16:54:39,573 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-28 16:54:39,573 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-28 16:54:39,573 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-28 16:54:39,573 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-28 16:54:39,573 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-28 16:54:39,574 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-28 16:54:39,574 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-28 16:54:39,574 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-28 16:54:39,574 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-10-28 16:54:39,574 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-28 16:54:39,574 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-28 16:54:39,575 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-28 16:54:39,575 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-28 16:54:39,575 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-28 16:54:39,575 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-28 16:54:39,575 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-10-28 16:54:39,576 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-28 16:54:39,576 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-28 16:54:39,576 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-28 16:54:39,576 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-28 16:54:39,576 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-10-28 16:54:39,577 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-28 16:54:39,577 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-10-28 16:54:39,577 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-10-28 16:54:39,577 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-10-28 16:54:39,577 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-28 16:54:39,577 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-28 16:54:39,578 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-28 16:54:39,578 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-28 16:54:39,578 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-28 16:54:39,578 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-28 16:54:39,578 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-28 16:54:39,579 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-28 16:54:39,579 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-28 16:54:39,579 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-28 16:54:39,579 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-28 16:54:39,579 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-28 16:54:39,579 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-28 16:54:39,580 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-28 16:54:39,580 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-28 16:54:39,580 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-28 16:54:39,580 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-28 16:54:39,580 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-28 16:54:39,580 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-28 16:54:39,581 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-28 16:54:39,581 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-28 16:54:39,581 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-28 16:54:39,581 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-28 16:54:39,581 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-28 16:54:39,581 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-28 16:54:39,582 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-28 16:54:39,582 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-28 16:54:39,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-28 16:54:39,582 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-28 16:54:40,992 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-28 16:54:40,993 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-28 16:54:40,995 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 04:54:40 BoogieIcfgContainer [2020-10-28 16:54:40,995 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-28 16:54:40,997 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-28 16:54:40,997 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-28 16:54:41,001 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-28 16:54:41,001 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 04:54:38" (1/3) ... [2020-10-28 16:54:41,002 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@329f2cad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 04:54:41, skipping insertion in model container [2020-10-28 16:54:41,002 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:54:39" (2/3) ... [2020-10-28 16:54:41,003 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@329f2cad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 04:54:41, skipping insertion in model container [2020-10-28 16:54:41,003 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 04:54:40" (3/3) ... [2020-10-28 16:54:41,004 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product27.cil.c [2020-10-28 16:54:41,016 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-28 16:54:41,022 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-28 16:54:41,035 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-28 16:54:41,063 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-28 16:54:41,063 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-28 16:54:41,063 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-28 16:54:41,063 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-28 16:54:41,063 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-28 16:54:41,064 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-28 16:54:41,064 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-28 16:54:41,064 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-28 16:54:41,086 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states. [2020-10-28 16:54:41,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-10-28 16:54:41,097 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 16:54:41,098 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 16:54:41,099 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 16:54:41,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 16:54:41,105 INFO L82 PathProgramCache]: Analyzing trace with hash 1220008463, now seen corresponding path program 1 times [2020-10-28 16:54:41,115 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 16:54:41,115 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1660893905] [2020-10-28 16:54:41,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 16:54:41,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:54:41,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:41,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:42,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:44,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:54:44,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-28 16:54:44,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 16:54:44,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2982 [2020-10-28 16:54:44,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:54:44,423 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:54:44,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:54:44,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-10-28 16:54:44,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:54:44,425 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7 [2020-10-28 16:54:45,140 WARN L193 SmtUtils]: Spent 635.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-28 16:54:45,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 16:54:45,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:54:45,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:45,276 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:54:45,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:54:45,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:54:45,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 119 [2020-10-28 16:54:45,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:54:45,278 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:54:45,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:54:45,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:54:45,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:54:45,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:54:45,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 16:54:45,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:54:45,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:45,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:54:45,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:54:45,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:54:45,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:54:45,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:54:45,340 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:54:45,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:54:45,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:54:45,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:54:45,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:54:45,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-28 16:54:45,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:54:45,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:45,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:54:45,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:54:45,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:54:45,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:54:45,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:54:45,349 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:54:45,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:54:45,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:54:45,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:54:45,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:54:45,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 16:54:45,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:54:45,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:45,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:54:45,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:54:45,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:54:45,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:54:45,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:54:45,359 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:54:45,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:54:45,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:54:45,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:54:45,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:54:45,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-28 16:54:45,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:54:45,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:45,378 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:54:45,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:54:45,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:54:45,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 16:54:45,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:54:45,380 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:54:45,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:54:45,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:54:45,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:54:45,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:54:45,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-28 16:54:45,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:54:45,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:45,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:54:45,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:54:45,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:54:45,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:54:45,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:54:45,393 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:54:45,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:54:45,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:54:45,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:54:45,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:54:45,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-28 16:54:45,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:54:45,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:45,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:54:45,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:54:45,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:54:45,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 16:54:45,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:54:45,410 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:54:45,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:54:45,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:54:45,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:54:45,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:54:45,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-28 16:54:45,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:54:45,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:45,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:54:45,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:54:45,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:54:45,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 16:54:45,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:54:45,423 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:54:45,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:54:45,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:54:45,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:54:45,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-28 16:54:45,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 16:54:45,449 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1660893905] [2020-10-28 16:54:45,452 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 16:54:45,453 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-28 16:54:45,454 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537274533] [2020-10-28 16:54:45,460 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-28 16:54:45,461 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 16:54:45,478 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-28 16:54:45,479 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-28 16:54:45,481 INFO L87 Difference]: Start difference. First operand 174 states. Second operand 3 states. [2020-10-28 16:54:47,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 16:54:47,436 INFO L93 Difference]: Finished difference Result 278 states and 366 transitions. [2020-10-28 16:54:47,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-28 16:54:47,438 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 53 [2020-10-28 16:54:47,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 16:54:47,452 INFO L225 Difference]: With dead ends: 278 [2020-10-28 16:54:47,452 INFO L226 Difference]: Without dead ends: 149 [2020-10-28 16:54:47,456 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-28 16:54:47,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2020-10-28 16:54:47,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 117. [2020-10-28 16:54:47,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 117 states. [2020-10-28 16:54:47,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 137 transitions. [2020-10-28 16:54:47,548 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 137 transitions. Word has length 53 [2020-10-28 16:54:47,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 16:54:47,549 INFO L481 AbstractCegarLoop]: Abstraction has 117 states and 137 transitions. [2020-10-28 16:54:47,549 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-28 16:54:47,549 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 137 transitions. [2020-10-28 16:54:47,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-10-28 16:54:47,553 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 16:54:47,553 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 16:54:47,553 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-28 16:54:47,554 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 16:54:47,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 16:54:47,554 INFO L82 PathProgramCache]: Analyzing trace with hash -1733666711, now seen corresponding path program 1 times [2020-10-28 16:54:47,555 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 16:54:47,555 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [126113211] [2020-10-28 16:54:47,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 16:54:47,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:54:47,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:47,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:47,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:50,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:54:50,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-28 16:54:50,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 16:54:50,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2926 [2020-10-28 16:54:50,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:54:50,522 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:54:50,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:54:50,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-10-28 16:54:50,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-28 16:54:50,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:54:51,164 WARN L193 SmtUtils]: Spent 587.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-28 16:54:51,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 16:54:51,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:54:51,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:51,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:54:51,265 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:54:51,265 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:54:51,265 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-28 16:54:51,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:54:51,266 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:54:51,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:54:51,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:54:51,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:54:51,267 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:54:51,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 16:54:51,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:54:51,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:51,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:54:51,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:54:51,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:54:51,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 16:54:51,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:54:51,295 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:54:51,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:54:51,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:54:51,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:54:51,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:54:51,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-28 16:54:51,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:54:51,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:51,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:54:51,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:54:51,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:54:51,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 16:54:51,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:54:51,308 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:54:51,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:54:51,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:54:51,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:54:51,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:54:51,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 16:54:51,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:54:51,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:51,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:54:51,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:54:51,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:54:51,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:54:51,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:54:51,314 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:54:51,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:54:51,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:54:51,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:54:51,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:54:51,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-28 16:54:51,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:54:51,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:51,321 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:54:51,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:54:51,322 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:54:51,322 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:54:51,322 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:54:51,322 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:54:51,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:54:51,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:54:51,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:54:51,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:54:51,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-28 16:54:51,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:54:51,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:51,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:54:51,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:54:51,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:54:51,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:54:51,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:54:51,328 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:54:51,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:54:51,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:54:51,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:54:51,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:54:51,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-28 16:54:51,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:54:51,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:51,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:54:51,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:54:51,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:54:51,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:54:51,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:54:51,335 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:54:51,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:54:51,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:54:51,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:54:51,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-28 16:54:51,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-28 16:54:51,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:54:51,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:51,345 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:54:51,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:54:51,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:54:51,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:54:51,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:54:51,346 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:54:51,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:54:51,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:54:51,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:54:51,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-28 16:54:51,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 16:54:51,363 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [126113211] [2020-10-28 16:54:51,364 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 16:54:51,364 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-28 16:54:51,364 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109109911] [2020-10-28 16:54:51,367 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-28 16:54:51,368 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 16:54:51,369 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-28 16:54:51,369 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-28 16:54:51,370 INFO L87 Difference]: Start difference. First operand 117 states and 137 transitions. Second operand 4 states. [2020-10-28 16:54:52,353 WARN L193 SmtUtils]: Spent 624.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-28 16:54:53,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 16:54:53,813 INFO L93 Difference]: Finished difference Result 202 states and 245 transitions. [2020-10-28 16:54:53,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 16:54:53,814 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 54 [2020-10-28 16:54:53,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 16:54:53,822 INFO L225 Difference]: With dead ends: 202 [2020-10-28 16:54:53,822 INFO L226 Difference]: Without dead ends: 133 [2020-10-28 16:54:53,828 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-28 16:54:53,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2020-10-28 16:54:53,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 108. [2020-10-28 16:54:53,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2020-10-28 16:54:53,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 125 transitions. [2020-10-28 16:54:53,887 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 125 transitions. Word has length 54 [2020-10-28 16:54:53,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 16:54:53,888 INFO L481 AbstractCegarLoop]: Abstraction has 108 states and 125 transitions. [2020-10-28 16:54:53,888 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-28 16:54:53,888 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 125 transitions. [2020-10-28 16:54:53,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-10-28 16:54:53,890 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 16:54:53,890 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] [2020-10-28 16:54:53,891 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-28 16:54:53,891 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 16:54:53,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 16:54:53,892 INFO L82 PathProgramCache]: Analyzing trace with hash -983930435, now seen corresponding path program 1 times [2020-10-28 16:54:53,892 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 16:54:53,892 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [537289252] [2020-10-28 16:54:53,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 16:54:53,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:54:53,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:54,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:55,668 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:54:55,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-10-28 16:54:55,669 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 16:54:55,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1748 [2020-10-28 16:54:55,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:54:55,670 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:54:55,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-28 16:54:55,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:54:55,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-10-28 16:54:55,670 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:54:56,314 WARN L193 SmtUtils]: Spent 580.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-28 16:54:56,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 16:54:56,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:54:56,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:56,440 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:54:56,441 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:54:56,441 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:54:56,441 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-10-28 16:54:56,442 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:54:56,442 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:54:56,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:54:56,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:54:56,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 16:54:56,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:54:56,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 16:54:56,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:54:56,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:56,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:54:56,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:54:56,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:54:56,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:54:56,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:54:56,475 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:54:56,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:54:56,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:54:56,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 16:54:56,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:54:56,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-28 16:54:56,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:54:56,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:56,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:54:56,481 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:54:56,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:54:56,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:54:56,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:54:56,482 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:54:56,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:54:56,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:54:56,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 16:54:56,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:54:56,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 16:54:56,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:54:56,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:56,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:54:56,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:54:56,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:54:56,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 16:54:56,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:54:56,491 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:54:56,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:54:56,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:54:56,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 16:54:56,493 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-28 16:54:56,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-28 16:54:56,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:54:56,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:56,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:54:56,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:54:56,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:54:56,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:54:56,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:54:56,500 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:54:56,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:54:56,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:54:56,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 16:54:56,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:54:56,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-28 16:54:56,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:54:56,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:56,505 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:54:56,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:54:56,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:54:56,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:54:56,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:54:56,507 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:54:56,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:54:56,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:54:56,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:54:56,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:54:56,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-28 16:54:56,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:54:56,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:56,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:54:56,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:54:56,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:54:56,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:54:56,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:54:56,512 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:54:56,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:54:56,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:54:56,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:54:56,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:54:56,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-28 16:54:56,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:54:56,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:56,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:54:56,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:54:56,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:54:56,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 16:54:56,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:54:56,522 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:54:56,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:54:56,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:54:56,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:54:56,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:54:56,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 16:54:56,538 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [537289252] [2020-10-28 16:54:56,538 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 16:54:56,538 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-28 16:54:56,538 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005685534] [2020-10-28 16:54:56,539 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-28 16:54:56,539 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 16:54:56,541 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-28 16:54:56,541 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-28 16:54:56,542 INFO L87 Difference]: Start difference. First operand 108 states and 125 transitions. Second operand 4 states. [2020-10-28 16:54:57,293 WARN L193 SmtUtils]: Spent 613.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-28 16:54:59,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 16:54:59,651 INFO L93 Difference]: Finished difference Result 311 states and 383 transitions. [2020-10-28 16:54:59,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 16:54:59,654 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 58 [2020-10-28 16:54:59,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 16:54:59,657 INFO L225 Difference]: With dead ends: 311 [2020-10-28 16:54:59,657 INFO L226 Difference]: Without dead ends: 227 [2020-10-28 16:54:59,658 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-28 16:54:59,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2020-10-28 16:54:59,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 185. [2020-10-28 16:54:59,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 185 states. [2020-10-28 16:54:59,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 220 transitions. [2020-10-28 16:54:59,763 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 220 transitions. Word has length 58 [2020-10-28 16:54:59,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 16:54:59,763 INFO L481 AbstractCegarLoop]: Abstraction has 185 states and 220 transitions. [2020-10-28 16:54:59,764 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-28 16:54:59,764 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 220 transitions. [2020-10-28 16:54:59,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-10-28 16:54:59,777 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 16:54:59,777 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 16:54:59,777 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-28 16:54:59,778 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 16:54:59,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 16:54:59,778 INFO L82 PathProgramCache]: Analyzing trace with hash 960773619, now seen corresponding path program 1 times [2020-10-28 16:54:59,778 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 16:54:59,780 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1368871041] [2020-10-28 16:54:59,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 16:54:59,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:54:59,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:55:00,610 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:55:00,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-28 16:55:00,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:55:00,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 795 [2020-10-28 16:55:00,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:55:00,612 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:55:00,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-28 16:55:00,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:55:00,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-28 16:55:00,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:55:01,410 WARN L193 SmtUtils]: Spent 624.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-28 16:55:01,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 16:55:01,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:55:01,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:55:01,536 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:55:01,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:55:01,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:55:01,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-10-28 16:55:01,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:55:01,537 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:55:01,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:55:01,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:55:01,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 16:55:01,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:55:01,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 16:55:01,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:55:01,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:55:01,582 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:55:01,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:55:01,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:55:01,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 16:55:01,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:55:01,583 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:55:01,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:55:01,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:55:01,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 16:55:01,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:55:01,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-28 16:55:01,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:55:01,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:55:01,590 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:55:01,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:55:01,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:55:01,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 16:55:01,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:55:01,591 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:55:01,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:55:01,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:55:01,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 16:55:01,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:55:01,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 16:55:01,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:55:01,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:55:01,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:55:01,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:55:01,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:55:01,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 16:55:01,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:55:01,598 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:55:01,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:55:01,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:55:01,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 16:55:01,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:55:01,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-28 16:55:01,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:55:01,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:55:01,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:55:01,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:55:01,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:55:01,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 16:55:01,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:55:01,605 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:55:01,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:55:01,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:55:01,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 16:55:01,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:55:01,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-28 16:55:01,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:55:01,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:55:01,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:55:01,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 16:55:01,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:55:01,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 16:55:01,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:55:01,637 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:55:01,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:55:01,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:55:01,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 16:55:01,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:55:01,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-28 16:55:01,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:55:01,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:55:01,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:55:01,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:55:01,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:55:01,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 16:55:01,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:55:01,646 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:55:01,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:55:01,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:55:01,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 16:55:01,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:55:01,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-28 16:55:01,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:55:01,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:55:01,654 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:55:01,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:55:01,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:55:01,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 16:55:01,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:55:01,655 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:55:01,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 16:55:01,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:55:01,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 16:55:01,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:55:01,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-28 16:55:01,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:55:01,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:55:01,687 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:55:01,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:55:01,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:55:01,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:55:01,689 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:55:01,689 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:55:01,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:55:01,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:55:01,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:55:01,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:55:01,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 16:55:01,713 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1368871041] [2020-10-28 16:55:01,713 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 16:55:01,713 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-28 16:55:01,713 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848901827] [2020-10-28 16:55:01,714 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-28 16:55:01,714 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 16:55:01,715 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-28 16:55:01,716 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-10-28 16:55:01,716 INFO L87 Difference]: Start difference. First operand 185 states and 220 transitions. Second operand 9 states. [2020-10-28 16:55:02,573 WARN L193 SmtUtils]: Spent 625.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-28 16:55:05,264 WARN L193 SmtUtils]: Spent 653.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-28 16:55:06,126 WARN L193 SmtUtils]: Spent 673.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-28 16:55:06,849 WARN L193 SmtUtils]: Spent 666.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-28 16:55:07,569 WARN L193 SmtUtils]: Spent 639.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-28 16:55:08,572 WARN L193 SmtUtils]: Spent 664.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-28 16:55:09,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 16:55:09,986 INFO L93 Difference]: Finished difference Result 584 states and 772 transitions. [2020-10-28 16:55:09,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-28 16:55:09,989 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 64 [2020-10-28 16:55:09,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 16:55:09,995 INFO L225 Difference]: With dead ends: 584 [2020-10-28 16:55:09,995 INFO L226 Difference]: Without dead ends: 423 [2020-10-28 16:55:09,996 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2020-10-28 16:55:09,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2020-10-28 16:55:10,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 348. [2020-10-28 16:55:10,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 348 states. [2020-10-28 16:55:10,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 426 transitions. [2020-10-28 16:55:10,105 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 426 transitions. Word has length 64 [2020-10-28 16:55:10,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 16:55:10,105 INFO L481 AbstractCegarLoop]: Abstraction has 348 states and 426 transitions. [2020-10-28 16:55:10,106 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-28 16:55:10,106 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 426 transitions. [2020-10-28 16:55:10,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-10-28 16:55:10,109 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 16:55:10,109 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 16:55:10,109 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-28 16:55:10,109 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 16:55:10,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 16:55:10,110 INFO L82 PathProgramCache]: Analyzing trace with hash -781460947, now seen corresponding path program 1 times [2020-10-28 16:55:10,110 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 16:55:10,111 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1785472076] [2020-10-28 16:55:10,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 16:55:10,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-28 16:55:10,172 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-28 16:55:10,173 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-28 16:55:10,177 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-28 16:55:10,199 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 04:55:10 BoogieIcfgContainer [2020-10-28 16:55:10,199 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-28 16:55:10,201 INFO L168 Benchmark]: Toolchain (without parser) took 31438.57 ms. Allocated memory was 153.1 MB in the beginning and 395.3 MB in the end (delta: 242.2 MB). Free memory was 127.7 MB in the beginning and 364.8 MB in the end (delta: -237.1 MB). Peak memory consumption was 236.9 MB. Max. memory is 8.0 GB. [2020-10-28 16:55:10,201 INFO L168 Benchmark]: CDTParser took 0.53 ms. Allocated memory is still 153.1 MB. Free memory is still 127.5 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-28 16:55:10,202 INFO L168 Benchmark]: CACSL2BoogieTranslator took 608.85 ms. Allocated memory is still 153.1 MB. Free memory was 127.0 MB in the beginning and 106.3 MB in the end (delta: 20.8 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. [2020-10-28 16:55:10,203 INFO L168 Benchmark]: Boogie Preprocessor took 111.19 ms. Allocated memory is still 153.1 MB. Free memory was 106.3 MB in the beginning and 102.1 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-10-28 16:55:10,204 INFO L168 Benchmark]: RCFGBuilder took 1505.63 ms. Allocated memory is still 153.1 MB. Free memory was 102.1 MB in the beginning and 59.1 MB in the end (delta: 43.0 MB). Peak memory consumption was 43.4 MB. Max. memory is 8.0 GB. [2020-10-28 16:55:10,205 INFO L168 Benchmark]: TraceAbstraction took 29201.72 ms. Allocated memory was 153.1 MB in the beginning and 395.3 MB in the end (delta: 242.2 MB). Free memory was 58.6 MB in the beginning and 364.8 MB in the end (delta: -306.2 MB). Peak memory consumption was 166.2 MB. Max. memory is 8.0 GB. [2020-10-28 16:55:10,208 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.53 ms. Allocated memory is still 153.1 MB. Free memory is still 127.5 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 608.85 ms. Allocated memory is still 153.1 MB. Free memory was 127.0 MB in the beginning and 106.3 MB in the end (delta: 20.8 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 111.19 ms. Allocated memory is still 153.1 MB. Free memory was 106.3 MB in the beginning and 102.1 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1505.63 ms. Allocated memory is still 153.1 MB. Free memory was 102.1 MB in the beginning and 59.1 MB in the end (delta: 43.0 MB). Peak memory consumption was 43.4 MB. Max. memory is 8.0 GB. * TraceAbstraction took 29201.72 ms. Allocated memory was 153.1 MB in the beginning and 395.3 MB in the end (delta: 242.2 MB). Free memory was 58.6 MB in the beginning and 364.8 MB in the end (delta: -306.2 MB). Peak memory consumption was 166.2 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L122] int pumpRunning = 0; [L123] int systemActive = 1; [L560] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L757] int waterLevel = 1; [L758] int methaneLevelCritical = 0; [L846] int cleanupTimeShifts = 4; [L919] int retValue_acc ; [L920] int tmp ; [L924] FCALL select_helpers() [L925] FCALL select_features() [L926] CALL, EXPR valid_product() [L382] int retValue_acc ; [L385] retValue_acc = 1 [L386] return (retValue_acc); [L926] RET, EXPR valid_product() [L926] tmp = valid_product() [L928] COND TRUE \read(tmp) [L930] FCALL setup() [L931] CALL runTest() [L913] CALL test() [L48] int splverifierCounter ; [L49] int tmp ; [L50] int tmp___0 ; [L51] int tmp___1 ; [L52] int tmp___2 ; [L55] splverifierCounter = 0 [L57] COND TRUE 1 [L59] COND TRUE splverifierCounter < 4 [L65] tmp = __VERIFIER_nondet_int() [L67] COND TRUE \read(tmp) [L69] CALL waterRise() [L775] COND TRUE waterLevel < 2 [L776] waterLevel = waterLevel + 1 [L69] RET waterRise() [L75] tmp___0 = __VERIFIER_nondet_int() [L77] COND FALSE !(\read(tmp___0)) [L85] tmp___2 = __VERIFIER_nondet_int() [L87] COND FALSE !(\read(tmp___2)) [L91] tmp___1 = __VERIFIER_nondet_int() [L93] COND TRUE \read(tmp___1) [L95] CALL stopSystem() [L296] COND FALSE !(\read(pumpRunning)) [L303] systemActive = 0 [L95] RET stopSystem() [L102] CALL timeShift() [L130] COND FALSE !(\read(pumpRunning)) [L137] COND FALSE !(\read(systemActive)) [L145] CALL __utac_acc__Specification3_spec__1() [L311] int tmp ; [L312] int tmp___0 ; [L313] int tmp___1 ; [L317] CALL, EXPR isMethaneLevelCritical() [L796] int retValue_acc ; [L799] retValue_acc = methaneLevelCritical [L800] return (retValue_acc); [L317] RET, EXPR isMethaneLevelCritical() [L317] tmp = isMethaneLevelCritical() [L319] COND FALSE !(\read(tmp)) [L323] CALL, EXPR getWaterLevel() [L828] int retValue_acc ; [L831] retValue_acc = waterLevel [L832] return (retValue_acc); [L323] RET, EXPR getWaterLevel() [L323] tmp___0 = getWaterLevel() [L325] COND TRUE tmp___0 == 2 [L327] CALL, EXPR isPumpRunning() [L229] int retValue_acc ; [L232] retValue_acc = pumpRunning [L233] return (retValue_acc); [L327] RET, EXPR isPumpRunning() [L327] tmp___1 = isPumpRunning() [L329] COND FALSE !(\read(tmp___1)) [L333] CALL __automaton_fail() [L348] CALL reach_error() [L3] __assert_fail("0", "minepump_spec3_product27.cil.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 40 procedures, 242 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 29.1s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 15.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 439 SDtfs, 579 SDslu, 254 SDs, 0 SdLazy, 1234 SolverSat, 332 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 95 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 7.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=348occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 4 MinimizatonAttempts, 174 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 12.2s InterpolantComputationTime, 297 NumberOfCodeBlocks, 297 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 225 ConstructedInterpolants, 0 QuantifiedInterpolants, 68212 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...