/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.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product35.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-23 23:59:03,254 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 23:59:03,258 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 23:59:03,314 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-23 23:59:03,315 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-23 23:59:03,319 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-23 23:59:03,323 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-23 23:59:03,330 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-23 23:59:03,334 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-23 23:59:03,340 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-23 23:59:03,342 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-23 23:59:03,343 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-23 23:59:03,344 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-23 23:59:03,347 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-23 23:59:03,349 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-23 23:59:03,351 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-23 23:59:03,352 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-23 23:59:03,356 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-23 23:59:03,382 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-23 23:59:03,390 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-23 23:59:03,392 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-23 23:59:03,393 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-23 23:59:03,395 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-23 23:59:03,397 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-23 23:59:03,407 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-23 23:59:03,407 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-23 23:59:03,408 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-23 23:59:03,410 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-23 23:59:03,410 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-23 23:59:03,412 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-23 23:59:03,412 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-23 23:59:03,413 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-23 23:59:03,415 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-23 23:59:03,416 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-23 23:59:03,417 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-23 23:59:03,417 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-23 23:59:03,418 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-23 23:59:03,418 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-23 23:59:03,419 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-23 23:59:03,420 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-23 23:59:03,420 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-23 23:59:03,421 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-10-23 23:59:03,443 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 23:59:03,444 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 23:59:03,448 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 23:59:03,448 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 23:59:03,448 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 23:59:03,449 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 23:59:03,449 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 23:59:03,449 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 23:59:03,449 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 23:59:03,450 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 23:59:03,451 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 23:59:03,451 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 23:59:03,452 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 23:59:03,452 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 23:59:03,452 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 23:59:03,453 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-10-23 23:59:03,453 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 23:59:03,453 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 23:59:03,453 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 23:59:03,454 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 23:59:03,454 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-10-23 23:59:03,454 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 23:59:03,455 INFO L138 SettingsManager]: * Use separate solver for trace checks=false 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/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-10-23 23:59:03,833 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 23:59:03,870 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 23:59:03,874 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 23:59:03,875 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 23:59:03,876 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 23:59:03,877 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product35.cil.c [2020-10-23 23:59:03,970 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9301ced53/7c65f0b029ad44cdb2aa3ae41aad535f/FLAG5f1144d9a [2020-10-23 23:59:04,761 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 23:59:04,767 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product35.cil.c [2020-10-23 23:59:04,786 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9301ced53/7c65f0b029ad44cdb2aa3ae41aad535f/FLAG5f1144d9a [2020-10-23 23:59:05,011 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9301ced53/7c65f0b029ad44cdb2aa3ae41aad535f [2020-10-23 23:59:05,014 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 23:59:05,021 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 23:59:05,023 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 23:59:05,023 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 23:59:05,027 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 23:59:05,028 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 11:59:05" (1/1) ... [2020-10-23 23:59:05,031 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41ea4a01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:59:05, skipping insertion in model container [2020-10-23 23:59:05,032 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 11:59:05" (1/1) ... [2020-10-23 23:59:05,040 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 23:59:05,079 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 23:59:05,457 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 23:59:05,482 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 23:59:05,589 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 23:59:05,628 INFO L208 MainTranslator]: Completed translation [2020-10-23 23:59:05,629 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:59:05 WrapperNode [2020-10-23 23:59:05,629 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 23:59:05,630 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 23:59:05,630 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 23:59:05,630 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 23:59:05,643 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:59:05" (1/1) ... [2020-10-23 23:59:05,644 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:59:05" (1/1) ... [2020-10-23 23:59:05,663 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:59:05" (1/1) ... [2020-10-23 23:59:05,663 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:59:05" (1/1) ... [2020-10-23 23:59:05,717 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:59:05" (1/1) ... [2020-10-23 23:59:05,727 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:59:05" (1/1) ... [2020-10-23 23:59:05,732 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:59:05" (1/1) ... [2020-10-23 23:59:05,740 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 23:59:05,741 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 23:59:05,741 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 23:59:05,741 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 23:59:05,742 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:59:05" (1/1) ... No working directory specified, using /storage/repos/ultimate/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 [2020-10-23 23:59:05,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 23:59:05,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 23:59:05,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-23 23:59:05,822 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 23:59:05,822 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-23 23:59:05,822 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-23 23:59:05,822 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-10-23 23:59:05,823 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-23 23:59:05,823 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-23 23:59:05,823 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-23 23:59:05,823 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-23 23:59:05,823 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-23 23:59:05,824 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-23 23:59:05,824 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-10-23 23:59:05,842 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-10-23 23:59:05,842 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-10-23 23:59:05,843 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-23 23:59:05,843 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-23 23:59:05,844 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-23 23:59:05,845 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-23 23:59:05,845 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 23:59:05,845 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-23 23:59:05,848 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-23 23:59:05,848 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-23 23:59:05,848 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-23 23:59:05,848 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-23 23:59:05,849 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-23 23:59:05,849 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-10-23 23:59:05,849 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-23 23:59:05,850 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-23 23:59:05,850 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-23 23:59:05,850 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-23 23:59:05,854 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-23 23:59:05,854 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-23 23:59:05,854 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-23 23:59:05,855 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-23 23:59:05,855 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-23 23:59:05,855 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-23 23:59:05,855 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-23 23:59:05,855 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 23:59:05,855 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 23:59:05,855 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 23:59:05,856 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 23:59:05,856 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-23 23:59:05,856 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-23 23:59:05,856 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-23 23:59:05,856 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-23 23:59:05,857 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-10-23 23:59:05,857 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-23 23:59:05,857 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-23 23:59:05,857 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-23 23:59:05,857 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-23 23:59:05,857 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-23 23:59:05,857 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-23 23:59:05,857 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-10-23 23:59:05,858 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-23 23:59:05,858 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-23 23:59:05,858 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-23 23:59:05,858 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-23 23:59:05,858 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-10-23 23:59:05,858 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-23 23:59:05,858 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-10-23 23:59:05,859 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-10-23 23:59:05,859 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-23 23:59:05,859 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-23 23:59:05,859 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-23 23:59:05,859 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-23 23:59:05,859 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-23 23:59:05,859 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-23 23:59:05,860 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-23 23:59:05,860 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-23 23:59:05,860 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-23 23:59:05,861 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 23:59:05,861 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-23 23:59:05,861 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-23 23:59:05,861 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-23 23:59:05,861 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-23 23:59:05,861 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-23 23:59:05,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-23 23:59:05,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 23:59:05,862 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-23 23:59:05,863 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-23 23:59:05,863 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 23:59:05,863 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-23 23:59:05,864 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-23 23:59:05,864 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 23:59:05,864 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-23 23:59:05,865 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-23 23:59:05,865 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-23 23:59:05,866 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 23:59:05,866 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 23:59:05,866 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 23:59:07,275 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 23:59:07,276 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-23 23:59:07,278 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 11:59:07 BoogieIcfgContainer [2020-10-23 23:59:07,279 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 23:59:07,280 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 23:59:07,281 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 23:59:07,284 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 23:59:07,284 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 11:59:05" (1/3) ... [2020-10-23 23:59:07,285 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58bc26d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 11:59:07, skipping insertion in model container [2020-10-23 23:59:07,285 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:59:05" (2/3) ... [2020-10-23 23:59:07,286 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58bc26d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 11:59:07, skipping insertion in model container [2020-10-23 23:59:07,286 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 11:59:07" (3/3) ... [2020-10-23 23:59:07,287 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product35.cil.c [2020-10-23 23:59:07,299 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-23 23:59:07,305 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-23 23:59:07,318 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-23 23:59:07,342 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 23:59:07,342 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 23:59:07,342 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-23 23:59:07,343 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 23:59:07,343 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 23:59:07,343 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 23:59:07,343 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 23:59:07,343 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 23:59:07,366 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states. [2020-10-23 23:59:07,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2020-10-23 23:59:07,387 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 23:59:07,388 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 23:59:07,389 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]=== [2020-10-23 23:59:07,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 23:59:07,395 INFO L82 PathProgramCache]: Analyzing trace with hash 242518070, now seen corresponding path program 1 times [2020-10-23 23:59:07,405 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 23:59:07,405 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1888950745] [2020-10-23 23:59:07,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 23:59:07,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:08,157 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 23:59:08,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 23:59:08,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:08,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 23:59:08,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:08,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 23:59:08,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:08,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 23:59:08,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:08,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 23:59:08,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:08,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-23 23:59:08,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:08,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-23 23:59:08,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:08,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-10-23 23:59:08,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:08,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 23:59:08,327 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1888950745] [2020-10-23 23:59:08,329 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 23:59:08,329 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-23 23:59:08,330 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881721256] [2020-10-23 23:59:08,335 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-23 23:59:08,336 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 23:59:08,349 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-23 23:59:08,350 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-23 23:59:08,352 INFO L87 Difference]: Start difference. First operand 313 states. Second operand 3 states. [2020-10-23 23:59:09,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 23:59:09,823 INFO L93 Difference]: Finished difference Result 471 states and 559 transitions. [2020-10-23 23:59:09,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-23 23:59:09,825 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 159 [2020-10-23 23:59:09,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 23:59:09,843 INFO L225 Difference]: With dead ends: 471 [2020-10-23 23:59:09,843 INFO L226 Difference]: Without dead ends: 294 [2020-10-23 23:59:09,849 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-23 23:59:09,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2020-10-23 23:59:10,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 253. [2020-10-23 23:59:10,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 253 states. [2020-10-23 23:59:10,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 273 transitions. [2020-10-23 23:59:10,006 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 273 transitions. Word has length 159 [2020-10-23 23:59:10,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 23:59:10,007 INFO L481 AbstractCegarLoop]: Abstraction has 253 states and 273 transitions. [2020-10-23 23:59:10,007 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-23 23:59:10,007 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 273 transitions. [2020-10-23 23:59:10,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-10-23 23:59:10,013 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 23:59:10,013 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 23:59:10,013 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 23:59:10,014 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]=== [2020-10-23 23:59:10,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 23:59:10,015 INFO L82 PathProgramCache]: Analyzing trace with hash -980635980, now seen corresponding path program 1 times [2020-10-23 23:59:10,015 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 23:59:10,015 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1163694499] [2020-10-23 23:59:10,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 23:59:10,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:10,420 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 23:59:10,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 23:59:10,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:10,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 23:59:10,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:10,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 23:59:10,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:10,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 23:59:10,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:10,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 23:59:10,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:10,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-23 23:59:10,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:10,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-23 23:59:10,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:10,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-10-23 23:59:10,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:10,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 23:59:10,521 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1163694499] [2020-10-23 23:59:10,521 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 23:59:10,522 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-23 23:59:10,522 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993458926] [2020-10-23 23:59:10,523 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-23 23:59:10,524 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 23:59:10,524 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-23 23:59:10,525 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-23 23:59:10,525 INFO L87 Difference]: Start difference. First operand 253 states and 273 transitions. Second operand 4 states. [2020-10-23 23:59:11,304 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 23:59:12,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 23:59:12,293 INFO L93 Difference]: Finished difference Result 376 states and 420 transitions. [2020-10-23 23:59:12,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-23 23:59:12,293 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 160 [2020-10-23 23:59:12,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 23:59:12,298 INFO L225 Difference]: With dead ends: 376 [2020-10-23 23:59:12,298 INFO L226 Difference]: Without dead ends: 277 [2020-10-23 23:59:12,300 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-23 23:59:12,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2020-10-23 23:59:12,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 243. [2020-10-23 23:59:12,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 243 states. [2020-10-23 23:59:12,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 260 transitions. [2020-10-23 23:59:12,406 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 260 transitions. Word has length 160 [2020-10-23 23:59:12,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 23:59:12,407 INFO L481 AbstractCegarLoop]: Abstraction has 243 states and 260 transitions. [2020-10-23 23:59:12,407 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-23 23:59:12,407 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 260 transitions. [2020-10-23 23:59:12,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2020-10-23 23:59:12,410 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 23:59:12,410 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 23:59:12,410 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-23 23:59:12,410 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]=== [2020-10-23 23:59:12,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 23:59:12,411 INFO L82 PathProgramCache]: Analyzing trace with hash 1871629372, now seen corresponding path program 1 times [2020-10-23 23:59:12,411 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 23:59:12,412 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [430898554] [2020-10-23 23:59:12,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 23:59:12,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:12,810 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 23:59:12,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 23:59:12,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:12,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 23:59:12,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:12,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 23:59:12,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:12,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 23:59:12,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:12,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 23:59:12,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:12,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-23 23:59:12,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:12,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-10-23 23:59:12,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:12,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2020-10-23 23:59:12,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:12,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 23:59:12,972 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [430898554] [2020-10-23 23:59:12,972 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 23:59:12,973 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-23 23:59:12,973 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659540571] [2020-10-23 23:59:12,974 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-23 23:59:12,974 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 23:59:12,974 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-23 23:59:12,975 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-23 23:59:12,975 INFO L87 Difference]: Start difference. First operand 243 states and 260 transitions. Second operand 9 states. [2020-10-23 23:59:13,588 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 23:59:13,926 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 23:59:14,217 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 23:59:14,473 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 23:59:14,783 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 23:59:15,073 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 23:59:16,009 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 23:59:17,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 23:59:17,884 INFO L93 Difference]: Finished difference Result 638 states and 728 transitions. [2020-10-23 23:59:17,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-23 23:59:17,890 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 169 [2020-10-23 23:59:17,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 23:59:17,895 INFO L225 Difference]: With dead ends: 638 [2020-10-23 23:59:17,896 INFO L226 Difference]: Without dead ends: 510 [2020-10-23 23:59:17,898 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2020-10-23 23:59:17,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 510 states. [2020-10-23 23:59:18,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 510 to 433. [2020-10-23 23:59:18,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 433 states. [2020-10-23 23:59:18,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 433 states to 433 states and 478 transitions. [2020-10-23 23:59:18,149 INFO L78 Accepts]: Start accepts. Automaton has 433 states and 478 transitions. Word has length 169 [2020-10-23 23:59:18,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 23:59:18,151 INFO L481 AbstractCegarLoop]: Abstraction has 433 states and 478 transitions. [2020-10-23 23:59:18,151 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-23 23:59:18,151 INFO L276 IsEmpty]: Start isEmpty. Operand 433 states and 478 transitions. [2020-10-23 23:59:18,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-10-23 23:59:18,159 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 23:59:18,159 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 23:59:18,160 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-23 23:59:18,160 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]=== [2020-10-23 23:59:18,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 23:59:18,161 INFO L82 PathProgramCache]: Analyzing trace with hash 122403665, now seen corresponding path program 1 times [2020-10-23 23:59:18,161 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 23:59:18,162 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [199887762] [2020-10-23 23:59:18,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 23:59:18,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:18,521 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 23:59:18,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 23:59:18,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:18,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 23:59:18,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:18,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 23:59:18,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:18,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 23:59:18,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:18,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 23:59:18,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:18,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-10-23 23:59:18,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:18,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 23:59:18,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:18,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-10-23 23:59:18,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:18,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-10-23 23:59:18,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:18,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2020-10-23 23:59:18,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:18,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 23:59:18,679 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [199887762] [2020-10-23 23:59:18,680 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 23:59:18,680 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-23 23:59:18,680 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111271090] [2020-10-23 23:59:18,682 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-23 23:59:18,682 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 23:59:18,683 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-23 23:59:18,684 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-23 23:59:18,684 INFO L87 Difference]: Start difference. First operand 433 states and 478 transitions. Second operand 6 states. [2020-10-23 23:59:19,180 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 23:59:20,834 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 23:59:21,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 23:59:21,514 INFO L93 Difference]: Finished difference Result 1103 states and 1286 transitions. [2020-10-23 23:59:21,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-23 23:59:21,515 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 177 [2020-10-23 23:59:21,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 23:59:21,522 INFO L225 Difference]: With dead ends: 1103 [2020-10-23 23:59:21,522 INFO L226 Difference]: Without dead ends: 785 [2020-10-23 23:59:21,526 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-10-23 23:59:21,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 785 states. [2020-10-23 23:59:21,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 785 to 667. [2020-10-23 23:59:21,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 667 states. [2020-10-23 23:59:21,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 667 states to 667 states and 736 transitions. [2020-10-23 23:59:21,894 INFO L78 Accepts]: Start accepts. Automaton has 667 states and 736 transitions. Word has length 177 [2020-10-23 23:59:21,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 23:59:21,895 INFO L481 AbstractCegarLoop]: Abstraction has 667 states and 736 transitions. [2020-10-23 23:59:21,895 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-23 23:59:21,895 INFO L276 IsEmpty]: Start isEmpty. Operand 667 states and 736 transitions. [2020-10-23 23:59:21,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2020-10-23 23:59:21,898 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 23:59:21,898 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 23:59:21,898 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-23 23:59:21,898 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]=== [2020-10-23 23:59:21,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 23:59:21,899 INFO L82 PathProgramCache]: Analyzing trace with hash 782034493, now seen corresponding path program 1 times [2020-10-23 23:59:21,899 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 23:59:21,899 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1857168253] [2020-10-23 23:59:21,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 23:59:21,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:22,207 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 23:59:22,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 23:59:22,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:22,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 23:59:22,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:22,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 23:59:22,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:22,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 23:59:22,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:22,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 23:59:22,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:22,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-23 23:59:22,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:22,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-10-23 23:59:22,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:22,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-10-23 23:59:22,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:22,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2020-10-23 23:59:22,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:22,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 23:59:22,372 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1857168253] [2020-10-23 23:59:22,373 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 23:59:22,373 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-23 23:59:22,373 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998655746] [2020-10-23 23:59:22,374 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-23 23:59:22,374 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 23:59:22,374 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-23 23:59:22,375 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-23 23:59:22,375 INFO L87 Difference]: Start difference. First operand 667 states and 736 transitions. Second operand 9 states. [2020-10-23 23:59:22,877 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 23:59:24,289 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 23:59:24,596 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 23:59:24,935 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 23:59:25,298 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 23:59:25,563 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 23:59:25,861 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 23:59:26,146 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 23:59:27,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 23:59:27,422 INFO L93 Difference]: Finished difference Result 1705 states and 1982 transitions. [2020-10-23 23:59:27,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-23 23:59:27,425 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 178 [2020-10-23 23:59:27,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 23:59:27,437 INFO L225 Difference]: With dead ends: 1705 [2020-10-23 23:59:27,437 INFO L226 Difference]: Without dead ends: 1153 [2020-10-23 23:59:27,440 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-10-23 23:59:27,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1153 states. [2020-10-23 23:59:27,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1153 to 1070. [2020-10-23 23:59:27,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1070 states. [2020-10-23 23:59:27,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1070 states to 1070 states and 1197 transitions. [2020-10-23 23:59:27,989 INFO L78 Accepts]: Start accepts. Automaton has 1070 states and 1197 transitions. Word has length 178 [2020-10-23 23:59:27,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 23:59:27,990 INFO L481 AbstractCegarLoop]: Abstraction has 1070 states and 1197 transitions. [2020-10-23 23:59:27,990 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-23 23:59:27,990 INFO L276 IsEmpty]: Start isEmpty. Operand 1070 states and 1197 transitions. [2020-10-23 23:59:27,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2020-10-23 23:59:27,994 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 23:59:27,994 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 23:59:27,994 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-23 23:59:27,995 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 23:59:27,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 23:59:27,995 INFO L82 PathProgramCache]: Analyzing trace with hash 1594184124, now seen corresponding path program 1 times [2020-10-23 23:59:27,995 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 23:59:27,996 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1423308388] [2020-10-23 23:59:27,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 23:59:28,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 23:59:28,071 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 23:59:28,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 23:59:28,144 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 23:59:28,338 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-23 23:59:28,338 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-23 23:59:28,338 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-23 23:59:28,623 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 11:59:28 BoogieIcfgContainer [2020-10-23 23:59:28,623 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-23 23:59:28,626 INFO L168 Benchmark]: Toolchain (without parser) took 23608.11 ms. Allocated memory was 151.0 MB in the beginning and 594.5 MB in the end (delta: 443.5 MB). Free memory was 125.6 MB in the beginning and 428.8 MB in the end (delta: -303.2 MB). Peak memory consumption was 141.1 MB. Max. memory is 8.0 GB. [2020-10-23 23:59:28,627 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 151.0 MB. Free memory is still 124.6 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 23:59:28,634 INFO L168 Benchmark]: CACSL2BoogieTranslator took 606.21 ms. Allocated memory is still 151.0 MB. Free memory was 124.9 MB in the beginning and 104.1 MB in the end (delta: 20.8 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. [2020-10-23 23:59:28,635 INFO L168 Benchmark]: Boogie Preprocessor took 110.10 ms. Allocated memory is still 151.0 MB. Free memory was 104.1 MB in the beginning and 100.3 MB in the end (delta: 3.8 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-10-23 23:59:28,636 INFO L168 Benchmark]: RCFGBuilder took 1537.68 ms. Allocated memory was 151.0 MB in the beginning and 190.8 MB in the end (delta: 39.8 MB). Free memory was 100.3 MB in the beginning and 126.0 MB in the end (delta: -25.6 MB). Peak memory consumption was 28.2 MB. Max. memory is 8.0 GB. [2020-10-23 23:59:28,636 INFO L168 Benchmark]: TraceAbstraction took 21342.47 ms. Allocated memory was 190.8 MB in the beginning and 594.5 MB in the end (delta: 403.7 MB). Free memory was 126.0 MB in the beginning and 428.8 MB in the end (delta: -302.8 MB). Peak memory consumption was 100.4 MB. Max. memory is 8.0 GB. [2020-10-23 23:59:28,648 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 151.0 MB. Free memory is still 124.6 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 606.21 ms. Allocated memory is still 151.0 MB. Free memory was 124.9 MB in the beginning and 104.1 MB in the end (delta: 20.8 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 110.10 ms. Allocated memory is still 151.0 MB. Free memory was 104.1 MB in the beginning and 100.3 MB in the end (delta: 3.8 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1537.68 ms. Allocated memory was 151.0 MB in the beginning and 190.8 MB in the end (delta: 39.8 MB). Free memory was 100.3 MB in the beginning and 126.0 MB in the end (delta: -25.6 MB). Peak memory consumption was 28.2 MB. Max. memory is 8.0 GB. * TraceAbstraction took 21342.47 ms. Allocated memory was 190.8 MB in the beginning and 594.5 MB in the end (delta: 403.7 MB). Free memory was 126.0 MB in the beginning and 428.8 MB in the end (delta: -302.8 MB). Peak memory consumption was 100.4 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L122] int pumpRunning = 0; VAL [\old(cleanupTimeShifts)=174, \old(head)=182, \old(head)=164, \old(methaneLevelCritical)=146, \old(pumpRunning)=142, \old(systemActive)=141, \old(waterLevel)=145, cleanupTimeShifts=174, head={182:164}, methaneLevelCritical=146, pumpRunning=0, systemActive=141, waterLevel=145] [L123] int systemActive = 1; VAL [\old(cleanupTimeShifts)=174, \old(head)=182, \old(head)=164, \old(methaneLevelCritical)=146, \old(pumpRunning)=142, \old(systemActive)=141, \old(waterLevel)=145, cleanupTimeShifts=174, head={182:164}, methaneLevelCritical=146, pumpRunning=0, systemActive=1, waterLevel=145] [L326] int cleanupTimeShifts = 4; VAL [\old(cleanupTimeShifts)=174, \old(head)=164, \old(head)=182, \old(methaneLevelCritical)=146, \old(pumpRunning)=142, \old(systemActive)=141, \old(waterLevel)=145, cleanupTimeShifts=4, head={182:164}, methaneLevelCritical=146, pumpRunning=0, systemActive=1, waterLevel=145] [L425] int waterLevel = 1; VAL [\old(cleanupTimeShifts)=174, \old(head)=164, \old(head)=182, \old(methaneLevelCritical)=146, \old(pumpRunning)=142, \old(systemActive)=141, \old(waterLevel)=145, cleanupTimeShifts=4, head={182:164}, methaneLevelCritical=146, pumpRunning=0, systemActive=1, waterLevel=1] [L426] int methaneLevelCritical = 0; VAL [\old(cleanupTimeShifts)=174, \old(head)=182, \old(head)=164, \old(methaneLevelCritical)=146, \old(pumpRunning)=142, \old(systemActive)=141, \old(waterLevel)=145, cleanupTimeShifts=4, head={182:164}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L732] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [\old(cleanupTimeShifts)=174, \old(head)=182, \old(head)=164, \old(methaneLevelCritical)=146, \old(pumpRunning)=142, \old(systemActive)=141, \old(waterLevel)=145, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L402] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L403] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L407] FCALL select_helpers() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L408] FCALL select_features() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L409] CALL, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L545] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L548] retValue_acc = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L549] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L409] RET, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L409] tmp = valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, valid_product()=1, waterLevel=1] [L411] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L413] FCALL setup() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L414] CALL runTest() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L393] CALL test() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L48] int splverifierCounter ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L49] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L50] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L51] int tmp___1 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L52] int tmp___2 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L55] splverifierCounter = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L57] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L59] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L65] tmp = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, __VERIFIER_nondet_int()=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L67] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L69] CALL waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L443] COND TRUE waterLevel < 2 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L444] waterLevel = waterLevel + 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L69] RET waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L75] tmp___0 = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, __VERIFIER_nondet_int()=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2] [L77] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2] [L85] tmp___2 = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, __VERIFIER_nondet_int()=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=0, waterLevel=2] [L87] COND FALSE !(\read(tmp___2)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=0, waterLevel=2] [L91] tmp___1 = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, __VERIFIER_nondet_int()=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L93] COND TRUE \read(tmp___1) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L95] CALL stopSystem() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L278] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L285] systemActive = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L95] RET stopSystem() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=0, tmp=1, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L102] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L130] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L137] COND FALSE !(\read(systemActive)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L145] CALL __utac_acc__Specification3_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L293] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L294] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L295] int tmp___1 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L299] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L464] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L467] retValue_acc = methaneLevelCritical VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=0, waterLevel=2] [L468] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=0, waterLevel=2] [L299] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L299] tmp = isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, waterLevel=2] [L301] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, waterLevel=2] [L305] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L496] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L499] retValue_acc = waterLevel VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=2, systemActive=0, waterLevel=2] [L500] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=2, systemActive=0, waterLevel=2] [L305] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=2, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, waterLevel=2] [L305] tmp___0 = getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=2, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, tmp___0=2, waterLevel=2] [L307] COND TRUE tmp___0 == 2 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, tmp___0=2, waterLevel=2] [L309] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L211] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L214] retValue_acc = pumpRunning VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=0, waterLevel=2] [L215] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=0, waterLevel=2] [L309] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, tmp___0=2, waterLevel=2] [L309] tmp___1 = isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, tmp___0=2, tmp___1=0, waterLevel=2] [L311] COND FALSE !(\read(tmp___1)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, tmp___0=2, tmp___1=0, waterLevel=2] [L315] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L558] CALL reach_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L3] __assert_fail("0", "minepump_spec3_product35.cil.c", 3, "reach_error") VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 39 procedures, 631 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 20.9s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 16.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1208 SDtfs, 1714 SDslu, 1558 SDs, 0 SdLazy, 3305 SolverSat, 556 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 148 GetRequests, 104 SyntacticMatches, 1 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 6.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1070occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.4s AutomataMinimizationTime, 5 MinimizatonAttempts, 353 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 1026 NumberOfCodeBlocks, 1026 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 838 ConstructedInterpolants, 0 QuantifiedInterpolants, 370794 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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...