/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 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product27.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-b7b32d2 [2021-02-19 17:04:29,358 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-19 17:04:29,361 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-19 17:04:29,398 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-19 17:04:29,399 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-19 17:04:29,400 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-19 17:04:29,402 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-19 17:04:29,412 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-19 17:04:29,414 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-19 17:04:29,416 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-19 17:04:29,417 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-19 17:04:29,419 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-19 17:04:29,419 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-19 17:04:29,421 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-19 17:04:29,422 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-19 17:04:29,423 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-19 17:04:29,425 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-19 17:04:29,426 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-19 17:04:29,428 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-19 17:04:29,432 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-19 17:04:29,436 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-19 17:04:29,438 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-19 17:04:29,440 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-19 17:04:29,441 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-19 17:04:29,444 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-02-19 17:04:29,445 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-02-19 17:04:29,445 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-02-19 17:04:29,446 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-02-19 17:04:29,447 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-02-19 17:04:29,448 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-02-19 17:04:29,448 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-02-19 17:04:29,449 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-02-19 17:04:29,450 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-02-19 17:04:29,451 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-02-19 17:04:29,453 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-02-19 17:04:29,453 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-02-19 17:04:29,454 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-02-19 17:04:29,455 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-02-19 17:04:29,455 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-19 17:04:29,456 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-19 17:04:29,457 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-19 17:04:29,460 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2021-02-19 17:04:29,487 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-19 17:04:29,488 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-19 17:04:29,490 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-02-19 17:04:29,490 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-02-19 17:04:29,490 INFO L138 SettingsManager]: * Use SBE=true [2021-02-19 17:04:29,490 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-19 17:04:29,491 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-19 17:04:29,491 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-19 17:04:29,491 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-19 17:04:29,491 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-19 17:04:29,491 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-19 17:04:29,492 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-19 17:04:29,492 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-19 17:04:29,492 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-19 17:04:29,492 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-19 17:04:29,492 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-19 17:04:29,493 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-19 17:04:29,493 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-19 17:04:29,493 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-02-19 17:04:29,493 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-19 17:04:29,493 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-19 17:04:29,494 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-19 17:04:29,494 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-02-19 17:04:29,494 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-02-19 17:04:29,494 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-02-19 17:04:29,494 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-02-19 17:04:29,494 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-19 17:04:29,495 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-02-19 17:04:29,495 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-19 17:04:29,929 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-19 17:04:29,958 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-19 17:04:29,961 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-19 17:04:29,963 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-19 17:04:29,964 INFO L275 PluginConnector]: CDTParser initialized [2021-02-19 17:04:29,965 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product27.cil.c [2021-02-19 17:04:30,052 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2c4304092/afb04cdf08db408da1e2ed5c54087745/FLAG366759641 [2021-02-19 17:04:30,885 INFO L306 CDTParser]: Found 1 translation units. [2021-02-19 17:04:30,892 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product27.cil.c [2021-02-19 17:04:30,910 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2c4304092/afb04cdf08db408da1e2ed5c54087745/FLAG366759641 [2021-02-19 17:04:31,108 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2c4304092/afb04cdf08db408da1e2ed5c54087745 [2021-02-19 17:04:31,111 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-19 17:04:31,124 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-19 17:04:31,126 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-19 17:04:31,126 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-19 17:04:31,131 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-19 17:04:31,132 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.02 05:04:31" (1/1) ... [2021-02-19 17:04:31,133 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c238b9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:04:31, skipping insertion in model container [2021-02-19 17:04:31,133 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.02 05:04:31" (1/1) ... [2021-02-19 17:04:31,142 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-19 17:04:31,180 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-19 17:04:31,390 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product27.cil.c[5284,5297] [2021-02-19 17:04:31,493 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-19 17:04:31,519 INFO L203 MainTranslator]: Completed pre-run [2021-02-19 17:04:31,594 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product27.cil.c[5284,5297] [2021-02-19 17:04:31,669 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-19 17:04:31,715 INFO L208 MainTranslator]: Completed translation [2021-02-19 17:04:31,716 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:04:31 WrapperNode [2021-02-19 17:04:31,716 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-19 17:04:31,718 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-19 17:04:31,718 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-19 17:04:31,718 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-19 17:04:31,735 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:04:31" (1/1) ... [2021-02-19 17:04:31,736 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:04:31" (1/1) ... [2021-02-19 17:04:31,760 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:04:31" (1/1) ... [2021-02-19 17:04:31,761 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:04:31" (1/1) ... [2021-02-19 17:04:31,794 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:04:31" (1/1) ... [2021-02-19 17:04:31,804 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:04:31" (1/1) ... [2021-02-19 17:04:31,810 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:04:31" (1/1) ... [2021-02-19 17:04:31,818 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-19 17:04:31,820 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-19 17:04:31,820 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-19 17:04:31,820 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-19 17:04:31,821 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:04:31" (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 [2021-02-19 17:04:31,936 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-19 17:04:31,965 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-19 17:04:31,965 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2021-02-19 17:04:31,965 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-19 17:04:31,966 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2021-02-19 17:04:31,966 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-02-19 17:04:31,966 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2021-02-19 17:04:31,966 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2021-02-19 17:04:31,966 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2021-02-19 17:04:31,967 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2021-02-19 17:04:31,967 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2021-02-19 17:04:31,967 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2021-02-19 17:04:31,967 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2021-02-19 17:04:31,967 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2021-02-19 17:04:31,967 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2021-02-19 17:04:31,968 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2021-02-19 17:04:31,968 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2021-02-19 17:04:31,968 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2021-02-19 17:04:31,968 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2021-02-19 17:04:31,968 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2021-02-19 17:04:31,968 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2021-02-19 17:04:31,969 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2021-02-19 17:04:31,969 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2021-02-19 17:04:31,969 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2021-02-19 17:04:31,969 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2021-02-19 17:04:31,969 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2021-02-19 17:04:31,970 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2021-02-19 17:04:31,970 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2021-02-19 17:04:31,970 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2021-02-19 17:04:31,974 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-02-19 17:04:31,974 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-02-19 17:04:31,975 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2021-02-19 17:04:31,975 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2021-02-19 17:04:31,975 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2021-02-19 17:04:31,975 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2021-02-19 17:04:31,975 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-02-19 17:04:31,975 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2021-02-19 17:04:31,976 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2021-02-19 17:04:31,976 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2021-02-19 17:04:31,978 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-19 17:04:31,978 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-19 17:04:31,979 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-19 17:04:31,979 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-19 17:04:31,979 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-19 17:04:31,979 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-19 17:04:31,979 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2021-02-19 17:04:31,979 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-02-19 17:04:31,980 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-02-19 17:04:31,980 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2021-02-19 17:04:31,983 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-02-19 17:04:31,983 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-02-19 17:04:31,983 INFO L130 BoogieDeclarations]: Found specification of procedure test [2021-02-19 17:04:31,984 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2021-02-19 17:04:31,984 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2021-02-19 17:04:31,984 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2021-02-19 17:04:31,984 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2021-02-19 17:04:31,984 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2021-02-19 17:04:31,985 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2021-02-19 17:04:31,985 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2021-02-19 17:04:31,985 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2021-02-19 17:04:31,985 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2021-02-19 17:04:31,985 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2021-02-19 17:04:31,985 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2021-02-19 17:04:31,986 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2021-02-19 17:04:31,986 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2021-02-19 17:04:31,986 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2021-02-19 17:04:31,986 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2021-02-19 17:04:31,986 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2021-02-19 17:04:31,987 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2021-02-19 17:04:31,987 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2021-02-19 17:04:31,987 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2021-02-19 17:04:31,987 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2021-02-19 17:04:31,987 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-02-19 17:04:31,987 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-02-19 17:04:31,988 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2021-02-19 17:04:31,988 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-02-19 17:04:31,991 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-02-19 17:04:31,992 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-19 17:04:31,992 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-02-19 17:04:31,992 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2021-02-19 17:04:31,992 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-19 17:04:31,992 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2021-02-19 17:04:31,992 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2021-02-19 17:04:31,993 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-19 17:04:31,993 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2021-02-19 17:04:32,006 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2021-02-19 17:04:32,006 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2021-02-19 17:04:32,006 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2021-02-19 17:04:32,006 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2021-02-19 17:04:32,007 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2021-02-19 17:04:32,007 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-19 17:04:32,007 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-19 17:04:32,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-19 17:04:32,007 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-19 17:04:33,452 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-19 17:04:33,452 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-02-19 17:04:33,454 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.02 05:04:33 BoogieIcfgContainer [2021-02-19 17:04:33,455 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-19 17:04:33,457 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-19 17:04:33,457 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-19 17:04:33,461 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-19 17:04:33,461 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.02 05:04:31" (1/3) ... [2021-02-19 17:04:33,462 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22c1fdc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.02 05:04:33, skipping insertion in model container [2021-02-19 17:04:33,462 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:04:31" (2/3) ... [2021-02-19 17:04:33,463 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22c1fdc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.02 05:04:33, skipping insertion in model container [2021-02-19 17:04:33,463 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.02 05:04:33" (3/3) ... [2021-02-19 17:04:33,465 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product27.cil.c [2021-02-19 17:04:33,472 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-02-19 17:04:33,478 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-19 17:04:33,503 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-19 17:04:33,550 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-19 17:04:33,551 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-19 17:04:33,552 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-02-19 17:04:33,552 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-19 17:04:33,552 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-19 17:04:33,553 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-19 17:04:33,553 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-19 17:04:33,554 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-19 17:04:33,607 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states. [2021-02-19 17:04:33,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-02-19 17:04:33,623 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 17:04:33,624 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] [2021-02-19 17:04:33,624 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-19 17:04:33,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 17:04:33,634 INFO L82 PathProgramCache]: Analyzing trace with hash 1348060549, now seen corresponding path program 1 times [2021-02-19 17:04:33,647 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 17:04:33,647 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258680671] [2021-02-19 17:04:33,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 17:04:34,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:34,176 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:34,177 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:04:34,178 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:34,179 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:04:34,536 WARN L202 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-19 17:04:34,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-19 17:04:34,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:34,586 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:34,587 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:04:34,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-19 17:04:34,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:34,592 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:34,592 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:04:34,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-19 17:04:34,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:34,596 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:34,597 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:04:34,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-19 17:04:34,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:34,601 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:34,602 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:04:34,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-02-19 17:04:34,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:34,605 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:34,606 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:04:34,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-02-19 17:04:34,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:34,610 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:34,610 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:04:34,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-02-19 17:04:34,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:34,614 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:34,615 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:04:34,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-02-19 17:04:34,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:34,619 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:34,620 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:04:34,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 17:04:34,637 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258680671] [2021-02-19 17:04:34,638 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 17:04:34,638 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-02-19 17:04:34,639 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429027134] [2021-02-19 17:04:34,644 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-02-19 17:04:34,645 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 17:04:34,662 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-02-19 17:04:34,663 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-19 17:04:34,665 INFO L87 Difference]: Start difference. First operand 170 states. Second operand 3 states. [2021-02-19 17:04:36,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 17:04:36,017 INFO L93 Difference]: Finished difference Result 273 states and 360 transitions. [2021-02-19 17:04:36,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-19 17:04:36,019 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2021-02-19 17:04:36,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 17:04:36,033 INFO L225 Difference]: With dead ends: 273 [2021-02-19 17:04:36,033 INFO L226 Difference]: Without dead ends: 148 [2021-02-19 17:04:36,037 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 [2021-02-19 17:04:36,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2021-02-19 17:04:36,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 116. [2021-02-19 17:04:36,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116 states. [2021-02-19 17:04:36,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 136 transitions. [2021-02-19 17:04:36,132 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 136 transitions. Word has length 52 [2021-02-19 17:04:36,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 17:04:36,133 INFO L480 AbstractCegarLoop]: Abstraction has 116 states and 136 transitions. [2021-02-19 17:04:36,133 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-02-19 17:04:36,133 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 136 transitions. [2021-02-19 17:04:36,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-02-19 17:04:36,137 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 17:04:36,137 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] [2021-02-19 17:04:36,137 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-19 17:04:36,137 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-19 17:04:36,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 17:04:36,138 INFO L82 PathProgramCache]: Analyzing trace with hash -955819643, now seen corresponding path program 1 times [2021-02-19 17:04:36,138 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 17:04:36,139 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417705977] [2021-02-19 17:04:36,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 17:04:36,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:36,237 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:36,237 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:04:36,238 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:36,239 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:04:36,243 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:36,244 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:04:36,581 WARN L202 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-19 17:04:36,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-19 17:04:36,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:36,622 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:36,623 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:04:36,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-19 17:04:36,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:36,626 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:36,626 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:04:36,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-19 17:04:36,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:36,629 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:36,630 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:04:36,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-19 17:04:36,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:36,633 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:36,634 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:04:36,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-02-19 17:04:36,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:36,637 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:36,638 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:04:36,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-02-19 17:04:36,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:36,641 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:36,641 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:04:36,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-02-19 17:04:36,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:36,645 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:36,645 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:04:36,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-02-19 17:04:36,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:36,648 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:36,649 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:04:36,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 17:04:36,658 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417705977] [2021-02-19 17:04:36,658 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 17:04:36,658 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-19 17:04:36,658 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062701193] [2021-02-19 17:04:36,660 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-19 17:04:36,660 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 17:04:36,661 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-19 17:04:36,661 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-19 17:04:36,661 INFO L87 Difference]: Start difference. First operand 116 states and 136 transitions. Second operand 4 states. [2021-02-19 17:04:37,300 WARN L202 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-19 17:04:38,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 17:04:38,105 INFO L93 Difference]: Finished difference Result 200 states and 243 transitions. [2021-02-19 17:04:38,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-19 17:04:38,106 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2021-02-19 17:04:38,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 17:04:38,109 INFO L225 Difference]: With dead ends: 200 [2021-02-19 17:04:38,109 INFO L226 Difference]: Without dead ends: 132 [2021-02-19 17:04:38,111 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-02-19 17:04:38,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2021-02-19 17:04:38,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 107. [2021-02-19 17:04:38,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2021-02-19 17:04:38,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 124 transitions. [2021-02-19 17:04:38,157 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 124 transitions. Word has length 53 [2021-02-19 17:04:38,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 17:04:38,157 INFO L480 AbstractCegarLoop]: Abstraction has 107 states and 124 transitions. [2021-02-19 17:04:38,157 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-19 17:04:38,158 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 124 transitions. [2021-02-19 17:04:38,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-02-19 17:04:38,160 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 17:04:38,160 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-19 17:04:38,160 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-19 17:04:38,160 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-19 17:04:38,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 17:04:38,161 INFO L82 PathProgramCache]: Analyzing trace with hash -386537483, now seen corresponding path program 1 times [2021-02-19 17:04:38,161 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 17:04:38,162 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [879767690] [2021-02-19 17:04:38,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 17:04:38,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:38,289 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:38,290 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:04:38,294 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:38,296 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:04:38,297 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:38,298 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:04:38,303 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:38,304 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:04:38,310 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:38,310 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-19 17:04:38,318 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:38,319 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-19 17:04:38,319 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:38,320 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-19 17:04:38,321 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:38,322 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:04:38,672 WARN L202 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-19 17:04:38,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-19 17:04:38,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:38,709 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:38,710 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-19 17:04:38,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-19 17:04:38,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:38,716 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:38,717 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:04:38,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-19 17:04:38,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:38,721 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:38,722 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:04:38,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-19 17:04:38,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:38,762 WARN L141 QuantifierPusher]: treesize reduction 22, result has 33.3 percent of original size [2021-02-19 17:04:38,766 WARN L147 QuantifierPusher]: treesize reduction 22, result has 33.3 percent of original size 11 [2021-02-19 17:04:38,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-02-19 17:04:38,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:38,788 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:38,789 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:04:38,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-02-19 17:04:38,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:38,795 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:38,796 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:04:38,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-02-19 17:04:38,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:38,799 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:38,799 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:04:38,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-02-19 17:04:38,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:38,803 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:38,803 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:04:38,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 17:04:38,823 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [879767690] [2021-02-19 17:04:38,823 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 17:04:38,823 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-02-19 17:04:38,824 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348870376] [2021-02-19 17:04:38,824 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-19 17:04:38,825 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 17:04:38,825 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-19 17:04:38,830 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-02-19 17:04:38,831 INFO L87 Difference]: Start difference. First operand 107 states and 124 transitions. Second operand 8 states. [2021-02-19 17:04:39,355 WARN L202 SmtUtils]: Spent 363.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-19 17:04:39,829 WARN L202 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-19 17:04:40,214 WARN L202 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-19 17:04:40,642 WARN L202 SmtUtils]: Spent 380.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-19 17:04:41,589 WARN L202 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-19 17:04:43,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 17:04:43,303 INFO L93 Difference]: Finished difference Result 375 states and 465 transitions. [2021-02-19 17:04:43,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-19 17:04:43,305 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 57 [2021-02-19 17:04:43,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 17:04:43,310 INFO L225 Difference]: With dead ends: 375 [2021-02-19 17:04:43,310 INFO L226 Difference]: Without dead ends: 292 [2021-02-19 17:04:43,311 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-02-19 17:04:43,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2021-02-19 17:04:43,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 238. [2021-02-19 17:04:43,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 238 states. [2021-02-19 17:04:43,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 287 transitions. [2021-02-19 17:04:43,408 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 287 transitions. Word has length 57 [2021-02-19 17:04:43,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 17:04:43,408 INFO L480 AbstractCegarLoop]: Abstraction has 238 states and 287 transitions. [2021-02-19 17:04:43,408 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-02-19 17:04:43,409 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 287 transitions. [2021-02-19 17:04:43,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-02-19 17:04:43,412 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 17:04:43,412 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-19 17:04:43,412 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-19 17:04:43,413 INFO L428 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-19 17:04:43,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 17:04:43,413 INFO L82 PathProgramCache]: Analyzing trace with hash -158014613, now seen corresponding path program 1 times [2021-02-19 17:04:43,413 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 17:04:43,414 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921081587] [2021-02-19 17:04:43,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 17:04:43,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:43,483 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:43,484 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:04:43,488 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:43,488 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:04:43,489 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:43,489 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:04:43,490 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:43,490 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:04:43,491 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:43,491 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:04:43,492 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:43,492 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:04:43,497 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:43,497 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:04:43,503 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:43,504 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:04:43,798 WARN L202 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-19 17:04:43,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-19 17:04:43,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:43,864 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:43,868 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-19 17:04:43,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-19 17:04:43,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:43,873 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:43,880 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:04:43,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-19 17:04:43,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:43,884 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:43,885 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:04:43,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-19 17:04:43,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:43,888 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:43,889 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:04:43,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-02-19 17:04:43,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:43,908 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:43,910 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:04:43,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-02-19 17:04:43,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:43,928 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:43,928 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:04:43,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-02-19 17:04:43,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:43,932 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:43,932 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:04:43,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-02-19 17:04:43,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:43,936 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:43,937 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:04:43,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-02-19 17:04:43,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:43,950 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:43,950 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:04:43,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 17:04:43,961 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921081587] [2021-02-19 17:04:43,961 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 17:04:43,962 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-02-19 17:04:43,962 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404930820] [2021-02-19 17:04:43,962 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-19 17:04:43,962 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 17:04:43,963 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-19 17:04:43,963 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-02-19 17:04:43,963 INFO L87 Difference]: Start difference. First operand 238 states and 287 transitions. Second operand 8 states. [2021-02-19 17:04:44,560 WARN L202 SmtUtils]: Spent 403.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-19 17:04:46,128 WARN L202 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-19 17:04:46,603 WARN L202 SmtUtils]: Spent 359.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-19 17:04:47,004 WARN L202 SmtUtils]: Spent 362.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-19 17:04:47,416 WARN L202 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-19 17:04:48,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 17:04:48,135 INFO L93 Difference]: Finished difference Result 726 states and 953 transitions. [2021-02-19 17:04:48,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-02-19 17:04:48,135 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 63 [2021-02-19 17:04:48,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 17:04:48,142 INFO L225 Difference]: With dead ends: 726 [2021-02-19 17:04:48,142 INFO L226 Difference]: Without dead ends: 512 [2021-02-19 17:04:48,144 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2021-02-19 17:04:48,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 512 states. [2021-02-19 17:04:48,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 512 to 449. [2021-02-19 17:04:48,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 449 states. [2021-02-19 17:04:48,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 449 states to 449 states and 555 transitions. [2021-02-19 17:04:48,290 INFO L78 Accepts]: Start accepts. Automaton has 449 states and 555 transitions. Word has length 63 [2021-02-19 17:04:48,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 17:04:48,291 INFO L480 AbstractCegarLoop]: Abstraction has 449 states and 555 transitions. [2021-02-19 17:04:48,291 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-02-19 17:04:48,291 INFO L276 IsEmpty]: Start isEmpty. Operand 449 states and 555 transitions. [2021-02-19 17:04:48,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-02-19 17:04:48,295 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 17:04:48,295 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] [2021-02-19 17:04:48,295 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-19 17:04:48,296 INFO L428 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-19 17:04:48,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 17:04:48,296 INFO L82 PathProgramCache]: Analyzing trace with hash -642034159, now seen corresponding path program 1 times [2021-02-19 17:04:48,296 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 17:04:48,297 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896390077] [2021-02-19 17:04:48,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 17:04:48,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:48,348 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:48,349 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:04:48,352 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:48,352 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:04:48,353 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:48,354 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:04:48,354 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:48,355 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:04:48,355 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:48,356 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:04:48,356 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:48,357 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:04:48,357 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:48,359 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:04:48,689 WARN L202 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-19 17:04:48,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-19 17:04:48,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:48,722 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:48,722 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:04:48,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-19 17:04:48,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:48,726 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:48,726 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:04:48,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-19 17:04:48,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:48,729 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:48,730 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:04:48,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-19 17:04:48,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:48,734 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:48,735 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:04:48,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-02-19 17:04:48,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:48,738 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:48,738 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:04:48,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-02-19 17:04:48,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:48,753 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:48,754 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:04:48,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-02-19 17:04:48,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:48,766 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:48,767 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:04:48,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-02-19 17:04:48,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:48,769 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:48,770 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:04:48,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-02-19 17:04:48,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:48,773 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:48,774 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:04:48,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-02-19 17:04:48,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:48,776 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:48,777 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:04:48,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 17:04:48,793 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [896390077] [2021-02-19 17:04:48,793 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 17:04:48,794 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-02-19 17:04:48,794 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014083738] [2021-02-19 17:04:48,794 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-02-19 17:04:48,795 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 17:04:48,795 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-02-19 17:04:48,795 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-02-19 17:04:48,796 INFO L87 Difference]: Start difference. First operand 449 states and 555 transitions. Second operand 6 states. [2021-02-19 17:04:49,256 WARN L202 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-19 17:04:50,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 17:04:50,221 INFO L93 Difference]: Finished difference Result 761 states and 976 transitions. [2021-02-19 17:04:50,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-19 17:04:50,222 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 67 [2021-02-19 17:04:50,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 17:04:50,226 INFO L225 Difference]: With dead ends: 761 [2021-02-19 17:04:50,227 INFO L226 Difference]: Without dead ends: 336 [2021-02-19 17:04:50,228 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2021-02-19 17:04:50,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336 states. [2021-02-19 17:04:50,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336 to 315. [2021-02-19 17:04:50,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 315 states. [2021-02-19 17:04:50,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 315 states and 366 transitions. [2021-02-19 17:04:50,303 INFO L78 Accepts]: Start accepts. Automaton has 315 states and 366 transitions. Word has length 67 [2021-02-19 17:04:50,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 17:04:50,304 INFO L480 AbstractCegarLoop]: Abstraction has 315 states and 366 transitions. [2021-02-19 17:04:50,304 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-02-19 17:04:50,304 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states and 366 transitions. [2021-02-19 17:04:50,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-02-19 17:04:50,306 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 17:04:50,306 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] [2021-02-19 17:04:50,306 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-19 17:04:50,306 INFO L428 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-19 17:04:50,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 17:04:50,307 INFO L82 PathProgramCache]: Analyzing trace with hash -547168079, now seen corresponding path program 1 times [2021-02-19 17:04:50,307 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 17:04:50,308 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758583813] [2021-02-19 17:04:50,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 17:04:50,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-19 17:04:50,387 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-19 17:04:50,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-19 17:04:50,471 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-19 17:04:50,577 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-02-19 17:04:50,578 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-19 17:04:50,578 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-02-19 17:04:50,729 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.02 05:04:50 BoogieIcfgContainer [2021-02-19 17:04:50,730 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-19 17:04:50,731 INFO L168 Benchmark]: Toolchain (without parser) took 19617.49 ms. Allocated memory was 160.4 MB in the beginning and 420.5 MB in the end (delta: 260.0 MB). Free memory was 134.2 MB in the beginning and 241.4 MB in the end (delta: -107.2 MB). Peak memory consumption was 153.4 MB. Max. memory is 8.0 GB. [2021-02-19 17:04:50,731 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 160.4 MB. Free memory is still 131.3 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-19 17:04:50,731 INFO L168 Benchmark]: CACSL2BoogieTranslator took 590.64 ms. Allocated memory is still 160.4 MB. Free memory was 133.2 MB in the beginning and 112.4 MB in the end (delta: 20.7 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2021-02-19 17:04:50,732 INFO L168 Benchmark]: Boogie Preprocessor took 101.16 ms. Allocated memory is still 160.4 MB. Free memory was 112.4 MB in the beginning and 108.6 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2021-02-19 17:04:50,732 INFO L168 Benchmark]: RCFGBuilder took 1634.98 ms. Allocated memory is still 160.4 MB. Free memory was 108.6 MB in the beginning and 56.1 MB in the end (delta: 52.5 MB). Peak memory consumption was 53.0 MB. Max. memory is 8.0 GB. [2021-02-19 17:04:50,733 INFO L168 Benchmark]: TraceAbstraction took 17273.07 ms. Allocated memory was 160.4 MB in the beginning and 420.5 MB in the end (delta: 260.0 MB). Free memory was 55.6 MB in the beginning and 241.4 MB in the end (delta: -185.8 MB). Peak memory consumption was 75.3 MB. Max. memory is 8.0 GB. [2021-02-19 17:04:50,735 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 160.4 MB. Free memory is still 131.3 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 590.64 ms. Allocated memory is still 160.4 MB. Free memory was 133.2 MB in the beginning and 112.4 MB in the end (delta: 20.7 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 101.16 ms. Allocated memory is still 160.4 MB. Free memory was 112.4 MB in the beginning and 108.6 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1634.98 ms. Allocated memory is still 160.4 MB. Free memory was 108.6 MB in the beginning and 56.1 MB in the end (delta: 52.5 MB). Peak memory consumption was 53.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 17273.07 ms. Allocated memory was 160.4 MB in the beginning and 420.5 MB in the end (delta: 260.0 MB). Free memory was 55.6 MB in the beginning and 241.4 MB in the end (delta: -185.8 MB). Peak memory consumption was 75.3 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 348]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L122] int pumpRunning = 0; [L123] int systemActive = 1; [L560] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L757] int waterLevel = 1; [L758] int methaneLevelCritical = 0; [L846] int cleanupTimeShifts = 4; VAL [\old(cleanupTimeShifts)=180, \old(head)=182, \old(head)=170, \old(methaneLevelCritical)=151, \old(pumpRunning)=143, \old(systemActive)=142, \old(waterLevel)=145, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L919] int retValue_acc ; [L920] 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] [L924] 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] [L925] 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] [L926] 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] [L382] int retValue_acc ; [L385] retValue_acc = 1 [L386] 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] [L926] 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] [L926] tmp = valid_product() [L928] 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] [L930] 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] [L931] 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] [L913] 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 ; [L49] int tmp ; [L50] int tmp___0 ; [L51] int tmp___1 ; [L52] int tmp___2 ; [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() [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] [L775] COND TRUE waterLevel < 2 [L776] 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() [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() [L87] COND FALSE !(\read(tmp___2)) [L91] tmp___1 = __VERIFIER_nondet_int() [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] [L296] 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] [L303] 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] [L311] int tmp ; [L312] int tmp___0 ; [L313] 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] [L317] 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] [L796] int retValue_acc ; [L799] retValue_acc = methaneLevelCritical [L800] 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] [L317] 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] [L317] tmp = isMethaneLevelCritical() [L319] 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] [L323] 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] [L828] int retValue_acc ; [L831] retValue_acc = waterLevel [L832] 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] [L323] 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] [L323] tmp___0 = getWaterLevel() [L325] 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] [L327] 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] [L229] int retValue_acc ; [L232] retValue_acc = pumpRunning [L233] 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] [L327] 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] [L327] tmp___1 = isPumpRunning() [L329] 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] [L333] 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] [L348] 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 40 procedures, 233 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 17.0s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 12.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 508 SDtfs, 814 SDslu, 355 SDs, 0 SdLazy, 1819 SolverSat, 511 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 134 GetRequests, 98 SyntacticMatches, 1 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 6.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=449occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 5 MinimizatonAttempts, 195 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.6s InterpolantComputationTime, 359 NumberOfCodeBlocks, 359 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 287 ConstructedInterpolants, 0 QuantifiedInterpolants, 87348 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...