/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_product04.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-36cd7be [2021-02-23 12:56:34,679 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-23 12:56:34,682 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-23 12:56:34,723 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-23 12:56:34,723 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-23 12:56:34,727 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-23 12:56:34,733 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-23 12:56:34,736 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-23 12:56:34,742 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-23 12:56:34,745 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-23 12:56:34,750 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-23 12:56:34,753 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-23 12:56:34,753 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-23 12:56:34,757 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-23 12:56:34,759 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-23 12:56:34,762 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-23 12:56:34,767 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-23 12:56:34,769 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-23 12:56:34,775 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-23 12:56:34,803 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-23 12:56:34,808 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-23 12:56:34,810 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-23 12:56:34,812 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-23 12:56:34,813 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-23 12:56:34,823 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-02-23 12:56:34,823 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-02-23 12:56:34,824 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-02-23 12:56:34,826 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-02-23 12:56:34,826 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-02-23 12:56:34,828 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-02-23 12:56:34,829 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-02-23 12:56:34,830 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-02-23 12:56:34,832 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-02-23 12:56:34,832 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-02-23 12:56:34,834 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-02-23 12:56:34,834 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-02-23 12:56:34,835 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-02-23 12:56:34,835 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-02-23 12:56:34,835 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-23 12:56:34,836 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-23 12:56:34,837 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-23 12:56:34,839 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 [2021-02-23 12:56:34,894 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-23 12:56:34,894 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-23 12:56:34,899 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-02-23 12:56:34,899 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-02-23 12:56:34,899 INFO L138 SettingsManager]: * Use SBE=true [2021-02-23 12:56:34,900 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-23 12:56:34,900 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-23 12:56:34,900 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-23 12:56:34,901 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-23 12:56:34,901 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-23 12:56:34,902 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-23 12:56:34,902 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-23 12:56:34,903 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-23 12:56:34,903 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-23 12:56:34,903 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-23 12:56:34,903 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-23 12:56:34,904 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-23 12:56:34,904 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-23 12:56:34,904 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-02-23 12:56:34,905 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-23 12:56:34,905 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-23 12:56:34,905 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-23 12:56:34,906 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-02-23 12:56:34,906 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-02-23 12:56:34,906 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-02-23 12:56:34,906 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-02-23 12:56:34,907 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-23 12:56:34,907 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-02-23 12:56:34,907 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-23 12:56:35,387 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-23 12:56:35,412 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-23 12:56:35,415 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-23 12:56:35,417 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-23 12:56:35,417 INFO L275 PluginConnector]: CDTParser initialized [2021-02-23 12:56:35,418 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product04.cil.c [2021-02-23 12:56:35,514 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/70fa1e90d/405d3cd6d45c46c9b2038dcb027b020c/FLAGfb39d9ee5 [2021-02-23 12:56:36,187 INFO L306 CDTParser]: Found 1 translation units. [2021-02-23 12:56:36,187 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product04.cil.c [2021-02-23 12:56:36,199 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/70fa1e90d/405d3cd6d45c46c9b2038dcb027b020c/FLAGfb39d9ee5 [2021-02-23 12:56:36,498 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/70fa1e90d/405d3cd6d45c46c9b2038dcb027b020c [2021-02-23 12:56:36,501 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-23 12:56:36,513 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-23 12:56:36,517 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-23 12:56:36,518 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-23 12:56:36,528 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-23 12:56:36,530 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 12:56:36" (1/1) ... [2021-02-23 12:56:36,532 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@989fb02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 12:56:36, skipping insertion in model container [2021-02-23 12:56:36,532 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 12:56:36" (1/1) ... [2021-02-23 12:56:36,541 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-23 12:56:36,606 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-23 12:56:36,860 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_product04.cil.c[13860,13873] [2021-02-23 12:56:36,882 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 12:56:36,893 INFO L203 MainTranslator]: Completed pre-run [2021-02-23 12:56:36,983 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_product04.cil.c[13860,13873] [2021-02-23 12:56:37,011 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 12:56:37,050 INFO L208 MainTranslator]: Completed translation [2021-02-23 12:56:37,051 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 12:56:37 WrapperNode [2021-02-23 12:56:37,051 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-23 12:56:37,052 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-23 12:56:37,052 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-23 12:56:37,055 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-23 12:56:37,068 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 12:56:37" (1/1) ... [2021-02-23 12:56:37,069 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 12:56:37" (1/1) ... [2021-02-23 12:56:37,088 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 12:56:37" (1/1) ... [2021-02-23 12:56:37,089 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 12:56:37" (1/1) ... [2021-02-23 12:56:37,116 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 12:56:37" (1/1) ... [2021-02-23 12:56:37,125 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 12:56:37" (1/1) ... [2021-02-23 12:56:37,130 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 12:56:37" (1/1) ... [2021-02-23 12:56:37,146 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-23 12:56:37,151 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-23 12:56:37,151 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-23 12:56:37,151 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-23 12:56:37,156 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 12:56:37" (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 [2021-02-23 12:56:37,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-23 12:56:37,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-23 12:56:37,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2021-02-23 12:56:37,316 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-23 12:56:37,317 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2021-02-23 12:56:37,317 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-02-23 12:56:37,317 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-02-23 12:56:37,317 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2021-02-23 12:56:37,318 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2021-02-23 12:56:37,318 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2021-02-23 12:56:37,319 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2021-02-23 12:56:37,319 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2021-02-23 12:56:37,320 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2021-02-23 12:56:37,320 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2021-02-23 12:56:37,321 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2021-02-23 12:56:37,321 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2021-02-23 12:56:37,321 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2021-02-23 12:56:37,322 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2021-02-23 12:56:37,322 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2021-02-23 12:56:37,322 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2021-02-23 12:56:37,322 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-02-23 12:56:37,322 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2021-02-23 12:56:37,323 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2021-02-23 12:56:37,323 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2021-02-23 12:56:37,323 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-23 12:56:37,323 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2021-02-23 12:56:37,323 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2021-02-23 12:56:37,323 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-02-23 12:56:37,323 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2021-02-23 12:56:37,324 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2021-02-23 12:56:37,324 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2021-02-23 12:56:37,324 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2021-02-23 12:56:37,324 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2021-02-23 12:56:37,324 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2021-02-23 12:56:37,324 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2021-02-23 12:56:37,324 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2021-02-23 12:56:37,325 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2021-02-23 12:56:37,325 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-23 12:56:37,325 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-23 12:56:37,325 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-23 12:56:37,325 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-23 12:56:37,325 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-23 12:56:37,325 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2021-02-23 12:56:37,326 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2021-02-23 12:56:37,326 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-02-23 12:56:37,326 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-02-23 12:56:37,326 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2021-02-23 12:56:37,326 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2021-02-23 12:56:37,326 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2021-02-23 12:56:37,326 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-02-23 12:56:37,327 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-02-23 12:56:37,327 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2021-02-23 12:56:37,327 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-02-23 12:56:37,327 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-02-23 12:56:37,327 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-23 12:56:37,327 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-02-23 12:56:37,328 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2021-02-23 12:56:37,328 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-23 12:56:37,328 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2021-02-23 12:56:37,328 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2021-02-23 12:56:37,328 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-23 12:56:37,328 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2021-02-23 12:56:37,328 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2021-02-23 12:56:37,329 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2021-02-23 12:56:37,329 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2021-02-23 12:56:37,329 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2021-02-23 12:56:37,329 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2021-02-23 12:56:37,329 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2021-02-23 12:56:37,330 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-02-23 12:56:37,330 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-02-23 12:56:37,330 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2021-02-23 12:56:37,330 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2021-02-23 12:56:37,331 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2021-02-23 12:56:37,331 INFO L130 BoogieDeclarations]: Found specification of procedure test [2021-02-23 12:56:37,331 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2021-02-23 12:56:37,331 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-23 12:56:37,331 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2021-02-23 12:56:37,332 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2021-02-23 12:56:37,332 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2021-02-23 12:56:37,332 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2021-02-23 12:56:37,332 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2021-02-23 12:56:37,333 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2021-02-23 12:56:37,333 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2021-02-23 12:56:37,333 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2021-02-23 12:56:37,334 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2021-02-23 12:56:37,335 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-23 12:56:37,335 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-23 12:56:37,335 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-23 12:56:38,323 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-23 12:56:38,324 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-02-23 12:56:38,326 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 12:56:38 BoogieIcfgContainer [2021-02-23 12:56:38,327 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-23 12:56:38,329 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-23 12:56:38,329 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-23 12:56:38,333 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-23 12:56:38,333 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.02 12:56:36" (1/3) ... [2021-02-23 12:56:38,334 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4764b44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 12:56:38, skipping insertion in model container [2021-02-23 12:56:38,334 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 12:56:37" (2/3) ... [2021-02-23 12:56:38,335 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4764b44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 12:56:38, skipping insertion in model container [2021-02-23 12:56:38,335 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 12:56:38" (3/3) ... [2021-02-23 12:56:38,337 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product04.cil.c [2021-02-23 12:56:38,344 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-02-23 12:56:38,350 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-23 12:56:38,371 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-23 12:56:38,422 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-23 12:56:38,423 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-23 12:56:38,423 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-02-23 12:56:38,423 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-23 12:56:38,423 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-23 12:56:38,423 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-23 12:56:38,423 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-23 12:56:38,424 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-23 12:56:38,446 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states. [2021-02-23 12:56:38,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-02-23 12:56:38,455 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 12:56:38,456 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] [2021-02-23 12:56:38,456 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 12:56:38,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 12:56:38,463 INFO L82 PathProgramCache]: Analyzing trace with hash -636398238, now seen corresponding path program 1 times [2021-02-23 12:56:38,473 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-23 12:56:38,473 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753745958] [2021-02-23 12:56:38,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 12:56:38,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:56:38,914 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:56:38,916 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:56:38,917 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:56:38,917 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:56:39,200 WARN L202 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-23 12:56:39,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 12:56:39,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:56:39,302 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:56:39,304 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:56:39,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-23 12:56:39,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:56:39,315 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:56:39,318 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:56:39,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-23 12:56:39,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:56:39,323 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:56:39,323 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:56:39,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-23 12:56:39,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:56:39,331 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:56:39,332 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:56:39,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-02-23 12:56:39,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:56:39,336 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:56:39,337 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:56:39,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-02-23 12:56:39,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:56:39,341 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:56:39,342 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:56:39,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-02-23 12:56:39,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:56:39,351 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:56:39,352 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:56:39,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-02-23 12:56:39,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:56:39,361 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:56:39,362 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:56:39,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 12:56:39,390 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753745958] [2021-02-23 12:56:39,391 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 12:56:39,391 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-02-23 12:56:39,392 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443271858] [2021-02-23 12:56:39,397 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-02-23 12:56:39,398 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-23 12:56:39,412 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-02-23 12:56:39,413 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-23 12:56:39,415 INFO L87 Difference]: Start difference. First operand 146 states. Second operand 3 states. [2021-02-23 12:56:40,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 12:56:40,462 INFO L93 Difference]: Finished difference Result 240 states and 317 transitions. [2021-02-23 12:56:40,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-23 12:56:40,465 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2021-02-23 12:56:40,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 12:56:40,478 INFO L225 Difference]: With dead ends: 240 [2021-02-23 12:56:40,478 INFO L226 Difference]: Without dead ends: 131 [2021-02-23 12:56:40,483 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-23 12:56:40,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2021-02-23 12:56:40,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 100. [2021-02-23 12:56:40,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2021-02-23 12:56:40,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 115 transitions. [2021-02-23 12:56:40,571 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 115 transitions. Word has length 52 [2021-02-23 12:56:40,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 12:56:40,572 INFO L480 AbstractCegarLoop]: Abstraction has 100 states and 115 transitions. [2021-02-23 12:56:40,572 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-02-23 12:56:40,572 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 115 transitions. [2021-02-23 12:56:40,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-02-23 12:56:40,576 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 12:56:40,576 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] [2021-02-23 12:56:40,576 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-23 12:56:40,577 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 12:56:40,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 12:56:40,577 INFO L82 PathProgramCache]: Analyzing trace with hash -254925900, now seen corresponding path program 1 times [2021-02-23 12:56:40,578 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-23 12:56:40,578 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054571130] [2021-02-23 12:56:40,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 12:56:40,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:56:40,672 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:56:40,673 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:56:40,674 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:56:40,675 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 12:56:40,679 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:56:40,680 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:56:40,994 WARN L202 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-23 12:56:40,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 12:56:41,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:56:41,024 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:56:41,025 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:56:41,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-23 12:56:41,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:56:41,028 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:56:41,029 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:56:41,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-23 12:56:41,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:56:41,032 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:56:41,032 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:56:41,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-23 12:56:41,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:56:41,036 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:56:41,037 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:56:41,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-02-23 12:56:41,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:56:41,041 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:56:41,042 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:56:41,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-02-23 12:56:41,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:56:41,045 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:56:41,046 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:56:41,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-02-23 12:56:41,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:56:41,050 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:56:41,050 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:56:41,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-02-23 12:56:41,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:56:41,054 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:56:41,054 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:56:41,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 12:56:41,064 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054571130] [2021-02-23 12:56:41,064 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 12:56:41,064 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-23 12:56:41,065 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891057497] [2021-02-23 12:56:41,066 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-23 12:56:41,066 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-23 12:56:41,067 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-23 12:56:41,067 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-23 12:56:41,068 INFO L87 Difference]: Start difference. First operand 100 states and 115 transitions. Second operand 4 states. [2021-02-23 12:56:41,638 WARN L202 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-23 12:56:42,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 12:56:42,316 INFO L93 Difference]: Finished difference Result 160 states and 194 transitions. [2021-02-23 12:56:42,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-23 12:56:42,317 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2021-02-23 12:56:42,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 12:56:42,320 INFO L225 Difference]: With dead ends: 160 [2021-02-23 12:56:42,321 INFO L226 Difference]: Without dead ends: 115 [2021-02-23 12:56:42,322 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 [2021-02-23 12:56:42,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2021-02-23 12:56:42,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 91. [2021-02-23 12:56:42,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2021-02-23 12:56:42,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 103 transitions. [2021-02-23 12:56:42,362 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 103 transitions. Word has length 53 [2021-02-23 12:56:42,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 12:56:42,363 INFO L480 AbstractCegarLoop]: Abstraction has 91 states and 103 transitions. [2021-02-23 12:56:42,363 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-23 12:56:42,363 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 103 transitions. [2021-02-23 12:56:42,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-02-23 12:56:42,365 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 12:56:42,366 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] [2021-02-23 12:56:42,366 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-23 12:56:42,366 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 12:56:42,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 12:56:42,367 INFO L82 PathProgramCache]: Analyzing trace with hash 89577637, now seen corresponding path program 1 times [2021-02-23 12:56:42,367 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-23 12:56:42,367 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102476406] [2021-02-23 12:56:42,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 12:56:42,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:56:42,483 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:56:42,484 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 12:56:42,488 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:56:42,489 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 12:56:42,490 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:56:42,490 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 12:56:42,495 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:56:42,496 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 12:56:42,502 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:56:42,503 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 12:56:42,510 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:56:42,510 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 12:56:42,511 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:56:42,511 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 12:56:42,512 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:56:42,513 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:56:42,859 WARN L202 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-23 12:56:42,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 12:56:42,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:56:42,892 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:56:42,892 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 12:56:42,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-23 12:56:42,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:56:42,897 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:56:42,898 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:56:42,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-23 12:56:42,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:56:42,901 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:56:42,901 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:56:42,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-23 12:56:42,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:56:42,917 WARN L141 QuantifierPusher]: treesize reduction 22, result has 33.3 percent of original size [2021-02-23 12:56:42,918 WARN L147 QuantifierPusher]: treesize reduction 22, result has 33.3 percent of original size 11 [2021-02-23 12:56:42,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-02-23 12:56:42,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:56:42,935 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:56:42,936 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:56:42,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-02-23 12:56:42,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:56:42,938 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:56:42,939 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:56:42,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-02-23 12:56:42,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:56:42,941 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:56:42,942 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:56:42,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-02-23 12:56:42,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:56:42,944 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:56:42,945 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:56:42,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 12:56:42,955 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102476406] [2021-02-23 12:56:42,955 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 12:56:42,956 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-02-23 12:56:42,956 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917374813] [2021-02-23 12:56:42,956 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-23 12:56:42,957 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-23 12:56:42,957 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-23 12:56:42,957 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-02-23 12:56:42,958 INFO L87 Difference]: Start difference. First operand 91 states and 103 transitions. Second operand 8 states. [2021-02-23 12:56:43,481 WARN L202 SmtUtils]: Spent 366.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-23 12:56:43,936 WARN L202 SmtUtils]: Spent 347.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 12:56:44,353 WARN L202 SmtUtils]: Spent 370.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 12:56:44,750 WARN L202 SmtUtils]: Spent 365.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 12:56:45,778 WARN L202 SmtUtils]: Spent 359.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-23 12:56:47,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 12:56:47,186 INFO L93 Difference]: Finished difference Result 326 states and 401 transitions. [2021-02-23 12:56:47,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-23 12:56:47,187 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 58 [2021-02-23 12:56:47,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 12:56:47,190 INFO L225 Difference]: With dead ends: 326 [2021-02-23 12:56:47,191 INFO L226 Difference]: Without dead ends: 259 [2021-02-23 12:56:47,192 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 [2021-02-23 12:56:47,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2021-02-23 12:56:47,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 190. [2021-02-23 12:56:47,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 190 states. [2021-02-23 12:56:47,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 225 transitions. [2021-02-23 12:56:47,268 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 225 transitions. Word has length 58 [2021-02-23 12:56:47,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 12:56:47,269 INFO L480 AbstractCegarLoop]: Abstraction has 190 states and 225 transitions. [2021-02-23 12:56:47,269 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-02-23 12:56:47,269 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 225 transitions. [2021-02-23 12:56:47,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-02-23 12:56:47,272 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 12:56:47,272 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] [2021-02-23 12:56:47,272 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-23 12:56:47,272 INFO L428 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 12:56:47,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 12:56:47,273 INFO L82 PathProgramCache]: Analyzing trace with hash -1898607875, now seen corresponding path program 1 times [2021-02-23 12:56:47,273 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-23 12:56:47,273 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681980760] [2021-02-23 12:56:47,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 12:56:47,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:56:47,344 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:56:47,345 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 12:56:47,348 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:56:47,349 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 12:56:47,349 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:56:47,350 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 12:56:47,351 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:56:47,351 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 12:56:47,352 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:56:47,352 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 12:56:47,353 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:56:47,353 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 12:56:47,358 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:56:47,359 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 12:56:47,364 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:56:47,365 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:56:47,708 WARN L202 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-23 12:56:47,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 12:56:47,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:56:47,744 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:56:47,745 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 12:56:47,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-23 12:56:47,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:56:47,749 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:56:47,749 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:56:47,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-23 12:56:47,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:56:47,753 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:56:47,753 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:56:47,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-23 12:56:47,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:56:47,757 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:56:47,757 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:56:47,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-02-23 12:56:47,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:56:47,761 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:56:47,761 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:56:47,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-02-23 12:56:47,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:56:47,764 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:56:47,765 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:56:47,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-02-23 12:56:47,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:56:47,768 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:56:47,769 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:56:47,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-02-23 12:56:47,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:56:47,774 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:56:47,774 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 12:56:47,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-02-23 12:56:47,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:56:47,787 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:56:47,789 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:56:47,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 12:56:47,816 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681980760] [2021-02-23 12:56:47,816 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 12:56:47,816 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-02-23 12:56:47,817 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263136575] [2021-02-23 12:56:47,817 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-02-23 12:56:47,817 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-23 12:56:47,818 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-02-23 12:56:47,818 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-02-23 12:56:47,818 INFO L87 Difference]: Start difference. First operand 190 states and 225 transitions. Second operand 7 states. [2021-02-23 12:56:48,336 WARN L202 SmtUtils]: Spent 357.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-23 12:56:49,613 WARN L202 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 12:56:50,046 WARN L202 SmtUtils]: Spent 354.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 12:56:50,454 WARN L202 SmtUtils]: Spent 360.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 12:56:50,801 WARN L202 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-23 12:56:51,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 12:56:51,201 INFO L93 Difference]: Finished difference Result 537 states and 682 transitions. [2021-02-23 12:56:51,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-02-23 12:56:51,202 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 61 [2021-02-23 12:56:51,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 12:56:51,206 INFO L225 Difference]: With dead ends: 537 [2021-02-23 12:56:51,206 INFO L226 Difference]: Without dead ends: 371 [2021-02-23 12:56:51,209 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2021-02-23 12:56:51,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2021-02-23 12:56:51,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 349. [2021-02-23 12:56:51,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 349 states. [2021-02-23 12:56:51,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 425 transitions. [2021-02-23 12:56:51,317 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 425 transitions. Word has length 61 [2021-02-23 12:56:51,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 12:56:51,317 INFO L480 AbstractCegarLoop]: Abstraction has 349 states and 425 transitions. [2021-02-23 12:56:51,317 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-02-23 12:56:51,318 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 425 transitions. [2021-02-23 12:56:51,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-02-23 12:56:51,321 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 12:56:51,321 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] [2021-02-23 12:56:51,321 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-23 12:56:51,322 INFO L428 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 12:56:51,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 12:56:51,322 INFO L82 PathProgramCache]: Analyzing trace with hash 947588439, now seen corresponding path program 1 times [2021-02-23 12:56:51,322 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-23 12:56:51,323 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2018580181] [2021-02-23 12:56:51,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 12:56:51,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:56:51,398 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:56:51,399 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 12:56:51,402 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:56:51,403 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 12:56:51,405 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:56:51,405 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 12:56:51,406 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:56:51,407 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 12:56:51,409 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:56:51,410 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:56:51,723 WARN L202 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-23 12:56:51,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 12:56:51,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:56:51,753 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:56:51,754 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 12:56:51,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-23 12:56:51,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:56:51,757 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:56:51,757 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:56:51,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-23 12:56:51,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:56:51,760 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:56:51,760 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:56:51,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-23 12:56:51,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:56:51,763 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:56:51,764 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:56:51,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-02-23 12:56:51,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:56:51,766 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:56:51,767 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:56:51,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-02-23 12:56:51,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:56:51,776 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:56:51,777 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:56:51,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-02-23 12:56:51,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:56:51,779 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:56:51,779 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:56:51,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-02-23 12:56:51,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:56:51,781 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:56:51,782 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:56:51,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-02-23 12:56:51,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:56:51,784 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:56:51,785 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:56:51,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-02-23 12:56:51,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:56:51,787 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:56:51,788 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:56:51,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 12:56:51,811 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2018580181] [2021-02-23 12:56:51,811 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 12:56:51,812 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-02-23 12:56:51,812 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439802969] [2021-02-23 12:56:51,812 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-02-23 12:56:51,812 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-23 12:56:51,813 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-02-23 12:56:51,813 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-02-23 12:56:51,813 INFO L87 Difference]: Start difference. First operand 349 states and 425 transitions. Second operand 5 states. [2021-02-23 12:56:52,263 WARN L202 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-23 12:56:53,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 12:56:53,009 INFO L93 Difference]: Finished difference Result 642 states and 802 transitions. [2021-02-23 12:56:53,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-23 12:56:53,010 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 65 [2021-02-23 12:56:53,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 12:56:53,013 INFO L225 Difference]: With dead ends: 642 [2021-02-23 12:56:53,013 INFO L226 Difference]: Without dead ends: 317 [2021-02-23 12:56:53,015 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-02-23 12:56:53,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2021-02-23 12:56:53,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 303. [2021-02-23 12:56:53,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 303 states. [2021-02-23 12:56:53,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 303 states and 354 transitions. [2021-02-23 12:56:53,115 INFO L78 Accepts]: Start accepts. Automaton has 303 states and 354 transitions. Word has length 65 [2021-02-23 12:56:53,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 12:56:53,115 INFO L480 AbstractCegarLoop]: Abstraction has 303 states and 354 transitions. [2021-02-23 12:56:53,115 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-02-23 12:56:53,116 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states and 354 transitions. [2021-02-23 12:56:53,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-02-23 12:56:53,117 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 12:56:53,118 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] [2021-02-23 12:56:53,118 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-23 12:56:53,118 INFO L428 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 12:56:53,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 12:56:53,119 INFO L82 PathProgramCache]: Analyzing trace with hash 805772803, now seen corresponding path program 1 times [2021-02-23 12:56:53,119 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-23 12:56:53,119 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140294006] [2021-02-23 12:56:53,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 12:56:53,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-23 12:56:53,252 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-23 12:56:53,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-23 12:56:53,331 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-23 12:56:53,435 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-02-23 12:56:53,435 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-23 12:56:53,435 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-02-23 12:56:53,620 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.02 12:56:53 BoogieIcfgContainer [2021-02-23 12:56:53,620 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-23 12:56:53,622 INFO L168 Benchmark]: Toolchain (without parser) took 17118.82 ms. Allocated memory was 152.0 MB in the beginning and 398.5 MB in the end (delta: 246.4 MB). Free memory was 126.7 MB in the beginning and 262.0 MB in the end (delta: -135.2 MB). Peak memory consumption was 111.7 MB. Max. memory is 8.0 GB. [2021-02-23 12:56:53,625 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 152.0 MB. Free memory is still 124.8 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-23 12:56:53,625 INFO L168 Benchmark]: CACSL2BoogieTranslator took 534.23 ms. Allocated memory is still 152.0 MB. Free memory was 125.7 MB in the beginning and 106.3 MB in the end (delta: 19.5 MB). Peak memory consumption was 18.9 MB. Max. memory is 8.0 GB. [2021-02-23 12:56:53,628 INFO L168 Benchmark]: Boogie Preprocessor took 94.36 ms. Allocated memory is still 152.0 MB. Free memory was 106.2 MB in the beginning and 102.5 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2021-02-23 12:56:53,628 INFO L168 Benchmark]: RCFGBuilder took 1176.11 ms. Allocated memory is still 152.0 MB. Free memory was 102.3 MB in the beginning and 52.2 MB in the end (delta: 50.1 MB). Peak memory consumption was 49.8 MB. Max. memory is 8.0 GB. [2021-02-23 12:56:53,629 INFO L168 Benchmark]: TraceAbstraction took 15291.76 ms. Allocated memory was 152.0 MB in the beginning and 398.5 MB in the end (delta: 246.4 MB). Free memory was 51.7 MB in the beginning and 262.0 MB in the end (delta: -210.3 MB). Peak memory consumption was 36.6 MB. Max. memory is 8.0 GB. [2021-02-23 12:56:53,637 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 152.0 MB. Free memory is still 124.8 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 534.23 ms. Allocated memory is still 152.0 MB. Free memory was 125.7 MB in the beginning and 106.3 MB in the end (delta: 19.5 MB). Peak memory consumption was 18.9 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 94.36 ms. Allocated memory is still 152.0 MB. Free memory was 106.2 MB in the beginning and 102.5 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1176.11 ms. Allocated memory is still 152.0 MB. Free memory was 102.3 MB in the beginning and 52.2 MB in the end (delta: 50.1 MB). Peak memory consumption was 49.8 MB. Max. memory is 8.0 GB. * TraceAbstraction took 15291.76 ms. Allocated memory was 152.0 MB in the beginning and 398.5 MB in the end (delta: 246.4 MB). Free memory was 51.7 MB in the beginning and 262.0 MB in the end (delta: -210.3 MB). Peak memory consumption was 36.6 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 635]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L48] int waterLevel = 1; [L49] int methaneLevelCritical = 0; [L297] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L532] int cleanupTimeShifts = 4; [L679] int pumpRunning = 0; [L680] int systemActive = 1; VAL [\old(cleanupTimeShifts)=180, \old(head)=182, \old(head)=170, \old(methaneLevelCritical)=148, \old(pumpRunning)=137, \old(systemActive)=136, \old(waterLevel)=145, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L608] int retValue_acc ; [L609] 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] [L613] 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] [L614] 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] [L615] 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] [L523] int retValue_acc ; [L526] retValue_acc = 1 [L527] 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] [L615] 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] [L615] tmp = valid_product() [L617] 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] [L619] 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] [L620] 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] [L602] 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] [L810] int splverifierCounter ; [L811] int tmp ; [L812] int tmp___0 ; [L813] int tmp___1 ; [L814] int tmp___2 ; [L817] 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] [L819] 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] [L821] 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] [L827] tmp = __VERIFIER_nondet_int() [L829] 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] [L831] 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] [L66] COND TRUE waterLevel < 2 [L67] 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] [L831] 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] [L837] tmp___0 = __VERIFIER_nondet_int() [L839] 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] [L847] tmp___2 = __VERIFIER_nondet_int() [L849] COND FALSE !(\read(tmp___2)) [L855] tmp___1 = __VERIFIER_nondet_int() [L857] COND FALSE !(\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=0, tmp___2=0, waterLevel=2] [L866] 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=1, waterLevel=2] [L686] 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=1, waterLevel=2] [L693] COND TRUE \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=1, waterLevel=2] [L695] FCALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L701] 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=1, waterLevel=2] [L642] int tmp ; [L643] int tmp___0 ; [L644] 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=1, waterLevel=2] [L648] 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=1, waterLevel=2] [L87] int retValue_acc ; [L90] retValue_acc = methaneLevelCritical [L91] 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=1, waterLevel=2] [L648] 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=1, waterLevel=2] [L648] tmp = isMethaneLevelCritical() [L650] 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=1, tmp=0, waterLevel=2] [L654] 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=1, waterLevel=2] [L119] int retValue_acc ; [L122] retValue_acc = waterLevel [L123] 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=1, waterLevel=2] [L654] 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=1, tmp=0, waterLevel=2] [L654] tmp___0 = getWaterLevel() [L656] 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=1, tmp=0, tmp___0=2, waterLevel=2] [L658] 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=1, waterLevel=2] [L741] int retValue_acc ; [L744] retValue_acc = pumpRunning [L745] 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=1, waterLevel=2] [L658] 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=1, tmp=0, tmp___0=2, waterLevel=2] [L658] tmp___1 = isPumpRunning() [L660] 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=1, tmp=0, tmp___0=2, tmp___1=0, waterLevel=2] [L664] 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=1, waterLevel=2] [L635] 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=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 37 procedures, 210 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 15.0s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 11.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 433 SDtfs, 644 SDslu, 322 SDs, 0 SdLazy, 1322 SolverSat, 398 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 129 GetRequests, 98 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 6.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=349occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 5 MinimizatonAttempts, 160 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 354 NumberOfCodeBlocks, 354 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 284 ConstructedInterpolants, 0 QuantifiedInterpolants, 85052 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...