./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec4_product41.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 8d31f386 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/product-lines/minepump_spec4_product41.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 08266259dc0ecf0b11540043fa73fc4406b9f127 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.multireach-323-8d31f38 [2021-07-06 20:30:01,614 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-06 20:30:01,616 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-06 20:30:01,639 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-07-06 20:30:01,640 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-07-06 20:30:01,641 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-07-06 20:30:01,642 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-07-06 20:30:01,644 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-07-06 20:30:01,645 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-07-06 20:30:01,646 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-07-06 20:30:01,647 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-07-06 20:30:01,648 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-07-06 20:30:01,649 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-06 20:30:01,649 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-06 20:30:01,650 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-06 20:30:01,651 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-06 20:30:01,652 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-06 20:30:01,653 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-06 20:30:01,654 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-06 20:30:01,656 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-06 20:30:01,657 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-06 20:30:01,661 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-06 20:30:01,662 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-06 20:30:01,664 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-06 20:30:01,671 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-07-06 20:30:01,671 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-07-06 20:30:01,671 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-07-06 20:30:01,672 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-07-06 20:30:01,672 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-07-06 20:30:01,673 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-07-06 20:30:01,673 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-07-06 20:30:01,674 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-07-06 20:30:01,674 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-07-06 20:30:01,675 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-07-06 20:30:01,676 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-07-06 20:30:01,676 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-07-06 20:30:01,677 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-07-06 20:30:01,677 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-07-06 20:30:01,677 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-06 20:30:01,678 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-06 20:30:01,679 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-06 20:30:01,684 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-07-06 20:30:01,717 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-06 20:30:01,718 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-06 20:30:01,719 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-06 20:30:01,720 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-06 20:30:01,720 INFO L138 SettingsManager]: * Use SBE=true [2021-07-06 20:30:01,720 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-07-06 20:30:01,720 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-07-06 20:30:01,721 INFO L138 SettingsManager]: * Use old map elimination=false [2021-07-06 20:30:01,721 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-07-06 20:30:01,721 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-07-06 20:30:01,722 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-07-06 20:30:01,722 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-06 20:30:01,722 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-06 20:30:01,722 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-07-06 20:30:01,722 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-06 20:30:01,723 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-06 20:30:01,723 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-06 20:30:01,723 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-07-06 20:30:01,723 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-07-06 20:30:01,723 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-07-06 20:30:01,724 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-06 20:30:01,724 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-06 20:30:01,724 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-07-06 20:30:01,724 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-06 20:30:01,724 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-07-06 20:30:01,725 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-06 20:30:01,725 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-06 20:30:01,725 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-06 20:30:01,725 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-06 20:30:01,725 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-07-06 20:30:01,727 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-07-06 20:30:01,727 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 08266259dc0ecf0b11540043fa73fc4406b9f127 [2021-07-06 20:30:02,020 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-06 20:30:02,039 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-06 20:30:02,041 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-06 20:30:02,042 INFO L271 PluginConnector]: Initializing CDTParser... [2021-07-06 20:30:02,044 INFO L275 PluginConnector]: CDTParser initialized [2021-07-06 20:30:02,045 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product41.cil.c [2021-07-06 20:30:02,105 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/295c4c000/c5e1809157394a9db60f18c0c25334ac/FLAGe7d6e1cab [2021-07-06 20:30:02,661 INFO L306 CDTParser]: Found 1 translation units. [2021-07-06 20:30:02,661 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product41.cil.c [2021-07-06 20:30:02,675 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/295c4c000/c5e1809157394a9db60f18c0c25334ac/FLAGe7d6e1cab [2021-07-06 20:30:02,991 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/295c4c000/c5e1809157394a9db60f18c0c25334ac [2021-07-06 20:30:02,999 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-06 20:30:03,001 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-07-06 20:30:03,003 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-07-06 20:30:03,003 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-07-06 20:30:03,006 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-07-06 20:30:03,007 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.07 08:30:02" (1/1) ... [2021-07-06 20:30:03,008 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e2754d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:30:03, skipping insertion in model container [2021-07-06 20:30:03,009 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.07 08:30:02" (1/1) ... [2021-07-06 20:30:03,014 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-07-06 20:30:03,061 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-07-06 20:30:03,223 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product41.cil.c[3676,3689] [2021-07-06 20:30:03,284 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-06 20:30:03,304 INFO L203 MainTranslator]: Completed pre-run [2021-07-06 20:30:03,342 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product41.cil.c[3676,3689] [2021-07-06 20:30:03,422 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-06 20:30:03,453 INFO L208 MainTranslator]: Completed translation [2021-07-06 20:30:03,455 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:30:03 WrapperNode [2021-07-06 20:30:03,455 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-07-06 20:30:03,457 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-06 20:30:03,457 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-06 20:30:03,457 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-06 20:30:03,462 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:30:03" (1/1) ... [2021-07-06 20:30:03,485 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:30:03" (1/1) ... [2021-07-06 20:30:03,537 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-06 20:30:03,542 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-06 20:30:03,542 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-06 20:30:03,542 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-06 20:30:03,549 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:30:03" (1/1) ... [2021-07-06 20:30:03,549 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:30:03" (1/1) ... [2021-07-06 20:30:03,561 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:30:03" (1/1) ... [2021-07-06 20:30:03,561 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:30:03" (1/1) ... [2021-07-06 20:30:03,568 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:30:03" (1/1) ... [2021-07-06 20:30:03,574 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:30:03" (1/1) ... [2021-07-06 20:30:03,578 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:30:03" (1/1) ... [2021-07-06 20:30:03,581 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-06 20:30:03,582 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-06 20:30:03,582 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-06 20:30:03,582 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-06 20:30:03,583 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:30:03" (1/1) ... [2021-07-06 20:30:03,589 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-07-06 20:30:03,595 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-06 20:30:03,605 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-07-06 20:30:03,610 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-07-06 20:30:03,644 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-07-06 20:30:03,644 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-07-06 20:30:03,644 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-06 20:30:03,644 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-06 20:30:04,376 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-06 20:30:04,376 INFO L299 CfgBuilder]: Removed 114 assume(true) statements. [2021-07-06 20:30:04,378 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.07 08:30:04 BoogieIcfgContainer [2021-07-06 20:30:04,378 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-06 20:30:04,379 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-07-06 20:30:04,379 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-07-06 20:30:04,381 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-07-06 20:30:04,382 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-07-06 20:30:04,383 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 06.07 08:30:02" (1/3) ... [2021-07-06 20:30:04,384 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@c0e92c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.07 08:30:04, skipping insertion in model container [2021-07-06 20:30:04,384 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-07-06 20:30:04,384 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:30:03" (2/3) ... [2021-07-06 20:30:04,384 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@c0e92c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.07 08:30:04, skipping insertion in model container [2021-07-06 20:30:04,384 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-07-06 20:30:04,385 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.07 08:30:04" (3/3) ... [2021-07-06 20:30:04,386 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product41.cil.c [2021-07-06 20:30:04,428 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-07-06 20:30:04,428 INFO L360 BuchiCegarLoop]: Hoare is false [2021-07-06 20:30:04,428 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-07-06 20:30:04,429 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-06 20:30:04,429 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-06 20:30:04,429 INFO L364 BuchiCegarLoop]: Difference is false [2021-07-06 20:30:04,429 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-06 20:30:04,429 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-07-06 20:30:04,445 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 84 states, 83 states have (on average 1.5180722891566265) internal successors, (126), 83 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-06 20:30:04,473 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 53 [2021-07-06 20:30:04,474 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-07-06 20:30:04,474 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-07-06 20:30:04,480 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-07-06 20:30:04,480 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-06 20:30:04,480 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-07-06 20:30:04,483 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 84 states, 83 states have (on average 1.5180722891566265) internal successors, (126), 83 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-06 20:30:04,488 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 53 [2021-07-06 20:30:04,488 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-07-06 20:30:04,488 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-07-06 20:30:04,489 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-07-06 20:30:04,489 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-06 20:30:04,492 INFO L791 eck$LassoCheckResult]: Stem: 35#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(77, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(101, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(116, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(104, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string12.base, #t~string12.offset, 1);call write~init~int(82, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(73, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(84, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 4 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(75, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 1 + #t~string16.offset, 1);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(21);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(30);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(9);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(21);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(30);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(9);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(25);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(30);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(9);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(25);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(13);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(110, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 2 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(102, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(102, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 3 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string69.base, #t~string69.offset, 1);call write~init~int(80, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(117, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(109, #t~string69.base, 3 + #t~string69.offset, 1);call write~init~int(112, #t~string69.base, 4 + #t~string69.offset, 1);call write~init~int(58, #t~string69.base, 5 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 6 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string71.base, #t~string71.offset, 1);call write~init~int(110, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 2 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string73.base, #t~string73.offset, 1);call write~init~int(102, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(102, #t~string73.base, 2 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 3 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string75.base, #t~string75.offset, 1);call write~init~int(32, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 2 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string77.base, #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 1 + #t~string77.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 14#L-1true havoc main_#res;havoc main_#t~ret79, main_~retValue_acc~11, main_~tmp~8;havoc main_~retValue_acc~11;havoc main_~tmp~8; 86#L196true havoc valid_product_#res;havoc valid_product_~retValue_acc~4;havoc valid_product_~retValue_acc~4;valid_product_~retValue_acc~4 := 1;valid_product_#res := valid_product_~retValue_acc~4; 19#L204true main_#t~ret79 := valid_product_#res;main_~tmp~8 := main_#t~ret79;havoc main_#t~ret79; 12#L906true assume 0 != main_~tmp~8; 55#L883true havoc test_#t~nondet55, test_#t~nondet56, test_#t~nondet57, test_#t~nondet58, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 24#L153-1true [2021-07-06 20:30:04,493 INFO L793 eck$LassoCheckResult]: Loop: 24#L153-1true assume !false; 50#L597true assume test_~splverifierCounter~0 < 4; 72#L598true test_~tmp~4 := test_#t~nondet55;havoc test_#t~nondet55; 78#L606true assume !(0 != test_~tmp~4); 80#L606-1true test_~tmp___0~1 := test_#t~nondet56;havoc test_#t~nondet56; 58#L616true assume !(0 != test_~tmp___0~1); 60#L616-1true test_~tmp___2~0 := test_#t~nondet57;havoc test_#t~nondet57; 38#L626true assume 0 != test_~tmp___2~0; 9#L632-2true assume !(0 != ~pumpRunning~0); 11#L661true assume !(0 != ~systemActive~0); 82#L668true havoc __utac_acc__Specification4_spec__1_#t~ret17, __utac_acc__Specification4_spec__1_#t~ret18, __utac_acc__Specification4_spec__1_~tmp~0, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~0;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~1;havoc getWaterLevel_~retValue_acc~1;getWaterLevel_~retValue_acc~1 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~1; 8#L124true __utac_acc__Specification4_spec__1_#t~ret17 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~0 := __utac_acc__Specification4_spec__1_#t~ret17;havoc __utac_acc__Specification4_spec__1_#t~ret17; 27#L153true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~0); 24#L153-1true [2021-07-06 20:30:04,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:30:04,498 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2021-07-06 20:30:04,503 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:30:04,504 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47659122] [2021-07-06 20:30:04,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:30:04,505 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:30:04,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:30:04,747 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:30:04,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:30:04,862 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:30:04,903 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 20:30:04,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:30:04,909 INFO L82 PathProgramCache]: Analyzing trace with hash -1681191230, now seen corresponding path program 1 times [2021-07-06 20:30:04,909 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:30:04,910 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763411986] [2021-07-06 20:30:04,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:30:04,911 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:30:04,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:30:04,921 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:30:04,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:30:04,933 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:30:04,951 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 20:30:04,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:30:04,954 INFO L82 PathProgramCache]: Analyzing trace with hash 33087708, now seen corresponding path program 1 times [2021-07-06 20:30:04,954 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:30:04,954 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640353967] [2021-07-06 20:30:04,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:30:04,955 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:30:05,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-06 20:30:05,085 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:30:05,086 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 20:30:05,104 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:30:05,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 20:30:05,115 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:30:05,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 20:30:05,120 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:30:05,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-06 20:30:05,126 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:30:05,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 20:30:05,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-06 20:30:05,128 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-06 20:30:05,128 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640353967] [2021-07-06 20:30:05,129 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1640353967] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-06 20:30:05,129 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-06 20:30:05,129 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-07-06 20:30:05,129 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375787591] [2021-07-06 20:30:05,161 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:30:05,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-07-06 20:30:05,191 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-06 20:30:05,201 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-07-06 20:30:05,202 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-07-06 20:30:05,203 INFO L87 Difference]: Start difference. First operand has 84 states, 83 states have (on average 1.5180722891566265) internal successors, (126), 83 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-06 20:30:05,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-06 20:30:05,357 INFO L93 Difference]: Finished difference Result 84 states and 115 transitions. [2021-07-06 20:30:05,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-06 20:30:05,359 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 84 states and 115 transitions. [2021-07-06 20:30:05,362 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 51 [2021-07-06 20:30:05,366 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 84 states to 77 states and 108 transitions. [2021-07-06 20:30:05,366 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 77 [2021-07-06 20:30:05,367 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 77 [2021-07-06 20:30:05,367 INFO L73 IsDeterministic]: Start isDeterministic. Operand 77 states and 108 transitions. [2021-07-06 20:30:05,368 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-07-06 20:30:05,368 INFO L681 BuchiCegarLoop]: Abstraction has 77 states and 108 transitions. [2021-07-06 20:30:05,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states and 108 transitions. [2021-07-06 20:30:05,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2021-07-06 20:30:05,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 77 states have (on average 1.4025974025974026) internal successors, (108), 76 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-06 20:30:05,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 108 transitions. [2021-07-06 20:30:05,392 INFO L704 BuchiCegarLoop]: Abstraction has 77 states and 108 transitions. [2021-07-06 20:30:05,392 INFO L587 BuchiCegarLoop]: Abstraction has 77 states and 108 transitions. [2021-07-06 20:30:05,393 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-07-06 20:30:05,393 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 77 states and 108 transitions. [2021-07-06 20:30:05,395 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 51 [2021-07-06 20:30:05,395 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-07-06 20:30:05,395 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-07-06 20:30:05,395 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-07-06 20:30:05,395 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-06 20:30:05,396 INFO L791 eck$LassoCheckResult]: Stem: 229#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(77, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(101, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(116, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(104, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string12.base, #t~string12.offset, 1);call write~init~int(82, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(73, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(84, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 4 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(75, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 1 + #t~string16.offset, 1);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(21);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(30);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(9);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(21);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(30);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(9);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(25);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(30);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(9);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(25);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(13);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(110, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 2 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(102, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(102, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 3 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string69.base, #t~string69.offset, 1);call write~init~int(80, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(117, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(109, #t~string69.base, 3 + #t~string69.offset, 1);call write~init~int(112, #t~string69.base, 4 + #t~string69.offset, 1);call write~init~int(58, #t~string69.base, 5 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 6 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string71.base, #t~string71.offset, 1);call write~init~int(110, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 2 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string73.base, #t~string73.offset, 1);call write~init~int(102, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(102, #t~string73.base, 2 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 3 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string75.base, #t~string75.offset, 1);call write~init~int(32, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 2 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string77.base, #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 1 + #t~string77.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 207#L-1 havoc main_#res;havoc main_#t~ret79, main_~retValue_acc~11, main_~tmp~8;havoc main_~retValue_acc~11;havoc main_~tmp~8; 208#L196 havoc valid_product_#res;havoc valid_product_~retValue_acc~4;havoc valid_product_~retValue_acc~4;valid_product_~retValue_acc~4 := 1;valid_product_#res := valid_product_~retValue_acc~4; 216#L204 main_#t~ret79 := valid_product_#res;main_~tmp~8 := main_#t~ret79;havoc main_#t~ret79; 203#L906 assume 0 != main_~tmp~8; 204#L883 havoc test_#t~nondet55, test_#t~nondet56, test_#t~nondet57, test_#t~nondet58, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 199#L153-1 [2021-07-06 20:30:05,396 INFO L793 eck$LassoCheckResult]: Loop: 199#L153-1 assume !false; 221#L597 assume test_~splverifierCounter~0 < 4; 244#L598 test_~tmp~4 := test_#t~nondet55;havoc test_#t~nondet55; 262#L606 assume !(0 != test_~tmp~4); 259#L606-1 test_~tmp___0~1 := test_#t~nondet56;havoc test_#t~nondet56; 251#L616 assume !(0 != test_~tmp___0~1); 252#L616-1 test_~tmp___2~0 := test_#t~nondet57;havoc test_#t~nondet57; 231#L626 assume 0 != test_~tmp___2~0; 189#L632-2 assume !(0 != ~pumpRunning~0); 200#L661 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret59, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 202#L693 assume !(0 == ~pumpRunning~0); 260#L668 havoc __utac_acc__Specification4_spec__1_#t~ret17, __utac_acc__Specification4_spec__1_#t~ret18, __utac_acc__Specification4_spec__1_~tmp~0, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~0;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~1;havoc getWaterLevel_~retValue_acc~1;getWaterLevel_~retValue_acc~1 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~1; 196#L124 __utac_acc__Specification4_spec__1_#t~ret17 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~0 := __utac_acc__Specification4_spec__1_#t~ret17;havoc __utac_acc__Specification4_spec__1_#t~ret17; 197#L153 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~0); 199#L153-1 [2021-07-06 20:30:05,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:30:05,397 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2021-07-06 20:30:05,397 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:30:05,397 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809666817] [2021-07-06 20:30:05,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:30:05,398 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:30:05,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:30:05,430 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:30:05,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:30:05,461 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:30:05,473 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 20:30:05,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:30:05,474 INFO L82 PathProgramCache]: Analyzing trace with hash -619089829, now seen corresponding path program 1 times [2021-07-06 20:30:05,474 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:30:05,475 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332487505] [2021-07-06 20:30:05,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:30:05,475 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:30:05,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-06 20:30:05,491 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:30:05,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 20:30:05,492 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:30:05,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 20:30:05,514 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:30:05,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 20:30:05,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-06 20:30:05,515 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-06 20:30:05,515 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [332487505] [2021-07-06 20:30:05,515 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [332487505] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-06 20:30:05,515 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-06 20:30:05,515 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-07-06 20:30:05,516 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955212493] [2021-07-06 20:30:05,516 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-07-06 20:30:05,516 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-06 20:30:05,517 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-06 20:30:05,517 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-06 20:30:05,517 INFO L87 Difference]: Start difference. First operand 77 states and 108 transitions. cyclomatic complexity: 33 Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-06 20:30:05,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-06 20:30:05,564 INFO L93 Difference]: Finished difference Result 118 states and 159 transitions. [2021-07-06 20:30:05,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-06 20:30:05,564 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 118 states and 159 transitions. [2021-07-06 20:30:05,568 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 82 [2021-07-06 20:30:05,570 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 118 states to 118 states and 159 transitions. [2021-07-06 20:30:05,572 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 118 [2021-07-06 20:30:05,576 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 118 [2021-07-06 20:30:05,576 INFO L73 IsDeterministic]: Start isDeterministic. Operand 118 states and 159 transitions. [2021-07-06 20:30:05,577 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-07-06 20:30:05,577 INFO L681 BuchiCegarLoop]: Abstraction has 118 states and 159 transitions. [2021-07-06 20:30:05,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states and 159 transitions. [2021-07-06 20:30:05,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118. [2021-07-06 20:30:05,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 118 states have (on average 1.347457627118644) internal successors, (159), 117 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-06 20:30:05,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 159 transitions. [2021-07-06 20:30:05,585 INFO L704 BuchiCegarLoop]: Abstraction has 118 states and 159 transitions. [2021-07-06 20:30:05,585 INFO L587 BuchiCegarLoop]: Abstraction has 118 states and 159 transitions. [2021-07-06 20:30:05,585 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-07-06 20:30:05,585 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 118 states and 159 transitions. [2021-07-06 20:30:05,590 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 82 [2021-07-06 20:30:05,590 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-07-06 20:30:05,591 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-07-06 20:30:05,591 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-07-06 20:30:05,591 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-06 20:30:05,591 INFO L791 eck$LassoCheckResult]: Stem: 430#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(77, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(101, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(116, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(104, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string12.base, #t~string12.offset, 1);call write~init~int(82, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(73, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(84, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 4 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(75, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 1 + #t~string16.offset, 1);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(21);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(30);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(9);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(21);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(30);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(9);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(25);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(30);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(9);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(25);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(13);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(110, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 2 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(102, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(102, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 3 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string69.base, #t~string69.offset, 1);call write~init~int(80, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(117, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(109, #t~string69.base, 3 + #t~string69.offset, 1);call write~init~int(112, #t~string69.base, 4 + #t~string69.offset, 1);call write~init~int(58, #t~string69.base, 5 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 6 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string71.base, #t~string71.offset, 1);call write~init~int(110, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 2 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string73.base, #t~string73.offset, 1);call write~init~int(102, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(102, #t~string73.base, 2 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 3 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string75.base, #t~string75.offset, 1);call write~init~int(32, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 2 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string77.base, #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 1 + #t~string77.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 407#L-1 havoc main_#res;havoc main_#t~ret79, main_~retValue_acc~11, main_~tmp~8;havoc main_~retValue_acc~11;havoc main_~tmp~8; 408#L196 havoc valid_product_#res;havoc valid_product_~retValue_acc~4;havoc valid_product_~retValue_acc~4;valid_product_~retValue_acc~4 := 1;valid_product_#res := valid_product_~retValue_acc~4; 417#L204 main_#t~ret79 := valid_product_#res;main_~tmp~8 := main_#t~ret79;havoc main_#t~ret79; 403#L906 assume 0 != main_~tmp~8; 404#L883 havoc test_#t~nondet55, test_#t~nondet56, test_#t~nondet57, test_#t~nondet58, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 401#L153-1 [2021-07-06 20:30:05,591 INFO L793 eck$LassoCheckResult]: Loop: 401#L153-1 assume !false; 422#L597 assume test_~splverifierCounter~0 < 4; 447#L598 test_~tmp~4 := test_#t~nondet55;havoc test_#t~nondet55; 467#L606 assume !(0 != test_~tmp~4); 461#L606-1 test_~tmp___0~1 := test_#t~nondet56;havoc test_#t~nondet56; 452#L616 assume !(0 != test_~tmp___0~1); 453#L616-1 test_~tmp___2~0 := test_#t~nondet57;havoc test_#t~nondet57; 432#L626 assume 0 != test_~tmp___2~0; 390#L632-2 assume !(0 != ~pumpRunning~0); 399#L661 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret59, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 402#L693 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret78, isHighWaterLevel_~retValue_acc~10, isHighWaterLevel_~tmp~7, isHighWaterLevel_~tmp___0~2;havoc isHighWaterLevel_~retValue_acc~10;havoc isHighWaterLevel_~tmp~7;havoc isHighWaterLevel_~tmp___0~2;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~2;havoc isHighWaterSensorDry_~retValue_acc~2; 441#L132 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~2; 442#L137 isHighWaterLevel_#t~ret78 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~7 := isHighWaterLevel_#t~ret78;havoc isHighWaterLevel_#t~ret78; 443#L813 assume 0 != isHighWaterLevel_~tmp~7;isHighWaterLevel_~tmp___0~2 := 0; 444#L813-2 isHighWaterLevel_~retValue_acc~10 := isHighWaterLevel_~tmp___0~2;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~10; 411#L819 processEnvironment_#t~ret59 := isHighWaterLevel_#res;processEnvironment_~tmp~5 := processEnvironment_#t~ret59;havoc processEnvironment_#t~ret59; 412#L697 assume !(0 != processEnvironment_~tmp~5); 462#L668 havoc __utac_acc__Specification4_spec__1_#t~ret17, __utac_acc__Specification4_spec__1_#t~ret18, __utac_acc__Specification4_spec__1_~tmp~0, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~0;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~1;havoc getWaterLevel_~retValue_acc~1;getWaterLevel_~retValue_acc~1 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~1; 397#L124 __utac_acc__Specification4_spec__1_#t~ret17 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~0 := __utac_acc__Specification4_spec__1_#t~ret17;havoc __utac_acc__Specification4_spec__1_#t~ret17; 398#L153 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~0); 401#L153-1 [2021-07-06 20:30:05,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:30:05,592 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2021-07-06 20:30:05,592 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:30:05,592 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637380394] [2021-07-06 20:30:05,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:30:05,592 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:30:05,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:30:05,631 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:30:05,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:30:05,660 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:30:05,669 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 20:30:05,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:30:05,670 INFO L82 PathProgramCache]: Analyzing trace with hash -21695257, now seen corresponding path program 1 times [2021-07-06 20:30:05,670 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:30:05,670 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067332117] [2021-07-06 20:30:05,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:30:05,671 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:30:05,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:30:05,675 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:30:05,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:30:05,678 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:30:05,680 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 20:30:05,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:30:05,681 INFO L82 PathProgramCache]: Analyzing trace with hash -6983283, now seen corresponding path program 1 times [2021-07-06 20:30:05,681 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:30:05,681 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637807340] [2021-07-06 20:30:05,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:30:05,682 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:30:05,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:30:05,711 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:30:05,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:30:05,751 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:30:05,768 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 20:30:05,885 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 49 [2021-07-06 20:30:05,897 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:30:05,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-07-06 20:30:48,443 WARN L205 SmtUtils]: Spent 42.47 s on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2021-07-06 20:30:48,500 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:30:48,543 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2127 [2021-07-06 20:31:09,450 WARN L205 SmtUtils]: Spent 20.91 s on a formula simplification that was a NOOP. DAG size: 433 [2021-07-06 20:31:09,595 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 06.07 08:31:09 BoogieIcfgContainer [2021-07-06 20:31:09,595 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-07-06 20:31:09,596 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-07-06 20:31:09,597 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-07-06 20:31:09,597 INFO L275 PluginConnector]: Witness Printer initialized [2021-07-06 20:31:09,598 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.07 08:30:04" (3/4) ... [2021-07-06 20:31:09,600 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-07-06 20:31:09,637 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-07-06 20:31:09,637 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-07-06 20:31:09,638 INFO L168 Benchmark]: Toolchain (without parser) took 66636.96 ms. Allocated memory was 52.4 MB in the beginning and 98.6 MB in the end (delta: 46.1 MB). Free memory was 28.8 MB in the beginning and 29.2 MB in the end (delta: -410.6 kB). Peak memory consumption was 46.6 MB. Max. memory is 16.1 GB. [2021-07-06 20:31:09,638 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 52.4 MB. Free memory was 34.4 MB in the beginning and 34.3 MB in the end (delta: 63.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-07-06 20:31:09,639 INFO L168 Benchmark]: CACSL2BoogieTranslator took 452.83 ms. Allocated memory was 52.4 MB in the beginning and 67.1 MB in the end (delta: 14.7 MB). Free memory was 28.5 MB in the beginning and 34.0 MB in the end (delta: -5.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 16.1 GB. [2021-07-06 20:31:09,639 INFO L168 Benchmark]: Boogie Procedure Inliner took 84.43 ms. Allocated memory is still 67.1 MB. Free memory was 34.0 MB in the beginning and 48.4 MB in the end (delta: -14.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-07-06 20:31:09,640 INFO L168 Benchmark]: Boogie Preprocessor took 39.77 ms. Allocated memory is still 67.1 MB. Free memory was 48.4 MB in the beginning and 46.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-07-06 20:31:09,640 INFO L168 Benchmark]: RCFGBuilder took 795.76 ms. Allocated memory is still 67.1 MB. Free memory was 46.3 MB in the beginning and 30.1 MB in the end (delta: 16.2 MB). Peak memory consumption was 23.5 MB. Max. memory is 16.1 GB. [2021-07-06 20:31:09,640 INFO L168 Benchmark]: BuchiAutomizer took 65216.67 ms. Allocated memory was 67.1 MB in the beginning and 98.6 MB in the end (delta: 31.5 MB). Free memory was 30.1 MB in the beginning and 31.3 MB in the end (delta: -1.2 MB). Peak memory consumption was 48.2 MB. Max. memory is 16.1 GB. [2021-07-06 20:31:09,641 INFO L168 Benchmark]: Witness Printer took 41.11 ms. Allocated memory is still 98.6 MB. Free memory was 31.3 MB in the beginning and 29.2 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-07-06 20:31:09,643 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 52.4 MB. Free memory was 34.4 MB in the beginning and 34.3 MB in the end (delta: 63.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 452.83 ms. Allocated memory was 52.4 MB in the beginning and 67.1 MB in the end (delta: 14.7 MB). Free memory was 28.5 MB in the beginning and 34.0 MB in the end (delta: -5.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 84.43 ms. Allocated memory is still 67.1 MB. Free memory was 34.0 MB in the beginning and 48.4 MB in the end (delta: -14.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 39.77 ms. Allocated memory is still 67.1 MB. Free memory was 48.4 MB in the beginning and 46.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 795.76 ms. Allocated memory is still 67.1 MB. Free memory was 46.3 MB in the beginning and 30.1 MB in the end (delta: 16.2 MB). Peak memory consumption was 23.5 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 65216.67 ms. Allocated memory was 67.1 MB in the beginning and 98.6 MB in the end (delta: 31.5 MB). Free memory was 30.1 MB in the beginning and 31.3 MB in the end (delta: -1.2 MB). Peak memory consumption was 48.2 MB. Max. memory is 16.1 GB. * Witness Printer took 41.11 ms. Allocated memory is still 98.6 MB. Free memory was 31.3 MB in the beginning and 29.2 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 118 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 65.1s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 64.7s. Construction of modules took 0.1s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 21.5ms AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 118 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 216 SDtfs, 529 SDslu, 50 SDs, 0 SdLazy, 29 SolverSat, 15 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 120.3ms Time LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 596]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=422} State at position 1 is {NULL=0, NULL=0, NULL=425, NULL=0, NULL=422, NULL=0, NULL=435, NULL=0, NULL=445, NULL=429, NULL=0, NULL=0, NULL=434, methaneLevelCritical=0, NULL=427, tmp___0=0, NULL=0, tmp=0, NULL=0, NULL=447, NULL=0, tmp___1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6473c3ec=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2de5659d=0, NULL=0, NULL=0, NULL=0, tmp___0=0, NULL=430, cleanupTimeShifts=4, NULL=431, NULL=449, NULL=448, NULL=0, systemActive=1, waterLevel=1, NULL=442, \result=1, NULL=0, NULL=0, NULL=0, NULL=0, NULL=426, \result=0, NULL=0, NULL=443, NULL=0, NULL=0, retValue_acc=0, NULL=438, \result=1, retValue_acc=1, head=0, pumpRunning=0, NULL=432, \result=0, NULL=450, retValue_acc=1, NULL=0, tmp=1, NULL=0, \result=1, NULL=441, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@301d376=0, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@442d19e4=0, NULL=437, tmp=1, NULL=0, NULL=0, NULL=440, retValue_acc=0, NULL=0, NULL=424, tmp=1, tmp___2=57, NULL=0, tmp___0=0, splverifierCounter=0, NULL=0, NULL=436, NULL=423, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@33d5687e=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2f6b63c9=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5eb68fcd=57, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@65d86ff0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@722665f1=0, head=0, tmp=0, NULL=0, NULL=428, NULL=444, NULL=446, NULL=0, NULL=433, NULL=439} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L49] int waterLevel = 1; [L50] int methaneLevelCritical = 0; [L387] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L654] int pumpRunning = 0; [L655] int systemActive = 1; [L824] int cleanupTimeShifts = 4; [L897] int retValue_acc ; [L898] int tmp ; [L200] int retValue_acc ; [L203] retValue_acc = 1 [L204] return (retValue_acc); [L904] tmp = valid_product() [L906] COND TRUE \read(tmp) [L587] int splverifierCounter ; [L588] int tmp ; [L589] int tmp___0 ; [L590] int tmp___1 ; [L591] int tmp___2 ; [L594] splverifierCounter = 0 Loop: [L596] COND TRUE 1 [L598] COND TRUE splverifierCounter < 4 [L604] tmp = __VERIFIER_nondet_int() [L606] COND FALSE !(\read(tmp)) [L614] tmp___0 = __VERIFIER_nondet_int() [L616] COND FALSE !(\read(tmp___0)) [L624] tmp___2 = __VERIFIER_nondet_int() [L626] COND TRUE \read(tmp___2) [L661] COND FALSE !(\read(pumpRunning)) [L668] COND TRUE \read(systemActive) [L690] int tmp ; [L693] COND TRUE ! pumpRunning [L805] int retValue_acc ; [L806] int tmp ; [L807] int tmp___0 ; [L129] int retValue_acc ; [L132] COND TRUE waterLevel < 2 [L133] retValue_acc = 1 [L134] return (retValue_acc); [L811] tmp = isHighWaterSensorDry() [L813] COND TRUE \read(tmp) [L814] tmp___0 = 0 [L818] retValue_acc = tmp___0 [L819] return (retValue_acc); [L695] tmp = isHighWaterLevel() [L697] COND FALSE !(\read(tmp)) [L146] int tmp ; [L147] int tmp___0 ; [L120] int retValue_acc ; [L123] retValue_acc = waterLevel [L124] return (retValue_acc); [L151] tmp = getWaterLevel() [L153] COND FALSE !(tmp == 0) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-07-06 20:31:09,687 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...