./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product56.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_6aa20dc8-8a2b-474f-9d5b-a6e6ac0540b4/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_6aa20dc8-8a2b-474f-9d5b-a6e6ac0540b4/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_6aa20dc8-8a2b-474f-9d5b-a6e6ac0540b4/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_6aa20dc8-8a2b-474f-9d5b-a6e6ac0540b4/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product56.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_6aa20dc8-8a2b-474f-9d5b-a6e6ac0540b4/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_6aa20dc8-8a2b-474f-9d5b-a6e6ac0540b4/bin/uautomizer --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 525453629ce87b69ed1d4100e13fdb9e0c8a872a .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 0.1.24-cad4683 [2019-10-22 09:02:45,666 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 09:02:45,668 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 09:02:45,680 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 09:02:45,680 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 09:02:45,681 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 09:02:45,682 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 09:02:45,684 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 09:02:45,686 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 09:02:45,687 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 09:02:45,688 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 09:02:45,689 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 09:02:45,690 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 09:02:45,691 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 09:02:45,692 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 09:02:45,693 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 09:02:45,694 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 09:02:45,695 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 09:02:45,696 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 09:02:45,698 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 09:02:45,700 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 09:02:45,701 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 09:02:45,702 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 09:02:45,703 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 09:02:45,706 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 09:02:45,706 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 09:02:45,706 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 09:02:45,707 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 09:02:45,708 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 09:02:45,709 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 09:02:45,709 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 09:02:45,710 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 09:02:45,710 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 09:02:45,711 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 09:02:45,712 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 09:02:45,713 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 09:02:45,713 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 09:02:45,714 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 09:02:45,714 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 09:02:45,715 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 09:02:45,716 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 09:02:45,717 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_6aa20dc8-8a2b-474f-9d5b-a6e6ac0540b4/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-10-22 09:02:45,732 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 09:02:45,732 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 09:02:45,733 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 09:02:45,733 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 09:02:45,734 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 09:02:45,734 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-10-22 09:02:45,734 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-10-22 09:02:45,734 INFO L138 SettingsManager]: * Use old map elimination=false [2019-10-22 09:02:45,734 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-10-22 09:02:45,735 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-10-22 09:02:45,735 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-10-22 09:02:45,735 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 09:02:45,736 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 09:02:45,736 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 09:02:45,736 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 09:02:45,736 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 09:02:45,736 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 09:02:45,737 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-10-22 09:02:45,737 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-10-22 09:02:45,737 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-10-22 09:02:45,737 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 09:02:45,737 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 09:02:45,737 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-10-22 09:02:45,738 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 09:02:45,738 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-10-22 09:02:45,738 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 09:02:45,738 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 09:02:45,739 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-10-22 09:02:45,739 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 09:02:45,739 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 09:02:45,740 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-10-22 09:02:45,741 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-10-22 09:02:45,741 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR 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 -> /tmp/vcloud-vcloud-master/worker/working_dir_6aa20dc8-8a2b-474f-9d5b-a6e6ac0540b4/bin/uautomizer 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 -> 525453629ce87b69ed1d4100e13fdb9e0c8a872a [2019-10-22 09:02:45,772 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 09:02:45,787 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 09:02:45,790 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 09:02:45,793 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 09:02:45,793 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 09:02:45,794 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_6aa20dc8-8a2b-474f-9d5b-a6e6ac0540b4/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec3_product56.cil.c [2019-10-22 09:02:45,857 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_6aa20dc8-8a2b-474f-9d5b-a6e6ac0540b4/bin/uautomizer/data/f9118ec52/436b2d94460a4eb89559be2357b664ce/FLAG79a683927 [2019-10-22 09:02:46,344 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 09:02:46,344 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_6aa20dc8-8a2b-474f-9d5b-a6e6ac0540b4/sv-benchmarks/c/product-lines/minepump_spec3_product56.cil.c [2019-10-22 09:02:46,356 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_6aa20dc8-8a2b-474f-9d5b-a6e6ac0540b4/bin/uautomizer/data/f9118ec52/436b2d94460a4eb89559be2357b664ce/FLAG79a683927 [2019-10-22 09:02:46,671 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_6aa20dc8-8a2b-474f-9d5b-a6e6ac0540b4/bin/uautomizer/data/f9118ec52/436b2d94460a4eb89559be2357b664ce [2019-10-22 09:02:46,674 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 09:02:46,675 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 09:02:46,676 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 09:02:46,677 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 09:02:46,681 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 09:02:46,682 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:02:46" (1/1) ... [2019-10-22 09:02:46,685 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8bf45f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:46, skipping insertion in model container [2019-10-22 09:02:46,685 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:02:46" (1/1) ... [2019-10-22 09:02:46,693 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 09:02:46,743 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 09:02:47,105 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:02:47,120 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 09:02:47,208 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:02:47,246 INFO L192 MainTranslator]: Completed translation [2019-10-22 09:02:47,246 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:47 WrapperNode [2019-10-22 09:02:47,247 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 09:02:47,248 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 09:02:47,248 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 09:02:47,248 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 09:02:47,258 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:47" (1/1) ... [2019-10-22 09:02:47,287 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:47" (1/1) ... [2019-10-22 09:02:47,375 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 09:02:47,375 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 09:02:47,376 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 09:02:47,376 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 09:02:47,387 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:47" (1/1) ... [2019-10-22 09:02:47,387 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:47" (1/1) ... [2019-10-22 09:02:47,391 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:47" (1/1) ... [2019-10-22 09:02:47,391 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:47" (1/1) ... [2019-10-22 09:02:47,407 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:47" (1/1) ... [2019-10-22 09:02:47,422 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:47" (1/1) ... [2019-10-22 09:02:47,426 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:47" (1/1) ... [2019-10-22 09:02:47,445 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 09:02:47,445 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 09:02:47,445 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 09:02:47,446 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 09:02:47,447 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:47" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6aa20dc8-8a2b-474f-9d5b-a6e6ac0540b4/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 09:02:47,509 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 09:02:47,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-22 09:02:47,509 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 09:02:47,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 09:02:48,556 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 09:02:48,556 INFO L284 CfgBuilder]: Removed 288 assume(true) statements. [2019-10-22 09:02:48,557 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:02:48 BoogieIcfgContainer [2019-10-22 09:02:48,558 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 09:02:48,558 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-10-22 09:02:48,558 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-10-22 09:02:48,562 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-10-22 09:02:48,563 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 09:02:48,563 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.10 09:02:46" (1/3) ... [2019-10-22 09:02:48,565 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@775a441b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.10 09:02:48, skipping insertion in model container [2019-10-22 09:02:48,565 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 09:02:48,565 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:47" (2/3) ... [2019-10-22 09:02:48,566 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@775a441b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.10 09:02:48, skipping insertion in model container [2019-10-22 09:02:48,566 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 09:02:48,566 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:02:48" (3/3) ... [2019-10-22 09:02:48,568 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product56.cil.c [2019-10-22 09:02:48,618 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-10-22 09:02:48,618 INFO L357 BuchiCegarLoop]: Hoare is false [2019-10-22 09:02:48,618 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-10-22 09:02:48,618 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 09:02:48,618 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 09:02:48,619 INFO L361 BuchiCegarLoop]: Difference is false [2019-10-22 09:02:48,619 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 09:02:48,619 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-10-22 09:02:48,644 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 194 states. [2019-10-22 09:02:48,683 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 127 [2019-10-22 09:02:48,684 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 09:02:48,684 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 09:02:48,696 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-10-22 09:02:48,696 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:02:48,696 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-10-22 09:02:48,696 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 194 states. [2019-10-22 09:02:48,708 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 127 [2019-10-22 09:02:48,712 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 09:02:48,712 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 09:02:48,713 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-10-22 09:02:48,714 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:02:48,720 INFO L791 eck$LassoCheckResult]: Stem: 74#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(30);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(9);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(21);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(30);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(9);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(25);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(30);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(9);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(13);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string43.base, #t~string43.offset, 1);call write~init~int(77, #t~string43.base, 1 + #t~string43.offset, 1);call write~init~int(101, #t~string43.base, 2 + #t~string43.offset, 1);call write~init~int(116, #t~string43.base, 3 + #t~string43.offset, 1);call write~init~int(104, #t~string43.base, 4 + #t~string43.offset, 1);call write~init~int(58, #t~string43.base, 5 + #t~string43.offset, 1);call write~init~int(0, #t~string43.base, 6 + #t~string43.offset, 1);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string45.base, #t~string45.offset, 1);call write~init~int(82, #t~string45.base, 1 + #t~string45.offset, 1);call write~init~int(73, #t~string45.base, 2 + #t~string45.offset, 1);call write~init~int(84, #t~string45.base, 3 + #t~string45.offset, 1);call write~init~int(0, #t~string45.base, 4 + #t~string45.offset, 1);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string47.base, #t~string47.offset, 1);call write~init~int(75, #t~string47.base, 1 + #t~string47.offset, 1);call write~init~int(0, #t~string47.base, 2 + #t~string47.offset, 1);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string49.base, #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 1 + #t~string49.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(13);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string57.base, #t~string57.offset, 1);call write~init~int(110, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 2 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string59.base, #t~string59.offset, 1);call write~init~int(102, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(102, #t~string59.base, 2 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 3 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string61.base, #t~string61.offset, 1);call write~init~int(80, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(117, #t~string61.base, 2 + #t~string61.offset, 1);call write~init~int(109, #t~string61.base, 3 + #t~string61.offset, 1);call write~init~int(112, #t~string61.base, 4 + #t~string61.offset, 1);call write~init~int(58, #t~string61.base, 5 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 6 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(110, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 2 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 3 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string67.base, #t~string67.offset, 1);call write~init~int(32, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 2 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string69.base, #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 1 + #t~string69.offset, 1); 3#L-1true havoc main_#res;havoc main_#t~ret0, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 28#L532true havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 160#L540true main_#t~ret0 := valid_product_#res;main_~tmp~0 := main_#t~ret0;havoc main_#t~ret0; 62#L130true assume 0 != main_~tmp~0; 11#L103true havoc test_#t~nondet72, test_#t~nondet73, test_#t~nondet74, test_#t~nondet75, test_~splverifierCounter~0, test_~tmp~10, test_~tmp___0~3, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~10;havoc test_~tmp___0~3;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 168#L564-1true [2019-10-22 09:02:48,731 INFO L793 eck$LassoCheckResult]: Loop: 168#L564-1true assume !false; 9#L951true assume test_~splverifierCounter~0 < 4; 76#L952true test_~tmp~10 := test_#t~nondet72;havoc test_#t~nondet72; 187#L960true assume !(0 != test_~tmp~10); 189#L960-1true test_~tmp___0~3 := test_#t~nondet73;havoc test_#t~nondet73; 144#L970true assume !(0 != test_~tmp___0~3); 120#L970-1true test_~tmp___2~0 := test_#t~nondet74;havoc test_#t~nondet74; 70#L980true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 176#L988-1true assume !(0 != ~pumpRunning~0); 193#L701true assume !(0 != ~systemActive~0); 41#L708true havoc __utac_acc__Specification3_spec__1_#t~ret37, __utac_acc__Specification3_spec__1_#t~ret38, __utac_acc__Specification3_spec__1_#t~ret39, __utac_acc__Specification3_spec__1_~tmp~4, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~4;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 183#L630-1true __utac_acc__Specification3_spec__1_#t~ret37 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~4 := __utac_acc__Specification3_spec__1_#t~ret37;havoc __utac_acc__Specification3_spec__1_#t~ret37; 185#L558true assume 0 != __utac_acc__Specification3_spec__1_~tmp~4; 168#L564-1true [2019-10-22 09:02:48,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:48,737 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2019-10-22 09:02:48,746 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:48,746 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371003008] [2019-10-22 09:02:48,746 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:48,747 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:48,747 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:49,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:02:49,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:02:49,720 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:02:49,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:49,722 INFO L82 PathProgramCache]: Analyzing trace with hash -1666938241, now seen corresponding path program 1 times [2019-10-22 09:02:49,722 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:49,722 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190875544] [2019-10-22 09:02:49,723 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:49,723 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:49,724 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:49,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:49,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:02:49,787 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190875544] [2019-10-22 09:02:49,788 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:02:49,789 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 09:02:49,789 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136033999] [2019-10-22 09:02:49,795 INFO L808 eck$LassoCheckResult]: loop already infeasible [2019-10-22 09:02:49,797 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:02:49,815 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 09:02:49,816 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 09:02:49,818 INFO L87 Difference]: Start difference. First operand 194 states. Second operand 3 states. [2019-10-22 09:02:49,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:02:49,940 INFO L93 Difference]: Finished difference Result 382 states and 570 transitions. [2019-10-22 09:02:49,941 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 09:02:49,943 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 382 states and 570 transitions. [2019-10-22 09:02:49,951 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 250 [2019-10-22 09:02:49,963 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 382 states to 368 states and 555 transitions. [2019-10-22 09:02:49,965 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 368 [2019-10-22 09:02:49,967 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 368 [2019-10-22 09:02:49,968 INFO L73 IsDeterministic]: Start isDeterministic. Operand 368 states and 555 transitions. [2019-10-22 09:02:49,971 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-10-22 09:02:49,979 INFO L688 BuchiCegarLoop]: Abstraction has 368 states and 555 transitions. [2019-10-22 09:02:50,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 368 states and 555 transitions. [2019-10-22 09:02:50,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 368 to 366. [2019-10-22 09:02:50,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 366 states. [2019-10-22 09:02:50,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 552 transitions. [2019-10-22 09:02:50,034 INFO L711 BuchiCegarLoop]: Abstraction has 366 states and 552 transitions. [2019-10-22 09:02:50,034 INFO L591 BuchiCegarLoop]: Abstraction has 366 states and 552 transitions. [2019-10-22 09:02:50,034 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-10-22 09:02:50,034 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 366 states and 552 transitions. [2019-10-22 09:02:50,043 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 248 [2019-10-22 09:02:50,044 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 09:02:50,044 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 09:02:50,045 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-10-22 09:02:50,045 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:02:50,045 INFO L791 eck$LassoCheckResult]: Stem: 769#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(30);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(9);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(21);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(30);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(9);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(25);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(30);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(9);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(13);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string43.base, #t~string43.offset, 1);call write~init~int(77, #t~string43.base, 1 + #t~string43.offset, 1);call write~init~int(101, #t~string43.base, 2 + #t~string43.offset, 1);call write~init~int(116, #t~string43.base, 3 + #t~string43.offset, 1);call write~init~int(104, #t~string43.base, 4 + #t~string43.offset, 1);call write~init~int(58, #t~string43.base, 5 + #t~string43.offset, 1);call write~init~int(0, #t~string43.base, 6 + #t~string43.offset, 1);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string45.base, #t~string45.offset, 1);call write~init~int(82, #t~string45.base, 1 + #t~string45.offset, 1);call write~init~int(73, #t~string45.base, 2 + #t~string45.offset, 1);call write~init~int(84, #t~string45.base, 3 + #t~string45.offset, 1);call write~init~int(0, #t~string45.base, 4 + #t~string45.offset, 1);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string47.base, #t~string47.offset, 1);call write~init~int(75, #t~string47.base, 1 + #t~string47.offset, 1);call write~init~int(0, #t~string47.base, 2 + #t~string47.offset, 1);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string49.base, #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 1 + #t~string49.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(13);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string57.base, #t~string57.offset, 1);call write~init~int(110, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 2 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string59.base, #t~string59.offset, 1);call write~init~int(102, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(102, #t~string59.base, 2 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 3 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string61.base, #t~string61.offset, 1);call write~init~int(80, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(117, #t~string61.base, 2 + #t~string61.offset, 1);call write~init~int(109, #t~string61.base, 3 + #t~string61.offset, 1);call write~init~int(112, #t~string61.base, 4 + #t~string61.offset, 1);call write~init~int(58, #t~string61.base, 5 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 6 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(110, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 2 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 3 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string67.base, #t~string67.offset, 1);call write~init~int(32, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 2 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string69.base, #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 1 + #t~string69.offset, 1); 599#L-1 havoc main_#res;havoc main_#t~ret0, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 600#L532 havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 710#L540 main_#t~ret0 := valid_product_#res;main_~tmp~0 := main_#t~ret0;havoc main_#t~ret0; 748#L130 assume 0 != main_~tmp~0; 632#L103 havoc test_#t~nondet72, test_#t~nondet73, test_#t~nondet74, test_#t~nondet75, test_~splverifierCounter~0, test_~tmp~10, test_~tmp___0~3, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~10;havoc test_~tmp___0~3;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 633#L564-1 [2019-10-22 09:02:50,045 INFO L793 eck$LassoCheckResult]: Loop: 633#L564-1 assume !false; 627#L951 assume test_~splverifierCounter~0 < 4; 628#L952 test_~tmp~10 := test_#t~nondet72;havoc test_#t~nondet72; 779#L960 assume !(0 != test_~tmp~10); 792#L960-1 test_~tmp___0~3 := test_#t~nondet73;havoc test_#t~nondet73; 800#L970 assume !(0 != test_~tmp___0~3); 856#L970-1 test_~tmp___2~0 := test_#t~nondet74;havoc test_#t~nondet74; 855#L980 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 763#L988-1 assume !(0 != ~pumpRunning~0); 802#L701 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret52, processEnvironment_~tmp~7;havoc processEnvironment_~tmp~7; 751#L785 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__lowWaterSensor_#t~ret51, processEnvironment__wrappee__lowWaterSensor_~tmp~6;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~6; 753#L759-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret50, processEnvironment__wrappee__highWaterSensor_~tmp~5;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5; 727#L733-3 assume !(0 == ~pumpRunning~0); 591#L708 havoc __utac_acc__Specification3_spec__1_#t~ret37, __utac_acc__Specification3_spec__1_#t~ret38, __utac_acc__Specification3_spec__1_#t~ret39, __utac_acc__Specification3_spec__1_~tmp~4, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~4;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 733#L630-1 __utac_acc__Specification3_spec__1_#t~ret37 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~4 := __utac_acc__Specification3_spec__1_#t~ret37;havoc __utac_acc__Specification3_spec__1_#t~ret37; 785#L558 assume 0 != __utac_acc__Specification3_spec__1_~tmp~4; 633#L564-1 [2019-10-22 09:02:50,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:50,046 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2019-10-22 09:02:50,046 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:50,046 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822031124] [2019-10-22 09:02:50,046 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:50,047 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:50,047 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:50,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:02:50,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:02:50,583 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:02:50,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:50,583 INFO L82 PathProgramCache]: Analyzing trace with hash 558894441, now seen corresponding path program 1 times [2019-10-22 09:02:50,584 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:50,585 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880261767] [2019-10-22 09:02:50,585 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:50,586 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:50,586 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:50,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:50,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:02:50,648 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880261767] [2019-10-22 09:02:50,649 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:02:50,649 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 09:02:50,649 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772771059] [2019-10-22 09:02:50,649 INFO L808 eck$LassoCheckResult]: loop already infeasible [2019-10-22 09:02:50,650 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:02:50,650 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 09:02:50,650 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 09:02:50,650 INFO L87 Difference]: Start difference. First operand 366 states and 552 transitions. cyclomatic complexity: 189 Second operand 3 states. [2019-10-22 09:02:50,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:02:50,818 INFO L93 Difference]: Finished difference Result 389 states and 550 transitions. [2019-10-22 09:02:50,818 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 09:02:50,819 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 389 states and 550 transitions. [2019-10-22 09:02:50,822 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 271 [2019-10-22 09:02:50,828 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 389 states to 389 states and 550 transitions. [2019-10-22 09:02:50,831 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 389 [2019-10-22 09:02:50,832 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 389 [2019-10-22 09:02:50,832 INFO L73 IsDeterministic]: Start isDeterministic. Operand 389 states and 550 transitions. [2019-10-22 09:02:50,834 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-10-22 09:02:50,835 INFO L688 BuchiCegarLoop]: Abstraction has 389 states and 550 transitions. [2019-10-22 09:02:50,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states and 550 transitions. [2019-10-22 09:02:50,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 389. [2019-10-22 09:02:50,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 389 states. [2019-10-22 09:02:50,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 389 states and 550 transitions. [2019-10-22 09:02:50,867 INFO L711 BuchiCegarLoop]: Abstraction has 389 states and 550 transitions. [2019-10-22 09:02:50,867 INFO L591 BuchiCegarLoop]: Abstraction has 389 states and 550 transitions. [2019-10-22 09:02:50,867 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-10-22 09:02:50,867 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 389 states and 550 transitions. [2019-10-22 09:02:50,870 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 271 [2019-10-22 09:02:50,870 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 09:02:50,870 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 09:02:50,871 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-10-22 09:02:50,874 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:02:50,874 INFO L791 eck$LassoCheckResult]: Stem: 1515#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(30);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(9);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(21);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(30);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(9);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(25);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(30);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(9);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(13);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string43.base, #t~string43.offset, 1);call write~init~int(77, #t~string43.base, 1 + #t~string43.offset, 1);call write~init~int(101, #t~string43.base, 2 + #t~string43.offset, 1);call write~init~int(116, #t~string43.base, 3 + #t~string43.offset, 1);call write~init~int(104, #t~string43.base, 4 + #t~string43.offset, 1);call write~init~int(58, #t~string43.base, 5 + #t~string43.offset, 1);call write~init~int(0, #t~string43.base, 6 + #t~string43.offset, 1);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string45.base, #t~string45.offset, 1);call write~init~int(82, #t~string45.base, 1 + #t~string45.offset, 1);call write~init~int(73, #t~string45.base, 2 + #t~string45.offset, 1);call write~init~int(84, #t~string45.base, 3 + #t~string45.offset, 1);call write~init~int(0, #t~string45.base, 4 + #t~string45.offset, 1);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string47.base, #t~string47.offset, 1);call write~init~int(75, #t~string47.base, 1 + #t~string47.offset, 1);call write~init~int(0, #t~string47.base, 2 + #t~string47.offset, 1);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string49.base, #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 1 + #t~string49.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(13);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string57.base, #t~string57.offset, 1);call write~init~int(110, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 2 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string59.base, #t~string59.offset, 1);call write~init~int(102, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(102, #t~string59.base, 2 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 3 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string61.base, #t~string61.offset, 1);call write~init~int(80, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(117, #t~string61.base, 2 + #t~string61.offset, 1);call write~init~int(109, #t~string61.base, 3 + #t~string61.offset, 1);call write~init~int(112, #t~string61.base, 4 + #t~string61.offset, 1);call write~init~int(58, #t~string61.base, 5 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 6 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(110, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 2 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 3 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string67.base, #t~string67.offset, 1);call write~init~int(32, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 2 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string69.base, #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 1 + #t~string69.offset, 1); 1355#L-1 havoc main_#res;havoc main_#t~ret0, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 1356#L532 havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 1451#L540 main_#t~ret0 := valid_product_#res;main_~tmp~0 := main_#t~ret0;havoc main_#t~ret0; 1496#L130 assume 0 != main_~tmp~0; 1382#L103 havoc test_#t~nondet72, test_#t~nondet73, test_#t~nondet74, test_#t~nondet75, test_~splverifierCounter~0, test_~tmp~10, test_~tmp___0~3, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~10;havoc test_~tmp___0~3;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1383#L564-1 [2019-10-22 09:02:50,874 INFO L793 eck$LassoCheckResult]: Loop: 1383#L564-1 assume !false; 1572#L951 assume test_~splverifierCounter~0 < 4; 1573#L952 test_~tmp~10 := test_#t~nondet72;havoc test_#t~nondet72; 1569#L960 assume !(0 != test_~tmp~10); 1568#L960-1 test_~tmp___0~3 := test_#t~nondet73;havoc test_#t~nondet73; 1564#L970 assume !(0 != test_~tmp___0~3); 1563#L970-1 test_~tmp___2~0 := test_#t~nondet74;havoc test_#t~nondet74; 1555#L980 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 1556#L988-1 assume !(0 != ~pumpRunning~0); 1626#L701 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret52, processEnvironment_~tmp~7;havoc processEnvironment_~tmp~7; 1497#L785 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__lowWaterSensor_#t~ret51, processEnvironment__wrappee__lowWaterSensor_~tmp~6;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~6; 1498#L759-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret50, processEnvironment__wrappee__highWaterSensor_~tmp~5;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5; 1544#L733-3 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret70, isHighWaterLevel_~retValue_acc~12, isHighWaterLevel_~tmp~8, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~12;havoc isHighWaterLevel_~tmp~8;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~8;havoc isHighWaterSensorDry_~retValue_acc~8; 1615#L670-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~8; 1612#L675-3 isHighWaterLevel_#t~ret70 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~8 := isHighWaterLevel_#t~ret70;havoc isHighWaterLevel_#t~ret70; 1609#L887-9 assume 0 != isHighWaterLevel_~tmp~8;isHighWaterLevel_~tmp___0~1 := 0; 1605#L887-11 isHighWaterLevel_~retValue_acc~12 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~12; 1604#L893-3 processEnvironment__wrappee__highWaterSensor_#t~ret50 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~5 := processEnvironment__wrappee__highWaterSensor_#t~ret50;havoc processEnvironment__wrappee__highWaterSensor_#t~ret50; 1532#L737-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~5); 1533#L708 havoc __utac_acc__Specification3_spec__1_#t~ret37, __utac_acc__Specification3_spec__1_#t~ret38, __utac_acc__Specification3_spec__1_#t~ret39, __utac_acc__Specification3_spec__1_~tmp~4, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~4;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 1530#L630-1 __utac_acc__Specification3_spec__1_#t~ret37 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~4 := __utac_acc__Specification3_spec__1_#t~ret37;havoc __utac_acc__Specification3_spec__1_#t~ret37; 1531#L558 assume 0 != __utac_acc__Specification3_spec__1_~tmp~4; 1383#L564-1 [2019-10-22 09:02:50,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:50,875 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2019-10-22 09:02:50,875 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:50,875 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038841381] [2019-10-22 09:02:50,875 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:50,876 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:50,876 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:51,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:02:51,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:02:51,259 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:02:51,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:51,260 INFO L82 PathProgramCache]: Analyzing trace with hash 222495861, now seen corresponding path program 1 times [2019-10-22 09:02:51,260 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:51,260 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597163272] [2019-10-22 09:02:51,260 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:51,261 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:51,261 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:51,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:02:51,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:02:51,273 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:02:51,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:51,274 INFO L82 PathProgramCache]: Analyzing trace with hash 1475800987, now seen corresponding path program 1 times [2019-10-22 09:02:51,274 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:51,274 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464246840] [2019-10-22 09:02:51,274 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:51,275 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:51,275 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:51,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:51,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:02:51,330 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464246840] [2019-10-22 09:02:51,330 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:02:51,331 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 09:02:51,331 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302740332] [2019-10-22 09:02:51,453 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 49 [2019-10-22 09:02:51,516 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:02:51,516 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 09:02:51,516 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 09:02:51,517 INFO L87 Difference]: Start difference. First operand 389 states and 550 transitions. cyclomatic complexity: 164 Second operand 5 states. [2019-10-22 09:02:51,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:02:51,717 INFO L93 Difference]: Finished difference Result 1302 states and 1843 transitions. [2019-10-22 09:02:51,717 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-22 09:02:51,717 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1302 states and 1843 transitions. [2019-10-22 09:02:51,731 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 962 [2019-10-22 09:02:51,739 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1302 states to 1302 states and 1843 transitions. [2019-10-22 09:02:51,742 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1302 [2019-10-22 09:02:51,743 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1302 [2019-10-22 09:02:51,744 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1302 states and 1843 transitions. [2019-10-22 09:02:51,748 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-10-22 09:02:51,752 INFO L688 BuchiCegarLoop]: Abstraction has 1302 states and 1843 transitions. [2019-10-22 09:02:51,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1302 states and 1843 transitions. [2019-10-22 09:02:51,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1302 to 772. [2019-10-22 09:02:51,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 772 states. [2019-10-22 09:02:51,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 772 states to 772 states and 1078 transitions. [2019-10-22 09:02:51,776 INFO L711 BuchiCegarLoop]: Abstraction has 772 states and 1078 transitions. [2019-10-22 09:02:51,777 INFO L591 BuchiCegarLoop]: Abstraction has 772 states and 1078 transitions. [2019-10-22 09:02:51,777 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-10-22 09:02:51,777 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 772 states and 1078 transitions. [2019-10-22 09:02:51,782 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 542 [2019-10-22 09:02:51,782 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 09:02:51,782 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 09:02:51,783 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-10-22 09:02:51,784 INFO L850 BuchiCegarLoop]: Counterexample loop 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] [2019-10-22 09:02:51,784 INFO L791 eck$LassoCheckResult]: Stem: 3217#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(30);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(9);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(21);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(30);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(9);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(25);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(30);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(9);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(13);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string43.base, #t~string43.offset, 1);call write~init~int(77, #t~string43.base, 1 + #t~string43.offset, 1);call write~init~int(101, #t~string43.base, 2 + #t~string43.offset, 1);call write~init~int(116, #t~string43.base, 3 + #t~string43.offset, 1);call write~init~int(104, #t~string43.base, 4 + #t~string43.offset, 1);call write~init~int(58, #t~string43.base, 5 + #t~string43.offset, 1);call write~init~int(0, #t~string43.base, 6 + #t~string43.offset, 1);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string45.base, #t~string45.offset, 1);call write~init~int(82, #t~string45.base, 1 + #t~string45.offset, 1);call write~init~int(73, #t~string45.base, 2 + #t~string45.offset, 1);call write~init~int(84, #t~string45.base, 3 + #t~string45.offset, 1);call write~init~int(0, #t~string45.base, 4 + #t~string45.offset, 1);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string47.base, #t~string47.offset, 1);call write~init~int(75, #t~string47.base, 1 + #t~string47.offset, 1);call write~init~int(0, #t~string47.base, 2 + #t~string47.offset, 1);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string49.base, #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 1 + #t~string49.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(13);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string57.base, #t~string57.offset, 1);call write~init~int(110, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 2 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string59.base, #t~string59.offset, 1);call write~init~int(102, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(102, #t~string59.base, 2 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 3 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string61.base, #t~string61.offset, 1);call write~init~int(80, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(117, #t~string61.base, 2 + #t~string61.offset, 1);call write~init~int(109, #t~string61.base, 3 + #t~string61.offset, 1);call write~init~int(112, #t~string61.base, 4 + #t~string61.offset, 1);call write~init~int(58, #t~string61.base, 5 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 6 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(110, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 2 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 3 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string67.base, #t~string67.offset, 1);call write~init~int(32, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 2 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string69.base, #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 1 + #t~string69.offset, 1); 3064#L-1 havoc main_#res;havoc main_#t~ret0, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 3065#L532 havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 3160#L540 main_#t~ret0 := valid_product_#res;main_~tmp~0 := main_#t~ret0;havoc main_#t~ret0; 3196#L130 assume 0 != main_~tmp~0; 3091#L103 havoc test_#t~nondet72, test_#t~nondet73, test_#t~nondet74, test_#t~nondet75, test_~splverifierCounter~0, test_~tmp~10, test_~tmp___0~3, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~10;havoc test_~tmp___0~3;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 3092#L564-1 [2019-10-22 09:02:51,784 INFO L793 eck$LassoCheckResult]: Loop: 3092#L564-1 assume !false; 3086#L951 assume test_~splverifierCounter~0 < 4; 3087#L952 test_~tmp~10 := test_#t~nondet72;havoc test_#t~nondet72; 3227#L960 assume !(0 != test_~tmp~10); 3237#L960-1 test_~tmp___0~3 := test_#t~nondet73;havoc test_#t~nondet73; 3155#L970 assume !(0 != test_~tmp___0~3); 3156#L970-1 test_~tmp___2~0 := test_#t~nondet74;havoc test_#t~nondet74; 3491#L980 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 3207#L988-1 assume !(0 != ~pumpRunning~0); 3224#L701 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret52, processEnvironment_~tmp~7;havoc processEnvironment_~tmp~7; 3245#L785 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__lowWaterSensor_#t~ret51, processEnvironment__wrappee__lowWaterSensor_~tmp~6;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~6; 3471#L759-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret50, processEnvironment__wrappee__highWaterSensor_~tmp~5;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5; 3470#L733-3 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret70, isHighWaterLevel_~retValue_acc~12, isHighWaterLevel_~tmp~8, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~12;havoc isHighWaterLevel_~tmp~8;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~8;havoc isHighWaterSensorDry_~retValue_acc~8; 3468#L670-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~8; 3466#L675-3 isHighWaterLevel_#t~ret70 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~8 := isHighWaterLevel_#t~ret70;havoc isHighWaterLevel_#t~ret70; 3463#L887-9 assume 0 != isHighWaterLevel_~tmp~8;isHighWaterLevel_~tmp___0~1 := 0; 3461#L887-11 isHighWaterLevel_~retValue_acc~12 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~12; 3459#L893-3 processEnvironment__wrappee__highWaterSensor_#t~ret50 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~5 := processEnvironment__wrappee__highWaterSensor_#t~ret50;havoc processEnvironment__wrappee__highWaterSensor_#t~ret50; 3436#L737-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~5); 3058#L708 havoc __utac_acc__Specification3_spec__1_#t~ret37, __utac_acc__Specification3_spec__1_#t~ret38, __utac_acc__Specification3_spec__1_#t~ret39, __utac_acc__Specification3_spec__1_~tmp~4, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~4;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 3175#L630-1 __utac_acc__Specification3_spec__1_#t~ret37 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~4 := __utac_acc__Specification3_spec__1_#t~ret37;havoc __utac_acc__Specification3_spec__1_#t~ret37; 3233#L558 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~4);havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~7;havoc getWaterLevel_~retValue_acc~7;getWaterLevel_~retValue_acc~7 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~7; 3097#L662 __utac_acc__Specification3_spec__1_#t~ret38 := getWaterLevel_#res;__utac_acc__Specification3_spec__1_~tmp___0~0 := __utac_acc__Specification3_spec__1_#t~ret38;havoc __utac_acc__Specification3_spec__1_#t~ret38; 3098#L564 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~0); 3092#L564-1 [2019-10-22 09:02:51,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:51,785 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 4 times [2019-10-22 09:02:51,785 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:51,785 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247246943] [2019-10-22 09:02:51,785 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:51,785 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:51,786 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:51,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:02:52,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:02:52,149 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:02:52,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:52,150 INFO L82 PathProgramCache]: Analyzing trace with hash -929830745, now seen corresponding path program 1 times [2019-10-22 09:02:52,151 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:52,151 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [202623492] [2019-10-22 09:02:52,151 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:52,151 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:52,151 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:52,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:02:52,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:02:52,165 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:02:52,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:52,171 INFO L82 PathProgramCache]: Analyzing trace with hash 905552461, now seen corresponding path program 1 times [2019-10-22 09:02:52,171 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:52,171 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32896467] [2019-10-22 09:02:52,171 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:52,171 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:52,172 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:52,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:02:52,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:02:52,609 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:02:52,778 WARN L191 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2019-10-22 09:03:11,624 WARN L191 SmtUtils]: Spent 18.75 s on a formula simplification. DAG size of input: 451 DAG size of output: 449 [2019-10-22 09:03:19,461 WARN L191 SmtUtils]: Spent 7.84 s on a formula simplification that was a NOOP. DAG size: 449 [2019-10-22 09:03:19,526 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.10 09:03:19 BoogieIcfgContainer [2019-10-22 09:03:19,526 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-10-22 09:03:19,526 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 09:03:19,526 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 09:03:19,526 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 09:03:19,527 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:02:48" (3/4) ... [2019-10-22 09:03:19,530 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-10-22 09:03:19,576 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_6aa20dc8-8a2b-474f-9d5b-a6e6ac0540b4/bin/uautomizer/witness.graphml [2019-10-22 09:03:19,576 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 09:03:19,577 INFO L168 Benchmark]: Toolchain (without parser) took 32902.58 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 367.5 MB). Free memory was 945.9 MB in the beginning and 1.1 GB in the end (delta: -127.2 MB). Peak memory consumption was 240.3 MB. Max. memory is 11.5 GB. [2019-10-22 09:03:19,577 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 962.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:03:19,578 INFO L168 Benchmark]: CACSL2BoogieTranslator took 570.81 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.4 MB). Free memory was 940.5 MB in the beginning and 1.1 GB in the end (delta: -164.3 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. [2019-10-22 09:03:19,578 INFO L168 Benchmark]: Boogie Procedure Inliner took 127.62 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. [2019-10-22 09:03:19,578 INFO L168 Benchmark]: Boogie Preprocessor took 69.48 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-10-22 09:03:19,579 INFO L168 Benchmark]: RCFGBuilder took 1112.56 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 82.9 MB). Peak memory consumption was 82.9 MB. Max. memory is 11.5 GB. [2019-10-22 09:03:19,579 INFO L168 Benchmark]: BuchiAutomizer took 30967.63 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 240.1 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -64.4 MB). Peak memory consumption was 387.6 MB. Max. memory is 11.5 GB. [2019-10-22 09:03:19,580 INFO L168 Benchmark]: Witness Printer took 50.06 ms. Allocated memory is still 1.4 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 11.5 GB. [2019-10-22 09:03:19,582 INFO L335 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 1.0 GB. Free memory is still 962.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 570.81 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.4 MB). Free memory was 940.5 MB in the beginning and 1.1 GB in the end (delta: -164.3 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 127.62 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 69.48 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1112.56 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 82.9 MB). Peak memory consumption was 82.9 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 30967.63 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 240.1 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -64.4 MB). Peak memory consumption was 387.6 MB. Max. memory is 11.5 GB. * Witness Printer took 50.06 ms. Allocated memory is still 1.4 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 5 locations. The remainder module has 772 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 30.8s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 30.0s. Construction of modules took 0.2s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 532 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 772 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 834 SDtfs, 1341 SDslu, 1392 SDs, 0 SdLazy, 122 SolverSat, 62 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time LassoAnalysisResults: nont1 unkn0 SFLI2 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: 950]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=7418} State at position 1 is {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6c802b4e=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@41a2ad5=0, NULL=7416, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6537262f=0, NULL=0, NULL=7418, NULL=0, NULL=0, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5a802b9c=0, NULL=-2, NULL=0, tmp___1=0, NULL=-9, NULL=-11, NULL=-15, cleanupTimeShifts=4, tmp=0, NULL=-6, NULL=0, waterLevel=1, NULL=0, NULL=0, \result=1, head=0, pumpRunning=0, retValue_acc=1, tmp=1, NULL=1446, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1df29b2f=0, NULL=0, \result=1, NULL=-4, retValue_acc=0, tmp___0=0, tmp=1, retValue_acc=1, NULL=-16, NULL=-10, head=0, NULL=0, NULL=-19, NULL=-3, tmp=0, NULL=0, NULL=7417, NULL=0, retValue_acc=0, NULL=0, NULL=1445, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4387c267=0, tmp___0=0, NULL=0, NULL=0, NULL=-5, tmp=0, tmp___0=1, NULL=-20, NULL=-1, tmp=0, NULL=0, NULL=0, NULL=0, systemActive=1, NULL=-18, \result=1, NULL=0, retValue_acc=0, \result=0, NULL=-7, NULL=0, NULL=0, NULL=-8, \result=0, NULL=-21, NULL=0, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@51742b0c=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2d6c511e=55, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@97b0952=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@39064e22=0, NULL=-13, NULL=-17, tmp=0, tmp___2=55, splverifierCounter=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7eb3788b=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2019c137=0, tmp___1=0, NULL=0, NULL=-14, NULL=0, NULL=0, NULL=-12} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L40] int cleanupTimeShifts = 4; [L313] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L587] int waterLevel = 1; [L588] int methaneLevelCritical = 0; [L694] int pumpRunning = 0; [L695] int systemActive = 1; [L121] int retValue_acc ; [L122] int tmp ; [L536] int retValue_acc ; [L539] retValue_acc = 1 [L540] return (retValue_acc); [L128] tmp = valid_product() [L130] COND TRUE \read(tmp) [L941] int splverifierCounter ; [L942] int tmp ; [L943] int tmp___0 ; [L944] int tmp___1 ; [L945] int tmp___2 ; [L948] splverifierCounter = 0 Loop: [L950] COND TRUE 1 [L952] COND TRUE splverifierCounter < 4 [L958] tmp = __VERIFIER_nondet_int() [L960] COND FALSE !(\read(tmp)) [L968] tmp___0 = __VERIFIER_nondet_int() [L970] COND FALSE !(\read(tmp___0)) [L978] tmp___2 = __VERIFIER_nondet_int() [L980] COND TRUE \read(tmp___2) [L935] systemActive = 1 [L701] COND FALSE !(\read(pumpRunning)) [L708] COND TRUE \read(systemActive) [L782] int tmp ; [L785] COND FALSE !(\read(pumpRunning)) [L756] int tmp ; [L759] COND FALSE !(\read(pumpRunning)) [L730] int tmp ; [L733] COND TRUE ! pumpRunning [L879] int retValue_acc ; [L880] int tmp ; [L881] int tmp___0 ; [L667] int retValue_acc ; [L670] COND TRUE waterLevel < 2 [L671] retValue_acc = 1 [L672] return (retValue_acc); [L885] tmp = isHighWaterSensorDry() [L887] COND TRUE \read(tmp) [L888] tmp___0 = 0 [L892] retValue_acc = tmp___0 [L893] return (retValue_acc); [L735] tmp = isHighWaterLevel() [L737] COND FALSE !(\read(tmp)) [L550] int tmp ; [L551] int tmp___0 ; [L552] int tmp___1 ; [L626] int retValue_acc ; [L629] retValue_acc = methaneLevelCritical [L630] return (retValue_acc); [L556] tmp = isMethaneLevelCritical() [L558] COND FALSE !(\read(tmp)) [L658] int retValue_acc ; [L661] retValue_acc = waterLevel [L662] return (retValue_acc); [L562] tmp___0 = getWaterLevel() [L564] COND FALSE !(tmp___0 == 2) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...