./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product58.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_181d7cc7-a3f2-4805-bac4-65787677dc34/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_181d7cc7-a3f2-4805-bac4-65787677dc34/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_181d7cc7-a3f2-4805-bac4-65787677dc34/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_181d7cc7-a3f2-4805-bac4-65787677dc34/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product58.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_181d7cc7-a3f2-4805-bac4-65787677dc34/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_181d7cc7-a3f2-4805-bac4-65787677dc34/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 e8e2fe939766c7a542c760a74550866c5b83d51d ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 09:02:25,556 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 09:02:25,558 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 09:02:25,573 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 09:02:25,576 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 09:02:25,577 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 09:02:25,579 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 09:02:25,580 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 09:02:25,582 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 09:02:25,583 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 09:02:25,584 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 09:02:25,585 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 09:02:25,585 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 09:02:25,586 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 09:02:25,587 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 09:02:25,588 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 09:02:25,589 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 09:02:25,590 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 09:02:25,592 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 09:02:25,594 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 09:02:25,596 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 09:02:25,597 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 09:02:25,598 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 09:02:25,599 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 09:02:25,601 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 09:02:25,602 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 09:02:25,602 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 09:02:25,603 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 09:02:25,603 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 09:02:25,604 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 09:02:25,605 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 09:02:25,606 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 09:02:25,614 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 09:02:25,615 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 09:02:25,616 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 09:02:25,616 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 09:02:25,617 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 09:02:25,617 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 09:02:25,617 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 09:02:25,618 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 09:02:25,619 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 09:02:25,620 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_181d7cc7-a3f2-4805-bac4-65787677dc34/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-10-22 09:02:25,634 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 09:02:25,635 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 09:02:25,636 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 09:02:25,636 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 09:02:25,636 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 09:02:25,636 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-10-22 09:02:25,636 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-10-22 09:02:25,637 INFO L138 SettingsManager]: * Use old map elimination=false [2019-10-22 09:02:25,637 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-10-22 09:02:25,637 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-10-22 09:02:25,637 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-10-22 09:02:25,637 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 09:02:25,638 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 09:02:25,638 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 09:02:25,638 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 09:02:25,638 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 09:02:25,638 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 09:02:25,639 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-10-22 09:02:25,639 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-10-22 09:02:25,639 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-10-22 09:02:25,639 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 09:02:25,639 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 09:02:25,639 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-10-22 09:02:25,640 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 09:02:25,640 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-10-22 09:02:25,640 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 09:02:25,640 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 09:02:25,640 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-10-22 09:02:25,641 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 09:02:25,641 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 09:02:25,641 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-10-22 09:02:25,642 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-10-22 09:02:25,642 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_181d7cc7-a3f2-4805-bac4-65787677dc34/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 -> e8e2fe939766c7a542c760a74550866c5b83d51d [2019-10-22 09:02:25,668 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 09:02:25,679 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 09:02:25,688 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 09:02:25,689 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 09:02:25,690 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 09:02:25,690 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_181d7cc7-a3f2-4805-bac4-65787677dc34/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec5_product58.cil.c [2019-10-22 09:02:25,746 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_181d7cc7-a3f2-4805-bac4-65787677dc34/bin/uautomizer/data/f3695275f/b7705f5e4bd14c6fa8fae778e486a469/FLAG88e341042 [2019-10-22 09:02:26,195 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 09:02:26,195 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_181d7cc7-a3f2-4805-bac4-65787677dc34/sv-benchmarks/c/product-lines/minepump_spec5_product58.cil.c [2019-10-22 09:02:26,210 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_181d7cc7-a3f2-4805-bac4-65787677dc34/bin/uautomizer/data/f3695275f/b7705f5e4bd14c6fa8fae778e486a469/FLAG88e341042 [2019-10-22 09:02:26,720 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_181d7cc7-a3f2-4805-bac4-65787677dc34/bin/uautomizer/data/f3695275f/b7705f5e4bd14c6fa8fae778e486a469 [2019-10-22 09:02:26,723 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 09:02:26,724 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 09:02:26,725 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 09:02:26,725 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 09:02:26,729 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 09:02:26,730 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:02:26" (1/1) ... [2019-10-22 09:02:26,733 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5fda6529 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:26, skipping insertion in model container [2019-10-22 09:02:26,734 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:02:26" (1/1) ... [2019-10-22 09:02:26,742 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 09:02:26,800 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 09:02:27,280 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:02:27,301 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 09:02:27,382 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:02:27,413 INFO L192 MainTranslator]: Completed translation [2019-10-22 09:02:27,413 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:27 WrapperNode [2019-10-22 09:02:27,413 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 09:02:27,417 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 09:02:27,417 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 09:02:27,417 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 09:02:27,426 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:27" (1/1) ... [2019-10-22 09:02:27,451 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:27" (1/1) ... [2019-10-22 09:02:27,498 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 09:02:27,499 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 09:02:27,499 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 09:02:27,499 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 09:02:27,515 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:27" (1/1) ... [2019-10-22 09:02:27,515 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:27" (1/1) ... [2019-10-22 09:02:27,521 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:27" (1/1) ... [2019-10-22 09:02:27,522 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:27" (1/1) ... [2019-10-22 09:02:27,547 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:27" (1/1) ... [2019-10-22 09:02:27,569 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:27" (1/1) ... [2019-10-22 09:02:27,578 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:27" (1/1) ... [2019-10-22 09:02:27,583 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 09:02:27,584 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 09:02:27,584 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 09:02:27,584 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 09:02:27,585 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:27" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_181d7cc7-a3f2-4805-bac4-65787677dc34/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 09:02:27,663 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 09:02:27,664 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-22 09:02:27,664 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 09:02:27,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 09:02:28,615 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 09:02:28,615 INFO L284 CfgBuilder]: Removed 208 assume(true) statements. [2019-10-22 09:02:28,617 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:02:28 BoogieIcfgContainer [2019-10-22 09:02:28,617 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 09:02:28,617 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-10-22 09:02:28,618 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-10-22 09:02:28,622 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-10-22 09:02:28,623 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 09:02:28,623 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.10 09:02:26" (1/3) ... [2019-10-22 09:02:28,625 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1c73fa7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.10 09:02:28, skipping insertion in model container [2019-10-22 09:02:28,625 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 09:02:28,625 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:27" (2/3) ... [2019-10-22 09:02:28,625 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1c73fa7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.10 09:02:28, skipping insertion in model container [2019-10-22 09:02:28,626 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 09:02:28,626 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:02:28" (3/3) ... [2019-10-22 09:02:28,627 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product58.cil.c [2019-10-22 09:02:28,693 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-10-22 09:02:28,694 INFO L357 BuchiCegarLoop]: Hoare is false [2019-10-22 09:02:28,694 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-10-22 09:02:28,694 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 09:02:28,694 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 09:02:28,694 INFO L361 BuchiCegarLoop]: Difference is false [2019-10-22 09:02:28,694 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 09:02:28,694 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-10-22 09:02:28,721 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 141 states. [2019-10-22 09:02:28,763 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 91 [2019-10-22 09:02:28,765 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 09:02:28,766 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 09:02:28,775 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:02:28,775 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:02:28,775 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-10-22 09:02:28,776 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 141 states. [2019-10-22 09:02:28,782 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 91 [2019-10-22 09:02:28,782 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 09:02:28,783 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 09:02:28,783 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:02:28,784 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:02:28,790 INFO L791 eck$LassoCheckResult]: Stem: 83#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13);call #t~string3.base, #t~string3.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string3.base, #t~string3.offset, 1);call write~init~int(77, #t~string3.base, 1 + #t~string3.offset, 1);call write~init~int(101, #t~string3.base, 2 + #t~string3.offset, 1);call write~init~int(116, #t~string3.base, 3 + #t~string3.offset, 1);call write~init~int(104, #t~string3.base, 4 + #t~string3.offset, 1);call write~init~int(58, #t~string3.base, 5 + #t~string3.offset, 1);call write~init~int(0, #t~string3.base, 6 + #t~string3.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string5.base, #t~string5.offset, 1);call write~init~int(82, #t~string5.base, 1 + #t~string5.offset, 1);call write~init~int(73, #t~string5.base, 2 + #t~string5.offset, 1);call write~init~int(84, #t~string5.base, 3 + #t~string5.offset, 1);call write~init~int(0, #t~string5.base, 4 + #t~string5.offset, 1);call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string7.base, #t~string7.offset, 1);call write~init~int(75, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 2 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string9.base, #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 1 + #t~string9.offset, 1);~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0;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(21);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(21);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(30);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(9);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(25);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(30);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(9);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(25);~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(13);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string60.base, #t~string60.offset, 1);call write~init~int(110, #t~string60.base, 1 + #t~string60.offset, 1);call write~init~int(0, #t~string60.base, 2 + #t~string60.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string62.base, #t~string62.offset, 1);call write~init~int(102, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(102, #t~string62.base, 2 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 3 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string64.base, #t~string64.offset, 1);call write~init~int(80, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(117, #t~string64.base, 2 + #t~string64.offset, 1);call write~init~int(109, #t~string64.base, 3 + #t~string64.offset, 1);call write~init~int(112, #t~string64.base, 4 + #t~string64.offset, 1);call write~init~int(58, #t~string64.base, 5 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 6 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string66.base, #t~string66.offset, 1);call write~init~int(110, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 2 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string68.base, #t~string68.offset, 1);call write~init~int(102, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(102, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 3 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string70.base, #t~string70.offset, 1);call write~init~int(32, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 2 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string72.base, #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 1 + #t~string72.offset, 1); 8#L-1true havoc main_#res;havoc main_#t~ret48, main_~retValue_acc~7, main_~tmp~4;havoc main_~retValue_acc~7;havoc main_~tmp~4; 14#L998true havoc valid_product_#res;havoc valid_product_~retValue_acc~13;havoc valid_product_~retValue_acc~13;valid_product_~retValue_acc~13 := 1;valid_product_#res := valid_product_~retValue_acc~13; 17#L1006true main_#t~ret48 := valid_product_#res;main_~tmp~4 := main_#t~ret48;havoc main_#t~ret48; 135#L657true assume 0 != main_~tmp~4; 29#L629true ~switchedOnBeforeTS~0 := 0; 127#L159true havoc test_#t~nondet49, test_#t~nondet50, test_#t~nondet51, test_#t~nondet52, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 28#L180-1true [2019-10-22 09:02:28,790 INFO L793 eck$LassoCheckResult]: Loop: 28#L180-1true assume !false; 32#L692true assume test_~splverifierCounter~0 < 4; 122#L693true test_~tmp~5 := test_#t~nondet49;havoc test_#t~nondet49; 131#L701true assume !(0 != test_~tmp~5); 134#L701-1true test_~tmp___0~1 := test_#t~nondet50;havoc test_#t~nondet50; 35#L711true assume !(0 != test_~tmp___0~1); 36#L711-1true test_~tmp___2~0 := test_#t~nondet51;havoc test_#t~nondet51; 86#L721true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 96#L729-2true havoc __utac_acc__Specification5_spec__2_#t~ret10;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~9;havoc isPumpRunning_~retValue_acc~9;isPumpRunning_~retValue_acc~9 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~9; 71#L889true __utac_acc__Specification5_spec__2_#t~ret10 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret10;havoc __utac_acc__Specification5_spec__2_#t~ret10; 30#L169true assume !(0 != ~pumpRunning~0); 57#L760true assume !(0 != ~systemActive~0); 7#L767true havoc __utac_acc__Specification5_spec__3_#t~ret11, __utac_acc__Specification5_spec__3_#t~ret12, __utac_acc__Specification5_spec__3_~tmp~0, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~0;havoc __utac_acc__Specification5_spec__3_~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; 111#L123true __utac_acc__Specification5_spec__3_#t~ret11 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~0 := __utac_acc__Specification5_spec__3_#t~ret11;havoc __utac_acc__Specification5_spec__3_#t~ret11; 31#L180true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0); 28#L180-1true [2019-10-22 09:02:28,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:28,797 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2019-10-22 09:02:28,806 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:28,807 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774901066] [2019-10-22 09:02:28,807 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:28,807 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:28,807 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:29,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:02:29,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:02:29,661 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:02:29,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:29,666 INFO L82 PathProgramCache]: Analyzing trace with hash 1013869901, now seen corresponding path program 1 times [2019-10-22 09:02:29,666 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:29,666 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751400015] [2019-10-22 09:02:29,666 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:29,667 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:29,667 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:29,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:29,747 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 09:02:29,748 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [751400015] [2019-10-22 09:02:29,749 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:02:29,749 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 09:02:29,749 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795467119] [2019-10-22 09:02:29,755 INFO L808 eck$LassoCheckResult]: loop already infeasible [2019-10-22 09:02:29,757 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:02:29,773 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 09:02:29,774 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 09:02:29,776 INFO L87 Difference]: Start difference. First operand 141 states. Second operand 3 states. [2019-10-22 09:02:29,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:02:29,852 INFO L93 Difference]: Finished difference Result 141 states and 200 transitions. [2019-10-22 09:02:29,854 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 09:02:29,856 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 141 states and 200 transitions. [2019-10-22 09:02:29,865 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 89 [2019-10-22 09:02:29,871 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 141 states to 134 states and 192 transitions. [2019-10-22 09:02:29,873 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 134 [2019-10-22 09:02:29,874 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 134 [2019-10-22 09:02:29,874 INFO L73 IsDeterministic]: Start isDeterministic. Operand 134 states and 192 transitions. [2019-10-22 09:02:29,875 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-10-22 09:02:29,876 INFO L688 BuchiCegarLoop]: Abstraction has 134 states and 192 transitions. [2019-10-22 09:02:29,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states and 192 transitions. [2019-10-22 09:02:29,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 134. [2019-10-22 09:02:29,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2019-10-22 09:02:29,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 192 transitions. [2019-10-22 09:02:29,928 INFO L711 BuchiCegarLoop]: Abstraction has 134 states and 192 transitions. [2019-10-22 09:02:29,929 INFO L591 BuchiCegarLoop]: Abstraction has 134 states and 192 transitions. [2019-10-22 09:02:29,929 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-10-22 09:02:29,929 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 134 states and 192 transitions. [2019-10-22 09:02:29,931 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 89 [2019-10-22 09:02:29,931 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 09:02:29,931 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 09:02:29,932 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:02:29,932 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:02:29,932 INFO L791 eck$LassoCheckResult]: Stem: 398#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13);call #t~string3.base, #t~string3.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string3.base, #t~string3.offset, 1);call write~init~int(77, #t~string3.base, 1 + #t~string3.offset, 1);call write~init~int(101, #t~string3.base, 2 + #t~string3.offset, 1);call write~init~int(116, #t~string3.base, 3 + #t~string3.offset, 1);call write~init~int(104, #t~string3.base, 4 + #t~string3.offset, 1);call write~init~int(58, #t~string3.base, 5 + #t~string3.offset, 1);call write~init~int(0, #t~string3.base, 6 + #t~string3.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string5.base, #t~string5.offset, 1);call write~init~int(82, #t~string5.base, 1 + #t~string5.offset, 1);call write~init~int(73, #t~string5.base, 2 + #t~string5.offset, 1);call write~init~int(84, #t~string5.base, 3 + #t~string5.offset, 1);call write~init~int(0, #t~string5.base, 4 + #t~string5.offset, 1);call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string7.base, #t~string7.offset, 1);call write~init~int(75, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 2 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string9.base, #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 1 + #t~string9.offset, 1);~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0;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(21);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(21);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(30);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(9);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(25);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(30);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(9);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(25);~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(13);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string60.base, #t~string60.offset, 1);call write~init~int(110, #t~string60.base, 1 + #t~string60.offset, 1);call write~init~int(0, #t~string60.base, 2 + #t~string60.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string62.base, #t~string62.offset, 1);call write~init~int(102, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(102, #t~string62.base, 2 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 3 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string64.base, #t~string64.offset, 1);call write~init~int(80, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(117, #t~string64.base, 2 + #t~string64.offset, 1);call write~init~int(109, #t~string64.base, 3 + #t~string64.offset, 1);call write~init~int(112, #t~string64.base, 4 + #t~string64.offset, 1);call write~init~int(58, #t~string64.base, 5 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 6 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string66.base, #t~string66.offset, 1);call write~init~int(110, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 2 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string68.base, #t~string68.offset, 1);call write~init~int(102, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(102, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 3 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string70.base, #t~string70.offset, 1);call write~init~int(32, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 2 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string72.base, #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 1 + #t~string72.offset, 1); 302#L-1 havoc main_#res;havoc main_#t~ret48, main_~retValue_acc~7, main_~tmp~4;havoc main_~retValue_acc~7;havoc main_~tmp~4; 303#L998 havoc valid_product_#res;havoc valid_product_~retValue_acc~13;havoc valid_product_~retValue_acc~13;valid_product_~retValue_acc~13 := 1;valid_product_#res := valid_product_~retValue_acc~13; 312#L1006 main_#t~ret48 := valid_product_#res;main_~tmp~4 := main_#t~ret48;havoc main_#t~ret48; 317#L657 assume 0 != main_~tmp~4; 337#L629 ~switchedOnBeforeTS~0 := 0; 338#L159 havoc test_#t~nondet49, test_#t~nondet50, test_#t~nondet51, test_#t~nondet52, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 335#L180-1 [2019-10-22 09:02:29,932 INFO L793 eck$LassoCheckResult]: Loop: 335#L180-1 assume !false; 336#L692 assume test_~splverifierCounter~0 < 4; 342#L693 test_~tmp~5 := test_#t~nondet49;havoc test_#t~nondet49; 422#L701 assume !(0 != test_~tmp~5); 400#L701-1 test_~tmp___0~1 := test_#t~nondet50;havoc test_#t~nondet50; 346#L711 assume !(0 != test_~tmp___0~1); 348#L711-1 test_~tmp___2~0 := test_#t~nondet51;havoc test_#t~nondet51; 349#L721 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 402#L729-2 havoc __utac_acc__Specification5_spec__2_#t~ret10;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~9;havoc isPumpRunning_~retValue_acc~9;isPumpRunning_~retValue_acc~9 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~9; 391#L889 __utac_acc__Specification5_spec__2_#t~ret10 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret10;havoc __utac_acc__Specification5_spec__2_#t~ret10; 339#L169 assume !(0 != ~pumpRunning~0); 307#L760 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret54, processEnvironment_~tmp~7;havoc processEnvironment_~tmp~7; 360#L818 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret53, processEnvironment__wrappee__highWaterSensor_~tmp~6;havoc processEnvironment__wrappee__highWaterSensor_~tmp~6; 361#L792-1 assume !(0 == ~pumpRunning~0); 292#L767 havoc __utac_acc__Specification5_spec__3_#t~ret11, __utac_acc__Specification5_spec__3_#t~ret12, __utac_acc__Specification5_spec__3_~tmp~0, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~0;havoc __utac_acc__Specification5_spec__3_~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; 299#L123 __utac_acc__Specification5_spec__3_#t~ret11 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~0 := __utac_acc__Specification5_spec__3_#t~ret11;havoc __utac_acc__Specification5_spec__3_#t~ret11; 340#L180 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0); 335#L180-1 [2019-10-22 09:02:29,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:29,933 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2019-10-22 09:02:29,933 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:29,933 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203976663] [2019-10-22 09:02:29,933 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:29,933 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:29,933 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:30,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:02:30,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:02:30,437 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:02:30,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:30,443 INFO L82 PathProgramCache]: Analyzing trace with hash 385675286, now seen corresponding path program 1 times [2019-10-22 09:02:30,443 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:30,443 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822431330] [2019-10-22 09:02:30,443 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:30,444 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:30,444 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:30,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:30,460 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 09:02:30,461 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [822431330] [2019-10-22 09:02:30,461 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:02:30,461 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 09:02:30,461 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352985173] [2019-10-22 09:02:30,462 INFO L808 eck$LassoCheckResult]: loop already infeasible [2019-10-22 09:02:30,462 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:02:30,462 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 09:02:30,463 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 09:02:30,463 INFO L87 Difference]: Start difference. First operand 134 states and 192 transitions. cyclomatic complexity: 60 Second operand 3 states. [2019-10-22 09:02:30,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:02:30,617 INFO L93 Difference]: Finished difference Result 183 states and 251 transitions. [2019-10-22 09:02:30,617 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 09:02:30,618 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 183 states and 251 transitions. [2019-10-22 09:02:30,627 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 126 [2019-10-22 09:02:30,630 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 183 states to 183 states and 251 transitions. [2019-10-22 09:02:30,633 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 183 [2019-10-22 09:02:30,634 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 183 [2019-10-22 09:02:30,634 INFO L73 IsDeterministic]: Start isDeterministic. Operand 183 states and 251 transitions. [2019-10-22 09:02:30,635 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-10-22 09:02:30,635 INFO L688 BuchiCegarLoop]: Abstraction has 183 states and 251 transitions. [2019-10-22 09:02:30,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states and 251 transitions. [2019-10-22 09:02:30,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 183. [2019-10-22 09:02:30,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 183 states. [2019-10-22 09:02:30,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 251 transitions. [2019-10-22 09:02:30,652 INFO L711 BuchiCegarLoop]: Abstraction has 183 states and 251 transitions. [2019-10-22 09:02:30,652 INFO L591 BuchiCegarLoop]: Abstraction has 183 states and 251 transitions. [2019-10-22 09:02:30,652 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-10-22 09:02:30,652 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 183 states and 251 transitions. [2019-10-22 09:02:30,658 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 126 [2019-10-22 09:02:30,658 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 09:02:30,659 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 09:02:30,659 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:02:30,659 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] [2019-10-22 09:02:30,660 INFO L791 eck$LassoCheckResult]: Stem: 721#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13);call #t~string3.base, #t~string3.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string3.base, #t~string3.offset, 1);call write~init~int(77, #t~string3.base, 1 + #t~string3.offset, 1);call write~init~int(101, #t~string3.base, 2 + #t~string3.offset, 1);call write~init~int(116, #t~string3.base, 3 + #t~string3.offset, 1);call write~init~int(104, #t~string3.base, 4 + #t~string3.offset, 1);call write~init~int(58, #t~string3.base, 5 + #t~string3.offset, 1);call write~init~int(0, #t~string3.base, 6 + #t~string3.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string5.base, #t~string5.offset, 1);call write~init~int(82, #t~string5.base, 1 + #t~string5.offset, 1);call write~init~int(73, #t~string5.base, 2 + #t~string5.offset, 1);call write~init~int(84, #t~string5.base, 3 + #t~string5.offset, 1);call write~init~int(0, #t~string5.base, 4 + #t~string5.offset, 1);call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string7.base, #t~string7.offset, 1);call write~init~int(75, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 2 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string9.base, #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 1 + #t~string9.offset, 1);~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0;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(21);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(21);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(30);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(9);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(25);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(30);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(9);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(25);~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(13);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string60.base, #t~string60.offset, 1);call write~init~int(110, #t~string60.base, 1 + #t~string60.offset, 1);call write~init~int(0, #t~string60.base, 2 + #t~string60.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string62.base, #t~string62.offset, 1);call write~init~int(102, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(102, #t~string62.base, 2 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 3 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string64.base, #t~string64.offset, 1);call write~init~int(80, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(117, #t~string64.base, 2 + #t~string64.offset, 1);call write~init~int(109, #t~string64.base, 3 + #t~string64.offset, 1);call write~init~int(112, #t~string64.base, 4 + #t~string64.offset, 1);call write~init~int(58, #t~string64.base, 5 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 6 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string66.base, #t~string66.offset, 1);call write~init~int(110, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 2 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string68.base, #t~string68.offset, 1);call write~init~int(102, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(102, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 3 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string70.base, #t~string70.offset, 1);call write~init~int(32, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 2 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string72.base, #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 1 + #t~string72.offset, 1); 626#L-1 havoc main_#res;havoc main_#t~ret48, main_~retValue_acc~7, main_~tmp~4;havoc main_~retValue_acc~7;havoc main_~tmp~4; 627#L998 havoc valid_product_#res;havoc valid_product_~retValue_acc~13;havoc valid_product_~retValue_acc~13;valid_product_~retValue_acc~13 := 1;valid_product_#res := valid_product_~retValue_acc~13; 636#L1006 main_#t~ret48 := valid_product_#res;main_~tmp~4 := main_#t~ret48;havoc main_#t~ret48; 641#L657 assume 0 != main_~tmp~4; 659#L629 ~switchedOnBeforeTS~0 := 0; 660#L159 havoc test_#t~nondet49, test_#t~nondet50, test_#t~nondet51, test_#t~nondet52, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 657#L180-1 [2019-10-22 09:02:30,660 INFO L793 eck$LassoCheckResult]: Loop: 657#L180-1 assume !false; 658#L692 assume test_~splverifierCounter~0 < 4; 665#L693 test_~tmp~5 := test_#t~nondet49;havoc test_#t~nondet49; 751#L701 assume !(0 != test_~tmp~5); 723#L701-1 test_~tmp___0~1 := test_#t~nondet50;havoc test_#t~nondet50; 669#L711 assume !(0 != test_~tmp___0~1); 671#L711-1 test_~tmp___2~0 := test_#t~nondet51;havoc test_#t~nondet51; 672#L721 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 725#L729-2 havoc __utac_acc__Specification5_spec__2_#t~ret10;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~9;havoc isPumpRunning_~retValue_acc~9;isPumpRunning_~retValue_acc~9 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~9; 714#L889 __utac_acc__Specification5_spec__2_#t~ret10 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret10;havoc __utac_acc__Specification5_spec__2_#t~ret10; 661#L169 assume !(0 != ~pumpRunning~0); 662#L760 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret54, processEnvironment_~tmp~7;havoc processEnvironment_~tmp~7; 683#L818 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret53, processEnvironment__wrappee__highWaterSensor_~tmp~6;havoc processEnvironment__wrappee__highWaterSensor_~tmp~6; 684#L792-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret73, isHighWaterLevel_~retValue_acc~10, isHighWaterLevel_~tmp~9, isHighWaterLevel_~tmp___0~2;havoc isHighWaterLevel_~retValue_acc~10;havoc isHighWaterLevel_~tmp~9;havoc isHighWaterLevel_~tmp___0~2;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~2;havoc isHighWaterSensorDry_~retValue_acc~2; 634#L131-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~2; 635#L136-1 isHighWaterLevel_#t~ret73 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~9 := isHighWaterLevel_#t~ret73;havoc isHighWaterLevel_#t~ret73; 651#L938-3 assume 0 != isHighWaterLevel_~tmp~9;isHighWaterLevel_~tmp___0~2 := 0; 738#L938-5 isHighWaterLevel_~retValue_acc~10 := isHighWaterLevel_~tmp___0~2;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~10; 727#L944-1 processEnvironment__wrappee__highWaterSensor_#t~ret53 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~6 := processEnvironment__wrappee__highWaterSensor_#t~ret53;havoc processEnvironment__wrappee__highWaterSensor_#t~ret53; 691#L796-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~6); 615#L767 havoc __utac_acc__Specification5_spec__3_#t~ret11, __utac_acc__Specification5_spec__3_#t~ret12, __utac_acc__Specification5_spec__3_~tmp~0, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~0;havoc __utac_acc__Specification5_spec__3_~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; 623#L123 __utac_acc__Specification5_spec__3_#t~ret11 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~0 := __utac_acc__Specification5_spec__3_#t~ret11;havoc __utac_acc__Specification5_spec__3_#t~ret11; 663#L180 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0); 657#L180-1 [2019-10-22 09:02:30,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:30,660 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2019-10-22 09:02:30,661 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:30,661 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321138930] [2019-10-22 09:02:30,661 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:30,661 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:30,661 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:30,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:02:30,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:02:30,980 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:02:30,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:30,980 INFO L82 PathProgramCache]: Analyzing trace with hash 1093023170, now seen corresponding path program 1 times [2019-10-22 09:02:30,980 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:30,981 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402922029] [2019-10-22 09:02:30,981 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:30,981 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:30,981 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:30,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:31,013 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 09:02:31,014 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [402922029] [2019-10-22 09:02:31,014 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:02:31,014 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 09:02:31,014 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062860677] [2019-10-22 09:02:31,015 INFO L808 eck$LassoCheckResult]: loop already infeasible [2019-10-22 09:02:31,015 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:02:31,015 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 09:02:31,015 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 09:02:31,015 INFO L87 Difference]: Start difference. First operand 183 states and 251 transitions. cyclomatic complexity: 70 Second operand 5 states. [2019-10-22 09:02:31,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:02:31,252 INFO L93 Difference]: Finished difference Result 517 states and 697 transitions. [2019-10-22 09:02:31,252 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 09:02:31,252 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 517 states and 697 transitions. [2019-10-22 09:02:31,257 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 331 [2019-10-22 09:02:31,264 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 517 states to 517 states and 697 transitions. [2019-10-22 09:02:31,264 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 517 [2019-10-22 09:02:31,265 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 517 [2019-10-22 09:02:31,265 INFO L73 IsDeterministic]: Start isDeterministic. Operand 517 states and 697 transitions. [2019-10-22 09:02:31,270 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-10-22 09:02:31,271 INFO L688 BuchiCegarLoop]: Abstraction has 517 states and 697 transitions. [2019-10-22 09:02:31,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 517 states and 697 transitions. [2019-10-22 09:02:31,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 517 to 359. [2019-10-22 09:02:31,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 359 states. [2019-10-22 09:02:31,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 359 states and 481 transitions. [2019-10-22 09:02:31,303 INFO L711 BuchiCegarLoop]: Abstraction has 359 states and 481 transitions. [2019-10-22 09:02:31,303 INFO L591 BuchiCegarLoop]: Abstraction has 359 states and 481 transitions. [2019-10-22 09:02:31,303 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-10-22 09:02:31,303 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 359 states and 481 transitions. [2019-10-22 09:02:31,307 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 252 [2019-10-22 09:02:31,308 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 09:02:31,308 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 09:02:31,309 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:02:31,309 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, 1] [2019-10-22 09:02:31,309 INFO L791 eck$LassoCheckResult]: Stem: 1440#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13);call #t~string3.base, #t~string3.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string3.base, #t~string3.offset, 1);call write~init~int(77, #t~string3.base, 1 + #t~string3.offset, 1);call write~init~int(101, #t~string3.base, 2 + #t~string3.offset, 1);call write~init~int(116, #t~string3.base, 3 + #t~string3.offset, 1);call write~init~int(104, #t~string3.base, 4 + #t~string3.offset, 1);call write~init~int(58, #t~string3.base, 5 + #t~string3.offset, 1);call write~init~int(0, #t~string3.base, 6 + #t~string3.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string5.base, #t~string5.offset, 1);call write~init~int(82, #t~string5.base, 1 + #t~string5.offset, 1);call write~init~int(73, #t~string5.base, 2 + #t~string5.offset, 1);call write~init~int(84, #t~string5.base, 3 + #t~string5.offset, 1);call write~init~int(0, #t~string5.base, 4 + #t~string5.offset, 1);call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string7.base, #t~string7.offset, 1);call write~init~int(75, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 2 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string9.base, #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 1 + #t~string9.offset, 1);~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0;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(21);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(21);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(30);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(9);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(25);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(30);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(9);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(25);~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(13);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string60.base, #t~string60.offset, 1);call write~init~int(110, #t~string60.base, 1 + #t~string60.offset, 1);call write~init~int(0, #t~string60.base, 2 + #t~string60.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string62.base, #t~string62.offset, 1);call write~init~int(102, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(102, #t~string62.base, 2 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 3 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string64.base, #t~string64.offset, 1);call write~init~int(80, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(117, #t~string64.base, 2 + #t~string64.offset, 1);call write~init~int(109, #t~string64.base, 3 + #t~string64.offset, 1);call write~init~int(112, #t~string64.base, 4 + #t~string64.offset, 1);call write~init~int(58, #t~string64.base, 5 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 6 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string66.base, #t~string66.offset, 1);call write~init~int(110, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 2 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string68.base, #t~string68.offset, 1);call write~init~int(102, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(102, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 3 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string70.base, #t~string70.offset, 1);call write~init~int(32, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 2 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string72.base, #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 1 + #t~string72.offset, 1); 1342#L-1 havoc main_#res;havoc main_#t~ret48, main_~retValue_acc~7, main_~tmp~4;havoc main_~retValue_acc~7;havoc main_~tmp~4; 1343#L998 havoc valid_product_#res;havoc valid_product_~retValue_acc~13;havoc valid_product_~retValue_acc~13;valid_product_~retValue_acc~13 := 1;valid_product_#res := valid_product_~retValue_acc~13; 1352#L1006 main_#t~ret48 := valid_product_#res;main_~tmp~4 := main_#t~ret48;havoc main_#t~ret48; 1357#L657 assume 0 != main_~tmp~4; 1375#L629 ~switchedOnBeforeTS~0 := 0; 1376#L159 havoc test_#t~nondet49, test_#t~nondet50, test_#t~nondet51, test_#t~nondet52, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1373#L180-1 [2019-10-22 09:02:31,309 INFO L793 eck$LassoCheckResult]: Loop: 1373#L180-1 assume !false; 1374#L692 assume test_~splverifierCounter~0 < 4; 1381#L693 test_~tmp~5 := test_#t~nondet49;havoc test_#t~nondet49; 1470#L701 assume !(0 != test_~tmp~5); 1473#L701-1 test_~tmp___0~1 := test_#t~nondet50;havoc test_#t~nondet50; 1385#L711 assume !(0 != test_~tmp___0~1); 1387#L711-1 test_~tmp___2~0 := test_#t~nondet51;havoc test_#t~nondet51; 1388#L721 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 1442#L729-2 havoc __utac_acc__Specification5_spec__2_#t~ret10;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~9;havoc isPumpRunning_~retValue_acc~9;isPumpRunning_~retValue_acc~9 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~9; 1430#L889 __utac_acc__Specification5_spec__2_#t~ret10 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret10;havoc __utac_acc__Specification5_spec__2_#t~ret10; 1377#L169 assume !(0 != ~pumpRunning~0); 1378#L760 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret54, processEnvironment_~tmp~7;havoc processEnvironment_~tmp~7; 1399#L818 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret53, processEnvironment__wrappee__highWaterSensor_~tmp~6;havoc processEnvironment__wrappee__highWaterSensor_~tmp~6; 1400#L792-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret73, isHighWaterLevel_~retValue_acc~10, isHighWaterLevel_~tmp~9, isHighWaterLevel_~tmp___0~2;havoc isHighWaterLevel_~retValue_acc~10;havoc isHighWaterLevel_~tmp~9;havoc isHighWaterLevel_~tmp___0~2;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~2;havoc isHighWaterSensorDry_~retValue_acc~2; 1350#L131-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~2; 1351#L136-1 isHighWaterLevel_#t~ret73 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~9 := isHighWaterLevel_#t~ret73;havoc isHighWaterLevel_#t~ret73; 1365#L938-3 assume 0 != isHighWaterLevel_~tmp~9;isHighWaterLevel_~tmp___0~2 := 0; 1457#L938-5 isHighWaterLevel_~retValue_acc~10 := isHighWaterLevel_~tmp___0~2;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~10; 1446#L944-1 processEnvironment__wrappee__highWaterSensor_#t~ret53 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~6 := processEnvironment__wrappee__highWaterSensor_#t~ret53;havoc processEnvironment__wrappee__highWaterSensor_#t~ret53; 1407#L796-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~6); 1331#L767 havoc __utac_acc__Specification5_spec__3_#t~ret11, __utac_acc__Specification5_spec__3_#t~ret12, __utac_acc__Specification5_spec__3_~tmp~0, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~0;havoc __utac_acc__Specification5_spec__3_~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; 1339#L123 __utac_acc__Specification5_spec__3_#t~ret11 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~0 := __utac_acc__Specification5_spec__3_#t~ret11;havoc __utac_acc__Specification5_spec__3_#t~ret11; 1379#L180 assume 2 != __utac_acc__Specification5_spec__3_~tmp~0;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~9;havoc isPumpRunning_~retValue_acc~9;isPumpRunning_~retValue_acc~9 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~9; 1380#L889-1 __utac_acc__Specification5_spec__3_#t~ret12 := isPumpRunning_#res;__utac_acc__Specification5_spec__3_~tmp___0~0 := __utac_acc__Specification5_spec__3_#t~ret12;havoc __utac_acc__Specification5_spec__3_#t~ret12; 1434#L184 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~0); 1373#L180-1 [2019-10-22 09:02:31,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:31,309 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 4 times [2019-10-22 09:02:31,310 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:31,310 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138425536] [2019-10-22 09:02:31,310 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:31,310 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:31,310 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:31,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:02:31,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:02:31,645 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:02:31,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:31,645 INFO L82 PathProgramCache]: Analyzing trace with hash -1871732579, now seen corresponding path program 1 times [2019-10-22 09:02:31,645 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:31,646 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41602194] [2019-10-22 09:02:31,646 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:31,646 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:31,646 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:31,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:02:31,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:02:31,664 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:02:31,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:31,665 INFO L82 PathProgramCache]: Analyzing trace with hash -1935158761, now seen corresponding path program 1 times [2019-10-22 09:02:31,665 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:31,665 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987925500] [2019-10-22 09:02:31,665 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:31,665 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:31,666 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:31,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:02:31,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:02:31,997 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:02:32,186 WARN L191 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2019-10-22 09:02:56,329 WARN L191 SmtUtils]: Spent 24.05 s on a formula simplification. DAG size of input: 455 DAG size of output: 453 [2019-10-22 09:03:07,009 WARN L191 SmtUtils]: Spent 10.67 s on a formula simplification that was a NOOP. DAG size: 451 [2019-10-22 09:03:07,074 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.10 09:03:07 BoogieIcfgContainer [2019-10-22 09:03:07,074 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-10-22 09:03:07,075 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 09:03:07,075 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 09:03:07,075 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 09:03:07,075 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:02:28" (3/4) ... [2019-10-22 09:03:07,078 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-10-22 09:03:07,125 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_181d7cc7-a3f2-4805-bac4-65787677dc34/bin/uautomizer/witness.graphml [2019-10-22 09:03:07,125 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 09:03:07,126 INFO L168 Benchmark]: Toolchain (without parser) took 40402.14 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 228.1 MB). Free memory was 934.3 MB in the beginning and 962.3 MB in the end (delta: -28.0 MB). Peak memory consumption was 200.1 MB. Max. memory is 11.5 GB. [2019-10-22 09:03:07,126 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 958.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:03:07,127 INFO L168 Benchmark]: CACSL2BoogieTranslator took 691.47 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 934.3 MB in the beginning and 1.1 GB in the end (delta: -190.9 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. [2019-10-22 09:03:07,127 INFO L168 Benchmark]: Boogie Procedure Inliner took 81.95 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-10-22 09:03:07,127 INFO L168 Benchmark]: Boogie Preprocessor took 84.37 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-10-22 09:03:07,128 INFO L168 Benchmark]: RCFGBuilder took 1033.19 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: 65.4 MB). Peak memory consumption was 65.4 MB. Max. memory is 11.5 GB. [2019-10-22 09:03:07,128 INFO L168 Benchmark]: BuchiAutomizer took 38457.01 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 85.5 MB). Free memory was 1.0 GB in the beginning and 964.8 MB in the end (delta: 84.3 MB). Peak memory consumption was 283.9 MB. Max. memory is 11.5 GB. [2019-10-22 09:03:07,128 INFO L168 Benchmark]: Witness Printer took 50.27 ms. Allocated memory is still 1.3 GB. Free memory was 964.8 MB in the beginning and 962.3 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 11.5 GB. [2019-10-22 09:03:07,131 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 958.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 691.47 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 934.3 MB in the beginning and 1.1 GB in the end (delta: -190.9 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 81.95 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 84.37 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1033.19 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: 65.4 MB). Peak memory consumption was 65.4 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 38457.01 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 85.5 MB). Free memory was 1.0 GB in the beginning and 964.8 MB in the end (delta: 84.3 MB). Peak memory consumption was 283.9 MB. Max. memory is 11.5 GB. * Witness Printer took 50.27 ms. Allocated memory is still 1.3 GB. Free memory was 964.8 MB in the beginning and 962.3 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 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 359 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 38.3s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 37.5s. 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, 158 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 359 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 655 SDtfs, 971 SDslu, 714 SDs, 0 SdLazy, 137 SolverSat, 60 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time LassoAnalysisResults: nont1 unkn0 SFLI3 SFLT0 conc0 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: 691]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=5892} State at position 1 is {NULL=0, NULL=0, NULL=0, NULL=-24, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@696017ec=0, NULL=5892, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@44c96b08=0, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1f149978=0, NULL=-3, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@35acb3cb=0, NULL=0, retValue_acc=0, NULL=0, NULL=0, NULL=-11, NULL=-8, retValue_acc=1, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@51a017c8=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@126ad73c=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2f3f56c2=51, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1b4002ee=0, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2fc7eb54=0, tmp=0, NULL=-12, NULL=0, NULL=-20, NULL=0, NULL=-10, tmp___1=0, tmp=1, NULL=-13, cleanupTimeShifts=4, NULL=-22, switchedOnBeforeTS=0, NULL=-17, NULL=-18, NULL=-6, tmp=0, \result=0, NULL=0, systemActive=1, waterLevel=1, \result=1, NULL=0, NULL=-4, \result=0, NULL=-1, NULL=-5, NULL=0, tmp___0=0, \result=1, retValue_acc=1, head=0, pumpRunning=0, \result=0, tmp=1, NULL=0, NULL=-9, retValue_acc=1, NULL=0, NULL=0, NULL=0, NULL=0, NULL=-23, \result=1, NULL=0, retValue_acc=0, NULL=-14, tmp___2=51, tmp___0=0, splverifierCounter=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@caf9f64=0, NULL=0, NULL=0, NULL=0, tmp=1, NULL=-16, NULL=5891, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2514fd3f=0, head=0, NULL=-19, tmp=0, NULL=-15, NULL=0, NULL=-2, NULL=-21, retValue_acc=0, NULL=-7} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L48] int waterLevel = 1; [L49] int methaneLevelCritical = 0; [L153] int switchedOnBeforeTS ; [L371] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L568] int cleanupTimeShifts = 4; [L750] int pumpRunning = 0; [L751] int systemActive = 1; [L648] int retValue_acc ; [L649] int tmp ; [L1002] int retValue_acc ; [L1005] retValue_acc = 1 [L1006] return (retValue_acc); [L655] tmp = valid_product() [L657] COND TRUE \read(tmp) [L158] switchedOnBeforeTS = 0 [L682] int splverifierCounter ; [L683] int tmp ; [L684] int tmp___0 ; [L685] int tmp___1 ; [L686] int tmp___2 ; [L689] splverifierCounter = 0 Loop: [L691] COND TRUE 1 [L693] COND TRUE splverifierCounter < 4 [L699] tmp = __VERIFIER_nondet_int() [L701] COND FALSE !(\read(tmp)) [L709] tmp___0 = __VERIFIER_nondet_int() [L711] COND FALSE !(\read(tmp___0)) [L719] tmp___2 = __VERIFIER_nondet_int() [L721] COND TRUE \read(tmp___2) [L971] systemActive = 1 [L885] int retValue_acc ; [L888] retValue_acc = pumpRunning [L889] return (retValue_acc); [L167] switchedOnBeforeTS = isPumpRunning() [L760] COND FALSE !(\read(pumpRunning)) [L767] COND TRUE \read(systemActive) [L815] int tmp ; [L818] COND FALSE !(\read(pumpRunning)) [L789] int tmp ; [L792] COND TRUE ! pumpRunning [L930] int retValue_acc ; [L931] int tmp ; [L932] int tmp___0 ; [L128] int retValue_acc ; [L131] COND TRUE waterLevel < 2 [L132] retValue_acc = 1 [L133] return (retValue_acc); [L936] tmp = isHighWaterSensorDry() [L938] COND TRUE \read(tmp) [L939] tmp___0 = 0 [L943] retValue_acc = tmp___0 [L944] return (retValue_acc); [L794] tmp = isHighWaterLevel() [L796] COND FALSE !(\read(tmp)) [L173] int tmp ; [L174] int tmp___0 ; [L119] int retValue_acc ; [L122] retValue_acc = waterLevel [L123] return (retValue_acc); [L178] tmp = getWaterLevel() [L180] COND TRUE tmp != 2 [L885] int retValue_acc ; [L888] retValue_acc = pumpRunning [L889] return (retValue_acc); [L182] tmp___0 = isPumpRunning() [L184] COND FALSE !(\read(tmp___0)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...