./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product23.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_1f95c6f1-6fed-4e53-b815-7c31eef0223c/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_1f95c6f1-6fed-4e53-b815-7c31eef0223c/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_1f95c6f1-6fed-4e53-b815-7c31eef0223c/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_1f95c6f1-6fed-4e53-b815-7c31eef0223c/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product23.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_1f95c6f1-6fed-4e53-b815-7c31eef0223c/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_1f95c6f1-6fed-4e53-b815-7c31eef0223c/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 eb835625053b28be1502d008fc964b9382c39b0e ................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 0.1.24-6b5699a [2019-11-25 08:55:10,723 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-25 08:55:10,725 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-25 08:55:10,735 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-25 08:55:10,735 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-25 08:55:10,736 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-25 08:55:10,738 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-25 08:55:10,740 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-25 08:55:10,741 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-25 08:55:10,742 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-25 08:55:10,743 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-25 08:55:10,744 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-25 08:55:10,745 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-25 08:55:10,746 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-25 08:55:10,747 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-25 08:55:10,748 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-25 08:55:10,748 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-25 08:55:10,749 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-25 08:55:10,751 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-25 08:55:10,753 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-25 08:55:10,754 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-25 08:55:10,755 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-25 08:55:10,757 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-25 08:55:10,757 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-25 08:55:10,760 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-25 08:55:10,760 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-25 08:55:10,762 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-25 08:55:10,762 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-25 08:55:10,763 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-25 08:55:10,763 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-25 08:55:10,764 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-25 08:55:10,764 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-25 08:55:10,765 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-25 08:55:10,765 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-25 08:55:10,766 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-25 08:55:10,767 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-25 08:55:10,767 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-25 08:55:10,767 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-25 08:55:10,767 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-25 08:55:10,768 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-25 08:55:10,769 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-25 08:55:10,769 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_1f95c6f1-6fed-4e53-b815-7c31eef0223c/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-25 08:55:10,784 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-25 08:55:10,784 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-25 08:55:10,785 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-25 08:55:10,785 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-25 08:55:10,786 INFO L138 SettingsManager]: * Use SBE=true [2019-11-25 08:55:10,786 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-25 08:55:10,786 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-25 08:55:10,786 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-25 08:55:10,786 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-25 08:55:10,787 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-25 08:55:10,787 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-25 08:55:10,787 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-25 08:55:10,787 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-25 08:55:10,787 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-25 08:55:10,787 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-25 08:55:10,788 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-25 08:55:10,788 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-25 08:55:10,788 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-25 08:55:10,788 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-25 08:55:10,788 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-25 08:55:10,789 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-25 08:55:10,789 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-25 08:55:10,789 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-25 08:55:10,789 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-25 08:55:10,789 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-25 08:55:10,790 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-25 08:55:10,790 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-25 08:55:10,790 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-25 08:55:10,790 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-25 08:55:10,790 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-25 08:55:10,790 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-25 08:55:10,791 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-25 08:55:10,791 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/run_dir_1f95c6f1-6fed-4e53-b815-7c31eef0223c/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 -> eb835625053b28be1502d008fc964b9382c39b0e [2019-11-25 08:55:10,928 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-25 08:55:10,937 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-25 08:55:10,941 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-25 08:55:10,942 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-25 08:55:10,942 INFO L275 PluginConnector]: CDTParser initialized [2019-11-25 08:55:10,943 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_1f95c6f1-6fed-4e53-b815-7c31eef0223c/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec3_product23.cil.c [2019-11-25 08:55:10,993 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1f95c6f1-6fed-4e53-b815-7c31eef0223c/bin/uautomizer/data/bbae6096d/05a9c9566596457e9aac4528e1a9a732/FLAGb47382f8f [2019-11-25 08:55:11,492 INFO L306 CDTParser]: Found 1 translation units. [2019-11-25 08:55:11,493 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_1f95c6f1-6fed-4e53-b815-7c31eef0223c/sv-benchmarks/c/product-lines/minepump_spec3_product23.cil.c [2019-11-25 08:55:11,514 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1f95c6f1-6fed-4e53-b815-7c31eef0223c/bin/uautomizer/data/bbae6096d/05a9c9566596457e9aac4528e1a9a732/FLAGb47382f8f [2019-11-25 08:55:12,012 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_1f95c6f1-6fed-4e53-b815-7c31eef0223c/bin/uautomizer/data/bbae6096d/05a9c9566596457e9aac4528e1a9a732 [2019-11-25 08:55:12,018 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-25 08:55:12,020 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-25 08:55:12,024 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-25 08:55:12,024 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-25 08:55:12,027 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-25 08:55:12,028 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:55:12" (1/1) ... [2019-11-25 08:55:12,030 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75eeefb1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:55:12, skipping insertion in model container [2019-11-25 08:55:12,030 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:55:12" (1/1) ... [2019-11-25 08:55:12,037 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-25 08:55:12,079 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-25 08:55:12,417 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:55:12,437 INFO L201 MainTranslator]: Completed pre-run [2019-11-25 08:55:12,526 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:55:12,563 INFO L205 MainTranslator]: Completed translation [2019-11-25 08:55:12,564 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:55:12 WrapperNode [2019-11-25 08:55:12,564 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-25 08:55:12,566 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-25 08:55:12,566 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-25 08:55:12,566 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-25 08:55:12,574 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:55:12" (1/1) ... [2019-11-25 08:55:12,591 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:55:12" (1/1) ... [2019-11-25 08:55:12,636 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-25 08:55:12,637 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-25 08:55:12,637 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-25 08:55:12,637 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-25 08:55:12,646 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:55:12" (1/1) ... [2019-11-25 08:55:12,650 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:55:12" (1/1) ... [2019-11-25 08:55:12,656 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:55:12" (1/1) ... [2019-11-25 08:55:12,670 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:55:12" (1/1) ... [2019-11-25 08:55:12,694 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:55:12" (1/1) ... [2019-11-25 08:55:12,701 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:55:12" (1/1) ... [2019-11-25 08:55:12,708 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:55:12" (1/1) ... [2019-11-25 08:55:12,713 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-25 08:55:12,718 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-25 08:55:12,719 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-25 08:55:12,719 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-25 08:55:12,720 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:55:12" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1f95c6f1-6fed-4e53-b815-7c31eef0223c/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 [2019-11-25 08:55:12,788 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-25 08:55:12,788 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-25 08:55:12,788 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-25 08:55:12,788 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-25 08:55:13,637 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-25 08:55:13,637 INFO L284 CfgBuilder]: Removed 166 assume(true) statements. [2019-11-25 08:55:13,638 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:55:13 BoogieIcfgContainer [2019-11-25 08:55:13,638 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-25 08:55:13,639 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-25 08:55:13,639 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-25 08:55:13,642 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-25 08:55:13,643 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-25 08:55:13,643 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 25.11 08:55:12" (1/3) ... [2019-11-25 08:55:13,644 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@56a2a0c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 25.11 08:55:13, skipping insertion in model container [2019-11-25 08:55:13,645 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-25 08:55:13,645 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:55:12" (2/3) ... [2019-11-25 08:55:13,645 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@56a2a0c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 25.11 08:55:13, skipping insertion in model container [2019-11-25 08:55:13,645 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-25 08:55:13,646 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:55:13" (3/3) ... [2019-11-25 08:55:13,647 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product23.cil.c [2019-11-25 08:55:13,709 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-25 08:55:13,709 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-25 08:55:13,710 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-25 08:55:13,710 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-25 08:55:13,714 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-25 08:55:13,714 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-25 08:55:13,714 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-25 08:55:13,714 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-25 08:55:13,737 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 110 states. [2019-11-25 08:55:13,769 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 71 [2019-11-25 08:55:13,770 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:55:13,770 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:55:13,776 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-25 08:55:13,776 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:55:13,776 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-25 08:55:13,776 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 110 states. [2019-11-25 08:55:13,782 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 71 [2019-11-25 08:55:13,782 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:55:13,782 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:55:13,783 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-25 08:55:13,783 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:55:13,787 INFO L794 eck$LassoCheckResult]: Stem: 92#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;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);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(13);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(110, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 2 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string21.base, #t~string21.offset, 1);call write~init~int(102, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(102, #t~string21.base, 2 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 3 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string23.base, #t~string23.offset, 1);call write~init~int(80, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(117, #t~string23.base, 2 + #t~string23.offset, 1);call write~init~int(109, #t~string23.base, 3 + #t~string23.offset, 1);call write~init~int(112, #t~string23.base, 4 + #t~string23.offset, 1);call write~init~int(58, #t~string23.base, 5 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 6 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string25.base, #t~string25.offset, 1);call write~init~int(110, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 2 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string27.base, #t~string27.offset, 1);call write~init~int(102, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(102, #t~string27.base, 2 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 3 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string29.base, #t~string29.offset, 1);call write~init~int(32, #t~string29.base, 1 + #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 2 + #t~string29.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string31.base, #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 1 + #t~string31.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(30);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(9);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(21);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(30);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(9);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(21);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(30);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(9);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(25);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(30);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(9);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 6#L-1true havoc main_#res;havoc main_#t~ret37, main_~retValue_acc~6, main_~tmp~5;havoc main_~retValue_acc~6;havoc main_~tmp~5; 43#L934true havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 48#L942true main_#t~ret37 := valid_product_#res;main_~tmp~5 := main_#t~ret37;havoc main_#t~ret37; 88#L523true assume 0 != main_~tmp~5; 16#L497true havoc test_#t~nondet33, test_#t~nondet34, test_#t~nondet35, test_#t~nondet36, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~2, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~2;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 18#L153-1true [2019-11-25 08:55:13,788 INFO L796 eck$LassoCheckResult]: Loop: 18#L153-1true assume !false; 98#L382true assume test_~splverifierCounter~0 < 4; 65#L383true test_~tmp~4 := test_#t~nondet33;havoc test_#t~nondet33; 69#L391true assume !(0 != test_~tmp~4); 71#L391-1true test_~tmp___0~2 := test_#t~nondet34;havoc test_#t~nondet34; 109#L401true assume !(0 != test_~tmp___0~2); 111#L401-1true test_~tmp___2~0 := test_#t~nondet35;havoc test_#t~nondet35; 44#L411true assume 0 != test_~tmp___2~0; 28#L417-1true assume !(0 != ~pumpRunning~0); 102#L184true assume !(0 != ~systemActive~0); 40#L191true havoc __utac_acc__Specification3_spec__1_#t~ret10, __utac_acc__Specification3_spec__1_#t~ret11, __utac_acc__Specification3_spec__1_#t~ret12, __utac_acc__Specification3_spec__1_~tmp~0, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~0;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~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 112#L90-1true __utac_acc__Specification3_spec__1_#t~ret10 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~0 := __utac_acc__Specification3_spec__1_#t~ret10;havoc __utac_acc__Specification3_spec__1_#t~ret10; 29#L147true assume 0 != __utac_acc__Specification3_spec__1_~tmp~0; 18#L153-1true [2019-11-25 08:55:13,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:55:13,794 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2019-11-25 08:55:13,801 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:55:13,801 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721888353] [2019-11-25 08:55:13,801 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:55:13,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:55:14,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:55:14,093 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:55:14,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:55:14,094 INFO L82 PathProgramCache]: Analyzing trace with hash -1671709762, now seen corresponding path program 1 times [2019-11-25 08:55:14,094 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:55:14,095 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648938454] [2019-11-25 08:55:14,095 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:55:14,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:55:14,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:55:14,128 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:55:14,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:55:14,132 INFO L82 PathProgramCache]: Analyzing trace with hash 42569176, now seen corresponding path program 1 times [2019-11-25 08:55:14,132 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:55:14,134 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988191471] [2019-11-25 08:55:14,134 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:55:14,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:55:14,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:55:14,299 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988191471] [2019-11-25 08:55:14,300 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:55:14,300 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-25 08:55:14,300 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031539796] [2019-11-25 08:55:14,387 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:55:14,401 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-25 08:55:14,401 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-11-25 08:55:14,403 INFO L87 Difference]: Start difference. First operand 110 states. Second operand 6 states. [2019-11-25 08:55:14,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:55:14,633 INFO L93 Difference]: Finished difference Result 270 states and 381 transitions. [2019-11-25 08:55:14,633 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-25 08:55:14,635 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 270 states and 381 transitions. [2019-11-25 08:55:14,647 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 173 [2019-11-25 08:55:14,659 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 270 states to 249 states and 360 transitions. [2019-11-25 08:55:14,660 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 249 [2019-11-25 08:55:14,665 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 249 [2019-11-25 08:55:14,666 INFO L73 IsDeterministic]: Start isDeterministic. Operand 249 states and 360 transitions. [2019-11-25 08:55:14,669 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-25 08:55:14,669 INFO L688 BuchiCegarLoop]: Abstraction has 249 states and 360 transitions. [2019-11-25 08:55:14,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states and 360 transitions. [2019-11-25 08:55:14,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 150. [2019-11-25 08:55:14,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2019-11-25 08:55:14,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 216 transitions. [2019-11-25 08:55:14,726 INFO L711 BuchiCegarLoop]: Abstraction has 150 states and 216 transitions. [2019-11-25 08:55:14,726 INFO L591 BuchiCegarLoop]: Abstraction has 150 states and 216 transitions. [2019-11-25 08:55:14,726 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-25 08:55:14,726 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 150 states and 216 transitions. [2019-11-25 08:55:14,736 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 104 [2019-11-25 08:55:14,736 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:55:14,736 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:55:14,737 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-25 08:55:14,737 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:55:14,737 INFO L794 eck$LassoCheckResult]: Stem: 497#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;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);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(13);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(110, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 2 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string21.base, #t~string21.offset, 1);call write~init~int(102, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(102, #t~string21.base, 2 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 3 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string23.base, #t~string23.offset, 1);call write~init~int(80, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(117, #t~string23.base, 2 + #t~string23.offset, 1);call write~init~int(109, #t~string23.base, 3 + #t~string23.offset, 1);call write~init~int(112, #t~string23.base, 4 + #t~string23.offset, 1);call write~init~int(58, #t~string23.base, 5 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 6 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string25.base, #t~string25.offset, 1);call write~init~int(110, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 2 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string27.base, #t~string27.offset, 1);call write~init~int(102, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(102, #t~string27.base, 2 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 3 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string29.base, #t~string29.offset, 1);call write~init~int(32, #t~string29.base, 1 + #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 2 + #t~string29.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string31.base, #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 1 + #t~string31.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(30);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(9);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(21);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(30);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(9);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(21);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(30);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(9);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(25);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(30);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(9);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 406#L-1 havoc main_#res;havoc main_#t~ret37, main_~retValue_acc~6, main_~tmp~5;havoc main_~retValue_acc~6;havoc main_~tmp~5; 407#L934 havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 458#L942 main_#t~ret37 := valid_product_#res;main_~tmp~5 := main_#t~ret37;havoc main_#t~ret37; 462#L523 assume 0 != main_~tmp~5; 422#L497 havoc test_#t~nondet33, test_#t~nondet34, test_#t~nondet35, test_#t~nondet36, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~2, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~2;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 423#L153-1 [2019-11-25 08:55:14,738 INFO L796 eck$LassoCheckResult]: Loop: 423#L153-1 assume !false; 426#L382 assume test_~splverifierCounter~0 < 4; 480#L383 test_~tmp~4 := test_#t~nondet33;havoc test_#t~nondet33; 481#L391 assume !(0 != test_~tmp~4); 417#L391-1 test_~tmp___0~2 := test_#t~nondet34;havoc test_#t~nondet34; 484#L401 assume !(0 != test_~tmp___0~2); 499#L401-1 test_~tmp___2~0 := test_#t~nondet35;havoc test_#t~nondet35; 459#L411 assume 0 != test_~tmp___2~0; 439#L417-1 assume !(0 != ~pumpRunning~0); 442#L184 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret14, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 493#L242 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__lowWaterSensor_#t~ret13, processEnvironment__wrappee__lowWaterSensor_~tmp~1;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~1; 450#L216-1 assume !(0 != ~pumpRunning~0); 451#L191 havoc __utac_acc__Specification3_spec__1_#t~ret10, __utac_acc__Specification3_spec__1_#t~ret11, __utac_acc__Specification3_spec__1_#t~ret12, __utac_acc__Specification3_spec__1_~tmp~0, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~0;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~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 455#L90-1 __utac_acc__Specification3_spec__1_#t~ret10 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~0 := __utac_acc__Specification3_spec__1_#t~ret10;havoc __utac_acc__Specification3_spec__1_#t~ret10; 443#L147 assume 0 != __utac_acc__Specification3_spec__1_~tmp~0; 423#L153-1 [2019-11-25 08:55:14,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:55:14,738 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2019-11-25 08:55:14,738 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:55:14,739 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033715365] [2019-11-25 08:55:14,739 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:55:14,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:55:14,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:55:14,852 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:55:14,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:55:14,852 INFO L82 PathProgramCache]: Analyzing trace with hash 1950294320, now seen corresponding path program 1 times [2019-11-25 08:55:14,853 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:55:14,853 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061070316] [2019-11-25 08:55:14,853 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:55:14,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:55:14,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:55:14,863 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:55:14,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:55:14,864 INFO L82 PathProgramCache]: Analyzing trace with hash 104912074, now seen corresponding path program 1 times [2019-11-25 08:55:14,864 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:55:14,865 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802939047] [2019-11-25 08:55:14,865 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:55:14,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:55:14,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:55:14,945 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802939047] [2019-11-25 08:55:14,945 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:55:14,945 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-25 08:55:14,946 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101370693] [2019-11-25 08:55:15,026 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:55:15,026 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-25 08:55:15,027 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-25 08:55:15,027 INFO L87 Difference]: Start difference. First operand 150 states and 216 transitions. cyclomatic complexity: 69 Second operand 5 states. [2019-11-25 08:55:15,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:55:15,254 INFO L93 Difference]: Finished difference Result 511 states and 749 transitions. [2019-11-25 08:55:15,255 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-25 08:55:15,256 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 511 states and 749 transitions. [2019-11-25 08:55:15,268 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 367 [2019-11-25 08:55:15,277 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 511 states to 511 states and 749 transitions. [2019-11-25 08:55:15,277 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 511 [2019-11-25 08:55:15,279 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 511 [2019-11-25 08:55:15,279 INFO L73 IsDeterministic]: Start isDeterministic. Operand 511 states and 749 transitions. [2019-11-25 08:55:15,284 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-25 08:55:15,285 INFO L688 BuchiCegarLoop]: Abstraction has 511 states and 749 transitions. [2019-11-25 08:55:15,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 511 states and 749 transitions. [2019-11-25 08:55:15,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 511 to 294. [2019-11-25 08:55:15,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 294 states. [2019-11-25 08:55:15,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 418 transitions. [2019-11-25 08:55:15,310 INFO L711 BuchiCegarLoop]: Abstraction has 294 states and 418 transitions. [2019-11-25 08:55:15,311 INFO L591 BuchiCegarLoop]: Abstraction has 294 states and 418 transitions. [2019-11-25 08:55:15,311 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-25 08:55:15,311 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 294 states and 418 transitions. [2019-11-25 08:55:15,314 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 208 [2019-11-25 08:55:15,314 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:55:15,314 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:55:15,316 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-25 08:55:15,316 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:55:15,317 INFO L794 eck$LassoCheckResult]: Stem: 1189#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;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);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(13);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(110, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 2 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string21.base, #t~string21.offset, 1);call write~init~int(102, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(102, #t~string21.base, 2 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 3 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string23.base, #t~string23.offset, 1);call write~init~int(80, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(117, #t~string23.base, 2 + #t~string23.offset, 1);call write~init~int(109, #t~string23.base, 3 + #t~string23.offset, 1);call write~init~int(112, #t~string23.base, 4 + #t~string23.offset, 1);call write~init~int(58, #t~string23.base, 5 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 6 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string25.base, #t~string25.offset, 1);call write~init~int(110, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 2 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string27.base, #t~string27.offset, 1);call write~init~int(102, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(102, #t~string27.base, 2 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 3 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string29.base, #t~string29.offset, 1);call write~init~int(32, #t~string29.base, 1 + #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 2 + #t~string29.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string31.base, #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 1 + #t~string31.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(30);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(9);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(21);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(30);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(9);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(21);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(30);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(9);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(25);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(30);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(9);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 1087#L-1 havoc main_#res;havoc main_#t~ret37, main_~retValue_acc~6, main_~tmp~5;havoc main_~retValue_acc~6;havoc main_~tmp~5; 1088#L934 havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 1142#L942 main_#t~ret37 := valid_product_#res;main_~tmp~5 := main_#t~ret37;havoc main_#t~ret37; 1147#L523 assume 0 != main_~tmp~5; 1102#L497 havoc test_#t~nondet33, test_#t~nondet34, test_#t~nondet35, test_#t~nondet36, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~2, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~2;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1103#L153-1 [2019-11-25 08:55:15,318 INFO L796 eck$LassoCheckResult]: Loop: 1103#L153-1 assume !false; 1106#L382 assume test_~splverifierCounter~0 < 4; 1197#L383 test_~tmp~4 := test_#t~nondet33;havoc test_#t~nondet33; 1359#L391 assume !(0 != test_~tmp~4); 1356#L391-1 test_~tmp___0~2 := test_#t~nondet34;havoc test_#t~nondet34; 1353#L401 assume !(0 != test_~tmp___0~2); 1350#L401-1 test_~tmp___2~0 := test_#t~nondet35;havoc test_#t~nondet35; 1348#L411 assume 0 != test_~tmp___2~0; 1345#L417-1 assume !(0 != ~pumpRunning~0); 1341#L184 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret14, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 1333#L242 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__lowWaterSensor_#t~ret13, processEnvironment__wrappee__lowWaterSensor_~tmp~1;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~1; 1133#L216-1 assume !(0 != ~pumpRunning~0); 1134#L191 havoc __utac_acc__Specification3_spec__1_#t~ret10, __utac_acc__Specification3_spec__1_#t~ret11, __utac_acc__Specification3_spec__1_#t~ret12, __utac_acc__Specification3_spec__1_~tmp~0, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~0;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~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 1139#L90-1 __utac_acc__Specification3_spec__1_#t~ret10 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~0 := __utac_acc__Specification3_spec__1_#t~ret10;havoc __utac_acc__Specification3_spec__1_#t~ret10; 1206#L147 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~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; 1136#L122 __utac_acc__Specification3_spec__1_#t~ret11 := getWaterLevel_#res;__utac_acc__Specification3_spec__1_~tmp___0~0 := __utac_acc__Specification3_spec__1_#t~ret11;havoc __utac_acc__Specification3_spec__1_#t~ret11; 1110#L153 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~0); 1103#L153-1 [2019-11-25 08:55:15,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:55:15,318 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2019-11-25 08:55:15,319 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:55:15,319 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774182691] [2019-11-25 08:55:15,320 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:55:15,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:55:15,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:55:15,433 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:55:15,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:55:15,434 INFO L82 PathProgramCache]: Analyzing trace with hash 1627108098, now seen corresponding path program 1 times [2019-11-25 08:55:15,435 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:55:15,435 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282608404] [2019-11-25 08:55:15,435 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:55:15,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:55:15,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:55:15,447 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:55:15,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:55:15,448 INFO L82 PathProgramCache]: Analyzing trace with hash 2036262940, now seen corresponding path program 1 times [2019-11-25 08:55:15,448 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:55:15,449 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031305085] [2019-11-25 08:55:15,449 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:55:15,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:55:15,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:55:15,565 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:55:40,880 WARN L192 SmtUtils]: Spent 25.20 s on a formula simplification. DAG size of input: 452 DAG size of output: 400 [2019-11-25 08:55:54,114 WARN L192 SmtUtils]: Spent 13.23 s on a formula simplification that was a NOOP. DAG size: 400 [2019-11-25 08:55:54,178 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 25.11 08:55:54 BoogieIcfgContainer [2019-11-25 08:55:54,178 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-25 08:55:54,179 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-25 08:55:54,179 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-25 08:55:54,180 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-25 08:55:54,180 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:55:13" (3/4) ... [2019-11-25 08:55:54,183 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-11-25 08:55:54,250 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_1f95c6f1-6fed-4e53-b815-7c31eef0223c/bin/uautomizer/witness.graphml [2019-11-25 08:55:54,250 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-25 08:55:54,252 INFO L168 Benchmark]: Toolchain (without parser) took 42231.93 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 196.1 MB). Free memory was 944.7 MB in the beginning and 1.0 GB in the end (delta: -95.7 MB). Peak memory consumption was 100.3 MB. Max. memory is 11.5 GB. [2019-11-25 08:55:54,252 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:55:54,253 INFO L168 Benchmark]: CACSL2BoogieTranslator took 541.68 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.4 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -181.8 MB). Peak memory consumption was 17.8 MB. Max. memory is 11.5 GB. [2019-11-25 08:55:54,254 INFO L168 Benchmark]: Boogie Procedure Inliner took 70.53 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. [2019-11-25 08:55:54,254 INFO L168 Benchmark]: Boogie Preprocessor took 81.43 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:55:54,255 INFO L168 Benchmark]: RCFGBuilder took 920.28 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: 65.6 MB). Peak memory consumption was 65.6 MB. Max. memory is 11.5 GB. [2019-11-25 08:55:54,261 INFO L168 Benchmark]: BuchiAutomizer took 40539.43 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 57.7 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -143.0 kB). Peak memory consumption was 236.4 MB. Max. memory is 11.5 GB. [2019-11-25 08:55:54,261 INFO L168 Benchmark]: Witness Printer took 71.39 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: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. [2019-11-25 08:55:54,264 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 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 541.68 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.4 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -181.8 MB). Peak memory consumption was 17.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 70.53 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 81.43 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 920.28 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: 65.6 MB). Peak memory consumption was 65.6 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 40539.43 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 57.7 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -143.0 kB). Peak memory consumption was 236.4 MB. Max. memory is 11.5 GB. * Witness Printer took 71.39 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: 9.8 MB). Peak memory consumption was 9.8 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 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 294 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 40.4s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 39.7s. Construction of modules took 0.2s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 316 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 294 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 365 SDtfs, 1154 SDslu, 1360 SDs, 0 SdLazy, 121 SolverSat, 30 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc2 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: 381]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=8451} State at position 1 is {NULL=0, retValue_acc=0, NULL=13297, NULL=8451, retValue_acc=0, NULL=13294, NULL=0, NULL=0, NULL=13299, methaneLevelCritical=0, tmp=0, retValue_acc=1, NULL=0, tmp=0, NULL=0, NULL=0, NULL=0, NULL=13307, NULL=0, tmp___1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7d56e8ee=0, NULL=13301, NULL=13302, tmp___0=1, tmp=0, cleanupTimeShifts=4, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@63318119=0, NULL=13291, NULL=13295, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6468d661=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4586ef31=60, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@16c03be1=0, NULL=13293, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@50e18db=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, systemActive=1, waterLevel=1, NULL=13300, \result=1, NULL=13312, NULL=13310, NULL=0, NULL=0, NULL=0, \result=1, retValue_acc=1, head=0, pumpRunning=0, NULL=13298, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3a4dd3d7=0, NULL=13308, NULL=0, NULL=13311, NULL=0, tmp=1, NULL=0, NULL=13305, NULL=13303, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6e4d184d=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2a91b544=0, NULL=13296, tmp___2=60, tmp___0=0, splverifierCounter=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, \result=0, NULL=13290, NULL=13314, NULL=13309, tmp=0, tmp___1=0, head=0, NULL=13304, NULL=13315, NULL=13292, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@149e310d=0, NULL=0, NULL=13306} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L47] int waterLevel = 1; [L48] int methaneLevelCritical = 0; [L177] int pumpRunning = 0; [L178] int systemActive = 1; [L438] int cleanupTimeShifts = 4; [L715] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L514] int retValue_acc ; [L515] int tmp ; [L938] int retValue_acc ; [L941] retValue_acc = 1 [L942] return (retValue_acc); [L521] tmp = valid_product() [L523] COND TRUE \read(tmp) [L372] int splverifierCounter ; [L373] int tmp ; [L374] int tmp___0 ; [L375] int tmp___1 ; [L376] int tmp___2 ; [L379] splverifierCounter = 0 Loop: [L381] COND TRUE 1 [L383] COND TRUE splverifierCounter < 4 [L389] tmp = __VERIFIER_nondet_int() [L391] COND FALSE !(\read(tmp)) [L399] tmp___0 = __VERIFIER_nondet_int() [L401] COND FALSE !(\read(tmp___0)) [L409] tmp___2 = __VERIFIER_nondet_int() [L411] COND TRUE \read(tmp___2) [L184] COND FALSE !(\read(pumpRunning)) [L191] COND TRUE \read(systemActive) [L239] int tmp ; [L242] COND FALSE !(\read(pumpRunning)) [L213] int tmp ; [L216] COND FALSE !(\read(pumpRunning)) [L139] int tmp ; [L140] int tmp___0 ; [L141] int tmp___1 ; [L86] int retValue_acc ; [L89] retValue_acc = methaneLevelCritical [L90] return (retValue_acc); [L145] tmp = isMethaneLevelCritical() [L147] COND FALSE !(\read(tmp)) [L118] int retValue_acc ; [L121] retValue_acc = waterLevel [L122] return (retValue_acc); [L151] tmp___0 = getWaterLevel() [L153] COND FALSE !(tmp___0 == 2) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...