./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product24.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_8e1681a5-cd5a-4ac5-a15e-1396826d2fe5/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_8e1681a5-cd5a-4ac5-a15e-1396826d2fe5/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_8e1681a5-cd5a-4ac5-a15e-1396826d2fe5/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_8e1681a5-cd5a-4ac5-a15e-1396826d2fe5/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product24.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_8e1681a5-cd5a-4ac5-a15e-1396826d2fe5/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_8e1681a5-cd5a-4ac5-a15e-1396826d2fe5/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 2802309dbd9334e3c65161de741c9f21c5d465d0 .......................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 08:57:22,698 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 08:57:22,700 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 08:57:22,710 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 08:57:22,710 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 08:57:22,711 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 08:57:22,713 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 08:57:22,714 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 08:57:22,716 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 08:57:22,717 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 08:57:22,717 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 08:57:22,718 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 08:57:22,719 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 08:57:22,720 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 08:57:22,720 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 08:57:22,721 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 08:57:22,722 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 08:57:22,723 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 08:57:22,724 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 08:57:22,726 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 08:57:22,727 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 08:57:22,728 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 08:57:22,729 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 08:57:22,730 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 08:57:22,731 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 08:57:22,732 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 08:57:22,732 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 08:57:22,732 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 08:57:22,733 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 08:57:22,734 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 08:57:22,734 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 08:57:22,735 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 08:57:22,735 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 08:57:22,736 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 08:57:22,737 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 08:57:22,737 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 08:57:22,737 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 08:57:22,738 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 08:57:22,738 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 08:57:22,739 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 08:57:22,739 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 08:57:22,740 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_8e1681a5-cd5a-4ac5-a15e-1396826d2fe5/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-10-22 08:57:22,753 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 08:57:22,754 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 08:57:22,755 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 08:57:22,755 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 08:57:22,755 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 08:57:22,755 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-10-22 08:57:22,755 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-10-22 08:57:22,756 INFO L138 SettingsManager]: * Use old map elimination=false [2019-10-22 08:57:22,756 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-10-22 08:57:22,756 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-10-22 08:57:22,756 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-10-22 08:57:22,756 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 08:57:22,757 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 08:57:22,757 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 08:57:22,757 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 08:57:22,757 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 08:57:22,757 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 08:57:22,758 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-10-22 08:57:22,758 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-10-22 08:57:22,758 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-10-22 08:57:22,759 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 08:57:22,759 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 08:57:22,759 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-10-22 08:57:22,759 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 08:57:22,759 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-10-22 08:57:22,760 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 08:57:22,760 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 08:57:22,760 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-10-22 08:57:22,760 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 08:57:22,760 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 08:57:22,760 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-10-22 08:57:22,761 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-10-22 08:57:22,762 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_8e1681a5-cd5a-4ac5-a15e-1396826d2fe5/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 -> 2802309dbd9334e3c65161de741c9f21c5d465d0 [2019-10-22 08:57:22,787 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 08:57:22,798 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 08:57:22,801 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 08:57:22,804 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 08:57:22,804 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 08:57:22,805 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_8e1681a5-cd5a-4ac5-a15e-1396826d2fe5/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec3_product24.cil.c [2019-10-22 08:57:22,865 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_8e1681a5-cd5a-4ac5-a15e-1396826d2fe5/bin/uautomizer/data/f30bc3fd9/dbaaac0ae62b4d8087f6e4269ea0b932/FLAG3174ed9a8 [2019-10-22 08:57:23,312 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 08:57:23,313 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_8e1681a5-cd5a-4ac5-a15e-1396826d2fe5/sv-benchmarks/c/product-lines/minepump_spec3_product24.cil.c [2019-10-22 08:57:23,326 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_8e1681a5-cd5a-4ac5-a15e-1396826d2fe5/bin/uautomizer/data/f30bc3fd9/dbaaac0ae62b4d8087f6e4269ea0b932/FLAG3174ed9a8 [2019-10-22 08:57:23,618 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_8e1681a5-cd5a-4ac5-a15e-1396826d2fe5/bin/uautomizer/data/f30bc3fd9/dbaaac0ae62b4d8087f6e4269ea0b932 [2019-10-22 08:57:23,621 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 08:57:23,622 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 08:57:23,623 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 08:57:23,623 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 08:57:23,626 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 08:57:23,627 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:57:23" (1/1) ... [2019-10-22 08:57:23,630 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16cc6a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:23, skipping insertion in model container [2019-10-22 08:57:23,630 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:57:23" (1/1) ... [2019-10-22 08:57:23,636 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 08:57:23,675 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 08:57:24,049 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:57:24,066 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 08:57:24,154 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:57:24,183 INFO L192 MainTranslator]: Completed translation [2019-10-22 08:57:24,184 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:24 WrapperNode [2019-10-22 08:57:24,184 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 08:57:24,185 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 08:57:24,185 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 08:57:24,185 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 08:57:24,193 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:24" (1/1) ... [2019-10-22 08:57:24,211 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:24" (1/1) ... [2019-10-22 08:57:24,252 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 08:57:24,252 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 08:57:24,252 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 08:57:24,252 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 08:57:24,262 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:24" (1/1) ... [2019-10-22 08:57:24,263 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:24" (1/1) ... [2019-10-22 08:57:24,267 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:24" (1/1) ... [2019-10-22 08:57:24,268 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:24" (1/1) ... [2019-10-22 08:57:24,290 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:24" (1/1) ... [2019-10-22 08:57:24,297 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:24" (1/1) ... [2019-10-22 08:57:24,308 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:24" (1/1) ... [2019-10-22 08:57:24,316 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 08:57:24,316 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 08:57:24,316 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 08:57:24,317 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 08:57:24,318 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:24" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8e1681a5-cd5a-4ac5-a15e-1396826d2fe5/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 08:57:24,389 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 08:57:24,390 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-22 08:57:24,390 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 08:57:24,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 08:57:25,229 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 08:57:25,230 INFO L284 CfgBuilder]: Removed 168 assume(true) statements. [2019-10-22 08:57:25,231 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:57:25 BoogieIcfgContainer [2019-10-22 08:57:25,231 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 08:57:25,232 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-10-22 08:57:25,232 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-10-22 08:57:25,236 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-10-22 08:57:25,237 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 08:57:25,237 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.10 08:57:23" (1/3) ... [2019-10-22 08:57:25,238 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2ce9c340 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.10 08:57:25, skipping insertion in model container [2019-10-22 08:57:25,239 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 08:57:25,239 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:24" (2/3) ... [2019-10-22 08:57:25,239 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2ce9c340 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.10 08:57:25, skipping insertion in model container [2019-10-22 08:57:25,239 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 08:57:25,239 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:57:25" (3/3) ... [2019-10-22 08:57:25,240 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product24.cil.c [2019-10-22 08:57:25,285 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-10-22 08:57:25,285 INFO L357 BuchiCegarLoop]: Hoare is false [2019-10-22 08:57:25,285 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-10-22 08:57:25,285 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 08:57:25,285 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 08:57:25,285 INFO L361 BuchiCegarLoop]: Difference is false [2019-10-22 08:57:25,286 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 08:57:25,286 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-10-22 08:57:25,303 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 110 states. [2019-10-22 08:57:25,329 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 71 [2019-10-22 08:57:25,330 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 08:57:25,330 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 08:57:25,339 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-10-22 08:57:25,339 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:57:25,339 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-10-22 08:57:25,339 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 110 states. [2019-10-22 08:57:25,345 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 71 [2019-10-22 08:57:25,345 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 08:57:25,345 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 08:57:25,346 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-10-22 08:57:25,346 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:57:25,352 INFO L791 eck$LassoCheckResult]: Stem: 78#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(13);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string6.base, #t~string6.offset, 1);call write~init~int(110, #t~string6.base, 1 + #t~string6.offset, 1);call write~init~int(0, #t~string6.base, 2 + #t~string6.offset, 1);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string8.base, #t~string8.offset, 1);call write~init~int(102, #t~string8.base, 1 + #t~string8.offset, 1);call write~init~int(102, #t~string8.base, 2 + #t~string8.offset, 1);call write~init~int(0, #t~string8.base, 3 + #t~string8.offset, 1);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(80, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(117, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(109, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(112, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string12.base, #t~string12.offset, 1);call write~init~int(110, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 2 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 3 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(32, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 2 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string18.base, #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 1 + #t~string18.offset, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(30);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(9);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(21);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(30);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(9);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(21);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(30);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(9);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(25);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(30);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(9);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(13);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string66.base, #t~string66.offset, 1);call write~init~int(77, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(101, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(116, #t~string66.base, 3 + #t~string66.offset, 1);call write~init~int(104, #t~string66.base, 4 + #t~string66.offset, 1);call write~init~int(58, #t~string66.base, 5 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 6 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string68.base, #t~string68.offset, 1);call write~init~int(82, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(73, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(84, #t~string68.base, 3 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 4 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string70.base, #t~string70.offset, 1);call write~init~int(75, #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(41, #t~string72.base, #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 1 + #t~string72.offset, 1); 11#L-1true havoc main_#res;havoc main_#t~ret27, main_~retValue_acc~3, main_~tmp~5;havoc main_~retValue_acc~3;havoc main_~tmp~5; 29#L945true 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; 33#L953true main_#t~ret27 := valid_product_#res;main_~tmp~5 := main_#t~ret27;havoc main_#t~ret27; 82#L454true assume 0 != main_~tmp~5; 18#L428true havoc test_#t~nondet20, test_#t~nondet21, test_#t~nondet22, test_#t~nondet23, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 46#L350-1true [2019-10-22 08:57:25,352 INFO L793 eck$LassoCheckResult]: Loop: 46#L350-1true assume !false; 25#L276true assume test_~splverifierCounter~0 < 4; 14#L277true test_~tmp~3 := test_#t~nondet20;havoc test_#t~nondet20; 7#L285true assume !(0 != test_~tmp~3); 5#L285-1true test_~tmp___0~1 := test_#t~nondet21;havoc test_#t~nondet21; 38#L295true assume !(0 != test_~tmp___0~1); 35#L295-1true test_~tmp___2~0 := test_#t~nondet22;havoc test_#t~nondet22; 98#L305true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 104#L313-1true assume !(0 != ~pumpRunning~0); 112#L68true assume !(0 != ~systemActive~0); 45#L75true havoc __utac_acc__Specification3_spec__1_#t~ret24, __utac_acc__Specification3_spec__1_#t~ret25, __utac_acc__Specification3_spec__1_#t~ret26, __utac_acc__Specification3_spec__1_~tmp~4, __utac_acc__Specification3_spec__1_~tmp___0~2, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~4;havoc __utac_acc__Specification3_spec__1_~tmp___0~2;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~7;havoc isMethaneLevelCritical_~retValue_acc~7;isMethaneLevelCritical_~retValue_acc~7 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~7; 6#L877-1true __utac_acc__Specification3_spec__1_#t~ret24 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~4 := __utac_acc__Specification3_spec__1_#t~ret24;havoc __utac_acc__Specification3_spec__1_#t~ret24; 69#L344true assume 0 != __utac_acc__Specification3_spec__1_~tmp~4; 46#L350-1true [2019-10-22 08:57:25,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:57:25,358 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2019-10-22 08:57:25,367 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:57:25,368 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732083135] [2019-10-22 08:57:25,368 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:25,368 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:25,368 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:57:25,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:57:26,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:57:26,235 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:57:26,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:57:26,236 INFO L82 PathProgramCache]: Analyzing trace with hash -1670755457, now seen corresponding path program 1 times [2019-10-22 08:57:26,237 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:57:26,237 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144486071] [2019-10-22 08:57:26,237 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:26,237 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:26,238 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:57:26,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:57:26,288 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 08:57:26,289 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2144486071] [2019-10-22 08:57:26,290 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:57:26,290 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 08:57:26,290 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581568017] [2019-10-22 08:57:26,296 INFO L808 eck$LassoCheckResult]: loop already infeasible [2019-10-22 08:57:26,297 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:57:26,314 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 08:57:26,315 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 08:57:26,317 INFO L87 Difference]: Start difference. First operand 110 states. Second operand 3 states. [2019-10-22 08:57:26,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:57:26,407 INFO L93 Difference]: Finished difference Result 214 states and 306 transitions. [2019-10-22 08:57:26,408 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 08:57:26,410 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 214 states and 306 transitions. [2019-10-22 08:57:26,418 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 138 [2019-10-22 08:57:26,430 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 214 states to 200 states and 291 transitions. [2019-10-22 08:57:26,431 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 200 [2019-10-22 08:57:26,432 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 200 [2019-10-22 08:57:26,433 INFO L73 IsDeterministic]: Start isDeterministic. Operand 200 states and 291 transitions. [2019-10-22 08:57:26,438 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-10-22 08:57:26,439 INFO L688 BuchiCegarLoop]: Abstraction has 200 states and 291 transitions. [2019-10-22 08:57:26,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states and 291 transitions. [2019-10-22 08:57:26,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 198. [2019-10-22 08:57:26,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 198 states. [2019-10-22 08:57:26,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 288 transitions. [2019-10-22 08:57:26,509 INFO L711 BuchiCegarLoop]: Abstraction has 198 states and 288 transitions. [2019-10-22 08:57:26,509 INFO L591 BuchiCegarLoop]: Abstraction has 198 states and 288 transitions. [2019-10-22 08:57:26,509 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-10-22 08:57:26,510 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 198 states and 288 transitions. [2019-10-22 08:57:26,513 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 136 [2019-10-22 08:57:26,513 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 08:57:26,513 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 08:57:26,522 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-10-22 08:57:26,523 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:57:26,523 INFO L791 eck$LassoCheckResult]: Stem: 429#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(13);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string6.base, #t~string6.offset, 1);call write~init~int(110, #t~string6.base, 1 + #t~string6.offset, 1);call write~init~int(0, #t~string6.base, 2 + #t~string6.offset, 1);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string8.base, #t~string8.offset, 1);call write~init~int(102, #t~string8.base, 1 + #t~string8.offset, 1);call write~init~int(102, #t~string8.base, 2 + #t~string8.offset, 1);call write~init~int(0, #t~string8.base, 3 + #t~string8.offset, 1);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(80, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(117, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(109, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(112, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string12.base, #t~string12.offset, 1);call write~init~int(110, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 2 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 3 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(32, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 2 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string18.base, #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 1 + #t~string18.offset, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(30);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(9);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(21);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(30);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(9);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(21);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(30);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(9);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(25);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(30);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(9);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(13);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string66.base, #t~string66.offset, 1);call write~init~int(77, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(101, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(116, #t~string66.base, 3 + #t~string66.offset, 1);call write~init~int(104, #t~string66.base, 4 + #t~string66.offset, 1);call write~init~int(58, #t~string66.base, 5 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 6 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string68.base, #t~string68.offset, 1);call write~init~int(82, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(73, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(84, #t~string68.base, 3 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 4 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string70.base, #t~string70.offset, 1);call write~init~int(75, #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(41, #t~string72.base, #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 1 + #t~string72.offset, 1); 349#L-1 havoc main_#res;havoc main_#t~ret27, main_~retValue_acc~3, main_~tmp~5;havoc main_~retValue_acc~3;havoc main_~tmp~5; 350#L945 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; 378#L953 main_#t~ret27 := valid_product_#res;main_~tmp~5 := main_#t~ret27;havoc main_#t~ret27; 385#L454 assume 0 != main_~tmp~5; 360#L428 havoc test_#t~nondet20, test_#t~nondet21, test_#t~nondet22, test_#t~nondet23, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 336#L350-1 [2019-10-22 08:57:26,523 INFO L793 eck$LassoCheckResult]: Loop: 336#L350-1 assume !false; 372#L276 assume test_~splverifierCounter~0 < 4; 353#L277 test_~tmp~3 := test_#t~nondet20;havoc test_#t~nondet20; 341#L285 assume !(0 != test_~tmp~3); 337#L285-1 test_~tmp___0~1 := test_#t~nondet21;havoc test_#t~nondet21; 338#L295 assume !(0 != test_~tmp___0~1); 453#L295-1 test_~tmp___2~0 := test_#t~nondet22;havoc test_#t~nondet22; 440#L305 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 441#L313-1 assume !(0 != ~pumpRunning~0); 401#L68 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret1, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 449#L126 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__lowWaterSensor_#t~ret0, processEnvironment__wrappee__lowWaterSensor_~tmp~0;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~0; 380#L100-1 assume !(0 != ~pumpRunning~0); 381#L75 havoc __utac_acc__Specification3_spec__1_#t~ret24, __utac_acc__Specification3_spec__1_#t~ret25, __utac_acc__Specification3_spec__1_#t~ret26, __utac_acc__Specification3_spec__1_~tmp~4, __utac_acc__Specification3_spec__1_~tmp___0~2, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~4;havoc __utac_acc__Specification3_spec__1_~tmp___0~2;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~7;havoc isMethaneLevelCritical_~retValue_acc~7;isMethaneLevelCritical_~retValue_acc~7 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~7; 339#L877-1 __utac_acc__Specification3_spec__1_#t~ret24 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~4 := __utac_acc__Specification3_spec__1_#t~ret24;havoc __utac_acc__Specification3_spec__1_#t~ret24; 340#L344 assume 0 != __utac_acc__Specification3_spec__1_~tmp~4; 336#L350-1 [2019-10-22 08:57:26,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:57:26,524 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2019-10-22 08:57:26,524 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:57:26,524 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [234296600] [2019-10-22 08:57:26,524 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:26,525 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:26,525 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:57:26,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:57:26,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:57:26,982 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:57:26,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:57:26,983 INFO L82 PathProgramCache]: Analyzing trace with hash -1427585839, now seen corresponding path program 1 times [2019-10-22 08:57:26,983 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:57:26,983 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956105313] [2019-10-22 08:57:26,983 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:26,984 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:26,984 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:57:26,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:57:26,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:57:26,998 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:57:26,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:57:26,999 INFO L82 PathProgramCache]: Analyzing trace with hash 1021999211, now seen corresponding path program 1 times [2019-10-22 08:57:26,999 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:57:26,999 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413901551] [2019-10-22 08:57:26,999 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:26,999 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:27,000 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:57:27,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:57:27,077 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 08:57:27,077 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1413901551] [2019-10-22 08:57:27,078 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:57:27,078 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 08:57:27,078 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771743880] [2019-10-22 08:57:27,241 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:57:27,242 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 08:57:27,242 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 08:57:27,242 INFO L87 Difference]: Start difference. First operand 198 states and 288 transitions. cyclomatic complexity: 93 Second operand 5 states. [2019-10-22 08:57:27,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:57:27,510 INFO L93 Difference]: Finished difference Result 686 states and 1012 transitions. [2019-10-22 08:57:27,511 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-22 08:57:27,512 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 686 states and 1012 transitions. [2019-10-22 08:57:27,524 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 494 [2019-10-22 08:57:27,533 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 686 states to 686 states and 1012 transitions. [2019-10-22 08:57:27,534 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 686 [2019-10-22 08:57:27,536 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 686 [2019-10-22 08:57:27,537 INFO L73 IsDeterministic]: Start isDeterministic. Operand 686 states and 1012 transitions. [2019-10-22 08:57:27,540 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-10-22 08:57:27,544 INFO L688 BuchiCegarLoop]: Abstraction has 686 states and 1012 transitions. [2019-10-22 08:57:27,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 686 states and 1012 transitions. [2019-10-22 08:57:27,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 686 to 390. [2019-10-22 08:57:27,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 390 states. [2019-10-22 08:57:27,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 562 transitions. [2019-10-22 08:57:27,580 INFO L711 BuchiCegarLoop]: Abstraction has 390 states and 562 transitions. [2019-10-22 08:57:27,580 INFO L591 BuchiCegarLoop]: Abstraction has 390 states and 562 transitions. [2019-10-22 08:57:27,580 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-10-22 08:57:27,580 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 390 states and 562 transitions. [2019-10-22 08:57:27,586 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 272 [2019-10-22 08:57:27,587 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 08:57:27,587 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 08:57:27,588 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-10-22 08:57:27,588 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 08:57:27,588 INFO L791 eck$LassoCheckResult]: Stem: 1349#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(13);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string6.base, #t~string6.offset, 1);call write~init~int(110, #t~string6.base, 1 + #t~string6.offset, 1);call write~init~int(0, #t~string6.base, 2 + #t~string6.offset, 1);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string8.base, #t~string8.offset, 1);call write~init~int(102, #t~string8.base, 1 + #t~string8.offset, 1);call write~init~int(102, #t~string8.base, 2 + #t~string8.offset, 1);call write~init~int(0, #t~string8.base, 3 + #t~string8.offset, 1);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(80, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(117, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(109, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(112, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string12.base, #t~string12.offset, 1);call write~init~int(110, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 2 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 3 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(32, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 2 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string18.base, #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 1 + #t~string18.offset, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(30);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(9);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(21);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(30);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(9);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(21);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(30);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(9);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(25);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(30);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(9);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(13);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string66.base, #t~string66.offset, 1);call write~init~int(77, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(101, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(116, #t~string66.base, 3 + #t~string66.offset, 1);call write~init~int(104, #t~string66.base, 4 + #t~string66.offset, 1);call write~init~int(58, #t~string66.base, 5 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 6 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string68.base, #t~string68.offset, 1);call write~init~int(82, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(73, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(84, #t~string68.base, 3 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 4 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string70.base, #t~string70.offset, 1);call write~init~int(75, #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(41, #t~string72.base, #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 1 + #t~string72.offset, 1); 1251#L-1 havoc main_#res;havoc main_#t~ret27, main_~retValue_acc~3, main_~tmp~5;havoc main_~retValue_acc~3;havoc main_~tmp~5; 1252#L945 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; 1285#L953 main_#t~ret27 := valid_product_#res;main_~tmp~5 := main_#t~ret27;havoc main_#t~ret27; 1293#L454 assume 0 != main_~tmp~5; 1262#L428 havoc test_#t~nondet20, test_#t~nondet21, test_#t~nondet22, test_#t~nondet23, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1263#L350-1 [2019-10-22 08:57:27,588 INFO L793 eck$LassoCheckResult]: Loop: 1263#L350-1 assume !false; 1506#L276 assume test_~splverifierCounter~0 < 4; 1255#L277 test_~tmp~3 := test_#t~nondet20;havoc test_#t~nondet20; 1243#L285 assume !(0 != test_~tmp~3); 1239#L285-1 test_~tmp___0~1 := test_#t~nondet21;havoc test_#t~nondet21; 1240#L295 assume !(0 != test_~tmp___0~1); 1294#L295-1 test_~tmp___2~0 := test_#t~nondet22;havoc test_#t~nondet22; 1295#L305 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 1362#L313-1 assume !(0 != ~pumpRunning~0); 1308#L68 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret1, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 1358#L126 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__lowWaterSensor_#t~ret0, processEnvironment__wrappee__lowWaterSensor_~tmp~0;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~0; 1359#L100-1 assume !(0 != ~pumpRunning~0); 1513#L75 havoc __utac_acc__Specification3_spec__1_#t~ret24, __utac_acc__Specification3_spec__1_#t~ret25, __utac_acc__Specification3_spec__1_#t~ret26, __utac_acc__Specification3_spec__1_~tmp~4, __utac_acc__Specification3_spec__1_~tmp___0~2, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~4;havoc __utac_acc__Specification3_spec__1_~tmp___0~2;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~7;havoc isMethaneLevelCritical_~retValue_acc~7;isMethaneLevelCritical_~retValue_acc~7 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~7; 1512#L877-1 __utac_acc__Specification3_spec__1_#t~ret24 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~4 := __utac_acc__Specification3_spec__1_#t~ret24;havoc __utac_acc__Specification3_spec__1_#t~ret24; 1511#L344 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~4);havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~8;havoc getWaterLevel_~retValue_acc~8;getWaterLevel_~retValue_acc~8 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~8; 1510#L909 __utac_acc__Specification3_spec__1_#t~ret25 := getWaterLevel_#res;__utac_acc__Specification3_spec__1_~tmp___0~2 := __utac_acc__Specification3_spec__1_#t~ret25;havoc __utac_acc__Specification3_spec__1_#t~ret25; 1507#L350 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~2); 1263#L350-1 [2019-10-22 08:57:27,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:57:27,589 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2019-10-22 08:57:27,589 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:57:27,589 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445696806] [2019-10-22 08:57:27,589 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:27,589 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:27,589 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:57:27,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:57:27,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:57:27,873 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:57:27,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:57:27,879 INFO L82 PathProgramCache]: Analyzing trace with hash -1815416189, now seen corresponding path program 1 times [2019-10-22 08:57:27,879 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:57:27,879 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911777160] [2019-10-22 08:57:27,879 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:27,879 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:27,880 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:57:27,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:57:27,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:57:27,891 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:57:27,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:57:27,897 INFO L82 PathProgramCache]: Analyzing trace with hash -1406261347, now seen corresponding path program 1 times [2019-10-22 08:57:27,897 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:57:27,897 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952928063] [2019-10-22 08:57:27,897 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:27,898 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:27,898 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:57:28,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:57:28,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:57:28,150 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:57:52,470 WARN L191 SmtUtils]: Spent 24.22 s on a formula simplification. DAG size of input: 451 DAG size of output: 449 [2019-10-22 08:58:04,885 WARN L191 SmtUtils]: Spent 12.41 s on a formula simplification that was a NOOP. DAG size: 449 [2019-10-22 08:58:04,957 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.10 08:58:04 BoogieIcfgContainer [2019-10-22 08:58:04,959 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-10-22 08:58:04,960 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 08:58:04,960 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 08:58:04,960 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 08:58:04,961 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:57:25" (3/4) ... [2019-10-22 08:58:04,964 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-10-22 08:58:05,014 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_8e1681a5-cd5a-4ac5-a15e-1396826d2fe5/bin/uautomizer/witness.graphml [2019-10-22 08:58:05,014 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 08:58:05,015 INFO L168 Benchmark]: Toolchain (without parser) took 41393.44 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 360.2 MB). Free memory was 944.5 MB in the beginning and 1.3 GB in the end (delta: -366.5 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:58:05,015 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:58:05,016 INFO L168 Benchmark]: CACSL2BoogieTranslator took 561.55 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.8 MB). Free memory was 944.5 MB in the beginning and 1.1 GB in the end (delta: -184.7 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. [2019-10-22 08:58:05,016 INFO L168 Benchmark]: Boogie Procedure Inliner took 67.24 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-10-22 08:58:05,017 INFO L168 Benchmark]: Boogie Preprocessor took 64.05 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. [2019-10-22 08:58:05,017 INFO L168 Benchmark]: RCFGBuilder took 914.87 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: 69.4 MB). Peak memory consumption was 69.4 MB. Max. memory is 11.5 GB. [2019-10-22 08:58:05,017 INFO L168 Benchmark]: BuchiAutomizer took 39727.85 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 213.4 MB). Free memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: -262.6 MB). Peak memory consumption was 405.2 MB. Max. memory is 11.5 GB. [2019-10-22 08:58:05,018 INFO L168 Benchmark]: Witness Printer took 54.17 ms. Allocated memory is still 1.4 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 4.6 MB). Peak memory consumption was 4.6 MB. Max. memory is 11.5 GB. [2019-10-22 08:58:05,020 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 561.55 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.8 MB). Free memory was 944.5 MB in the beginning and 1.1 GB in the end (delta: -184.7 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 67.24 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 64.05 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 914.87 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: 69.4 MB). Peak memory consumption was 69.4 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 39727.85 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 213.4 MB). Free memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: -262.6 MB). Peak memory consumption was 405.2 MB. Max. memory is 11.5 GB. * Witness Printer took 54.17 ms. Allocated memory is still 1.4 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 4.6 MB). Peak memory consumption was 4.6 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 5 locations. The remainder module has 390 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 39.6s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 39.0s. Construction of modules took 0.2s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 298 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 390 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 368 SDtfs, 719 SDslu, 781 SDs, 0 SdLazy, 89 SolverSat, 24 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 275]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=0} State at position 1 is {NULL=0, NULL=0, NULL=0, NULL=-18, NULL=-11, NULL=0, NULL=0, NULL=-2, retValue_acc=0, NULL=0, NULL=-24, tmp=0, NULL=-14, NULL=-3, methaneLevelCritical=0, NULL=-22, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2849fd04=0, retValue_acc=1, tmp=0, NULL=0, NULL=0, NULL=-12, tmp___1=0, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7da03fe6=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@f91df43=0, cleanupTimeShifts=4, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5f1b5b06=0, tmp=0, NULL=-9, NULL=-20, tmp___0=1, NULL=0, systemActive=1, waterLevel=1, \result=1, NULL=0, retValue_acc=0, NULL=-15, NULL=0, NULL=0, NULL=-17, NULL=0, NULL=-6, NULL=0, NULL=-4, NULL=0, NULL=0, NULL=0, NULL=0, NULL=-19, \result=1, NULL=-23, head=0, pumpRunning=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@ab01896=0, NULL=-8, NULL=-13, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3fe02074=0, NULL=-16, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@323da04c=0, NULL=0, tmp=1, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@973e217=52, NULL=-7, NULL=0, retValue_acc=1, tmp___2=52, tmp___0=0, splverifierCounter=0, NULL=0, \result=0, NULL=-1, NULL=-25, NULL=-5, tmp=0, tmp___1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@224459d0=0, head=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@56eea458=0, NULL=-21, NULL=0, NULL=-10} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L60] int pumpRunning = 0; [L61] int systemActive = 1; [L369] int cleanupTimeShifts = 4; [L637] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L834] int waterLevel = 1; [L835] int methaneLevelCritical = 0; [L445] int retValue_acc ; [L446] int tmp ; [L949] int retValue_acc ; [L952] retValue_acc = 1 [L953] return (retValue_acc); [L452] tmp = valid_product() [L454] COND TRUE \read(tmp) [L266] int splverifierCounter ; [L267] int tmp ; [L268] int tmp___0 ; [L269] int tmp___1 ; [L270] int tmp___2 ; [L273] splverifierCounter = 0 Loop: [L275] COND TRUE 1 [L277] COND TRUE splverifierCounter < 4 [L283] tmp = __VERIFIER_nondet_int() [L285] COND FALSE !(\read(tmp)) [L293] tmp___0 = __VERIFIER_nondet_int() [L295] COND FALSE !(\read(tmp___0)) [L303] tmp___2 = __VERIFIER_nondet_int() [L305] COND TRUE \read(tmp___2) [L257] systemActive = 1 [L68] COND FALSE !(\read(pumpRunning)) [L75] COND TRUE \read(systemActive) [L123] int tmp ; [L126] COND FALSE !(\read(pumpRunning)) [L97] int tmp ; [L100] COND FALSE !(\read(pumpRunning)) [L336] int tmp ; [L337] int tmp___0 ; [L338] int tmp___1 ; [L873] int retValue_acc ; [L876] retValue_acc = methaneLevelCritical [L877] return (retValue_acc); [L342] tmp = isMethaneLevelCritical() [L344] COND FALSE !(\read(tmp)) [L905] int retValue_acc ; [L908] retValue_acc = waterLevel [L909] return (retValue_acc); [L348] tmp___0 = getWaterLevel() [L350] COND FALSE !(tmp___0 == 2) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...