./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product49.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_afd8c284-f42e-4dc9-b3e0-235ea5ffbe32/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_afd8c284-f42e-4dc9-b3e0-235ea5ffbe32/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_afd8c284-f42e-4dc9-b3e0-235ea5ffbe32/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_afd8c284-f42e-4dc9-b3e0-235ea5ffbe32/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product49.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_afd8c284-f42e-4dc9-b3e0-235ea5ffbe32/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_afd8c284-f42e-4dc9-b3e0-235ea5ffbe32/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 81d3a03e2badb1d355e733e1f917b69305964186 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 0.1.25-f470102 [2019-12-07 15:46:53,592 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 15:46:53,593 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 15:46:53,602 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 15:46:53,602 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 15:46:53,603 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 15:46:53,605 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 15:46:53,606 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 15:46:53,608 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 15:46:53,609 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 15:46:53,609 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 15:46:53,610 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 15:46:53,610 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 15:46:53,611 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 15:46:53,612 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 15:46:53,613 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 15:46:53,613 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 15:46:53,614 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 15:46:53,616 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 15:46:53,617 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 15:46:53,619 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 15:46:53,620 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 15:46:53,620 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 15:46:53,621 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 15:46:53,623 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 15:46:53,623 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 15:46:53,623 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 15:46:53,624 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 15:46:53,624 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 15:46:53,624 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 15:46:53,625 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 15:46:53,625 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 15:46:53,626 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 15:46:53,626 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 15:46:53,627 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 15:46:53,627 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 15:46:53,628 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 15:46:53,628 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 15:46:53,628 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 15:46:53,629 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 15:46:53,630 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 15:46:53,630 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_afd8c284-f42e-4dc9-b3e0-235ea5ffbe32/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-12-07 15:46:53,645 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 15:46:53,645 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 15:46:53,646 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 15:46:53,646 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 15:46:53,646 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 15:46:53,646 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-12-07 15:46:53,647 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-12-07 15:46:53,647 INFO L138 SettingsManager]: * Use old map elimination=false [2019-12-07 15:46:53,647 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-12-07 15:46:53,647 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-12-07 15:46:53,647 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-12-07 15:46:53,647 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 15:46:53,648 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 15:46:53,648 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 15:46:53,648 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 15:46:53,648 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 15:46:53,648 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 15:46:53,649 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-12-07 15:46:53,649 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-12-07 15:46:53,649 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-12-07 15:46:53,649 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 15:46:53,649 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 15:46:53,649 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-12-07 15:46:53,650 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 15:46:53,650 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-12-07 15:46:53,650 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 15:46:53,650 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 15:46:53,650 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-12-07 15:46:53,650 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 15:46:53,651 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 15:46:53,651 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 15:46:53,651 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-12-07 15:46:53,652 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-12-07 15:46:53,652 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_afd8c284-f42e-4dc9-b3e0-235ea5ffbe32/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 -> 81d3a03e2badb1d355e733e1f917b69305964186 [2019-12-07 15:46:53,758 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 15:46:53,766 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 15:46:53,769 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 15:46:53,771 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 15:46:53,771 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 15:46:53,772 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_afd8c284-f42e-4dc9-b3e0-235ea5ffbe32/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec3_product49.cil.c [2019-12-07 15:46:53,818 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_afd8c284-f42e-4dc9-b3e0-235ea5ffbe32/bin/uautomizer/data/d502bea76/9452e67e079e44b7a4260da5c086adb0/FLAGc9832f31b [2019-12-07 15:46:54,259 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 15:46:54,260 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_afd8c284-f42e-4dc9-b3e0-235ea5ffbe32/sv-benchmarks/c/product-lines/minepump_spec3_product49.cil.c [2019-12-07 15:46:54,269 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_afd8c284-f42e-4dc9-b3e0-235ea5ffbe32/bin/uautomizer/data/d502bea76/9452e67e079e44b7a4260da5c086adb0/FLAGc9832f31b [2019-12-07 15:46:54,278 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_afd8c284-f42e-4dc9-b3e0-235ea5ffbe32/bin/uautomizer/data/d502bea76/9452e67e079e44b7a4260da5c086adb0 [2019-12-07 15:46:54,280 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 15:46:54,281 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 15:46:54,282 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 15:46:54,282 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 15:46:54,284 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 15:46:54,284 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 03:46:54" (1/1) ... [2019-12-07 15:46:54,286 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c2b2671 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:46:54, skipping insertion in model container [2019-12-07 15:46:54,286 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 03:46:54" (1/1) ... [2019-12-07 15:46:54,291 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 15:46:54,320 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 15:46:54,525 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 15:46:54,533 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 15:46:54,580 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 15:46:54,600 INFO L208 MainTranslator]: Completed translation [2019-12-07 15:46:54,600 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:46:54 WrapperNode [2019-12-07 15:46:54,600 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 15:46:54,601 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 15:46:54,601 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 15:46:54,601 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 15:46:54,606 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:46:54" (1/1) ... [2019-12-07 15:46:54,619 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:46:54" (1/1) ... [2019-12-07 15:46:54,647 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 15:46:54,647 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 15:46:54,648 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 15:46:54,648 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 15:46:54,654 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:46:54" (1/1) ... [2019-12-07 15:46:54,654 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:46:54" (1/1) ... [2019-12-07 15:46:54,658 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:46:54" (1/1) ... [2019-12-07 15:46:54,658 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:46:54" (1/1) ... [2019-12-07 15:46:54,667 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:46:54" (1/1) ... [2019-12-07 15:46:54,672 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:46:54" (1/1) ... [2019-12-07 15:46:54,674 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:46:54" (1/1) ... [2019-12-07 15:46:54,678 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 15:46:54,678 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 15:46:54,678 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 15:46:54,678 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 15:46:54,679 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:46:54" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_afd8c284-f42e-4dc9-b3e0-235ea5ffbe32/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 [2019-12-07 15:46:54,720 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 15:46:54,720 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-12-07 15:46:54,720 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 15:46:54,720 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 15:46:55,155 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 15:46:55,155 INFO L287 CfgBuilder]: Removed 162 assume(true) statements. [2019-12-07 15:46:55,156 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 03:46:55 BoogieIcfgContainer [2019-12-07 15:46:55,156 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 15:46:55,156 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-12-07 15:46:55,156 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-12-07 15:46:55,158 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-12-07 15:46:55,159 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 15:46:55,159 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 07.12 03:46:54" (1/3) ... [2019-12-07 15:46:55,160 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1dd0648e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 03:46:55, skipping insertion in model container [2019-12-07 15:46:55,160 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 15:46:55,160 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:46:54" (2/3) ... [2019-12-07 15:46:55,160 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1dd0648e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 03:46:55, skipping insertion in model container [2019-12-07 15:46:55,160 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 15:46:55,160 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 03:46:55" (3/3) ... [2019-12-07 15:46:55,161 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product49.cil.c [2019-12-07 15:46:55,190 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-12-07 15:46:55,190 INFO L357 BuchiCegarLoop]: Hoare is false [2019-12-07 15:46:55,191 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-12-07 15:46:55,191 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 15:46:55,191 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 15:46:55,191 INFO L361 BuchiCegarLoop]: Difference is false [2019-12-07 15:46:55,191 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 15:46:55,191 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-12-07 15:46:55,203 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 120 states. [2019-12-07 15:46:55,222 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 77 [2019-12-07 15:46:55,222 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 15:46:55,222 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 15:46:55,228 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-12-07 15:46:55,228 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 15:46:55,228 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-12-07 15:46:55,228 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 120 states. [2019-12-07 15:46:55,233 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 77 [2019-12-07 15:46:55,233 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 15:46:55,233 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 15:46:55,234 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-12-07 15:46:55,234 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 15:46:55,237 INFO L794 eck$LassoCheckResult]: Stem: 104#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;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);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(13);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string31.base, #t~string31.offset, 1);call write~init~int(77, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(101, #t~string31.base, 2 + #t~string31.offset, 1);call write~init~int(116, #t~string31.base, 3 + #t~string31.offset, 1);call write~init~int(104, #t~string31.base, 4 + #t~string31.offset, 1);call write~init~int(58, #t~string31.base, 5 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 6 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string33.base, #t~string33.offset, 1);call write~init~int(82, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(73, #t~string33.base, 2 + #t~string33.offset, 1);call write~init~int(84, #t~string33.base, 3 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 4 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string35.base, #t~string35.offset, 1);call write~init~int(75, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 2 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string37.base, #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 1 + #t~string37.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(30);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(9);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(21);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(30);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(9);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(21);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(30);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(9);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(25);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(30);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(9);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 4#L-1true havoc main_#res;havoc main_#t~ret74, main_~retValue_acc~13, main_~tmp~9;havoc main_~retValue_acc~13;havoc main_~tmp~9; 43#L480true havoc valid_product_#res;havoc valid_product_~retValue_acc~9;havoc valid_product_~retValue_acc~9;valid_product_~retValue_acc~9 := 1;valid_product_#res := valid_product_~retValue_acc~9; 49#L488true main_#t~ret74 := valid_product_#res;main_~tmp~9 := main_#t~ret74;havoc main_#t~ret74; 108#L941true assume 0 != main_~tmp~9; 21#L918true havoc test_#t~nondet21, test_#t~nondet22, test_#t~nondet23, test_#t~nondet24, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 98#L333-1true [2019-12-07 15:46:55,238 INFO L796 eck$LassoCheckResult]: Loop: 98#L333-1true assume !false; 57#L262true assume test_~splverifierCounter~0 < 4; 3#L263true test_~tmp~4 := test_#t~nondet21;havoc test_#t~nondet21; 14#L271true assume !(0 != test_~tmp~4); 36#L271-1true test_~tmp___0~2 := test_#t~nondet22;havoc test_#t~nondet22; 95#L281true assume !(0 != test_~tmp___0~2); 91#L281-1true test_~tmp___2~0 := test_#t~nondet23;havoc test_#t~nondet23; 121#L291true assume 0 != test_~tmp___2~0; 99#L297-2true assume !(0 != ~pumpRunning~0); 72#L58true assume !(0 != ~systemActive~0); 11#L65true havoc __utac_acc__Specification3_spec__1_#t~ret25, __utac_acc__Specification3_spec__1_#t~ret26, __utac_acc__Specification3_spec__1_#t~ret27, __utac_acc__Specification3_spec__1_~tmp~5, __utac_acc__Specification3_spec__1_~tmp___0~3, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~5;havoc __utac_acc__Specification3_spec__1_~tmp___0~3;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~4;havoc isMethaneLevelCritical_~retValue_acc~4;isMethaneLevelCritical_~retValue_acc~4 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~4; 24#L395true __utac_acc__Specification3_spec__1_#t~ret25 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~5 := __utac_acc__Specification3_spec__1_#t~ret25;havoc __utac_acc__Specification3_spec__1_#t~ret25; 114#L327true assume 0 != __utac_acc__Specification3_spec__1_~tmp~5; 98#L333-1true [2019-12-07 15:46:55,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:46:55,242 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2019-12-07 15:46:55,248 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:46:55,248 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21308542] [2019-12-07 15:46:55,248 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:46:55,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:46:55,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:46:55,447 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 15:46:55,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:46:55,448 INFO L82 PathProgramCache]: Analyzing trace with hash -1679775179, now seen corresponding path program 1 times [2019-12-07 15:46:55,448 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:46:55,448 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1331812629] [2019-12-07 15:46:55,448 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:46:55,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:46:55,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:46:55,461 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 15:46:55,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:46:55,463 INFO L82 PathProgramCache]: Analyzing trace with hash 34503759, now seen corresponding path program 1 times [2019-12-07 15:46:55,463 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:46:55,463 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921466877] [2019-12-07 15:46:55,463 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:46:55,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:46:55,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 15:46:55,556 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921466877] [2019-12-07 15:46:55,557 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 15:46:55,557 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-07 15:46:55,557 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617801349] [2019-12-07 15:46:55,607 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 15:46:55,618 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 15:46:55,618 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-12-07 15:46:55,619 INFO L87 Difference]: Start difference. First operand 120 states. Second operand 6 states. [2019-12-07 15:46:55,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 15:46:55,725 INFO L93 Difference]: Finished difference Result 120 states and 172 transitions. [2019-12-07 15:46:55,726 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 15:46:55,727 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 120 states and 172 transitions. [2019-12-07 15:46:55,731 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 75 [2019-12-07 15:46:55,736 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 120 states to 113 states and 165 transitions. [2019-12-07 15:46:55,737 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 113 [2019-12-07 15:46:55,738 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 113 [2019-12-07 15:46:55,738 INFO L73 IsDeterministic]: Start isDeterministic. Operand 113 states and 165 transitions. [2019-12-07 15:46:55,739 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 15:46:55,740 INFO L688 BuchiCegarLoop]: Abstraction has 113 states and 165 transitions. [2019-12-07 15:46:55,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states and 165 transitions. [2019-12-07 15:46:55,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2019-12-07 15:46:55,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2019-12-07 15:46:55,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 165 transitions. [2019-12-07 15:46:55,766 INFO L711 BuchiCegarLoop]: Abstraction has 113 states and 165 transitions. [2019-12-07 15:46:55,766 INFO L591 BuchiCegarLoop]: Abstraction has 113 states and 165 transitions. [2019-12-07 15:46:55,766 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-12-07 15:46:55,766 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 113 states and 165 transitions. [2019-12-07 15:46:55,768 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 75 [2019-12-07 15:46:55,768 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 15:46:55,768 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 15:46:55,769 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-12-07 15:46:55,769 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 15:46:55,769 INFO L794 eck$LassoCheckResult]: Stem: 370#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;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);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(13);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string31.base, #t~string31.offset, 1);call write~init~int(77, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(101, #t~string31.base, 2 + #t~string31.offset, 1);call write~init~int(116, #t~string31.base, 3 + #t~string31.offset, 1);call write~init~int(104, #t~string31.base, 4 + #t~string31.offset, 1);call write~init~int(58, #t~string31.base, 5 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 6 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string33.base, #t~string33.offset, 1);call write~init~int(82, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(73, #t~string33.base, 2 + #t~string33.offset, 1);call write~init~int(84, #t~string33.base, 3 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 4 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string35.base, #t~string35.offset, 1);call write~init~int(75, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 2 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string37.base, #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 1 + #t~string37.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(30);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(9);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(21);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(30);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(9);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(21);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(30);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(9);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(25);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(30);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(9);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 260#L-1 havoc main_#res;havoc main_#t~ret74, main_~retValue_acc~13, main_~tmp~9;havoc main_~retValue_acc~13;havoc main_~tmp~9; 261#L480 havoc valid_product_#res;havoc valid_product_~retValue_acc~9;havoc valid_product_~retValue_acc~9;valid_product_~retValue_acc~9 := 1;valid_product_#res := valid_product_~retValue_acc~9; 317#L488 main_#t~ret74 := valid_product_#res;main_~tmp~9 := main_#t~ret74;havoc main_#t~ret74; 324#L941 assume 0 != main_~tmp~9; 293#L918 havoc test_#t~nondet21, test_#t~nondet22, test_#t~nondet23, test_#t~nondet24, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 294#L333-1 [2019-12-07 15:46:55,770 INFO L796 eck$LassoCheckResult]: Loop: 294#L333-1 assume !false; 331#L262 assume test_~splverifierCounter~0 < 4; 258#L263 test_~tmp~4 := test_#t~nondet21;havoc test_#t~nondet21; 259#L271 assume !(0 != test_~tmp~4); 281#L271-1 test_~tmp___0~2 := test_#t~nondet22;havoc test_#t~nondet22; 310#L281 assume !(0 != test_~tmp___0~2); 361#L281-1 test_~tmp___2~0 := test_#t~nondet23;havoc test_#t~nondet23; 362#L291 assume 0 != test_~tmp___2~0; 368#L297-2 assume !(0 != ~pumpRunning~0); 344#L58 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret1, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 337#L116 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret0, processEnvironment__wrappee__highWaterSensor_~tmp~0;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0; 338#L90-1 assume !(0 == ~pumpRunning~0); 274#L65 havoc __utac_acc__Specification3_spec__1_#t~ret25, __utac_acc__Specification3_spec__1_#t~ret26, __utac_acc__Specification3_spec__1_#t~ret27, __utac_acc__Specification3_spec__1_~tmp~5, __utac_acc__Specification3_spec__1_~tmp___0~3, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~5;havoc __utac_acc__Specification3_spec__1_~tmp___0~3;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~4;havoc isMethaneLevelCritical_~retValue_acc~4;isMethaneLevelCritical_~retValue_acc~4 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~4; 275#L395 __utac_acc__Specification3_spec__1_#t~ret25 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~5 := __utac_acc__Specification3_spec__1_#t~ret25;havoc __utac_acc__Specification3_spec__1_#t~ret25; 299#L327 assume 0 != __utac_acc__Specification3_spec__1_~tmp~5; 294#L333-1 [2019-12-07 15:46:55,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:46:55,770 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2019-12-07 15:46:55,770 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:46:55,770 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271031703] [2019-12-07 15:46:55,770 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:46:55,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:46:55,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:46:55,838 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 15:46:55,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:46:55,839 INFO L82 PathProgramCache]: Analyzing trace with hash -1996917037, now seen corresponding path program 1 times [2019-12-07 15:46:55,839 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:46:55,839 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012510480] [2019-12-07 15:46:55,839 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:46:55,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:46:55,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 15:46:55,849 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012510480] [2019-12-07 15:46:55,849 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 15:46:55,849 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 15:46:55,849 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735539971] [2019-12-07 15:46:55,850 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-12-07 15:46:55,850 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 15:46:55,850 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 15:46:55,850 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 15:46:55,851 INFO L87 Difference]: Start difference. First operand 113 states and 165 transitions. cyclomatic complexity: 54 Second operand 3 states. [2019-12-07 15:46:55,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 15:46:55,911 INFO L93 Difference]: Finished difference Result 160 states and 222 transitions. [2019-12-07 15:46:55,911 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 15:46:55,912 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 160 states and 222 transitions. [2019-12-07 15:46:55,914 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 110 [2019-12-07 15:46:55,916 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 160 states to 160 states and 222 transitions. [2019-12-07 15:46:55,916 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 160 [2019-12-07 15:46:55,917 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 160 [2019-12-07 15:46:55,917 INFO L73 IsDeterministic]: Start isDeterministic. Operand 160 states and 222 transitions. [2019-12-07 15:46:55,918 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 15:46:55,918 INFO L688 BuchiCegarLoop]: Abstraction has 160 states and 222 transitions. [2019-12-07 15:46:55,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states and 222 transitions. [2019-12-07 15:46:55,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 160. [2019-12-07 15:46:55,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 160 states. [2019-12-07 15:46:55,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 222 transitions. [2019-12-07 15:46:55,927 INFO L711 BuchiCegarLoop]: Abstraction has 160 states and 222 transitions. [2019-12-07 15:46:55,927 INFO L591 BuchiCegarLoop]: Abstraction has 160 states and 222 transitions. [2019-12-07 15:46:55,927 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-12-07 15:46:55,928 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 160 states and 222 transitions. [2019-12-07 15:46:55,929 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 110 [2019-12-07 15:46:55,929 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 15:46:55,929 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 15:46:55,930 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-12-07 15:46:55,930 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 15:46:55,930 INFO L794 eck$LassoCheckResult]: Stem: 655#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;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);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(13);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string31.base, #t~string31.offset, 1);call write~init~int(77, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(101, #t~string31.base, 2 + #t~string31.offset, 1);call write~init~int(116, #t~string31.base, 3 + #t~string31.offset, 1);call write~init~int(104, #t~string31.base, 4 + #t~string31.offset, 1);call write~init~int(58, #t~string31.base, 5 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 6 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string33.base, #t~string33.offset, 1);call write~init~int(82, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(73, #t~string33.base, 2 + #t~string33.offset, 1);call write~init~int(84, #t~string33.base, 3 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 4 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string35.base, #t~string35.offset, 1);call write~init~int(75, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 2 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string37.base, #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 1 + #t~string37.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(30);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(9);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(21);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(30);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(9);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(21);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(30);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(9);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(25);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(30);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(9);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 539#L-1 havoc main_#res;havoc main_#t~ret74, main_~retValue_acc~13, main_~tmp~9;havoc main_~retValue_acc~13;havoc main_~tmp~9; 540#L480 havoc valid_product_#res;havoc valid_product_~retValue_acc~9;havoc valid_product_~retValue_acc~9;valid_product_~retValue_acc~9 := 1;valid_product_#res := valid_product_~retValue_acc~9; 596#L488 main_#t~ret74 := valid_product_#res;main_~tmp~9 := main_#t~ret74;havoc main_#t~ret74; 602#L941 assume 0 != main_~tmp~9; 571#L918 havoc test_#t~nondet21, test_#t~nondet22, test_#t~nondet23, test_#t~nondet24, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 572#L333-1 [2019-12-07 15:46:55,931 INFO L796 eck$LassoCheckResult]: Loop: 572#L333-1 assume !false; 611#L262 assume test_~splverifierCounter~0 < 4; 537#L263 test_~tmp~4 := test_#t~nondet21;havoc test_#t~nondet21; 538#L271 assume !(0 != test_~tmp~4); 559#L271-1 test_~tmp___0~2 := test_#t~nondet22;havoc test_#t~nondet22; 588#L281 assume !(0 != test_~tmp___0~2); 646#L281-1 test_~tmp___2~0 := test_#t~nondet23;havoc test_#t~nondet23; 647#L291 assume 0 != test_~tmp___2~0; 653#L297-2 assume !(0 != ~pumpRunning~0); 625#L58 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret1, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 618#L116 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret0, processEnvironment__wrappee__highWaterSensor_~tmp~0;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0; 619#L90-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret19, isHighWaterLevel_~retValue_acc~2, isHighWaterLevel_~tmp~2, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~2;havoc isHighWaterLevel_~tmp~2;havoc isHighWaterLevel_~tmp___0~0;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~6;havoc isHighWaterSensorDry_~retValue_acc~6; 639#L435-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~6 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~6; 640#L440-1 isHighWaterLevel_#t~ret19 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~2 := isHighWaterLevel_#t~ret19;havoc isHighWaterLevel_#t~ret19; 623#L218-3 assume 0 != isHighWaterLevel_~tmp~2;isHighWaterLevel_~tmp___0~0 := 0; 622#L218-5 isHighWaterLevel_~retValue_acc~2 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~2; 598#L224-1 processEnvironment__wrappee__highWaterSensor_#t~ret0 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~0 := processEnvironment__wrappee__highWaterSensor_#t~ret0;havoc processEnvironment__wrappee__highWaterSensor_#t~ret0; 599#L94-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0); 552#L65 havoc __utac_acc__Specification3_spec__1_#t~ret25, __utac_acc__Specification3_spec__1_#t~ret26, __utac_acc__Specification3_spec__1_#t~ret27, __utac_acc__Specification3_spec__1_~tmp~5, __utac_acc__Specification3_spec__1_~tmp___0~3, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~5;havoc __utac_acc__Specification3_spec__1_~tmp___0~3;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~4;havoc isMethaneLevelCritical_~retValue_acc~4;isMethaneLevelCritical_~retValue_acc~4 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~4; 553#L395 __utac_acc__Specification3_spec__1_#t~ret25 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~5 := __utac_acc__Specification3_spec__1_#t~ret25;havoc __utac_acc__Specification3_spec__1_#t~ret25; 577#L327 assume 0 != __utac_acc__Specification3_spec__1_~tmp~5; 572#L333-1 [2019-12-07 15:46:55,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:46:55,931 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2019-12-07 15:46:55,931 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:46:55,931 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137678679] [2019-12-07 15:46:55,931 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:46:55,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:46:55,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:46:55,992 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 15:46:55,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:46:55,992 INFO L82 PathProgramCache]: Analyzing trace with hash 1058929087, now seen corresponding path program 1 times [2019-12-07 15:46:55,992 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:46:55,993 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741219140] [2019-12-07 15:46:55,993 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:46:55,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:46:55,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:46:56,003 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 15:46:56,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:46:56,003 INFO L82 PathProgramCache]: Analyzing trace with hash 1515000281, now seen corresponding path program 1 times [2019-12-07 15:46:56,003 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:46:56,003 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928245427] [2019-12-07 15:46:56,004 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:46:56,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:46:56,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 15:46:56,041 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928245427] [2019-12-07 15:46:56,041 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 15:46:56,042 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 15:46:56,042 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247342505] [2019-12-07 15:46:56,163 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 15:46:56,163 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 15:46:56,163 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 15:46:56,163 INFO L87 Difference]: Start difference. First operand 160 states and 222 transitions. cyclomatic complexity: 64 Second operand 5 states. [2019-12-07 15:46:56,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 15:46:56,239 INFO L93 Difference]: Finished difference Result 555 states and 776 transitions. [2019-12-07 15:46:56,239 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-07 15:46:56,240 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 555 states and 776 transitions. [2019-12-07 15:46:56,244 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 408 [2019-12-07 15:46:56,248 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 555 states to 555 states and 776 transitions. [2019-12-07 15:46:56,249 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 555 [2019-12-07 15:46:56,250 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 555 [2019-12-07 15:46:56,250 INFO L73 IsDeterministic]: Start isDeterministic. Operand 555 states and 776 transitions. [2019-12-07 15:46:56,252 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 15:46:56,252 INFO L688 BuchiCegarLoop]: Abstraction has 555 states and 776 transitions. [2019-12-07 15:46:56,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states and 776 transitions. [2019-12-07 15:46:56,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 314. [2019-12-07 15:46:56,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 314 states. [2019-12-07 15:46:56,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 430 transitions. [2019-12-07 15:46:56,267 INFO L711 BuchiCegarLoop]: Abstraction has 314 states and 430 transitions. [2019-12-07 15:46:56,268 INFO L591 BuchiCegarLoop]: Abstraction has 314 states and 430 transitions. [2019-12-07 15:46:56,268 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-12-07 15:46:56,268 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 314 states and 430 transitions. [2019-12-07 15:46:56,269 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 220 [2019-12-07 15:46:56,269 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 15:46:56,269 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 15:46:56,270 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-12-07 15:46:56,270 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 15:46:56,270 INFO L794 eck$LassoCheckResult]: Stem: 1399#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;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);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(13);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string31.base, #t~string31.offset, 1);call write~init~int(77, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(101, #t~string31.base, 2 + #t~string31.offset, 1);call write~init~int(116, #t~string31.base, 3 + #t~string31.offset, 1);call write~init~int(104, #t~string31.base, 4 + #t~string31.offset, 1);call write~init~int(58, #t~string31.base, 5 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 6 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string33.base, #t~string33.offset, 1);call write~init~int(82, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(73, #t~string33.base, 2 + #t~string33.offset, 1);call write~init~int(84, #t~string33.base, 3 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 4 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string35.base, #t~string35.offset, 1);call write~init~int(75, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 2 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string37.base, #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 1 + #t~string37.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(30);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(9);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(21);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(30);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(9);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(21);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(30);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(9);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(25);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(30);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(9);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 1274#L-1 havoc main_#res;havoc main_#t~ret74, main_~retValue_acc~13, main_~tmp~9;havoc main_~retValue_acc~13;havoc main_~tmp~9; 1275#L480 havoc valid_product_#res;havoc valid_product_~retValue_acc~9;havoc valid_product_~retValue_acc~9;valid_product_~retValue_acc~9 := 1;valid_product_#res := valid_product_~retValue_acc~9; 1334#L488 main_#t~ret74 := valid_product_#res;main_~tmp~9 := main_#t~ret74;havoc main_#t~ret74; 1341#L941 assume 0 != main_~tmp~9; 1309#L918 havoc test_#t~nondet21, test_#t~nondet22, test_#t~nondet23, test_#t~nondet24, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1310#L333-1 [2019-12-07 15:46:56,271 INFO L796 eck$LassoCheckResult]: Loop: 1310#L333-1 assume !false; 1482#L262 assume test_~splverifierCounter~0 < 4; 1481#L263 test_~tmp~4 := test_#t~nondet21;havoc test_#t~nondet21; 1480#L271 assume !(0 != test_~tmp~4); 1478#L271-1 test_~tmp___0~2 := test_#t~nondet22;havoc test_#t~nondet22; 1477#L281 assume !(0 != test_~tmp___0~2); 1476#L281-1 test_~tmp___2~0 := test_#t~nondet23;havoc test_#t~nondet23; 1475#L291 assume 0 != test_~tmp___2~0; 1473#L297-2 assume !(0 != ~pumpRunning~0); 1449#L58 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret1, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 1470#L116 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret0, processEnvironment__wrappee__highWaterSensor_~tmp~0;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0; 1442#L90-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret19, isHighWaterLevel_~retValue_acc~2, isHighWaterLevel_~tmp~2, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~2;havoc isHighWaterLevel_~tmp~2;havoc isHighWaterLevel_~tmp___0~0;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~6;havoc isHighWaterSensorDry_~retValue_acc~6; 1453#L435-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~6 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~6; 1450#L440-1 isHighWaterLevel_#t~ret19 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~2 := isHighWaterLevel_#t~ret19;havoc isHighWaterLevel_#t~ret19; 1447#L218-3 assume 0 != isHighWaterLevel_~tmp~2;isHighWaterLevel_~tmp___0~0 := 0; 1445#L218-5 isHighWaterLevel_~retValue_acc~2 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~2; 1443#L224-1 processEnvironment__wrappee__highWaterSensor_#t~ret0 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~0 := processEnvironment__wrappee__highWaterSensor_#t~ret0;havoc processEnvironment__wrappee__highWaterSensor_#t~ret0; 1428#L94-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0); 1286#L65 havoc __utac_acc__Specification3_spec__1_#t~ret25, __utac_acc__Specification3_spec__1_#t~ret26, __utac_acc__Specification3_spec__1_#t~ret27, __utac_acc__Specification3_spec__1_~tmp~5, __utac_acc__Specification3_spec__1_~tmp___0~3, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~5;havoc __utac_acc__Specification3_spec__1_~tmp___0~3;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~4;havoc isMethaneLevelCritical_~retValue_acc~4;isMethaneLevelCritical_~retValue_acc~4 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~4; 1287#L395 __utac_acc__Specification3_spec__1_#t~ret25 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~5 := __utac_acc__Specification3_spec__1_#t~ret25;havoc __utac_acc__Specification3_spec__1_#t~ret25; 1313#L327 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~5);havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~5;havoc getWaterLevel_~retValue_acc~5;getWaterLevel_~retValue_acc~5 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~5; 1486#L427 __utac_acc__Specification3_spec__1_#t~ret26 := getWaterLevel_#res;__utac_acc__Specification3_spec__1_~tmp___0~3 := __utac_acc__Specification3_spec__1_#t~ret26;havoc __utac_acc__Specification3_spec__1_#t~ret26; 1484#L333 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~3); 1310#L333-1 [2019-12-07 15:46:56,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:46:56,271 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 4 times [2019-12-07 15:46:56,271 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:46:56,271 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988093894] [2019-12-07 15:46:56,271 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:46:56,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:46:56,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:46:56,311 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 15:46:56,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:46:56,311 INFO L82 PathProgramCache]: Analyzing trace with hash -276388655, now seen corresponding path program 1 times [2019-12-07 15:46:56,311 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:46:56,311 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255598526] [2019-12-07 15:46:56,312 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:46:56,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:46:56,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:46:56,320 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 15:46:56,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:46:56,321 INFO L82 PathProgramCache]: Analyzing trace with hash -78635413, now seen corresponding path program 1 times [2019-12-07 15:46:56,321 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:46:56,321 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492224560] [2019-12-07 15:46:56,321 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:46:56,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:46:56,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:46:56,375 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 15:47:14,840 WARN L192 SmtUtils]: Spent 18.34 s on a formula simplification. DAG size of input: 452 DAG size of output: 400 [2019-12-07 15:47:26,610 WARN L192 SmtUtils]: Spent 11.77 s on a formula simplification that was a NOOP. DAG size: 400 [2019-12-07 15:47:26,674 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 07.12 03:47:26 BoogieIcfgContainer [2019-12-07 15:47:26,674 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-12-07 15:47:26,674 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 15:47:26,674 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 15:47:26,674 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 15:47:26,675 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 03:46:55" (3/4) ... [2019-12-07 15:47:26,676 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-12-07 15:47:26,716 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_afd8c284-f42e-4dc9-b3e0-235ea5ffbe32/bin/uautomizer/witness.graphml [2019-12-07 15:47:26,716 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 15:47:26,717 INFO L168 Benchmark]: Toolchain (without parser) took 32436.29 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 156.8 MB). Free memory was 943.5 MB in the beginning and 1.0 GB in the end (delta: -61.1 MB). Peak memory consumption was 95.7 MB. Max. memory is 11.5 GB. [2019-12-07 15:47:26,717 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 958.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 15:47:26,718 INFO L168 Benchmark]: CACSL2BoogieTranslator took 319.16 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 99.1 MB). Free memory was 938.2 MB in the beginning and 1.1 GB in the end (delta: -144.9 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. [2019-12-07 15:47:26,718 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.38 ms. Allocated memory is still 1.1 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. [2019-12-07 15:47:26,718 INFO L168 Benchmark]: Boogie Preprocessor took 30.27 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 15:47:26,719 INFO L168 Benchmark]: RCFGBuilder took 477.93 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 67.3 MB). Peak memory consumption was 67.3 MB. Max. memory is 11.5 GB. [2019-12-07 15:47:26,719 INFO L168 Benchmark]: BuchiAutomizer took 31517.76 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 57.7 MB). Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: -3.5 MB). Peak memory consumption was 238.3 MB. Max. memory is 11.5 GB. [2019-12-07 15:47:26,719 INFO L168 Benchmark]: Witness Printer took 41.97 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 11.5 GB. [2019-12-07 15:47:26,722 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 958.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 319.16 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 99.1 MB). Free memory was 938.2 MB in the beginning and 1.1 GB in the end (delta: -144.9 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 46.38 ms. Allocated memory is still 1.1 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 30.27 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 477.93 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 67.3 MB). Peak memory consumption was 67.3 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 31517.76 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 57.7 MB). Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: -3.5 MB). Peak memory consumption was 238.3 MB. Max. memory is 11.5 GB. * Witness Printer took 41.97 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 314 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 31.4s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 31.0s. Construction of modules took 0.1s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 241 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 314 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 566 SDtfs, 1292 SDslu, 857 SDs, 0 SdLazy, 81 SolverSat, 38 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont1 unkn0 SFLI1 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: 261]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=6396} State at position 1 is {NULL=0, NULL=0, NULL=6402, NULL=6396, NULL=6419, NULL=0, NULL=0, methaneLevelCritical=0, NULL=6404, NULL=6417, tmp___0=0, tmp=0, NULL=0, NULL=0, NULL=6415, retValue_acc=0, NULL=0, NULL=6399, NULL=0, tmp___1=0, NULL=6423, NULL=0, NULL=0, NULL=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6b064848=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@678a5c8f=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@74937f49=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@494eba06=0, cleanupTimeShifts=4, NULL=6420, tmp=0, NULL=6397, tmp___0=1, NULL=0, NULL=0, systemActive=1, waterLevel=1, NULL=6403, \result=1, NULL=0, NULL=6413, NULL=0, NULL=6418, \result=0, NULL=0, retValue_acc=0, NULL=6411, NULL=0, NULL=0, NULL=6416, \result=1, retValue_acc=0, NULL=6401, head=0, pumpRunning=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5bbfcfb0=0, NULL=6414, \result=0, retValue_acc=1, NULL=6405, NULL=0, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@56e27cb7=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@25ceba24=61, NULL=0, NULL=6398, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1371ee64=0, \result=1, NULL=6406, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@290591a0=0, NULL=6410, NULL=0, tmp=1, tmp___2=61, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@55e0cff3=0, retValue_acc=1, splverifierCounter=0, NULL=0, \result=0, NULL=6407, NULL=6409, NULL=6412, tmp=0, tmp___1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4dfe4572=0, head=0, tmp=1, NULL=0, NULL=6400, NULL=0, NULL=6408} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L50] int pumpRunning = 0; [L51] int systemActive = 1; [L352] int waterLevel = 1; [L353] int methaneLevelCritical = 0; [L662] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L859] int cleanupTimeShifts = 4; [L932] int retValue_acc ; [L933] int tmp ; [L484] int retValue_acc ; [L487] retValue_acc = 1 [L488] return (retValue_acc); [L939] tmp = valid_product() [L941] COND TRUE \read(tmp) [L252] int splverifierCounter ; [L253] int tmp ; [L254] int tmp___0 ; [L255] int tmp___1 ; [L256] int tmp___2 ; [L259] splverifierCounter = 0 Loop: [L261] COND TRUE 1 [L263] COND TRUE splverifierCounter < 4 [L269] tmp = __VERIFIER_nondet_int() [L271] COND FALSE !(\read(tmp)) [L279] tmp___0 = __VERIFIER_nondet_int() [L281] COND FALSE !(\read(tmp___0)) [L289] tmp___2 = __VERIFIER_nondet_int() [L291] COND TRUE \read(tmp___2) [L58] COND FALSE !(\read(pumpRunning)) [L65] COND TRUE \read(systemActive) [L113] int tmp ; [L116] COND FALSE !(\read(pumpRunning)) [L87] int tmp ; [L90] COND TRUE ! pumpRunning [L210] int retValue_acc ; [L211] int tmp ; [L212] int tmp___0 ; [L432] int retValue_acc ; [L435] COND TRUE waterLevel < 2 [L436] retValue_acc = 1 [L437] return (retValue_acc); [L216] tmp = isHighWaterSensorDry() [L218] COND TRUE \read(tmp) [L219] tmp___0 = 0 [L223] retValue_acc = tmp___0 [L224] return (retValue_acc); [L92] tmp = isHighWaterLevel() [L94] COND FALSE !(\read(tmp)) [L319] int tmp ; [L320] int tmp___0 ; [L321] int tmp___1 ; [L391] int retValue_acc ; [L394] retValue_acc = methaneLevelCritical [L395] return (retValue_acc); [L325] tmp = isMethaneLevelCritical() [L327] COND FALSE !(\read(tmp)) [L423] int retValue_acc ; [L426] retValue_acc = waterLevel [L427] return (retValue_acc); [L331] tmp___0 = getWaterLevel() [L333] COND FALSE !(tmp___0 == 2) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...