./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product20.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_e10cfa61-9a77-474b-8c9e-f458810e7994/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_e10cfa61-9a77-474b-8c9e-f458810e7994/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_e10cfa61-9a77-474b-8c9e-f458810e7994/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_e10cfa61-9a77-474b-8c9e-f458810e7994/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product20.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_e10cfa61-9a77-474b-8c9e-f458810e7994/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_e10cfa61-9a77-474b-8c9e-f458810e7994/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 cea13255bd81d7ff756db691b6bf5b4173b6edc1 ........................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 08:54:48,520 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 08:54:48,522 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 08:54:48,533 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 08:54:48,534 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 08:54:48,535 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 08:54:48,536 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 08:54:48,538 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 08:54:48,542 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 08:54:48,545 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 08:54:48,547 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 08:54:48,548 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 08:54:48,554 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 08:54:48,555 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 08:54:48,555 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 08:54:48,556 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 08:54:48,557 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 08:54:48,558 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 08:54:48,559 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 08:54:48,563 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 08:54:48,564 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 08:54:48,565 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 08:54:48,566 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 08:54:48,567 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 08:54:48,568 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 08:54:48,569 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 08:54:48,569 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 08:54:48,570 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 08:54:48,570 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 08:54:48,571 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 08:54:48,571 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 08:54:48,572 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 08:54:48,572 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 08:54:48,573 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 08:54:48,574 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 08:54:48,574 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 08:54:48,575 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 08:54:48,575 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 08:54:48,575 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 08:54:48,576 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 08:54:48,577 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 08:54:48,577 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_e10cfa61-9a77-474b-8c9e-f458810e7994/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-10-22 08:54:48,589 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 08:54:48,589 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 08:54:48,590 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 08:54:48,590 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 08:54:48,590 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 08:54:48,590 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-10-22 08:54:48,591 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-10-22 08:54:48,591 INFO L138 SettingsManager]: * Use old map elimination=false [2019-10-22 08:54:48,591 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-10-22 08:54:48,591 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-10-22 08:54:48,591 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-10-22 08:54:48,591 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 08:54:48,591 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 08:54:48,592 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 08:54:48,592 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 08:54:48,592 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 08:54:48,592 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 08:54:48,592 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-10-22 08:54:48,592 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-10-22 08:54:48,592 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-10-22 08:54:48,592 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 08:54:48,593 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 08:54:48,593 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-10-22 08:54:48,593 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 08:54:48,593 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-10-22 08:54:48,593 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 08:54:48,593 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 08:54:48,593 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-10-22 08:54:48,594 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 08:54:48,594 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 08:54:48,594 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-10-22 08:54:48,594 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-10-22 08:54:48,595 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_e10cfa61-9a77-474b-8c9e-f458810e7994/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 -> cea13255bd81d7ff756db691b6bf5b4173b6edc1 [2019-10-22 08:54:48,631 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 08:54:48,643 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 08:54:48,647 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 08:54:48,649 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 08:54:48,649 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 08:54:48,650 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_e10cfa61-9a77-474b-8c9e-f458810e7994/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec3_product20.cil.c [2019-10-22 08:54:48,704 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e10cfa61-9a77-474b-8c9e-f458810e7994/bin/uautomizer/data/16e52eefa/ff6da61249bf4bada95f1815818d6b5b/FLAGe679b2776 [2019-10-22 08:54:49,155 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 08:54:49,160 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_e10cfa61-9a77-474b-8c9e-f458810e7994/sv-benchmarks/c/product-lines/minepump_spec3_product20.cil.c [2019-10-22 08:54:49,169 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e10cfa61-9a77-474b-8c9e-f458810e7994/bin/uautomizer/data/16e52eefa/ff6da61249bf4bada95f1815818d6b5b/FLAGe679b2776 [2019-10-22 08:54:49,670 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_e10cfa61-9a77-474b-8c9e-f458810e7994/bin/uautomizer/data/16e52eefa/ff6da61249bf4bada95f1815818d6b5b [2019-10-22 08:54:49,672 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 08:54:49,673 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 08:54:49,674 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 08:54:49,674 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 08:54:49,678 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 08:54:49,678 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:54:49" (1/1) ... [2019-10-22 08:54:49,681 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5fda6529 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:49, skipping insertion in model container [2019-10-22 08:54:49,681 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:54:49" (1/1) ... [2019-10-22 08:54:49,688 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 08:54:49,742 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 08:54:50,137 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:54:50,151 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 08:54:50,223 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:54:50,251 INFO L192 MainTranslator]: Completed translation [2019-10-22 08:54:50,252 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:50 WrapperNode [2019-10-22 08:54:50,252 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 08:54:50,253 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 08:54:50,253 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 08:54:50,253 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 08:54:50,268 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:50" (1/1) ... [2019-10-22 08:54:50,298 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:50" (1/1) ... [2019-10-22 08:54:50,349 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 08:54:50,350 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 08:54:50,350 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 08:54:50,350 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 08:54:50,360 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:50" (1/1) ... [2019-10-22 08:54:50,361 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:50" (1/1) ... [2019-10-22 08:54:50,364 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:50" (1/1) ... [2019-10-22 08:54:50,364 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:50" (1/1) ... [2019-10-22 08:54:50,375 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:50" (1/1) ... [2019-10-22 08:54:50,396 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:50" (1/1) ... [2019-10-22 08:54:50,398 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:50" (1/1) ... [2019-10-22 08:54:50,401 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 08:54:50,401 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 08:54:50,402 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 08:54:50,402 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 08:54:50,403 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:50" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e10cfa61-9a77-474b-8c9e-f458810e7994/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 08:54:50,470 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 08:54:50,470 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-22 08:54:50,471 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 08:54:50,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 08:54:51,098 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 08:54:51,098 INFO L284 CfgBuilder]: Removed 108 assume(true) statements. [2019-10-22 08:54:51,099 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:54:51 BoogieIcfgContainer [2019-10-22 08:54:51,099 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 08:54:51,100 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-10-22 08:54:51,100 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-10-22 08:54:51,103 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-10-22 08:54:51,104 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 08:54:51,105 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.10 08:54:49" (1/3) ... [2019-10-22 08:54:51,106 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5b9fa267 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.10 08:54:51, skipping insertion in model container [2019-10-22 08:54:51,106 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 08:54:51,106 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:50" (2/3) ... [2019-10-22 08:54:51,106 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5b9fa267 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.10 08:54:51, skipping insertion in model container [2019-10-22 08:54:51,107 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 08:54:51,107 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:54:51" (3/3) ... [2019-10-22 08:54:51,108 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product20.cil.c [2019-10-22 08:54:51,152 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-10-22 08:54:51,152 INFO L357 BuchiCegarLoop]: Hoare is false [2019-10-22 08:54:51,152 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-10-22 08:54:51,152 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 08:54:51,153 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 08:54:51,153 INFO L361 BuchiCegarLoop]: Difference is false [2019-10-22 08:54:51,153 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 08:54:51,153 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-10-22 08:54:51,174 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 80 states. [2019-10-22 08:54:51,200 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 51 [2019-10-22 08:54:51,201 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 08:54:51,201 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 08:54:51,210 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-10-22 08:54:51,211 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:54:51,211 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-10-22 08:54:51,211 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 80 states. [2019-10-22 08:54:51,214 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 51 [2019-10-22 08:54:51,214 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 08:54:51,214 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 08:54:51,214 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-10-22 08:54:51,215 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:54:51,220 INFO L791 eck$LassoCheckResult]: Stem: 32#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~head~0.base, ~head~0.offset := 0, 0;call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(30);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(9);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(21);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(30);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(9);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(25);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(30);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(9);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(25);~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(13);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string45.base, #t~string45.offset, 1);call write~init~int(110, #t~string45.base, 1 + #t~string45.offset, 1);call write~init~int(0, #t~string45.base, 2 + #t~string45.offset, 1);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string47.base, #t~string47.offset, 1);call write~init~int(102, #t~string47.base, 1 + #t~string47.offset, 1);call write~init~int(102, #t~string47.base, 2 + #t~string47.offset, 1);call write~init~int(0, #t~string47.base, 3 + #t~string47.offset, 1);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string49.base, #t~string49.offset, 1);call write~init~int(80, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(117, #t~string49.base, 2 + #t~string49.offset, 1);call write~init~int(109, #t~string49.base, 3 + #t~string49.offset, 1);call write~init~int(112, #t~string49.base, 4 + #t~string49.offset, 1);call write~init~int(58, #t~string49.base, 5 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 6 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string51.base, #t~string51.offset, 1);call write~init~int(110, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 2 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(102, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(102, #t~string53.base, 2 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 3 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string55.base, #t~string55.offset, 1);call write~init~int(32, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 2 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string57.base, #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 1 + #t~string57.offset, 1);~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); 13#L-1true havoc main_#res;havoc main_#t~ret36, main_~retValue_acc~5, main_~tmp~3;havoc main_~retValue_acc~5;havoc main_~tmp~3; 19#L65true havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 12#L73true main_#t~ret36 := valid_product_#res;main_~tmp~3 := main_#t~ret36;havoc main_#t~ret36; 33#L531true assume 0 != main_~tmp~3; 80#L507true havoc test_#t~nondet59, test_#t~nondet60, test_#t~nondet61, test_#t~nondet62, test_~splverifierCounter~0, test_~tmp~7, test_~tmp___0~2, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~7;havoc test_~tmp___0~2;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 34#L564-1true [2019-10-22 08:54:51,221 INFO L793 eck$LassoCheckResult]: Loop: 34#L564-1true assume !false; 36#L776true assume test_~splverifierCounter~0 < 4; 53#L777true test_~tmp~7 := test_#t~nondet59;havoc test_#t~nondet59; 78#L785true assume !(0 != test_~tmp~7); 81#L785-1true test_~tmp___0~2 := test_#t~nondet60;havoc test_#t~nondet60; 58#L795true assume !(0 != test_~tmp___0~2); 59#L795-1true test_~tmp___2~0 := test_#t~nondet61;havoc test_#t~nondet61; 44#L805true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 49#L813-1true assume !(0 != ~pumpRunning~0); 52#L597true assume !(0 != ~systemActive~0); 40#L604true havoc __utac_acc__Specification3_spec__1_#t~ret37, __utac_acc__Specification3_spec__1_#t~ret38, __utac_acc__Specification3_spec__1_#t~ret39, __utac_acc__Specification3_spec__1_~tmp~4, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~4;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~9;havoc isMethaneLevelCritical_~retValue_acc~9;isMethaneLevelCritical_~retValue_acc~9 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~9; 5#L877true __utac_acc__Specification3_spec__1_#t~ret37 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~4 := __utac_acc__Specification3_spec__1_#t~ret37;havoc __utac_acc__Specification3_spec__1_#t~ret37; 61#L558true assume 0 != __utac_acc__Specification3_spec__1_~tmp~4; 34#L564-1true [2019-10-22 08:54:51,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:54:51,227 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2019-10-22 08:54:51,235 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:54:51,235 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1898930098] [2019-10-22 08:54:51,235 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:51,236 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:51,236 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:54:51,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:54:52,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:54:52,075 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:54:52,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:54:52,076 INFO L82 PathProgramCache]: Analyzing trace with hash -1672140737, now seen corresponding path program 1 times [2019-10-22 08:54:52,077 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:54:52,077 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676862103] [2019-10-22 08:54:52,077 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:52,077 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:52,077 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:54:52,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:54:52,138 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 08:54:52,138 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676862103] [2019-10-22 08:54:52,139 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:54:52,139 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 08:54:52,139 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154131432] [2019-10-22 08:54:52,147 INFO L808 eck$LassoCheckResult]: loop already infeasible [2019-10-22 08:54:52,148 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:54:52,164 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 08:54:52,164 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 08:54:52,166 INFO L87 Difference]: Start difference. First operand 80 states. Second operand 3 states. [2019-10-22 08:54:52,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:54:52,252 INFO L93 Difference]: Finished difference Result 154 states and 216 transitions. [2019-10-22 08:54:52,255 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 08:54:52,257 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 154 states and 216 transitions. [2019-10-22 08:54:52,262 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 98 [2019-10-22 08:54:52,275 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 154 states to 140 states and 201 transitions. [2019-10-22 08:54:52,276 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 140 [2019-10-22 08:54:52,277 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 140 [2019-10-22 08:54:52,278 INFO L73 IsDeterministic]: Start isDeterministic. Operand 140 states and 201 transitions. [2019-10-22 08:54:52,279 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-10-22 08:54:52,279 INFO L688 BuchiCegarLoop]: Abstraction has 140 states and 201 transitions. [2019-10-22 08:54:52,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states and 201 transitions. [2019-10-22 08:54:52,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 138. [2019-10-22 08:54:52,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2019-10-22 08:54:52,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 198 transitions. [2019-10-22 08:54:52,323 INFO L711 BuchiCegarLoop]: Abstraction has 138 states and 198 transitions. [2019-10-22 08:54:52,323 INFO L591 BuchiCegarLoop]: Abstraction has 138 states and 198 transitions. [2019-10-22 08:54:52,323 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-10-22 08:54:52,332 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 138 states and 198 transitions. [2019-10-22 08:54:52,334 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 96 [2019-10-22 08:54:52,334 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 08:54:52,335 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 08:54:52,335 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-10-22 08:54:52,335 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:54:52,336 INFO L791 eck$LassoCheckResult]: Stem: 288#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~head~0.base, ~head~0.offset := 0, 0;call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(30);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(9);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(21);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(30);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(9);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(25);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(30);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(9);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(25);~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(13);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string45.base, #t~string45.offset, 1);call write~init~int(110, #t~string45.base, 1 + #t~string45.offset, 1);call write~init~int(0, #t~string45.base, 2 + #t~string45.offset, 1);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string47.base, #t~string47.offset, 1);call write~init~int(102, #t~string47.base, 1 + #t~string47.offset, 1);call write~init~int(102, #t~string47.base, 2 + #t~string47.offset, 1);call write~init~int(0, #t~string47.base, 3 + #t~string47.offset, 1);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string49.base, #t~string49.offset, 1);call write~init~int(80, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(117, #t~string49.base, 2 + #t~string49.offset, 1);call write~init~int(109, #t~string49.base, 3 + #t~string49.offset, 1);call write~init~int(112, #t~string49.base, 4 + #t~string49.offset, 1);call write~init~int(58, #t~string49.base, 5 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 6 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string51.base, #t~string51.offset, 1);call write~init~int(110, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 2 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(102, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(102, #t~string53.base, 2 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 3 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string55.base, #t~string55.offset, 1);call write~init~int(32, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 2 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string57.base, #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 1 + #t~string57.offset, 1);~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); 262#L-1 havoc main_#res;havoc main_#t~ret36, main_~retValue_acc~5, main_~tmp~3;havoc main_~retValue_acc~5;havoc main_~tmp~3; 263#L65 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 260#L73 main_#t~ret36 := valid_product_#res;main_~tmp~3 := main_#t~ret36;havoc main_#t~ret36; 261#L531 assume 0 != main_~tmp~3; 289#L507 havoc test_#t~nondet59, test_#t~nondet60, test_#t~nondet61, test_#t~nondet62, test_~splverifierCounter~0, test_~tmp~7, test_~tmp___0~2, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~7;havoc test_~tmp___0~2;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 284#L564-1 [2019-10-22 08:54:52,336 INFO L793 eck$LassoCheckResult]: Loop: 284#L564-1 assume !false; 290#L776 assume test_~splverifierCounter~0 < 4; 291#L777 test_~tmp~7 := test_#t~nondet59;havoc test_#t~nondet59; 374#L785 assume !(0 != test_~tmp~7); 372#L785-1 test_~tmp___0~2 := test_#t~nondet60;havoc test_#t~nondet60; 371#L795 assume !(0 != test_~tmp___0~2); 369#L795-1 test_~tmp___2~0 := test_#t~nondet61;havoc test_#t~nondet61; 366#L805 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 301#L813-1 assume !(0 != ~pumpRunning~0); 308#L597 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret40, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 279#L629 assume !(0 != ~pumpRunning~0); 275#L604 havoc __utac_acc__Specification3_spec__1_#t~ret37, __utac_acc__Specification3_spec__1_#t~ret38, __utac_acc__Specification3_spec__1_#t~ret39, __utac_acc__Specification3_spec__1_~tmp~4, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~4;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~9;havoc isMethaneLevelCritical_~retValue_acc~9;isMethaneLevelCritical_~retValue_acc~9 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~9; 247#L877 __utac_acc__Specification3_spec__1_#t~ret37 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~4 := __utac_acc__Specification3_spec__1_#t~ret37;havoc __utac_acc__Specification3_spec__1_#t~ret37; 248#L558 assume 0 != __utac_acc__Specification3_spec__1_~tmp~4; 284#L564-1 [2019-10-22 08:54:52,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:54:52,337 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2019-10-22 08:54:52,337 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:54:52,337 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458946473] [2019-10-22 08:54:52,337 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:52,337 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:52,338 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:54:52,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:54:52,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:54:52,795 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:54:52,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:54:52,795 INFO L82 PathProgramCache]: Analyzing trace with hash -323747826, now seen corresponding path program 1 times [2019-10-22 08:54:52,796 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:54:52,796 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31084393] [2019-10-22 08:54:52,797 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:52,797 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:52,797 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:54:52,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:54:52,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:54:52,810 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:54:52,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:54:52,810 INFO L82 PathProgramCache]: Analyzing trace with hash 1279291700, now seen corresponding path program 1 times [2019-10-22 08:54:52,811 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:54:52,811 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720905388] [2019-10-22 08:54:52,811 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:52,811 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:52,811 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:54:52,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:54:52,875 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 08:54:52,875 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720905388] [2019-10-22 08:54:52,876 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:54:52,876 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 08:54:52,876 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046041084] [2019-10-22 08:54:53,012 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:54:53,012 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 08:54:53,013 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 08:54:53,013 INFO L87 Difference]: Start difference. First operand 138 states and 198 transitions. cyclomatic complexity: 63 Second operand 5 states. [2019-10-22 08:54:53,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:54:53,138 INFO L93 Difference]: Finished difference Result 469 states and 686 transitions. [2019-10-22 08:54:53,139 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-22 08:54:53,139 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 469 states and 686 transitions. [2019-10-22 08:54:53,145 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 348 [2019-10-22 08:54:53,149 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 469 states to 469 states and 686 transitions. [2019-10-22 08:54:53,149 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 469 [2019-10-22 08:54:53,150 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 469 [2019-10-22 08:54:53,151 INFO L73 IsDeterministic]: Start isDeterministic. Operand 469 states and 686 transitions. [2019-10-22 08:54:53,153 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-10-22 08:54:53,153 INFO L688 BuchiCegarLoop]: Abstraction has 469 states and 686 transitions. [2019-10-22 08:54:53,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states and 686 transitions. [2019-10-22 08:54:53,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 270. [2019-10-22 08:54:53,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 270 states. [2019-10-22 08:54:53,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 382 transitions. [2019-10-22 08:54:53,185 INFO L711 BuchiCegarLoop]: Abstraction has 270 states and 382 transitions. [2019-10-22 08:54:53,185 INFO L591 BuchiCegarLoop]: Abstraction has 270 states and 382 transitions. [2019-10-22 08:54:53,185 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-10-22 08:54:53,186 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 270 states and 382 transitions. [2019-10-22 08:54:53,187 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 192 [2019-10-22 08:54:53,187 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 08:54:53,190 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 08:54:53,190 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-10-22 08:54:53,191 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:54:53,191 INFO L791 eck$LassoCheckResult]: Stem: 915#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~head~0.base, ~head~0.offset := 0, 0;call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(30);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(9);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(21);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(30);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(9);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(25);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(30);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(9);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(25);~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(13);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string45.base, #t~string45.offset, 1);call write~init~int(110, #t~string45.base, 1 + #t~string45.offset, 1);call write~init~int(0, #t~string45.base, 2 + #t~string45.offset, 1);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string47.base, #t~string47.offset, 1);call write~init~int(102, #t~string47.base, 1 + #t~string47.offset, 1);call write~init~int(102, #t~string47.base, 2 + #t~string47.offset, 1);call write~init~int(0, #t~string47.base, 3 + #t~string47.offset, 1);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string49.base, #t~string49.offset, 1);call write~init~int(80, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(117, #t~string49.base, 2 + #t~string49.offset, 1);call write~init~int(109, #t~string49.base, 3 + #t~string49.offset, 1);call write~init~int(112, #t~string49.base, 4 + #t~string49.offset, 1);call write~init~int(58, #t~string49.base, 5 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 6 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string51.base, #t~string51.offset, 1);call write~init~int(110, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 2 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(102, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(102, #t~string53.base, 2 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 3 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string55.base, #t~string55.offset, 1);call write~init~int(32, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 2 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string57.base, #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 1 + #t~string57.offset, 1);~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); 887#L-1 havoc main_#res;havoc main_#t~ret36, main_~retValue_acc~5, main_~tmp~3;havoc main_~retValue_acc~5;havoc main_~tmp~3; 888#L65 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 885#L73 main_#t~ret36 := valid_product_#res;main_~tmp~3 := main_#t~ret36;havoc main_#t~ret36; 886#L531 assume 0 != main_~tmp~3; 916#L507 havoc test_#t~nondet59, test_#t~nondet60, test_#t~nondet61, test_#t~nondet62, test_~splverifierCounter~0, test_~tmp~7, test_~tmp___0~2, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~7;havoc test_~tmp___0~2;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 970#L564-1 [2019-10-22 08:54:53,191 INFO L793 eck$LassoCheckResult]: Loop: 970#L564-1 assume !false; 1004#L776 assume test_~splverifierCounter~0 < 4; 944#L777 test_~tmp~7 := test_#t~nondet59;havoc test_#t~nondet59; 945#L785 assume !(0 != test_~tmp~7); 890#L785-1 test_~tmp___0~2 := test_#t~nondet60;havoc test_#t~nondet60; 950#L795 assume !(0 != test_~tmp___0~2); 951#L795-1 test_~tmp___2~0 := test_#t~nondet61;havoc test_#t~nondet61; 1049#L805 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 932#L813-1 assume !(0 != ~pumpRunning~0); 1044#L597 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret40, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 1042#L629 assume !(0 != ~pumpRunning~0); 1037#L604 havoc __utac_acc__Specification3_spec__1_#t~ret37, __utac_acc__Specification3_spec__1_#t~ret38, __utac_acc__Specification3_spec__1_#t~ret39, __utac_acc__Specification3_spec__1_~tmp~4, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~4;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~9;havoc isMethaneLevelCritical_~retValue_acc~9;isMethaneLevelCritical_~retValue_acc~9 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~9; 872#L877 __utac_acc__Specification3_spec__1_#t~ret37 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~4 := __utac_acc__Specification3_spec__1_#t~ret37;havoc __utac_acc__Specification3_spec__1_#t~ret37; 873#L558 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~4);havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~10;havoc getWaterLevel_~retValue_acc~10;getWaterLevel_~retValue_acc~10 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~10; 953#L909 __utac_acc__Specification3_spec__1_#t~ret38 := getWaterLevel_#res;__utac_acc__Specification3_spec__1_~tmp___0~0 := __utac_acc__Specification3_spec__1_#t~ret38;havoc __utac_acc__Specification3_spec__1_#t~ret38; 1009#L564 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~0); 970#L564-1 [2019-10-22 08:54:53,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:54:53,191 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2019-10-22 08:54:53,192 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:54:53,192 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925906341] [2019-10-22 08:54:53,192 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:53,192 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:53,192 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:54:53,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:54:53,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:54:53,523 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:54:53,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:54:53,524 INFO L82 PathProgramCache]: Analyzing trace with hash -1884009248, now seen corresponding path program 1 times [2019-10-22 08:54:53,524 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:54:53,524 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589041478] [2019-10-22 08:54:53,524 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:53,525 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:53,525 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:54:53,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:54:53,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:54:53,534 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:54:53,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:54:53,535 INFO L82 PathProgramCache]: Analyzing trace with hash 1038683270, now seen corresponding path program 1 times [2019-10-22 08:54:53,535 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:54:53,535 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885578067] [2019-10-22 08:54:53,536 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:53,536 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:53,536 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:54:53,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:54:53,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:54:53,827 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:55:19,217 WARN L191 SmtUtils]: Spent 25.24 s on a formula simplification. DAG size of input: 451 DAG size of output: 449 [2019-10-22 08:55:32,004 WARN L191 SmtUtils]: Spent 12.79 s on a formula simplification that was a NOOP. DAG size: 449 [2019-10-22 08:55:32,067 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.10 08:55:32 BoogieIcfgContainer [2019-10-22 08:55:32,068 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-10-22 08:55:32,070 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 08:55:32,070 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 08:55:32,070 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 08:55:32,070 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:54:51" (3/4) ... [2019-10-22 08:55:32,073 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-10-22 08:55:32,133 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_e10cfa61-9a77-474b-8c9e-f458810e7994/bin/uautomizer/witness.graphml [2019-10-22 08:55:32,133 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 08:55:32,134 INFO L168 Benchmark]: Toolchain (without parser) took 42460.86 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 357.6 MB). Free memory was 940.9 MB in the beginning and 1.3 GB in the end (delta: -356.7 MB). Peak memory consumption was 908.4 kB. Max. memory is 11.5 GB. [2019-10-22 08:55:32,135 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 958.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:55:32,135 INFO L168 Benchmark]: CACSL2BoogieTranslator took 578.06 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 935.6 MB in the beginning and 1.1 GB in the end (delta: -183.8 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. [2019-10-22 08:55:32,135 INFO L168 Benchmark]: Boogie Procedure Inliner took 97.14 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 08:55:32,135 INFO L168 Benchmark]: Boogie Preprocessor took 51.27 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 08:55:32,136 INFO L168 Benchmark]: RCFGBuilder took 698.20 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: 61.5 MB). Peak memory consumption was 61.5 MB. Max. memory is 11.5 GB. [2019-10-22 08:55:32,136 INFO L168 Benchmark]: BuchiAutomizer took 40969.34 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 214.4 MB). Free memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: -243.3 MB). Peak memory consumption was 413.6 MB. Max. memory is 11.5 GB. [2019-10-22 08:55:32,136 INFO L168 Benchmark]: Witness Printer took 63.33 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: 3.6 MB). Peak memory consumption was 3.6 MB. Max. memory is 11.5 GB. [2019-10-22 08:55:32,138 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 958.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 578.06 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 935.6 MB in the beginning and 1.1 GB in the end (delta: -183.8 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 97.14 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. * Boogie Preprocessor took 51.27 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 698.20 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: 61.5 MB). Peak memory consumption was 61.5 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 40969.34 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 214.4 MB). Free memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: -243.3 MB). Peak memory consumption was 413.6 MB. Max. memory is 11.5 GB. * Witness Printer took 63.33 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: 3.6 MB). Peak memory consumption was 3.6 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 270 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 40.8s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 40.4s. Construction of modules took 0.0s. 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, 201 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 270 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 258 SDtfs, 499 SDslu, 532 SDs, 0 SdLazy, 53 SolverSat, 17 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s 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: 775]: 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 {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7e84c169=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@58137668=0, NULL=0, NULL=0, NULL=-11, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@ee945d2=0, retValue_acc=1, NULL=0, NULL=0, retValue_acc=0, NULL=0, NULL=-2, NULL=-4, methaneLevelCritical=0, NULL=0, NULL=-1, NULL=0, tmp=0, NULL=-6, tmp___1=0, NULL=-15, NULL=-23, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@10761500=0, tmp___0=1, NULL=-18, NULL=-17, cleanupTimeShifts=4, NULL=-12, tmp=0, NULL=-13, NULL=-3, NULL=0, NULL=0, NULL=0, NULL=0, systemActive=1, waterLevel=1, \result=1, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7e91eb50=0, retValue_acc=0, NULL=0, NULL=-16, NULL=0, NULL=0, NULL=0, \result=1, head=0, pumpRunning=0, NULL=-19, NULL=-9, \result=0, NULL=-24, tmp=1, NULL=0, NULL=-5, NULL=0, NULL=0, NULL=0, NULL=-20, NULL=0, retValue_acc=1, tmp___2=56, tmp___0=0, NULL=-10, splverifierCounter=0, \result=0, NULL=-7, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2ff5b087=0, tmp___1=0, head=0, NULL=0, tmp=0, NULL=-22, NULL=0, NULL=-21, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3b59ff76=0, NULL=-14, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3ffafd5c=56, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@35c695bf=0, NULL=0, NULL=-25, NULL=-8} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L247] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L444] int cleanupTimeShifts = 4; [L590] int pumpRunning = 0; [L591] int systemActive = 1; [L834] int waterLevel = 1; [L835] int methaneLevelCritical = 0; [L522] int retValue_acc ; [L523] int tmp ; [L69] int retValue_acc ; [L72] retValue_acc = 1 [L73] return (retValue_acc); [L529] tmp = valid_product() [L531] COND TRUE \read(tmp) [L766] int splverifierCounter ; [L767] int tmp ; [L768] int tmp___0 ; [L769] int tmp___1 ; [L770] int tmp___2 ; [L773] splverifierCounter = 0 Loop: [L775] COND TRUE 1 [L777] COND TRUE splverifierCounter < 4 [L783] tmp = __VERIFIER_nondet_int() [L785] COND FALSE !(\read(tmp)) [L793] tmp___0 = __VERIFIER_nondet_int() [L795] COND FALSE !(\read(tmp___0)) [L803] tmp___2 = __VERIFIER_nondet_int() [L805] COND TRUE \read(tmp___2) [L760] systemActive = 1 [L597] COND FALSE !(\read(pumpRunning)) [L604] COND TRUE \read(systemActive) [L626] int tmp ; [L629] COND FALSE !(\read(pumpRunning)) [L550] int tmp ; [L551] int tmp___0 ; [L552] int tmp___1 ; [L873] int retValue_acc ; [L876] retValue_acc = methaneLevelCritical [L877] return (retValue_acc); [L556] tmp = isMethaneLevelCritical() [L558] COND FALSE !(\read(tmp)) [L905] int retValue_acc ; [L908] retValue_acc = waterLevel [L909] return (retValue_acc); [L562] tmp___0 = getWaterLevel() [L564] COND FALSE !(tmp___0 == 2) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...