./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product30.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/run_dir_d9fe12a3-4b36-42af-b412-4763d8c26ae3/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_d9fe12a3-4b36-42af-b412-4763d8c26ae3/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_d9fe12a3-4b36-42af-b412-4763d8c26ae3/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_d9fe12a3-4b36-42af-b412-4763d8c26ae3/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product30.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_d9fe12a3-4b36-42af-b412-4763d8c26ae3/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_d9fe12a3-4b36-42af-b412-4763d8c26ae3/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 cd03795a63c29b127effb5dc5ece6588a3bdb5e0 .......................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 [2019-11-15 20:09:15,348 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 20:09:15,349 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 20:09:15,360 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 20:09:15,360 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 20:09:15,361 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 20:09:15,362 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 20:09:15,364 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 20:09:15,366 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 20:09:15,367 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 20:09:15,368 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 20:09:15,370 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 20:09:15,370 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 20:09:15,371 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 20:09:15,372 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 20:09:15,373 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 20:09:15,374 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 20:09:15,375 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 20:09:15,376 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 20:09:15,378 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 20:09:15,380 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 20:09:15,381 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 20:09:15,382 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 20:09:15,383 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 20:09:15,385 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 20:09:15,386 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 20:09:15,386 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 20:09:15,387 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 20:09:15,387 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 20:09:15,388 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 20:09:15,389 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 20:09:15,389 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 20:09:15,390 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 20:09:15,391 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 20:09:15,392 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 20:09:15,392 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 20:09:15,393 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 20:09:15,393 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 20:09:15,393 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 20:09:15,394 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 20:09:15,395 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 20:09:15,396 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_d9fe12a3-4b36-42af-b412-4763d8c26ae3/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-15 20:09:15,411 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 20:09:15,411 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 20:09:15,412 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 20:09:15,413 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 20:09:15,413 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 20:09:15,413 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-15 20:09:15,413 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-15 20:09:15,414 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-15 20:09:15,414 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-15 20:09:15,414 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-15 20:09:15,414 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-15 20:09:15,415 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 20:09:15,415 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-15 20:09:15,415 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-15 20:09:15,415 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-15 20:09:15,416 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-15 20:09:15,416 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 20:09:15,416 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-15 20:09:15,416 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-15 20:09:15,417 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-15 20:09:15,417 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-15 20:09:15,417 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 20:09:15,417 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-15 20:09:15,418 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 20:09:15,418 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-15 20:09:15,418 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 20:09:15,418 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 20:09:15,419 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-15 20:09:15,419 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 20:09:15,419 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-15 20:09:15,419 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-15 20:09:15,420 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-15 20:09:15,421 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_d9fe12a3-4b36-42af-b412-4763d8c26ae3/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 -> cd03795a63c29b127effb5dc5ece6588a3bdb5e0 [2019-11-15 20:09:15,447 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 20:09:15,458 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 20:09:15,461 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 20:09:15,462 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 20:09:15,463 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 20:09:15,464 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_d9fe12a3-4b36-42af-b412-4763d8c26ae3/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec3_product30.cil.c [2019-11-15 20:09:15,525 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d9fe12a3-4b36-42af-b412-4763d8c26ae3/bin/uautomizer/data/3c1c9f361/4db0c858901f4b7cadc094f72c62280b/FLAG55933ddf6 [2019-11-15 20:09:15,942 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 20:09:15,943 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_d9fe12a3-4b36-42af-b412-4763d8c26ae3/sv-benchmarks/c/product-lines/minepump_spec3_product30.cil.c [2019-11-15 20:09:15,965 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d9fe12a3-4b36-42af-b412-4763d8c26ae3/bin/uautomizer/data/3c1c9f361/4db0c858901f4b7cadc094f72c62280b/FLAG55933ddf6 [2019-11-15 20:09:16,256 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_d9fe12a3-4b36-42af-b412-4763d8c26ae3/bin/uautomizer/data/3c1c9f361/4db0c858901f4b7cadc094f72c62280b [2019-11-15 20:09:16,258 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 20:09:16,260 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 20:09:16,260 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 20:09:16,260 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 20:09:16,263 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 20:09:16,264 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 08:09:16" (1/1) ... [2019-11-15 20:09:16,266 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6cca4f7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:09:16, skipping insertion in model container [2019-11-15 20:09:16,266 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 08:09:16" (1/1) ... [2019-11-15 20:09:16,271 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 20:09:16,310 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 20:09:16,723 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 20:09:16,746 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 20:09:16,819 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 20:09:16,862 INFO L192 MainTranslator]: Completed translation [2019-11-15 20:09:16,863 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:09:16 WrapperNode [2019-11-15 20:09:16,863 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 20:09:16,864 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 20:09:16,864 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 20:09:16,864 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 20:09:16,871 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:09:16" (1/1) ... [2019-11-15 20:09:16,896 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:09:16" (1/1) ... [2019-11-15 20:09:16,932 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 20:09:16,932 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 20:09:16,932 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 20:09:16,932 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 20:09:16,941 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:09:16" (1/1) ... [2019-11-15 20:09:16,942 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:09:16" (1/1) ... [2019-11-15 20:09:16,946 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:09:16" (1/1) ... [2019-11-15 20:09:16,947 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:09:16" (1/1) ... [2019-11-15 20:09:16,958 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:09:16" (1/1) ... [2019-11-15 20:09:16,966 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:09:16" (1/1) ... [2019-11-15 20:09:16,969 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:09:16" (1/1) ... [2019-11-15 20:09:16,986 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 20:09:16,987 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 20:09:16,987 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 20:09:16,987 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 20:09:16,988 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:09:16" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d9fe12a3-4b36-42af-b412-4763d8c26ae3/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 20:09:17,049 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-15 20:09:17,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-15 20:09:17,049 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 20:09:17,050 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 20:09:17,762 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 20:09:17,763 INFO L284 CfgBuilder]: Removed 164 assume(true) statements. [2019-11-15 20:09:17,764 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 08:09:17 BoogieIcfgContainer [2019-11-15 20:09:17,764 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 20:09:17,764 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-15 20:09:17,765 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-15 20:09:17,768 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-15 20:09:17,769 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-15 20:09:17,769 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 15.11 08:09:16" (1/3) ... [2019-11-15 20:09:17,771 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@45a4fbfb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.11 08:09:17, skipping insertion in model container [2019-11-15 20:09:17,771 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-15 20:09:17,771 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:09:16" (2/3) ... [2019-11-15 20:09:17,772 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@45a4fbfb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.11 08:09:17, skipping insertion in model container [2019-11-15 20:09:17,772 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-15 20:09:17,772 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 08:09:17" (3/3) ... [2019-11-15 20:09:17,775 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product30.cil.c [2019-11-15 20:09:17,837 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-15 20:09:17,837 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-15 20:09:17,837 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-15 20:09:17,838 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 20:09:17,838 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 20:09:17,838 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-15 20:09:17,838 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 20:09:17,838 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-15 20:09:17,860 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 108 states. [2019-11-15 20:09:17,886 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 69 [2019-11-15 20:09:17,886 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-15 20:09:17,886 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-15 20:09:17,892 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-15 20:09:17,892 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 20:09:17,892 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-15 20:09:17,892 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 108 states. [2019-11-15 20:09:17,899 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 69 [2019-11-15 20:09:17,899 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-15 20:09:17,899 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-15 20:09:17,900 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-15 20:09:17,900 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 20:09:17,905 INFO L791 eck$LassoCheckResult]: Stem: 72#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13);call #t~string3.base, #t~string3.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string3.base, #t~string3.offset, 1);call write~init~int(77, #t~string3.base, 1 + #t~string3.offset, 1);call write~init~int(101, #t~string3.base, 2 + #t~string3.offset, 1);call write~init~int(116, #t~string3.base, 3 + #t~string3.offset, 1);call write~init~int(104, #t~string3.base, 4 + #t~string3.offset, 1);call write~init~int(58, #t~string3.base, 5 + #t~string3.offset, 1);call write~init~int(0, #t~string3.base, 6 + #t~string3.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string5.base, #t~string5.offset, 1);call write~init~int(82, #t~string5.base, 1 + #t~string5.offset, 1);call write~init~int(73, #t~string5.base, 2 + #t~string5.offset, 1);call write~init~int(84, #t~string5.base, 3 + #t~string5.offset, 1);call write~init~int(0, #t~string5.base, 4 + #t~string5.offset, 1);call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string7.base, #t~string7.offset, 1);call write~init~int(75, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 2 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string9.base, #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 1 + #t~string9.offset, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(30);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(9);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(21);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(30);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(9);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(21);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(25);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(30);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(9);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(13);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string57.base, #t~string57.offset, 1);call write~init~int(110, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 2 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string59.base, #t~string59.offset, 1);call write~init~int(102, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(102, #t~string59.base, 2 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 3 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string61.base, #t~string61.offset, 1);call write~init~int(80, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(117, #t~string61.base, 2 + #t~string61.offset, 1);call write~init~int(109, #t~string61.base, 3 + #t~string61.offset, 1);call write~init~int(112, #t~string61.base, 4 + #t~string61.offset, 1);call write~init~int(58, #t~string61.base, 5 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 6 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(110, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 2 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 3 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string67.base, #t~string67.offset, 1);call write~init~int(32, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 2 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string69.base, #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 1 + #t~string69.offset, 1); 17#L-1true havoc main_#res;havoc main_#t~ret10, main_~retValue_acc~3, main_~tmp~0;havoc main_~retValue_acc~3;havoc main_~tmp~0; 4#L910true havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 30#L918true main_#t~ret10 := valid_product_#res;main_~tmp~0 := main_#t~ret10;havoc main_#t~ret10; 41#L224true assume 0 != main_~tmp~0; 5#L197true havoc test_#t~nondet46, test_#t~nondet47, test_#t~nondet48, test_#t~nondet49, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 76#L938-1true [2019-11-15 20:09:17,905 INFO L793 eck$LassoCheckResult]: Loop: 76#L938-1true assume !false; 79#L616true assume test_~splverifierCounter~0 < 4; 57#L617true test_~tmp~4 := test_#t~nondet46;havoc test_#t~nondet46; 69#L625true assume !(0 != test_~tmp~4); 71#L625-1true test_~tmp___0~0 := test_#t~nondet47;havoc test_#t~nondet47; 107#L635true assume !(0 != test_~tmp___0~0); 109#L635-1true test_~tmp___2~0 := test_#t~nondet48;havoc test_#t~nondet48; 43#L645true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 53#L653-2true assume !(0 != ~pumpRunning~0); 65#L683true assume !(0 != ~systemActive~0); 102#L690true havoc __utac_acc__Specification3_spec__1_#t~ret72, __utac_acc__Specification3_spec__1_#t~ret73, __utac_acc__Specification3_spec__1_#t~ret74, __utac_acc__Specification3_spec__1_~tmp~9, __utac_acc__Specification3_spec__1_~tmp___0~2, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~9;havoc __utac_acc__Specification3_spec__1_~tmp___0~2;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 110#L90-1true __utac_acc__Specification3_spec__1_#t~ret72 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~9 := __utac_acc__Specification3_spec__1_#t~ret72;havoc __utac_acc__Specification3_spec__1_#t~ret72; 3#L932true assume 0 != __utac_acc__Specification3_spec__1_~tmp~9; 76#L938-1true [2019-11-15 20:09:17,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:09:17,911 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2019-11-15 20:09:17,919 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:09:17,919 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1227875612] [2019-11-15 20:09:17,919 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:09:17,920 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:09:17,920 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:09:18,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 20:09:18,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 20:09:18,643 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 20:09:18,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:09:18,645 INFO L82 PathProgramCache]: Analyzing trace with hash -1679344202, now seen corresponding path program 1 times [2019-11-15 20:09:18,645 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:09:18,645 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521417244] [2019-11-15 20:09:18,645 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:09:18,646 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:09:18,646 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:09:18,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:09:18,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 20:09:18,694 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521417244] [2019-11-15 20:09:18,694 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 20:09:18,695 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-15 20:09:18,695 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596700205] [2019-11-15 20:09:18,699 INFO L808 eck$LassoCheckResult]: loop already infeasible [2019-11-15 20:09:18,700 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 20:09:18,710 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-15 20:09:18,711 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-15 20:09:18,713 INFO L87 Difference]: Start difference. First operand 108 states. Second operand 3 states. [2019-11-15 20:09:18,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 20:09:18,767 INFO L93 Difference]: Finished difference Result 108 states and 152 transitions. [2019-11-15 20:09:18,770 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-15 20:09:18,772 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 108 states and 152 transitions. [2019-11-15 20:09:18,780 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 67 [2019-11-15 20:09:18,792 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 108 states to 101 states and 144 transitions. [2019-11-15 20:09:18,796 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 101 [2019-11-15 20:09:18,799 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 101 [2019-11-15 20:09:18,800 INFO L73 IsDeterministic]: Start isDeterministic. Operand 101 states and 144 transitions. [2019-11-15 20:09:18,801 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-15 20:09:18,801 INFO L688 BuchiCegarLoop]: Abstraction has 101 states and 144 transitions. [2019-11-15 20:09:18,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states and 144 transitions. [2019-11-15 20:09:18,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2019-11-15 20:09:18,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2019-11-15 20:09:18,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 144 transitions. [2019-11-15 20:09:18,836 INFO L711 BuchiCegarLoop]: Abstraction has 101 states and 144 transitions. [2019-11-15 20:09:18,836 INFO L591 BuchiCegarLoop]: Abstraction has 101 states and 144 transitions. [2019-11-15 20:09:18,836 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-15 20:09:18,836 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 101 states and 144 transitions. [2019-11-15 20:09:18,839 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 67 [2019-11-15 20:09:18,839 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-15 20:09:18,839 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-15 20:09:18,840 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-15 20:09:18,840 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 20:09:18,840 INFO L791 eck$LassoCheckResult]: Stem: 312#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13);call #t~string3.base, #t~string3.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string3.base, #t~string3.offset, 1);call write~init~int(77, #t~string3.base, 1 + #t~string3.offset, 1);call write~init~int(101, #t~string3.base, 2 + #t~string3.offset, 1);call write~init~int(116, #t~string3.base, 3 + #t~string3.offset, 1);call write~init~int(104, #t~string3.base, 4 + #t~string3.offset, 1);call write~init~int(58, #t~string3.base, 5 + #t~string3.offset, 1);call write~init~int(0, #t~string3.base, 6 + #t~string3.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string5.base, #t~string5.offset, 1);call write~init~int(82, #t~string5.base, 1 + #t~string5.offset, 1);call write~init~int(73, #t~string5.base, 2 + #t~string5.offset, 1);call write~init~int(84, #t~string5.base, 3 + #t~string5.offset, 1);call write~init~int(0, #t~string5.base, 4 + #t~string5.offset, 1);call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string7.base, #t~string7.offset, 1);call write~init~int(75, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 2 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string9.base, #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 1 + #t~string9.offset, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(30);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(9);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(21);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(30);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(9);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(21);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(25);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(30);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(9);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(13);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string57.base, #t~string57.offset, 1);call write~init~int(110, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 2 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string59.base, #t~string59.offset, 1);call write~init~int(102, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(102, #t~string59.base, 2 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 3 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string61.base, #t~string61.offset, 1);call write~init~int(80, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(117, #t~string61.base, 2 + #t~string61.offset, 1);call write~init~int(109, #t~string61.base, 3 + #t~string61.offset, 1);call write~init~int(112, #t~string61.base, 4 + #t~string61.offset, 1);call write~init~int(58, #t~string61.base, 5 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 6 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(110, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 2 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 3 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string67.base, #t~string67.offset, 1);call write~init~int(32, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 2 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string69.base, #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 1 + #t~string69.offset, 1); 254#L-1 havoc main_#res;havoc main_#t~ret10, main_~retValue_acc~3, main_~tmp~0;havoc main_~retValue_acc~3;havoc main_~tmp~0; 228#L910 havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 229#L918 main_#t~ret10 := valid_product_#res;main_~tmp~0 := main_#t~ret10;havoc main_#t~ret10; 270#L224 assume 0 != main_~tmp~0; 230#L197 havoc test_#t~nondet46, test_#t~nondet47, test_#t~nondet48, test_#t~nondet49, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 226#L938-1 [2019-11-15 20:09:18,841 INFO L793 eck$LassoCheckResult]: Loop: 226#L938-1 assume !false; 317#L616 assume test_~splverifierCounter~0 < 4; 302#L617 test_~tmp~4 := test_#t~nondet46;havoc test_#t~nondet46; 303#L625 assume !(0 != test_~tmp~4); 262#L625-1 test_~tmp___0~0 := test_#t~nondet47;havoc test_#t~nondet47; 311#L635 assume !(0 != test_~tmp___0~0); 314#L635-1 test_~tmp___2~0 := test_#t~nondet48;havoc test_#t~nondet48; 284#L645 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 285#L653-2 assume !(0 != ~pumpRunning~0); 296#L683 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret51, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 306#L741 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret50, processEnvironment__wrappee__methaneQuery_~tmp~5;havoc processEnvironment__wrappee__methaneQuery_~tmp~5; 307#L715-1 assume !(0 != ~pumpRunning~0); 291#L690 havoc __utac_acc__Specification3_spec__1_#t~ret72, __utac_acc__Specification3_spec__1_#t~ret73, __utac_acc__Specification3_spec__1_#t~ret74, __utac_acc__Specification3_spec__1_~tmp~9, __utac_acc__Specification3_spec__1_~tmp___0~2, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~9;havoc __utac_acc__Specification3_spec__1_~tmp___0~2;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 324#L90-1 __utac_acc__Specification3_spec__1_#t~ret72 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~9 := __utac_acc__Specification3_spec__1_#t~ret72;havoc __utac_acc__Specification3_spec__1_#t~ret72; 225#L932 assume 0 != __utac_acc__Specification3_spec__1_~tmp~9; 226#L938-1 [2019-11-15 20:09:18,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:09:18,841 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2019-11-15 20:09:18,841 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:09:18,841 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996655153] [2019-11-15 20:09:18,842 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:09:18,842 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:09:18,842 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:09:19,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 20:09:19,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 20:09:19,202 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 20:09:19,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:09:19,205 INFO L82 PathProgramCache]: Analyzing trace with hash -1091435480, now seen corresponding path program 1 times [2019-11-15 20:09:19,206 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:09:19,207 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927794266] [2019-11-15 20:09:19,207 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:09:19,207 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:09:19,208 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:09:19,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 20:09:19,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 20:09:19,221 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 20:09:19,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:09:19,222 INFO L82 PathProgramCache]: Analyzing trace with hash 1358149570, now seen corresponding path program 1 times [2019-11-15 20:09:19,222 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:09:19,222 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602958526] [2019-11-15 20:09:19,223 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:09:19,226 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:09:19,227 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:09:19,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:09:19,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 20:09:19,333 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602958526] [2019-11-15 20:09:19,333 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 20:09:19,334 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-15 20:09:19,334 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085691293] [2019-11-15 20:09:19,455 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 20:09:19,456 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-15 20:09:19,456 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-15 20:09:19,456 INFO L87 Difference]: Start difference. First operand 101 states and 144 transitions. cyclomatic complexity: 45 Second operand 5 states. [2019-11-15 20:09:19,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 20:09:19,676 INFO L93 Difference]: Finished difference Result 355 states and 516 transitions. [2019-11-15 20:09:19,678 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-15 20:09:19,678 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 355 states and 516 transitions. [2019-11-15 20:09:19,688 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 241 [2019-11-15 20:09:19,693 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 355 states to 355 states and 516 transitions. [2019-11-15 20:09:19,695 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 355 [2019-11-15 20:09:19,697 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 355 [2019-11-15 20:09:19,698 INFO L73 IsDeterministic]: Start isDeterministic. Operand 355 states and 516 transitions. [2019-11-15 20:09:19,704 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-15 20:09:19,705 INFO L688 BuchiCegarLoop]: Abstraction has 355 states and 516 transitions. [2019-11-15 20:09:19,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states and 516 transitions. [2019-11-15 20:09:19,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 196. [2019-11-15 20:09:19,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 196 states. [2019-11-15 20:09:19,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 278 transitions. [2019-11-15 20:09:19,725 INFO L711 BuchiCegarLoop]: Abstraction has 196 states and 278 transitions. [2019-11-15 20:09:19,726 INFO L591 BuchiCegarLoop]: Abstraction has 196 states and 278 transitions. [2019-11-15 20:09:19,726 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-15 20:09:19,726 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 196 states and 278 transitions. [2019-11-15 20:09:19,728 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 134 [2019-11-15 20:09:19,730 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-15 20:09:19,730 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-15 20:09:19,731 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-15 20:09:19,731 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 20:09:19,732 INFO L791 eck$LassoCheckResult]: Stem: 792#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13);call #t~string3.base, #t~string3.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string3.base, #t~string3.offset, 1);call write~init~int(77, #t~string3.base, 1 + #t~string3.offset, 1);call write~init~int(101, #t~string3.base, 2 + #t~string3.offset, 1);call write~init~int(116, #t~string3.base, 3 + #t~string3.offset, 1);call write~init~int(104, #t~string3.base, 4 + #t~string3.offset, 1);call write~init~int(58, #t~string3.base, 5 + #t~string3.offset, 1);call write~init~int(0, #t~string3.base, 6 + #t~string3.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string5.base, #t~string5.offset, 1);call write~init~int(82, #t~string5.base, 1 + #t~string5.offset, 1);call write~init~int(73, #t~string5.base, 2 + #t~string5.offset, 1);call write~init~int(84, #t~string5.base, 3 + #t~string5.offset, 1);call write~init~int(0, #t~string5.base, 4 + #t~string5.offset, 1);call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string7.base, #t~string7.offset, 1);call write~init~int(75, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 2 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string9.base, #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 1 + #t~string9.offset, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(30);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(9);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(21);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(30);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(9);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(21);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(25);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(30);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(9);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(13);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string57.base, #t~string57.offset, 1);call write~init~int(110, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 2 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string59.base, #t~string59.offset, 1);call write~init~int(102, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(102, #t~string59.base, 2 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 3 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string61.base, #t~string61.offset, 1);call write~init~int(80, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(117, #t~string61.base, 2 + #t~string61.offset, 1);call write~init~int(109, #t~string61.base, 3 + #t~string61.offset, 1);call write~init~int(112, #t~string61.base, 4 + #t~string61.offset, 1);call write~init~int(58, #t~string61.base, 5 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 6 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(110, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 2 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 3 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string67.base, #t~string67.offset, 1);call write~init~int(32, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 2 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string69.base, #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 1 + #t~string69.offset, 1); 730#L-1 havoc main_#res;havoc main_#t~ret10, main_~retValue_acc~3, main_~tmp~0;havoc main_~retValue_acc~3;havoc main_~tmp~0; 704#L910 havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 705#L918 main_#t~ret10 := valid_product_#res;main_~tmp~0 := main_#t~ret10;havoc main_#t~ret10; 744#L224 assume 0 != main_~tmp~0; 706#L197 havoc test_#t~nondet46, test_#t~nondet47, test_#t~nondet48, test_#t~nondet49, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 707#L938-1 [2019-11-15 20:09:19,732 INFO L793 eck$LassoCheckResult]: Loop: 707#L938-1 assume !false; 798#L616 assume test_~splverifierCounter~0 < 4; 782#L617 test_~tmp~4 := test_#t~nondet46;havoc test_#t~nondet46; 783#L625 assume !(0 != test_~tmp~4); 738#L625-1 test_~tmp___0~0 := test_#t~nondet47;havoc test_#t~nondet47; 791#L635 assume !(0 != test_~tmp___0~0); 821#L635-1 test_~tmp___2~0 := test_#t~nondet48;havoc test_#t~nondet48; 760#L645 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 761#L653-2 assume !(0 != ~pumpRunning~0); 775#L683 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret51, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 786#L741 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret50, processEnvironment__wrappee__methaneQuery_~tmp~5;havoc processEnvironment__wrappee__methaneQuery_~tmp~5; 787#L715-1 assume !(0 != ~pumpRunning~0); 767#L690 havoc __utac_acc__Specification3_spec__1_#t~ret72, __utac_acc__Specification3_spec__1_#t~ret73, __utac_acc__Specification3_spec__1_#t~ret74, __utac_acc__Specification3_spec__1_~tmp~9, __utac_acc__Specification3_spec__1_~tmp___0~2, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~9;havoc __utac_acc__Specification3_spec__1_~tmp___0~2;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 822#L90-1 __utac_acc__Specification3_spec__1_#t~ret72 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~9 := __utac_acc__Specification3_spec__1_#t~ret72;havoc __utac_acc__Specification3_spec__1_#t~ret72; 823#L932 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~9);havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~1;havoc getWaterLevel_~retValue_acc~1;getWaterLevel_~retValue_acc~1 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~1; 749#L122 __utac_acc__Specification3_spec__1_#t~ret73 := getWaterLevel_#res;__utac_acc__Specification3_spec__1_~tmp___0~2 := __utac_acc__Specification3_spec__1_#t~ret73;havoc __utac_acc__Specification3_spec__1_#t~ret73; 750#L938 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~2); 707#L938-1 [2019-11-15 20:09:19,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:09:19,733 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2019-11-15 20:09:19,733 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:09:19,733 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224045655] [2019-11-15 20:09:19,734 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:09:19,734 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:09:19,734 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:09:19,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 20:09:19,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 20:09:20,013 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 20:09:20,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:09:20,014 INFO L82 PathProgramCache]: Analyzing trace with hash -897468678, now seen corresponding path program 1 times [2019-11-15 20:09:20,015 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:09:20,015 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584407579] [2019-11-15 20:09:20,015 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:09:20,015 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:09:20,015 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:09:20,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 20:09:20,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 20:09:20,050 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 20:09:20,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:09:20,051 INFO L82 PathProgramCache]: Analyzing trace with hash -488313836, now seen corresponding path program 1 times [2019-11-15 20:09:20,051 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:09:20,052 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978056668] [2019-11-15 20:09:20,052 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:09:20,052 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:09:20,052 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:09:20,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 20:09:20,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 20:09:20,244 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 20:09:40,814 WARN L191 SmtUtils]: Spent 20.43 s on a formula simplification. DAG size of input: 451 DAG size of output: 449 [2019-11-15 20:09:53,239 WARN L191 SmtUtils]: Spent 12.42 s on a formula simplification that was a NOOP. DAG size: 449 [2019-11-15 20:09:53,316 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 15.11 08:09:53 BoogieIcfgContainer [2019-11-15 20:09:53,317 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-15 20:09:53,318 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 20:09:53,319 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 20:09:53,319 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 20:09:53,319 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 08:09:17" (3/4) ... [2019-11-15 20:09:53,324 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-11-15 20:09:53,384 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_d9fe12a3-4b36-42af-b412-4763d8c26ae3/bin/uautomizer/witness.graphml [2019-11-15 20:09:53,384 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 20:09:53,386 INFO L168 Benchmark]: Toolchain (without parser) took 37126.35 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 277.9 MB). Free memory was 939.4 MB in the beginning and 943.6 MB in the end (delta: -4.2 MB). Peak memory consumption was 273.6 MB. Max. memory is 11.5 GB. [2019-11-15 20:09:53,386 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 20:09:53,387 INFO L168 Benchmark]: CACSL2BoogieTranslator took 603.00 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 109.6 MB). Free memory was 939.4 MB in the beginning and 1.1 GB in the end (delta: -144.4 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. [2019-11-15 20:09:53,387 INFO L168 Benchmark]: Boogie Procedure Inliner took 68.27 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: 8.9 MB). Peak memory consumption was 8.9 MB. Max. memory is 11.5 GB. [2019-11-15 20:09:53,387 INFO L168 Benchmark]: Boogie Preprocessor took 54.18 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. [2019-11-15 20:09:53,388 INFO L168 Benchmark]: RCFGBuilder took 777.49 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: 65.5 MB). Peak memory consumption was 65.5 MB. Max. memory is 11.5 GB. [2019-11-15 20:09:53,389 INFO L168 Benchmark]: BuchiAutomizer took 35553.77 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 168.3 MB). Free memory was 1.0 GB in the beginning and 957.7 MB in the end (delta: 51.6 MB). Peak memory consumption was 399.4 MB. Max. memory is 11.5 GB. [2019-11-15 20:09:53,389 INFO L168 Benchmark]: Witness Printer took 66.00 ms. Allocated memory is still 1.3 GB. Free memory was 957.7 MB in the beginning and 943.6 MB in the end (delta: 14.1 MB). Peak memory consumption was 14.1 MB. Max. memory is 11.5 GB. [2019-11-15 20:09:53,391 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 603.00 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 109.6 MB). Free memory was 939.4 MB in the beginning and 1.1 GB in the end (delta: -144.4 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 68.27 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: 8.9 MB). Peak memory consumption was 8.9 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 54.18 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 777.49 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: 65.5 MB). Peak memory consumption was 65.5 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 35553.77 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 168.3 MB). Free memory was 1.0 GB in the beginning and 957.7 MB in the end (delta: 51.6 MB). Peak memory consumption was 399.4 MB. Max. memory is 11.5 GB. * Witness Printer took 66.00 ms. Allocated memory is still 1.3 GB. Free memory was 957.7 MB in the beginning and 943.6 MB in the end (delta: 14.1 MB). Peak memory consumption was 14.1 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 196 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 35.4s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 34.9s. Construction of modules took 0.1s. 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, 159 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 196 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 349 SDtfs, 686 SDslu, 604 SDs, 0 SdLazy, 82 SolverSat, 24 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s 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: 615]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=5227} State at position 1 is {NULL=0, retValue_acc=0, NULL=-9, NULL=-20, NULL=0, NULL=5227, NULL=0, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@738525=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1c02985b=54, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7284541f=0, NULL=-23, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7a1778bd=0, NULL=0, NULL=-11, NULL=-10, NULL=0, NULL=0, methaneLevelCritical=0, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5c950a3d=0, NULL=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1274bfd9=0, NULL=0, NULL=-5, NULL=-4, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@fca719c=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4f8b8911=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6c547d94=0, NULL=0, tmp___1=0, NULL=-18, NULL=-8, cleanupTimeShifts=4, NULL=-12, NULL=-16, NULL=-7, tmp=0, tmp___0=1, NULL=0, NULL=0, systemActive=1, waterLevel=1, NULL=-21, \result=1, NULL=0, NULL=0, NULL=0, tmp___0=0, NULL=0, NULL=0, \result=1, retValue_acc=1, head=0, pumpRunning=0, tmp=1, NULL=5226, \result=0, NULL=0, NULL=0, NULL=-15, NULL=-13, NULL=-24, tmp___2=54, NULL=-22, splverifierCounter=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@33c6ef07=0, NULL=-19, NULL=-1, tmp___1=0, head=0, tmp=0, NULL=-2, NULL=0, NULL=-17, NULL=0, NULL=-6, NULL=-3, NULL=-14, tmp=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L47] int waterLevel = 1; [L48] int methaneLevelCritical = 0; [L136] int cleanupTimeShifts = 4; [L407] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L675] int pumpRunning = 0; [L676] int systemActive = 1; [L215] int retValue_acc ; [L216] int tmp ; [L914] int retValue_acc ; [L917] retValue_acc = 1 [L918] return (retValue_acc); [L222] tmp = valid_product() [L224] COND TRUE \read(tmp) [L606] int splverifierCounter ; [L607] int tmp ; [L608] int tmp___0 ; [L609] int tmp___1 ; [L610] int tmp___2 ; [L613] splverifierCounter = 0 Loop: [L615] COND TRUE 1 [L617] COND TRUE splverifierCounter < 4 [L623] tmp = __VERIFIER_nondet_int() [L625] COND FALSE !(\read(tmp)) [L633] tmp___0 = __VERIFIER_nondet_int() [L635] COND FALSE !(\read(tmp___0)) [L643] tmp___2 = __VERIFIER_nondet_int() [L645] COND TRUE \read(tmp___2) [L874] systemActive = 1 [L683] COND FALSE !(\read(pumpRunning)) [L690] COND TRUE \read(systemActive) [L738] int tmp ; [L741] COND FALSE !(\read(pumpRunning)) [L712] int tmp ; [L715] COND FALSE !(\read(pumpRunning)) [L924] int tmp ; [L925] int tmp___0 ; [L926] int tmp___1 ; [L86] int retValue_acc ; [L89] retValue_acc = methaneLevelCritical [L90] return (retValue_acc); [L930] tmp = isMethaneLevelCritical() [L932] COND FALSE !(\read(tmp)) [L118] int retValue_acc ; [L121] retValue_acc = waterLevel [L122] return (retValue_acc); [L936] tmp___0 = getWaterLevel() [L938] COND FALSE !(tmp___0 == 2) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...