./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product37.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_487ac012-d28d-41aa-ad86-0a2e2cb8a322/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_487ac012-d28d-41aa-ad86-0a2e2cb8a322/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_487ac012-d28d-41aa-ad86-0a2e2cb8a322/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_487ac012-d28d-41aa-ad86-0a2e2cb8a322/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product37.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_487ac012-d28d-41aa-ad86-0a2e2cb8a322/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_487ac012-d28d-41aa-ad86-0a2e2cb8a322/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 6a5b3ee1add5adeacf75c411f0af51a190ac6f33 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 18:05:50,377 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 18:05:50,378 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 18:05:50,386 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 18:05:50,386 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 18:05:50,387 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 18:05:50,387 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 18:05:50,389 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 18:05:50,390 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 18:05:50,391 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 18:05:50,391 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 18:05:50,392 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 18:05:50,392 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 18:05:50,393 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 18:05:50,393 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 18:05:50,394 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 18:05:50,395 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 18:05:50,395 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 18:05:50,397 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 18:05:50,398 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 18:05:50,400 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 18:05:50,400 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 18:05:50,401 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 18:05:50,401 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 18:05:50,403 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 18:05:50,403 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 18:05:50,404 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 18:05:50,404 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 18:05:50,404 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 18:05:50,405 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 18:05:50,405 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 18:05:50,405 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 18:05:50,406 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 18:05:50,406 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 18:05:50,407 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 18:05:50,407 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 18:05:50,407 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 18:05:50,408 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 18:05:50,408 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 18:05:50,408 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 18:05:50,409 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 18:05:50,409 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_487ac012-d28d-41aa-ad86-0a2e2cb8a322/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-12-07 18:05:50,421 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 18:05:50,421 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 18:05:50,422 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 18:05:50,422 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 18:05:50,422 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 18:05:50,422 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-12-07 18:05:50,422 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-12-07 18:05:50,423 INFO L138 SettingsManager]: * Use old map elimination=false [2019-12-07 18:05:50,423 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-12-07 18:05:50,423 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-12-07 18:05:50,423 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-12-07 18:05:50,423 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 18:05:50,423 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 18:05:50,423 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 18:05:50,423 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 18:05:50,424 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 18:05:50,424 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 18:05:50,424 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-12-07 18:05:50,424 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-12-07 18:05:50,424 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-12-07 18:05:50,424 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 18:05:50,424 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 18:05:50,424 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-12-07 18:05:50,424 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 18:05:50,425 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-12-07 18:05:50,425 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 18:05:50,425 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 18:05:50,425 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-12-07 18:05:50,425 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 18:05:50,425 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 18:05:50,425 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 18:05:50,425 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-12-07 18:05:50,426 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-12-07 18:05:50,426 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_487ac012-d28d-41aa-ad86-0a2e2cb8a322/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 -> 6a5b3ee1add5adeacf75c411f0af51a190ac6f33 [2019-12-07 18:05:50,525 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 18:05:50,535 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 18:05:50,537 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 18:05:50,539 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 18:05:50,539 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 18:05:50,539 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_487ac012-d28d-41aa-ad86-0a2e2cb8a322/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec5_product37.cil.c [2019-12-07 18:05:50,581 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_487ac012-d28d-41aa-ad86-0a2e2cb8a322/bin/uautomizer/data/2d2eeb1e9/7defdd73dba24ddfb376574b06b60f24/FLAG657fa7d2e [2019-12-07 18:05:51,033 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 18:05:51,034 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_487ac012-d28d-41aa-ad86-0a2e2cb8a322/sv-benchmarks/c/product-lines/minepump_spec5_product37.cil.c [2019-12-07 18:05:51,043 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_487ac012-d28d-41aa-ad86-0a2e2cb8a322/bin/uautomizer/data/2d2eeb1e9/7defdd73dba24ddfb376574b06b60f24/FLAG657fa7d2e [2019-12-07 18:05:51,052 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_487ac012-d28d-41aa-ad86-0a2e2cb8a322/bin/uautomizer/data/2d2eeb1e9/7defdd73dba24ddfb376574b06b60f24 [2019-12-07 18:05:51,054 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 18:05:51,054 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 18:05:51,055 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 18:05:51,055 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 18:05:51,058 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 18:05:51,058 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 06:05:51" (1/1) ... [2019-12-07 18:05:51,060 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c28c768 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:05:51, skipping insertion in model container [2019-12-07 18:05:51,060 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 06:05:51" (1/1) ... [2019-12-07 18:05:51,065 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 18:05:51,094 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 18:05:51,303 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 18:05:51,311 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 18:05:51,357 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 18:05:51,379 INFO L208 MainTranslator]: Completed translation [2019-12-07 18:05:51,379 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:05:51 WrapperNode [2019-12-07 18:05:51,379 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 18:05:51,380 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 18:05:51,380 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 18:05:51,380 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 18:05:51,385 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:05:51" (1/1) ... [2019-12-07 18:05:51,396 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:05:51" (1/1) ... [2019-12-07 18:05:51,422 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 18:05:51,423 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 18:05:51,423 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 18:05:51,423 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 18:05:51,429 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:05:51" (1/1) ... [2019-12-07 18:05:51,429 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:05:51" (1/1) ... [2019-12-07 18:05:51,432 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:05:51" (1/1) ... [2019-12-07 18:05:51,433 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:05:51" (1/1) ... [2019-12-07 18:05:51,441 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:05:51" (1/1) ... [2019-12-07 18:05:51,447 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:05:51" (1/1) ... [2019-12-07 18:05:51,449 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:05:51" (1/1) ... [2019-12-07 18:05:51,452 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 18:05:51,452 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 18:05:51,452 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 18:05:51,452 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 18:05:51,453 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:05:51" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_487ac012-d28d-41aa-ad86-0a2e2cb8a322/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:05:51,493 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 18:05:51,493 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-12-07 18:05:51,493 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 18:05:51,493 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 18:05:51,902 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 18:05:51,902 INFO L287 CfgBuilder]: Removed 170 assume(true) statements. [2019-12-07 18:05:51,903 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:05:51 BoogieIcfgContainer [2019-12-07 18:05:51,904 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 18:05:51,904 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-12-07 18:05:51,904 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-12-07 18:05:51,906 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-12-07 18:05:51,907 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 18:05:51,907 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 07.12 06:05:51" (1/3) ... [2019-12-07 18:05:51,908 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4db905d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 06:05:51, skipping insertion in model container [2019-12-07 18:05:51,908 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 18:05:51,908 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:05:51" (2/3) ... [2019-12-07 18:05:51,908 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4db905d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 06:05:51, skipping insertion in model container [2019-12-07 18:05:51,908 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 18:05:51,908 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:05:51" (3/3) ... [2019-12-07 18:05:51,910 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product37.cil.c [2019-12-07 18:05:51,938 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-12-07 18:05:51,938 INFO L357 BuchiCegarLoop]: Hoare is false [2019-12-07 18:05:51,938 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-12-07 18:05:51,938 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 18:05:51,938 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 18:05:51,939 INFO L361 BuchiCegarLoop]: Difference is false [2019-12-07 18:05:51,939 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 18:05:51,939 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-12-07 18:05:51,950 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 117 states. [2019-12-07 18:05:51,969 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 75 [2019-12-07 18:05:51,970 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 18:05:51,970 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 18:05:51,975 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:05:51,975 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:05:51,975 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-12-07 18:05:51,976 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 117 states. [2019-12-07 18:05:51,980 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 75 [2019-12-07 18:05:51,980 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 18:05:51,980 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 18:05:51,981 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:05:51,981 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:05:51,985 INFO L794 eck$LassoCheckResult]: Stem: 86#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13);call #t~string3.base, #t~string3.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string3.base, #t~string3.offset, 1);call write~init~int(77, #t~string3.base, 1 + #t~string3.offset, 1);call write~init~int(101, #t~string3.base, 2 + #t~string3.offset, 1);call write~init~int(116, #t~string3.base, 3 + #t~string3.offset, 1);call write~init~int(104, #t~string3.base, 4 + #t~string3.offset, 1);call write~init~int(58, #t~string3.base, 5 + #t~string3.offset, 1);call write~init~int(0, #t~string3.base, 6 + #t~string3.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string5.base, #t~string5.offset, 1);call write~init~int(82, #t~string5.base, 1 + #t~string5.offset, 1);call write~init~int(73, #t~string5.base, 2 + #t~string5.offset, 1);call write~init~int(84, #t~string5.base, 3 + #t~string5.offset, 1);call write~init~int(0, #t~string5.base, 4 + #t~string5.offset, 1);call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string7.base, #t~string7.offset, 1);call write~init~int(75, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 2 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string9.base, #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 1 + #t~string9.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(13);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(110, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 2 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 2 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 3 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string24.base, #t~string24.offset, 1);call write~init~int(80, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(117, #t~string24.base, 2 + #t~string24.offset, 1);call write~init~int(109, #t~string24.base, 3 + #t~string24.offset, 1);call write~init~int(112, #t~string24.base, 4 + #t~string24.offset, 1);call write~init~int(58, #t~string24.base, 5 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 6 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string26.base, #t~string26.offset, 1);call write~init~int(110, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 2 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string28.base, #t~string28.offset, 1);call write~init~int(102, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(102, #t~string28.base, 2 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 3 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string30.base, #t~string30.offset, 1);call write~init~int(32, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 2 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string32.base, #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 1 + #t~string32.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(30);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(9);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(21);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(30);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(9);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(21);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(30);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(9);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(25);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(30);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(9);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 7#L-1true havoc main_#res;havoc main_#t~ret13, main_~retValue_acc~3, main_~tmp~1;havoc main_~retValue_acc~3;havoc main_~tmp~1; 9#L574true havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 18#L582true main_#t~ret13 := valid_product_#res;main_~tmp~1 := main_#t~ret13;havoc main_#t~ret13; 78#L281true assume 0 != main_~tmp~1; 82#L253true ~switchedOnBeforeTS~0 := 0; 69#L149true havoc test_#t~nondet34, test_#t~nondet35, test_#t~nondet36, test_#t~nondet37, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 107#L170-1true [2019-12-07 18:05:51,985 INFO L796 eck$LassoCheckResult]: Loop: 107#L170-1true assume !false; 88#L498true assume test_~splverifierCounter~0 < 4; 33#L499true test_~tmp~5 := test_#t~nondet34;havoc test_#t~nondet34; 52#L507true assume !(0 != test_~tmp~5); 54#L507-1true test_~tmp___0~2 := test_#t~nondet35;havoc test_#t~nondet35; 111#L517true assume !(0 != test_~tmp___0~2); 94#L517-1true test_~tmp___2~0 := test_#t~nondet36;havoc test_#t~nondet36; 22#L527true assume 0 != test_~tmp___2~0; 117#L533-2true havoc __utac_acc__Specification5_spec__2_#t~ret10;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~5;havoc isPumpRunning_~retValue_acc~5;isPumpRunning_~retValue_acc~5 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~5; 62#L427true __utac_acc__Specification5_spec__2_#t~ret10 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret10;havoc __utac_acc__Specification5_spec__2_#t~ret10; 115#L159true assume !(0 != ~pumpRunning~0); 109#L316true assume !(0 != ~systemActive~0); 26#L323true havoc __utac_acc__Specification5_spec__3_#t~ret11, __utac_acc__Specification5_spec__3_#t~ret12, __utac_acc__Specification5_spec__3_~tmp~0, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~0;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~1;havoc getWaterLevel_~retValue_acc~1;getWaterLevel_~retValue_acc~1 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~1; 25#L122true __utac_acc__Specification5_spec__3_#t~ret11 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~0 := __utac_acc__Specification5_spec__3_#t~ret11;havoc __utac_acc__Specification5_spec__3_#t~ret11; 116#L170true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0); 107#L170-1true [2019-12-07 18:05:51,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:05:51,989 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2019-12-07 18:05:51,995 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:05:51,996 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539972538] [2019-12-07 18:05:51,996 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:05:52,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:05:52,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:05:52,189 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:05:52,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:05:52,190 INFO L82 PathProgramCache]: Analyzing trace with hash 95890028, now seen corresponding path program 1 times [2019-12-07 18:05:52,190 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:05:52,191 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352630901] [2019-12-07 18:05:52,191 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:05:52,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:05:52,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:05:52,201 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:05:52,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:05:52,203 INFO L82 PathProgramCache]: Analyzing trace with hash 2029915238, now seen corresponding path program 1 times [2019-12-07 18:05:52,203 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:05:52,203 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209990056] [2019-12-07 18:05:52,203 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:05:52,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:05:52,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:05:52,287 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [209990056] [2019-12-07 18:05:52,287 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:05:52,288 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-07 18:05:52,288 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730473284] [2019-12-07 18:05:52,350 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:05:52,360 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 18:05:52,361 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-12-07 18:05:52,362 INFO L87 Difference]: Start difference. First operand 117 states. Second operand 6 states. [2019-12-07 18:05:52,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:05:52,451 INFO L93 Difference]: Finished difference Result 117 states and 166 transitions. [2019-12-07 18:05:52,452 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 18:05:52,453 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 117 states and 166 transitions. [2019-12-07 18:05:52,456 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 73 [2019-12-07 18:05:52,460 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 117 states to 110 states and 159 transitions. [2019-12-07 18:05:52,461 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 110 [2019-12-07 18:05:52,462 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 110 [2019-12-07 18:05:52,462 INFO L73 IsDeterministic]: Start isDeterministic. Operand 110 states and 159 transitions. [2019-12-07 18:05:52,463 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 18:05:52,463 INFO L688 BuchiCegarLoop]: Abstraction has 110 states and 159 transitions. [2019-12-07 18:05:52,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states and 159 transitions. [2019-12-07 18:05:52,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110. [2019-12-07 18:05:52,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2019-12-07 18:05:52,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 159 transitions. [2019-12-07 18:05:52,486 INFO L711 BuchiCegarLoop]: Abstraction has 110 states and 159 transitions. [2019-12-07 18:05:52,486 INFO L591 BuchiCegarLoop]: Abstraction has 110 states and 159 transitions. [2019-12-07 18:05:52,486 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-12-07 18:05:52,487 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 110 states and 159 transitions. [2019-12-07 18:05:52,488 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 73 [2019-12-07 18:05:52,488 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 18:05:52,488 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 18:05:52,489 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:05:52,489 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:05:52,489 INFO L794 eck$LassoCheckResult]: Stem: 350#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13);call #t~string3.base, #t~string3.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string3.base, #t~string3.offset, 1);call write~init~int(77, #t~string3.base, 1 + #t~string3.offset, 1);call write~init~int(101, #t~string3.base, 2 + #t~string3.offset, 1);call write~init~int(116, #t~string3.base, 3 + #t~string3.offset, 1);call write~init~int(104, #t~string3.base, 4 + #t~string3.offset, 1);call write~init~int(58, #t~string3.base, 5 + #t~string3.offset, 1);call write~init~int(0, #t~string3.base, 6 + #t~string3.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string5.base, #t~string5.offset, 1);call write~init~int(82, #t~string5.base, 1 + #t~string5.offset, 1);call write~init~int(73, #t~string5.base, 2 + #t~string5.offset, 1);call write~init~int(84, #t~string5.base, 3 + #t~string5.offset, 1);call write~init~int(0, #t~string5.base, 4 + #t~string5.offset, 1);call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string7.base, #t~string7.offset, 1);call write~init~int(75, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 2 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string9.base, #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 1 + #t~string9.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(13);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(110, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 2 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 2 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 3 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string24.base, #t~string24.offset, 1);call write~init~int(80, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(117, #t~string24.base, 2 + #t~string24.offset, 1);call write~init~int(109, #t~string24.base, 3 + #t~string24.offset, 1);call write~init~int(112, #t~string24.base, 4 + #t~string24.offset, 1);call write~init~int(58, #t~string24.base, 5 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 6 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string26.base, #t~string26.offset, 1);call write~init~int(110, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 2 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string28.base, #t~string28.offset, 1);call write~init~int(102, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(102, #t~string28.base, 2 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 3 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string30.base, #t~string30.offset, 1);call write~init~int(32, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 2 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string32.base, #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 1 + #t~string32.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(30);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(9);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(21);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(30);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(9);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(21);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(30);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(9);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(25);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(30);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(9);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 259#L-1 havoc main_#res;havoc main_#t~ret13, main_~retValue_acc~3, main_~tmp~1;havoc main_~retValue_acc~3;havoc main_~tmp~1; 260#L574 havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 261#L582 main_#t~ret13 := valid_product_#res;main_~tmp~1 := main_#t~ret13;havoc main_#t~ret13; 279#L281 assume 0 != main_~tmp~1; 346#L253 ~switchedOnBeforeTS~0 := 0; 342#L149 havoc test_#t~nondet34, test_#t~nondet35, test_#t~nondet36, test_#t~nondet37, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 255#L170-1 [2019-12-07 18:05:52,489 INFO L796 eck$LassoCheckResult]: Loop: 255#L170-1 assume !false; 351#L498 assume test_~splverifierCounter~0 < 4; 298#L499 test_~tmp~5 := test_#t~nondet34;havoc test_#t~nondet34; 299#L507 assume !(0 != test_~tmp~5); 265#L507-1 test_~tmp___0~2 := test_#t~nondet35;havoc test_#t~nondet35; 322#L517 assume !(0 != test_~tmp___0~2); 354#L517-1 test_~tmp___2~0 := test_#t~nondet36;havoc test_#t~nondet36; 285#L527 assume 0 != test_~tmp___2~0; 258#L533-2 havoc __utac_acc__Specification5_spec__2_#t~ret10;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~5;havoc isPumpRunning_~retValue_acc~5;isPumpRunning_~retValue_acc~5 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~5; 333#L427 __utac_acc__Specification5_spec__2_#t~ret10 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret10;havoc __utac_acc__Specification5_spec__2_#t~ret10; 334#L159 assume !(0 != ~pumpRunning~0); 309#L316 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret15, processEnvironment_~tmp~3;havoc processEnvironment_~tmp~3; 357#L374 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret14, processEnvironment__wrappee__highWaterSensor_~tmp~2;havoc processEnvironment__wrappee__highWaterSensor_~tmp~2; 281#L348-1 assume !(0 == ~pumpRunning~0); 277#L323 havoc __utac_acc__Specification5_spec__3_#t~ret11, __utac_acc__Specification5_spec__3_#t~ret12, __utac_acc__Specification5_spec__3_~tmp~0, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~0;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~1;havoc getWaterLevel_~retValue_acc~1;getWaterLevel_~retValue_acc~1 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~1; 289#L122 __utac_acc__Specification5_spec__3_#t~ret11 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~0 := __utac_acc__Specification5_spec__3_#t~ret11;havoc __utac_acc__Specification5_spec__3_#t~ret11; 290#L170 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0); 255#L170-1 [2019-12-07 18:05:52,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:05:52,489 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2019-12-07 18:05:52,490 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:05:52,490 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531444869] [2019-12-07 18:05:52,490 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:05:52,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:05:52,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:05:52,544 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:05:52,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:05:52,544 INFO L82 PathProgramCache]: Analyzing trace with hash -484283837, now seen corresponding path program 1 times [2019-12-07 18:05:52,545 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:05:52,545 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947408654] [2019-12-07 18:05:52,545 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:05:52,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:05:52,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:05:52,553 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [947408654] [2019-12-07 18:05:52,553 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:05:52,553 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 18:05:52,553 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450221237] [2019-12-07 18:05:52,553 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-12-07 18:05:52,554 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:05:52,554 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 18:05:52,554 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 18:05:52,554 INFO L87 Difference]: Start difference. First operand 110 states and 159 transitions. cyclomatic complexity: 51 Second operand 3 states. [2019-12-07 18:05:52,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:05:52,620 INFO L93 Difference]: Finished difference Result 159 states and 218 transitions. [2019-12-07 18:05:52,620 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 18:05:52,621 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 159 states and 218 transitions. [2019-12-07 18:05:52,623 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 110 [2019-12-07 18:05:52,624 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 159 states to 159 states and 218 transitions. [2019-12-07 18:05:52,625 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 159 [2019-12-07 18:05:52,625 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 159 [2019-12-07 18:05:52,625 INFO L73 IsDeterministic]: Start isDeterministic. Operand 159 states and 218 transitions. [2019-12-07 18:05:52,626 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 18:05:52,626 INFO L688 BuchiCegarLoop]: Abstraction has 159 states and 218 transitions. [2019-12-07 18:05:52,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states and 218 transitions. [2019-12-07 18:05:52,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 159. [2019-12-07 18:05:52,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 159 states. [2019-12-07 18:05:52,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 218 transitions. [2019-12-07 18:05:52,634 INFO L711 BuchiCegarLoop]: Abstraction has 159 states and 218 transitions. [2019-12-07 18:05:52,634 INFO L591 BuchiCegarLoop]: Abstraction has 159 states and 218 transitions. [2019-12-07 18:05:52,634 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-12-07 18:05:52,634 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 159 states and 218 transitions. [2019-12-07 18:05:52,635 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 110 [2019-12-07 18:05:52,636 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 18:05:52,636 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 18:05:52,636 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:05:52,636 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:05:52,637 INFO L794 eck$LassoCheckResult]: Stem: 630#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13);call #t~string3.base, #t~string3.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string3.base, #t~string3.offset, 1);call write~init~int(77, #t~string3.base, 1 + #t~string3.offset, 1);call write~init~int(101, #t~string3.base, 2 + #t~string3.offset, 1);call write~init~int(116, #t~string3.base, 3 + #t~string3.offset, 1);call write~init~int(104, #t~string3.base, 4 + #t~string3.offset, 1);call write~init~int(58, #t~string3.base, 5 + #t~string3.offset, 1);call write~init~int(0, #t~string3.base, 6 + #t~string3.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string5.base, #t~string5.offset, 1);call write~init~int(82, #t~string5.base, 1 + #t~string5.offset, 1);call write~init~int(73, #t~string5.base, 2 + #t~string5.offset, 1);call write~init~int(84, #t~string5.base, 3 + #t~string5.offset, 1);call write~init~int(0, #t~string5.base, 4 + #t~string5.offset, 1);call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string7.base, #t~string7.offset, 1);call write~init~int(75, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 2 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string9.base, #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 1 + #t~string9.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(13);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(110, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 2 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 2 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 3 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string24.base, #t~string24.offset, 1);call write~init~int(80, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(117, #t~string24.base, 2 + #t~string24.offset, 1);call write~init~int(109, #t~string24.base, 3 + #t~string24.offset, 1);call write~init~int(112, #t~string24.base, 4 + #t~string24.offset, 1);call write~init~int(58, #t~string24.base, 5 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 6 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string26.base, #t~string26.offset, 1);call write~init~int(110, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 2 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string28.base, #t~string28.offset, 1);call write~init~int(102, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(102, #t~string28.base, 2 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 3 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string30.base, #t~string30.offset, 1);call write~init~int(32, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 2 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string32.base, #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 1 + #t~string32.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(30);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(9);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(21);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(30);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(9);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(21);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(30);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(9);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(25);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(30);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(9);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 534#L-1 havoc main_#res;havoc main_#t~ret13, main_~retValue_acc~3, main_~tmp~1;havoc main_~retValue_acc~3;havoc main_~tmp~1; 535#L574 havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 536#L582 main_#t~ret13 := valid_product_#res;main_~tmp~1 := main_#t~ret13;havoc main_#t~ret13; 553#L281 assume 0 != main_~tmp~1; 627#L253 ~switchedOnBeforeTS~0 := 0; 623#L149 havoc test_#t~nondet34, test_#t~nondet35, test_#t~nondet36, test_#t~nondet37, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 530#L170-1 [2019-12-07 18:05:52,637 INFO L796 eck$LassoCheckResult]: Loop: 530#L170-1 assume !false; 631#L498 assume test_~splverifierCounter~0 < 4; 576#L499 test_~tmp~5 := test_#t~nondet34;havoc test_#t~nondet34; 577#L507 assume !(0 != test_~tmp~5); 540#L507-1 test_~tmp___0~2 := test_#t~nondet35;havoc test_#t~nondet35; 603#L517 assume !(0 != test_~tmp___0~2); 634#L517-1 test_~tmp___2~0 := test_#t~nondet36;havoc test_#t~nondet36; 560#L527 assume 0 != test_~tmp___2~0; 533#L533-2 havoc __utac_acc__Specification5_spec__2_#t~ret10;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~5;havoc isPumpRunning_~retValue_acc~5;isPumpRunning_~retValue_acc~5 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~5; 614#L427 __utac_acc__Specification5_spec__2_#t~ret10 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret10;havoc __utac_acc__Specification5_spec__2_#t~ret10; 615#L159 assume !(0 != ~pumpRunning~0); 644#L316 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret15, processEnvironment_~tmp~3;havoc processEnvironment_~tmp~3; 637#L374 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret14, processEnvironment__wrappee__highWaterSensor_~tmp~2;havoc processEnvironment__wrappee__highWaterSensor_~tmp~2; 555#L348-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret33, isHighWaterLevel_~retValue_acc~6, isHighWaterLevel_~tmp~4, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~6;havoc isHighWaterLevel_~tmp~4;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~2;havoc isHighWaterSensorDry_~retValue_acc~2; 556#L130-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~2; 596#L135-1 isHighWaterLevel_#t~ret33 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~4 := isHighWaterLevel_#t~ret33;havoc isHighWaterLevel_#t~ret33; 606#L476-3 assume 0 != isHighWaterLevel_~tmp~4;isHighWaterLevel_~tmp___0~1 := 0; 628#L476-5 isHighWaterLevel_~retValue_acc~6 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~6; 612#L482-1 processEnvironment__wrappee__highWaterSensor_#t~ret14 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~2 := processEnvironment__wrappee__highWaterSensor_#t~ret14;havoc processEnvironment__wrappee__highWaterSensor_#t~ret14; 613#L352-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~2); 567#L323 havoc __utac_acc__Specification5_spec__3_#t~ret11, __utac_acc__Specification5_spec__3_#t~ret12, __utac_acc__Specification5_spec__3_~tmp~0, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~0;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~1;havoc getWaterLevel_~retValue_acc~1;getWaterLevel_~retValue_acc~1 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~1; 563#L122 __utac_acc__Specification5_spec__3_#t~ret11 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~0 := __utac_acc__Specification5_spec__3_#t~ret11;havoc __utac_acc__Specification5_spec__3_#t~ret11; 564#L170 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0); 530#L170-1 [2019-12-07 18:05:52,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:05:52,637 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2019-12-07 18:05:52,637 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:05:52,637 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358816687] [2019-12-07 18:05:52,638 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:05:52,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:05:52,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:05:52,689 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:05:52,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:05:52,690 INFO L82 PathProgramCache]: Analyzing trace with hash 459590415, now seen corresponding path program 1 times [2019-12-07 18:05:52,690 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:05:52,690 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534166618] [2019-12-07 18:05:52,690 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:05:52,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:05:52,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:05:52,723 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1534166618] [2019-12-07 18:05:52,723 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:05:52,723 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-07 18:05:52,724 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721752639] [2019-12-07 18:05:52,724 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-12-07 18:05:52,724 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:05:52,724 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 18:05:52,725 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 18:05:52,725 INFO L87 Difference]: Start difference. First operand 159 states and 218 transitions. cyclomatic complexity: 61 Second operand 5 states. [2019-12-07 18:05:52,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:05:52,900 INFO L93 Difference]: Finished difference Result 664 states and 921 transitions. [2019-12-07 18:05:52,900 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-07 18:05:52,901 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 664 states and 921 transitions. [2019-12-07 18:05:52,906 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 457 [2019-12-07 18:05:52,912 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 664 states to 664 states and 921 transitions. [2019-12-07 18:05:52,912 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 664 [2019-12-07 18:05:52,913 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 664 [2019-12-07 18:05:52,914 INFO L73 IsDeterministic]: Start isDeterministic. Operand 664 states and 921 transitions. [2019-12-07 18:05:52,916 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 18:05:52,916 INFO L688 BuchiCegarLoop]: Abstraction has 664 states and 921 transitions. [2019-12-07 18:05:52,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 664 states and 921 transitions. [2019-12-07 18:05:52,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 664 to 308. [2019-12-07 18:05:52,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 308 states. [2019-12-07 18:05:52,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 417 transitions. [2019-12-07 18:05:52,932 INFO L711 BuchiCegarLoop]: Abstraction has 308 states and 417 transitions. [2019-12-07 18:05:52,933 INFO L591 BuchiCegarLoop]: Abstraction has 308 states and 417 transitions. [2019-12-07 18:05:52,933 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-12-07 18:05:52,933 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 308 states and 417 transitions. [2019-12-07 18:05:52,934 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 218 [2019-12-07 18:05:52,935 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 18:05:52,935 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 18:05:52,935 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:05:52,936 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:05:52,936 INFO L794 eck$LassoCheckResult]: Stem: 1483#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13);call #t~string3.base, #t~string3.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string3.base, #t~string3.offset, 1);call write~init~int(77, #t~string3.base, 1 + #t~string3.offset, 1);call write~init~int(101, #t~string3.base, 2 + #t~string3.offset, 1);call write~init~int(116, #t~string3.base, 3 + #t~string3.offset, 1);call write~init~int(104, #t~string3.base, 4 + #t~string3.offset, 1);call write~init~int(58, #t~string3.base, 5 + #t~string3.offset, 1);call write~init~int(0, #t~string3.base, 6 + #t~string3.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string5.base, #t~string5.offset, 1);call write~init~int(82, #t~string5.base, 1 + #t~string5.offset, 1);call write~init~int(73, #t~string5.base, 2 + #t~string5.offset, 1);call write~init~int(84, #t~string5.base, 3 + #t~string5.offset, 1);call write~init~int(0, #t~string5.base, 4 + #t~string5.offset, 1);call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string7.base, #t~string7.offset, 1);call write~init~int(75, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 2 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string9.base, #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 1 + #t~string9.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(13);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(110, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 2 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 2 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 3 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string24.base, #t~string24.offset, 1);call write~init~int(80, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(117, #t~string24.base, 2 + #t~string24.offset, 1);call write~init~int(109, #t~string24.base, 3 + #t~string24.offset, 1);call write~init~int(112, #t~string24.base, 4 + #t~string24.offset, 1);call write~init~int(58, #t~string24.base, 5 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 6 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string26.base, #t~string26.offset, 1);call write~init~int(110, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 2 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string28.base, #t~string28.offset, 1);call write~init~int(102, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(102, #t~string28.base, 2 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 3 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string30.base, #t~string30.offset, 1);call write~init~int(32, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 2 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string32.base, #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 1 + #t~string32.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(30);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(9);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(21);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(30);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(9);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(21);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(30);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(9);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(25);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(30);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(9);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 1376#L-1 havoc main_#res;havoc main_#t~ret13, main_~retValue_acc~3, main_~tmp~1;havoc main_~retValue_acc~3;havoc main_~tmp~1; 1377#L574 havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 1378#L582 main_#t~ret13 := valid_product_#res;main_~tmp~1 := main_#t~ret13;havoc main_#t~ret13; 1396#L281 assume 0 != main_~tmp~1; 1478#L253 ~switchedOnBeforeTS~0 := 0; 1473#L149 havoc test_#t~nondet34, test_#t~nondet35, test_#t~nondet36, test_#t~nondet37, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1474#L170-1 [2019-12-07 18:05:52,936 INFO L796 eck$LassoCheckResult]: Loop: 1474#L170-1 assume !false; 1597#L498 assume test_~splverifierCounter~0 < 4; 1598#L499 test_~tmp~5 := test_#t~nondet34;havoc test_#t~nondet34; 1667#L507 assume !(0 != test_~tmp~5); 1664#L507-1 test_~tmp___0~2 := test_#t~nondet35;havoc test_#t~nondet35; 1663#L517 assume !(0 != test_~tmp___0~2); 1661#L517-1 test_~tmp___2~0 := test_#t~nondet36;havoc test_#t~nondet36; 1660#L527 assume 0 != test_~tmp___2~0; 1658#L533-2 havoc __utac_acc__Specification5_spec__2_#t~ret10;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~5;havoc isPumpRunning_~retValue_acc~5;isPumpRunning_~retValue_acc~5 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~5; 1657#L427 __utac_acc__Specification5_spec__2_#t~ret10 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret10;havoc __utac_acc__Specification5_spec__2_#t~ret10; 1646#L159 assume !(0 != ~pumpRunning~0); 1644#L316 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret15, processEnvironment_~tmp~3;havoc processEnvironment_~tmp~3; 1641#L374 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret14, processEnvironment__wrappee__highWaterSensor_~tmp~2;havoc processEnvironment__wrappee__highWaterSensor_~tmp~2; 1640#L348-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret33, isHighWaterLevel_~retValue_acc~6, isHighWaterLevel_~tmp~4, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~6;havoc isHighWaterLevel_~tmp~4;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~2;havoc isHighWaterSensorDry_~retValue_acc~2; 1639#L130-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~2; 1444#L135-1 isHighWaterLevel_#t~ret33 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~4 := isHighWaterLevel_#t~ret33;havoc isHighWaterLevel_#t~ret33; 1638#L476-3 assume 0 != isHighWaterLevel_~tmp~4;isHighWaterLevel_~tmp___0~1 := 0; 1637#L476-5 isHighWaterLevel_~retValue_acc~6 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~6; 1461#L482-1 processEnvironment__wrappee__highWaterSensor_#t~ret14 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~2 := processEnvironment__wrappee__highWaterSensor_#t~ret14;havoc processEnvironment__wrappee__highWaterSensor_#t~ret14; 1462#L352-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~2); 1410#L323 havoc __utac_acc__Specification5_spec__3_#t~ret11, __utac_acc__Specification5_spec__3_#t~ret12, __utac_acc__Specification5_spec__3_~tmp~0, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~0;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~1;havoc getWaterLevel_~retValue_acc~1;getWaterLevel_~retValue_acc~1 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~1; 1411#L122 __utac_acc__Specification5_spec__3_#t~ret11 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~0 := __utac_acc__Specification5_spec__3_#t~ret11;havoc __utac_acc__Specification5_spec__3_#t~ret11; 1532#L170 assume 2 != __utac_acc__Specification5_spec__3_~tmp~0;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~5;havoc isPumpRunning_~retValue_acc~5;isPumpRunning_~retValue_acc~5 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~5; 1530#L427-1 __utac_acc__Specification5_spec__3_#t~ret12 := isPumpRunning_#res;__utac_acc__Specification5_spec__3_~tmp___0~0 := __utac_acc__Specification5_spec__3_#t~ret12;havoc __utac_acc__Specification5_spec__3_#t~ret12; 1531#L174 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~0); 1474#L170-1 [2019-12-07 18:05:52,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:05:52,936 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 4 times [2019-12-07 18:05:52,936 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:05:52,937 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581918935] [2019-12-07 18:05:52,937 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:05:52,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:05:52,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:05:52,979 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:05:52,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:05:52,980 INFO L82 PathProgramCache]: Analyzing trace with hash -715255062, now seen corresponding path program 1 times [2019-12-07 18:05:52,980 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:05:52,980 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290440162] [2019-12-07 18:05:52,980 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:05:52,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:05:52,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:05:52,990 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:05:52,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:05:52,990 INFO L82 PathProgramCache]: Analyzing trace with hash -778681244, now seen corresponding path program 1 times [2019-12-07 18:05:52,991 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:05:52,991 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280524329] [2019-12-07 18:05:52,991 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:05:53,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:05:53,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:05:53,048 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:06:19,465 WARN L192 SmtUtils]: Spent 26.27 s on a formula simplification. DAG size of input: 456 DAG size of output: 404 [2019-12-07 18:06:32,851 WARN L192 SmtUtils]: Spent 13.38 s on a formula simplification that was a NOOP. DAG size: 402 [2019-12-07 18:06:32,905 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 07.12 06:06:32 BoogieIcfgContainer [2019-12-07 18:06:32,905 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-12-07 18:06:32,905 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 18:06:32,905 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 18:06:32,905 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 18:06:32,906 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:05:51" (3/4) ... [2019-12-07 18:06:32,908 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-12-07 18:06:32,944 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_487ac012-d28d-41aa-ad86-0a2e2cb8a322/bin/uautomizer/witness.graphml [2019-12-07 18:06:32,944 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 18:06:32,945 INFO L168 Benchmark]: Toolchain (without parser) took 41890.73 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 162.5 MB). Free memory was 946.1 MB in the beginning and 984.9 MB in the end (delta: -38.8 MB). Peak memory consumption was 123.7 MB. Max. memory is 11.5 GB. [2019-12-07 18:06:32,945 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 960.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:06:32,946 INFO L168 Benchmark]: CACSL2BoogieTranslator took 324.30 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 107.0 MB). Free memory was 940.8 MB in the beginning and 1.1 GB in the end (delta: -150.2 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. [2019-12-07 18:06:32,946 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.83 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-07 18:06:32,946 INFO L168 Benchmark]: Boogie Preprocessor took 29.29 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:06:32,947 INFO L168 Benchmark]: RCFGBuilder took 451.59 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: 73.4 MB). Peak memory consumption was 73.4 MB. Max. memory is 11.5 GB. [2019-12-07 18:06:32,947 INFO L168 Benchmark]: BuchiAutomizer took 41000.95 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 55.6 MB). Free memory was 1.0 GB in the beginning and 994.1 MB in the end (delta: 18.0 MB). Peak memory consumption was 231.5 MB. Max. memory is 11.5 GB. [2019-12-07 18:06:32,947 INFO L168 Benchmark]: Witness Printer took 39.09 ms. Allocated memory is still 1.2 GB. Free memory was 994.1 MB in the beginning and 984.9 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 11.5 GB. [2019-12-07 18:06:32,949 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 960.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 324.30 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 107.0 MB). Free memory was 940.8 MB in the beginning and 1.1 GB in the end (delta: -150.2 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 42.83 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 29.29 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 451.59 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: 73.4 MB). Peak memory consumption was 73.4 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 41000.95 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 55.6 MB). Free memory was 1.0 GB in the beginning and 994.1 MB in the end (delta: 18.0 MB). Peak memory consumption was 231.5 MB. Max. memory is 11.5 GB. * Witness Printer took 39.09 ms. Allocated memory is still 1.2 GB. Free memory was 994.1 MB in the beginning and 984.9 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 308 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 40.9s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 40.4s. Construction of modules took 0.2s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 356 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 308 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 567 SDtfs, 1500 SDslu, 775 SDs, 0 SdLazy, 172 SolverSat, 54 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time LassoAnalysisResults: nont1 unkn0 SFLI2 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: 497]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=6732} State at position 1 is {NULL=0, NULL=0, NULL=6734, NULL=6732, retValue_acc=0, NULL=6756, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@15064d17=0, NULL=6753, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6983e68=0, NULL=0, NULL=0, methaneLevelCritical=0, tmp___0=0, NULL=0, tmp=0, NULL=0, NULL=0, NULL=6735, NULL=0, tmp___1=0, tmp=1, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@263aadd5=0, NULL=6739, NULL=6752, cleanupTimeShifts=4, switchedOnBeforeTS=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@592ffaf6=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@72e24d0d=64, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2c1d862f=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2678df86=0, NULL=0, systemActive=1, waterLevel=1, NULL=6736, \result=1, NULL=0, NULL=0, NULL=6743, \result=0, NULL=6741, NULL=0, NULL=0, tmp___0=0, \result=1, retValue_acc=1, NULL=6738, head=0, pumpRunning=0, NULL=6742, \result=0, NULL=6745, tmp=1, retValue_acc=1, NULL=0, NULL=0, \result=1, NULL=6740, NULL=6737, NULL=6733, retValue_acc=1, NULL=0, tmp=1, NULL=6749, tmp___2=64, tmp___0=0, NULL=6754, NULL=6755, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@47555d9a=0, splverifierCounter=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@dc0f2ae=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=6748, NULL=6757, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@371f6dad=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@43e2cc2e=0, NULL=6744, tmp=0, head=0, NULL=0, NULL=0, NULL=6750, NULL=0, NULL=0, NULL=6746, NULL=6747, NULL=0, NULL=6751, retValue_acc=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; [L143] int switchedOnBeforeTS ; [L192] int cleanupTimeShifts = 4; [L306] int pumpRunning = 0; [L307] int systemActive = 1; [L756] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L272] int retValue_acc ; [L273] int tmp ; [L578] int retValue_acc ; [L581] retValue_acc = 1 [L582] return (retValue_acc); [L279] tmp = valid_product() [L281] COND TRUE \read(tmp) [L148] switchedOnBeforeTS = 0 [L488] int splverifierCounter ; [L489] int tmp ; [L490] int tmp___0 ; [L491] int tmp___1 ; [L492] int tmp___2 ; [L495] splverifierCounter = 0 Loop: [L497] COND TRUE 1 [L499] COND TRUE splverifierCounter < 4 [L505] tmp = __VERIFIER_nondet_int() [L507] COND FALSE !(\read(tmp)) [L515] tmp___0 = __VERIFIER_nondet_int() [L517] COND FALSE !(\read(tmp___0)) [L525] tmp___2 = __VERIFIER_nondet_int() [L527] COND TRUE \read(tmp___2) [L423] int retValue_acc ; [L426] retValue_acc = pumpRunning [L427] return (retValue_acc); [L157] switchedOnBeforeTS = isPumpRunning() [L316] COND FALSE !(\read(pumpRunning)) [L323] COND TRUE \read(systemActive) [L371] int tmp ; [L374] COND FALSE !(\read(pumpRunning)) [L345] int tmp ; [L348] COND TRUE ! pumpRunning [L468] int retValue_acc ; [L469] int tmp ; [L470] int tmp___0 ; [L127] int retValue_acc ; [L130] COND TRUE waterLevel < 2 [L131] retValue_acc = 1 [L132] return (retValue_acc); [L474] tmp = isHighWaterSensorDry() [L476] COND TRUE \read(tmp) [L477] tmp___0 = 0 [L481] retValue_acc = tmp___0 [L482] return (retValue_acc); [L350] tmp = isHighWaterLevel() [L352] COND FALSE !(\read(tmp)) [L163] int tmp ; [L164] int tmp___0 ; [L118] int retValue_acc ; [L121] retValue_acc = waterLevel [L122] return (retValue_acc); [L168] tmp = getWaterLevel() [L170] COND TRUE tmp != 2 [L423] int retValue_acc ; [L426] retValue_acc = pumpRunning [L427] return (retValue_acc); [L172] tmp___0 = isPumpRunning() [L174] COND FALSE !(\read(tmp___0)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...