./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product64.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_820673de-5fe7-496e-aeae-2b2c9695a53c/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_820673de-5fe7-496e-aeae-2b2c9695a53c/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_820673de-5fe7-496e-aeae-2b2c9695a53c/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_820673de-5fe7-496e-aeae-2b2c9695a53c/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product64.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_820673de-5fe7-496e-aeae-2b2c9695a53c/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_820673de-5fe7-496e-aeae-2b2c9695a53c/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 d5d7e7efc35ba4bdb3849277724b5f801bec138c ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 13:00:11,311 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 13:00:11,312 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 13:00:11,321 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 13:00:11,322 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 13:00:11,323 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 13:00:11,324 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 13:00:11,325 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 13:00:11,327 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 13:00:11,328 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 13:00:11,329 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 13:00:11,330 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 13:00:11,330 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 13:00:11,331 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 13:00:11,332 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 13:00:11,333 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 13:00:11,333 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 13:00:11,334 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 13:00:11,336 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 13:00:11,338 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 13:00:11,339 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 13:00:11,340 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 13:00:11,341 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 13:00:11,341 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 13:00:11,343 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 13:00:11,343 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 13:00:11,343 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 13:00:11,344 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 13:00:11,344 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 13:00:11,344 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 13:00:11,345 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 13:00:11,345 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 13:00:11,345 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 13:00:11,346 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 13:00:11,346 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 13:00:11,347 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 13:00:11,347 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 13:00:11,347 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 13:00:11,347 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 13:00:11,348 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 13:00:11,348 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 13:00:11,349 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_820673de-5fe7-496e-aeae-2b2c9695a53c/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-12-07 13:00:11,359 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 13:00:11,360 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 13:00:11,360 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 13:00:11,361 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 13:00:11,361 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 13:00:11,361 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-12-07 13:00:11,361 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-12-07 13:00:11,361 INFO L138 SettingsManager]: * Use old map elimination=false [2019-12-07 13:00:11,361 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-12-07 13:00:11,361 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-12-07 13:00:11,362 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-12-07 13:00:11,362 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 13:00:11,362 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 13:00:11,362 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 13:00:11,362 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 13:00:11,362 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 13:00:11,362 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 13:00:11,363 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-12-07 13:00:11,363 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-12-07 13:00:11,363 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-12-07 13:00:11,363 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 13:00:11,363 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 13:00:11,363 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-12-07 13:00:11,363 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 13:00:11,363 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-12-07 13:00:11,363 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 13:00:11,364 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 13:00:11,364 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-12-07 13:00:11,364 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 13:00:11,364 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 13:00:11,364 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 13:00:11,364 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-12-07 13:00:11,365 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-12-07 13:00:11,365 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_820673de-5fe7-496e-aeae-2b2c9695a53c/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 -> d5d7e7efc35ba4bdb3849277724b5f801bec138c [2019-12-07 13:00:11,459 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 13:00:11,467 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 13:00:11,469 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 13:00:11,470 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 13:00:11,470 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 13:00:11,470 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_820673de-5fe7-496e-aeae-2b2c9695a53c/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec5_product64.cil.c [2019-12-07 13:00:11,506 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_820673de-5fe7-496e-aeae-2b2c9695a53c/bin/uautomizer/data/161579d17/6210395f5aa448eabc0780486046fc54/FLAG9c23b4b75 [2019-12-07 13:00:11,931 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 13:00:11,931 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_820673de-5fe7-496e-aeae-2b2c9695a53c/sv-benchmarks/c/product-lines/minepump_spec5_product64.cil.c [2019-12-07 13:00:11,941 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_820673de-5fe7-496e-aeae-2b2c9695a53c/bin/uautomizer/data/161579d17/6210395f5aa448eabc0780486046fc54/FLAG9c23b4b75 [2019-12-07 13:00:11,949 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_820673de-5fe7-496e-aeae-2b2c9695a53c/bin/uautomizer/data/161579d17/6210395f5aa448eabc0780486046fc54 [2019-12-07 13:00:11,951 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 13:00:11,952 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 13:00:11,952 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 13:00:11,952 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 13:00:11,955 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 13:00:11,955 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 01:00:11" (1/1) ... [2019-12-07 13:00:11,957 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7762f741 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:00:11, skipping insertion in model container [2019-12-07 13:00:11,957 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 01:00:11" (1/1) ... [2019-12-07 13:00:11,962 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 13:00:11,991 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 13:00:12,231 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 13:00:12,241 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 13:00:12,305 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 13:00:12,331 INFO L208 MainTranslator]: Completed translation [2019-12-07 13:00:12,331 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:00:12 WrapperNode [2019-12-07 13:00:12,331 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 13:00:12,332 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 13:00:12,332 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 13:00:12,332 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 13:00:12,339 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:00:12" (1/1) ... [2019-12-07 13:00:12,356 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:00:12" (1/1) ... [2019-12-07 13:00:12,406 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 13:00:12,407 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 13:00:12,407 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 13:00:12,407 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 13:00:12,415 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:00:12" (1/1) ... [2019-12-07 13:00:12,415 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:00:12" (1/1) ... [2019-12-07 13:00:12,423 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:00:12" (1/1) ... [2019-12-07 13:00:12,423 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:00:12" (1/1) ... [2019-12-07 13:00:12,445 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:00:12" (1/1) ... [2019-12-07 13:00:12,458 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:00:12" (1/1) ... [2019-12-07 13:00:12,462 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:00:12" (1/1) ... [2019-12-07 13:00:12,469 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 13:00:12,470 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 13:00:12,470 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 13:00:12,470 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 13:00:12,471 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:00:12" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_820673de-5fe7-496e-aeae-2b2c9695a53c/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 13:00:12,524 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 13:00:12,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-12-07 13:00:12,525 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 13:00:12,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 13:00:13,077 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 13:00:13,078 INFO L287 CfgBuilder]: Removed 368 assume(true) statements. [2019-12-07 13:00:13,078 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:00:13 BoogieIcfgContainer [2019-12-07 13:00:13,079 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 13:00:13,079 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-12-07 13:00:13,079 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-12-07 13:00:13,081 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-12-07 13:00:13,082 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 13:00:13,082 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 07.12 01:00:11" (1/3) ... [2019-12-07 13:00:13,083 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7a844760 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 01:00:13, skipping insertion in model container [2019-12-07 13:00:13,083 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 13:00:13,083 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:00:12" (2/3) ... [2019-12-07 13:00:13,083 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7a844760 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 01:00:13, skipping insertion in model container [2019-12-07 13:00:13,083 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 13:00:13,083 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:00:13" (3/3) ... [2019-12-07 13:00:13,084 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product64.cil.c [2019-12-07 13:00:13,114 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-12-07 13:00:13,115 INFO L357 BuchiCegarLoop]: Hoare is false [2019-12-07 13:00:13,115 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-12-07 13:00:13,115 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 13:00:13,115 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 13:00:13,115 INFO L361 BuchiCegarLoop]: Difference is false [2019-12-07 13:00:13,115 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 13:00:13,115 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-12-07 13:00:13,135 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 233 states. [2019-12-07 13:00:13,160 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 153 [2019-12-07 13:00:13,160 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 13:00:13,160 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 13:00:13,166 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 13:00:13,166 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 13:00:13,166 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-12-07 13:00:13,166 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 233 states. [2019-12-07 13:00:13,173 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 153 [2019-12-07 13:00:13,173 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 13:00:13,173 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 13:00:13,174 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 13:00:13,174 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 13:00:13,178 INFO L794 eck$LassoCheckResult]: Stem: 93#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(13);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(110, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 2 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 2 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 3 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string19.base, #t~string19.offset, 1);call write~init~int(80, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(117, #t~string19.base, 2 + #t~string19.offset, 1);call write~init~int(109, #t~string19.base, 3 + #t~string19.offset, 1);call write~init~int(112, #t~string19.base, 4 + #t~string19.offset, 1);call write~init~int(58, #t~string19.base, 5 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 6 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string21.base, #t~string21.offset, 1);call write~init~int(110, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 2 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(102, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(102, #t~string23.base, 2 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 3 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string25.base, #t~string25.offset, 1);call write~init~int(32, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 2 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string27.base, #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 1 + #t~string27.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(13);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string33.base, #t~string33.offset, 1);call write~init~int(77, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(101, #t~string33.base, 2 + #t~string33.offset, 1);call write~init~int(116, #t~string33.base, 3 + #t~string33.offset, 1);call write~init~int(104, #t~string33.base, 4 + #t~string33.offset, 1);call write~init~int(58, #t~string33.base, 5 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 6 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string35.base, #t~string35.offset, 1);call write~init~int(82, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(73, #t~string35.base, 2 + #t~string35.offset, 1);call write~init~int(84, #t~string35.base, 3 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 4 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string37.base, #t~string37.offset, 1);call write~init~int(75, #t~string37.base, 1 + #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 2 + #t~string37.offset, 1);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string39.base, #t~string39.offset, 1);call write~init~int(0, #t~string39.base, 1 + #t~string39.offset, 1);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~string63.base, #t~string63.offset := #Ultimate.allocOnStack(30);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(9);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(21);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);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(30);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(9);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(25);~switchedOnBeforeTS~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 3#L-1true havoc main_#res;havoc main_#t~ret40, main_~retValue_acc~8, main_~tmp~8;havoc main_~retValue_acc~8;havoc main_~tmp~8; 32#L675true havoc valid_product_#res;havoc valid_product_~retValue_acc~10;havoc valid_product_~retValue_acc~10;valid_product_~retValue_acc~10 := 1;valid_product_#res := valid_product_~retValue_acc~10; 63#L683true main_#t~ret40 := valid_product_#res;main_~tmp~8 := main_#t~ret40;havoc main_#t~ret40; 222#L630true assume 0 != main_~tmp~8; 195#L603true ~switchedOnBeforeTS~0 := 0; 110#L49true havoc test_#t~nondet3, test_#t~nondet4, test_#t~nondet5, test_#t~nondet6, test_~splverifierCounter~0, test_~tmp~1, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~1;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 7#L70-1true [2019-12-07 13:00:13,178 INFO L796 eck$LassoCheckResult]: Loop: 7#L70-1true assume !false; 4#L109true assume test_~splverifierCounter~0 < 4; 102#L110true test_~tmp~1 := test_#t~nondet3;havoc test_#t~nondet3; 228#L118true assume !(0 != test_~tmp~1); 226#L118-1true test_~tmp___0~1 := test_#t~nondet4;havoc test_#t~nondet4; 145#L128true assume !(0 != test_~tmp___0~1); 143#L128-1true test_~tmp___2~0 := test_#t~nondet5;havoc test_#t~nondet5; 65#L138true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 185#L146-1true havoc __utac_acc__Specification5_spec__2_#t~ret0;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 44#L339true __utac_acc__Specification5_spec__2_#t~ret0 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret0;havoc __utac_acc__Specification5_spec__2_#t~ret0; 9#L59true assume !(0 != ~pumpRunning~0); 58#L185true assume !(0 != ~systemActive~0); 129#L192true havoc __utac_acc__Specification5_spec__3_#t~ret1, __utac_acc__Specification5_spec__3_#t~ret2, __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~5;havoc getWaterLevel_~retValue_acc~5;getWaterLevel_~retValue_acc~5 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~5; 5#L516true __utac_acc__Specification5_spec__3_#t~ret1 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~0 := __utac_acc__Specification5_spec__3_#t~ret1;havoc __utac_acc__Specification5_spec__3_#t~ret1; 10#L70true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0); 7#L70-1true [2019-12-07 13:00:13,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:00:13,182 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2019-12-07 13:00:13,188 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 13:00:13,188 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242683215] [2019-12-07 13:00:13,188 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 13:00:13,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 13:00:13,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 13:00:13,419 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 13:00:13,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:00:13,420 INFO L82 PathProgramCache]: Analyzing trace with hash 681690678, now seen corresponding path program 1 times [2019-12-07 13:00:13,420 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 13:00:13,420 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134006304] [2019-12-07 13:00:13,421 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 13:00:13,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:00:13,459 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 13:00:13,459 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2134006304] [2019-12-07 13:00:13,459 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 13:00:13,460 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 13:00:13,460 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332533834] [2019-12-07 13:00:13,465 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-12-07 13:00:13,465 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 13:00:13,476 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 13:00:13,476 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 13:00:13,477 INFO L87 Difference]: Start difference. First operand 233 states. Second operand 3 states. [2019-12-07 13:00:13,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 13:00:13,533 INFO L93 Difference]: Finished difference Result 459 states and 671 transitions. [2019-12-07 13:00:13,533 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 13:00:13,534 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 459 states and 671 transitions. [2019-12-07 13:00:13,541 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 302 [2019-12-07 13:00:13,549 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 459 states to 445 states and 656 transitions. [2019-12-07 13:00:13,550 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 445 [2019-12-07 13:00:13,551 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 445 [2019-12-07 13:00:13,552 INFO L73 IsDeterministic]: Start isDeterministic. Operand 445 states and 656 transitions. [2019-12-07 13:00:13,555 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 13:00:13,555 INFO L688 BuchiCegarLoop]: Abstraction has 445 states and 656 transitions. [2019-12-07 13:00:13,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 445 states and 656 transitions. [2019-12-07 13:00:13,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 445 to 443. [2019-12-07 13:00:13,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 443 states. [2019-12-07 13:00:13,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 653 transitions. [2019-12-07 13:00:13,595 INFO L711 BuchiCegarLoop]: Abstraction has 443 states and 653 transitions. [2019-12-07 13:00:13,595 INFO L591 BuchiCegarLoop]: Abstraction has 443 states and 653 transitions. [2019-12-07 13:00:13,595 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-12-07 13:00:13,595 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 443 states and 653 transitions. [2019-12-07 13:00:13,599 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 300 [2019-12-07 13:00:13,599 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 13:00:13,599 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 13:00:13,600 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 13:00:13,600 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 13:00:13,600 INFO L794 eck$LassoCheckResult]: Stem: 842#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(13);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(110, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 2 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 2 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 3 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string19.base, #t~string19.offset, 1);call write~init~int(80, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(117, #t~string19.base, 2 + #t~string19.offset, 1);call write~init~int(109, #t~string19.base, 3 + #t~string19.offset, 1);call write~init~int(112, #t~string19.base, 4 + #t~string19.offset, 1);call write~init~int(58, #t~string19.base, 5 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 6 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string21.base, #t~string21.offset, 1);call write~init~int(110, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 2 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(102, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(102, #t~string23.base, 2 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 3 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string25.base, #t~string25.offset, 1);call write~init~int(32, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 2 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string27.base, #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 1 + #t~string27.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(13);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string33.base, #t~string33.offset, 1);call write~init~int(77, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(101, #t~string33.base, 2 + #t~string33.offset, 1);call write~init~int(116, #t~string33.base, 3 + #t~string33.offset, 1);call write~init~int(104, #t~string33.base, 4 + #t~string33.offset, 1);call write~init~int(58, #t~string33.base, 5 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 6 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string35.base, #t~string35.offset, 1);call write~init~int(82, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(73, #t~string35.base, 2 + #t~string35.offset, 1);call write~init~int(84, #t~string35.base, 3 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 4 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string37.base, #t~string37.offset, 1);call write~init~int(75, #t~string37.base, 1 + #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 2 + #t~string37.offset, 1);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string39.base, #t~string39.offset, 1);call write~init~int(0, #t~string39.base, 1 + #t~string39.offset, 1);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~string63.base, #t~string63.offset := #Ultimate.allocOnStack(30);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(9);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(21);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);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(30);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(9);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(25);~switchedOnBeforeTS~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 701#L-1 havoc main_#res;havoc main_#t~ret40, main_~retValue_acc~8, main_~tmp~8;havoc main_~retValue_acc~8;havoc main_~tmp~8; 702#L675 havoc valid_product_#res;havoc valid_product_~retValue_acc~10;havoc valid_product_~retValue_acc~10;valid_product_~retValue_acc~10 := 1;valid_product_#res := valid_product_~retValue_acc~10; 747#L683 main_#t~ret40 := valid_product_#res;main_~tmp~8 := main_#t~ret40;havoc main_#t~ret40; 793#L630 assume 0 != main_~tmp~8; 956#L603 ~switchedOnBeforeTS~0 := 0; 863#L49 havoc test_#t~nondet3, test_#t~nondet4, test_#t~nondet5, test_#t~nondet6, test_~splverifierCounter~0, test_~tmp~1, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~1;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 711#L70-1 [2019-12-07 13:00:13,601 INFO L796 eck$LassoCheckResult]: Loop: 711#L70-1 assume !false; 703#L109 assume test_~splverifierCounter~0 < 4; 704#L110 test_~tmp~1 := test_#t~nondet3;havoc test_#t~nondet3; 854#L118 assume !(0 != test_~tmp~1); 975#L118-1 test_~tmp___0~1 := test_#t~nondet4;havoc test_#t~nondet4; 976#L128 assume !(0 != test_~tmp___0~1); 903#L128-1 test_~tmp___2~0 := test_#t~nondet5;havoc test_#t~nondet5; 794#L138 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 796#L146-1 havoc __utac_acc__Specification5_spec__2_#t~ret0;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 766#L339 __utac_acc__Specification5_spec__2_#t~ret0 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret0;havoc __utac_acc__Specification5_spec__2_#t~ret0; 714#L59 assume !(0 != ~pumpRunning~0); 715#L185 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret9, processEnvironment_~tmp~4;havoc processEnvironment_~tmp~4; 786#L269 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret8, processEnvironment__wrappee__methaneQuery_~tmp~3;havoc processEnvironment__wrappee__methaneQuery_~tmp~3; 892#L243-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret7, processEnvironment__wrappee__highWaterSensor_~tmp~2;havoc processEnvironment__wrappee__highWaterSensor_~tmp~2; 927#L217-3 assume !(0 == ~pumpRunning~0); 884#L192 havoc __utac_acc__Specification5_spec__3_#t~ret1, __utac_acc__Specification5_spec__3_#t~ret2, __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~5;havoc getWaterLevel_~retValue_acc~5;getWaterLevel_~retValue_acc~5 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~5; 706#L516 __utac_acc__Specification5_spec__3_#t~ret1 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~0 := __utac_acc__Specification5_spec__3_#t~ret1;havoc __utac_acc__Specification5_spec__3_#t~ret1; 707#L70 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0); 711#L70-1 [2019-12-07 13:00:13,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:00:13,601 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2019-12-07 13:00:13,601 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 13:00:13,602 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836569079] [2019-12-07 13:00:13,602 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 13:00:13,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 13:00:13,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 13:00:13,674 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 13:00:13,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:00:13,675 INFO L82 PathProgramCache]: Analyzing trace with hash -1785171479, now seen corresponding path program 1 times [2019-12-07 13:00:13,675 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 13:00:13,675 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988335180] [2019-12-07 13:00:13,675 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 13:00:13,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:00:13,687 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 13:00:13,687 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988335180] [2019-12-07 13:00:13,687 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 13:00:13,687 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 13:00:13,688 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979978240] [2019-12-07 13:00:13,688 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-12-07 13:00:13,688 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 13:00:13,688 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 13:00:13,688 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 13:00:13,689 INFO L87 Difference]: Start difference. First operand 443 states and 653 transitions. cyclomatic complexity: 213 Second operand 3 states. [2019-12-07 13:00:13,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 13:00:13,786 INFO L93 Difference]: Finished difference Result 452 states and 631 transitions. [2019-12-07 13:00:13,786 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 13:00:13,786 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 452 states and 631 transitions. [2019-12-07 13:00:13,790 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 315 [2019-12-07 13:00:13,793 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 452 states to 452 states and 631 transitions. [2019-12-07 13:00:13,793 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 452 [2019-12-07 13:00:13,794 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 452 [2019-12-07 13:00:13,794 INFO L73 IsDeterministic]: Start isDeterministic. Operand 452 states and 631 transitions. [2019-12-07 13:00:13,795 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 13:00:13,795 INFO L688 BuchiCegarLoop]: Abstraction has 452 states and 631 transitions. [2019-12-07 13:00:13,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 452 states and 631 transitions. [2019-12-07 13:00:13,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 452 to 452. [2019-12-07 13:00:13,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 452 states. [2019-12-07 13:00:13,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 452 states to 452 states and 631 transitions. [2019-12-07 13:00:13,809 INFO L711 BuchiCegarLoop]: Abstraction has 452 states and 631 transitions. [2019-12-07 13:00:13,809 INFO L591 BuchiCegarLoop]: Abstraction has 452 states and 631 transitions. [2019-12-07 13:00:13,809 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-12-07 13:00:13,809 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 452 states and 631 transitions. [2019-12-07 13:00:13,811 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 315 [2019-12-07 13:00:13,811 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 13:00:13,811 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 13:00:13,812 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 13:00:13,812 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] [2019-12-07 13:00:13,812 INFO L794 eck$LassoCheckResult]: Stem: 1787#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(13);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(110, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 2 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 2 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 3 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string19.base, #t~string19.offset, 1);call write~init~int(80, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(117, #t~string19.base, 2 + #t~string19.offset, 1);call write~init~int(109, #t~string19.base, 3 + #t~string19.offset, 1);call write~init~int(112, #t~string19.base, 4 + #t~string19.offset, 1);call write~init~int(58, #t~string19.base, 5 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 6 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string21.base, #t~string21.offset, 1);call write~init~int(110, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 2 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(102, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(102, #t~string23.base, 2 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 3 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string25.base, #t~string25.offset, 1);call write~init~int(32, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 2 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string27.base, #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 1 + #t~string27.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(13);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string33.base, #t~string33.offset, 1);call write~init~int(77, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(101, #t~string33.base, 2 + #t~string33.offset, 1);call write~init~int(116, #t~string33.base, 3 + #t~string33.offset, 1);call write~init~int(104, #t~string33.base, 4 + #t~string33.offset, 1);call write~init~int(58, #t~string33.base, 5 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 6 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string35.base, #t~string35.offset, 1);call write~init~int(82, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(73, #t~string35.base, 2 + #t~string35.offset, 1);call write~init~int(84, #t~string35.base, 3 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 4 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string37.base, #t~string37.offset, 1);call write~init~int(75, #t~string37.base, 1 + #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 2 + #t~string37.offset, 1);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string39.base, #t~string39.offset, 1);call write~init~int(0, #t~string39.base, 1 + #t~string39.offset, 1);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~string63.base, #t~string63.offset := #Ultimate.allocOnStack(30);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(9);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(21);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);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(30);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(9);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(25);~switchedOnBeforeTS~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 1602#L-1 havoc main_#res;havoc main_#t~ret40, main_~retValue_acc~8, main_~tmp~8;havoc main_~retValue_acc~8;havoc main_~tmp~8; 1603#L675 havoc valid_product_#res;havoc valid_product_~retValue_acc~10;havoc valid_product_~retValue_acc~10;valid_product_~retValue_acc~10 := 1;valid_product_#res := valid_product_~retValue_acc~10; 1708#L683 main_#t~ret40 := valid_product_#res;main_~tmp~8 := main_#t~ret40;havoc main_#t~ret40; 1747#L630 assume 0 != main_~tmp~8; 1758#L603 ~switchedOnBeforeTS~0 := 0; 1759#L49 havoc test_#t~nondet3, test_#t~nondet4, test_#t~nondet5, test_#t~nondet6, test_~splverifierCounter~0, test_~tmp~1, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~1;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1799#L70-1 [2019-12-07 13:00:13,813 INFO L796 eck$LassoCheckResult]: Loop: 1799#L70-1 assume !false; 1906#L109 assume test_~splverifierCounter~0 < 4; 1905#L110 test_~tmp~1 := test_#t~nondet3;havoc test_#t~nondet3; 1904#L118 assume !(0 != test_~tmp~1); 1902#L118-1 test_~tmp___0~1 := test_#t~nondet4;havoc test_#t~nondet4; 1901#L128 assume !(0 != test_~tmp___0~1); 1634#L128-1 test_~tmp___2~0 := test_#t~nondet5;havoc test_#t~nondet5; 1635#L138 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 1744#L146-1 havoc __utac_acc__Specification5_spec__2_#t~ret0;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 1721#L339 __utac_acc__Specification5_spec__2_#t~ret0 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret0;havoc __utac_acc__Specification5_spec__2_#t~ret0; 1722#L59 assume !(0 != ~pumpRunning~0); 1855#L185 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret9, processEnvironment_~tmp~4;havoc processEnvironment_~tmp~4; 1894#L269 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret8, processEnvironment__wrappee__methaneQuery_~tmp~3;havoc processEnvironment__wrappee__methaneQuery_~tmp~3; 1892#L243-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret7, processEnvironment__wrappee__highWaterSensor_~tmp~2;havoc processEnvironment__wrappee__highWaterSensor_~tmp~2; 1808#L217-3 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret28, isHighWaterLevel_~retValue_acc~2, isHighWaterLevel_~tmp~6, isHighWaterLevel_~tmp___0~2;havoc isHighWaterLevel_~retValue_acc~2;havoc isHighWaterLevel_~tmp~6;havoc isHighWaterLevel_~tmp___0~2;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~6;havoc isHighWaterSensorDry_~retValue_acc~6; 1636#L524-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~6 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~6; 1637#L529-3 isHighWaterLevel_#t~ret28 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~6 := isHighWaterLevel_#t~ret28;havoc isHighWaterLevel_#t~ret28; 1706#L388-9 assume 0 != isHighWaterLevel_~tmp~6;isHighWaterLevel_~tmp___0~2 := 0; 1738#L388-11 isHighWaterLevel_~retValue_acc~2 := isHighWaterLevel_~tmp___0~2;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~2; 1727#L394-3 processEnvironment__wrappee__highWaterSensor_#t~ret7 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~2 := processEnvironment__wrappee__highWaterSensor_#t~ret7;havoc processEnvironment__wrappee__highWaterSensor_#t~ret7; 1661#L221-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~2); 1662#L192 havoc __utac_acc__Specification5_spec__3_#t~ret1, __utac_acc__Specification5_spec__3_#t~ret2, __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~5;havoc getWaterLevel_~retValue_acc~5;getWaterLevel_~retValue_acc~5 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~5; 1911#L516 __utac_acc__Specification5_spec__3_#t~ret1 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~0 := __utac_acc__Specification5_spec__3_#t~ret1;havoc __utac_acc__Specification5_spec__3_#t~ret1; 1907#L70 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0); 1799#L70-1 [2019-12-07 13:00:13,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:00:13,813 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2019-12-07 13:00:13,813 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 13:00:13,813 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183332527] [2019-12-07 13:00:13,814 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 13:00:13,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 13:00:13,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 13:00:13,868 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 13:00:13,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:00:13,868 INFO L82 PathProgramCache]: Analyzing trace with hash 1255643605, now seen corresponding path program 1 times [2019-12-07 13:00:13,868 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 13:00:13,868 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782812508] [2019-12-07 13:00:13,868 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 13:00:13,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:00:13,904 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 13:00:13,904 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782812508] [2019-12-07 13:00:13,904 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 13:00:13,905 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-07 13:00:13,905 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773782970] [2019-12-07 13:00:13,905 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-12-07 13:00:13,905 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 13:00:13,906 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 13:00:13,906 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 13:00:13,906 INFO L87 Difference]: Start difference. First operand 452 states and 631 transitions. cyclomatic complexity: 182 Second operand 5 states. [2019-12-07 13:00:14,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 13:00:14,162 INFO L93 Difference]: Finished difference Result 2147 states and 3011 transitions. [2019-12-07 13:00:14,162 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-07 13:00:14,163 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 2147 states and 3011 transitions. [2019-12-07 13:00:14,179 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 1478 [2019-12-07 13:00:14,191 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 2147 states to 2147 states and 3011 transitions. [2019-12-07 13:00:14,191 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 2147 [2019-12-07 13:00:14,193 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 2147 [2019-12-07 13:00:14,193 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2147 states and 3011 transitions. [2019-12-07 13:00:14,195 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 13:00:14,195 INFO L688 BuchiCegarLoop]: Abstraction has 2147 states and 3011 transitions. [2019-12-07 13:00:14,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2147 states and 3011 transitions. [2019-12-07 13:00:14,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2147 to 891. [2019-12-07 13:00:14,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 891 states. [2019-12-07 13:00:14,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 891 states to 891 states and 1231 transitions. [2019-12-07 13:00:14,214 INFO L711 BuchiCegarLoop]: Abstraction has 891 states and 1231 transitions. [2019-12-07 13:00:14,214 INFO L591 BuchiCegarLoop]: Abstraction has 891 states and 1231 transitions. [2019-12-07 13:00:14,214 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-12-07 13:00:14,214 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 891 states and 1231 transitions. [2019-12-07 13:00:14,217 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 626 [2019-12-07 13:00:14,217 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 13:00:14,217 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 13:00:14,218 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 13:00:14,218 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, 1] [2019-12-07 13:00:14,218 INFO L794 eck$LassoCheckResult]: Stem: 4407#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(13);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(110, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 2 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 2 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 3 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string19.base, #t~string19.offset, 1);call write~init~int(80, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(117, #t~string19.base, 2 + #t~string19.offset, 1);call write~init~int(109, #t~string19.base, 3 + #t~string19.offset, 1);call write~init~int(112, #t~string19.base, 4 + #t~string19.offset, 1);call write~init~int(58, #t~string19.base, 5 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 6 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string21.base, #t~string21.offset, 1);call write~init~int(110, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 2 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(102, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(102, #t~string23.base, 2 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 3 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string25.base, #t~string25.offset, 1);call write~init~int(32, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 2 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string27.base, #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 1 + #t~string27.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(13);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string33.base, #t~string33.offset, 1);call write~init~int(77, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(101, #t~string33.base, 2 + #t~string33.offset, 1);call write~init~int(116, #t~string33.base, 3 + #t~string33.offset, 1);call write~init~int(104, #t~string33.base, 4 + #t~string33.offset, 1);call write~init~int(58, #t~string33.base, 5 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 6 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string35.base, #t~string35.offset, 1);call write~init~int(82, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(73, #t~string35.base, 2 + #t~string35.offset, 1);call write~init~int(84, #t~string35.base, 3 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 4 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string37.base, #t~string37.offset, 1);call write~init~int(75, #t~string37.base, 1 + #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 2 + #t~string37.offset, 1);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string39.base, #t~string39.offset, 1);call write~init~int(0, #t~string39.base, 1 + #t~string39.offset, 1);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~string63.base, #t~string63.offset := #Ultimate.allocOnStack(30);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(9);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(21);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);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(30);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(9);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(25);~switchedOnBeforeTS~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 4220#L-1 havoc main_#res;havoc main_#t~ret40, main_~retValue_acc~8, main_~tmp~8;havoc main_~retValue_acc~8;havoc main_~tmp~8; 4221#L675 havoc valid_product_#res;havoc valid_product_~retValue_acc~10;havoc valid_product_~retValue_acc~10;valid_product_~retValue_acc~10 := 1;valid_product_#res := valid_product_~retValue_acc~10; 4334#L683 main_#t~ret40 := valid_product_#res;main_~tmp~8 := main_#t~ret40;havoc main_#t~ret40; 4368#L630 assume 0 != main_~tmp~8; 4378#L603 ~switchedOnBeforeTS~0 := 0; 4379#L49 havoc test_#t~nondet3, test_#t~nondet4, test_#t~nondet5, test_#t~nondet6, test_~splverifierCounter~0, test_~tmp~1, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~1;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 4423#L70-1 [2019-12-07 13:00:14,218 INFO L796 eck$LassoCheckResult]: Loop: 4423#L70-1 assume !false; 4716#L109 assume test_~splverifierCounter~0 < 4; 4715#L110 test_~tmp~1 := test_#t~nondet3;havoc test_#t~nondet3; 4714#L118 assume !(0 != test_~tmp~1); 4687#L118-1 test_~tmp___0~1 := test_#t~nondet4;havoc test_#t~nondet4; 4676#L128 assume !(0 != test_~tmp___0~1); 4672#L128-1 test_~tmp___2~0 := test_#t~nondet5;havoc test_#t~nondet5; 4668#L138 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 4364#L146-1 havoc __utac_acc__Specification5_spec__2_#t~ret0;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 4345#L339 __utac_acc__Specification5_spec__2_#t~ret0 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret0;havoc __utac_acc__Specification5_spec__2_#t~ret0; 4240#L59 assume !(0 != ~pumpRunning~0); 4241#L185 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret9, processEnvironment_~tmp~4;havoc processEnvironment_~tmp~4; 4357#L269 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret8, processEnvironment__wrappee__methaneQuery_~tmp~3;havoc processEnvironment__wrappee__methaneQuery_~tmp~3; 4669#L243-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret7, processEnvironment__wrappee__highWaterSensor_~tmp~2;havoc processEnvironment__wrappee__highWaterSensor_~tmp~2; 4646#L217-3 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret28, isHighWaterLevel_~retValue_acc~2, isHighWaterLevel_~tmp~6, isHighWaterLevel_~tmp___0~2;havoc isHighWaterLevel_~retValue_acc~2;havoc isHighWaterLevel_~tmp~6;havoc isHighWaterLevel_~tmp___0~2;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~6;havoc isHighWaterSensorDry_~retValue_acc~6; 4643#L524-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~6 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~6; 4621#L529-3 isHighWaterLevel_#t~ret28 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~6 := isHighWaterLevel_#t~ret28;havoc isHighWaterLevel_#t~ret28; 4619#L388-9 assume 0 != isHighWaterLevel_~tmp~6;isHighWaterLevel_~tmp___0~2 := 0; 4617#L388-11 isHighWaterLevel_~retValue_acc~2 := isHighWaterLevel_~tmp___0~2;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~2; 4616#L394-3 processEnvironment__wrappee__highWaterSensor_#t~ret7 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~2 := processEnvironment__wrappee__highWaterSensor_#t~ret7;havoc processEnvironment__wrappee__highWaterSensor_#t~ret7; 4615#L221-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~2); 4294#L192 havoc __utac_acc__Specification5_spec__3_#t~ret1, __utac_acc__Specification5_spec__3_#t~ret2, __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~5;havoc getWaterLevel_~retValue_acc~5;getWaterLevel_~retValue_acc~5 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~5; 4439#L516 __utac_acc__Specification5_spec__3_#t~ret1 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~0 := __utac_acc__Specification5_spec__3_#t~ret1;havoc __utac_acc__Specification5_spec__3_#t~ret1; 4242#L70 assume 2 != __utac_acc__Specification5_spec__3_~tmp~0;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 4243#L339-1 __utac_acc__Specification5_spec__3_#t~ret2 := isPumpRunning_#res;__utac_acc__Specification5_spec__3_~tmp___0~0 := __utac_acc__Specification5_spec__3_#t~ret2;havoc __utac_acc__Specification5_spec__3_#t~ret2; 4349#L74 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~0); 4423#L70-1 [2019-12-07 13:00:14,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:00:14,219 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 4 times [2019-12-07 13:00:14,219 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 13:00:14,219 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896104899] [2019-12-07 13:00:14,219 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 13:00:14,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 13:00:14,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 13:00:14,272 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 13:00:14,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:00:14,272 INFO L82 PathProgramCache]: Analyzing trace with hash -212312784, now seen corresponding path program 1 times [2019-12-07 13:00:14,273 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 13:00:14,273 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90153560] [2019-12-07 13:00:14,273 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 13:00:14,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 13:00:14,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 13:00:14,284 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 13:00:14,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:00:14,285 INFO L82 PathProgramCache]: Analyzing trace with hash 2116442870, now seen corresponding path program 1 times [2019-12-07 13:00:14,285 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 13:00:14,285 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148619402] [2019-12-07 13:00:14,285 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 13:00:14,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 13:00:14,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 13:00:14,343 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 13:00:39,337 WARN L192 SmtUtils]: Spent 24.85 s on a formula simplification. DAG size of input: 456 DAG size of output: 404 [2019-12-07 13:00:51,721 WARN L192 SmtUtils]: Spent 12.38 s on a formula simplification that was a NOOP. DAG size: 402 [2019-12-07 13:00:51,775 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 07.12 01:00:51 BoogieIcfgContainer [2019-12-07 13:00:51,775 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-12-07 13:00:51,775 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 13:00:51,775 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 13:00:51,775 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 13:00:51,776 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:00:13" (3/4) ... [2019-12-07 13:00:51,778 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-12-07 13:00:51,819 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_820673de-5fe7-496e-aeae-2b2c9695a53c/bin/uautomizer/witness.graphml [2019-12-07 13:00:51,819 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 13:00:51,820 INFO L168 Benchmark]: Toolchain (without parser) took 39868.65 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 161.5 MB). Free memory was 944.8 MB in the beginning and 896.3 MB in the end (delta: 48.5 MB). Peak memory consumption was 210.0 MB. Max. memory is 11.5 GB. [2019-12-07 13:00:51,820 INFO L168 Benchmark]: CDTParser took 0.13 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 13:00:51,821 INFO L168 Benchmark]: CACSL2BoogieTranslator took 379.51 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 101.7 MB). Free memory was 939.4 MB in the beginning and 1.1 GB in the end (delta: -140.9 MB). Peak memory consumption was 19.5 MB. Max. memory is 11.5 GB. [2019-12-07 13:00:51,821 INFO L168 Benchmark]: Boogie Procedure Inliner took 74.51 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 13:00:51,821 INFO L168 Benchmark]: Boogie Preprocessor took 62.42 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 13:00:51,822 INFO L168 Benchmark]: RCFGBuilder took 609.09 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 974.6 MB in the end (delta: 94.9 MB). Peak memory consumption was 94.9 MB. Max. memory is 11.5 GB. [2019-12-07 13:00:51,822 INFO L168 Benchmark]: BuchiAutomizer took 38696.07 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 59.8 MB). Free memory was 974.6 MB in the beginning and 898.6 MB in the end (delta: 76.0 MB). Peak memory consumption was 203.5 MB. Max. memory is 11.5 GB. [2019-12-07 13:00:51,822 INFO L168 Benchmark]: Witness Printer took 44.14 ms. Allocated memory is still 1.2 GB. Free memory was 898.6 MB in the beginning and 896.3 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 11.5 GB. [2019-12-07 13:00:51,824 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 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 379.51 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 101.7 MB). Free memory was 939.4 MB in the beginning and 1.1 GB in the end (delta: -140.9 MB). Peak memory consumption was 19.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 74.51 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 62.42 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. * RCFGBuilder took 609.09 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 974.6 MB in the end (delta: 94.9 MB). Peak memory consumption was 94.9 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 38696.07 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 59.8 MB). Free memory was 974.6 MB in the beginning and 898.6 MB in the end (delta: 76.0 MB). Peak memory consumption was 203.5 MB. Max. memory is 11.5 GB. * Witness Printer took 44.14 ms. Allocated memory is still 1.2 GB. Free memory was 898.6 MB in the beginning and 896.3 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 5 locations. The remainder module has 891 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 38.6s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 38.0s. 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, 1258 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 891 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 1081 SDtfs, 1812 SDslu, 1730 SDs, 0 SdLazy, 245 SolverSat, 72 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time LassoAnalysisResults: nont1 unkn0 SFLI3 SFLT0 conc0 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: 108]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=2314} State at position 1 is {NULL=0, NULL=0, NULL=0, NULL=2314, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3e88c5d5=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@349fe8c2=53, NULL=2326, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@577da5ce=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7d988820=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2606ad0b=0, NULL=0, NULL=2331, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6f30f0ab=0, retValue_acc=1, NULL=2316, retValue_acc=0, tmp___1=0, NULL=2319, NULL=2333, cleanupTimeShifts=4, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@46824f13=0, NULL=2322, NULL=0, NULL=0, waterLevel=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@670765ba=0, NULL=2329, \result=1, head=0, pumpRunning=0, retValue_acc=1, NULL=2325, NULL=0, NULL=0, NULL=0, tmp=1, \result=1, NULL=2330, NULL=0, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@338c6aab=0, tmp___0=0, tmp=1, retValue_acc=1, NULL=2336, head=0, tmp=0, NULL=2327, NULL=0, NULL=0, NULL=0, NULL=2332, NULL=2323, tmp=0, NULL=2318, NULL=0, NULL=0, NULL=2335, retValue_acc=0, NULL=2337, NULL=2334, tmp___0=0, NULL=0, NULL=0, tmp=1, switchedOnBeforeTS=0, NULL=2321, NULL=2317, tmp=0, \result=0, NULL=0, NULL=0, NULL=0, systemActive=1, NULL=2338, \result=1, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@33e8a90b=0, tmp___0=0, \result=0, NULL=2320, NULL=0, NULL=0, NULL=2315, NULL=0, tmp___2=53, splverifierCounter=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3bd5a1d=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@48c90e9e=0, NULL=2328, retValue_acc=0, NULL=2324, NULL=0, NULL=2339} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L43] int switchedOnBeforeTS ; [L175] int pumpRunning = 0; [L176] int systemActive = 1; [L441] int waterLevel = 1; [L442] int methaneLevelCritical = 0; [L544] int cleanupTimeShifts = 4; [L857] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L621] int retValue_acc ; [L622] int tmp ; [L679] int retValue_acc ; [L682] retValue_acc = 1 [L683] return (retValue_acc); [L628] tmp = valid_product() [L630] COND TRUE \read(tmp) [L48] switchedOnBeforeTS = 0 [L99] int splverifierCounter ; [L100] int tmp ; [L101] int tmp___0 ; [L102] int tmp___1 ; [L103] int tmp___2 ; [L106] splverifierCounter = 0 Loop: [L108] COND TRUE 1 [L110] COND TRUE splverifierCounter < 4 [L116] tmp = __VERIFIER_nondet_int() [L118] COND FALSE !(\read(tmp)) [L126] tmp___0 = __VERIFIER_nondet_int() [L128] COND FALSE !(\read(tmp___0)) [L136] tmp___2 = __VERIFIER_nondet_int() [L138] COND TRUE \read(tmp___2) [L436] systemActive = 1 [L335] int retValue_acc ; [L338] retValue_acc = pumpRunning [L339] return (retValue_acc); [L57] switchedOnBeforeTS = isPumpRunning() [L185] COND FALSE !(\read(pumpRunning)) [L192] COND TRUE \read(systemActive) [L266] int tmp ; [L269] COND FALSE !(\read(pumpRunning)) [L240] int tmp ; [L243] COND FALSE !(\read(pumpRunning)) [L214] int tmp ; [L217] COND TRUE ! pumpRunning [L380] int retValue_acc ; [L381] int tmp ; [L382] int tmp___0 ; [L521] int retValue_acc ; [L524] COND TRUE waterLevel < 2 [L525] retValue_acc = 1 [L526] return (retValue_acc); [L386] tmp = isHighWaterSensorDry() [L388] COND TRUE \read(tmp) [L389] tmp___0 = 0 [L393] retValue_acc = tmp___0 [L394] return (retValue_acc); [L219] tmp = isHighWaterLevel() [L221] COND FALSE !(\read(tmp)) [L63] int tmp ; [L64] int tmp___0 ; [L512] int retValue_acc ; [L515] retValue_acc = waterLevel [L516] return (retValue_acc); [L68] tmp = getWaterLevel() [L70] COND TRUE tmp != 2 [L335] int retValue_acc ; [L338] retValue_acc = pumpRunning [L339] return (retValue_acc); [L72] tmp___0 = isPumpRunning() [L74] COND FALSE !(\read(tmp___0)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...