./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product24.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_f0939941-9f08-43e7-b2af-3ad8ba4d0c31/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_f0939941-9f08-43e7-b2af-3ad8ba4d0c31/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_f0939941-9f08-43e7-b2af-3ad8ba4d0c31/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_f0939941-9f08-43e7-b2af-3ad8ba4d0c31/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product24.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_f0939941-9f08-43e7-b2af-3ad8ba4d0c31/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_f0939941-9f08-43e7-b2af-3ad8ba4d0c31/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 e5bb50ae68610f68f43b93d5545ed6b596dfa5e8 ............................................................................................................................................................................................................................................................................................................................................................................. 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 0.2.0-a4ecdab [2020-11-29 18:54:27,140 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 18:54:27,170 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 18:54:27,253 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 18:54:27,254 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 18:54:27,260 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 18:54:27,264 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 18:54:27,269 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 18:54:27,273 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 18:54:27,280 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 18:54:27,281 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 18:54:27,284 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 18:54:27,284 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 18:54:27,289 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 18:54:27,291 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 18:54:27,293 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 18:54:27,295 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 18:54:27,300 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 18:54:27,304 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 18:54:27,314 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 18:54:27,316 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 18:54:27,318 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 18:54:27,321 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 18:54:27,322 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 18:54:27,333 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 18:54:27,334 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 18:54:27,335 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 18:54:27,338 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 18:54:27,339 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 18:54:27,340 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 18:54:27,341 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 18:54:27,343 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 18:54:27,345 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 18:54:27,347 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 18:54:27,349 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 18:54:27,349 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 18:54:27,350 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 18:54:27,351 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 18:54:27,351 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 18:54:27,353 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 18:54:27,354 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 18:54:27,357 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_f0939941-9f08-43e7-b2af-3ad8ba4d0c31/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-29 18:54:27,409 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 18:54:27,410 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 18:54:27,412 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 18:54:27,412 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 18:54:27,413 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 18:54:27,413 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-29 18:54:27,413 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-29 18:54:27,413 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-29 18:54:27,414 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-29 18:54:27,414 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-29 18:54:27,415 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-29 18:54:27,416 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 18:54:27,416 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 18:54:27,416 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 18:54:27,416 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 18:54:27,417 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 18:54:27,417 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 18:54:27,417 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-29 18:54:27,417 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-29 18:54:27,418 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-29 18:54:27,418 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 18:54:27,418 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 18:54:27,418 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-29 18:54:27,419 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 18:54:27,419 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-29 18:54:27,419 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 18:54:27,420 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 18:54:27,420 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-29 18:54:27,420 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 18:54:27,422 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 18:54:27,422 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 18:54:27,423 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-29 18:54:27,424 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-29 18:54:27,424 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_f0939941-9f08-43e7-b2af-3ad8ba4d0c31/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_f0939941-9f08-43e7-b2af-3ad8ba4d0c31/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e5bb50ae68610f68f43b93d5545ed6b596dfa5e8 [2020-11-29 18:54:27,731 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 18:54:27,777 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 18:54:27,783 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 18:54:27,785 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 18:54:27,786 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 18:54:27,787 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_f0939941-9f08-43e7-b2af-3ad8ba4d0c31/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec2_product24.cil.c [2020-11-29 18:54:27,871 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f0939941-9f08-43e7-b2af-3ad8ba4d0c31/bin/uautomizer/data/7051c8272/2569cbc3922444bc83cb5f288593bf65/FLAG8fefbd158 [2020-11-29 18:54:28,463 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 18:54:28,464 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_f0939941-9f08-43e7-b2af-3ad8ba4d0c31/sv-benchmarks/c/product-lines/minepump_spec2_product24.cil.c [2020-11-29 18:54:28,482 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f0939941-9f08-43e7-b2af-3ad8ba4d0c31/bin/uautomizer/data/7051c8272/2569cbc3922444bc83cb5f288593bf65/FLAG8fefbd158 [2020-11-29 18:54:28,751 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_f0939941-9f08-43e7-b2af-3ad8ba4d0c31/bin/uautomizer/data/7051c8272/2569cbc3922444bc83cb5f288593bf65 [2020-11-29 18:54:28,754 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 18:54:28,756 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 18:54:28,758 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 18:54:28,758 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 18:54:28,762 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 18:54:28,763 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:54:28" (1/1) ... [2020-11-29 18:54:28,766 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30cec043 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:54:28, skipping insertion in model container [2020-11-29 18:54:28,766 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:54:28" (1/1) ... [2020-11-29 18:54:28,775 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 18:54:28,871 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 18:54:29,263 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 18:54:29,293 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 18:54:29,392 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 18:54:29,455 INFO L208 MainTranslator]: Completed translation [2020-11-29 18:54:29,456 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:54:29 WrapperNode [2020-11-29 18:54:29,459 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 18:54:29,463 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 18:54:29,463 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 18:54:29,463 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 18:54:29,474 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:54:29" (1/1) ... [2020-11-29 18:54:29,516 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:54:29" (1/1) ... [2020-11-29 18:54:29,567 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 18:54:29,568 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 18:54:29,569 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 18:54:29,569 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 18:54:29,581 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:54:29" (1/1) ... [2020-11-29 18:54:29,581 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:54:29" (1/1) ... [2020-11-29 18:54:29,588 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:54:29" (1/1) ... [2020-11-29 18:54:29,588 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:54:29" (1/1) ... [2020-11-29 18:54:29,603 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:54:29" (1/1) ... [2020-11-29 18:54:29,623 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:54:29" (1/1) ... [2020-11-29 18:54:29,626 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:54:29" (1/1) ... [2020-11-29 18:54:29,636 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 18:54:29,644 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 18:54:29,644 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 18:54:29,645 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 18:54:29,646 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:54:29" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f0939941-9f08-43e7-b2af-3ad8ba4d0c31/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 [2020-11-29 18:54:29,747 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 18:54:29,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 18:54:29,751 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 18:54:29,752 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 18:54:31,045 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 18:54:31,047 INFO L298 CfgBuilder]: Removed 170 assume(true) statements. [2020-11-29 18:54:31,050 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:54:31 BoogieIcfgContainer [2020-11-29 18:54:31,050 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 18:54:31,052 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-29 18:54:31,052 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-29 18:54:31,056 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-29 18:54:31,057 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 18:54:31,058 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 06:54:28" (1/3) ... [2020-11-29 18:54:31,059 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@766758f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 06:54:31, skipping insertion in model container [2020-11-29 18:54:31,059 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 18:54:31,060 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:54:29" (2/3) ... [2020-11-29 18:54:31,061 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@766758f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 06:54:31, skipping insertion in model container [2020-11-29 18:54:31,061 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 18:54:31,061 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:54:31" (3/3) ... [2020-11-29 18:54:31,064 INFO L373 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product24.cil.c [2020-11-29 18:54:31,138 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-29 18:54:31,139 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-29 18:54:31,139 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-29 18:54:31,139 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 18:54:31,139 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 18:54:31,139 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-29 18:54:31,139 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 18:54:31,140 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-29 18:54:31,158 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 111 states. [2020-11-29 18:54:31,214 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 71 [2020-11-29 18:54:31,215 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 18:54:31,215 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 18:54:31,226 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:54:31,233 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:54:31,234 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-29 18:54:31,234 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 111 states. [2020-11-29 18:54:31,244 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 71 [2020-11-29 18:54:31,244 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 18:54:31,244 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 18:54:31,246 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:54:31,246 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:54:31,252 INFO L794 eck$LassoCheckResult]: Stem: 82#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(13);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string13.base, #t~string13.offset, 1);call write~init~int(110, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 2 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(102, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(102, #t~string15.base, 2 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 3 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string17.base, #t~string17.offset, 1);call write~init~int(80, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(117, #t~string17.base, 2 + #t~string17.offset, 1);call write~init~int(109, #t~string17.base, 3 + #t~string17.offset, 1);call write~init~int(112, #t~string17.base, 4 + #t~string17.offset, 1);call write~init~int(58, #t~string17.base, 5 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 6 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(110, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 2 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string21.base, #t~string21.offset, 1);call write~init~int(102, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(102, #t~string21.base, 2 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 3 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string23.base, #t~string23.offset, 1);call write~init~int(32, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 2 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string25.base, #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 1 + #t~string25.offset, 1);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(30);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(9);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(21);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(30);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(9);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(21);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(30);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(9);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(25);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(30);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(9);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(25);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(13);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string73.base, #t~string73.offset, 1);call write~init~int(77, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(101, #t~string73.base, 2 + #t~string73.offset, 1);call write~init~int(116, #t~string73.base, 3 + #t~string73.offset, 1);call write~init~int(104, #t~string73.base, 4 + #t~string73.offset, 1);call write~init~int(58, #t~string73.base, 5 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 6 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string75.base, #t~string75.offset, 1);call write~init~int(82, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(73, #t~string75.base, 2 + #t~string75.offset, 1);call write~init~int(84, #t~string75.base, 3 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 4 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string77.base, #t~string77.offset, 1);call write~init~int(75, #t~string77.base, 1 + #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 2 + #t~string77.offset, 1);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string79.base, #t~string79.offset, 1);call write~init~int(0, #t~string79.base, 1 + #t~string79.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 5#L-1true havoc main_#res;havoc main_#t~ret67, main_~retValue_acc~8, main_~tmp~7;havoc main_~retValue_acc~8;havoc main_~tmp~7; 87#L718true havoc valid_product_#res;havoc valid_product_~retValue_acc~7;havoc valid_product_~retValue_acc~7;valid_product_~retValue_acc~7 := 1;valid_product_#res := valid_product_~retValue_acc~7; 105#L726true main_#t~ret67 := valid_product_#res;main_~tmp~7 := main_#t~ret67;havoc main_#t~ret67; 72#L815true assume 0 != main_~tmp~7; 76#L790true ~methAndRunningLastTime~0 := 0; 99#L836true havoc test_#t~nondet27, test_#t~nondet28, test_#t~nondet29, test_#t~nondet30, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 101#L847-1true [2020-11-29 18:54:31,253 INFO L796 eck$LassoCheckResult]: Loop: 101#L847-1true assume !false; 109#L269true assume test_~splverifierCounter~0 < 4; 71#L270true test_~tmp~3 := test_#t~nondet27;havoc test_#t~nondet27; 83#L278true assume !(0 != test_~tmp~3); 80#L278-1true test_~tmp___0~1 := test_#t~nondet28;havoc test_#t~nondet28; 9#L288true assume !(0 != test_~tmp___0~1); 6#L288-1true test_~tmp___2~0 := test_#t~nondet29;havoc test_#t~nondet29; 47#L298true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 61#L306-1true assume !(0 != ~pumpRunning~0); 45#L61true assume !(0 != ~systemActive~0); 112#L68true havoc __utac_acc__Specification2_spec__2_#t~ret68, __utac_acc__Specification2_spec__2_#t~ret69, __utac_acc__Specification2_spec__2_~tmp~8, __utac_acc__Specification2_spec__2_~tmp___0~2;havoc __utac_acc__Specification2_spec__2_~tmp~8;havoc __utac_acc__Specification2_spec__2_~tmp___0~2;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~9;havoc isMethaneLevelCritical_~retValue_acc~9;isMethaneLevelCritical_~retValue_acc~9 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~9; 73#L922-1true __utac_acc__Specification2_spec__2_#t~ret68 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~8 := __utac_acc__Specification2_spec__2_#t~ret68;havoc __utac_acc__Specification2_spec__2_#t~ret68; 113#L847true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~8);~methAndRunningLastTime~0 := 0; 101#L847-1true [2020-11-29 18:54:31,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:54:31,262 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2020-11-29 18:54:31,274 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:54:31,274 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198980268] [2020-11-29 18:54:31,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:54:31,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:54:31,583 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:54:31,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:54:31,777 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:54:31,836 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:54:31,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:54:31,850 INFO L82 PathProgramCache]: Analyzing trace with hash 13527574, now seen corresponding path program 1 times [2020-11-29 18:54:31,850 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:54:31,851 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2045167227] [2020-11-29 18:54:31,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:54:31,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:54:31,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:54:31,931 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2045167227] [2020-11-29 18:54:31,932 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:54:31,932 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 18:54:31,933 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061655004] [2020-11-29 18:54:31,939 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-29 18:54:31,941 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:54:31,960 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 18:54:31,962 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 18:54:31,964 INFO L87 Difference]: Start difference. First operand 111 states. Second operand 3 states. [2020-11-29 18:54:32,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:54:32,091 INFO L93 Difference]: Finished difference Result 209 states and 301 transitions. [2020-11-29 18:54:32,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 18:54:32,097 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 209 states and 301 transitions. [2020-11-29 18:54:32,116 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 134 [2020-11-29 18:54:32,131 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 209 states to 195 states and 286 transitions. [2020-11-29 18:54:32,132 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 195 [2020-11-29 18:54:32,139 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 195 [2020-11-29 18:54:32,140 INFO L73 IsDeterministic]: Start isDeterministic. Operand 195 states and 286 transitions. [2020-11-29 18:54:32,144 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 18:54:32,144 INFO L691 BuchiCegarLoop]: Abstraction has 195 states and 286 transitions. [2020-11-29 18:54:32,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states and 286 transitions. [2020-11-29 18:54:32,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 193. [2020-11-29 18:54:32,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 193 states. [2020-11-29 18:54:32,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 283 transitions. [2020-11-29 18:54:32,230 INFO L714 BuchiCegarLoop]: Abstraction has 193 states and 283 transitions. [2020-11-29 18:54:32,231 INFO L594 BuchiCegarLoop]: Abstraction has 193 states and 283 transitions. [2020-11-29 18:54:32,231 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-29 18:54:32,231 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 193 states and 283 transitions. [2020-11-29 18:54:32,247 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 132 [2020-11-29 18:54:32,248 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 18:54:32,248 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 18:54:32,249 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:54:32,250 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:54:32,251 INFO L794 eck$LassoCheckResult]: Stem: 424#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(13);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string13.base, #t~string13.offset, 1);call write~init~int(110, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 2 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(102, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(102, #t~string15.base, 2 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 3 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string17.base, #t~string17.offset, 1);call write~init~int(80, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(117, #t~string17.base, 2 + #t~string17.offset, 1);call write~init~int(109, #t~string17.base, 3 + #t~string17.offset, 1);call write~init~int(112, #t~string17.base, 4 + #t~string17.offset, 1);call write~init~int(58, #t~string17.base, 5 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 6 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(110, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 2 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string21.base, #t~string21.offset, 1);call write~init~int(102, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(102, #t~string21.base, 2 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 3 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string23.base, #t~string23.offset, 1);call write~init~int(32, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 2 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string25.base, #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 1 + #t~string25.offset, 1);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(30);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(9);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(21);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(30);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(9);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(21);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(30);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(9);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(25);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(30);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(9);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(25);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(13);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string73.base, #t~string73.offset, 1);call write~init~int(77, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(101, #t~string73.base, 2 + #t~string73.offset, 1);call write~init~int(116, #t~string73.base, 3 + #t~string73.offset, 1);call write~init~int(104, #t~string73.base, 4 + #t~string73.offset, 1);call write~init~int(58, #t~string73.base, 5 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 6 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string75.base, #t~string75.offset, 1);call write~init~int(82, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(73, #t~string75.base, 2 + #t~string75.offset, 1);call write~init~int(84, #t~string75.base, 3 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 4 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string77.base, #t~string77.offset, 1);call write~init~int(75, #t~string77.base, 1 + #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 2 + #t~string77.offset, 1);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string79.base, #t~string79.offset, 1);call write~init~int(0, #t~string79.base, 1 + #t~string79.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 333#L-1 havoc main_#res;havoc main_#t~ret67, main_~retValue_acc~8, main_~tmp~7;havoc main_~retValue_acc~8;havoc main_~tmp~7; 334#L718 havoc valid_product_#res;havoc valid_product_~retValue_acc~7;havoc valid_product_~retValue_acc~7;valid_product_~retValue_acc~7 := 1;valid_product_#res := valid_product_~retValue_acc~7; 427#L726 main_#t~ret67 := valid_product_#res;main_~tmp~7 := main_#t~ret67;havoc main_#t~ret67; 412#L815 assume 0 != main_~tmp~7; 413#L790 ~methAndRunningLastTime~0 := 0; 418#L836 havoc test_#t~nondet27, test_#t~nondet28, test_#t~nondet29, test_#t~nondet30, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 435#L847-1 [2020-11-29 18:54:32,253 INFO L796 eck$LassoCheckResult]: Loop: 435#L847-1 assume !false; 436#L269 assume test_~splverifierCounter~0 < 4; 437#L270 test_~tmp~3 := test_#t~nondet27;havoc test_#t~nondet27; 469#L278 assume !(0 != test_~tmp~3); 467#L278-1 test_~tmp___0~1 := test_#t~nondet28;havoc test_#t~nondet28; 466#L288 assume !(0 != test_~tmp___0~1); 464#L288-1 test_~tmp___2~0 := test_#t~nondet29;havoc test_#t~nondet29; 463#L298 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 394#L306-1 assume !(0 != ~pumpRunning~0); 460#L61 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret8, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 459#L119 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__lowWaterSensor_#t~ret7, processEnvironment__wrappee__lowWaterSensor_~tmp~0;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~0; 448#L93-1 assume !(0 != ~pumpRunning~0); 446#L68 havoc __utac_acc__Specification2_spec__2_#t~ret68, __utac_acc__Specification2_spec__2_#t~ret69, __utac_acc__Specification2_spec__2_~tmp~8, __utac_acc__Specification2_spec__2_~tmp___0~2;havoc __utac_acc__Specification2_spec__2_~tmp~8;havoc __utac_acc__Specification2_spec__2_~tmp___0~2;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~9;havoc isMethaneLevelCritical_~retValue_acc~9;isMethaneLevelCritical_~retValue_acc~9 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~9; 414#L922-1 __utac_acc__Specification2_spec__2_#t~ret68 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~8 := __utac_acc__Specification2_spec__2_#t~ret68;havoc __utac_acc__Specification2_spec__2_#t~ret68; 415#L847 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~8);~methAndRunningLastTime~0 := 0; 435#L847-1 [2020-11-29 18:54:32,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:54:32,261 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2020-11-29 18:54:32,261 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:54:32,261 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007050702] [2020-11-29 18:54:32,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:54:32,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:54:32,399 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:54:32,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:54:32,525 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:54:32,569 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:54:32,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:54:32,570 INFO L82 PathProgramCache]: Analyzing trace with hash -2034283736, now seen corresponding path program 1 times [2020-11-29 18:54:32,570 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:54:32,571 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226597621] [2020-11-29 18:54:32,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:54:32,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:54:32,605 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:54:32,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:54:32,610 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:54:32,615 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:54:32,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:54:32,616 INFO L82 PathProgramCache]: Analyzing trace with hash -100258526, now seen corresponding path program 1 times [2020-11-29 18:54:32,616 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:54:32,617 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267511748] [2020-11-29 18:54:32,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:54:32,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:54:32,706 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:54:32,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:54:32,761 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:54:32,781 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:56:23,796 WARN L193 SmtUtils]: Spent 1.85 m on a formula simplification. DAG size of input: 495 DAG size of output: 437 [2020-11-29 18:57:39,713 WARN L193 SmtUtils]: Spent 1.26 m on a formula simplification that was a NOOP. DAG size: 435 [2020-11-29 18:57:40,042 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 06:57:40 BoogieIcfgContainer [2020-11-29 18:57:40,042 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-29 18:57:40,043 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 18:57:40,044 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 18:57:40,044 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 18:57:40,045 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:54:31" (3/4) ... [2020-11-29 18:57:40,048 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-11-29 18:57:40,104 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_f0939941-9f08-43e7-b2af-3ad8ba4d0c31/bin/uautomizer/witness.graphml [2020-11-29 18:57:40,104 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 18:57:40,106 INFO L168 Benchmark]: Toolchain (without parser) took 191349.79 ms. Allocated memory was 90.2 MB in the beginning and 140.5 MB in the end (delta: 50.3 MB). Free memory was 51.4 MB in the beginning and 44.7 MB in the end (delta: 6.7 MB). Peak memory consumption was 57.0 MB. Max. memory is 16.1 GB. [2020-11-29 18:57:40,107 INFO L168 Benchmark]: CDTParser took 0.98 ms. Allocated memory is still 90.2 MB. Free memory was 68.9 MB in the beginning and 68.8 MB in the end (delta: 77.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 18:57:40,108 INFO L168 Benchmark]: CACSL2BoogieTranslator took 702.03 ms. Allocated memory is still 90.2 MB. Free memory was 51.2 MB in the beginning and 56.2 MB in the end (delta: -5.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 18:57:40,108 INFO L168 Benchmark]: Boogie Procedure Inliner took 104.96 ms. Allocated memory is still 90.2 MB. Free memory was 56.2 MB in the beginning and 52.8 MB in the end (delta: 3.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 18:57:40,109 INFO L168 Benchmark]: Boogie Preprocessor took 74.74 ms. Allocated memory is still 90.2 MB. Free memory was 52.4 MB in the beginning and 50.0 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 18:57:40,110 INFO L168 Benchmark]: RCFGBuilder took 1406.53 ms. Allocated memory was 90.2 MB in the beginning and 115.3 MB in the end (delta: 25.2 MB). Free memory was 50.0 MB in the beginning and 48.9 MB in the end (delta: 1.1 MB). Peak memory consumption was 28.1 MB. Max. memory is 16.1 GB. [2020-11-29 18:57:40,111 INFO L168 Benchmark]: BuchiAutomizer took 188990.69 ms. Allocated memory was 115.3 MB in the beginning and 140.5 MB in the end (delta: 25.2 MB). Free memory was 48.9 MB in the beginning and 47.7 MB in the end (delta: 1.2 MB). Peak memory consumption was 51.8 MB. Max. memory is 16.1 GB. [2020-11-29 18:57:40,111 INFO L168 Benchmark]: Witness Printer took 61.01 ms. Allocated memory is still 140.5 MB. Free memory was 47.7 MB in the beginning and 44.7 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 18:57:40,115 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.98 ms. Allocated memory is still 90.2 MB. Free memory was 68.9 MB in the beginning and 68.8 MB in the end (delta: 77.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 702.03 ms. Allocated memory is still 90.2 MB. Free memory was 51.2 MB in the beginning and 56.2 MB in the end (delta: -5.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 104.96 ms. Allocated memory is still 90.2 MB. Free memory was 56.2 MB in the beginning and 52.8 MB in the end (delta: 3.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 74.74 ms. Allocated memory is still 90.2 MB. Free memory was 52.4 MB in the beginning and 50.0 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1406.53 ms. Allocated memory was 90.2 MB in the beginning and 115.3 MB in the end (delta: 25.2 MB). Free memory was 50.0 MB in the beginning and 48.9 MB in the end (delta: 1.1 MB). Peak memory consumption was 28.1 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 188990.69 ms. Allocated memory was 115.3 MB in the beginning and 140.5 MB in the end (delta: 25.2 MB). Free memory was 48.9 MB in the beginning and 47.7 MB in the end (delta: 1.2 MB). Peak memory consumption was 51.8 MB. Max. memory is 16.1 GB. * Witness Printer took 61.01 ms. Allocated memory is still 140.5 MB. Free memory was 47.7 MB in the beginning and 44.7 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (1 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.1 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 193 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 188.8s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 188.4s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 193 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 153 SDtfs, 149 SDslu, 140 SDs, 0 SdLazy, 10 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont1 unkn0 SFLI1 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: 268]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=30920} State at position 1 is {NULL=30924, NULL=0, NULL=0, NULL=0, NULL=30920, NULL=30948, NULL=0, NULL=0, NULL=30936, retValue_acc=0, NULL=30946, tmp=0, NULL=30931, methaneLevelCritical=0, tmp=0, tmp___1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1fbcf1d0=0, NULL=30944, NULL=0, NULL=0, cleanupTimeShifts=4, NULL=30925, NULL=30921, NULL=30927, NULL=30939, NULL=0, NULL=0, NULL=0, NULL=0, systemActive=1, waterLevel=1, NULL=30932, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5b3659aa=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=30940, NULL=0, NULL=0, NULL=30938, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4ef84f3b=0, \result=1, head=0, pumpRunning=0, NULL=30922, \result=0, NULL=30935, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2eb5ecaf=71, NULL=30923, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@a839a1d=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3e159a5=0, NULL=0, NULL=0, tmp=1, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7a61a5e0=0, NULL=30930, NULL=0, retValue_acc=1, NULL=0, NULL=0, NULL=30928, NULL=30947, NULL=0, NULL=30934, tmp___2=71, NULL=0, tmp___0=0, tmp___0=0, splverifierCounter=0, NULL=0, NULL=0, methAndRunningLastTime=0, \result=0, NULL=30945, NULL=30937, NULL=30933, tmp=0, head=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@8c11736=0, NULL=30941, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@364ad371=0, NULL=0, NULL=0, NULL=30943, NULL=30926, NULL=30929, NULL=30942, tmp=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L53] int pumpRunning = 0; [L54] int systemActive = 1; [L496] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L731] int cleanupTimeShifts = 4; [L830] int methAndRunningLastTime ; [L879] int waterLevel = 1; [L880] int methaneLevelCritical = 0; [L806] int retValue_acc ; [L807] int tmp ; [L722] int retValue_acc ; [L725] retValue_acc = 1 [L726] return (retValue_acc); [L813] tmp = valid_product() [L815] COND TRUE \read(tmp) [L835] methAndRunningLastTime = 0 [L259] int splverifierCounter ; [L260] int tmp ; [L261] int tmp___0 ; [L262] int tmp___1 ; [L263] int tmp___2 ; [L266] splverifierCounter = 0 Loop: [L268] COND TRUE 1 [L270] COND TRUE splverifierCounter < 4 [L276] tmp = __VERIFIER_nondet_int() [L278] COND FALSE !(\read(tmp)) [L286] tmp___0 = __VERIFIER_nondet_int() [L288] COND FALSE !(\read(tmp___0)) [L296] tmp___2 = __VERIFIER_nondet_int() [L298] COND TRUE \read(tmp___2) [L250] systemActive = 1 [L61] COND FALSE !(\read(pumpRunning)) [L68] COND TRUE \read(systemActive) [L116] int tmp ; [L119] COND FALSE !(\read(pumpRunning)) [L90] int tmp ; [L93] COND FALSE !(\read(pumpRunning)) [L840] int tmp ; [L841] int tmp___0 ; [L918] int retValue_acc ; [L921] retValue_acc = methaneLevelCritical [L922] return (retValue_acc); [L845] tmp = isMethaneLevelCritical() [L847] COND FALSE !(\read(tmp)) [L863] methAndRunningLastTime = 0 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...