./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product50.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 9ad7fb26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d2d063c-32ad-43e8-bf97-5aba9385242b/bin/uautomizer-tBqnrhUYjU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d2d063c-32ad-43e8-bf97-5aba9385242b/bin/uautomizer-tBqnrhUYjU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d2d063c-32ad-43e8-bf97-5aba9385242b/bin/uautomizer-tBqnrhUYjU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d2d063c-32ad-43e8-bf97-5aba9385242b/bin/uautomizer-tBqnrhUYjU/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product50.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d2d063c-32ad-43e8-bf97-5aba9385242b/bin/uautomizer-tBqnrhUYjU/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d2d063c-32ad-43e8-bf97-5aba9385242b/bin/uautomizer-tBqnrhUYjU --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 7291fd5b9449f17989061ec30bdd7b74e8732c40c8095270267a47672f4a66be --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-02 22:19:47,144 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-02 22:19:47,148 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-02 22:19:47,212 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-02 22:19:47,213 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-02 22:19:47,218 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-02 22:19:47,220 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-02 22:19:47,225 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-02 22:19:47,228 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-02 22:19:47,234 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-02 22:19:47,236 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-02 22:19:47,238 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-02 22:19:47,238 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-02 22:19:47,241 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-02 22:19:47,244 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-02 22:19:47,249 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-02 22:19:47,251 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-02 22:19:47,252 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-02 22:19:47,255 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-02 22:19:47,264 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-02 22:19:47,266 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-02 22:19:47,268 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-02 22:19:47,272 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-02 22:19:47,273 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-02 22:19:47,283 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-02 22:19:47,284 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-02 22:19:47,284 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-02 22:19:47,287 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-02 22:19:47,287 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-02 22:19:47,289 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-02 22:19:47,289 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-02 22:19:47,290 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-02 22:19:47,293 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-02 22:19:47,294 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-02 22:19:47,296 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-02 22:19:47,296 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-02 22:19:47,297 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-02 22:19:47,297 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-02 22:19:47,297 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-02 22:19:47,298 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-02 22:19:47,299 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-02 22:19:47,300 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d2d063c-32ad-43e8-bf97-5aba9385242b/bin/uautomizer-tBqnrhUYjU/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-11-02 22:19:47,350 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-02 22:19:47,350 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-02 22:19:47,351 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-02 22:19:47,351 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-02 22:19:47,353 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-02 22:19:47,353 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-02 22:19:47,353 INFO L138 SettingsManager]: * Use SBE=true [2021-11-02 22:19:47,354 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-11-02 22:19:47,354 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-11-02 22:19:47,354 INFO L138 SettingsManager]: * Use old map elimination=false [2021-11-02 22:19:47,355 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-11-02 22:19:47,355 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-11-02 22:19:47,356 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-11-02 22:19:47,356 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-02 22:19:47,356 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-02 22:19:47,356 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-02 22:19:47,356 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-02 22:19:47,357 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-02 22:19:47,357 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-02 22:19:47,357 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-11-02 22:19:47,357 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-11-02 22:19:47,358 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-11-02 22:19:47,358 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-02 22:19:47,358 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-02 22:19:47,358 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-11-02 22:19:47,358 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-02 22:19:47,359 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-11-02 22:19:47,359 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-02 22:19:47,359 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-02 22:19:47,359 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-02 22:19:47,360 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-02 22:19:47,360 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-02 22:19:47,362 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-11-02 22:19:47,362 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_worker_vcloud-master_on_vcloud-master/run_dir_8d2d063c-32ad-43e8-bf97-5aba9385242b/bin/uautomizer-tBqnrhUYjU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d2d063c-32ad-43e8-bf97-5aba9385242b/bin/uautomizer-tBqnrhUYjU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7291fd5b9449f17989061ec30bdd7b74e8732c40c8095270267a47672f4a66be [2021-11-02 22:19:47,653 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-02 22:19:47,676 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-02 22:19:47,679 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-02 22:19:47,680 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-02 22:19:47,681 INFO L275 PluginConnector]: CDTParser initialized [2021-11-02 22:19:47,683 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d2d063c-32ad-43e8-bf97-5aba9385242b/bin/uautomizer-tBqnrhUYjU/../../sv-benchmarks/c/product-lines/minepump_spec1_product50.cil.c [2021-11-02 22:19:47,768 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d2d063c-32ad-43e8-bf97-5aba9385242b/bin/uautomizer-tBqnrhUYjU/data/8abee3a04/7d35f37e5bd2496cbe59b2c19419d60a/FLAG11a0a6a43 [2021-11-02 22:19:48,311 INFO L306 CDTParser]: Found 1 translation units. [2021-11-02 22:19:48,312 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d2d063c-32ad-43e8-bf97-5aba9385242b/sv-benchmarks/c/product-lines/minepump_spec1_product50.cil.c [2021-11-02 22:19:48,341 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d2d063c-32ad-43e8-bf97-5aba9385242b/bin/uautomizer-tBqnrhUYjU/data/8abee3a04/7d35f37e5bd2496cbe59b2c19419d60a/FLAG11a0a6a43 [2021-11-02 22:19:48,624 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d2d063c-32ad-43e8-bf97-5aba9385242b/bin/uautomizer-tBqnrhUYjU/data/8abee3a04/7d35f37e5bd2496cbe59b2c19419d60a [2021-11-02 22:19:48,627 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-02 22:19:48,628 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-02 22:19:48,630 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-02 22:19:48,631 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-02 22:19:48,646 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-02 22:19:48,647 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 10:19:48" (1/1) ... [2021-11-02 22:19:48,648 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ed624a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:19:48, skipping insertion in model container [2021-11-02 22:19:48,648 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 10:19:48" (1/1) ... [2021-11-02 22:19:48,658 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-02 22:19:48,739 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-02 22:19:49,069 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d2d063c-32ad-43e8-bf97-5aba9385242b/sv-benchmarks/c/product-lines/minepump_spec1_product50.cil.c[6254,6267] [2021-11-02 22:19:49,191 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-02 22:19:49,207 INFO L203 MainTranslator]: Completed pre-run [2021-11-02 22:19:49,256 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d2d063c-32ad-43e8-bf97-5aba9385242b/sv-benchmarks/c/product-lines/minepump_spec1_product50.cil.c[6254,6267] [2021-11-02 22:19:49,345 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-02 22:19:49,367 INFO L208 MainTranslator]: Completed translation [2021-11-02 22:19:49,368 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:19:49 WrapperNode [2021-11-02 22:19:49,368 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-02 22:19:49,369 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-02 22:19:49,369 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-02 22:19:49,370 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-02 22:19:49,378 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:19:49" (1/1) ... [2021-11-02 22:19:49,396 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:19:49" (1/1) ... [2021-11-02 22:19:49,436 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-02 22:19:49,440 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-02 22:19:49,440 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-02 22:19:49,441 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-02 22:19:49,450 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:19:49" (1/1) ... [2021-11-02 22:19:49,450 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:19:49" (1/1) ... [2021-11-02 22:19:49,471 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:19:49" (1/1) ... [2021-11-02 22:19:49,484 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:19:49" (1/1) ... [2021-11-02 22:19:49,496 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:19:49" (1/1) ... [2021-11-02 22:19:49,514 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:19:49" (1/1) ... [2021-11-02 22:19:49,527 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:19:49" (1/1) ... [2021-11-02 22:19:49,532 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-02 22:19:49,533 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-02 22:19:49,533 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-02 22:19:49,533 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-02 22:19:49,534 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:19:49" (1/1) ... [2021-11-02 22:19:49,542 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:19:49,555 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d2d063c-32ad-43e8-bf97-5aba9385242b/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:19:49,568 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d2d063c-32ad-43e8-bf97-5aba9385242b/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:19:49,587 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d2d063c-32ad-43e8-bf97-5aba9385242b/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-11-02 22:19:49,620 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-02 22:19:49,621 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-02 22:19:49,621 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-02 22:19:49,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-02 22:19:50,517 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-02 22:19:50,518 INFO L299 CfgBuilder]: Removed 158 assume(true) statements. [2021-11-02 22:19:50,520 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 10:19:50 BoogieIcfgContainer [2021-11-02 22:19:50,520 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-02 22:19:50,521 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-11-02 22:19:50,522 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-11-02 22:19:50,525 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-11-02 22:19:50,526 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-02 22:19:50,526 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 02.11 10:19:48" (1/3) ... [2021-11-02 22:19:50,528 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3c708bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.11 10:19:50, skipping insertion in model container [2021-11-02 22:19:50,528 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-02 22:19:50,528 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:19:49" (2/3) ... [2021-11-02 22:19:50,528 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3c708bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.11 10:19:50, skipping insertion in model container [2021-11-02 22:19:50,529 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-02 22:19:50,529 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 10:19:50" (3/3) ... [2021-11-02 22:19:50,530 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec1_product50.cil.c [2021-11-02 22:19:50,580 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-11-02 22:19:50,581 INFO L360 BuchiCegarLoop]: Hoare is false [2021-11-02 22:19:50,581 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-11-02 22:19:50,581 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-11-02 22:19:50,581 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-11-02 22:19:50,582 INFO L364 BuchiCegarLoop]: Difference is false [2021-11-02 22:19:50,582 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-11-02 22:19:50,582 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-11-02 22:19:50,602 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 114 states, 113 states have (on average 1.5398230088495575) internal successors, (174), 113 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:19:50,631 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 73 [2021-11-02 22:19:50,631 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-02 22:19:50,632 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-02 22:19:50,640 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-11-02 22:19:50,640 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:19:50,640 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-11-02 22:19:50,641 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 114 states, 113 states have (on average 1.5398230088495575) internal successors, (174), 113 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:19:50,649 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 73 [2021-11-02 22:19:50,649 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-02 22:19:50,650 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-02 22:19:50,651 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-11-02 22:19:50,651 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:19:50,657 INFO L791 eck$LassoCheckResult]: Stem: 106#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~string10.base, #t~string10.offset := #Ultimate.allocOnStack(13);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string12.base, #t~string12.offset, 1);call write~init~int(77, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(101, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(116, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(104, #t~string12.base, 4 + #t~string12.offset, 1);call write~init~int(58, #t~string12.base, 5 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 6 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string14.base, #t~string14.offset, 1);call write~init~int(82, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(73, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(84, #t~string14.base, 3 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 4 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(75, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 2 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string18.base, #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 1 + #t~string18.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(13);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string31.base, #t~string31.offset, 1);call write~init~int(110, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 2 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string33.base, #t~string33.offset, 1);call write~init~int(102, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(102, #t~string33.base, 2 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 3 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string35.base, #t~string35.offset, 1);call write~init~int(80, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(117, #t~string35.base, 2 + #t~string35.offset, 1);call write~init~int(109, #t~string35.base, 3 + #t~string35.offset, 1);call write~init~int(112, #t~string35.base, 4 + #t~string35.offset, 1);call write~init~int(58, #t~string35.base, 5 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 6 + #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(110, #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(4);call write~init~int(79, #t~string39.base, #t~string39.offset, 1);call write~init~int(102, #t~string39.base, 1 + #t~string39.offset, 1);call write~init~int(102, #t~string39.base, 2 + #t~string39.offset, 1);call write~init~int(0, #t~string39.base, 3 + #t~string39.offset, 1);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string41.base, #t~string41.offset, 1);call write~init~int(32, #t~string41.base, 1 + #t~string41.offset, 1);call write~init~int(0, #t~string41.base, 2 + #t~string41.offset, 1);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string43.base, #t~string43.offset, 1);call write~init~int(0, #t~string43.base, 1 + #t~string43.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(21);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(30);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(9);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(21);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(30);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(9);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(25);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(30);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(9);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 37#L-1true havoc main_#res;havoc main_#t~ret19, main_~retValue_acc~4, main_~tmp~1;havoc main_~retValue_acc~4;havoc main_~tmp~1; 25#L313true havoc valid_product_#res;havoc valid_product_~retValue_acc~6;havoc valid_product_~retValue_acc~6;valid_product_~retValue_acc~6 := 1;valid_product_#res := valid_product_~retValue_acc~6; 61#L321true main_#t~ret19 := valid_product_#res;main_~tmp~1 := main_#t~ret19;havoc main_#t~ret19; 113#L277true assume 0 != main_~tmp~1; 79#L250true havoc test_#t~nondet21, test_#t~nondet22, test_#t~nondet23, test_#t~nondet24, test_~splverifierCounter~0, test_~tmp~2, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~2;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 91#L61-1true [2021-11-02 22:19:50,658 INFO L793 eck$LassoCheckResult]: Loop: 91#L61-1true assume !false; 47#L338true assume test_~splverifierCounter~0 < 4; 114#L339true test_~tmp~2 := test_#t~nondet21;havoc test_#t~nondet21; 99#L347true assume !(0 != test_~tmp~2); 109#L347-1true test_~tmp___0~1 := test_#t~nondet22;havoc test_#t~nondet22; 54#L357true assume !(0 != test_~tmp___0~1); 85#L357-1true test_~tmp___2~0 := test_#t~nondet23;havoc test_#t~nondet23; 15#L367true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 39#L375-2true assume !(0 != ~pumpRunning~0); 56#L412true assume !(0 != ~systemActive~0); 4#L419true havoc __utac_acc__Specification1_spec__1_#t~ret7, __utac_acc__Specification1_spec__1_#t~ret8, __utac_acc__Specification1_spec__1_~tmp~0, __utac_acc__Specification1_spec__1_~tmp___0~0;havoc __utac_acc__Specification1_spec__1_~tmp~0;havoc __utac_acc__Specification1_spec__1_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 96#L129true __utac_acc__Specification1_spec__1_#t~ret7 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~0 := __utac_acc__Specification1_spec__1_#t~ret7;havoc __utac_acc__Specification1_spec__1_#t~ret7; 64#L61true assume !(0 != __utac_acc__Specification1_spec__1_~tmp~0); 91#L61-1true [2021-11-02 22:19:50,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:19:50,664 INFO L85 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2021-11-02 22:19:50,675 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:19:50,675 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655221567] [2021-11-02 22:19:50,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:19:50,677 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:19:50,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:19:50,927 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-02 22:19:51,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:19:51,158 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-02 22:19:51,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:19:51,173 INFO L85 PathProgramCache]: Analyzing trace with hash -1678820861, now seen corresponding path program 1 times [2021-11-02 22:19:51,173 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:19:51,173 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053230047] [2021-11-02 22:19:51,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:19:51,174 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:19:51,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:19:51,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:19:51,248 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:19:51,248 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053230047] [2021-11-02 22:19:51,249 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2053230047] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:19:51,249 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:19:51,250 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 22:19:51,250 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656656131] [2021-11-02 22:19:51,255 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-11-02 22:19:51,256 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:19:51,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 22:19:51,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 22:19:51,276 INFO L87 Difference]: Start difference. First operand has 114 states, 113 states have (on average 1.5398230088495575) internal successors, (174), 113 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:19:51,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:19:51,336 INFO L93 Difference]: Finished difference Result 114 states and 164 transitions. [2021-11-02 22:19:51,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 22:19:51,339 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 114 states and 164 transitions. [2021-11-02 22:19:51,352 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 71 [2021-11-02 22:19:51,359 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 114 states to 107 states and 156 transitions. [2021-11-02 22:19:51,361 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 107 [2021-11-02 22:19:51,364 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 107 [2021-11-02 22:19:51,365 INFO L73 IsDeterministic]: Start isDeterministic. Operand 107 states and 156 transitions. [2021-11-02 22:19:51,366 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-02 22:19:51,367 INFO L681 BuchiCegarLoop]: Abstraction has 107 states and 156 transitions. [2021-11-02 22:19:51,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states and 156 transitions. [2021-11-02 22:19:51,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2021-11-02 22:19:51,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 107 states have (on average 1.4579439252336448) internal successors, (156), 106 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:19:51,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 156 transitions. [2021-11-02 22:19:51,403 INFO L704 BuchiCegarLoop]: Abstraction has 107 states and 156 transitions. [2021-11-02 22:19:51,404 INFO L587 BuchiCegarLoop]: Abstraction has 107 states and 156 transitions. [2021-11-02 22:19:51,404 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-11-02 22:19:51,404 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 107 states and 156 transitions. [2021-11-02 22:19:51,407 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 71 [2021-11-02 22:19:51,407 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-02 22:19:51,407 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-02 22:19:51,408 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-11-02 22:19:51,408 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:19:51,408 INFO L791 eck$LassoCheckResult]: Stem: 343#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~string10.base, #t~string10.offset := #Ultimate.allocOnStack(13);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string12.base, #t~string12.offset, 1);call write~init~int(77, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(101, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(116, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(104, #t~string12.base, 4 + #t~string12.offset, 1);call write~init~int(58, #t~string12.base, 5 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 6 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string14.base, #t~string14.offset, 1);call write~init~int(82, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(73, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(84, #t~string14.base, 3 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 4 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(75, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 2 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string18.base, #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 1 + #t~string18.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(13);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string31.base, #t~string31.offset, 1);call write~init~int(110, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 2 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string33.base, #t~string33.offset, 1);call write~init~int(102, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(102, #t~string33.base, 2 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 3 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string35.base, #t~string35.offset, 1);call write~init~int(80, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(117, #t~string35.base, 2 + #t~string35.offset, 1);call write~init~int(109, #t~string35.base, 3 + #t~string35.offset, 1);call write~init~int(112, #t~string35.base, 4 + #t~string35.offset, 1);call write~init~int(58, #t~string35.base, 5 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 6 + #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(110, #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(4);call write~init~int(79, #t~string39.base, #t~string39.offset, 1);call write~init~int(102, #t~string39.base, 1 + #t~string39.offset, 1);call write~init~int(102, #t~string39.base, 2 + #t~string39.offset, 1);call write~init~int(0, #t~string39.base, 3 + #t~string39.offset, 1);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string41.base, #t~string41.offset, 1);call write~init~int(32, #t~string41.base, 1 + #t~string41.offset, 1);call write~init~int(0, #t~string41.base, 2 + #t~string41.offset, 1);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string43.base, #t~string43.offset, 1);call write~init~int(0, #t~string43.base, 1 + #t~string43.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(21);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(30);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(9);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(21);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(30);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(9);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(25);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(30);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(9);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 288#L-1 havoc main_#res;havoc main_#t~ret19, main_~retValue_acc~4, main_~tmp~1;havoc main_~retValue_acc~4;havoc main_~tmp~1; 272#L313 havoc valid_product_#res;havoc valid_product_~retValue_acc~6;havoc valid_product_~retValue_acc~6;valid_product_~retValue_acc~6 := 1;valid_product_#res := valid_product_~retValue_acc~6; 273#L321 main_#t~ret19 := valid_product_#res;main_~tmp~1 := main_#t~ret19;havoc main_#t~ret19; 318#L277 assume 0 != main_~tmp~1; 333#L250 havoc test_#t~nondet21, test_#t~nondet22, test_#t~nondet23, test_#t~nondet24, test_~splverifierCounter~0, test_~tmp~2, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~2;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 320#L61-1 [2021-11-02 22:19:51,409 INFO L793 eck$LassoCheckResult]: Loop: 320#L61-1 assume !false; 301#L338 assume test_~splverifierCounter~0 < 4; 302#L339 test_~tmp~2 := test_#t~nondet21;havoc test_#t~nondet21; 342#L347 assume !(0 != test_~tmp~2); 265#L347-1 test_~tmp___0~1 := test_#t~nondet22;havoc test_#t~nondet22; 311#L357 assume !(0 != test_~tmp___0~1); 277#L357-1 test_~tmp___2~0 := test_#t~nondet23;havoc test_#t~nondet23; 257#L367 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 253#L375-2 assume !(0 != ~pumpRunning~0); 290#L412 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret26, processEnvironment_~tmp~4;havoc processEnvironment_~tmp~4; 313#L470 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret25, processEnvironment__wrappee__highWaterSensor_~tmp~3;havoc processEnvironment__wrappee__highWaterSensor_~tmp~3; 239#L444-1 assume !(0 == ~pumpRunning~0); 237#L419 havoc __utac_acc__Specification1_spec__1_#t~ret7, __utac_acc__Specification1_spec__1_#t~ret8, __utac_acc__Specification1_spec__1_~tmp~0, __utac_acc__Specification1_spec__1_~tmp___0~0;havoc __utac_acc__Specification1_spec__1_~tmp~0;havoc __utac_acc__Specification1_spec__1_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 238#L129 __utac_acc__Specification1_spec__1_#t~ret7 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~0 := __utac_acc__Specification1_spec__1_#t~ret7;havoc __utac_acc__Specification1_spec__1_#t~ret7; 319#L61 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~0); 320#L61-1 [2021-11-02 22:19:51,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:19:51,410 INFO L85 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2021-11-02 22:19:51,410 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:19:51,410 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283529935] [2021-11-02 22:19:51,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:19:51,411 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:19:51,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:19:51,475 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-02 22:19:51,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:19:51,625 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-02 22:19:51,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:19:51,628 INFO L85 PathProgramCache]: Analyzing trace with hash -1079829887, now seen corresponding path program 1 times [2021-11-02 22:19:51,628 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:19:51,629 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [476873665] [2021-11-02 22:19:51,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:19:51,629 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:19:51,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:19:51,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:19:51,669 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:19:51,670 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [476873665] [2021-11-02 22:19:51,674 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [476873665] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:19:51,675 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:19:51,675 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 22:19:51,675 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243555468] [2021-11-02 22:19:51,677 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-11-02 22:19:51,678 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:19:51,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 22:19:51,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 22:19:51,680 INFO L87 Difference]: Start difference. First operand 107 states and 156 transitions. cyclomatic complexity: 51 Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:19:51,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:19:51,808 INFO L93 Difference]: Finished difference Result 148 states and 204 transitions. [2021-11-02 22:19:51,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 22:19:51,809 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 148 states and 204 transitions. [2021-11-02 22:19:51,812 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 102 [2021-11-02 22:19:51,814 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 148 states to 148 states and 204 transitions. [2021-11-02 22:19:51,814 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 148 [2021-11-02 22:19:51,814 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 148 [2021-11-02 22:19:51,815 INFO L73 IsDeterministic]: Start isDeterministic. Operand 148 states and 204 transitions. [2021-11-02 22:19:51,816 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-02 22:19:51,816 INFO L681 BuchiCegarLoop]: Abstraction has 148 states and 204 transitions. [2021-11-02 22:19:51,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states and 204 transitions. [2021-11-02 22:19:51,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 148. [2021-11-02 22:19:51,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 148 states have (on average 1.3783783783783783) internal successors, (204), 147 states have internal predecessors, (204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:19:51,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 204 transitions. [2021-11-02 22:19:51,839 INFO L704 BuchiCegarLoop]: Abstraction has 148 states and 204 transitions. [2021-11-02 22:19:51,839 INFO L587 BuchiCegarLoop]: Abstraction has 148 states and 204 transitions. [2021-11-02 22:19:51,839 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-11-02 22:19:51,840 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 148 states and 204 transitions. [2021-11-02 22:19:51,841 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 102 [2021-11-02 22:19:51,841 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-02 22:19:51,841 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-02 22:19:51,842 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-11-02 22:19:51,842 INFO L843 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] [2021-11-02 22:19:51,842 INFO L791 eck$LassoCheckResult]: Stem: 609#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~string10.base, #t~string10.offset := #Ultimate.allocOnStack(13);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string12.base, #t~string12.offset, 1);call write~init~int(77, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(101, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(116, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(104, #t~string12.base, 4 + #t~string12.offset, 1);call write~init~int(58, #t~string12.base, 5 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 6 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string14.base, #t~string14.offset, 1);call write~init~int(82, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(73, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(84, #t~string14.base, 3 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 4 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(75, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 2 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string18.base, #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 1 + #t~string18.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(13);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string31.base, #t~string31.offset, 1);call write~init~int(110, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 2 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string33.base, #t~string33.offset, 1);call write~init~int(102, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(102, #t~string33.base, 2 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 3 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string35.base, #t~string35.offset, 1);call write~init~int(80, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(117, #t~string35.base, 2 + #t~string35.offset, 1);call write~init~int(109, #t~string35.base, 3 + #t~string35.offset, 1);call write~init~int(112, #t~string35.base, 4 + #t~string35.offset, 1);call write~init~int(58, #t~string35.base, 5 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 6 + #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(110, #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(4);call write~init~int(79, #t~string39.base, #t~string39.offset, 1);call write~init~int(102, #t~string39.base, 1 + #t~string39.offset, 1);call write~init~int(102, #t~string39.base, 2 + #t~string39.offset, 1);call write~init~int(0, #t~string39.base, 3 + #t~string39.offset, 1);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string41.base, #t~string41.offset, 1);call write~init~int(32, #t~string41.base, 1 + #t~string41.offset, 1);call write~init~int(0, #t~string41.base, 2 + #t~string41.offset, 1);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string43.base, #t~string43.offset, 1);call write~init~int(0, #t~string43.base, 1 + #t~string43.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(21);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(30);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(9);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(21);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(30);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(9);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(25);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(30);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(9);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 549#L-1 havoc main_#res;havoc main_#t~ret19, main_~retValue_acc~4, main_~tmp~1;havoc main_~retValue_acc~4;havoc main_~tmp~1; 534#L313 havoc valid_product_#res;havoc valid_product_~retValue_acc~6;havoc valid_product_~retValue_acc~6;valid_product_~retValue_acc~6 := 1;valid_product_#res := valid_product_~retValue_acc~6; 535#L321 main_#t~ret19 := valid_product_#res;main_~tmp~1 := main_#t~ret19;havoc main_#t~ret19; 578#L277 assume 0 != main_~tmp~1; 594#L250 havoc test_#t~nondet21, test_#t~nondet22, test_#t~nondet23, test_#t~nondet24, test_~splverifierCounter~0, test_~tmp~2, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~2;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 581#L61-1 [2021-11-02 22:19:51,843 INFO L793 eck$LassoCheckResult]: Loop: 581#L61-1 assume !false; 562#L338 assume test_~splverifierCounter~0 < 4; 563#L339 test_~tmp~2 := test_#t~nondet21;havoc test_#t~nondet21; 606#L347 assume !(0 != test_~tmp~2); 527#L347-1 test_~tmp___0~1 := test_#t~nondet22;havoc test_#t~nondet22; 571#L357 assume !(0 != test_~tmp___0~1); 539#L357-1 test_~tmp___2~0 := test_#t~nondet23;havoc test_#t~nondet23; 519#L367 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 515#L375-2 assume !(0 != ~pumpRunning~0); 551#L412 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret26, processEnvironment_~tmp~4;havoc processEnvironment_~tmp~4; 572#L470 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret25, processEnvironment__wrappee__highWaterSensor_~tmp~3;havoc processEnvironment__wrappee__highWaterSensor_~tmp~3; 500#L444-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret44, isHighWaterLevel_~retValue_acc~9, isHighWaterLevel_~tmp~5, isHighWaterLevel_~tmp___0~2;havoc isHighWaterLevel_~retValue_acc~9;havoc isHighWaterLevel_~tmp~5;havoc isHighWaterLevel_~tmp___0~2;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~2;havoc isHighWaterSensorDry_~retValue_acc~2; 501#L169-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~2; 566#L174-1 isHighWaterLevel_#t~ret44 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~5 := isHighWaterLevel_#t~ret44;havoc isHighWaterLevel_#t~ret44; 595#L572-3 assume 0 != isHighWaterLevel_~tmp~5;isHighWaterLevel_~tmp___0~2 := 0; 603#L572-5 isHighWaterLevel_~retValue_acc~9 := isHighWaterLevel_~tmp___0~2;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~9; 557#L578-1 processEnvironment__wrappee__highWaterSensor_#t~ret25 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~3 := processEnvironment__wrappee__highWaterSensor_#t~ret25;havoc processEnvironment__wrappee__highWaterSensor_#t~ret25; 558#L448-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~3); 498#L419 havoc __utac_acc__Specification1_spec__1_#t~ret7, __utac_acc__Specification1_spec__1_#t~ret8, __utac_acc__Specification1_spec__1_~tmp~0, __utac_acc__Specification1_spec__1_~tmp___0~0;havoc __utac_acc__Specification1_spec__1_~tmp~0;havoc __utac_acc__Specification1_spec__1_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 499#L129 __utac_acc__Specification1_spec__1_#t~ret7 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~0 := __utac_acc__Specification1_spec__1_#t~ret7;havoc __utac_acc__Specification1_spec__1_#t~ret7; 580#L61 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~0); 581#L61-1 [2021-11-02 22:19:51,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:19:51,844 INFO L85 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2021-11-02 22:19:51,844 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:19:51,844 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615719755] [2021-11-02 22:19:51,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:19:51,844 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:19:51,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:19:51,918 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-02 22:19:51,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:19:51,971 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-02 22:19:51,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:19:51,972 INFO L85 PathProgramCache]: Analyzing trace with hash -246413043, now seen corresponding path program 1 times [2021-11-02 22:19:51,973 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:19:51,973 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280947391] [2021-11-02 22:19:51,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:19:51,973 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:19:51,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:19:51,979 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-02 22:19:51,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:19:51,988 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-02 22:19:51,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:19:51,989 INFO L85 PathProgramCache]: Analyzing trace with hash 209658151, now seen corresponding path program 1 times [2021-11-02 22:19:51,989 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:19:51,989 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352242726] [2021-11-02 22:19:51,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:19:51,990 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:19:52,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:19:52,028 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-02 22:19:52,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:19:52,089 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-02 22:20:52,058 WARN L207 SmtUtils]: Spent 59.63 s on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2021-11-02 22:21:53,152 WARN L207 SmtUtils]: Spent 28.91 s on a formula simplification that was a NOOP. DAG size: 433 [2021-11-02 22:21:53,301 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 02.11 10:21:53 BoogieIcfgContainer [2021-11-02 22:21:53,301 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-11-02 22:21:53,302 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-02 22:21:53,302 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-02 22:21:53,302 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-02 22:21:53,303 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 10:19:50" (3/4) ... [2021-11-02 22:21:53,306 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-11-02 22:21:53,357 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d2d063c-32ad-43e8-bf97-5aba9385242b/bin/uautomizer-tBqnrhUYjU/witness.graphml [2021-11-02 22:21:53,357 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-02 22:21:53,358 INFO L168 Benchmark]: Toolchain (without parser) took 124729.68 ms. Allocated memory was 104.9 MB in the beginning and 146.8 MB in the end (delta: 41.9 MB). Free memory was 66.4 MB in the beginning and 90.1 MB in the end (delta: -23.7 MB). Peak memory consumption was 20.2 MB. Max. memory is 16.1 GB. [2021-11-02 22:21:53,359 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 104.9 MB. Free memory was 83.6 MB in the beginning and 83.6 MB in the end (delta: 64.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-02 22:21:53,359 INFO L168 Benchmark]: CACSL2BoogieTranslator took 738.18 ms. Allocated memory is still 104.9 MB. Free memory was 66.2 MB in the beginning and 69.6 MB in the end (delta: -3.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-11-02 22:21:53,360 INFO L168 Benchmark]: Boogie Procedure Inliner took 70.08 ms. Allocated memory is still 104.9 MB. Free memory was 69.6 MB in the beginning and 66.0 MB in the end (delta: 3.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-11-02 22:21:53,360 INFO L168 Benchmark]: Boogie Preprocessor took 92.23 ms. Allocated memory is still 104.9 MB. Free memory was 66.0 MB in the beginning and 63.6 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-02 22:21:53,361 INFO L168 Benchmark]: RCFGBuilder took 987.42 ms. Allocated memory was 104.9 MB in the beginning and 146.8 MB in the end (delta: 41.9 MB). Free memory was 63.6 MB in the beginning and 105.2 MB in the end (delta: -41.6 MB). Peak memory consumption was 32.7 MB. Max. memory is 16.1 GB. [2021-11-02 22:21:53,361 INFO L168 Benchmark]: BuchiAutomizer took 122779.75 ms. Allocated memory is still 146.8 MB. Free memory was 105.2 MB in the beginning and 92.2 MB in the end (delta: 13.0 MB). Peak memory consumption was 78.2 MB. Max. memory is 16.1 GB. [2021-11-02 22:21:53,362 INFO L168 Benchmark]: Witness Printer took 55.78 ms. Allocated memory is still 146.8 MB. Free memory was 92.2 MB in the beginning and 90.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-02 22:21:53,365 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 104.9 MB. Free memory was 83.6 MB in the beginning and 83.6 MB in the end (delta: 64.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 738.18 ms. Allocated memory is still 104.9 MB. Free memory was 66.2 MB in the beginning and 69.6 MB in the end (delta: -3.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 70.08 ms. Allocated memory is still 104.9 MB. Free memory was 69.6 MB in the beginning and 66.0 MB in the end (delta: 3.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 92.23 ms. Allocated memory is still 104.9 MB. Free memory was 66.0 MB in the beginning and 63.6 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 987.42 ms. Allocated memory was 104.9 MB in the beginning and 146.8 MB in the end (delta: 41.9 MB). Free memory was 63.6 MB in the beginning and 105.2 MB in the end (delta: -41.6 MB). Peak memory consumption was 32.7 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 122779.75 ms. Allocated memory is still 146.8 MB. Free memory was 105.2 MB in the beginning and 92.2 MB in the end (delta: 13.0 MB). Peak memory consumption was 78.2 MB. Max. memory is 16.1 GB. * Witness Printer took 55.78 ms. Allocated memory is still 146.8 MB. Free memory was 92.2 MB in the beginning and 90.1 MB in the end (delta: 2.1 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 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 148 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 122.7s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 122.3s. Construction of modules took 0.1s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 148 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 319 SDtfs, 264 SDslu, 66 SDs, 0 SdLazy, 33 SolverSat, 23 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont1 unkn0 SFLI2 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: 337]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=26988} State at position 1 is {NULL=0, NULL=0, NULL=34149, NULL=26988, NULL=0, NULL=45744, NULL=45754, methaneLevelCritical=0, tmp=0, NULL=0, NULL=45752, retValue_acc=0, NULL=45749, NULL=0, tmp___1=0, NULL=45753, NULL=0, NULL=45745, cleanupTimeShifts=4, NULL=34150, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@52f81ae6=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2d5ef67c=0, waterLevel=1, NULL=0, \result=1, head=0, pumpRunning=0, NULL=45747, tmp=1, retValue_acc=1, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@68dec3e2=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@eaf4cf9=59, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6a9b34c7=0, tmp=0, \result=1, NULL=0, NULL=0, NULL=45741, NULL=0, NULL=0, NULL=0, NULL=0, tmp=1, tmp___0=0, NULL=45746, NULL=34148, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7fb93e54=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3575b22a=0, head=0, tmp=0, NULL=0, NULL=0, NULL=0, NULL=45750, retValue_acc=0, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1e951c10=0, NULL=0, NULL=45751, tmp___0=0, NULL=0, NULL=0, NULL=45742, NULL=45748, NULL=0, NULL=0, tmp___0=0, tmp=0, NULL=34153, NULL=0, NULL=0, systemActive=1, NULL=45743, NULL=0, NULL=34145, \result=0, NULL=0, NULL=34146, NULL=34151, \result=0, NULL=45755, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1da6842e=0, NULL=0, NULL=0, NULL=45756, retValue_acc=1, NULL=34147, NULL=26989, tmp___2=59, splverifierCounter=0, NULL=0, \result=0, NULL=34152, NULL=34144, NULL=45740, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2913cfe1=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L86] int waterLevel = 1; [L87] int methaneLevelCritical = 0; [L189] int cleanupTimeShifts = 4; [L405] int pumpRunning = 0; [L406] int systemActive = 1; [L779] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L268] int retValue_acc ; [L269] int tmp ; [L317] int retValue_acc ; [L320] retValue_acc = 1 [L321] return (retValue_acc); [L275] tmp = valid_product() [L277] COND TRUE \read(tmp) [L328] int splverifierCounter ; [L329] int tmp ; [L330] int tmp___0 ; [L331] int tmp___1 ; [L332] int tmp___2 ; [L335] splverifierCounter = 0 Loop: [L337] COND TRUE 1 [L339] COND TRUE splverifierCounter < 4 [L345] tmp = __VERIFIER_nondet_int() [L347] COND FALSE !(\read(tmp)) [L355] tmp___0 = __VERIFIER_nondet_int() [L357] COND FALSE !(\read(tmp___0)) [L365] tmp___2 = __VERIFIER_nondet_int() [L367] COND TRUE \read(tmp___2) [L605] systemActive = 1 [L412] COND FALSE !(\read(pumpRunning)) [L419] COND TRUE \read(systemActive) [L467] int tmp ; [L470] COND FALSE !(\read(pumpRunning)) [L441] int tmp ; [L444] COND TRUE ! pumpRunning [L564] int retValue_acc ; [L565] int tmp ; [L566] int tmp___0 ; [L166] int retValue_acc ; [L169] COND TRUE waterLevel < 2 [L170] retValue_acc = 1 [L171] return (retValue_acc); [L570] tmp = isHighWaterSensorDry() [L572] COND TRUE \read(tmp) [L573] tmp___0 = 0 [L577] retValue_acc = tmp___0 [L578] return (retValue_acc); [L446] tmp = isHighWaterLevel() [L448] COND FALSE !(\read(tmp)) [L54] int tmp ; [L55] int tmp___0 ; [L125] int retValue_acc ; [L128] retValue_acc = methaneLevelCritical [L129] return (retValue_acc); [L59] tmp = isMethaneLevelCritical() [L61] COND FALSE !(\read(tmp)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-11-02 22:21:53,427 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d2d063c-32ad-43e8-bf97-5aba9385242b/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)