./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product31.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481978cb-efa6-49c6-b5b8-56b6f556d2d9/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481978cb-efa6-49c6-b5b8-56b6f556d2d9/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481978cb-efa6-49c6-b5b8-56b6f556d2d9/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481978cb-efa6-49c6-b5b8-56b6f556d2d9/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product31.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481978cb-efa6-49c6-b5b8-56b6f556d2d9/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481978cb-efa6-49c6-b5b8-56b6f556d2d9/bin/uautomizer-verify-jihMAELWvX --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7fffab71bdab4f0e8e57248febe72260063a133a0cb2741fe9829d7065610e52 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 17:02:39,406 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 17:02:39,513 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481978cb-efa6-49c6-b5b8-56b6f556d2d9/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 17:02:39,517 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 17:02:39,518 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 17:02:39,573 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 17:02:39,574 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 17:02:39,574 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 17:02:39,577 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 17:02:39,578 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 17:02:39,578 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 17:02:39,579 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 17:02:39,580 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 17:02:39,580 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 17:02:39,580 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 17:02:39,583 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 17:02:39,583 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 17:02:39,584 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 17:02:39,584 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 17:02:39,584 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 17:02:39,584 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 17:02:39,589 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 17:02:39,590 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 17:02:39,590 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 17:02:39,590 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 17:02:39,590 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 17:02:39,606 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 17:02:39,607 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 17:02:39,608 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 17:02:39,608 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 17:02:39,609 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 17:02:39,610 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 17:02:39,610 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 17:02:39,610 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 17:02:39,611 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 17:02:39,611 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 17:02:39,611 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 17:02:39,612 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 17:02:39,612 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 17:02:39,612 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 17:02:39,612 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 17:02:39,613 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 17:02:39,613 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_481978cb-efa6-49c6-b5b8-56b6f556d2d9/bin/uautomizer-verify-jihMAELWvX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481978cb-efa6-49c6-b5b8-56b6f556d2d9/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7fffab71bdab4f0e8e57248febe72260063a133a0cb2741fe9829d7065610e52 [2024-11-08 17:02:39,878 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 17:02:39,928 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 17:02:39,942 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 17:02:39,943 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 17:02:39,947 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 17:02:39,949 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481978cb-efa6-49c6-b5b8-56b6f556d2d9/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/product-lines/minepump_spec4_product31.cil.c Unable to find full path for "g++" [2024-11-08 17:02:41,856 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 17:02:42,078 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 17:02:42,079 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481978cb-efa6-49c6-b5b8-56b6f556d2d9/sv-benchmarks/c/product-lines/minepump_spec4_product31.cil.c [2024-11-08 17:02:42,095 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481978cb-efa6-49c6-b5b8-56b6f556d2d9/bin/uautomizer-verify-jihMAELWvX/data/9ab14f9fb/db20fd8b3c434de78cd9e543c8eee098/FLAG96200339d [2024-11-08 17:02:42,423 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481978cb-efa6-49c6-b5b8-56b6f556d2d9/bin/uautomizer-verify-jihMAELWvX/data/9ab14f9fb/db20fd8b3c434de78cd9e543c8eee098 [2024-11-08 17:02:42,426 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 17:02:42,427 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 17:02:42,430 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 17:02:42,430 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 17:02:42,436 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 17:02:42,437 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:02:42" (1/1) ... [2024-11-08 17:02:42,439 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53cae423 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:02:42, skipping insertion in model container [2024-11-08 17:02:42,439 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:02:42" (1/1) ... [2024-11-08 17:02:42,485 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 17:02:43,006 WARN L250 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_481978cb-efa6-49c6-b5b8-56b6f556d2d9/sv-benchmarks/c/product-lines/minepump_spec4_product31.cil.c[18328,18341] [2024-11-08 17:02:43,012 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 17:02:43,027 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 17:02:43,042 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [49] [2024-11-08 17:02:43,044 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [153] [2024-11-08 17:02:43,044 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [188] [2024-11-08 17:02:43,045 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [554] [2024-11-08 17:02:43,045 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [648] [2024-11-08 17:02:43,046 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [716] [2024-11-08 17:02:43,046 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification4_spec.i","") [930] [2024-11-08 17:02:43,046 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [957] [2024-11-08 17:02:43,135 WARN L250 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_481978cb-efa6-49c6-b5b8-56b6f556d2d9/sv-benchmarks/c/product-lines/minepump_spec4_product31.cil.c[18328,18341] [2024-11-08 17:02:43,136 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 17:02:43,179 INFO L204 MainTranslator]: Completed translation [2024-11-08 17:02:43,180 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:02:43 WrapperNode [2024-11-08 17:02:43,181 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 17:02:43,182 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 17:02:43,182 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 17:02:43,183 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 17:02:43,193 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:02:43" (1/1) ... [2024-11-08 17:02:43,218 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:02:43" (1/1) ... [2024-11-08 17:02:43,272 INFO L138 Inliner]: procedures = 55, calls = 101, calls flagged for inlining = 22, calls inlined = 18, statements flattened = 194 [2024-11-08 17:02:43,272 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 17:02:43,273 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 17:02:43,275 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 17:02:43,276 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 17:02:43,292 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:02:43" (1/1) ... [2024-11-08 17:02:43,292 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:02:43" (1/1) ... [2024-11-08 17:02:43,295 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:02:43" (1/1) ... [2024-11-08 17:02:43,329 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-08 17:02:43,329 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:02:43" (1/1) ... [2024-11-08 17:02:43,330 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:02:43" (1/1) ... [2024-11-08 17:02:43,336 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:02:43" (1/1) ... [2024-11-08 17:02:43,340 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:02:43" (1/1) ... [2024-11-08 17:02:43,343 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:02:43" (1/1) ... [2024-11-08 17:02:43,344 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:02:43" (1/1) ... [2024-11-08 17:02:43,347 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 17:02:43,348 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 17:02:43,349 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 17:02:43,349 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 17:02:43,350 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:02:43" (1/1) ... [2024-11-08 17:02:43,358 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 17:02:43,375 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481978cb-efa6-49c6-b5b8-56b6f556d2d9/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:02:43,392 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481978cb-efa6-49c6-b5b8-56b6f556d2d9/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 17:02:43,400 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481978cb-efa6-49c6-b5b8-56b6f556d2d9/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 17:02:43,437 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 17:02:43,437 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2024-11-08 17:02:43,438 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2024-11-08 17:02:43,438 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-11-08 17:02:43,438 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-11-08 17:02:43,438 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-11-08 17:02:43,439 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-11-08 17:02:43,439 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2024-11-08 17:02:43,439 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2024-11-08 17:02:43,440 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2024-11-08 17:02:43,440 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2024-11-08 17:02:43,440 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2024-11-08 17:02:43,440 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2024-11-08 17:02:43,441 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2024-11-08 17:02:43,441 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2024-11-08 17:02:43,441 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 17:02:43,442 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2024-11-08 17:02:43,442 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2024-11-08 17:02:43,442 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 17:02:43,442 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 17:02:43,583 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 17:02:43,586 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 17:02:44,017 INFO L? ?]: Removed 41 outVars from TransFormulas that were not future-live. [2024-11-08 17:02:44,017 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 17:02:44,036 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 17:02:44,037 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-08 17:02:44,037 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:02:44 BoogieIcfgContainer [2024-11-08 17:02:44,037 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 17:02:44,040 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 17:02:44,041 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 17:02:44,045 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 17:02:44,046 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 05:02:42" (1/3) ... [2024-11-08 17:02:44,047 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ba67d8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:02:44, skipping insertion in model container [2024-11-08 17:02:44,047 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:02:43" (2/3) ... [2024-11-08 17:02:44,047 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ba67d8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:02:44, skipping insertion in model container [2024-11-08 17:02:44,047 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:02:44" (3/3) ... [2024-11-08 17:02:44,049 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product31.cil.c [2024-11-08 17:02:44,074 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 17:02:44,075 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 17:02:44,161 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 17:02:44,170 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4507089a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 17:02:44,170 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 17:02:44,178 INFO L276 IsEmpty]: Start isEmpty. Operand has 90 states, 66 states have (on average 1.378787878787879) internal successors, (91), 75 states have internal predecessors, (91), 14 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (14), 10 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-08 17:02:44,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-08 17:02:44,194 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:02:44,194 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:02:44,196 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:02:44,204 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:02:44,205 INFO L85 PathProgramCache]: Analyzing trace with hash -598091715, now seen corresponding path program 1 times [2024-11-08 17:02:44,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:02:44,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789206282] [2024-11-08 17:02:44,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:02:44,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:02:44,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:02:44,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:02:44,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:02:44,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789206282] [2024-11-08 17:02:44,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [789206282] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:02:44,444 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:02:44,444 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 17:02:44,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636177827] [2024-11-08 17:02:44,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:02:44,454 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-08 17:02:44,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:02:44,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-08 17:02:44,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 17:02:44,481 INFO L87 Difference]: Start difference. First operand has 90 states, 66 states have (on average 1.378787878787879) internal successors, (91), 75 states have internal predecessors, (91), 14 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (14), 10 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:02:44,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:02:44,518 INFO L93 Difference]: Finished difference Result 172 states and 233 transitions. [2024-11-08 17:02:44,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 17:02:44,524 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2024-11-08 17:02:44,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:02:44,536 INFO L225 Difference]: With dead ends: 172 [2024-11-08 17:02:44,536 INFO L226 Difference]: Without dead ends: 81 [2024-11-08 17:02:44,540 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 17:02:44,544 INFO L432 NwaCegarLoop]: 113 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 17:02:44,546 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 17:02:44,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2024-11-08 17:02:44,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 81. [2024-11-08 17:02:44,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 59 states have (on average 1.305084745762712) internal successors, (77), 67 states have internal predecessors, (77), 14 states have call successors, (14), 8 states have call predecessors, (14), 7 states have return successors, (13), 9 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-08 17:02:44,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 104 transitions. [2024-11-08 17:02:44,607 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 104 transitions. Word has length 19 [2024-11-08 17:02:44,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:02:44,608 INFO L471 AbstractCegarLoop]: Abstraction has 81 states and 104 transitions. [2024-11-08 17:02:44,608 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:02:44,609 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 104 transitions. [2024-11-08 17:02:44,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-08 17:02:44,611 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:02:44,611 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:02:44,612 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 17:02:44,612 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:02:44,613 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:02:44,613 INFO L85 PathProgramCache]: Analyzing trace with hash -1597370723, now seen corresponding path program 1 times [2024-11-08 17:02:44,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:02:44,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48764586] [2024-11-08 17:02:44,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:02:44,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:02:44,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:02:44,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:02:44,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:02:44,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [48764586] [2024-11-08 17:02:44,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [48764586] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:02:44,750 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:02:44,750 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:02:44,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65523537] [2024-11-08 17:02:44,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:02:44,752 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:02:44,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:02:44,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:02:44,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:02:44,754 INFO L87 Difference]: Start difference. First operand 81 states and 104 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:02:44,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:02:44,776 INFO L93 Difference]: Finished difference Result 124 states and 158 transitions. [2024-11-08 17:02:44,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:02:44,777 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2024-11-08 17:02:44,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:02:44,778 INFO L225 Difference]: With dead ends: 124 [2024-11-08 17:02:44,779 INFO L226 Difference]: Without dead ends: 72 [2024-11-08 17:02:44,779 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:02:44,781 INFO L432 NwaCegarLoop]: 91 mSDtfsCounter, 16 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 17:02:44,782 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 161 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 17:02:44,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2024-11-08 17:02:44,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2024-11-08 17:02:44,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 53 states have (on average 1.320754716981132) internal successors, (70), 61 states have internal predecessors, (70), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-08 17:02:44,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 92 transitions. [2024-11-08 17:02:44,796 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 92 transitions. Word has length 20 [2024-11-08 17:02:44,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:02:44,797 INFO L471 AbstractCegarLoop]: Abstraction has 72 states and 92 transitions. [2024-11-08 17:02:44,797 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:02:44,797 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 92 transitions. [2024-11-08 17:02:44,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-08 17:02:44,799 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:02:44,799 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:02:44,799 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 17:02:44,800 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:02:44,800 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:02:44,801 INFO L85 PathProgramCache]: Analyzing trace with hash 1504059283, now seen corresponding path program 1 times [2024-11-08 17:02:44,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:02:44,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792245015] [2024-11-08 17:02:44,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:02:44,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:02:44,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:02:45,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:02:45,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:02:45,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792245015] [2024-11-08 17:02:45,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [792245015] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:02:45,064 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:02:45,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 17:02:45,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240406265] [2024-11-08 17:02:45,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:02:45,066 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 17:02:45,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:02:45,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 17:02:45,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-08 17:02:45,068 INFO L87 Difference]: Start difference. First operand 72 states and 92 transitions. Second operand has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:02:45,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:02:45,367 INFO L93 Difference]: Finished difference Result 239 states and 313 transitions. [2024-11-08 17:02:45,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 17:02:45,368 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2024-11-08 17:02:45,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:02:45,371 INFO L225 Difference]: With dead ends: 239 [2024-11-08 17:02:45,371 INFO L226 Difference]: Without dead ends: 174 [2024-11-08 17:02:45,372 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-08 17:02:45,374 INFO L432 NwaCegarLoop]: 102 mSDtfsCounter, 210 mSDsluCounter, 254 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 210 SdHoareTripleChecker+Valid, 356 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 17:02:45,374 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [210 Valid, 356 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 17:02:45,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2024-11-08 17:02:45,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 168. [2024-11-08 17:02:45,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 123 states have (on average 1.3577235772357723) internal successors, (167), 141 states have internal predecessors, (167), 26 states have call successors, (26), 18 states have call predecessors, (26), 18 states have return successors, (27), 16 states have call predecessors, (27), 26 states have call successors, (27) [2024-11-08 17:02:45,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 220 transitions. [2024-11-08 17:02:45,461 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 220 transitions. Word has length 24 [2024-11-08 17:02:45,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:02:45,461 INFO L471 AbstractCegarLoop]: Abstraction has 168 states and 220 transitions. [2024-11-08 17:02:45,462 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:02:45,465 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 220 transitions. [2024-11-08 17:02:45,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-08 17:02:45,467 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:02:45,467 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:02:45,467 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 17:02:45,467 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:02:45,472 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:02:45,472 INFO L85 PathProgramCache]: Analyzing trace with hash 621282249, now seen corresponding path program 1 times [2024-11-08 17:02:45,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:02:45,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989454119] [2024-11-08 17:02:45,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:02:45,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:02:45,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:02:45,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:02:45,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:02:45,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989454119] [2024-11-08 17:02:45,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1989454119] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:02:45,711 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:02:45,711 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 17:02:45,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516620925] [2024-11-08 17:02:45,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:02:45,712 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 17:02:45,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:02:45,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 17:02:45,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 17:02:45,714 INFO L87 Difference]: Start difference. First operand 168 states and 220 transitions. Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:02:45,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:02:45,859 INFO L93 Difference]: Finished difference Result 473 states and 641 transitions. [2024-11-08 17:02:45,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 17:02:45,860 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2024-11-08 17:02:45,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:02:45,866 INFO L225 Difference]: With dead ends: 473 [2024-11-08 17:02:45,866 INFO L226 Difference]: Without dead ends: 312 [2024-11-08 17:02:45,868 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-08 17:02:45,870 INFO L432 NwaCegarLoop]: 86 mSDtfsCounter, 58 mSDsluCounter, 249 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 335 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 17:02:45,871 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 335 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 17:02:45,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2024-11-08 17:02:45,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 312. [2024-11-08 17:02:45,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 312 states, 226 states have (on average 1.336283185840708) internal successors, (302), 258 states have internal predecessors, (302), 52 states have call successors, (52), 36 states have call predecessors, (52), 33 states have return successors, (58), 29 states have call predecessors, (58), 52 states have call successors, (58) [2024-11-08 17:02:45,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 412 transitions. [2024-11-08 17:02:45,947 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 412 transitions. Word has length 28 [2024-11-08 17:02:45,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:02:45,952 INFO L471 AbstractCegarLoop]: Abstraction has 312 states and 412 transitions. [2024-11-08 17:02:45,952 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:02:45,952 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 412 transitions. [2024-11-08 17:02:45,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-08 17:02:45,955 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:02:45,956 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:02:45,960 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 17:02:45,960 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:02:45,961 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:02:45,962 INFO L85 PathProgramCache]: Analyzing trace with hash 1321068046, now seen corresponding path program 1 times [2024-11-08 17:02:45,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:02:45,962 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774103777] [2024-11-08 17:02:45,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:02:45,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:02:45,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:02:46,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:02:46,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:02:46,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [774103777] [2024-11-08 17:02:46,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [774103777] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:02:46,103 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:02:46,103 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 17:02:46,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005473268] [2024-11-08 17:02:46,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:02:46,104 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:02:46,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:02:46,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:02:46,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:02:46,106 INFO L87 Difference]: Start difference. First operand 312 states and 412 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:02:46,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:02:46,149 INFO L93 Difference]: Finished difference Result 520 states and 700 transitions. [2024-11-08 17:02:46,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:02:46,149 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2024-11-08 17:02:46,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:02:46,152 INFO L225 Difference]: With dead ends: 520 [2024-11-08 17:02:46,152 INFO L226 Difference]: Without dead ends: 215 [2024-11-08 17:02:46,155 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:02:46,157 INFO L432 NwaCegarLoop]: 53 mSDtfsCounter, 38 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 17:02:46,158 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 53 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 17:02:46,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2024-11-08 17:02:46,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 211. [2024-11-08 17:02:46,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 161 states have (on average 1.2546583850931676) internal successors, (202), 171 states have internal predecessors, (202), 26 states have call successors, (26), 26 states have call predecessors, (26), 23 states have return successors, (28), 23 states have call predecessors, (28), 26 states have call successors, (28) [2024-11-08 17:02:46,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 256 transitions. [2024-11-08 17:02:46,188 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 256 transitions. Word has length 30 [2024-11-08 17:02:46,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:02:46,188 INFO L471 AbstractCegarLoop]: Abstraction has 211 states and 256 transitions. [2024-11-08 17:02:46,188 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:02:46,189 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 256 transitions. [2024-11-08 17:02:46,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-08 17:02:46,190 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:02:46,190 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:02:46,191 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-08 17:02:46,191 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:02:46,192 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:02:46,192 INFO L85 PathProgramCache]: Analyzing trace with hash -1157001809, now seen corresponding path program 1 times [2024-11-08 17:02:46,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:02:46,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679603592] [2024-11-08 17:02:46,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:02:46,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:02:46,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:02:46,303 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 17:02:46,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:02:46,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:02:46,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:02:46,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679603592] [2024-11-08 17:02:46,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1679603592] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:02:46,311 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:02:46,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 17:02:46,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407911534] [2024-11-08 17:02:46,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:02:46,312 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 17:02:46,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:02:46,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 17:02:46,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-08 17:02:46,314 INFO L87 Difference]: Start difference. First operand 211 states and 256 transitions. Second operand has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 5 states have internal predecessors, (29), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-08 17:02:46,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:02:46,489 INFO L93 Difference]: Finished difference Result 217 states and 262 transitions. [2024-11-08 17:02:46,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 17:02:46,490 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 5 states have internal predecessors, (29), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 32 [2024-11-08 17:02:46,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:02:46,491 INFO L225 Difference]: With dead ends: 217 [2024-11-08 17:02:46,491 INFO L226 Difference]: Without dead ends: 0 [2024-11-08 17:02:46,492 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-11-08 17:02:46,494 INFO L432 NwaCegarLoop]: 39 mSDtfsCounter, 47 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 17:02:46,494 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 137 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 17:02:46,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-08 17:02:46,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-08 17:02:46,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2024-11-08 17:02:46,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-08 17:02:46,497 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 32 [2024-11-08 17:02:46,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:02:46,497 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-08 17:02:46,498 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 5 states have internal predecessors, (29), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-08 17:02:46,498 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-08 17:02:46,498 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-08 17:02:46,501 INFO L782 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-08 17:02:46,502 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-08 17:02:46,505 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-11-08 17:02:46,508 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-08 17:02:47,535 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-08 17:02:47,581 WARN L162 FloydHoareUtils]: Requires clause for timeShift contained old-variable. Original clause: (and (= ~pumpRunning~0 0) (= |old(~pumpRunning~0)| 0) (= |old(~waterLevel~0)| ~waterLevel~0)) Eliminated clause: (= ~pumpRunning~0 0) [2024-11-08 17:02:47,585 WARN L162 FloydHoareUtils]: Requires clause for waterRise contained old-variable. Original clause: (and (= ~pumpRunning~0 0) (= |old(~waterLevel~0)| ~waterLevel~0)) Eliminated clause: (= ~pumpRunning~0 0) [2024-11-08 17:02:47,588 WARN L162 FloydHoareUtils]: Requires clause for processEnvironment__wrappee__methaneQuery contained old-variable. Original clause: (and (= ~pumpRunning~0 0) (= |old(~pumpRunning~0)| 0) (not (= 0 ~systemActive~0))) Eliminated clause: (and (= ~pumpRunning~0 0) (not (= 0 ~systemActive~0))) [2024-11-08 17:02:47,591 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.11 05:02:47 BoogieIcfgContainer [2024-11-08 17:02:47,591 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-08 17:02:47,592 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 17:02:47,592 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 17:02:47,592 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 17:02:47,593 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:02:44" (3/4) ... [2024-11-08 17:02:47,596 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-08 17:02:47,602 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2024-11-08 17:02:47,602 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2024-11-08 17:02:47,602 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2024-11-08 17:02:47,602 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2024-11-08 17:02:47,602 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2024-11-08 17:02:47,603 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2024-11-08 17:02:47,603 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__methaneQuery [2024-11-08 17:02:47,603 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2024-11-08 17:02:47,611 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2024-11-08 17:02:47,612 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-11-08 17:02:47,612 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-08 17:02:47,613 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-08 17:02:47,613 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-08 17:02:47,745 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481978cb-efa6-49c6-b5b8-56b6f556d2d9/bin/uautomizer-verify-jihMAELWvX/witness.graphml [2024-11-08 17:02:47,745 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481978cb-efa6-49c6-b5b8-56b6f556d2d9/bin/uautomizer-verify-jihMAELWvX/witness.yml [2024-11-08 17:02:47,745 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 17:02:47,746 INFO L158 Benchmark]: Toolchain (without parser) took 5318.89ms. Allocated memory was 132.1MB in the beginning and 209.7MB in the end (delta: 77.6MB). Free memory was 69.0MB in the beginning and 153.1MB in the end (delta: -84.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 17:02:47,747 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 132.1MB. Free memory was 105.3MB in the beginning and 105.1MB in the end (delta: 139.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 17:02:47,747 INFO L158 Benchmark]: CACSL2BoogieTranslator took 751.43ms. Allocated memory was 132.1MB in the beginning and 169.9MB in the end (delta: 37.7MB). Free memory was 68.7MB in the beginning and 124.9MB in the end (delta: -56.3MB). Peak memory consumption was 14.1MB. Max. memory is 16.1GB. [2024-11-08 17:02:47,747 INFO L158 Benchmark]: Boogie Procedure Inliner took 90.55ms. Allocated memory is still 169.9MB. Free memory was 124.9MB in the beginning and 122.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 17:02:47,748 INFO L158 Benchmark]: Boogie Preprocessor took 74.34ms. Allocated memory is still 169.9MB. Free memory was 122.8MB in the beginning and 120.3MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 17:02:47,748 INFO L158 Benchmark]: RCFGBuilder took 689.17ms. Allocated memory is still 169.9MB. Free memory was 120.3MB in the beginning and 128.1MB in the end (delta: -7.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-08 17:02:47,749 INFO L158 Benchmark]: TraceAbstraction took 3550.82ms. Allocated memory was 169.9MB in the beginning and 209.7MB in the end (delta: 39.8MB). Free memory was 127.2MB in the beginning and 161.5MB in the end (delta: -34.2MB). Peak memory consumption was 105.3MB. Max. memory is 16.1GB. [2024-11-08 17:02:47,749 INFO L158 Benchmark]: Witness Printer took 153.93ms. Allocated memory is still 209.7MB. Free memory was 161.5MB in the beginning and 153.1MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-08 17:02:47,751 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 132.1MB. Free memory was 105.3MB in the beginning and 105.1MB in the end (delta: 139.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 751.43ms. Allocated memory was 132.1MB in the beginning and 169.9MB in the end (delta: 37.7MB). Free memory was 68.7MB in the beginning and 124.9MB in the end (delta: -56.3MB). Peak memory consumption was 14.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 90.55ms. Allocated memory is still 169.9MB. Free memory was 124.9MB in the beginning and 122.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 74.34ms. Allocated memory is still 169.9MB. Free memory was 122.8MB in the beginning and 120.3MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 689.17ms. Allocated memory is still 169.9MB. Free memory was 120.3MB in the beginning and 128.1MB in the end (delta: -7.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 3550.82ms. Allocated memory was 169.9MB in the beginning and 209.7MB in the end (delta: 39.8MB). Free memory was 127.2MB in the beginning and 161.5MB in the end (delta: -34.2MB). Peak memory consumption was 105.3MB. Max. memory is 16.1GB. * Witness Printer took 153.93ms. Allocated memory is still 209.7MB. Free memory was 161.5MB in the beginning and 153.1MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [49] - GenericResultAtLocation [Line: 153]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [153] - GenericResultAtLocation [Line: 188]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [188] - GenericResultAtLocation [Line: 554]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [554] - GenericResultAtLocation [Line: 648]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [648] - GenericResultAtLocation [Line: 716]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [716] - GenericResultAtLocation [Line: 930]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification4_spec.i","") [930] - GenericResultAtLocation [Line: 957]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [957] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 962]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 90 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.4s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 374 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 369 mSDsluCounter, 1155 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 671 mSDsCounter, 36 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 186 IncrementalHoareTripleChecker+Invalid, 222 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 36 mSolverCounterUnsat, 484 mSDtfsCounter, 186 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 33 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=312occurred in iteration=4, InterpolantAutomatonStates: 25, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 6 MinimizatonAttempts, 10 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 153 NumberOfCodeBlocks, 153 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 147 ConstructedInterpolants, 0 QuantifiedInterpolants, 341 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 660]: Loop Invariant Derived loop invariant: ((pumpRunning == 0) && (splverifierCounter == 0)) - InvariantResult [Line: 659]: Location Invariant Derived location invariant: 0 - InvariantResult [Line: 62]: Loop Invariant Derived loop invariant: 0 - ProcedureContractResult [Line: 832]: Procedure Contract for deactivatePump Derived contract for procedure deactivatePump. Requires: 0 Ensures: (0 && (((((cleanupTimeShifts == \old(cleanupTimeShifts)) && (head == \old(head))) && (waterLevel == \old(waterLevel))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (systemActive == \old(systemActive)))) - ProcedureContractResult [Line: 748]: Procedure Contract for processEnvironment__wrappee__base Derived contract for procedure processEnvironment__wrappee__base. Requires: ((pumpRunning == 0) && (0 != systemActive)) Ensures: (((pumpRunning == 0) && (0 != systemActive)) && ((((((cleanupTimeShifts == \old(cleanupTimeShifts)) && (head == \old(head))) && (waterLevel == \old(waterLevel))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive)))) - ProcedureContractResult [Line: 586]: Procedure Contract for changeMethaneLevel Derived contract for procedure changeMethaneLevel. Requires: (pumpRunning == 0) Ensures: ((pumpRunning == 0) && (((((cleanupTimeShifts == \old(cleanupTimeShifts)) && (head == \old(head))) && (waterLevel == \old(waterLevel))) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive)))) - ProcedureContractResult [Line: 724]: Procedure Contract for timeShift Derived contract for procedure timeShift. Requires: (pumpRunning == 0) Ensures: ((((pumpRunning == 0) && (\old(pumpRunning) == 0)) && (\old(waterLevel) == waterLevel)) && ((((cleanupTimeShifts == \old(cleanupTimeShifts)) && (head == \old(head))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (systemActive == \old(systemActive)))) - ProcedureContractResult [Line: 52]: Procedure Contract for cleanup Derived contract for procedure cleanup. Requires: 0 Ensures: (0 && ((((cleanupTimeShifts == \old(cleanupTimeShifts)) && (head == \old(head))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (systemActive == \old(systemActive)))) - ProcedureContractResult [Line: 574]: Procedure Contract for waterRise Derived contract for procedure waterRise. Requires: (pumpRunning == 0) Ensures: ((pumpRunning == 0) && (((((cleanupTimeShifts == \old(cleanupTimeShifts)) && (head == \old(head))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive)))) - ProcedureContractResult [Line: 756]: Procedure Contract for processEnvironment__wrappee__methaneQuery Derived contract for procedure processEnvironment__wrappee__methaneQuery. Requires: ((pumpRunning == 0) && (0 != systemActive)) Ensures: ((((pumpRunning == 0) && (\old(pumpRunning) == 0)) && (0 != systemActive)) && (((((cleanupTimeShifts == \old(cleanupTimeShifts)) && (head == \old(head))) && (waterLevel == \old(waterLevel))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (systemActive == \old(systemActive)))) - ProcedureContractResult [Line: 840]: Procedure Contract for isMethaneAlarm Derived contract for procedure isMethaneAlarm. Requires: 0 Ensures: (0 && ((((((cleanupTimeShifts == \old(cleanupTimeShifts)) && (head == \old(head))) && (waterLevel == \old(waterLevel))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive)))) RESULT: Ultimate proved your program to be correct! [2024-11-08 17:02:47,793 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481978cb-efa6-49c6-b5b8-56b6f556d2d9/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE