./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product45.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8831cce1-81a8-482d-9c8d-089f2b150430/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8831cce1-81a8-482d-9c8d-089f2b150430/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8831cce1-81a8-482d-9c8d-089f2b150430/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8831cce1-81a8-482d-9c8d-089f2b150430/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product45.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8831cce1-81a8-482d-9c8d-089f2b150430/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8831cce1-81a8-482d-9c8d-089f2b150430/bin/uautomizer-verify-4GaUIPS5ZU --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 69f20c6619059452dea710c235d91f0e8ca980fcacc48c7e37668ab8a6397c50 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:00:20,538 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:00:20,646 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8831cce1-81a8-482d-9c8d-089f2b150430/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-31 22:00:20,651 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:00:20,651 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:00:20,674 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:00:20,674 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:00:20,675 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:00:20,675 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 22:00:20,676 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 22:00:20,676 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 22:00:20,677 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 22:00:20,677 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:00:20,678 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:00:20,678 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:00:20,679 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:00:20,679 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 22:00:20,680 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:00:20,680 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:00:20,680 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:00:20,681 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:00:20,682 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 22:00:20,682 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 22:00:20,682 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 22:00:20,683 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:00:20,683 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:00:20,683 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 22:00:20,684 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:00:20,684 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:00:20,685 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:00:20,685 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-31 22:00:20,685 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 22:00:20,686 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:00:20,686 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:00:20,687 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 22:00:20,687 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 22:00:20,687 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:00:20,688 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 22:00:20,688 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 22:00:20,688 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 22:00:20,689 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 22:00:20,689 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 22:00:20,690 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_8831cce1-81a8-482d-9c8d-089f2b150430/bin/uautomizer-verify-4GaUIPS5ZU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8831cce1-81a8-482d-9c8d-089f2b150430/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 69f20c6619059452dea710c235d91f0e8ca980fcacc48c7e37668ab8a6397c50 [2024-10-31 22:00:20,961 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:00:21,018 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:00:21,021 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:00:21,027 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:00:21,028 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:00:21,033 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8831cce1-81a8-482d-9c8d-089f2b150430/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/product-lines/minepump_spec2_product45.cil.c Unable to find full path for "g++" [2024-10-31 22:00:23,400 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:00:23,705 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:00:23,705 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8831cce1-81a8-482d-9c8d-089f2b150430/sv-benchmarks/c/product-lines/minepump_spec2_product45.cil.c [2024-10-31 22:00:23,727 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8831cce1-81a8-482d-9c8d-089f2b150430/bin/uautomizer-verify-4GaUIPS5ZU/data/88de9ed0e/03ab374c7d32499da6331c108cf6ad1b/FLAG93186b228 [2024-10-31 22:00:24,005 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8831cce1-81a8-482d-9c8d-089f2b150430/bin/uautomizer-verify-4GaUIPS5ZU/data/88de9ed0e/03ab374c7d32499da6331c108cf6ad1b [2024-10-31 22:00:24,008 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:00:24,010 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:00:24,012 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:00:24,012 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:00:24,021 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:00:24,024 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:00:24" (1/1) ... [2024-10-31 22:00:24,025 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7de256ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:24, skipping insertion in model container [2024-10-31 22:00:24,026 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:00:24" (1/1) ... [2024-10-31 22:00:24,096 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:00:24,367 WARN L251 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_8831cce1-81a8-482d-9c8d-089f2b150430/sv-benchmarks/c/product-lines/minepump_spec2_product45.cil.c[11292,11305] [2024-10-31 22:00:24,452 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:00:24,467 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:00:24,479 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [49] [2024-10-31 22:00:24,481 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [415] [2024-10-31 22:00:24,482 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [424] [2024-10-31 22:00:24,482 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [530] [2024-10-31 22:00:24,482 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [733] [2024-10-31 22:00:24,483 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [798] [2024-10-31 22:00:24,483 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [893] [2024-10-31 22:00:24,483 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [928] [2024-10-31 22:00:24,564 WARN L251 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_8831cce1-81a8-482d-9c8d-089f2b150430/sv-benchmarks/c/product-lines/minepump_spec2_product45.cil.c[11292,11305] [2024-10-31 22:00:24,604 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:00:24,638 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:00:24,638 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:24 WrapperNode [2024-10-31 22:00:24,639 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:00:24,640 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:00:24,640 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:00:24,640 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:00:24,647 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:24" (1/1) ... [2024-10-31 22:00:24,662 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:24" (1/1) ... [2024-10-31 22:00:24,692 INFO L138 Inliner]: procedures = 55, calls = 100, calls flagged for inlining = 22, calls inlined = 19, statements flattened = 193 [2024-10-31 22:00:24,692 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:00:24,693 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:00:24,694 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:00:24,694 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:00:24,709 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:24" (1/1) ... [2024-10-31 22:00:24,710 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:24" (1/1) ... [2024-10-31 22:00:24,712 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:24" (1/1) ... [2024-10-31 22:00:24,731 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]. [2024-10-31 22:00:24,731 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:24" (1/1) ... [2024-10-31 22:00:24,731 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:24" (1/1) ... [2024-10-31 22:00:24,737 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:24" (1/1) ... [2024-10-31 22:00:24,742 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:24" (1/1) ... [2024-10-31 22:00:24,744 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:24" (1/1) ... [2024-10-31 22:00:24,745 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:24" (1/1) ... [2024-10-31 22:00:24,748 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:00:24,749 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:00:24,749 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:00:24,749 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:00:24,750 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:24" (1/1) ... [2024-10-31 22:00:24,757 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:00:24,780 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8831cce1-81a8-482d-9c8d-089f2b150430/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:00:24,796 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8831cce1-81a8-482d-9c8d-089f2b150430/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 22:00:24,805 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8831cce1-81a8-482d-9c8d-089f2b150430/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 22:00:24,830 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:00:24,830 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2024-10-31 22:00:24,830 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2024-10-31 22:00:24,830 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2024-10-31 22:00:24,830 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2024-10-31 22:00:24,831 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-10-31 22:00:24,831 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-10-31 22:00:24,831 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-10-31 22:00:24,831 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-10-31 22:00:24,831 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2024-10-31 22:00:24,831 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2024-10-31 22:00:24,831 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2024-10-31 22:00:24,831 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2024-10-31 22:00:24,832 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2024-10-31 22:00:24,832 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2024-10-31 22:00:24,832 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-31 22:00:24,832 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2024-10-31 22:00:24,832 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2024-10-31 22:00:24,832 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:00:24,833 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:00:24,916 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:00:24,919 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:00:25,241 INFO L? ?]: Removed 41 outVars from TransFormulas that were not future-live. [2024-10-31 22:00:25,241 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:00:25,259 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:00:25,259 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-31 22:00:25,260 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:00:25 BoogieIcfgContainer [2024-10-31 22:00:25,260 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:00:25,263 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 22:00:25,263 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 22:00:25,267 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 22:00:25,267 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 10:00:24" (1/3) ... [2024-10-31 22:00:25,268 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33567e42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:00:25, skipping insertion in model container [2024-10-31 22:00:25,269 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:24" (2/3) ... [2024-10-31 22:00:25,269 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33567e42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:00:25, skipping insertion in model container [2024-10-31 22:00:25,269 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:00:25" (3/3) ... [2024-10-31 22:00:25,271 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product45.cil.c [2024-10-31 22:00:25,293 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 22:00:25,294 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-31 22:00:25,391 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:00:25,399 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;@6382ea10, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:00:25,399 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-31 22:00:25,404 INFO L276 IsEmpty]: Start isEmpty. Operand has 95 states, 71 states have (on average 1.380281690140845) internal successors, (98), 79 states have internal predecessors, (98), 14 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (14), 12 states have call predecessors, (14), 14 states have call successors, (14) [2024-10-31 22:00:25,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-10-31 22:00:25,416 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:00:25,417 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] [2024-10-31 22:00:25,417 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:00:25,423 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:25,423 INFO L85 PathProgramCache]: Analyzing trace with hash 1869668402, now seen corresponding path program 1 times [2024-10-31 22:00:25,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:25,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873130410] [2024-10-31 22:00:25,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:25,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:25,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:25,750 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-31 22:00:25,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:25,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:00:25,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:25,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1873130410] [2024-10-31 22:00:25,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1873130410] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:00:25,774 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:00:25,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:00:25,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493626572] [2024-10-31 22:00:25,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:00:25,784 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-31 22:00:25,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:25,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-31 22:00:25,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-31 22:00:25,819 INFO L87 Difference]: Start difference. First operand has 95 states, 71 states have (on average 1.380281690140845) internal successors, (98), 79 states have internal predecessors, (98), 14 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (14), 12 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-31 22:00:25,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:00:25,864 INFO L93 Difference]: Finished difference Result 181 states and 246 transitions. [2024-10-31 22:00:25,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-31 22:00:25,867 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 25 [2024-10-31 22:00:25,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:00:25,881 INFO L225 Difference]: With dead ends: 181 [2024-10-31 22:00:25,882 INFO L226 Difference]: Without dead ends: 86 [2024-10-31 22:00:25,887 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-31 22:00:25,893 INFO L432 NwaCegarLoop]: 120 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, 120 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 [2024-10-31 22:00:25,895 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:00:25,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2024-10-31 22:00:25,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2024-10-31 22:00:25,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 64 states have (on average 1.3125) internal successors, (84), 71 states have internal predecessors, (84), 14 states have call successors, (14), 8 states have call predecessors, (14), 7 states have return successors, (13), 11 states have call predecessors, (13), 13 states have call successors, (13) [2024-10-31 22:00:25,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 111 transitions. [2024-10-31 22:00:25,951 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 111 transitions. Word has length 25 [2024-10-31 22:00:25,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:00:25,952 INFO L471 AbstractCegarLoop]: Abstraction has 86 states and 111 transitions. [2024-10-31 22:00:25,952 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-31 22:00:25,953 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 111 transitions. [2024-10-31 22:00:25,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-10-31 22:00:25,956 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:00:25,956 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] [2024-10-31 22:00:25,956 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 22:00:25,957 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:00:25,958 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:25,958 INFO L85 PathProgramCache]: Analyzing trace with hash 224653099, now seen corresponding path program 1 times [2024-10-31 22:00:25,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:25,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392059229] [2024-10-31 22:00:25,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:25,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:26,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:26,155 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-31 22:00:26,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:26,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:00:26,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:26,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392059229] [2024-10-31 22:00:26,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [392059229] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:00:26,163 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:00:26,163 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:00:26,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417878227] [2024-10-31 22:00:26,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:00:26,165 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:00:26,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:26,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:00:26,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:00:26,167 INFO L87 Difference]: Start difference. First operand 86 states and 111 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-31 22:00:26,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:00:26,203 INFO L93 Difference]: Finished difference Result 137 states and 177 transitions. [2024-10-31 22:00:26,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:00:26,204 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 26 [2024-10-31 22:00:26,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:00:26,207 INFO L225 Difference]: With dead ends: 137 [2024-10-31 22:00:26,210 INFO L226 Difference]: Without dead ends: 77 [2024-10-31 22:00:26,211 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:00:26,213 INFO L432 NwaCegarLoop]: 98 mSDtfsCounter, 12 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 180 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 [2024-10-31 22:00:26,215 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 180 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:00:26,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2024-10-31 22:00:26,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2024-10-31 22:00:26,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 58 states have (on average 1.3275862068965518) internal successors, (77), 65 states have internal predecessors, (77), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 9 states have call predecessors, (11), 11 states have call successors, (11) [2024-10-31 22:00:26,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 99 transitions. [2024-10-31 22:00:26,233 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 99 transitions. Word has length 26 [2024-10-31 22:00:26,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:00:26,233 INFO L471 AbstractCegarLoop]: Abstraction has 77 states and 99 transitions. [2024-10-31 22:00:26,234 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-31 22:00:26,234 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 99 transitions. [2024-10-31 22:00:26,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-10-31 22:00:26,235 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:00:26,236 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] [2024-10-31 22:00:26,236 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-31 22:00:26,236 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:00:26,237 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:26,237 INFO L85 PathProgramCache]: Analyzing trace with hash 13787135, now seen corresponding path program 1 times [2024-10-31 22:00:26,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:26,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582996008] [2024-10-31 22:00:26,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:26,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:26,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:26,456 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-31 22:00:26,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:26,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:00:26,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:26,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1582996008] [2024-10-31 22:00:26,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1582996008] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:00:26,472 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:00:26,472 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:00:26,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658184377] [2024-10-31 22:00:26,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:00:26,474 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:00:26,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:26,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:00:26,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:00:26,478 INFO L87 Difference]: Start difference. First operand 77 states and 99 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 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) [2024-10-31 22:00:26,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:00:26,502 INFO L93 Difference]: Finished difference Result 146 states and 191 transitions. [2024-10-31 22:00:26,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:00:26,503 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 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 30 [2024-10-31 22:00:26,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:00:26,505 INFO L225 Difference]: With dead ends: 146 [2024-10-31 22:00:26,506 INFO L226 Difference]: Without dead ends: 77 [2024-10-31 22:00:26,507 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:00:26,508 INFO L432 NwaCegarLoop]: 97 mSDtfsCounter, 80 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 97 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 [2024-10-31 22:00:26,509 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 97 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:00:26,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2024-10-31 22:00:26,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2024-10-31 22:00:26,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 58 states have (on average 1.3103448275862069) internal successors, (76), 65 states have internal predecessors, (76), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 9 states have call predecessors, (11), 11 states have call successors, (11) [2024-10-31 22:00:26,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 98 transitions. [2024-10-31 22:00:26,525 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 98 transitions. Word has length 30 [2024-10-31 22:00:26,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:00:26,526 INFO L471 AbstractCegarLoop]: Abstraction has 77 states and 98 transitions. [2024-10-31 22:00:26,526 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 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) [2024-10-31 22:00:26,527 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 98 transitions. [2024-10-31 22:00:26,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-10-31 22:00:26,528 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:00:26,529 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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:00:26,529 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-31 22:00:26,530 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:00:26,530 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:26,531 INFO L85 PathProgramCache]: Analyzing trace with hash 689914158, now seen corresponding path program 1 times [2024-10-31 22:00:26,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:26,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952445099] [2024-10-31 22:00:26,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:26,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:26,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:26,716 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-31 22:00:26,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:26,751 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-31 22:00:26,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:26,755 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-10-31 22:00:26,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:26,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:00:26,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:26,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [952445099] [2024-10-31 22:00:26,761 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [952445099] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:00:26,761 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:00:26,761 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:00:26,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037049786] [2024-10-31 22:00:26,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:00:26,762 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 22:00:26,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:26,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 22:00:26,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:00:26,764 INFO L87 Difference]: Start difference. First operand 77 states and 98 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-31 22:00:27,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:00:27,285 INFO L93 Difference]: Finished difference Result 226 states and 288 transitions. [2024-10-31 22:00:27,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-31 22:00:27,289 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 40 [2024-10-31 22:00:27,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:00:27,291 INFO L225 Difference]: With dead ends: 226 [2024-10-31 22:00:27,291 INFO L226 Difference]: Without dead ends: 157 [2024-10-31 22:00:27,292 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-10-31 22:00:27,297 INFO L432 NwaCegarLoop]: 111 mSDtfsCounter, 181 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 278 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-31 22:00:27,298 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 278 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-31 22:00:27,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2024-10-31 22:00:27,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 151. [2024-10-31 22:00:27,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 114 states have (on average 1.2719298245614035) internal successors, (145), 122 states have internal predecessors, (145), 18 states have call successors, (18), 15 states have call predecessors, (18), 18 states have return successors, (23), 19 states have call predecessors, (23), 18 states have call successors, (23) [2024-10-31 22:00:27,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 186 transitions. [2024-10-31 22:00:27,330 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 186 transitions. Word has length 40 [2024-10-31 22:00:27,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:00:27,330 INFO L471 AbstractCegarLoop]: Abstraction has 151 states and 186 transitions. [2024-10-31 22:00:27,331 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-31 22:00:27,331 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 186 transitions. [2024-10-31 22:00:27,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-10-31 22:00:27,337 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:00:27,337 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:00:27,337 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-31 22:00:27,338 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:00:27,338 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:27,338 INFO L85 PathProgramCache]: Analyzing trace with hash 603540022, now seen corresponding path program 1 times [2024-10-31 22:00:27,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:27,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821538561] [2024-10-31 22:00:27,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:27,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:27,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:27,540 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-31 22:00:27,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:27,568 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-31 22:00:27,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:27,572 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-31 22:00:27,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:27,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:00:27,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:27,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821538561] [2024-10-31 22:00:27,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1821538561] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:00:27,580 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:00:27,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-31 22:00:27,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483120422] [2024-10-31 22:00:27,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:00:27,581 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:00:27,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:27,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:00:27,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:00:27,589 INFO L87 Difference]: Start difference. First operand 151 states and 186 transitions. Second operand has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 1 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-31 22:00:27,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:00:27,865 INFO L93 Difference]: Finished difference Result 294 states and 364 transitions. [2024-10-31 22:00:27,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-31 22:00:27,867 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 1 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 46 [2024-10-31 22:00:27,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:00:27,869 INFO L225 Difference]: With dead ends: 294 [2024-10-31 22:00:27,869 INFO L226 Difference]: Without dead ends: 151 [2024-10-31 22:00:27,872 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-10-31 22:00:27,874 INFO L432 NwaCegarLoop]: 83 mSDtfsCounter, 112 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 334 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-31 22:00:27,874 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 334 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-31 22:00:27,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2024-10-31 22:00:27,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 149. [2024-10-31 22:00:27,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 112 states have (on average 1.2410714285714286) internal successors, (139), 120 states have internal predecessors, (139), 18 states have call successors, (18), 15 states have call predecessors, (18), 18 states have return successors, (23), 19 states have call predecessors, (23), 18 states have call successors, (23) [2024-10-31 22:00:27,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 180 transitions. [2024-10-31 22:00:27,911 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 180 transitions. Word has length 46 [2024-10-31 22:00:27,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:00:27,912 INFO L471 AbstractCegarLoop]: Abstraction has 149 states and 180 transitions. [2024-10-31 22:00:27,912 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 1 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-31 22:00:27,912 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 180 transitions. [2024-10-31 22:00:27,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-10-31 22:00:27,913 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:00:27,916 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:00:27,916 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-31 22:00:27,916 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:00:27,917 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:27,917 INFO L85 PathProgramCache]: Analyzing trace with hash -1154968067, now seen corresponding path program 1 times [2024-10-31 22:00:27,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:27,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565725269] [2024-10-31 22:00:27,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:27,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:27,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:28,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-31 22:00:28,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:28,068 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-31 22:00:28,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:28,075 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-31 22:00:28,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:28,079 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-31 22:00:28,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:28,082 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-31 22:00:28,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:28,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565725269] [2024-10-31 22:00:28,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1565725269] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:00:28,082 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:00:28,083 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-31 22:00:28,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562433278] [2024-10-31 22:00:28,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:00:28,083 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:00:28,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:28,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:00:28,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:00:28,087 INFO L87 Difference]: Start difference. First operand 149 states and 180 transitions. Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-31 22:00:28,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:00:28,284 INFO L93 Difference]: Finished difference Result 295 states and 363 transitions. [2024-10-31 22:00:28,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:00:28,284 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 56 [2024-10-31 22:00:28,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:00:28,286 INFO L225 Difference]: With dead ends: 295 [2024-10-31 22:00:28,286 INFO L226 Difference]: Without dead ends: 154 [2024-10-31 22:00:28,287 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-10-31 22:00:28,292 INFO L432 NwaCegarLoop]: 80 mSDtfsCounter, 55 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 22:00:28,293 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 344 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 22:00:28,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2024-10-31 22:00:28,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 152. [2024-10-31 22:00:28,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 115 states have (on average 1.2347826086956522) internal successors, (142), 123 states have internal predecessors, (142), 18 states have call successors, (18), 15 states have call predecessors, (18), 18 states have return successors, (23), 19 states have call predecessors, (23), 18 states have call successors, (23) [2024-10-31 22:00:28,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 183 transitions. [2024-10-31 22:00:28,323 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 183 transitions. Word has length 56 [2024-10-31 22:00:28,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:00:28,323 INFO L471 AbstractCegarLoop]: Abstraction has 152 states and 183 transitions. [2024-10-31 22:00:28,323 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-31 22:00:28,323 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 183 transitions. [2024-10-31 22:00:28,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-10-31 22:00:28,325 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:00:28,325 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:00:28,329 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-31 22:00:28,329 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:00:28,330 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:28,330 INFO L85 PathProgramCache]: Analyzing trace with hash -453368193, now seen corresponding path program 1 times [2024-10-31 22:00:28,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:28,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170674742] [2024-10-31 22:00:28,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:28,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:28,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:28,434 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-31 22:00:28,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:28,506 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-31 22:00:28,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:28,514 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-31 22:00:28,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:28,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-31 22:00:28,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:28,524 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-31 22:00:28,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:28,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170674742] [2024-10-31 22:00:28,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [170674742] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:00:28,524 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:00:28,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-31 22:00:28,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259048033] [2024-10-31 22:00:28,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:00:28,525 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:00:28,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:28,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:00:28,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:00:28,526 INFO L87 Difference]: Start difference. First operand 152 states and 183 transitions. Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 5 states have internal predecessors, (45), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-31 22:00:28,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:00:28,745 INFO L93 Difference]: Finished difference Result 300 states and 368 transitions. [2024-10-31 22:00:28,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:00:28,746 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 5 states have internal predecessors, (45), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 56 [2024-10-31 22:00:28,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:00:28,748 INFO L225 Difference]: With dead ends: 300 [2024-10-31 22:00:28,748 INFO L226 Difference]: Without dead ends: 156 [2024-10-31 22:00:28,749 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-10-31 22:00:28,750 INFO L432 NwaCegarLoop]: 80 mSDtfsCounter, 123 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 267 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-31 22:00:28,750 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 267 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-31 22:00:28,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2024-10-31 22:00:28,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 154. [2024-10-31 22:00:28,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 117 states have (on average 1.2307692307692308) internal successors, (144), 125 states have internal predecessors, (144), 18 states have call successors, (18), 15 states have call predecessors, (18), 18 states have return successors, (23), 19 states have call predecessors, (23), 18 states have call successors, (23) [2024-10-31 22:00:28,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 185 transitions. [2024-10-31 22:00:28,773 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 185 transitions. Word has length 56 [2024-10-31 22:00:28,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:00:28,775 INFO L471 AbstractCegarLoop]: Abstraction has 154 states and 185 transitions. [2024-10-31 22:00:28,776 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 5 states have internal predecessors, (45), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-31 22:00:28,777 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 185 transitions. [2024-10-31 22:00:28,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-10-31 22:00:28,782 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:00:28,782 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:00:28,782 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-31 22:00:28,783 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:00:28,783 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:28,783 INFO L85 PathProgramCache]: Analyzing trace with hash -525754751, now seen corresponding path program 1 times [2024-10-31 22:00:28,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:28,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026109251] [2024-10-31 22:00:28,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:28,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:28,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:28,853 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-31 22:00:28,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:28,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-31 22:00:28,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:28,883 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-31 22:00:28,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:28,886 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-31 22:00:28,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:28,889 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-31 22:00:28,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:28,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026109251] [2024-10-31 22:00:28,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2026109251] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:00:28,890 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:00:28,890 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:00:28,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421532211] [2024-10-31 22:00:28,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:00:28,891 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 22:00:28,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:28,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 22:00:28,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:00:28,892 INFO L87 Difference]: Start difference. First operand 154 states and 185 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 4 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-31 22:00:29,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:00:29,191 INFO L93 Difference]: Finished difference Result 414 states and 523 transitions. [2024-10-31 22:00:29,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-31 22:00:29,192 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 4 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) Word has length 56 [2024-10-31 22:00:29,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:00:29,194 INFO L225 Difference]: With dead ends: 414 [2024-10-31 22:00:29,194 INFO L226 Difference]: Without dead ends: 268 [2024-10-31 22:00:29,195 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-31 22:00:29,196 INFO L432 NwaCegarLoop]: 118 mSDtfsCounter, 201 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 209 SdHoareTripleChecker+Valid, 277 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-31 22:00:29,197 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [209 Valid, 277 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-31 22:00:29,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2024-10-31 22:00:29,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 266. [2024-10-31 22:00:29,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 201 states have (on average 1.2238805970149254) internal successors, (246), 213 states have internal predecessors, (246), 33 states have call successors, (33), 30 states have call predecessors, (33), 31 states have return successors, (48), 33 states have call predecessors, (48), 33 states have call successors, (48) [2024-10-31 22:00:29,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 327 transitions. [2024-10-31 22:00:29,233 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 327 transitions. Word has length 56 [2024-10-31 22:00:29,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:00:29,233 INFO L471 AbstractCegarLoop]: Abstraction has 266 states and 327 transitions. [2024-10-31 22:00:29,234 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 4 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-31 22:00:29,234 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 327 transitions. [2024-10-31 22:00:29,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-10-31 22:00:29,236 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:00:29,237 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:00:29,237 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-31 22:00:29,237 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:00:29,237 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:29,238 INFO L85 PathProgramCache]: Analyzing trace with hash 1987351067, now seen corresponding path program 1 times [2024-10-31 22:00:29,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:29,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170730875] [2024-10-31 22:00:29,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:29,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:29,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:29,361 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-31 22:00:29,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:29,371 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-31 22:00:29,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:29,435 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-31 22:00:29,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:29,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-31 22:00:29,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:29,496 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-31 22:00:29,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:29,509 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-31 22:00:29,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:29,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170730875] [2024-10-31 22:00:29,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1170730875] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:00:29,510 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:00:29,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-31 22:00:29,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390623656] [2024-10-31 22:00:29,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:00:29,510 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-31 22:00:29,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:29,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-31 22:00:29,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2024-10-31 22:00:29,512 INFO L87 Difference]: Start difference. First operand 266 states and 327 transitions. Second operand has 12 states, 12 states have (on average 3.9166666666666665) internal successors, (47), 7 states have internal predecessors, (47), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (5), 5 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-31 22:00:30,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:00:30,495 INFO L93 Difference]: Finished difference Result 801 states and 1020 transitions. [2024-10-31 22:00:30,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-10-31 22:00:30,496 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.9166666666666665) internal successors, (47), 7 states have internal predecessors, (47), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (5), 5 states have call predecessors, (5), 2 states have call successors, (5) Word has length 60 [2024-10-31 22:00:30,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:00:30,502 INFO L225 Difference]: With dead ends: 801 [2024-10-31 22:00:30,502 INFO L226 Difference]: Without dead ends: 543 [2024-10-31 22:00:30,504 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 195 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=208, Invalid=784, Unknown=0, NotChecked=0, Total=992 [2024-10-31 22:00:30,504 INFO L432 NwaCegarLoop]: 60 mSDtfsCounter, 366 mSDsluCounter, 416 mSDsCounter, 0 mSdLazyCounter, 530 mSolverCounterSat, 132 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 373 SdHoareTripleChecker+Valid, 476 SdHoareTripleChecker+Invalid, 662 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 132 IncrementalHoareTripleChecker+Valid, 530 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-31 22:00:30,505 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [373 Valid, 476 Invalid, 662 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [132 Valid, 530 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-31 22:00:30,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 543 states. [2024-10-31 22:00:30,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 543 to 541. [2024-10-31 22:00:30,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 541 states, 403 states have (on average 1.1910669975186103) internal successors, (480), 431 states have internal predecessors, (480), 72 states have call successors, (72), 58 states have call predecessors, (72), 65 states have return successors, (111), 71 states have call predecessors, (111), 72 states have call successors, (111) [2024-10-31 22:00:30,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 541 states to 541 states and 663 transitions. [2024-10-31 22:00:30,580 INFO L78 Accepts]: Start accepts. Automaton has 541 states and 663 transitions. Word has length 60 [2024-10-31 22:00:30,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:00:30,580 INFO L471 AbstractCegarLoop]: Abstraction has 541 states and 663 transitions. [2024-10-31 22:00:30,580 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.9166666666666665) internal successors, (47), 7 states have internal predecessors, (47), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (5), 5 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-31 22:00:30,581 INFO L276 IsEmpty]: Start isEmpty. Operand 541 states and 663 transitions. [2024-10-31 22:00:30,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-10-31 22:00:30,583 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:00:30,583 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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] [2024-10-31 22:00:30,583 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-31 22:00:30,584 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:00:30,584 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:30,584 INFO L85 PathProgramCache]: Analyzing trace with hash 255377162, now seen corresponding path program 1 times [2024-10-31 22:00:30,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:30,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378648639] [2024-10-31 22:00:30,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:30,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:30,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:30,780 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-31 22:00:30,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:30,799 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-31 22:00:30,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:30,833 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-31 22:00:30,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:30,847 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-31 22:00:30,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:30,855 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-31 22:00:30,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:30,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-31 22:00:30,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:30,874 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-31 22:00:30,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:30,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-31 22:00:30,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:30,990 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-31 22:00:30,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:31,015 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-31 22:00:31,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:31,019 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-31 22:00:31,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:31,021 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-31 22:00:31,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:31,024 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 14 proven. 12 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-10-31 22:00:31,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:31,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378648639] [2024-10-31 22:00:31,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1378648639] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:00:31,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [49485748] [2024-10-31 22:00:31,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:31,026 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:00:31,026 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8831cce1-81a8-482d-9c8d-089f2b150430/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:00:31,028 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8831cce1-81a8-482d-9c8d-089f2b150430/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:00:31,033 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8831cce1-81a8-482d-9c8d-089f2b150430/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-31 22:00:31,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:31,164 INFO L255 TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-31 22:00:31,178 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:00:31,451 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-10-31 22:00:31,455 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 22:00:31,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [49485748] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:00:31,455 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-31 22:00:31,455 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [14] total 19 [2024-10-31 22:00:31,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447063146] [2024-10-31 22:00:31,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:00:31,456 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-31 22:00:31,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:31,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-31 22:00:31,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=294, Unknown=0, NotChecked=0, Total=342 [2024-10-31 22:00:31,458 INFO L87 Difference]: Start difference. First operand 541 states and 663 transitions. Second operand has 8 states, 8 states have (on average 9.625) internal successors, (77), 6 states have internal predecessors, (77), 3 states have call successors, (13), 3 states have call predecessors, (13), 5 states have return successors, (12), 5 states have call predecessors, (12), 3 states have call successors, (12) [2024-10-31 22:00:31,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:00:31,722 INFO L93 Difference]: Finished difference Result 1175 states and 1437 transitions. [2024-10-31 22:00:31,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-31 22:00:31,722 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 6 states have internal predecessors, (77), 3 states have call successors, (13), 3 states have call predecessors, (13), 5 states have return successors, (12), 5 states have call predecessors, (12), 3 states have call successors, (12) Word has length 108 [2024-10-31 22:00:31,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:00:31,724 INFO L225 Difference]: With dead ends: 1175 [2024-10-31 22:00:31,724 INFO L226 Difference]: Without dead ends: 0 [2024-10-31 22:00:31,728 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=60, Invalid=360, Unknown=0, NotChecked=0, Total=420 [2024-10-31 22:00:31,729 INFO L432 NwaCegarLoop]: 163 mSDtfsCounter, 57 mSDsluCounter, 566 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 729 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 22:00:31,730 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 729 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 22:00:31,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-10-31 22:00:31,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-10-31 22:00:31,732 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) [2024-10-31 22:00:31,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-10-31 22:00:31,733 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 108 [2024-10-31 22:00:31,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:00:31,733 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-31 22:00:31,734 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 6 states have internal predecessors, (77), 3 states have call successors, (13), 3 states have call predecessors, (13), 5 states have return successors, (12), 5 states have call predecessors, (12), 3 states have call successors, (12) [2024-10-31 22:00:31,734 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-10-31 22:00:31,734 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-10-31 22:00:31,737 INFO L782 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-10-31 22:00:31,759 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8831cce1-81a8-482d-9c8d-089f2b150430/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-10-31 22:00:31,941 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8831cce1-81a8-482d-9c8d-089f2b150430/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-10-31 22:00:31,943 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:00:31,946 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-10-31 22:00:35,842 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-10-31 22:00:35,888 WARN L156 FloydHoareUtils]: Requires clause for changeMethaneLevel contained old-variable. Original clause: (let ((.cse1 (= |old(~methaneLevelCritical~0)| 0))) (and (or (<= 1 ~methaneLevelCritical~0) (< |old(~methaneLevelCritical~0)| 1)) (let ((.cse0 (= 1 ~systemActive~0))) (or (and (= ~pumpRunning~0 0) (<= 1 |old(~methaneLevelCritical~0)|) .cse0) (and .cse1 .cse0))) (or (not .cse1) (= ~methaneLevelCritical~0 0)))) Eliminated clause: (exists ((|old(~methaneLevelCritical~0)| Int)) (let ((.cse1 (= |old(~methaneLevelCritical~0)| 0))) (and (or (< |old(~methaneLevelCritical~0)| 1) (< 0 ~methaneLevelCritical~0)) (let ((.cse0 (= 1 ~systemActive~0))) (or (and (= ~pumpRunning~0 0) (<= 1 |old(~methaneLevelCritical~0)|) .cse0) (and .cse1 .cse0))) (or (not .cse1) (= ~methaneLevelCritical~0 0))))) [2024-10-31 22:00:35,898 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-10-31 22:00:35,910 WARN L156 FloydHoareUtils]: Requires clause for timeShift contained old-variable. Original clause: (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (let ((.cse0 (= 1 ~systemActive~0))) (or (and (<= 1 ~methaneLevelCritical~0) .cse0) (and (= ~methaneLevelCritical~0 0) .cse0))) (= |old(~waterLevel~0)| ~waterLevel~0)) Eliminated clause: (let ((.cse0 (= 1 ~systemActive~0))) (or (and (<= 1 ~methaneLevelCritical~0) .cse0) (and (= ~methaneLevelCritical~0 0) .cse0))) [2024-10-31 22:00:35,936 WARN L156 FloydHoareUtils]: Requires clause for waterRise contained old-variable. Original clause: (and (let ((.cse0 (= 1 ~systemActive~0))) (or (and (= ~methaneLevelCritical~0 0) .cse0) (and (= ~pumpRunning~0 0) (<= 1 ~methaneLevelCritical~0) .cse0))) (= |old(~waterLevel~0)| ~waterLevel~0)) Eliminated clause: (let ((.cse0 (= 1 ~systemActive~0))) (or (and (= ~methaneLevelCritical~0 0) .cse0) (and (= ~pumpRunning~0 0) (<= 1 ~methaneLevelCritical~0) .cse0))) [2024-10-31 22:00:35,951 WARN L156 FloydHoareUtils]: Requires clause for processEnvironment__wrappee__methaneQuery contained old-variable. Original clause: (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (let ((.cse0 (= 1 ~systemActive~0))) (or (and (= ~methaneLevelCritical~0 0) .cse0) (and (<= 1 ~methaneLevelCritical~0) .cse0 (= |old(~pumpRunning~0)| 0))))) Eliminated clause: (let ((.cse0 (= 1 ~systemActive~0))) (or (and (= ~methaneLevelCritical~0 0) .cse0) (and (= ~pumpRunning~0 0) (<= 1 ~methaneLevelCritical~0) .cse0))) [2024-10-31 22:00:35,977 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.10 10:00:35 BoogieIcfgContainer [2024-10-31 22:00:35,977 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-31 22:00:35,978 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-31 22:00:35,978 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-31 22:00:35,978 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-31 22:00:35,979 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:00:25" (3/4) ... [2024-10-31 22:00:35,982 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-10-31 22:00:35,988 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2024-10-31 22:00:35,989 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2024-10-31 22:00:35,990 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2024-10-31 22:00:35,990 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2024-10-31 22:00:35,990 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2024-10-31 22:00:35,990 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2024-10-31 22:00:35,991 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__methaneQuery [2024-10-31 22:00:35,991 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2024-10-31 22:00:36,003 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2024-10-31 22:00:36,004 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-10-31 22:00:36,004 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-10-31 22:00:36,005 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-31 22:00:36,005 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-31 22:00:36,146 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8831cce1-81a8-482d-9c8d-089f2b150430/bin/uautomizer-verify-4GaUIPS5ZU/witness.graphml [2024-10-31 22:00:36,146 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8831cce1-81a8-482d-9c8d-089f2b150430/bin/uautomizer-verify-4GaUIPS5ZU/witness.yml [2024-10-31 22:00:36,146 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-31 22:00:36,147 INFO L158 Benchmark]: Toolchain (without parser) took 12137.00ms. Allocated memory was 140.5MB in the beginning and 224.4MB in the end (delta: 83.9MB). Free memory was 109.8MB in the beginning and 155.2MB in the end (delta: -45.4MB). Peak memory consumption was 39.2MB. Max. memory is 16.1GB. [2024-10-31 22:00:36,148 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 109.1MB. Free memory is still 66.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-31 22:00:36,148 INFO L158 Benchmark]: CACSL2BoogieTranslator took 627.62ms. Allocated memory is still 140.5MB. Free memory was 109.8MB in the beginning and 87.9MB in the end (delta: 21.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-10-31 22:00:36,148 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.64ms. Allocated memory is still 140.5MB. Free memory was 87.9MB in the beginning and 85.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-31 22:00:36,149 INFO L158 Benchmark]: Boogie Preprocessor took 54.77ms. Allocated memory is still 140.5MB. Free memory was 85.9MB in the beginning and 83.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-31 22:00:36,149 INFO L158 Benchmark]: RCFGBuilder took 511.53ms. Allocated memory is still 140.5MB. Free memory was 83.3MB in the beginning and 65.4MB in the end (delta: 17.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-10-31 22:00:36,150 INFO L158 Benchmark]: TraceAbstraction took 10714.16ms. Allocated memory was 140.5MB in the beginning and 224.4MB in the end (delta: 83.9MB). Free memory was 65.0MB in the beginning and 162.5MB in the end (delta: -97.6MB). Peak memory consumption was 68.5MB. Max. memory is 16.1GB. [2024-10-31 22:00:36,151 INFO L158 Benchmark]: Witness Printer took 169.08ms. Allocated memory is still 224.4MB. Free memory was 162.5MB in the beginning and 155.2MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-10-31 22:00:36,153 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 109.1MB. Free memory is still 66.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 627.62ms. Allocated memory is still 140.5MB. Free memory was 109.8MB in the beginning and 87.9MB in the end (delta: 21.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 52.64ms. Allocated memory is still 140.5MB. Free memory was 87.9MB in the beginning and 85.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 54.77ms. Allocated memory is still 140.5MB. Free memory was 85.9MB in the beginning and 83.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 511.53ms. Allocated memory is still 140.5MB. Free memory was 83.3MB in the beginning and 65.4MB in the end (delta: 17.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 10714.16ms. Allocated memory was 140.5MB in the beginning and 224.4MB in the end (delta: 83.9MB). Free memory was 65.0MB in the beginning and 162.5MB in the end (delta: -97.6MB). Peak memory consumption was 68.5MB. Max. memory is 16.1GB. * Witness Printer took 169.08ms. Allocated memory is still 224.4MB. Free memory was 162.5MB in the beginning and 155.2MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. 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,"libacc.i","") [49] - GenericResultAtLocation [Line: 415]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [415] - GenericResultAtLocation [Line: 424]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [424] - GenericResultAtLocation [Line: 530]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [530] - GenericResultAtLocation [Line: 733]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [733] - GenericResultAtLocation [Line: 798]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [798] - GenericResultAtLocation [Line: 893]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [893] - GenericResultAtLocation [Line: 928]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [928] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression * 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: 420]: 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, 95 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 6.6s, OverallIterations: 10, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1225 SdHoareTripleChecker+Valid, 1.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1187 mSDsluCounter, 3102 SdHoareTripleChecker+Invalid, 1.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2092 mSDsCounter, 326 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1314 IncrementalHoareTripleChecker+Invalid, 1640 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 326 mSolverCounterUnsat, 1010 mSDtfsCounter, 1314 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 282 GetRequests, 197 SyntacticMatches, 0 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 252 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=541occurred in iteration=9, InterpolantAutomatonStates: 76, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 10 MinimizatonAttempts, 16 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.2s InterpolantComputationTime, 611 NumberOfCodeBlocks, 611 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 600 ConstructedInterpolants, 0 QuantifiedInterpolants, 1106 SizeOfPredicates, 1 NumberOfNonLiveVariables, 342 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 11 InterpolantComputations, 10 PerfectInterpolantSequences, 88/100 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: 744]: Loop Invariant Derived loop invariant: ((((methaneLevelCritical == 0) && (1 == systemActive)) && (splverifierCounter == 0)) || ((((pumpRunning == 0) && (1 <= methaneLevelCritical)) && (1 == systemActive)) && (splverifierCounter == 0))) - InvariantResult [Line: 437]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 743]: Location Invariant Derived location invariant: 0 - ProcedureContractResult [Line: 566]: Procedure Contract for processEnvironment__wrappee__base Derived contract for procedure processEnvironment__wrappee__base. Requires: (((methaneLevelCritical == 0) && (1 == systemActive)) || (((pumpRunning == 0) && (1 <= methaneLevelCritical)) && (1 == systemActive))) Ensures: ((((methaneLevelCritical == 0) && (1 == systemActive)) || (((pumpRunning == 0) && (1 <= methaneLevelCritical)) && (1 == systemActive))) && (((((((head == \old(head)) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive))) && (waterLevel == \old(waterLevel))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (methAndRunningLastTime == \old(methAndRunningLastTime)))) - ProcedureContractResult [Line: 826]: Procedure Contract for changeMethaneLevel Derived contract for procedure changeMethaneLevel. Ensures: (((((\old(methaneLevelCritical) != 0) || (0 < methaneLevelCritical)) && ((((pumpRunning == 0) && (1 <= \old(methaneLevelCritical))) && (1 == systemActive)) || ((\old(methaneLevelCritical) == 0) && (1 == systemActive)))) && ((methaneLevelCritical == 0) || (\old(methaneLevelCritical) < 1))) && ((((((head == \old(head)) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive))) && (waterLevel == \old(waterLevel))) && (methAndRunningLastTime == \old(methAndRunningLastTime)))) - ProcedureContractResult [Line: 838]: Procedure Contract for isMethaneLevelCritical Derived contract for procedure isMethaneLevelCritical. Requires: (((1 <= methaneLevelCritical) && (1 == systemActive)) || ((methaneLevelCritical == 0) && (1 == systemActive))) Ensures: (((((1 <= methaneLevelCritical) && (1 == systemActive)) || ((methaneLevelCritical == 0) && (1 == systemActive))) && (\result == methaneLevelCritical)) && (((((((head == \old(head)) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive))) && (waterLevel == \old(waterLevel))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (methAndRunningLastTime == \old(methAndRunningLastTime)))) - ProcedureContractResult [Line: 542]: Procedure Contract for timeShift Derived contract for procedure timeShift. Requires: (((1 <= methaneLevelCritical) && (1 == systemActive)) || ((methaneLevelCritical == 0) && (1 == systemActive))) Ensures: ((((((((pumpRunning == 0) && (\old(waterLevel) == waterLevel)) || ((pumpRunning == \old(pumpRunning)) && (\old(pumpRunning) != 0))) || ((\old(pumpRunning) != 0) && (pumpRunning == 0))) || ((2 <= waterLevel) && (\old(waterLevel) == waterLevel))) && (((1 <= methaneLevelCritical) && (1 == systemActive)) || ((methaneLevelCritical == 0) && (1 == systemActive)))) && ((((pumpRunning == 0) && (\old(waterLevel) == waterLevel)) || ((\old(pumpRunning) != 0) && (pumpRunning == 0))) || (methaneLevelCritical < 1))) && ((((head == \old(head)) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (systemActive == \old(systemActive))) && (methaneLevelCritical == \old(methaneLevelCritical)))) - ProcedureContractResult [Line: 427]: Procedure Contract for cleanup Derived contract for procedure cleanup. Requires: 0 Ensures: (0 && ((((head == \old(head)) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (systemActive == \old(systemActive))) && (methaneLevelCritical == \old(methaneLevelCritical)))) - ProcedureContractResult [Line: 814]: Procedure Contract for waterRise Derived contract for procedure waterRise. Requires: (((methaneLevelCritical == 0) && (1 == systemActive)) || (((pumpRunning == 0) && (1 <= methaneLevelCritical)) && (1 == systemActive))) Ensures: ((((((methaneLevelCritical == 0) && (1 == systemActive)) || (((pumpRunning == 0) && (1 <= methaneLevelCritical)) && (1 == systemActive))) && (((pumpRunning != 0) || (\old(waterLevel) != 1)) || (1 < waterLevel))) && ((\old(waterLevel) < 2) || (\old(waterLevel) == waterLevel))) && ((((((head == \old(head)) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (methAndRunningLastTime == \old(methAndRunningLastTime)))) - ProcedureContractResult [Line: 574]: Procedure Contract for processEnvironment__wrappee__methaneQuery Derived contract for procedure processEnvironment__wrappee__methaneQuery. Requires: (((methaneLevelCritical == 0) && (1 == systemActive)) || (((pumpRunning == 0) && (1 <= methaneLevelCritical)) && (1 == systemActive))) Ensures: ((((((pumpRunning == 0) || (methaneLevelCritical < 1)) && (((1 <= methaneLevelCritical) && (1 == systemActive)) || ((methaneLevelCritical == 0) && (1 == systemActive)))) && (((\old(pumpRunning) != 0) || (pumpRunning == 0)) || (1 < waterLevel))) && ((pumpRunning == \old(pumpRunning)) || (\old(pumpRunning) == 0))) && ((((((head == \old(head)) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (systemActive == \old(systemActive))) && (waterLevel == \old(waterLevel))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (methAndRunningLastTime == \old(methAndRunningLastTime)))) - ProcedureContractResult [Line: 658]: Procedure Contract for isMethaneAlarm Derived contract for procedure isMethaneAlarm. Requires: ((((((methaneLevelCritical == 0) && (2 <= waterLevel)) && (1 == systemActive)) || (((pumpRunning != 0) && (methaneLevelCritical == 0)) && (1 == systemActive))) || (((1 <= methaneLevelCritical) && (2 <= waterLevel)) && (1 == systemActive))) || (((1 <= methaneLevelCritical) && (pumpRunning != 0)) && (1 == systemActive))) Ensures: ((((((((methaneLevelCritical == 0) && (2 <= waterLevel)) && (1 == systemActive)) || (((pumpRunning != 0) && (methaneLevelCritical == 0)) && (1 == systemActive))) || (((1 <= methaneLevelCritical) && (2 <= waterLevel)) && (1 == systemActive))) || (((1 <= methaneLevelCritical) && (pumpRunning != 0)) && (1 == systemActive))) && (\result == methaneLevelCritical)) && (((((((head == \old(head)) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive))) && (waterLevel == \old(waterLevel))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (methAndRunningLastTime == \old(methAndRunningLastTime)))) RESULT: Ultimate proved your program to be correct! [2024-10-31 22:00:36,199 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8831cce1-81a8-482d-9c8d-089f2b150430/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE