./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec4_product12.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c7c6ca5d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/minepump_spec4_product12.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 f629674af99a09af382dbe6cebebcc4fb4b60762fab54c6aa0b3a2dc7cf784d0 --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-08 15:15:33,341 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 15:15:33,397 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 15:15:33,402 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 15:15:33,402 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 15:15:33,423 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 15:15:33,424 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 15:15:33,424 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 15:15:33,425 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 15:15:33,428 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 15:15:33,428 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 15:15:33,428 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 15:15:33,428 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 15:15:33,429 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 15:15:33,429 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 15:15:33,429 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 15:15:33,429 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 15:15:33,429 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 15:15:33,430 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 15:15:33,430 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 15:15:33,431 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 15:15:33,432 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 15:15:33,432 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 15:15:33,432 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 15:15:33,432 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 15:15:33,432 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 15:15:33,432 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 15:15:33,433 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 15:15:33,433 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 15:15:33,433 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 15:15:33,433 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 15:15:33,433 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 15:15:33,433 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 15:15:33,433 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 15:15:33,434 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 15:15:33,434 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 15:15:33,434 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 15:15:33,434 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 15:15:33,434 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 15:15:33,434 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 15:15:33,434 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 15:15:33,436 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 15:15:33,436 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f629674af99a09af382dbe6cebebcc4fb4b60762fab54c6aa0b3a2dc7cf784d0 [2024-11-08 15:15:33,621 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 15:15:33,641 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 15:15:33,644 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 15:15:33,645 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 15:15:33,645 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 15:15:33,646 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product12.cil.c [2024-11-08 15:15:34,884 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 15:15:35,072 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 15:15:35,072 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product12.cil.c [2024-11-08 15:15:35,082 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af0cc2ec7/8568819fed44480a8fde03b6ecf79224/FLAG968105d83 [2024-11-08 15:15:35,094 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af0cc2ec7/8568819fed44480a8fde03b6ecf79224 [2024-11-08 15:15:35,096 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 15:15:35,098 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 15:15:35,101 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 15:15:35,102 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 15:15:35,106 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 15:15:35,107 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 03:15:35" (1/1) ... [2024-11-08 15:15:35,109 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@fe1b8e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:15:35, skipping insertion in model container [2024-11-08 15:15:35,110 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 03:15:35" (1/1) ... [2024-11-08 15:15:35,150 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 15:15:35,416 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product12.cil.c[17234,17247] [2024-11-08 15:15:35,425 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 15:15:35,436 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 15:15:35,444 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [49] [2024-11-08 15:15:35,445 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification4_spec.i","") [135] [2024-11-08 15:15:35,445 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [163] [2024-11-08 15:15:35,446 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [236] [2024-11-08 15:15:35,446 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [387] [2024-11-08 15:15:35,446 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [425] [2024-11-08 15:15:35,446 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [521] [2024-11-08 15:15:35,446 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [887] [2024-11-08 15:15:35,500 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product12.cil.c[17234,17247] [2024-11-08 15:15:35,500 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 15:15:35,517 INFO L204 MainTranslator]: Completed translation [2024-11-08 15:15:35,518 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:15:35 WrapperNode [2024-11-08 15:15:35,518 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 15:15:35,519 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 15:15:35,519 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 15:15:35,519 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 15:15:35,525 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:15:35" (1/1) ... [2024-11-08 15:15:35,541 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:15:35" (1/1) ... [2024-11-08 15:15:35,562 INFO L138 Inliner]: procedures = 52, calls = 93, calls flagged for inlining = 23, calls inlined = 17, statements flattened = 143 [2024-11-08 15:15:35,564 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 15:15:35,565 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 15:15:35,565 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 15:15:35,565 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 15:15:35,574 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:15:35" (1/1) ... [2024-11-08 15:15:35,574 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:15:35" (1/1) ... [2024-11-08 15:15:35,575 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:15:35" (1/1) ... [2024-11-08 15:15:35,587 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-08 15:15:35,587 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:15:35" (1/1) ... [2024-11-08 15:15:35,587 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:15:35" (1/1) ... [2024-11-08 15:15:35,591 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:15:35" (1/1) ... [2024-11-08 15:15:35,594 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:15:35" (1/1) ... [2024-11-08 15:15:35,600 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:15:35" (1/1) ... [2024-11-08 15:15:35,603 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:15:35" (1/1) ... [2024-11-08 15:15:35,605 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 15:15:35,605 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 15:15:35,606 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 15:15:35,606 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 15:15:35,607 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:15:35" (1/1) ... [2024-11-08 15:15:35,611 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 15:15:35,619 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 15:15:35,634 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 15:15:35,638 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 15:15:35,696 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 15:15:35,696 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-11-08 15:15:35,696 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-11-08 15:15:35,696 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-11-08 15:15:35,696 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-11-08 15:15:35,697 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2024-11-08 15:15:35,697 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2024-11-08 15:15:35,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 15:15:35,697 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2024-11-08 15:15:35,697 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2024-11-08 15:15:35,697 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 15:15:35,698 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 15:15:35,770 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 15:15:35,772 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 15:15:35,967 INFO L? ?]: Removed 27 outVars from TransFormulas that were not future-live. [2024-11-08 15:15:35,967 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 15:15:35,983 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 15:15:35,984 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-08 15:15:35,984 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 03:15:35 BoogieIcfgContainer [2024-11-08 15:15:35,984 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 15:15:35,986 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 15:15:35,986 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 15:15:35,990 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 15:15:35,990 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 03:15:35" (1/3) ... [2024-11-08 15:15:35,991 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5557af74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 03:15:35, skipping insertion in model container [2024-11-08 15:15:35,991 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:15:35" (2/3) ... [2024-11-08 15:15:35,992 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5557af74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 03:15:35, skipping insertion in model container [2024-11-08 15:15:35,993 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 03:15:35" (3/3) ... [2024-11-08 15:15:35,994 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product12.cil.c [2024-11-08 15:15:36,010 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 15:15:36,011 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 15:15:36,080 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 15:15:36,090 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;@733f17e5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 15:15:36,091 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 15:15:36,095 INFO L276 IsEmpty]: Start isEmpty. Operand has 63 states, 51 states have (on average 1.392156862745098) internal successors, (71), 55 states have internal predecessors, (71), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-08 15:15:36,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-08 15:15:36,102 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:15:36,103 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:15:36,104 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:15:36,108 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:15:36,108 INFO L85 PathProgramCache]: Analyzing trace with hash 1188594590, now seen corresponding path program 1 times [2024-11-08 15:15:36,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:15:36,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015372285] [2024-11-08 15:15:36,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:15:36,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:15:36,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:15:36,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:15:36,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:15:36,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015372285] [2024-11-08 15:15:36,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2015372285] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:15:36,303 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:15:36,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 15:15:36,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242961090] [2024-11-08 15:15:36,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:15:36,309 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-08 15:15:36,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:15:36,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-08 15:15:36,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 15:15:36,332 INFO L87 Difference]: Start difference. First operand has 63 states, 51 states have (on average 1.392156862745098) internal successors, (71), 55 states have internal predecessors, (71), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:15:36,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:15:36,352 INFO L93 Difference]: Finished difference Result 118 states and 161 transitions. [2024-11-08 15:15:36,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 15:15:36,354 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2024-11-08 15:15:36,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:15:36,382 INFO L225 Difference]: With dead ends: 118 [2024-11-08 15:15:36,382 INFO L226 Difference]: Without dead ends: 54 [2024-11-08 15:15:36,390 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 15:15:36,394 INFO L432 NwaCegarLoop]: 77 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, 77 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 15:15:36,395 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 15:15:36,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2024-11-08 15:15:36,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2024-11-08 15:15:36,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 44 states have (on average 1.2954545454545454) internal successors, (57), 47 states have internal predecessors, (57), 6 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-08 15:15:36,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 68 transitions. [2024-11-08 15:15:36,463 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 68 transitions. Word has length 19 [2024-11-08 15:15:36,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:15:36,463 INFO L471 AbstractCegarLoop]: Abstraction has 54 states and 68 transitions. [2024-11-08 15:15:36,463 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:15:36,464 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 68 transitions. [2024-11-08 15:15:36,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-08 15:15:36,465 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:15:36,466 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:15:36,466 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 15:15:36,466 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:15:36,467 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:15:36,467 INFO L85 PathProgramCache]: Analyzing trace with hash -926361742, now seen corresponding path program 1 times [2024-11-08 15:15:36,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:15:36,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010749562] [2024-11-08 15:15:36,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:15:36,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:15:36,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:15:36,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:15:36,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:15:36,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010749562] [2024-11-08 15:15:36,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1010749562] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:15:36,559 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:15:36,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 15:15:36,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202485244] [2024-11-08 15:15:36,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:15:36,564 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 15:15:36,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:15:36,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 15:15:36,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 15:15:36,565 INFO L87 Difference]: Start difference. First operand 54 states and 68 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:15:36,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:15:36,576 INFO L93 Difference]: Finished difference Result 69 states and 86 transitions. [2024-11-08 15:15:36,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 15:15:36,578 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2024-11-08 15:15:36,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:15:36,578 INFO L225 Difference]: With dead ends: 69 [2024-11-08 15:15:36,578 INFO L226 Difference]: Without dead ends: 45 [2024-11-08 15:15:36,579 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 15:15:36,580 INFO L432 NwaCegarLoop]: 55 mSDtfsCounter, 18 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 15:15:36,580 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 88 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 15:15:36,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2024-11-08 15:15:36,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2024-11-08 15:15:36,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 38 states have (on average 1.3157894736842106) internal successors, (50), 41 states have internal predecessors, (50), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-08 15:15:36,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 56 transitions. [2024-11-08 15:15:36,585 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 56 transitions. Word has length 20 [2024-11-08 15:15:36,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:15:36,585 INFO L471 AbstractCegarLoop]: Abstraction has 45 states and 56 transitions. [2024-11-08 15:15:36,585 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:15:36,586 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 56 transitions. [2024-11-08 15:15:36,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-08 15:15:36,587 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:15:36,587 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] [2024-11-08 15:15:36,587 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 15:15:36,588 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:15:36,588 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:15:36,588 INFO L85 PathProgramCache]: Analyzing trace with hash -953598743, now seen corresponding path program 1 times [2024-11-08 15:15:36,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:15:36,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022629425] [2024-11-08 15:15:36,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:15:36,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:15:36,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:15:36,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:15:36,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:15:36,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022629425] [2024-11-08 15:15:36,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1022629425] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:15:36,703 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:15:36,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 15:15:36,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948353844] [2024-11-08 15:15:36,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:15:36,704 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 15:15:36,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:15:36,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 15:15:36,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 15:15:36,705 INFO L87 Difference]: Start difference. First operand 45 states and 56 transitions. Second operand has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:15:36,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:15:36,756 INFO L93 Difference]: Finished difference Result 118 states and 153 transitions. [2024-11-08 15:15:36,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 15:15:36,758 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2024-11-08 15:15:36,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:15:36,761 INFO L225 Difference]: With dead ends: 118 [2024-11-08 15:15:36,761 INFO L226 Difference]: Without dead ends: 80 [2024-11-08 15:15:36,761 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:15:36,762 INFO L432 NwaCegarLoop]: 53 mSDtfsCounter, 49 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 15:15:36,765 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 200 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 15:15:36,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2024-11-08 15:15:36,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 75. [2024-11-08 15:15:36,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 62 states have (on average 1.3548387096774193) internal successors, (84), 67 states have internal predecessors, (84), 6 states have call successors, (6), 6 states have call predecessors, (6), 6 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2024-11-08 15:15:36,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 97 transitions. [2024-11-08 15:15:36,784 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 97 transitions. Word has length 25 [2024-11-08 15:15:36,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:15:36,785 INFO L471 AbstractCegarLoop]: Abstraction has 75 states and 97 transitions. [2024-11-08 15:15:36,785 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:15:36,785 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 97 transitions. [2024-11-08 15:15:36,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-08 15:15:36,786 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:15:36,786 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] [2024-11-08 15:15:36,786 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 15:15:36,786 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:15:36,787 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:15:36,787 INFO L85 PathProgramCache]: Analyzing trace with hash -1488202758, now seen corresponding path program 1 times [2024-11-08 15:15:36,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:15:36,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645135549] [2024-11-08 15:15:36,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:15:36,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:15:36,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:15:36,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:15:36,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:15:36,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645135549] [2024-11-08 15:15:36,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [645135549] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:15:36,911 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:15:36,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 15:15:36,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041876421] [2024-11-08 15:15:36,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:15:36,912 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 15:15:36,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:15:36,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 15:15:36,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-08 15:15:36,913 INFO L87 Difference]: Start difference. First operand 75 states and 97 transitions. Second operand has 8 states, 8 states have (on average 3.125) internal successors, (25), 7 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:15:37,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:15:37,080 INFO L93 Difference]: Finished difference Result 261 states and 367 transitions. [2024-11-08 15:15:37,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-08 15:15:37,080 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.125) internal successors, (25), 7 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2024-11-08 15:15:37,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:15:37,082 INFO L225 Difference]: With dead ends: 261 [2024-11-08 15:15:37,082 INFO L226 Difference]: Without dead ends: 193 [2024-11-08 15:15:37,083 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2024-11-08 15:15:37,084 INFO L432 NwaCegarLoop]: 49 mSDtfsCounter, 93 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 301 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 15:15:37,084 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 301 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 15:15:37,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2024-11-08 15:15:37,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 189. [2024-11-08 15:15:37,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189 states, 156 states have (on average 1.3333333333333333) internal successors, (208), 167 states have internal predecessors, (208), 16 states have call successors, (16), 16 states have call predecessors, (16), 16 states have return successors, (27), 16 states have call predecessors, (27), 16 states have call successors, (27) [2024-11-08 15:15:37,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 251 transitions. [2024-11-08 15:15:37,117 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 251 transitions. Word has length 26 [2024-11-08 15:15:37,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:15:37,118 INFO L471 AbstractCegarLoop]: Abstraction has 189 states and 251 transitions. [2024-11-08 15:15:37,118 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.125) internal successors, (25), 7 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:15:37,118 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 251 transitions. [2024-11-08 15:15:37,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-08 15:15:37,119 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:15:37,119 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:15:37,120 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 15:15:37,120 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:15:37,120 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:15:37,120 INFO L85 PathProgramCache]: Analyzing trace with hash 1542388661, now seen corresponding path program 1 times [2024-11-08 15:15:37,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:15:37,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044539204] [2024-11-08 15:15:37,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:15:37,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:15:37,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:15:37,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:15:37,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:15:37,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2044539204] [2024-11-08 15:15:37,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2044539204] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:15:37,176 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:15:37,176 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 15:15:37,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870271060] [2024-11-08 15:15:37,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:15:37,177 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 15:15:37,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:15:37,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 15:15:37,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 15:15:37,177 INFO L87 Difference]: Start difference. First operand 189 states and 251 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 2 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:15:37,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:15:37,203 INFO L93 Difference]: Finished difference Result 358 states and 484 transitions. [2024-11-08 15:15:37,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 15:15:37,215 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 2 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2024-11-08 15:15:37,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:15:37,216 INFO L225 Difference]: With dead ends: 358 [2024-11-08 15:15:37,217 INFO L226 Difference]: Without dead ends: 176 [2024-11-08 15:15:37,218 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 15:15:37,226 INFO L432 NwaCegarLoop]: 47 mSDtfsCounter, 33 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 15:15:37,226 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 47 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 15:15:37,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2024-11-08 15:15:37,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 176. [2024-11-08 15:15:37,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 143 states have (on average 1.2727272727272727) internal successors, (182), 154 states have internal predecessors, (182), 16 states have call successors, (16), 16 states have call predecessors, (16), 16 states have return successors, (21), 16 states have call predecessors, (21), 16 states have call successors, (21) [2024-11-08 15:15:37,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 219 transitions. [2024-11-08 15:15:37,258 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 219 transitions. Word has length 28 [2024-11-08 15:15:37,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:15:37,259 INFO L471 AbstractCegarLoop]: Abstraction has 176 states and 219 transitions. [2024-11-08 15:15:37,259 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 2 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:15:37,259 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 219 transitions. [2024-11-08 15:15:37,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-11-08 15:15:37,261 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:15:37,261 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-08 15:15:37,261 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-08 15:15:37,261 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:15:37,262 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:15:37,262 INFO L85 PathProgramCache]: Analyzing trace with hash 1578429454, now seen corresponding path program 1 times [2024-11-08 15:15:37,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:15:37,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2110731518] [2024-11-08 15:15:37,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:15:37,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:15:37,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:15:37,513 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 15:15:37,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:15:37,549 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-08 15:15:37,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:15:37,564 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-08 15:15:37,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:15:37,586 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-08 15:15:37,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:15:37,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2110731518] [2024-11-08 15:15:37,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2110731518] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 15:15:37,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [354551872] [2024-11-08 15:15:37,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:15:37,588 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 15:15:37,588 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 15:15:37,590 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 15:15:37,592 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 15:15:37,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:15:37,663 INFO L255 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-08 15:15:37,670 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 15:15:37,793 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-08 15:15:37,794 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 15:15:38,029 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 17 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:15:38,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [354551872] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 15:15:38,031 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 15:15:38,032 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 6, 7] total 14 [2024-11-08 15:15:38,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81506912] [2024-11-08 15:15:38,032 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 15:15:38,032 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-08 15:15:38,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:15:38,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-08 15:15:38,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2024-11-08 15:15:38,033 INFO L87 Difference]: Start difference. First operand 176 states and 219 transitions. Second operand has 15 states, 15 states have (on average 5.933333333333334) internal successors, (89), 13 states have internal predecessors, (89), 5 states have call successors, (11), 6 states have call predecessors, (11), 6 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-08 15:15:38,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:15:38,235 INFO L93 Difference]: Finished difference Result 237 states and 294 transitions. [2024-11-08 15:15:38,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-08 15:15:38,236 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 5.933333333333334) internal successors, (89), 13 states have internal predecessors, (89), 5 states have call successors, (11), 6 states have call predecessors, (11), 6 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 53 [2024-11-08 15:15:38,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:15:38,237 INFO L225 Difference]: With dead ends: 237 [2024-11-08 15:15:38,237 INFO L226 Difference]: Without dead ends: 0 [2024-11-08 15:15:38,237 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 101 SyntacticMatches, 4 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=128, Invalid=334, Unknown=0, NotChecked=0, Total=462 [2024-11-08 15:15:38,238 INFO L432 NwaCegarLoop]: 61 mSDtfsCounter, 124 mSDsluCounter, 368 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 429 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 15:15:38,238 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 429 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 15:15:38,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-08 15:15:38,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-08 15:15:38,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:15:38,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-08 15:15:38,239 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 53 [2024-11-08 15:15:38,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:15:38,239 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-08 15:15:38,240 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 5.933333333333334) internal successors, (89), 13 states have internal predecessors, (89), 5 states have call successors, (11), 6 states have call predecessors, (11), 6 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-08 15:15:38,241 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-08 15:15:38,242 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-08 15:15:38,245 INFO L782 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-08 15:15:38,261 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-08 15:15:38,446 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-08 15:15:38,448 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-11-08 15:15:38,450 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-08 15:15:38,872 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-08 15:15:38,909 WARN L156 FloydHoareUtils]: Requires clause for timeShift contained old-variable. Original clause: (and (let ((.cse0 (= ~pumpRunning~0 0))) (or (and .cse0 (<= 2 |old(~waterLevel~0)|)) (and .cse0 (= |old(~waterLevel~0)| 1)))) (= |old(~waterLevel~0)| ~waterLevel~0)) Eliminated clause: (let ((.cse0 (= ~pumpRunning~0 0))) (or (and .cse0 (= ~waterLevel~0 1)) (and .cse0 (<= 2 ~waterLevel~0)))) [2024-11-08 15:15:38,913 WARN L156 FloydHoareUtils]: Requires clause for waterRise contained old-variable. Original clause: (and (let ((.cse0 (= ~pumpRunning~0 0))) (or (and .cse0 (<= 2 |old(~waterLevel~0)|)) (and .cse0 (= |old(~waterLevel~0)| 1)))) (= |old(~waterLevel~0)| ~waterLevel~0)) Eliminated clause: (let ((.cse0 (= ~pumpRunning~0 0))) (or (and .cse0 (= ~waterLevel~0 1)) (and .cse0 (<= 2 ~waterLevel~0)))) [2024-11-08 15:15:38,915 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.11 03:15:38 BoogieIcfgContainer [2024-11-08 15:15:38,915 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-08 15:15:38,916 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 15:15:38,916 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 15:15:38,916 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 15:15:38,917 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 03:15:35" (3/4) ... [2024-11-08 15:15:38,919 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-08 15:15:38,922 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2024-11-08 15:15:38,922 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2024-11-08 15:15:38,922 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2024-11-08 15:15:38,922 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2024-11-08 15:15:38,927 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2024-11-08 15:15:38,928 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-11-08 15:15:38,928 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-08 15:15:38,929 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-08 15:15:38,929 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-08 15:15:39,023 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-08 15:15:39,024 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-08 15:15:39,024 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 15:15:39,024 INFO L158 Benchmark]: Toolchain (without parser) took 3927.12ms. Allocated memory was 136.3MB in the beginning and 197.1MB in the end (delta: 60.8MB). Free memory was 63.6MB in the beginning and 105.6MB in the end (delta: -42.0MB). Peak memory consumption was 20.9MB. Max. memory is 16.1GB. [2024-11-08 15:15:39,024 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 136.3MB. Free memory is still 96.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 15:15:39,025 INFO L158 Benchmark]: CACSL2BoogieTranslator took 416.81ms. Allocated memory was 136.3MB in the beginning and 163.6MB in the end (delta: 27.3MB). Free memory was 63.6MB in the beginning and 130.2MB in the end (delta: -66.6MB). Peak memory consumption was 25.6MB. Max. memory is 16.1GB. [2024-11-08 15:15:39,025 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.55ms. Allocated memory is still 163.6MB. Free memory was 130.2MB in the beginning and 128.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 15:15:39,025 INFO L158 Benchmark]: Boogie Preprocessor took 39.85ms. Allocated memory is still 163.6MB. Free memory was 128.1MB in the beginning and 126.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 15:15:39,025 INFO L158 Benchmark]: RCFGBuilder took 378.81ms. Allocated memory is still 163.6MB. Free memory was 126.1MB in the beginning and 110.5MB in the end (delta: 15.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-08 15:15:39,025 INFO L158 Benchmark]: TraceAbstraction took 2929.70ms. Allocated memory was 163.6MB in the beginning and 197.1MB in the end (delta: 33.6MB). Free memory was 109.6MB in the beginning and 111.9MB in the end (delta: -2.3MB). Peak memory consumption was 30.9MB. Max. memory is 16.1GB. [2024-11-08 15:15:39,026 INFO L158 Benchmark]: Witness Printer took 107.83ms. Allocated memory is still 197.1MB. Free memory was 111.9MB in the beginning and 105.6MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-08 15:15:39,027 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 136.3MB. Free memory is still 96.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 416.81ms. Allocated memory was 136.3MB in the beginning and 163.6MB in the end (delta: 27.3MB). Free memory was 63.6MB in the beginning and 130.2MB in the end (delta: -66.6MB). Peak memory consumption was 25.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.55ms. Allocated memory is still 163.6MB. Free memory was 130.2MB in the beginning and 128.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.85ms. Allocated memory is still 163.6MB. Free memory was 128.1MB in the beginning and 126.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 378.81ms. Allocated memory is still 163.6MB. Free memory was 126.1MB in the beginning and 110.5MB in the end (delta: 15.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 2929.70ms. Allocated memory was 163.6MB in the beginning and 197.1MB in the end (delta: 33.6MB). Free memory was 109.6MB in the beginning and 111.9MB in the end (delta: -2.3MB). Peak memory consumption was 30.9MB. Max. memory is 16.1GB. * Witness Printer took 107.83ms. Allocated memory is still 197.1MB. Free memory was 111.9MB in the beginning and 105.6MB in the end (delta: 6.3MB). 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,"Environment.i","") [49] - GenericResultAtLocation [Line: 135]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification4_spec.i","") [135] - GenericResultAtLocation [Line: 163]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [163] - GenericResultAtLocation [Line: 236]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [236] - GenericResultAtLocation [Line: 387]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [387] - GenericResultAtLocation [Line: 425]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [425] - GenericResultAtLocation [Line: 521]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [521] - GenericResultAtLocation [Line: 887]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [887] * 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: 892]: 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 5 procedures, 63 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.4s, OverallIterations: 6, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 322 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 317 mSDsluCounter, 1142 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 800 mSDsCounter, 30 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 246 IncrementalHoareTripleChecker+Invalid, 276 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 30 mSolverCounterUnsat, 342 mSDtfsCounter, 246 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 154 GetRequests, 111 SyntacticMatches, 4 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=189occurred in iteration=4, InterpolantAutomatonStates: 34, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 9 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 224 NumberOfCodeBlocks, 224 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 269 ConstructedInterpolants, 0 QuantifiedInterpolants, 702 SizeOfPredicates, 0 NumberOfNonLiveVariables, 196 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 8 InterpolantComputations, 5 PerfectInterpolantSequences, 36/60 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: 177]: Location Invariant Derived location invariant: 0 - InvariantResult [Line: 437]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 178]: Loop Invariant Derived loop invariant: ((((pumpRunning == 0) && (splverifierCounter == 0)) && (waterLevel == 1)) || (((pumpRunning == 0) && (2 <= waterLevel)) && (splverifierCounter == 0))) - ProcedureContractResult [Line: 82]: Procedure Contract for changeMethaneLevel Derived contract for procedure changeMethaneLevel. Requires: (((pumpRunning == 0) && (waterLevel == 1)) || ((pumpRunning == 0) && (2 <= waterLevel))) Ensures: ((((pumpRunning == 0) && (waterLevel == 1)) || ((pumpRunning == 0) && (2 <= waterLevel))) && (((((waterLevel == \old(waterLevel)) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (head == \old(head)))) - ProcedureContractResult [Line: 427]: Procedure Contract for cleanup Derived contract for procedure cleanup. Requires: 0 Ensures: (0 && (((((methaneLevelCritical == \old(methaneLevelCritical)) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (head == \old(head)))) - ProcedureContractResult [Line: 243]: Procedure Contract for timeShift Derived contract for procedure timeShift. Requires: (((pumpRunning == 0) && (waterLevel == 1)) || ((pumpRunning == 0) && (2 <= waterLevel))) Ensures: (((((pumpRunning == 0) && (2 <= \old(waterLevel))) || ((pumpRunning == 0) && (\old(waterLevel) == 1))) && (\old(waterLevel) == waterLevel)) && (((((methaneLevelCritical == \old(methaneLevelCritical)) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (head == \old(head)))) - ProcedureContractResult [Line: 70]: Procedure Contract for waterRise Derived contract for procedure waterRise. Requires: (((pumpRunning == 0) && (waterLevel == 1)) || ((pumpRunning == 0) && (2 <= waterLevel))) Ensures: ((((((pumpRunning == 0) && (2 <= \old(waterLevel))) || ((pumpRunning == 0) && (\old(waterLevel) == 1))) && ((\old(waterLevel) < 2) || (\old(waterLevel) == waterLevel))) && (2 <= waterLevel)) && (((((methaneLevelCritical == \old(methaneLevelCritical)) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (head == \old(head)))) RESULT: Ultimate proved your program to be correct! [2024-11-08 15:15:39,058 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE