./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec4_product27.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 803cd42f Calling Ultimate with: /root/.sdkman/candidates/java/current/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_product27.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 707a68b5ae5daf5497cfeaeef06b8e51a77f018401ec73338bde503119bd77ef --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 02:05:33,660 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 02:05:33,725 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-22 02:05:33,729 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 02:05:33,730 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 02:05:33,752 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 02:05:33,755 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 02:05:33,755 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 02:05:33,755 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 02:05:33,756 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 02:05:33,756 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 02:05:33,756 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 02:05:33,757 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 02:05:33,758 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 02:05:33,759 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 02:05:33,759 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 02:05:33,760 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 02:05:33,760 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 02:05:33,763 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 02:05:33,763 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 02:05:33,764 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 02:05:33,764 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 02:05:33,764 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 02:05:33,765 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 02:05:33,765 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 02:05:33,765 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 02:05:33,765 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 02:05:33,765 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 02:05:33,766 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 02:05:33,766 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 02:05:33,766 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 02:05:33,766 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 02:05:33,766 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 02:05:33,767 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 02:05:33,767 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 02:05:33,767 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 02:05:33,769 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 02:05:33,770 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 02:05:33,770 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 02:05:33,771 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 02:05:33,771 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 02:05:33,771 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 02:05:33,771 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 707a68b5ae5daf5497cfeaeef06b8e51a77f018401ec73338bde503119bd77ef [2024-11-22 02:05:34,037 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 02:05:34,061 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 02:05:34,063 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 02:05:34,064 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 02:05:34,065 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 02:05:34,066 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product27.cil.c [2024-11-22 02:05:35,468 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 02:05:35,719 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 02:05:35,720 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product27.cil.c [2024-11-22 02:05:35,736 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/55d7bf91f/d80a96646d794e5981cb8ac9b64aa5b9/FLAGa07b64e4f [2024-11-22 02:05:35,750 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/55d7bf91f/d80a96646d794e5981cb8ac9b64aa5b9 [2024-11-22 02:05:35,753 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 02:05:35,754 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 02:05:35,755 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 02:05:35,755 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 02:05:35,761 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 02:05:35,761 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:05:35" (1/1) ... [2024-11-22 02:05:35,762 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f5f519e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:05:35, skipping insertion in model container [2024-11-22 02:05:35,762 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:05:35" (1/1) ... [2024-11-22 02:05:35,807 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 02:05:36,027 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_product27.cil.c[2897,2910] [2024-11-22 02:05:36,125 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 02:05:36,133 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 02:05:36,144 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [49] [2024-11-22 02:05:36,146 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [153] [2024-11-22 02:05:36,146 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification4_spec.i","") [162] [2024-11-22 02:05:36,147 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [190] [2024-11-22 02:05:36,150 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [283] [2024-11-22 02:05:36,151 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [351] [2024-11-22 02:05:36,151 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [538] [2024-11-22 02:05:36,151 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [573] [2024-11-22 02:05:36,162 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_product27.cil.c[2897,2910] [2024-11-22 02:05:36,215 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 02:05:36,244 INFO L204 MainTranslator]: Completed translation [2024-11-22 02:05:36,244 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:05:36 WrapperNode [2024-11-22 02:05:36,245 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 02:05:36,246 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 02:05:36,246 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 02:05:36,246 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 02:05:36,253 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:05:36" (1/1) ... [2024-11-22 02:05:36,266 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:05:36" (1/1) ... [2024-11-22 02:05:36,291 INFO L138 Inliner]: procedures = 54, calls = 97, calls flagged for inlining = 23, calls inlined = 17, statements flattened = 169 [2024-11-22 02:05:36,292 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 02:05:36,292 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 02:05:36,293 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 02:05:36,293 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 02:05:36,310 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:05:36" (1/1) ... [2024-11-22 02:05:36,314 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:05:36" (1/1) ... [2024-11-22 02:05:36,317 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:05:36" (1/1) ... [2024-11-22 02:05:36,341 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]. [2024-11-22 02:05:36,345 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:05:36" (1/1) ... [2024-11-22 02:05:36,345 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:05:36" (1/1) ... [2024-11-22 02:05:36,349 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:05:36" (1/1) ... [2024-11-22 02:05:36,356 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:05:36" (1/1) ... [2024-11-22 02:05:36,361 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:05:36" (1/1) ... [2024-11-22 02:05:36,362 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:05:36" (1/1) ... [2024-11-22 02:05:36,364 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 02:05:36,366 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 02:05:36,366 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 02:05:36,367 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 02:05:36,368 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:05:36" (1/1) ... [2024-11-22 02:05:36,373 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 02:05:36,383 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 02:05:36,402 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) [2024-11-22 02:05:36,405 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 [2024-11-22 02:05:36,458 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 02:05:36,459 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2024-11-22 02:05:36,459 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2024-11-22 02:05:36,459 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-11-22 02:05:36,459 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-11-22 02:05:36,459 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-11-22 02:05:36,459 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-11-22 02:05:36,460 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2024-11-22 02:05:36,460 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2024-11-22 02:05:36,460 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2024-11-22 02:05:36,460 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2024-11-22 02:05:36,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 02:05:36,461 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2024-11-22 02:05:36,461 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2024-11-22 02:05:36,461 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 02:05:36,462 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 02:05:36,552 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 02:05:36,554 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 02:05:36,795 INFO L? ?]: Removed 36 outVars from TransFormulas that were not future-live. [2024-11-22 02:05:36,795 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 02:05:36,808 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 02:05:36,809 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-22 02:05:36,809 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:05:36 BoogieIcfgContainer [2024-11-22 02:05:36,809 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 02:05:36,811 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 02:05:36,811 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 02:05:36,814 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 02:05:36,814 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 02:05:35" (1/3) ... [2024-11-22 02:05:36,815 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1276e125 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:05:36, skipping insertion in model container [2024-11-22 02:05:36,815 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:05:36" (2/3) ... [2024-11-22 02:05:36,815 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1276e125 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:05:36, skipping insertion in model container [2024-11-22 02:05:36,815 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:05:36" (3/3) ... [2024-11-22 02:05:36,816 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product27.cil.c [2024-11-22 02:05:36,828 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 02:05:36,829 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-22 02:05:36,874 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 02:05:36,879 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;@7369319a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 02:05:36,879 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-22 02:05:36,886 INFO L276 IsEmpty]: Start isEmpty. Operand has 76 states, 58 states have (on average 1.396551724137931) internal successors, (81), 65 states have internal predecessors, (81), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 8 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-22 02:05:36,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-22 02:05:36,894 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:05:36,895 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:05:36,895 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:05:36,900 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:05:36,900 INFO L85 PathProgramCache]: Analyzing trace with hash 1407183598, now seen corresponding path program 1 times [2024-11-22 02:05:36,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:05:36,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996965352] [2024-11-22 02:05:36,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:05:36,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:05:37,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:05:37,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:05:37,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:05:37,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996965352] [2024-11-22 02:05:37,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [996965352] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:05:37,075 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:05:37,075 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 02:05:37,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121876138] [2024-11-22 02:05:37,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:05:37,080 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-22 02:05:37,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:05:37,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-22 02:05:37,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-22 02:05:37,099 INFO L87 Difference]: Start difference. First operand has 76 states, 58 states have (on average 1.396551724137931) internal successors, (81), 65 states have internal predecessors, (81), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 8 states have call predecessors, (10), 10 states have call successors, (10) 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) [2024-11-22 02:05:37,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:05:37,124 INFO L93 Difference]: Finished difference Result 144 states and 197 transitions. [2024-11-22 02:05:37,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-22 02:05:37,126 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 [2024-11-22 02:05:37,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:05:37,133 INFO L225 Difference]: With dead ends: 144 [2024-11-22 02:05:37,133 INFO L226 Difference]: Without dead ends: 67 [2024-11-22 02:05:37,136 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 [2024-11-22 02:05:37,138 INFO L432 NwaCegarLoop]: 95 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, 95 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 [2024-11-22 02:05:37,139 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:05:37,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2024-11-22 02:05:37,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2024-11-22 02:05:37,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 51 states have (on average 1.3137254901960784) internal successors, (67), 57 states have internal predecessors, (67), 10 states have call successors, (10), 6 states have call predecessors, (10), 5 states have return successors, (9), 7 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-22 02:05:37,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 86 transitions. [2024-11-22 02:05:37,172 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 86 transitions. Word has length 19 [2024-11-22 02:05:37,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:05:37,173 INFO L471 AbstractCegarLoop]: Abstraction has 67 states and 86 transitions. [2024-11-22 02:05:37,173 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) [2024-11-22 02:05:37,173 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 86 transitions. [2024-11-22 02:05:37,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-22 02:05:37,175 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:05:37,175 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] [2024-11-22 02:05:37,176 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-22 02:05:37,176 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:05:37,177 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:05:37,177 INFO L85 PathProgramCache]: Analyzing trace with hash 321226629, now seen corresponding path program 1 times [2024-11-22 02:05:37,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:05:37,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624223974] [2024-11-22 02:05:37,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:05:37,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:05:37,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:05:37,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:05:37,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:05:37,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624223974] [2024-11-22 02:05:37,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [624223974] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:05:37,287 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:05:37,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 02:05:37,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586952041] [2024-11-22 02:05:37,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:05:37,289 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 02:05:37,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:05:37,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 02:05:37,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 02:05:37,290 INFO L87 Difference]: Start difference. First operand 67 states and 86 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) [2024-11-22 02:05:37,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:05:37,317 INFO L93 Difference]: Finished difference Result 96 states and 122 transitions. [2024-11-22 02:05:37,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 02:05:37,318 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 [2024-11-22 02:05:37,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:05:37,319 INFO L225 Difference]: With dead ends: 96 [2024-11-22 02:05:37,319 INFO L226 Difference]: Without dead ends: 58 [2024-11-22 02:05:37,320 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 [2024-11-22 02:05:37,321 INFO L432 NwaCegarLoop]: 73 mSDtfsCounter, 16 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 125 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 [2024-11-22 02:05:37,322 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 125 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:05:37,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2024-11-22 02:05:37,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2024-11-22 02:05:37,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 45 states have (on average 1.3333333333333333) internal successors, (60), 51 states have internal predecessors, (60), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 5 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-22 02:05:37,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 74 transitions. [2024-11-22 02:05:37,337 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 74 transitions. Word has length 20 [2024-11-22 02:05:37,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:05:37,337 INFO L471 AbstractCegarLoop]: Abstraction has 58 states and 74 transitions. [2024-11-22 02:05:37,338 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) [2024-11-22 02:05:37,338 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 74 transitions. [2024-11-22 02:05:37,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-22 02:05:37,340 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:05:37,340 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:05:37,340 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 02:05:37,341 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:05:37,341 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:05:37,344 INFO L85 PathProgramCache]: Analyzing trace with hash 1713085083, now seen corresponding path program 1 times [2024-11-22 02:05:37,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:05:37,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607346336] [2024-11-22 02:05:37,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:05:37,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:05:37,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:05:37,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:05:37,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:05:37,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607346336] [2024-11-22 02:05:37,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [607346336] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:05:37,591 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:05:37,591 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 02:05:37,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170119735] [2024-11-22 02:05:37,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:05:37,592 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 02:05:37,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:05:37,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 02:05:37,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-22 02:05:37,593 INFO L87 Difference]: Start difference. First operand 58 states and 74 transitions. Second operand has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:05:37,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:05:37,759 INFO L93 Difference]: Finished difference Result 197 states and 259 transitions. [2024-11-22 02:05:37,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 02:05:37,761 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2024-11-22 02:05:37,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:05:37,765 INFO L225 Difference]: With dead ends: 197 [2024-11-22 02:05:37,767 INFO L226 Difference]: Without dead ends: 146 [2024-11-22 02:05:37,767 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-22 02:05:37,770 INFO L432 NwaCegarLoop]: 83 mSDtfsCounter, 121 mSDsluCounter, 269 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 02:05:37,771 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 352 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 02:05:37,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2024-11-22 02:05:37,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 140. [2024-11-22 02:05:37,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 107 states have (on average 1.3738317757009346) internal successors, (147), 121 states have internal predecessors, (147), 18 states have call successors, (18), 14 states have call predecessors, (18), 14 states have return successors, (19), 12 states have call predecessors, (19), 18 states have call successors, (19) [2024-11-22 02:05:37,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 184 transitions. [2024-11-22 02:05:37,807 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 184 transitions. Word has length 24 [2024-11-22 02:05:37,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:05:37,807 INFO L471 AbstractCegarLoop]: Abstraction has 140 states and 184 transitions. [2024-11-22 02:05:37,807 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:05:37,808 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 184 transitions. [2024-11-22 02:05:37,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-22 02:05:37,809 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:05:37,809 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] [2024-11-22 02:05:37,811 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-22 02:05:37,811 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:05:37,812 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:05:37,812 INFO L85 PathProgramCache]: Analyzing trace with hash -1716928239, now seen corresponding path program 1 times [2024-11-22 02:05:37,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:05:37,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20623173] [2024-11-22 02:05:37,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:05:37,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:05:37,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:05:38,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:05:38,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:05:38,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [20623173] [2024-11-22 02:05:38,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [20623173] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:05:38,017 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:05:38,017 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-22 02:05:38,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956360553] [2024-11-22 02:05:38,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:05:38,018 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-22 02:05:38,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:05:38,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-22 02:05:38,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-22 02:05:38,019 INFO L87 Difference]: Start difference. First operand 140 states and 184 transitions. Second operand has 8 states, 8 states have (on average 3.375) internal successors, (27), 7 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) [2024-11-22 02:05:38,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:05:38,251 INFO L93 Difference]: Finished difference Result 514 states and 714 transitions. [2024-11-22 02:05:38,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-22 02:05:38,253 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.375) internal successors, (27), 7 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 [2024-11-22 02:05:38,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:05:38,259 INFO L225 Difference]: With dead ends: 514 [2024-11-22 02:05:38,261 INFO L226 Difference]: Without dead ends: 381 [2024-11-22 02:05:38,263 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 [2024-11-22 02:05:38,264 INFO L432 NwaCegarLoop]: 67 mSDtfsCounter, 105 mSDsluCounter, 369 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 436 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 02:05:38,266 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 436 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 02:05:38,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2024-11-22 02:05:38,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 375. [2024-11-22 02:05:38,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 375 states, 284 states have (on average 1.3485915492957747) internal successors, (383), 321 states have internal predecessors, (383), 51 states have call successors, (51), 39 states have call predecessors, (51), 39 states have return successors, (65), 33 states have call predecessors, (65), 51 states have call successors, (65) [2024-11-22 02:05:38,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 499 transitions. [2024-11-22 02:05:38,320 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 499 transitions. Word has length 28 [2024-11-22 02:05:38,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:05:38,320 INFO L471 AbstractCegarLoop]: Abstraction has 375 states and 499 transitions. [2024-11-22 02:05:38,321 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.375) internal successors, (27), 7 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) [2024-11-22 02:05:38,321 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 499 transitions. [2024-11-22 02:05:38,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-22 02:05:38,323 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:05:38,323 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:05:38,323 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-22 02:05:38,324 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:05:38,324 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:05:38,324 INFO L85 PathProgramCache]: Analyzing trace with hash 1150482326, now seen corresponding path program 1 times [2024-11-22 02:05:38,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:05:38,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966902750] [2024-11-22 02:05:38,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:05:38,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:05:38,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:05:38,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:05:38,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:05:38,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966902750] [2024-11-22 02:05:38,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1966902750] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:05:38,398 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:05:38,398 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 02:05:38,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793423822] [2024-11-22 02:05:38,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:05:38,399 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 02:05:38,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:05:38,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 02:05:38,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 02:05:38,399 INFO L87 Difference]: Start difference. First operand 375 states and 499 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:05:38,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:05:38,434 INFO L93 Difference]: Finished difference Result 650 states and 879 transitions. [2024-11-22 02:05:38,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 02:05:38,434 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2024-11-22 02:05:38,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:05:38,437 INFO L225 Difference]: With dead ends: 650 [2024-11-22 02:05:38,437 INFO L226 Difference]: Without dead ends: 282 [2024-11-22 02:05:38,441 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 [2024-11-22 02:05:38,442 INFO L432 NwaCegarLoop]: 49 mSDtfsCounter, 33 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:05:38,446 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 49 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:05:38,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2024-11-22 02:05:38,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 276. [2024-11-22 02:05:38,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 276 states, 215 states have (on average 1.2651162790697674) internal successors, (272), 231 states have internal predecessors, (272), 30 states have call successors, (30), 30 states have call predecessors, (30), 30 states have return successors, (36), 30 states have call predecessors, (36), 30 states have call successors, (36) [2024-11-22 02:05:38,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 338 transitions. [2024-11-22 02:05:38,479 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 338 transitions. Word has length 30 [2024-11-22 02:05:38,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:05:38,480 INFO L471 AbstractCegarLoop]: Abstraction has 276 states and 338 transitions. [2024-11-22 02:05:38,480 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:05:38,481 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 338 transitions. [2024-11-22 02:05:38,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-11-22 02:05:38,488 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:05:38,488 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-22 02:05:38,488 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-22 02:05:38,488 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:05:38,489 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:05:38,489 INFO L85 PathProgramCache]: Analyzing trace with hash -1844755754, now seen corresponding path program 1 times [2024-11-22 02:05:38,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:05:38,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386967833] [2024-11-22 02:05:38,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:05:38,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:05:38,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:05:38,633 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-22 02:05:38,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:05:38,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386967833] [2024-11-22 02:05:38,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [386967833] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 02:05:38,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [966845638] [2024-11-22 02:05:38,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:05:38,636 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 02:05:38,636 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 02:05:38,640 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) [2024-11-22 02:05:38,642 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-22 02:05:38,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:05:38,720 INFO L255 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-22 02:05:38,728 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 02:05:38,872 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 15 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-22 02:05:38,875 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 02:05:39,152 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 15 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:05:39,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [966845638] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 02:05:39,155 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 02:05:39,155 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 7] total 14 [2024-11-22 02:05:39,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567490266] [2024-11-22 02:05:39,156 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 02:05:39,156 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-22 02:05:39,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:05:39,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-22 02:05:39,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2024-11-22 02:05:39,159 INFO L87 Difference]: Start difference. First operand 276 states and 338 transitions. Second operand has 14 states, 14 states have (on average 6.571428571428571) internal successors, (92), 13 states have internal predecessors, (92), 4 states have call successors, (10), 7 states have call predecessors, (10), 7 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-22 02:05:39,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:05:39,394 INFO L93 Difference]: Finished difference Result 373 states and 455 transitions. [2024-11-22 02:05:39,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 02:05:39,395 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 6.571428571428571) internal successors, (92), 13 states have internal predecessors, (92), 4 states have call successors, (10), 7 states have call predecessors, (10), 7 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 53 [2024-11-22 02:05:39,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:05:39,396 INFO L225 Difference]: With dead ends: 373 [2024-11-22 02:05:39,396 INFO L226 Difference]: Without dead ends: 0 [2024-11-22 02:05:39,397 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 98 SyntacticMatches, 4 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=91, Invalid=251, Unknown=0, NotChecked=0, Total=342 [2024-11-22 02:05:39,397 INFO L432 NwaCegarLoop]: 59 mSDtfsCounter, 110 mSDsluCounter, 303 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 362 SdHoareTripleChecker+Invalid, 232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 02:05:39,397 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 362 Invalid, 232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 02:05:39,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-22 02:05:39,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-22 02:05:39,400 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) [2024-11-22 02:05:39,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-22 02:05:39,400 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 53 [2024-11-22 02:05:39,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:05:39,401 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-22 02:05:39,401 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 6.571428571428571) internal successors, (92), 13 states have internal predecessors, (92), 4 states have call successors, (10), 7 states have call predecessors, (10), 7 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-22 02:05:39,401 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-22 02:05:39,401 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-22 02:05:39,405 INFO L782 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-22 02:05:39,414 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-22 02:05:39,609 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 [2024-11-22 02:05:39,612 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-11-22 02:05:39,614 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-22 02:05:40,475 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-22 02:05:40,513 WARN L156 FloydHoareUtils]: Requires clause for timeShift contained old-variable. Original clause: (and (= ~pumpRunning~0 0) (or (not (= |old(~waterLevel~0)| 1)) (= ~waterLevel~0 1)) (= |old(~pumpRunning~0)| 0) (<= 1 |old(~waterLevel~0)|) (<= |old(~waterLevel~0)| ~waterLevel~0)) Eliminated clause: (and (= ~pumpRunning~0 0) (exists ((|old(~waterLevel~0)| Int)) (and (or (not (= |old(~waterLevel~0)| 1)) (= ~waterLevel~0 1)) (<= 1 |old(~waterLevel~0)|) (<= |old(~waterLevel~0)| ~waterLevel~0)))) [2024-11-22 02:05:40,517 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-22 02:05:40,523 WARN L156 FloydHoareUtils]: Requires clause for waterRise contained old-variable. Original clause: (and (= ~pumpRunning~0 0) (or (not (= |old(~waterLevel~0)| 1)) (= ~waterLevel~0 1)) (<= 1 |old(~waterLevel~0)|) (<= |old(~waterLevel~0)| ~waterLevel~0)) Eliminated clause: (and (= ~pumpRunning~0 0) (exists ((|old(~waterLevel~0)| Int)) (and (or (not (= |old(~waterLevel~0)| 1)) (= ~waterLevel~0 1)) (<= 1 |old(~waterLevel~0)|) (<= |old(~waterLevel~0)| ~waterLevel~0)))) [2024-11-22 02:05:40,524 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-22 02:05:40,527 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 02:05:40 BoogieIcfgContainer [2024-11-22 02:05:40,527 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-22 02:05:40,528 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-22 02:05:40,528 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-22 02:05:40,528 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-22 02:05:40,529 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:05:36" (3/4) ... [2024-11-22 02:05:40,532 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-22 02:05:40,535 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2024-11-22 02:05:40,535 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2024-11-22 02:05:40,536 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2024-11-22 02:05:40,536 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2024-11-22 02:05:40,536 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2024-11-22 02:05:40,536 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2024-11-22 02:05:40,543 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2024-11-22 02:05:40,544 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-11-22 02:05:40,544 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-22 02:05:40,545 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-22 02:05:40,546 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-22 02:05:40,654 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-22 02:05:40,655 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-22 02:05:40,655 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-22 02:05:40,655 INFO L158 Benchmark]: Toolchain (without parser) took 4901.44ms. Allocated memory is still 174.1MB. Free memory was 137.3MB in the beginning and 88.8MB in the end (delta: 48.6MB). Peak memory consumption was 50.6MB. Max. memory is 16.1GB. [2024-11-22 02:05:40,656 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 109.1MB. Free memory is still 83.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-22 02:05:40,656 INFO L158 Benchmark]: CACSL2BoogieTranslator took 489.59ms. Allocated memory is still 174.1MB. Free memory was 137.3MB in the beginning and 116.4MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-11-22 02:05:40,656 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.27ms. Allocated memory is still 174.1MB. Free memory was 116.4MB in the beginning and 114.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-22 02:05:40,657 INFO L158 Benchmark]: Boogie Preprocessor took 72.63ms. Allocated memory is still 174.1MB. Free memory was 113.5MB in the beginning and 111.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-22 02:05:40,657 INFO L158 Benchmark]: RCFGBuilder took 443.29ms. Allocated memory is still 174.1MB. Free memory was 111.4MB in the beginning and 95.4MB in the end (delta: 16.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-22 02:05:40,657 INFO L158 Benchmark]: TraceAbstraction took 3716.29ms. Allocated memory is still 174.1MB. Free memory was 94.6MB in the beginning and 95.1MB in the end (delta: -439.5kB). Peak memory consumption was 49.3MB. Max. memory is 16.1GB. [2024-11-22 02:05:40,657 INFO L158 Benchmark]: Witness Printer took 127.23ms. Allocated memory is still 174.1MB. Free memory was 95.1MB in the beginning and 88.8MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-22 02:05:40,659 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 109.1MB. Free memory is still 83.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 489.59ms. Allocated memory is still 174.1MB. Free memory was 137.3MB in the beginning and 116.4MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.27ms. Allocated memory is still 174.1MB. Free memory was 116.4MB in the beginning and 114.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 72.63ms. Allocated memory is still 174.1MB. Free memory was 113.5MB in the beginning and 111.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 443.29ms. Allocated memory is still 174.1MB. Free memory was 111.4MB in the beginning and 95.4MB in the end (delta: 16.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 3716.29ms. Allocated memory is still 174.1MB. Free memory was 94.6MB in the beginning and 95.1MB in the end (delta: -439.5kB). Peak memory consumption was 49.3MB. Max. memory is 16.1GB. * Witness Printer took 127.23ms. Allocated memory is still 174.1MB. Free memory was 95.1MB in the beginning and 88.8MB 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,"Test.i","") [49] - GenericResultAtLocation [Line: 153]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [153] - GenericResultAtLocation [Line: 162]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification4_spec.i","") [162] - GenericResultAtLocation [Line: 190]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [190] - GenericResultAtLocation [Line: 283]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [283] - GenericResultAtLocation [Line: 351]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [351] - GenericResultAtLocation [Line: 538]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [538] - GenericResultAtLocation [Line: 573]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [573] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - 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: 158]: 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 7 procedures, 76 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.8s, OverallIterations: 6, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 389 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 385 mSDsluCounter, 1419 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 993 mSDsCounter, 45 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 380 IncrementalHoareTripleChecker+Invalid, 425 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 45 mSolverCounterUnsat, 426 mSDtfsCounter, 380 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 148 GetRequests, 107 SyntacticMatches, 4 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=375occurred in iteration=4, InterpolantAutomatonStates: 31, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 6 MinimizatonAttempts, 18 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 227 NumberOfCodeBlocks, 227 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 272 ConstructedInterpolants, 0 QuantifiedInterpolants, 727 SizeOfPredicates, 0 NumberOfNonLiveVariables, 207 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 8 InterpolantComputations, 5 PerfectInterpolantSequences, 44/54 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: 295]: Loop Invariant Derived loop invariant: ((((pumpRunning == 0) && (splverifierCounter == 0)) && (waterLevel == 1)) || (((pumpRunning == 0) && (2 <= waterLevel)) && (splverifierCounter == 0))) - InvariantResult [Line: 294]: Location Invariant Derived location invariant: 0 - InvariantResult [Line: 62]: Loop Invariant Derived loop invariant: 0 - ProcedureContractResult [Line: 440]: Procedure Contract for deactivatePump Derived contract for procedure deactivatePump. Requires: 0 Ensures: (0 && (((((cleanupTimeShifts == \old(cleanupTimeShifts)) && (waterLevel == \old(waterLevel))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (systemActive == \old(systemActive))) && (head == \old(head)))) - ProcedureContractResult [Line: 381]: Procedure Contract for processEnvironment__wrappee__base Derived contract for procedure processEnvironment__wrappee__base. Requires: ((((pumpRunning == 0) && (waterLevel == 1)) && (0 != systemActive)) || (((pumpRunning == 0) && (2 <= waterLevel)) && (0 != systemActive))) Ensures: (((((pumpRunning == 0) && (waterLevel == 1)) && (0 != systemActive)) || (((pumpRunning == 0) && (2 <= waterLevel)) && (0 != systemActive))) && ((((((cleanupTimeShifts == \old(cleanupTimeShifts)) && (waterLevel == \old(waterLevel))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive))) && (head == \old(head)))) - ProcedureContractResult [Line: 221]: 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))) && (((((cleanupTimeShifts == \old(cleanupTimeShifts)) && (waterLevel == \old(waterLevel))) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive))) && (head == \old(head)))) - ProcedureContractResult [Line: 357]: Procedure Contract for timeShift Derived contract for procedure timeShift. Requires: (pumpRunning == 0) Ensures: ((((((pumpRunning == 0) && ((\old(waterLevel) != 1) || (waterLevel == 1))) && (\old(pumpRunning) == 0)) && (1 <= \old(waterLevel))) && (\old(waterLevel) <= waterLevel)) && ((((cleanupTimeShifts == \old(cleanupTimeShifts)) && (methaneLevelCritical == \old(methaneLevelCritical))) && (systemActive == \old(systemActive))) && (head == \old(head)))) - ProcedureContractResult [Line: 52]: Procedure Contract for cleanup Derived contract for procedure cleanup. Requires: 0 Ensures: (0 && ((((cleanupTimeShifts == \old(cleanupTimeShifts)) && (methaneLevelCritical == \old(methaneLevelCritical))) && (systemActive == \old(systemActive))) && (head == \old(head)))) - ProcedureContractResult [Line: 209]: Procedure Contract for waterRise Derived contract for procedure waterRise. Requires: (pumpRunning == 0) Ensures: (((((pumpRunning == 0) && (2 <= waterLevel)) && (1 <= \old(waterLevel))) && (\old(waterLevel) <= waterLevel)) && (((((cleanupTimeShifts == \old(cleanupTimeShifts)) && (methaneLevelCritical == \old(methaneLevelCritical))) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive))) && (head == \old(head)))) RESULT: Ultimate proved your program to be correct! [2024-11-22 02:05:40,681 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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