./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec3_product61.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_spec3_product61.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 53b1b58c0a8af862b137647fd316df606e2053e614741221b62b3a107765e608 --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-08 15:15:18,718 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 15:15:18,791 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 15:15:18,796 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 15:15:18,798 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 15:15:18,819 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 15:15:18,819 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 15:15:18,819 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 15:15:18,820 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 15:15:18,820 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 15:15:18,821 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 15:15:18,821 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 15:15:18,822 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 15:15:18,822 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 15:15:18,822 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 15:15:18,823 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 15:15:18,823 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 15:15:18,823 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 15:15:18,824 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 15:15:18,824 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 15:15:18,824 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 15:15:18,828 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 15:15:18,829 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 15:15:18,829 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 15:15:18,831 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 15:15:18,832 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 15:15:18,832 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 15:15:18,832 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 15:15:18,833 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 15:15:18,834 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 15:15:18,835 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 15:15:18,835 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 15:15:18,835 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 15:15:18,835 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 15:15:18,835 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 15:15:18,836 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 15:15:18,836 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 15:15:18,836 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 15:15:18,837 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 15:15:18,837 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 15:15:18,837 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 15:15:18,838 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 15:15:18,838 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 53b1b58c0a8af862b137647fd316df606e2053e614741221b62b3a107765e608 [2024-11-08 15:15:19,080 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 15:15:19,104 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 15:15:19,109 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 15:15:19,110 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 15:15:19,110 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 15:15:19,111 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product61.cil.c [2024-11-08 15:15:20,525 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 15:15:20,747 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 15:15:20,747 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product61.cil.c [2024-11-08 15:15:20,762 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/04d107303/343848bb1387484593398f84c00a8348/FLAGfce4c16e0 [2024-11-08 15:15:20,785 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/04d107303/343848bb1387484593398f84c00a8348 [2024-11-08 15:15:20,787 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 15:15:20,788 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 15:15:20,790 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 15:15:20,791 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 15:15:20,796 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 15:15:20,797 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 03:15:20" (1/1) ... [2024-11-08 15:15:20,798 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@304aad4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:15:20, skipping insertion in model container [2024-11-08 15:15:20,800 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 03:15:20" (1/1) ... [2024-11-08 15:15:20,839 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 15:15:21,122 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_spec3_product61.cil.c[7381,7394] [2024-11-08 15:15:21,201 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 15:15:21,216 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 15:15:21,226 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [49] [2024-11-08 15:15:21,228 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [118] [2024-11-08 15:15:21,228 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [368] [2024-11-08 15:15:21,228 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [472] [2024-11-08 15:15:21,228 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [481] [2024-11-08 15:15:21,229 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [580] [2024-11-08 15:15:21,229 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [614] [2024-11-08 15:15:21,229 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [649] [2024-11-08 15:15:21,259 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_spec3_product61.cil.c[7381,7394] [2024-11-08 15:15:21,294 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 15:15:21,316 INFO L204 MainTranslator]: Completed translation [2024-11-08 15:15:21,317 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:15:21 WrapperNode [2024-11-08 15:15:21,317 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 15:15:21,318 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 15:15:21,318 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 15:15:21,318 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 15:15:21,326 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:15:21" (1/1) ... [2024-11-08 15:15:21,342 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:15:21" (1/1) ... [2024-11-08 15:15:21,391 INFO L138 Inliner]: procedures = 57, calls = 105, calls flagged for inlining = 23, calls inlined = 20, statements flattened = 227 [2024-11-08 15:15:21,391 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 15:15:21,392 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 15:15:21,392 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 15:15:21,392 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 15:15:21,403 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:15:21" (1/1) ... [2024-11-08 15:15:21,403 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:15:21" (1/1) ... [2024-11-08 15:15:21,405 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:15:21" (1/1) ... [2024-11-08 15:15:21,436 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 15:15:21,437 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:15:21" (1/1) ... [2024-11-08 15:15:21,437 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:15:21" (1/1) ... [2024-11-08 15:15:21,442 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:15:21" (1/1) ... [2024-11-08 15:15:21,446 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:15:21" (1/1) ... [2024-11-08 15:15:21,447 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:15:21" (1/1) ... [2024-11-08 15:15:21,449 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:15:21" (1/1) ... [2024-11-08 15:15:21,451 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 15:15:21,452 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 15:15:21,452 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 15:15:21,452 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 15:15:21,453 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:15:21" (1/1) ... [2024-11-08 15:15:21,460 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 15:15:21,472 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 15:15:21,493 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 15:15:21,497 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 15:15:21,545 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 15:15:21,546 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2024-11-08 15:15:21,546 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2024-11-08 15:15:21,547 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2024-11-08 15:15:21,547 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2024-11-08 15:15:21,547 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-11-08 15:15:21,547 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-11-08 15:15:21,547 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-11-08 15:15:21,547 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-11-08 15:15:21,547 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2024-11-08 15:15:21,548 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2024-11-08 15:15:21,548 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2024-11-08 15:15:21,548 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2024-11-08 15:15:21,548 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2024-11-08 15:15:21,548 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2024-11-08 15:15:21,549 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2024-11-08 15:15:21,549 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2024-11-08 15:15:21,549 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2024-11-08 15:15:21,549 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2024-11-08 15:15:21,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 15:15:21,550 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2024-11-08 15:15:21,550 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2024-11-08 15:15:21,550 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 15:15:21,551 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 15:15:21,698 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 15:15:21,701 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 15:15:22,021 INFO L? ?]: Removed 54 outVars from TransFormulas that were not future-live. [2024-11-08 15:15:22,022 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 15:15:22,046 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 15:15:22,046 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-08 15:15:22,047 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 03:15:22 BoogieIcfgContainer [2024-11-08 15:15:22,047 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 15:15:22,050 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 15:15:22,051 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 15:15:22,054 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 15:15:22,054 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 03:15:20" (1/3) ... [2024-11-08 15:15:22,055 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fb2857a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 03:15:22, skipping insertion in model container [2024-11-08 15:15:22,055 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:15:21" (2/3) ... [2024-11-08 15:15:22,055 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fb2857a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 03:15:22, skipping insertion in model container [2024-11-08 15:15:22,055 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 03:15:22" (3/3) ... [2024-11-08 15:15:22,056 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product61.cil.c [2024-11-08 15:15:22,069 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 15:15:22,069 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 15:15:22,131 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 15:15:22,137 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;@466b9813, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 15:15:22,137 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 15:15:22,141 INFO L276 IsEmpty]: Start isEmpty. Operand has 110 states, 80 states have (on average 1.375) internal successors, (110), 90 states have internal predecessors, (110), 18 states have call successors, (18), 10 states have call predecessors, (18), 10 states have return successors, (18), 13 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-08 15:15:22,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-08 15:15:22,150 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:15:22,150 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 15:15:22,151 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:15:22,155 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:15:22,155 INFO L85 PathProgramCache]: Analyzing trace with hash -1589663850, now seen corresponding path program 1 times [2024-11-08 15:15:22,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:15:22,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507018566] [2024-11-08 15:15:22,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:15:22,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:15:22,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:15:22,338 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-08 15:15:22,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:15:22,346 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 15:15:22,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:15:22,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [507018566] [2024-11-08 15:15:22,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [507018566] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:15:22,347 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:15:22,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 15:15:22,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219239944] [2024-11-08 15:15:22,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:15:22,354 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-08 15:15:22,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:15:22,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-08 15:15:22,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 15:15:22,385 INFO L87 Difference]: Start difference. First operand has 110 states, 80 states have (on average 1.375) internal successors, (110), 90 states have internal predecessors, (110), 18 states have call successors, (18), 10 states have call predecessors, (18), 10 states have return successors, (18), 13 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-08 15:15:22,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:15:22,435 INFO L93 Difference]: Finished difference Result 212 states and 287 transitions. [2024-11-08 15:15:22,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 15:15:22,437 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 25 [2024-11-08 15:15:22,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:15:22,449 INFO L225 Difference]: With dead ends: 212 [2024-11-08 15:15:22,449 INFO L226 Difference]: Without dead ends: 101 [2024-11-08 15:15:22,455 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 15:15:22,460 INFO L432 NwaCegarLoop]: 140 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, 140 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 15:15:22,461 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 15:15:22,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2024-11-08 15:15:22,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2024-11-08 15:15:22,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 73 states have (on average 1.3150684931506849) internal successors, (96), 82 states have internal predecessors, (96), 18 states have call successors, (18), 10 states have call predecessors, (18), 9 states have return successors, (17), 12 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-08 15:15:22,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 131 transitions. [2024-11-08 15:15:22,513 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 131 transitions. Word has length 25 [2024-11-08 15:15:22,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:15:22,513 INFO L471 AbstractCegarLoop]: Abstraction has 101 states and 131 transitions. [2024-11-08 15:15:22,514 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-08 15:15:22,514 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 131 transitions. [2024-11-08 15:15:22,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-08 15:15:22,517 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:15:22,517 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 15:15:22,517 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 15:15:22,517 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:15:22,518 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:15:22,519 INFO L85 PathProgramCache]: Analyzing trace with hash 363264377, now seen corresponding path program 1 times [2024-11-08 15:15:22,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:15:22,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985849830] [2024-11-08 15:15:22,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:15:22,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:15:22,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:15:22,644 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-08 15:15:22,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:15:22,653 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 15:15:22,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:15:22,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985849830] [2024-11-08 15:15:22,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1985849830] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:15:22,656 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:15:22,657 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 15:15:22,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161051903] [2024-11-08 15:15:22,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:15:22,659 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 15:15:22,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:15:22,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 15:15:22,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 15:15:22,661 INFO L87 Difference]: Start difference. First operand 101 states and 131 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-08 15:15:22,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:15:22,693 INFO L93 Difference]: Finished difference Result 168 states and 218 transitions. [2024-11-08 15:15:22,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 15:15:22,694 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 26 [2024-11-08 15:15:22,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:15:22,696 INFO L225 Difference]: With dead ends: 168 [2024-11-08 15:15:22,697 INFO L226 Difference]: Without dead ends: 92 [2024-11-08 15:15:22,698 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 15:15:22,699 INFO L432 NwaCegarLoop]: 118 mSDtfsCounter, 12 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 220 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 15:15:22,699 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 220 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 15:15:22,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2024-11-08 15:15:22,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2024-11-08 15:15:22,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 67 states have (on average 1.328358208955224) internal successors, (89), 76 states have internal predecessors, (89), 15 states have call successors, (15), 9 states have call predecessors, (15), 9 states have return successors, (15), 10 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-08 15:15:22,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 119 transitions. [2024-11-08 15:15:22,712 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 119 transitions. Word has length 26 [2024-11-08 15:15:22,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:15:22,713 INFO L471 AbstractCegarLoop]: Abstraction has 92 states and 119 transitions. [2024-11-08 15:15:22,713 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-08 15:15:22,713 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 119 transitions. [2024-11-08 15:15:22,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-08 15:15:22,715 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:15:22,715 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:15:22,715 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 15:15:22,716 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:15:22,716 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:15:22,716 INFO L85 PathProgramCache]: Analyzing trace with hash -1922022974, now seen corresponding path program 1 times [2024-11-08 15:15:22,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:15:22,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533558620] [2024-11-08 15:15:22,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:15:22,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:15:22,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:15:22,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-08 15:15:22,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:15:22,887 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 15:15:22,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:15:22,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [533558620] [2024-11-08 15:15:22,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [533558620] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:15:22,888 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:15:22,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 15:15:22,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510190229] [2024-11-08 15:15:22,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:15:22,889 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 15:15:22,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:15:22,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 15:15:22,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-08 15:15:22,892 INFO L87 Difference]: Start difference. First operand 92 states and 119 transitions. Second operand has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-08 15:15:23,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:15:23,065 INFO L93 Difference]: Finished difference Result 177 states and 232 transitions. [2024-11-08 15:15:23,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 15:15:23,066 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 30 [2024-11-08 15:15:23,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:15:23,068 INFO L225 Difference]: With dead ends: 177 [2024-11-08 15:15:23,069 INFO L226 Difference]: Without dead ends: 92 [2024-11-08 15:15:23,070 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-08 15:15:23,071 INFO L432 NwaCegarLoop]: 115 mSDtfsCounter, 115 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 281 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 15:15:23,071 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 281 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 15:15:23,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2024-11-08 15:15:23,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2024-11-08 15:15:23,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 67 states have (on average 1.3134328358208955) internal successors, (88), 76 states have internal predecessors, (88), 15 states have call successors, (15), 9 states have call predecessors, (15), 9 states have return successors, (15), 10 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-08 15:15:23,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 118 transitions. [2024-11-08 15:15:23,084 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 118 transitions. Word has length 30 [2024-11-08 15:15:23,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:15:23,084 INFO L471 AbstractCegarLoop]: Abstraction has 92 states and 118 transitions. [2024-11-08 15:15:23,085 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-08 15:15:23,085 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 118 transitions. [2024-11-08 15:15:23,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-11-08 15:15:23,086 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:15:23,086 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:15:23,087 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 15:15:23,087 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:15:23,087 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:15:23,088 INFO L85 PathProgramCache]: Analyzing trace with hash -1575345012, now seen corresponding path program 1 times [2024-11-08 15:15:23,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:15:23,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460065942] [2024-11-08 15:15:23,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:15:23,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:15:23,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:15:23,223 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-08 15:15:23,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:15:23,259 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 15:15:23,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:15:23,286 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 15:15:23,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:15:23,292 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-08 15:15:23,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:15:23,296 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 15:15:23,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:15:23,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460065942] [2024-11-08 15:15:23,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1460065942] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:15:23,297 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:15:23,297 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 15:15:23,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932212018] [2024-11-08 15:15:23,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:15:23,298 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 15:15:23,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:15:23,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 15:15:23,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 15:15:23,300 INFO L87 Difference]: Start difference. First operand 92 states and 118 transitions. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 4 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-08 15:15:23,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:15:23,585 INFO L93 Difference]: Finished difference Result 268 states and 342 transitions. [2024-11-08 15:15:23,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 15:15:23,586 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 4 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) Word has length 45 [2024-11-08 15:15:23,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:15:23,588 INFO L225 Difference]: With dead ends: 268 [2024-11-08 15:15:23,592 INFO L226 Difference]: Without dead ends: 183 [2024-11-08 15:15:23,593 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-08 15:15:23,594 INFO L432 NwaCegarLoop]: 131 mSDtfsCounter, 231 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 233 SdHoareTripleChecker+Valid, 318 SdHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 15:15:23,594 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [233 Valid, 318 Invalid, 220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 15:15:23,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2024-11-08 15:15:23,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 177. [2024-11-08 15:15:23,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 131 states have (on average 1.251908396946565) internal successors, (164), 140 states have internal predecessors, (164), 22 states have call successors, (22), 18 states have call predecessors, (22), 23 states have return successors, (29), 24 states have call predecessors, (29), 22 states have call successors, (29) [2024-11-08 15:15:23,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 215 transitions. [2024-11-08 15:15:23,627 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 215 transitions. Word has length 45 [2024-11-08 15:15:23,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:15:23,628 INFO L471 AbstractCegarLoop]: Abstraction has 177 states and 215 transitions. [2024-11-08 15:15:23,628 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 4 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-08 15:15:23,628 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 215 transitions. [2024-11-08 15:15:23,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-08 15:15:23,630 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:15:23,630 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:15:23,630 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 15:15:23,630 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:15:23,631 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:15:23,631 INFO L85 PathProgramCache]: Analyzing trace with hash -1919204828, now seen corresponding path program 1 times [2024-11-08 15:15:23,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:15:23,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3926593] [2024-11-08 15:15:23,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:15:23,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:15:23,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:15:23,772 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-08 15:15:23,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:15:23,784 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 15:15:23,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:15:23,800 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 15:15:23,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:15:23,805 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-08 15:15:23,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:15:23,810 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 15:15:23,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:15:23,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3926593] [2024-11-08 15:15:23,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [3926593] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:15:23,813 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:15:23,813 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 15:15:23,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649426553] [2024-11-08 15:15:23,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:15:23,814 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 15:15:23,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:15:23,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 15:15:23,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-08 15:15:23,818 INFO L87 Difference]: Start difference. First operand 177 states and 215 transitions. Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-08 15:15:24,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:15:24,118 INFO L93 Difference]: Finished difference Result 446 states and 562 transitions. [2024-11-08 15:15:24,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 15:15:24,119 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 51 [2024-11-08 15:15:24,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:15:24,121 INFO L225 Difference]: With dead ends: 446 [2024-11-08 15:15:24,121 INFO L226 Difference]: Without dead ends: 276 [2024-11-08 15:15:24,122 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-11-08 15:15:24,125 INFO L432 NwaCegarLoop]: 92 mSDtfsCounter, 154 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 387 SdHoareTripleChecker+Invalid, 232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 15:15:24,125 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [161 Valid, 387 Invalid, 232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 15:15:24,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2024-11-08 15:15:24,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 274. [2024-11-08 15:15:24,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274 states, 203 states have (on average 1.2413793103448276) internal successors, (252), 215 states have internal predecessors, (252), 35 states have call successors, (35), 30 states have call predecessors, (35), 35 states have return successors, (48), 37 states have call predecessors, (48), 35 states have call successors, (48) [2024-11-08 15:15:24,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 335 transitions. [2024-11-08 15:15:24,164 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 335 transitions. Word has length 51 [2024-11-08 15:15:24,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:15:24,165 INFO L471 AbstractCegarLoop]: Abstraction has 274 states and 335 transitions. [2024-11-08 15:15:24,165 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-08 15:15:24,165 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 335 transitions. [2024-11-08 15:15:24,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-08 15:15:24,168 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:15:24,168 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:15:24,168 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-08 15:15:24,168 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:15:24,169 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:15:24,169 INFO L85 PathProgramCache]: Analyzing trace with hash -1745115842, now seen corresponding path program 1 times [2024-11-08 15:15:24,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:15:24,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635027481] [2024-11-08 15:15:24,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:15:24,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:15:24,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:15:24,266 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 15:15:24,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:15:24,277 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-08 15:15:24,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:15:24,300 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 15:15:24,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:15:24,317 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 15:15:24,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:15:24,320 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-08 15:15:24,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:15:24,328 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 15:15:24,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:15:24,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635027481] [2024-11-08 15:15:24,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [635027481] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:15:24,328 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:15:24,328 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 15:15:24,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399284871] [2024-11-08 15:15:24,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:15:24,332 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 15:15:24,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:15:24,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 15:15:24,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-08 15:15:24,333 INFO L87 Difference]: Start difference. First operand 274 states and 335 transitions. Second operand has 8 states, 8 states have (on average 5.5) internal successors, (44), 6 states have internal predecessors, (44), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-08 15:15:24,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:15:24,930 INFO L93 Difference]: Finished difference Result 638 states and 812 transitions. [2024-11-08 15:15:24,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-08 15:15:24,932 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.5) internal successors, (44), 6 states have internal predecessors, (44), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 55 [2024-11-08 15:15:24,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:15:24,936 INFO L225 Difference]: With dead ends: 638 [2024-11-08 15:15:24,938 INFO L226 Difference]: Without dead ends: 468 [2024-11-08 15:15:24,939 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2024-11-08 15:15:24,940 INFO L432 NwaCegarLoop]: 61 mSDtfsCounter, 435 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 388 mSolverCounterSat, 179 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 440 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 567 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 179 IncrementalHoareTripleChecker+Valid, 388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-08 15:15:24,943 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [440 Valid, 296 Invalid, 567 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [179 Valid, 388 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-08 15:15:24,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 468 states. [2024-11-08 15:15:25,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 468 to 458. [2024-11-08 15:15:25,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 458 states, 337 states have (on average 1.2195845697329377) internal successors, (411), 359 states have internal predecessors, (411), 60 states have call successors, (60), 46 states have call predecessors, (60), 60 states have return successors, (95), 64 states have call predecessors, (95), 60 states have call successors, (95) [2024-11-08 15:15:25,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 458 states to 458 states and 566 transitions. [2024-11-08 15:15:25,013 INFO L78 Accepts]: Start accepts. Automaton has 458 states and 566 transitions. Word has length 55 [2024-11-08 15:15:25,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:15:25,014 INFO L471 AbstractCegarLoop]: Abstraction has 458 states and 566 transitions. [2024-11-08 15:15:25,014 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.5) internal successors, (44), 6 states have internal predecessors, (44), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-08 15:15:25,017 INFO L276 IsEmpty]: Start isEmpty. Operand 458 states and 566 transitions. [2024-11-08 15:15:25,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-08 15:15:25,020 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:15:25,021 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:15:25,021 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-08 15:15:25,023 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:15:25,024 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:15:25,024 INFO L85 PathProgramCache]: Analyzing trace with hash -1683076228, now seen corresponding path program 1 times [2024-11-08 15:15:25,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:15:25,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008789380] [2024-11-08 15:15:25,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:15:25,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:15:25,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:15:25,080 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 15:15:25,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:15:25,090 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-08 15:15:25,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:15:25,101 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 15:15:25,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:15:25,128 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 15:15:25,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:15:25,131 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-08 15:15:25,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:15:25,133 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 15:15:25,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:15:25,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008789380] [2024-11-08 15:15:25,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1008789380] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:15:25,137 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:15:25,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 15:15:25,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194629947] [2024-11-08 15:15:25,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:15:25,138 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 15:15:25,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:15:25,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 15:15:25,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-08 15:15:25,138 INFO L87 Difference]: Start difference. First operand 458 states and 566 transitions. Second operand has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-08 15:15:25,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:15:25,452 INFO L93 Difference]: Finished difference Result 822 states and 1022 transitions. [2024-11-08 15:15:25,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 15:15:25,453 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 55 [2024-11-08 15:15:25,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:15:25,456 INFO L225 Difference]: With dead ends: 822 [2024-11-08 15:15:25,456 INFO L226 Difference]: Without dead ends: 464 [2024-11-08 15:15:25,457 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-11-08 15:15:25,458 INFO L432 NwaCegarLoop]: 69 mSDtfsCounter, 150 mSDsluCounter, 211 mSDsCounter, 0 mSdLazyCounter, 283 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 280 SdHoareTripleChecker+Invalid, 336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 15:15:25,458 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 280 Invalid, 336 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 283 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 15:15:25,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2024-11-08 15:15:25,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 458. [2024-11-08 15:15:25,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 458 states, 337 states have (on average 1.2166172106824926) internal successors, (410), 359 states have internal predecessors, (410), 60 states have call successors, (60), 46 states have call predecessors, (60), 60 states have return successors, (95), 64 states have call predecessors, (95), 60 states have call successors, (95) [2024-11-08 15:15:25,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 458 states to 458 states and 565 transitions. [2024-11-08 15:15:25,498 INFO L78 Accepts]: Start accepts. Automaton has 458 states and 565 transitions. Word has length 55 [2024-11-08 15:15:25,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:15:25,498 INFO L471 AbstractCegarLoop]: Abstraction has 458 states and 565 transitions. [2024-11-08 15:15:25,498 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-08 15:15:25,499 INFO L276 IsEmpty]: Start isEmpty. Operand 458 states and 565 transitions. [2024-11-08 15:15:25,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-08 15:15:25,500 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:15:25,500 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:15:25,500 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-08 15:15:25,501 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:15:25,501 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:15:25,501 INFO L85 PathProgramCache]: Analyzing trace with hash -1817089734, now seen corresponding path program 1 times [2024-11-08 15:15:25,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:15:25,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572830269] [2024-11-08 15:15:25,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:15:25,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:15:25,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:15:25,556 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 15:15:25,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:15:25,563 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-08 15:15:25,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:15:25,574 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 15:15:25,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:15:25,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 15:15:25,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:15:25,634 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-08 15:15:25,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:15:25,636 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 15:15:25,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:15:25,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1572830269] [2024-11-08 15:15:25,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1572830269] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:15:25,637 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:15:25,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 15:15:25,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924077856] [2024-11-08 15:15:25,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:15:25,638 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 15:15:25,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:15:25,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 15:15:25,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-08 15:15:25,639 INFO L87 Difference]: Start difference. First operand 458 states and 565 transitions. Second operand has 9 states, 9 states have (on average 4.888888888888889) internal successors, (44), 7 states have internal predecessors, (44), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-08 15:15:26,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:15:26,041 INFO L93 Difference]: Finished difference Result 918 states and 1147 transitions. [2024-11-08 15:15:26,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-08 15:15:26,042 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.888888888888889) internal successors, (44), 7 states have internal predecessors, (44), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 55 [2024-11-08 15:15:26,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:15:26,045 INFO L225 Difference]: With dead ends: 918 [2024-11-08 15:15:26,046 INFO L226 Difference]: Without dead ends: 467 [2024-11-08 15:15:26,047 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2024-11-08 15:15:26,048 INFO L432 NwaCegarLoop]: 67 mSDtfsCounter, 150 mSDsluCounter, 390 mSDsCounter, 0 mSdLazyCounter, 553 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 457 SdHoareTripleChecker+Invalid, 606 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 553 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 15:15:26,048 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 457 Invalid, 606 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 553 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 15:15:26,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 467 states. [2024-11-08 15:15:26,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 467 to 461. [2024-11-08 15:15:26,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 461 states, 342 states have (on average 1.2105263157894737) internal successors, (414), 363 states have internal predecessors, (414), 59 states have call successors, (59), 45 states have call predecessors, (59), 59 states have return successors, (94), 63 states have call predecessors, (94), 59 states have call successors, (94) [2024-11-08 15:15:26,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 461 states to 461 states and 567 transitions. [2024-11-08 15:15:26,084 INFO L78 Accepts]: Start accepts. Automaton has 461 states and 567 transitions. Word has length 55 [2024-11-08 15:15:26,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:15:26,084 INFO L471 AbstractCegarLoop]: Abstraction has 461 states and 567 transitions. [2024-11-08 15:15:26,084 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.888888888888889) internal successors, (44), 7 states have internal predecessors, (44), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-08 15:15:26,085 INFO L276 IsEmpty]: Start isEmpty. Operand 461 states and 567 transitions. [2024-11-08 15:15:26,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-08 15:15:26,086 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:15:26,086 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:15:26,086 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-08 15:15:26,086 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:15:26,087 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:15:26,087 INFO L85 PathProgramCache]: Analyzing trace with hash 1139830327, now seen corresponding path program 1 times [2024-11-08 15:15:26,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:15:26,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451435903] [2024-11-08 15:15:26,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:15:26,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:15:26,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:15:26,195 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 15:15:26,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:15:26,202 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-08 15:15:26,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:15:26,234 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 15:15:26,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:15:26,302 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 15:15:26,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:15:26,333 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 15:15:26,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:15:26,348 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-08 15:15:26,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:15:26,351 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-08 15:15:26,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:15:26,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1451435903] [2024-11-08 15:15:26,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1451435903] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 15:15:26,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [520628677] [2024-11-08 15:15:26,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:15:26,354 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 15:15:26,354 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 15:15:26,356 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 15:15:26,357 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 15:15:26,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:15:26,451 INFO L255 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-08 15:15:26,456 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 15:15:26,626 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:15:26,626 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 15:15:26,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [520628677] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:15:26,626 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 15:15:26,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [11] total 16 [2024-11-08 15:15:26,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107580940] [2024-11-08 15:15:26,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:15:26,627 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 15:15:26,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:15:26,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 15:15:26,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2024-11-08 15:15:26,628 INFO L87 Difference]: Start difference. First operand 461 states and 567 transitions. Second operand has 8 states, 8 states have (on average 6.375) internal successors, (51), 5 states have internal predecessors, (51), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-08 15:15:26,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:15:26,818 INFO L93 Difference]: Finished difference Result 1350 states and 1691 transitions. [2024-11-08 15:15:26,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 15:15:26,819 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 5 states have internal predecessors, (51), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) Word has length 64 [2024-11-08 15:15:26,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:15:26,824 INFO L225 Difference]: With dead ends: 1350 [2024-11-08 15:15:26,824 INFO L226 Difference]: Without dead ends: 896 [2024-11-08 15:15:26,826 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2024-11-08 15:15:26,826 INFO L432 NwaCegarLoop]: 115 mSDtfsCounter, 68 mSDsluCounter, 502 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 617 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 15:15:26,827 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 617 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 15:15:26,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 896 states. [2024-11-08 15:15:26,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 896 to 894. [2024-11-08 15:15:26,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 894 states, 661 states have (on average 1.199697428139183) internal successors, (793), 699 states have internal predecessors, (793), 117 states have call successors, (117), 90 states have call predecessors, (117), 115 states have return successors, (189), 123 states have call predecessors, (189), 117 states have call successors, (189) [2024-11-08 15:15:26,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 894 states to 894 states and 1099 transitions. [2024-11-08 15:15:26,913 INFO L78 Accepts]: Start accepts. Automaton has 894 states and 1099 transitions. Word has length 64 [2024-11-08 15:15:26,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:15:26,914 INFO L471 AbstractCegarLoop]: Abstraction has 894 states and 1099 transitions. [2024-11-08 15:15:26,914 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 5 states have internal predecessors, (51), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-08 15:15:26,915 INFO L276 IsEmpty]: Start isEmpty. Operand 894 states and 1099 transitions. [2024-11-08 15:15:26,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-08 15:15:26,918 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:15:26,918 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:15:26,938 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-08 15:15:27,119 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 15:15:27,119 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:15:27,120 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:15:27,120 INFO L85 PathProgramCache]: Analyzing trace with hash 890398829, now seen corresponding path program 1 times [2024-11-08 15:15:27,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:15:27,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828604822] [2024-11-08 15:15:27,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:15:27,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:15:27,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:15:27,195 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 15:15:27,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:15:27,205 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-08 15:15:27,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:15:27,220 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 15:15:27,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:15:27,232 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 15:15:27,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:15:27,239 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 15:15:27,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:15:27,243 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-08 15:15:27,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:15:27,247 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-08 15:15:27,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:15:27,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828604822] [2024-11-08 15:15:27,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1828604822] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:15:27,248 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:15:27,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 15:15:27,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691828290] [2024-11-08 15:15:27,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:15:27,249 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 15:15:27,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:15:27,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 15:15:27,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:15:27,250 INFO L87 Difference]: Start difference. First operand 894 states and 1099 transitions. Second operand has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-08 15:15:27,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:15:27,739 INFO L93 Difference]: Finished difference Result 1783 states and 2192 transitions. [2024-11-08 15:15:27,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-08 15:15:27,740 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 65 [2024-11-08 15:15:27,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:15:27,745 INFO L225 Difference]: With dead ends: 1783 [2024-11-08 15:15:27,746 INFO L226 Difference]: Without dead ends: 896 [2024-11-08 15:15:27,748 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2024-11-08 15:15:27,749 INFO L432 NwaCegarLoop]: 107 mSDtfsCounter, 235 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 238 SdHoareTripleChecker+Valid, 446 SdHoareTripleChecker+Invalid, 543 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-08 15:15:27,749 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [238 Valid, 446 Invalid, 543 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 469 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-08 15:15:27,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 896 states. [2024-11-08 15:15:27,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 896 to 894. [2024-11-08 15:15:27,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 894 states, 661 states have (on average 1.1845688350983359) internal successors, (783), 699 states have internal predecessors, (783), 117 states have call successors, (117), 90 states have call predecessors, (117), 115 states have return successors, (174), 123 states have call predecessors, (174), 117 states have call successors, (174) [2024-11-08 15:15:27,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 894 states to 894 states and 1074 transitions. [2024-11-08 15:15:27,834 INFO L78 Accepts]: Start accepts. Automaton has 894 states and 1074 transitions. Word has length 65 [2024-11-08 15:15:27,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:15:27,834 INFO L471 AbstractCegarLoop]: Abstraction has 894 states and 1074 transitions. [2024-11-08 15:15:27,834 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-08 15:15:27,835 INFO L276 IsEmpty]: Start isEmpty. Operand 894 states and 1074 transitions. [2024-11-08 15:15:27,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-08 15:15:27,836 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:15:27,837 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:15:27,837 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-08 15:15:27,837 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:15:27,837 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:15:27,838 INFO L85 PathProgramCache]: Analyzing trace with hash -1793906341, now seen corresponding path program 1 times [2024-11-08 15:15:27,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:15:27,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933141731] [2024-11-08 15:15:27,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:15:27,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:15:27,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:15:27,937 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 15:15:27,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:15:27,948 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 15:15:27,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:15:27,971 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-08 15:15:27,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:15:27,981 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 15:15:27,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:15:27,986 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 15:15:27,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:15:27,988 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 15:15:27,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:15:27,990 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-08 15:15:27,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:15:28,006 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-08 15:15:28,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:15:28,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933141731] [2024-11-08 15:15:28,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1933141731] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:15:28,007 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:15:28,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-08 15:15:28,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800214749] [2024-11-08 15:15:28,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:15:28,007 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-08 15:15:28,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:15:28,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-08 15:15:28,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2024-11-08 15:15:28,009 INFO L87 Difference]: Start difference. First operand 894 states and 1074 transitions. Second operand has 12 states, 12 states have (on average 4.416666666666667) internal successors, (53), 8 states have internal predecessors, (53), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-08 15:15:29,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:15:29,208 INFO L93 Difference]: Finished difference Result 1749 states and 2121 transitions. [2024-11-08 15:15:29,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-08 15:15:29,209 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.416666666666667) internal successors, (53), 8 states have internal predecessors, (53), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 68 [2024-11-08 15:15:29,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:15:29,214 INFO L225 Difference]: With dead ends: 1749 [2024-11-08 15:15:29,214 INFO L226 Difference]: Without dead ends: 862 [2024-11-08 15:15:29,217 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 162 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=211, Invalid=719, Unknown=0, NotChecked=0, Total=930 [2024-11-08 15:15:29,217 INFO L432 NwaCegarLoop]: 43 mSDtfsCounter, 380 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 1626 mSolverCounterSat, 152 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 384 SdHoareTripleChecker+Valid, 332 SdHoareTripleChecker+Invalid, 1778 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 152 IncrementalHoareTripleChecker+Valid, 1626 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-08 15:15:29,217 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [384 Valid, 332 Invalid, 1778 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [152 Valid, 1626 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-08 15:15:29,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 862 states. [2024-11-08 15:15:29,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 862 to 862. [2024-11-08 15:15:29,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 862 states, 629 states have (on average 1.1558028616852147) internal successors, (727), 667 states have internal predecessors, (727), 117 states have call successors, (117), 90 states have call predecessors, (117), 115 states have return successors, (168), 123 states have call predecessors, (168), 117 states have call successors, (168) [2024-11-08 15:15:29,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 862 states to 862 states and 1012 transitions. [2024-11-08 15:15:29,269 INFO L78 Accepts]: Start accepts. Automaton has 862 states and 1012 transitions. Word has length 68 [2024-11-08 15:15:29,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:15:29,270 INFO L471 AbstractCegarLoop]: Abstraction has 862 states and 1012 transitions. [2024-11-08 15:15:29,270 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.416666666666667) internal successors, (53), 8 states have internal predecessors, (53), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-08 15:15:29,270 INFO L276 IsEmpty]: Start isEmpty. Operand 862 states and 1012 transitions. [2024-11-08 15:15:29,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-08 15:15:29,272 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:15:29,273 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:15:29,273 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-08 15:15:29,273 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:15:29,273 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:15:29,274 INFO L85 PathProgramCache]: Analyzing trace with hash -1014722144, now seen corresponding path program 1 times [2024-11-08 15:15:29,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:15:29,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461369009] [2024-11-08 15:15:29,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:15:29,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:15:29,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:15:29,348 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 15:15:29,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:15:29,354 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-08 15:15:29,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:15:29,407 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-08 15:15:29,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:15:29,436 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 15:15:29,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:15:29,484 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 15:15:29,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:15:29,509 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 15:15:29,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:15:29,525 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-08 15:15:29,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:15:29,534 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 15:15:29,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:15:29,537 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 15:15:29,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:15:29,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-08 15:15:29,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:15:29,540 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-08 15:15:29,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:15:29,542 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 17 proven. 11 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-08 15:15:29,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:15:29,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461369009] [2024-11-08 15:15:29,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [461369009] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 15:15:29,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [867666474] [2024-11-08 15:15:29,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:15:29,543 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 15:15:29,543 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 15:15:29,545 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 15:15:29,546 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-08 15:15:29,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:15:29,634 INFO L255 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-08 15:15:29,639 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 15:15:29,831 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 17 proven. 12 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-08 15:15:29,831 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 15:15:30,195 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-08 15:15:30,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [867666474] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 15:15:30,196 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 15:15:30,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 8, 9] total 22 [2024-11-08 15:15:30,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043490697] [2024-11-08 15:15:30,197 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 15:15:30,197 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-08 15:15:30,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:15:30,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-08 15:15:30,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=394, Unknown=0, NotChecked=0, Total=462 [2024-11-08 15:15:30,199 INFO L87 Difference]: Start difference. First operand 862 states and 1012 transitions. Second operand has 22 states, 22 states have (on average 6.681818181818182) internal successors, (147), 15 states have internal predecessors, (147), 7 states have call successors, (28), 10 states have call predecessors, (28), 10 states have return successors, (28), 10 states have call predecessors, (28), 7 states have call successors, (28) [2024-11-08 15:15:31,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:15:31,742 INFO L93 Difference]: Finished difference Result 1770 states and 2147 transitions. [2024-11-08 15:15:31,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2024-11-08 15:15:31,743 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 6.681818181818182) internal successors, (147), 15 states have internal predecessors, (147), 7 states have call successors, (28), 10 states have call predecessors, (28), 10 states have return successors, (28), 10 states have call predecessors, (28), 7 states have call successors, (28) Word has length 105 [2024-11-08 15:15:31,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:15:31,745 INFO L225 Difference]: With dead ends: 1770 [2024-11-08 15:15:31,745 INFO L226 Difference]: Without dead ends: 0 [2024-11-08 15:15:31,750 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 302 GetRequests, 226 SyntacticMatches, 7 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1317 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=1078, Invalid=3892, Unknown=0, NotChecked=0, Total=4970 [2024-11-08 15:15:31,751 INFO L432 NwaCegarLoop]: 51 mSDtfsCounter, 868 mSDsluCounter, 524 mSDsCounter, 0 mSdLazyCounter, 1069 mSolverCounterSat, 403 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 870 SdHoareTripleChecker+Valid, 575 SdHoareTripleChecker+Invalid, 1472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 403 IncrementalHoareTripleChecker+Valid, 1069 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-08 15:15:31,752 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [870 Valid, 575 Invalid, 1472 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [403 Valid, 1069 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-08 15:15:31,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-08 15:15:31,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-08 15:15:31,752 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 15:15:31,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-08 15:15:31,754 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 105 [2024-11-08 15:15:31,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:15:31,754 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-08 15:15:31,754 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 6.681818181818182) internal successors, (147), 15 states have internal predecessors, (147), 7 states have call successors, (28), 10 states have call predecessors, (28), 10 states have return successors, (28), 10 states have call predecessors, (28), 7 states have call successors, (28) [2024-11-08 15:15:31,754 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-08 15:15:31,754 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-08 15:15:31,757 INFO L782 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-08 15:15:31,781 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-08 15:15:31,958 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-08 15:15:31,961 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:15:31,964 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-08 15:15:36,142 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-08 15:15:36,161 WARN L156 FloydHoareUtils]: Requires clause for deactivatePump contained old-variable. Original clause: (and (let ((.cse0 (<= ~waterLevel~0 1)) (.cse1 (= 1 ~systemActive~0)) (.cse2 (= |old(~pumpRunning~0)| 1))) (or (and (= ~methaneLevelCritical~0 0) .cse0 .cse1 .cse2) (and (<= 1 ~methaneLevelCritical~0) .cse0 .cse1 .cse2))) (= ~pumpRunning~0 1)) Eliminated clause: (and (let ((.cse0 (<= ~waterLevel~0 1)) (.cse1 (= 1 ~systemActive~0))) (or (and (<= 1 ~methaneLevelCritical~0) .cse0 .cse1) (and (= ~methaneLevelCritical~0 0) .cse0 .cse1))) (= ~pumpRunning~0 1)) [2024-11-08 15:15:36,178 WARN L156 FloydHoareUtils]: Requires clause for changeMethaneLevel contained old-variable. Original clause: (and (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0) (let ((.cse0 (= |old(~methaneLevelCritical~0)| 0)) (.cse3 (= ~pumpRunning~0 1)) (.cse4 (= ~pumpRunning~0 0)) (.cse5 (<= 1 |old(~methaneLevelCritical~0)|)) (.cse1 (= 1 ~systemActive~0)) (.cse2 (<= ~waterLevel~0 2))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse0 .cse1 .cse2) (and .cse5 .cse1 .cse2 .cse3) (and .cse4 .cse5 .cse1 .cse2)))) Eliminated clause: (let ((.cse3 (= ~pumpRunning~0 1)) (.cse0 (= ~methaneLevelCritical~0 0)) (.cse5 (= ~pumpRunning~0 0)) (.cse4 (<= 1 ~methaneLevelCritical~0)) (.cse1 (= 1 ~systemActive~0)) (.cse2 (<= ~waterLevel~0 2))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse1 .cse2 .cse3) (and .cse5 .cse0 .cse1 .cse2) (and .cse5 .cse4 .cse1 .cse2))) [2024-11-08 15:15:36,202 WARN L156 FloydHoareUtils]: Requires clause for timeShift contained old-variable. Original clause: (let ((.cse1 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse0 (= |old(~pumpRunning~0)| 0)) (.cse2 (= |old(~pumpRunning~0)| 1))) (and (or (not .cse0) (and (= ~pumpRunning~0 0) .cse1)) (or (not .cse2) (and .cse1 (= ~pumpRunning~0 1))) (let ((.cse3 (<= 1 ~methaneLevelCritical~0)) (.cse6 (= ~methaneLevelCritical~0 0)) (.cse4 (= 1 ~systemActive~0)) (.cse5 (<= |old(~waterLevel~0)| 2))) (or (and .cse3 .cse4 .cse2 .cse5) (and .cse6 .cse4 .cse0 .cse5) (and .cse3 .cse4 .cse0 .cse5) (and .cse6 .cse4 .cse2 .cse5))))) Eliminated clause: (exists ((|old(~pumpRunning~0)| Int) (|old(~waterLevel~0)| Int)) (let ((.cse1 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse0 (= |old(~pumpRunning~0)| 0)) (.cse2 (= |old(~pumpRunning~0)| 1))) (and (or (not .cse0) (and (= ~pumpRunning~0 0) .cse1)) (or (not .cse2) (and .cse1 (= ~pumpRunning~0 1))) (let ((.cse3 (<= 1 ~methaneLevelCritical~0)) (.cse6 (= ~methaneLevelCritical~0 0)) (.cse4 (= 1 ~systemActive~0)) (.cse5 (<= |old(~waterLevel~0)| 2))) (or (and .cse3 .cse4 .cse2 .cse5) (and .cse6 .cse4 .cse0 .cse5) (and .cse3 .cse4 .cse0 .cse5) (and .cse6 .cse4 .cse2 .cse5)))))) [2024-11-08 15:15:36,211 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-08 15:15:36,217 WARN L156 FloydHoareUtils]: Requires clause for processEnvironment__wrappee__highWaterSensor contained old-variable. Original clause: (let ((.cse0 (= |old(~pumpRunning~0)| 0)) (.cse6 (= |old(~pumpRunning~0)| 1))) (and (or (not .cse0) (= ~pumpRunning~0 0)) (let ((.cse1 (<= 1 ~methaneLevelCritical~0)) (.cse5 (<= ~waterLevel~0 1)) (.cse4 (= ~methaneLevelCritical~0 0)) (.cse2 (= 1 ~systemActive~0)) (.cse3 (<= ~waterLevel~0 2))) (or (and .cse1 .cse2 .cse0 .cse3) (and .cse4 .cse5 .cse2 .cse6) (and .cse1 .cse5 .cse2 .cse6) (and .cse4 .cse2 .cse0 .cse3))) (or (not .cse6) (= ~pumpRunning~0 1)))) Eliminated clause: (exists ((|old(~pumpRunning~0)| Int)) (let ((.cse0 (= |old(~pumpRunning~0)| 0)) (.cse6 (= |old(~pumpRunning~0)| 1))) (and (or (not .cse0) (= ~pumpRunning~0 0)) (let ((.cse1 (<= 1 ~methaneLevelCritical~0)) (.cse5 (<= ~waterLevel~0 1)) (.cse4 (= ~methaneLevelCritical~0 0)) (.cse2 (= 1 ~systemActive~0)) (.cse3 (<= ~waterLevel~0 2))) (or (and .cse1 .cse2 .cse0 .cse3) (and .cse4 .cse5 .cse2 .cse6) (and .cse1 .cse5 .cse2 .cse6) (and .cse4 .cse2 .cse0 .cse3))) (or (not .cse6) (= ~pumpRunning~0 1))))) [2024-11-08 15:15:36,227 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-08 15:15:36,233 WARN L156 FloydHoareUtils]: Requires clause for waterRise contained old-variable. Original clause: (let ((.cse1 (= 1 ~systemActive~0)) (.cse3 (= ~pumpRunning~0 1))) (and (let ((.cse4 (<= 1 ~methaneLevelCritical~0)) (.cse2 (<= |old(~waterLevel~0)| 2)) (.cse5 (= ~pumpRunning~0 0)) (.cse0 (= ~methaneLevelCritical~0 0))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse3) (and .cse5 .cse4 .cse1 .cse2) (and .cse5 .cse0 .cse1 (<= |old(~waterLevel~0)| 1)))) (or (and (<= ~waterLevel~0 1) .cse1) (not .cse3) (< ~methaneLevelCritical~0 1)) (= |old(~waterLevel~0)| ~waterLevel~0))) Eliminated clause: (let ((.cse2 (= ~pumpRunning~0 1)) (.cse0 (<= ~waterLevel~0 1)) (.cse1 (= 1 ~systemActive~0))) (and (or (and .cse0 .cse1) (not .cse2) (< ~methaneLevelCritical~0 1)) (let ((.cse3 (= ~methaneLevelCritical~0 0)) (.cse6 (= ~pumpRunning~0 0)) (.cse5 (<= 1 ~methaneLevelCritical~0)) (.cse4 (<= ~waterLevel~0 2))) (or (and .cse3 .cse1 .cse4 .cse2) (and .cse5 .cse2) (and .cse6 .cse3 .cse0 .cse1) (and .cse6 .cse5 .cse1 .cse4))))) [2024-11-08 15:15:36,249 WARN L156 FloydHoareUtils]: Requires clause for processEnvironment__wrappee__methaneQuery contained old-variable. Original clause: (let ((.cse0 (= |old(~pumpRunning~0)| 0)) (.cse6 (= |old(~pumpRunning~0)| 1))) (and (or (not .cse0) (= ~pumpRunning~0 0)) (let ((.cse1 (<= 1 ~methaneLevelCritical~0)) (.cse5 (<= ~waterLevel~0 1)) (.cse4 (= ~methaneLevelCritical~0 0)) (.cse2 (= 1 ~systemActive~0)) (.cse3 (<= ~waterLevel~0 2))) (or (and .cse1 .cse2 .cse0 .cse3) (and .cse4 .cse5 .cse2 .cse6) (and .cse1 .cse5 .cse2 .cse6) (and .cse4 .cse2 .cse0 .cse3))) (or (not .cse6) (= ~pumpRunning~0 1)))) Eliminated clause: (exists ((|old(~pumpRunning~0)| Int)) (let ((.cse0 (= |old(~pumpRunning~0)| 0)) (.cse6 (= |old(~pumpRunning~0)| 1))) (and (or (not .cse0) (= ~pumpRunning~0 0)) (let ((.cse1 (<= 1 ~methaneLevelCritical~0)) (.cse5 (<= ~waterLevel~0 1)) (.cse4 (= ~methaneLevelCritical~0 0)) (.cse2 (= 1 ~systemActive~0)) (.cse3 (<= ~waterLevel~0 2))) (or (and .cse1 .cse2 .cse0 .cse3) (and .cse4 .cse5 .cse2 .cse6) (and .cse1 .cse5 .cse2 .cse6) (and .cse4 .cse2 .cse0 .cse3))) (or (not .cse6) (= ~pumpRunning~0 1))))) [2024-11-08 15:15:36,254 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-08 15:15:36,263 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.11 03:15:36 BoogieIcfgContainer [2024-11-08 15:15:36,263 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-08 15:15:36,263 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 15:15:36,264 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 15:15:36,264 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 15:15:36,264 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 03:15:22" (3/4) ... [2024-11-08 15:15:36,267 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-08 15:15:36,272 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2024-11-08 15:15:36,273 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2024-11-08 15:15:36,273 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2024-11-08 15:15:36,273 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2024-11-08 15:15:36,273 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2024-11-08 15:15:36,273 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2024-11-08 15:15:36,273 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2024-11-08 15:15:36,274 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2024-11-08 15:15:36,274 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__methaneQuery [2024-11-08 15:15:36,274 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2024-11-08 15:15:36,284 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2024-11-08 15:15:36,285 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-11-08 15:15:36,285 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-08 15:15:36,285 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-08 15:15:36,286 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-08 15:15:36,403 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-08 15:15:36,404 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-08 15:15:36,404 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 15:15:36,405 INFO L158 Benchmark]: Toolchain (without parser) took 15616.08ms. Allocated memory was 165.7MB in the beginning and 287.3MB in the end (delta: 121.6MB). Free memory was 113.1MB in the beginning and 138.7MB in the end (delta: -25.7MB). Peak memory consumption was 97.0MB. Max. memory is 16.1GB. [2024-11-08 15:15:36,405 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 100.7MB. Free memory was 65.6MB in the beginning and 65.5MB in the end (delta: 76.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 15:15:36,405 INFO L158 Benchmark]: CACSL2BoogieTranslator took 527.51ms. Allocated memory is still 165.7MB. Free memory was 113.1MB in the beginning and 91.0MB in the end (delta: 22.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-11-08 15:15:36,405 INFO L158 Benchmark]: Boogie Procedure Inliner took 73.24ms. Allocated memory is still 165.7MB. Free memory was 91.0MB in the beginning and 133.8MB in the end (delta: -42.8MB). Peak memory consumption was 4.4MB. Max. memory is 16.1GB. [2024-11-08 15:15:36,406 INFO L158 Benchmark]: Boogie Preprocessor took 59.23ms. Allocated memory is still 165.7MB. Free memory was 133.8MB in the beginning and 131.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 15:15:36,406 INFO L158 Benchmark]: RCFGBuilder took 595.18ms. Allocated memory is still 165.7MB. Free memory was 131.7MB in the beginning and 119.2MB in the end (delta: 12.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-08 15:15:36,409 INFO L158 Benchmark]: TraceAbstraction took 14212.49ms. Allocated memory was 165.7MB in the beginning and 287.3MB in the end (delta: 121.6MB). Free memory was 118.1MB in the beginning and 147.1MB in the end (delta: -29.0MB). Peak memory consumption was 162.9MB. Max. memory is 16.1GB. [2024-11-08 15:15:36,410 INFO L158 Benchmark]: Witness Printer took 140.53ms. Allocated memory is still 287.3MB. Free memory was 147.1MB in the beginning and 138.7MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-08 15:15:36,411 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 100.7MB. Free memory was 65.6MB in the beginning and 65.5MB in the end (delta: 76.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 527.51ms. Allocated memory is still 165.7MB. Free memory was 113.1MB in the beginning and 91.0MB in the end (delta: 22.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 73.24ms. Allocated memory is still 165.7MB. Free memory was 91.0MB in the beginning and 133.8MB in the end (delta: -42.8MB). Peak memory consumption was 4.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 59.23ms. Allocated memory is still 165.7MB. Free memory was 133.8MB in the beginning and 131.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 595.18ms. Allocated memory is still 165.7MB. Free memory was 131.7MB in the beginning and 119.2MB in the end (delta: 12.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 14212.49ms. Allocated memory was 165.7MB in the beginning and 287.3MB in the end (delta: 121.6MB). Free memory was 118.1MB in the beginning and 147.1MB in the end (delta: -29.0MB). Peak memory consumption was 162.9MB. Max. memory is 16.1GB. * Witness Printer took 140.53ms. Allocated memory is still 287.3MB. Free memory was 147.1MB in the beginning and 138.7MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [49] - GenericResultAtLocation [Line: 118]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [118] - GenericResultAtLocation [Line: 368]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [368] - GenericResultAtLocation [Line: 472]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [472] - GenericResultAtLocation [Line: 481]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [481] - GenericResultAtLocation [Line: 580]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [580] - GenericResultAtLocation [Line: 614]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [614] - GenericResultAtLocation [Line: 649]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [649] - 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 - 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: 477]: 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 11 procedures, 110 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 9.9s, OverallIterations: 12, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 5.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2832 SdHoareTripleChecker+Valid, 3.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2798 mSDsluCounter, 4349 SdHoareTripleChecker+Invalid, 3.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3240 mSDsCounter, 1038 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4976 IncrementalHoareTripleChecker+Invalid, 6014 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1038 mSolverCounterUnsat, 1109 mSDtfsCounter, 4976 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 596 GetRequests, 406 SyntacticMatches, 7 SemanticMatches, 183 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1600 ImplicationChecksByTransitivity, 1.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=894occurred in iteration=9, InterpolantAutomatonStates: 159, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 12 MinimizatonAttempts, 34 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.5s InterpolantComputationTime, 813 NumberOfCodeBlocks, 813 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 903 ConstructedInterpolants, 0 QuantifiedInterpolants, 1780 SizeOfPredicates, 2 NumberOfNonLiveVariables, 574 ConjunctsInSsa, 30 ConjunctsInUnsatCore, 15 InterpolantComputations, 11 PerfectInterpolantSequences, 103/132 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: 63]: Location Invariant Derived location invariant: 0 - InvariantResult [Line: 493]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 64]: Loop Invariant Derived loop invariant: ((((((((methaneLevelCritical == 0) && (1 == systemActive)) && (splverifierCounter == 0)) && (waterLevel <= 2)) && (pumpRunning == 1)) || (((((pumpRunning == 0) && (1 <= methaneLevelCritical)) && (1 == systemActive)) && (splverifierCounter == 0)) && (waterLevel <= 2))) || (((((1 <= methaneLevelCritical) && (waterLevel <= 1)) && (1 == systemActive)) && (splverifierCounter == 0)) && (pumpRunning == 1))) || (((((pumpRunning == 0) && (methaneLevelCritical == 0)) && (waterLevel <= 1)) && (1 == systemActive)) && (splverifierCounter == 0))) - ProcedureContractResult [Line: 266]: Procedure Contract for deactivatePump Derived contract for procedure deactivatePump. Requires: (((((1 <= methaneLevelCritical) && (waterLevel <= 1)) && (1 == systemActive)) || (((methaneLevelCritical == 0) && (waterLevel <= 1)) && (1 == systemActive))) && (pumpRunning == 1)) Ensures: (((pumpRunning == 0) && (((((methaneLevelCritical == 0) && (waterLevel <= 1)) && (1 == systemActive)) && (\old(pumpRunning) == 1)) || ((((1 <= methaneLevelCritical) && (waterLevel <= 1)) && (1 == systemActive)) && (\old(pumpRunning) == 1)))) && (((((systemActive == \old(systemActive)) && (waterLevel == \old(waterLevel))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (head == \old(head)))) - ProcedureContractResult [Line: 156]: Procedure Contract for processEnvironment__wrappee__base Derived contract for procedure processEnvironment__wrappee__base. Requires: (((((((methaneLevelCritical == 0) && (waterLevel <= 1)) && (1 == systemActive)) && (pumpRunning == 1)) || ((((1 <= methaneLevelCritical) && (waterLevel <= 1)) && (1 == systemActive)) && (pumpRunning == 1))) || ((((pumpRunning == 0) && (methaneLevelCritical == 0)) && (waterLevel <= 1)) && (1 == systemActive))) || ((((pumpRunning == 0) && (1 <= methaneLevelCritical)) && (waterLevel <= 1)) && (1 == systemActive))) Ensures: ((((((((methaneLevelCritical == 0) && (waterLevel <= 1)) && (1 == systemActive)) && (pumpRunning == 1)) || ((((1 <= methaneLevelCritical) && (waterLevel <= 1)) && (1 == systemActive)) && (pumpRunning == 1))) || ((((pumpRunning == 0) && (methaneLevelCritical == 0)) && (waterLevel <= 1)) && (1 == systemActive))) || ((((pumpRunning == 0) && (1 <= methaneLevelCritical)) && (waterLevel <= 1)) && (1 == systemActive))) && ((((((pumpRunning == \old(pumpRunning)) && (systemActive == \old(systemActive))) && (waterLevel == \old(waterLevel))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (head == \old(head)))) - ProcedureContractResult [Line: 396]: Procedure Contract for changeMethaneLevel Derived contract for procedure changeMethaneLevel. Requires: (((((((methaneLevelCritical == 0) && (1 == systemActive)) && (waterLevel <= 2)) && (pumpRunning == 1)) || ((((1 <= methaneLevelCritical) && (1 == systemActive)) && (waterLevel <= 2)) && (pumpRunning == 1))) || ((((pumpRunning == 0) && (methaneLevelCritical == 0)) && (1 == systemActive)) && (waterLevel <= 2))) || ((((pumpRunning == 0) && (1 <= methaneLevelCritical)) && (1 == systemActive)) && (waterLevel <= 2))) Ensures: (((((\old(methaneLevelCritical) != 0) || (0 < methaneLevelCritical)) && ((methaneLevelCritical == 0) || (\old(methaneLevelCritical) < 1))) && (((((((\old(methaneLevelCritical) == 0) && (1 == systemActive)) && (waterLevel <= 2)) && (pumpRunning == 1)) || ((((pumpRunning == 0) && (\old(methaneLevelCritical) == 0)) && (1 == systemActive)) && (waterLevel <= 2))) || ((((1 <= \old(methaneLevelCritical)) && (1 == systemActive)) && (waterLevel <= 2)) && (pumpRunning == 1))) || ((((pumpRunning == 0) && (1 <= \old(methaneLevelCritical))) && (1 == systemActive)) && (waterLevel <= 2)))) && (((((pumpRunning == \old(pumpRunning)) && (systemActive == \old(systemActive))) && (waterLevel == \old(waterLevel))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (head == \old(head)))) - ProcedureContractResult [Line: 408]: Procedure Contract for isMethaneLevelCritical Derived contract for procedure isMethaneLevelCritical. Requires: (((((((methaneLevelCritical == 0) && (1 == systemActive)) && (waterLevel <= 2)) && (pumpRunning == 1)) || ((((1 <= methaneLevelCritical) && (waterLevel <= 1)) && (1 == systemActive)) && (pumpRunning == 1))) || ((((pumpRunning == 0) && (methaneLevelCritical == 0)) && (1 == systemActive)) && (waterLevel <= 2))) || ((((pumpRunning == 0) && (1 <= methaneLevelCritical)) && (1 == systemActive)) && (waterLevel <= 2))) Ensures: (((\result == methaneLevelCritical) && (((((((methaneLevelCritical == 0) && (1 == systemActive)) && (waterLevel <= 2)) && (pumpRunning == 1)) || ((((1 <= methaneLevelCritical) && (waterLevel <= 1)) && (1 == systemActive)) && (pumpRunning == 1))) || ((((pumpRunning == 0) && (methaneLevelCritical == 0)) && (1 == systemActive)) && (waterLevel <= 2))) || ((((pumpRunning == 0) && (1 <= methaneLevelCritical)) && (1 == systemActive)) && (waterLevel <= 2)))) && ((((((pumpRunning == \old(pumpRunning)) && (systemActive == \old(systemActive))) && (waterLevel == \old(waterLevel))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (head == \old(head)))) - ProcedureContractResult [Line: 483]: Procedure Contract for cleanup Derived contract for procedure cleanup. Requires: 0 Ensures: (0 && ((((systemActive == \old(systemActive)) && (methaneLevelCritical == \old(methaneLevelCritical))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (head == \old(head)))) - ProcedureContractResult [Line: 132]: Procedure Contract for timeShift Derived contract for procedure timeShift. Ensures: (((((((((waterLevel <= 1) && (waterLevel <= \old(waterLevel))) && (pumpRunning == 1)) || (\old(pumpRunning) != 1)) || (((pumpRunning == 0) && (waterLevel <= 1)) && (waterLevel <= \old(waterLevel)))) && ((((((pumpRunning == 0) && (waterLevel <= 1)) && (\old(waterLevel) == waterLevel)) || (\old(pumpRunning) != 0)) || (methaneLevelCritical != 0)) || ((\old(waterLevel) == waterLevel) && (pumpRunning == 1)))) && (((\old(pumpRunning) != 0) || ((pumpRunning == 0) && (\old(waterLevel) == waterLevel))) || (methaneLevelCritical < 1))) && (((((((1 <= methaneLevelCritical) && (1 == systemActive)) && (\old(pumpRunning) == 1)) && (\old(waterLevel) <= 2)) || ((((methaneLevelCritical == 0) && (1 == systemActive)) && (\old(pumpRunning) == 0)) && (\old(waterLevel) <= 2))) || ((((1 <= methaneLevelCritical) && (1 == systemActive)) && (\old(pumpRunning) == 0)) && (\old(waterLevel) <= 2))) || ((((methaneLevelCritical == 0) && (1 == systemActive)) && (\old(pumpRunning) == 1)) && (\old(waterLevel) <= 2)))) && ((((systemActive == \old(systemActive)) && (methaneLevelCritical == \old(methaneLevelCritical))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (head == \old(head)))) - ProcedureContractResult [Line: 164]: Procedure Contract for processEnvironment__wrappee__highWaterSensor Derived contract for procedure processEnvironment__wrappee__highWaterSensor. Ensures: (((((((methaneLevelCritical != 0) || ((pumpRunning == 0) && (waterLevel <= 1))) || (pumpRunning == 1)) && (((((((1 <= methaneLevelCritical) && (1 == systemActive)) && (\old(pumpRunning) == 0)) && (waterLevel <= 2)) || ((((methaneLevelCritical == 0) && (waterLevel <= 1)) && (1 == systemActive)) && (\old(pumpRunning) == 1))) || ((((1 <= methaneLevelCritical) && (waterLevel <= 1)) && (1 == systemActive)) && (\old(pumpRunning) == 1))) || ((((methaneLevelCritical == 0) && (1 == systemActive)) && (\old(pumpRunning) == 0)) && (waterLevel <= 2)))) && ((\old(pumpRunning) != 1) || (pumpRunning == 1))) && (((\old(pumpRunning) != 0) || (pumpRunning == 0)) || (methaneLevelCritical < 1))) && (((((systemActive == \old(systemActive)) && (waterLevel == \old(waterLevel))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (head == \old(head)))) - ProcedureContractResult [Line: 384]: Procedure Contract for waterRise Derived contract for procedure waterRise. Requires: (((((waterLevel <= 1) && (1 == systemActive)) || (pumpRunning != 1)) || (methaneLevelCritical < 1)) && (((((((methaneLevelCritical == 0) && (1 == systemActive)) && (waterLevel <= 2)) && (pumpRunning == 1)) || ((1 <= methaneLevelCritical) && (pumpRunning == 1))) || ((((pumpRunning == 0) && (methaneLevelCritical == 0)) && (waterLevel <= 1)) && (1 == systemActive))) || ((((pumpRunning == 0) && (1 <= methaneLevelCritical)) && (1 == systemActive)) && (waterLevel <= 2)))) Ensures: ((((((((((1 <= methaneLevelCritical) && (\old(waterLevel) <= 1)) && (pumpRunning == 1)) || (((methaneLevelCritical == 0) && (\old(waterLevel) <= 2)) && (pumpRunning == 1))) || (((pumpRunning == 0) && (1 <= methaneLevelCritical)) && (\old(waterLevel) <= 2))) || (((pumpRunning == 0) && (methaneLevelCritical == 0)) && (\old(waterLevel) <= 1))) && (waterLevel <= ((long long) \old(waterLevel) + 1))) && (1 == systemActive)) && (waterLevel <= 2)) && (((((pumpRunning == \old(pumpRunning)) && (systemActive == \old(systemActive))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (head == \old(head)))) - ProcedureContractResult [Line: 190]: Procedure Contract for processEnvironment__wrappee__methaneQuery Derived contract for procedure processEnvironment__wrappee__methaneQuery. Ensures: (((((((methaneLevelCritical != 0) || (waterLevel < 2)) || (pumpRunning == 1)) && (((((((1 <= methaneLevelCritical) && (1 == systemActive)) && (\old(pumpRunning) == 0)) && (waterLevel <= 2)) || ((((methaneLevelCritical == 0) && (waterLevel <= 1)) && (1 == systemActive)) && (\old(pumpRunning) == 1))) || ((((1 <= methaneLevelCritical) && (waterLevel <= 1)) && (1 == systemActive)) && (\old(pumpRunning) == 1))) || ((((methaneLevelCritical == 0) && (1 == systemActive)) && (\old(pumpRunning) == 0)) && (waterLevel <= 2)))) && (((\old(pumpRunning) != 0) || (pumpRunning == 0)) || (methaneLevelCritical < 1))) && ((pumpRunning == 0) || (pumpRunning == 1))) && (((((systemActive == \old(systemActive)) && (waterLevel == \old(waterLevel))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (head == \old(head)))) - ProcedureContractResult [Line: 274]: Procedure Contract for isMethaneAlarm Derived contract for procedure isMethaneAlarm. Requires: (((((((methaneLevelCritical == 0) && (waterLevel <= 1)) && (1 == systemActive)) && (pumpRunning == 1)) || ((((1 <= methaneLevelCritical) && (waterLevel <= 1)) && (1 == systemActive)) && (pumpRunning == 1))) || ((((pumpRunning == 0) && (methaneLevelCritical == 0)) && (1 == systemActive)) && (waterLevel <= 2))) || ((((pumpRunning == 0) && (1 <= methaneLevelCritical)) && (1 == systemActive)) && (waterLevel <= 2))) Ensures: (((((((((methaneLevelCritical == 0) && (waterLevel <= 1)) && (1 == systemActive)) && (pumpRunning == 1)) || ((((1 <= methaneLevelCritical) && (waterLevel <= 1)) && (1 == systemActive)) && (pumpRunning == 1))) || ((((pumpRunning == 0) && (methaneLevelCritical == 0)) && (1 == systemActive)) && (waterLevel <= 2))) || ((((pumpRunning == 0) && (1 <= methaneLevelCritical)) && (1 == systemActive)) && (waterLevel <= 2))) && (\result == methaneLevelCritical)) && ((((((pumpRunning == \old(pumpRunning)) && (systemActive == \old(systemActive))) && (waterLevel == \old(waterLevel))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (head == \old(head)))) RESULT: Ultimate proved your program to be correct! [2024-11-08 15:15:36,441 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