./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec5_product45.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 803cd42f Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/minepump_spec5_product45.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 603cfb64133b588a2e9c81e31ac984484d295feb0a468539180131e3ac5a47d6 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 02:06:35,090 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 02:06:35,158 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-22 02:06:35,163 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 02:06:35,165 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 02:06:35,211 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 02:06:35,215 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 02:06:35,215 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 02:06:35,216 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 02:06:35,217 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 02:06:35,218 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 02:06:35,218 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 02:06:35,219 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 02:06:35,219 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 02:06:35,221 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 02:06:35,221 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 02:06:35,221 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 02:06:35,222 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 02:06:35,222 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 02:06:35,222 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 02:06:35,222 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 02:06:35,223 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 02:06:35,223 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 02:06:35,223 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 02:06:35,223 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 02:06:35,224 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 02:06:35,224 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 02:06:35,224 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 02:06:35,224 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 02:06:35,225 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 02:06:35,225 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 02:06:35,225 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 02:06:35,225 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 02:06:35,226 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 02:06:35,226 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 02:06:35,226 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 02:06:35,229 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 02:06:35,230 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 02:06:35,230 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 02:06:35,231 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 02:06:35,231 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 02:06:35,231 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 02:06:35,232 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 603cfb64133b588a2e9c81e31ac984484d295feb0a468539180131e3ac5a47d6 [2024-11-22 02:06:35,531 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 02:06:35,560 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 02:06:35,562 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 02:06:35,564 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 02:06:35,564 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 02:06:35,565 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec5_product45.cil.c [2024-11-22 02:06:37,045 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 02:06:37,314 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 02:06:37,315 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product45.cil.c [2024-11-22 02:06:37,329 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c7f8238e1/bb65edff294b440b87cc7309d2816033/FLAG82e82632e [2024-11-22 02:06:37,343 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c7f8238e1/bb65edff294b440b87cc7309d2816033 [2024-11-22 02:06:37,345 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 02:06:37,347 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 02:06:37,348 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 02:06:37,348 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 02:06:37,355 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 02:06:37,356 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:06:37" (1/1) ... [2024-11-22 02:06:37,357 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b9b6ff1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:06:37, skipping insertion in model container [2024-11-22 02:06:37,357 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:06:37" (1/1) ... [2024-11-22 02:06:37,409 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 02:06:37,640 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_spec5_product45.cil.c[3064,3077] [2024-11-22 02:06:37,766 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 02:06:37,780 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 02:06:37,790 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [49] [2024-11-22 02:06:37,791 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [150] [2024-11-22 02:06:37,792 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [159] [2024-11-22 02:06:37,792 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [525] [2024-11-22 02:06:37,792 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [575] [2024-11-22 02:06:37,792 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [777] [2024-11-22 02:06:37,793 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [843] [2024-11-22 02:06:37,793 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [881] [2024-11-22 02:06:37,800 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_spec5_product45.cil.c[3064,3077] [2024-11-22 02:06:37,852 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 02:06:37,877 INFO L204 MainTranslator]: Completed translation [2024-11-22 02:06:37,878 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:06:37 WrapperNode [2024-11-22 02:06:37,878 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 02:06:37,879 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 02:06:37,879 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 02:06:37,879 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 02:06:37,888 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:06:37" (1/1) ... [2024-11-22 02:06:37,900 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:06:37" (1/1) ... [2024-11-22 02:06:37,928 INFO L138 Inliner]: procedures = 56, calls = 102, calls flagged for inlining = 24, calls inlined = 21, statements flattened = 211 [2024-11-22 02:06:37,929 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 02:06:37,929 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 02:06:37,929 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 02:06:37,929 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 02:06:37,938 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:06:37" (1/1) ... [2024-11-22 02:06:37,938 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:06:37" (1/1) ... [2024-11-22 02:06:37,940 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:06:37" (1/1) ... [2024-11-22 02:06:37,955 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-22 02:06:37,956 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:06:37" (1/1) ... [2024-11-22 02:06:37,956 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:06:37" (1/1) ... [2024-11-22 02:06:37,960 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:06:37" (1/1) ... [2024-11-22 02:06:37,968 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:06:37" (1/1) ... [2024-11-22 02:06:37,970 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:06:37" (1/1) ... [2024-11-22 02:06:37,974 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:06:37" (1/1) ... [2024-11-22 02:06:37,976 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 02:06:37,981 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 02:06:37,981 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 02:06:37,981 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 02:06:37,982 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:06:37" (1/1) ... [2024-11-22 02:06:37,989 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 02:06:38,002 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 02:06:38,020 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-22 02:06:38,023 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-22 02:06:38,079 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 02:06:38,080 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2024-11-22 02:06:38,080 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2024-11-22 02:06:38,080 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-11-22 02:06:38,080 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-11-22 02:06:38,080 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-11-22 02:06:38,080 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-11-22 02:06:38,081 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2024-11-22 02:06:38,081 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2024-11-22 02:06:38,081 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2024-11-22 02:06:38,081 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2024-11-22 02:06:38,081 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2024-11-22 02:06:38,082 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2024-11-22 02:06:38,082 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2024-11-22 02:06:38,082 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2024-11-22 02:06:38,082 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 02:06:38,082 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2024-11-22 02:06:38,083 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2024-11-22 02:06:38,083 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 02:06:38,083 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 02:06:38,196 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 02:06:38,200 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 02:06:38,541 INFO L? ?]: Removed 43 outVars from TransFormulas that were not future-live. [2024-11-22 02:06:38,541 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 02:06:38,563 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 02:06:38,564 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-22 02:06:38,565 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:06:38 BoogieIcfgContainer [2024-11-22 02:06:38,565 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 02:06:38,567 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 02:06:38,568 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 02:06:38,571 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 02:06:38,571 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 02:06:37" (1/3) ... [2024-11-22 02:06:38,572 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3013b461 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:06:38, skipping insertion in model container [2024-11-22 02:06:38,572 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:06:37" (2/3) ... [2024-11-22 02:06:38,572 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3013b461 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:06:38, skipping insertion in model container [2024-11-22 02:06:38,573 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:06:38" (3/3) ... [2024-11-22 02:06:38,574 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product45.cil.c [2024-11-22 02:06:38,591 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 02:06:38,591 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-22 02:06:38,656 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 02:06:38,669 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;@33ec6456, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 02:06:38,670 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-22 02:06:38,675 INFO L276 IsEmpty]: Start isEmpty. Operand has 98 states, 74 states have (on average 1.364864864864865) internal successors, (101), 82 states have internal predecessors, (101), 14 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (14), 12 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-22 02:06:38,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-22 02:06:38,686 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:06:38,687 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] [2024-11-22 02:06:38,688 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:06:38,693 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:06:38,694 INFO L85 PathProgramCache]: Analyzing trace with hash -1310639887, now seen corresponding path program 1 times [2024-11-22 02:06:38,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:06:38,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681978374] [2024-11-22 02:06:38,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:06:38,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:06:38,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:06:38,925 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-22 02:06:38,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:06:38,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681978374] [2024-11-22 02:06:38,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [681978374] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:06:38,926 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:06:38,926 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 02:06:38,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433654157] [2024-11-22 02:06:38,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:06:38,932 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-22 02:06:38,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:06:38,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-22 02:06:38,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-22 02:06:38,953 INFO L87 Difference]: Start difference. First operand has 98 states, 74 states have (on average 1.364864864864865) internal successors, (101), 82 states have internal predecessors, (101), 14 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (14), 12 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-22 02:06:38,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:06:38,981 INFO L93 Difference]: Finished difference Result 187 states and 252 transitions. [2024-11-22 02:06:38,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-22 02:06:38,983 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 32 [2024-11-22 02:06:38,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:06:38,991 INFO L225 Difference]: With dead ends: 187 [2024-11-22 02:06:38,992 INFO L226 Difference]: Without dead ends: 89 [2024-11-22 02:06:38,995 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-22 02:06:38,998 INFO L432 NwaCegarLoop]: 123 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, 123 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:06:38,999 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:06:39,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2024-11-22 02:06:39,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2024-11-22 02:06:39,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 67 states have (on average 1.2985074626865671) internal successors, (87), 74 states have internal predecessors, (87), 14 states have call successors, (14), 8 states have call predecessors, (14), 7 states have return successors, (13), 11 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-22 02:06:39,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 114 transitions. [2024-11-22 02:06:39,050 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 114 transitions. Word has length 32 [2024-11-22 02:06:39,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:06:39,053 INFO L471 AbstractCegarLoop]: Abstraction has 89 states and 114 transitions. [2024-11-22 02:06:39,053 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-22 02:06:39,053 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 114 transitions. [2024-11-22 02:06:39,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-11-22 02:06:39,058 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:06:39,059 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] [2024-11-22 02:06:39,059 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-22 02:06:39,059 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:06:39,060 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:06:39,060 INFO L85 PathProgramCache]: Analyzing trace with hash 671106305, now seen corresponding path program 1 times [2024-11-22 02:06:39,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:06:39,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957000537] [2024-11-22 02:06:39,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:06:39,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:06:39,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:06:39,251 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-22 02:06:39,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:06:39,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1957000537] [2024-11-22 02:06:39,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1957000537] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:06:39,253 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:06:39,254 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 02:06:39,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220860060] [2024-11-22 02:06:39,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:06:39,256 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 02:06:39,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:06:39,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 02:06:39,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 02:06:39,258 INFO L87 Difference]: Start difference. First operand 89 states and 114 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-22 02:06:39,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:06:39,289 INFO L93 Difference]: Finished difference Result 170 states and 223 transitions. [2024-11-22 02:06:39,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 02:06:39,289 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 37 [2024-11-22 02:06:39,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:06:39,291 INFO L225 Difference]: With dead ends: 170 [2024-11-22 02:06:39,292 INFO L226 Difference]: Without dead ends: 89 [2024-11-22 02:06:39,293 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 02:06:39,294 INFO L432 NwaCegarLoop]: 112 mSDtfsCounter, 91 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:06:39,294 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 112 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:06:39,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2024-11-22 02:06:39,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2024-11-22 02:06:39,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 67 states have (on average 1.2835820895522387) internal successors, (86), 74 states have internal predecessors, (86), 14 states have call successors, (14), 8 states have call predecessors, (14), 7 states have return successors, (13), 11 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-22 02:06:39,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 113 transitions. [2024-11-22 02:06:39,315 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 113 transitions. Word has length 37 [2024-11-22 02:06:39,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:06:39,316 INFO L471 AbstractCegarLoop]: Abstraction has 89 states and 113 transitions. [2024-11-22 02:06:39,316 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-22 02:06:39,317 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 113 transitions. [2024-11-22 02:06:39,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-11-22 02:06:39,318 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:06:39,318 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] [2024-11-22 02:06:39,320 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 02:06:39,320 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:06:39,321 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:06:39,321 INFO L85 PathProgramCache]: Analyzing trace with hash -1018481259, now seen corresponding path program 1 times [2024-11-22 02:06:39,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:06:39,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753889717] [2024-11-22 02:06:39,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:06:39,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:06:39,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:06:39,425 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-22 02:06:39,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:06:39,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753889717] [2024-11-22 02:06:39,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [753889717] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:06:39,427 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:06:39,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 02:06:39,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108862228] [2024-11-22 02:06:39,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:06:39,428 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 02:06:39,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:06:39,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 02:06:39,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 02:06:39,429 INFO L87 Difference]: Start difference. First operand 89 states and 113 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-22 02:06:39,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:06:39,444 INFO L93 Difference]: Finished difference Result 143 states and 181 transitions. [2024-11-22 02:06:39,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 02:06:39,445 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 43 [2024-11-22 02:06:39,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:06:39,446 INFO L225 Difference]: With dead ends: 143 [2024-11-22 02:06:39,447 INFO L226 Difference]: Without dead ends: 80 [2024-11-22 02:06:39,447 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 02:06:39,449 INFO L432 NwaCegarLoop]: 100 mSDtfsCounter, 12 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:06:39,449 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 184 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:06:39,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2024-11-22 02:06:39,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2024-11-22 02:06:39,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 61 states have (on average 1.2950819672131149) internal successors, (79), 68 states have internal predecessors, (79), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 9 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-22 02:06:39,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 101 transitions. [2024-11-22 02:06:39,460 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 101 transitions. Word has length 43 [2024-11-22 02:06:39,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:06:39,461 INFO L471 AbstractCegarLoop]: Abstraction has 80 states and 101 transitions. [2024-11-22 02:06:39,461 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-22 02:06:39,461 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 101 transitions. [2024-11-22 02:06:39,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-11-22 02:06:39,463 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:06:39,463 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] [2024-11-22 02:06:39,463 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-22 02:06:39,463 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:06:39,464 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:06:39,464 INFO L85 PathProgramCache]: Analyzing trace with hash -488472773, now seen corresponding path program 1 times [2024-11-22 02:06:39,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:06:39,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720811754] [2024-11-22 02:06:39,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:06:39,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:06:39,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:06:39,589 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-22 02:06:39,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:06:39,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720811754] [2024-11-22 02:06:39,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [720811754] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:06:39,590 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:06:39,590 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 02:06:39,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421023288] [2024-11-22 02:06:39,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:06:39,591 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 02:06:39,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:06:39,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 02:06:39,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 02:06:39,592 INFO L87 Difference]: Start difference. First operand 80 states and 101 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), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-22 02:06:39,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:06:39,862 INFO L93 Difference]: Finished difference Result 235 states and 297 transitions. [2024-11-22 02:06:39,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 02:06:39,863 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), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) Word has length 47 [2024-11-22 02:06:39,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:06:39,865 INFO L225 Difference]: With dead ends: 235 [2024-11-22 02:06:39,865 INFO L226 Difference]: Without dead ends: 163 [2024-11-22 02:06:39,868 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-22 02:06:39,869 INFO L432 NwaCegarLoop]: 112 mSDtfsCounter, 206 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 209 SdHoareTripleChecker+Valid, 283 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 02:06:39,869 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [209 Valid, 283 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 02:06:39,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2024-11-22 02:06:39,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 157. [2024-11-22 02:06:39,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 120 states have (on average 1.2583333333333333) internal successors, (151), 128 states have internal predecessors, (151), 18 states have call successors, (18), 15 states have call predecessors, (18), 18 states have return successors, (23), 19 states have call predecessors, (23), 18 states have call successors, (23) [2024-11-22 02:06:39,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 192 transitions. [2024-11-22 02:06:39,912 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 192 transitions. Word has length 47 [2024-11-22 02:06:39,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:06:39,913 INFO L471 AbstractCegarLoop]: Abstraction has 157 states and 192 transitions. [2024-11-22 02:06:39,913 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), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-22 02:06:39,913 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 192 transitions. [2024-11-22 02:06:39,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-11-22 02:06:39,915 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:06:39,915 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] [2024-11-22 02:06:39,915 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-22 02:06:39,915 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:06:39,916 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:06:39,916 INFO L85 PathProgramCache]: Analyzing trace with hash 1464828133, now seen corresponding path program 1 times [2024-11-22 02:06:39,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:06:39,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382829441] [2024-11-22 02:06:39,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:06:39,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:06:39,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:06:40,051 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-22 02:06:40,052 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:06:40,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382829441] [2024-11-22 02:06:40,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1382829441] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:06:40,054 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:06:40,054 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 02:06:40,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26912197] [2024-11-22 02:06:40,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:06:40,055 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 02:06:40,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:06:40,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 02:06:40,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 02:06:40,057 INFO L87 Difference]: Start difference. First operand 157 states and 192 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-22 02:06:40,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:06:40,113 INFO L93 Difference]: Finished difference Result 308 states and 385 transitions. [2024-11-22 02:06:40,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 02:06:40,114 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) Word has length 53 [2024-11-22 02:06:40,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:06:40,116 INFO L225 Difference]: With dead ends: 308 [2024-11-22 02:06:40,116 INFO L226 Difference]: Without dead ends: 159 [2024-11-22 02:06:40,117 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-22 02:06:40,122 INFO L432 NwaCegarLoop]: 98 mSDtfsCounter, 81 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 288 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:06:40,123 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 288 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:06:40,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2024-11-22 02:06:40,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 159. [2024-11-22 02:06:40,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 122 states have (on average 1.2540983606557377) internal successors, (153), 130 states have internal predecessors, (153), 18 states have call successors, (18), 15 states have call predecessors, (18), 18 states have return successors, (23), 19 states have call predecessors, (23), 18 states have call successors, (23) [2024-11-22 02:06:40,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 194 transitions. [2024-11-22 02:06:40,157 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 194 transitions. Word has length 53 [2024-11-22 02:06:40,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:06:40,158 INFO L471 AbstractCegarLoop]: Abstraction has 159 states and 194 transitions. [2024-11-22 02:06:40,158 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-22 02:06:40,158 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 194 transitions. [2024-11-22 02:06:40,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-11-22 02:06:40,162 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:06:40,163 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] [2024-11-22 02:06:40,163 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-22 02:06:40,163 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:06:40,164 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:06:40,164 INFO L85 PathProgramCache]: Analyzing trace with hash 1042126307, now seen corresponding path program 1 times [2024-11-22 02:06:40,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:06:40,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37843561] [2024-11-22 02:06:40,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:06:40,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:06:40,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:06:40,326 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-22 02:06:40,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:06:40,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37843561] [2024-11-22 02:06:40,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [37843561] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:06:40,328 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:06:40,328 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-22 02:06:40,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634090358] [2024-11-22 02:06:40,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:06:40,332 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 02:06:40,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:06:40,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 02:06:40,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-22 02:06:40,333 INFO L87 Difference]: Start difference. First operand 159 states and 194 transitions. Second operand has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 6 states have internal predecessors, (44), 3 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-22 02:06:40,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:06:40,642 INFO L93 Difference]: Finished difference Result 310 states and 380 transitions. [2024-11-22 02:06:40,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-22 02:06:40,643 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 6 states have internal predecessors, (44), 3 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) Word has length 53 [2024-11-22 02:06:40,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:06:40,658 INFO L225 Difference]: With dead ends: 310 [2024-11-22 02:06:40,660 INFO L226 Difference]: Without dead ends: 159 [2024-11-22 02:06:40,661 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2024-11-22 02:06:40,661 INFO L432 NwaCegarLoop]: 77 mSDtfsCounter, 137 mSDsluCounter, 308 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 385 SdHoareTripleChecker+Invalid, 221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 02:06:40,664 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 385 Invalid, 221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 02:06:40,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2024-11-22 02:06:40,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 157. [2024-11-22 02:06:40,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 120 states have (on average 1.225) internal successors, (147), 128 states have internal predecessors, (147), 18 states have call successors, (18), 15 states have call predecessors, (18), 18 states have return successors, (23), 19 states have call predecessors, (23), 18 states have call successors, (23) [2024-11-22 02:06:40,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 188 transitions. [2024-11-22 02:06:40,691 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 188 transitions. Word has length 53 [2024-11-22 02:06:40,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:06:40,692 INFO L471 AbstractCegarLoop]: Abstraction has 157 states and 188 transitions. [2024-11-22 02:06:40,692 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 6 states have internal predecessors, (44), 3 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-22 02:06:40,693 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 188 transitions. [2024-11-22 02:06:40,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-22 02:06:40,696 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:06:40,696 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] [2024-11-22 02:06:40,696 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-22 02:06:40,697 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:06:40,697 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:06:40,697 INFO L85 PathProgramCache]: Analyzing trace with hash -2072494715, now seen corresponding path program 1 times [2024-11-22 02:06:40,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:06:40,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911227687] [2024-11-22 02:06:40,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:06:40,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:06:40,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:06:40,820 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-22 02:06:40,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:06:40,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1911227687] [2024-11-22 02:06:40,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1911227687] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:06:40,821 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:06:40,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 02:06:40,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591063948] [2024-11-22 02:06:40,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:06:40,822 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 02:06:40,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:06:40,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 02:06:40,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 02:06:40,823 INFO L87 Difference]: Start difference. First operand 157 states and 188 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-22 02:06:40,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:06:40,850 INFO L93 Difference]: Finished difference Result 309 states and 378 transitions. [2024-11-22 02:06:40,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 02:06:40,850 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 59 [2024-11-22 02:06:40,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:06:40,852 INFO L225 Difference]: With dead ends: 309 [2024-11-22 02:06:40,852 INFO L226 Difference]: Without dead ends: 160 [2024-11-22 02:06:40,852 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 02:06:40,853 INFO L432 NwaCegarLoop]: 98 mSDtfsCounter, 0 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 386 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:06:40,853 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 386 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:06:40,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2024-11-22 02:06:40,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 160. [2024-11-22 02:06:40,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 123 states have (on average 1.2195121951219512) internal successors, (150), 131 states have internal predecessors, (150), 18 states have call successors, (18), 15 states have call predecessors, (18), 18 states have return successors, (23), 19 states have call predecessors, (23), 18 states have call successors, (23) [2024-11-22 02:06:40,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 191 transitions. [2024-11-22 02:06:40,880 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 191 transitions. Word has length 59 [2024-11-22 02:06:40,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:06:40,881 INFO L471 AbstractCegarLoop]: Abstraction has 160 states and 191 transitions. [2024-11-22 02:06:40,881 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-22 02:06:40,881 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 191 transitions. [2024-11-22 02:06:40,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-22 02:06:40,882 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:06:40,882 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] [2024-11-22 02:06:40,882 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-22 02:06:40,882 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:06:40,883 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:06:40,883 INFO L85 PathProgramCache]: Analyzing trace with hash 1236936713, now seen corresponding path program 1 times [2024-11-22 02:06:40,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:06:40,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820828657] [2024-11-22 02:06:40,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:06:40,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:06:40,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:06:40,964 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-22 02:06:40,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:06:40,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820828657] [2024-11-22 02:06:40,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [820828657] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:06:40,965 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:06:40,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 02:06:40,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348854328] [2024-11-22 02:06:40,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:06:40,966 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 02:06:40,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:06:40,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 02:06:40,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 02:06:40,967 INFO L87 Difference]: Start difference. First operand 160 states and 191 transitions. Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-22 02:06:41,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:06:41,072 INFO L93 Difference]: Finished difference Result 486 states and 600 transitions. [2024-11-22 02:06:41,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 02:06:41,073 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 59 [2024-11-22 02:06:41,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:06:41,076 INFO L225 Difference]: With dead ends: 486 [2024-11-22 02:06:41,076 INFO L226 Difference]: Without dead ends: 334 [2024-11-22 02:06:41,076 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 02:06:41,078 INFO L432 NwaCegarLoop]: 166 mSDtfsCounter, 122 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 320 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 02:06:41,078 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 320 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 02:06:41,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2024-11-22 02:06:41,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 327. [2024-11-22 02:06:41,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 327 states, 249 states have (on average 1.2048192771084338) internal successors, (300), 263 states have internal predecessors, (300), 39 states have call successors, (39), 33 states have call predecessors, (39), 38 states have return successors, (58), 41 states have call predecessors, (58), 39 states have call successors, (58) [2024-11-22 02:06:41,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 397 transitions. [2024-11-22 02:06:41,116 INFO L78 Accepts]: Start accepts. Automaton has 327 states and 397 transitions. Word has length 59 [2024-11-22 02:06:41,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:06:41,117 INFO L471 AbstractCegarLoop]: Abstraction has 327 states and 397 transitions. [2024-11-22 02:06:41,117 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-22 02:06:41,117 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 397 transitions. [2024-11-22 02:06:41,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-22 02:06:41,118 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:06:41,118 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] [2024-11-22 02:06:41,118 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-22 02:06:41,119 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:06:41,119 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:06:41,119 INFO L85 PathProgramCache]: Analyzing trace with hash -1533447185, now seen corresponding path program 1 times [2024-11-22 02:06:41,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:06:41,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369529049] [2024-11-22 02:06:41,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:06:41,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:06:41,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:06:41,282 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-22 02:06:41,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:06:41,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369529049] [2024-11-22 02:06:41,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1369529049] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:06:41,285 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:06:41,285 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-22 02:06:41,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874160086] [2024-11-22 02:06:41,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:06:41,285 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-22 02:06:41,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:06:41,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-22 02:06:41,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-22 02:06:41,286 INFO L87 Difference]: Start difference. First operand 327 states and 397 transitions. Second operand has 8 states, 8 states have (on average 6.25) internal successors, (50), 7 states have internal predecessors, (50), 4 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-22 02:06:41,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:06:41,710 INFO L93 Difference]: Finished difference Result 882 states and 1108 transitions. [2024-11-22 02:06:41,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-22 02:06:41,711 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 7 states have internal predecessors, (50), 4 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) Word has length 63 [2024-11-22 02:06:41,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:06:41,714 INFO L225 Difference]: With dead ends: 882 [2024-11-22 02:06:41,714 INFO L226 Difference]: Without dead ends: 613 [2024-11-22 02:06:41,716 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2024-11-22 02:06:41,716 INFO L432 NwaCegarLoop]: 119 mSDtfsCounter, 338 mSDsluCounter, 407 mSDsCounter, 0 mSdLazyCounter, 318 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 344 SdHoareTripleChecker+Valid, 526 SdHoareTripleChecker+Invalid, 397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 02:06:41,717 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [344 Valid, 526 Invalid, 397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 318 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 02:06:41,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 613 states. [2024-11-22 02:06:41,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 613 to 563. [2024-11-22 02:06:41,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 563 states, 427 states have (on average 1.1943793911007026) internal successors, (510), 452 states have internal predecessors, (510), 67 states have call successors, (67), 58 states have call predecessors, (67), 68 states have return successors, (96), 70 states have call predecessors, (96), 67 states have call successors, (96) [2024-11-22 02:06:41,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 563 states to 563 states and 673 transitions. [2024-11-22 02:06:41,766 INFO L78 Accepts]: Start accepts. Automaton has 563 states and 673 transitions. Word has length 63 [2024-11-22 02:06:41,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:06:41,766 INFO L471 AbstractCegarLoop]: Abstraction has 563 states and 673 transitions. [2024-11-22 02:06:41,767 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 7 states have internal predecessors, (50), 4 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-22 02:06:41,767 INFO L276 IsEmpty]: Start isEmpty. Operand 563 states and 673 transitions. [2024-11-22 02:06:41,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-22 02:06:41,768 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:06:41,768 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:06:41,769 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-22 02:06:41,769 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:06:41,769 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:06:41,769 INFO L85 PathProgramCache]: Analyzing trace with hash -706462267, now seen corresponding path program 1 times [2024-11-22 02:06:41,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:06:41,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110447495] [2024-11-22 02:06:41,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:06:41,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:06:41,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:06:41,948 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 8 proven. 18 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-22 02:06:41,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:06:41,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1110447495] [2024-11-22 02:06:41,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1110447495] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 02:06:41,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1988573566] [2024-11-22 02:06:41,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:06:41,948 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 02:06:41,949 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 02:06:41,953 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 02:06:41,954 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-22 02:06:42,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:06:42,053 INFO L255 TraceCheckSpWp]: Trace formula consists of 341 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-22 02:06:42,065 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 02:06:42,252 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 28 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:06:42,253 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 02:06:42,501 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 18 proven. 8 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-22 02:06:42,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1988573566] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 02:06:42,501 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 02:06:42,502 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 6, 6] total 15 [2024-11-22 02:06:42,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666813496] [2024-11-22 02:06:42,502 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 02:06:42,503 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-22 02:06:42,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:06:42,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-22 02:06:42,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2024-11-22 02:06:42,504 INFO L87 Difference]: Start difference. First operand 563 states and 673 transitions. Second operand has 15 states, 15 states have (on average 9.666666666666666) internal successors, (145), 13 states have internal predecessors, (145), 7 states have call successors, (24), 4 states have call predecessors, (24), 8 states have return successors, (22), 9 states have call predecessors, (22), 7 states have call successors, (22) [2024-11-22 02:06:43,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:06:43,064 INFO L93 Difference]: Finished difference Result 1278 states and 1592 transitions. [2024-11-22 02:06:43,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-22 02:06:43,065 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 9.666666666666666) internal successors, (145), 13 states have internal predecessors, (145), 7 states have call successors, (24), 4 states have call predecessors, (24), 8 states have return successors, (22), 9 states have call predecessors, (22), 7 states have call successors, (22) Word has length 106 [2024-11-22 02:06:43,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:06:43,069 INFO L225 Difference]: With dead ends: 1278 [2024-11-22 02:06:43,070 INFO L226 Difference]: Without dead ends: 771 [2024-11-22 02:06:43,072 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 209 SyntacticMatches, 4 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 164 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=208, Invalid=604, Unknown=0, NotChecked=0, Total=812 [2024-11-22 02:06:43,073 INFO L432 NwaCegarLoop]: 211 mSDtfsCounter, 367 mSDsluCounter, 1193 mSDsCounter, 0 mSdLazyCounter, 324 mSolverCounterSat, 116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 369 SdHoareTripleChecker+Valid, 1404 SdHoareTripleChecker+Invalid, 440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 116 IncrementalHoareTripleChecker+Valid, 324 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 02:06:43,073 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [369 Valid, 1404 Invalid, 440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [116 Valid, 324 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 02:06:43,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 771 states. [2024-11-22 02:06:43,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 771 to 630. [2024-11-22 02:06:43,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 630 states, 473 states have (on average 1.1966173361522199) internal successors, (566), 506 states have internal predecessors, (566), 78 states have call successors, (78), 69 states have call predecessors, (78), 78 states have return successors, (107), 77 states have call predecessors, (107), 78 states have call successors, (107) [2024-11-22 02:06:43,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 630 states to 630 states and 751 transitions. [2024-11-22 02:06:43,140 INFO L78 Accepts]: Start accepts. Automaton has 630 states and 751 transitions. Word has length 106 [2024-11-22 02:06:43,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:06:43,141 INFO L471 AbstractCegarLoop]: Abstraction has 630 states and 751 transitions. [2024-11-22 02:06:43,141 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 9.666666666666666) internal successors, (145), 13 states have internal predecessors, (145), 7 states have call successors, (24), 4 states have call predecessors, (24), 8 states have return successors, (22), 9 states have call predecessors, (22), 7 states have call successors, (22) [2024-11-22 02:06:43,141 INFO L276 IsEmpty]: Start isEmpty. Operand 630 states and 751 transitions. [2024-11-22 02:06:43,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2024-11-22 02:06:43,145 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:06:43,145 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:06:43,155 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-22 02:06:43,346 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-22 02:06:43,346 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:06:43,347 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:06:43,347 INFO L85 PathProgramCache]: Analyzing trace with hash -943972392, now seen corresponding path program 1 times [2024-11-22 02:06:43,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:06:43,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497862030] [2024-11-22 02:06:43,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:06:43,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:06:43,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:06:43,675 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 89 proven. 29 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2024-11-22 02:06:43,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:06:43,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [497862030] [2024-11-22 02:06:43,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [497862030] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 02:06:43,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [470282474] [2024-11-22 02:06:43,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:06:43,676 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 02:06:43,676 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 02:06:43,679 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) [2024-11-22 02:06:43,680 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-22 02:06:43,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:06:43,811 INFO L255 TraceCheckSpWp]: Trace formula consists of 554 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-22 02:06:43,817 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 02:06:44,030 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 158 proven. 4 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2024-11-22 02:06:44,031 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 02:06:44,533 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 78 proven. 42 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2024-11-22 02:06:44,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [470282474] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 02:06:44,533 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 02:06:44,534 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 11] total 25 [2024-11-22 02:06:44,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117286496] [2024-11-22 02:06:44,534 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 02:06:44,535 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-22 02:06:44,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:06:44,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-22 02:06:44,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=151, Invalid=449, Unknown=0, NotChecked=0, Total=600 [2024-11-22 02:06:44,540 INFO L87 Difference]: Start difference. First operand 630 states and 751 transitions. Second operand has 25 states, 25 states have (on average 8.56) internal successors, (214), 24 states have internal predecessors, (214), 11 states have call successors, (35), 6 states have call predecessors, (35), 10 states have return successors, (37), 10 states have call predecessors, (37), 11 states have call successors, (37) [2024-11-22 02:06:45,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:06:45,262 INFO L93 Difference]: Finished difference Result 1406 states and 1749 transitions. [2024-11-22 02:06:45,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-22 02:06:45,263 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 8.56) internal successors, (214), 24 states have internal predecessors, (214), 11 states have call successors, (35), 6 states have call predecessors, (35), 10 states have return successors, (37), 10 states have call predecessors, (37), 11 states have call successors, (37) Word has length 192 [2024-11-22 02:06:45,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:06:45,268 INFO L225 Difference]: With dead ends: 1406 [2024-11-22 02:06:45,268 INFO L226 Difference]: Without dead ends: 784 [2024-11-22 02:06:45,271 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 406 GetRequests, 371 SyntacticMatches, 3 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 300 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=275, Invalid=847, Unknown=0, NotChecked=0, Total=1122 [2024-11-22 02:06:45,271 INFO L432 NwaCegarLoop]: 106 mSDtfsCounter, 568 mSDsluCounter, 535 mSDsCounter, 0 mSdLazyCounter, 773 mSolverCounterSat, 221 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 571 SdHoareTripleChecker+Valid, 641 SdHoareTripleChecker+Invalid, 994 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 221 IncrementalHoareTripleChecker+Valid, 773 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-22 02:06:45,271 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [571 Valid, 641 Invalid, 994 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [221 Valid, 773 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-22 02:06:45,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 784 states. [2024-11-22 02:06:45,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 784 to 684. [2024-11-22 02:06:45,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 684 states, 516 states have (on average 1.1705426356589148) internal successors, (604), 546 states have internal predecessors, (604), 87 states have call successors, (87), 78 states have call predecessors, (87), 80 states have return successors, (103), 82 states have call predecessors, (103), 87 states have call successors, (103) [2024-11-22 02:06:45,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 684 states to 684 states and 794 transitions. [2024-11-22 02:06:45,330 INFO L78 Accepts]: Start accepts. Automaton has 684 states and 794 transitions. Word has length 192 [2024-11-22 02:06:45,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:06:45,330 INFO L471 AbstractCegarLoop]: Abstraction has 684 states and 794 transitions. [2024-11-22 02:06:45,331 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 8.56) internal successors, (214), 24 states have internal predecessors, (214), 11 states have call successors, (35), 6 states have call predecessors, (35), 10 states have return successors, (37), 10 states have call predecessors, (37), 11 states have call successors, (37) [2024-11-22 02:06:45,331 INFO L276 IsEmpty]: Start isEmpty. Operand 684 states and 794 transitions. [2024-11-22 02:06:45,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2024-11-22 02:06:45,334 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:06:45,335 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:06:45,344 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-22 02:06:45,536 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,SelfDestructingSolverStorable10 [2024-11-22 02:06:45,536 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:06:45,537 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:06:45,537 INFO L85 PathProgramCache]: Analyzing trace with hash -95679664, now seen corresponding path program 1 times [2024-11-22 02:06:45,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:06:45,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550503512] [2024-11-22 02:06:45,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:06:45,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:06:45,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:06:45,781 INFO L134 CoverageAnalysis]: Checked inductivity of 258 backedges. 89 proven. 65 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2024-11-22 02:06:45,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:06:45,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [550503512] [2024-11-22 02:06:45,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [550503512] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 02:06:45,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [53754729] [2024-11-22 02:06:45,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:06:45,782 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 02:06:45,783 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 02:06:45,785 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 02:06:45,786 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-22 02:06:45,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:06:45,916 INFO L255 TraceCheckSpWp]: Trace formula consists of 586 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-22 02:06:45,921 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 02:06:46,073 INFO L134 CoverageAnalysis]: Checked inductivity of 258 backedges. 195 proven. 9 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2024-11-22 02:06:46,074 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 02:06:46,492 INFO L134 CoverageAnalysis]: Checked inductivity of 258 backedges. 99 proven. 54 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2024-11-22 02:06:46,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [53754729] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 02:06:46,493 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 02:06:46,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 8, 8] total 23 [2024-11-22 02:06:46,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010606800] [2024-11-22 02:06:46,493 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 02:06:46,494 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-22 02:06:46,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:06:46,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-22 02:06:46,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=425, Unknown=0, NotChecked=0, Total=506 [2024-11-22 02:06:46,496 INFO L87 Difference]: Start difference. First operand 684 states and 794 transitions. Second operand has 23 states, 23 states have (on average 10.173913043478262) internal successors, (234), 20 states have internal predecessors, (234), 9 states have call successors, (40), 5 states have call predecessors, (40), 14 states have return successors, (40), 12 states have call predecessors, (40), 9 states have call successors, (40) [2024-11-22 02:06:47,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:06:47,228 INFO L93 Difference]: Finished difference Result 1343 states and 1576 transitions. [2024-11-22 02:06:47,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-22 02:06:47,228 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 10.173913043478262) internal successors, (234), 20 states have internal predecessors, (234), 9 states have call successors, (40), 5 states have call predecessors, (40), 14 states have return successors, (40), 12 states have call predecessors, (40), 9 states have call successors, (40) Word has length 204 [2024-11-22 02:06:47,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:06:47,232 INFO L225 Difference]: With dead ends: 1343 [2024-11-22 02:06:47,233 INFO L226 Difference]: Without dead ends: 715 [2024-11-22 02:06:47,235 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 441 GetRequests, 404 SyntacticMatches, 1 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 213 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=299, Invalid=1107, Unknown=0, NotChecked=0, Total=1406 [2024-11-22 02:06:47,235 INFO L432 NwaCegarLoop]: 108 mSDtfsCounter, 533 mSDsluCounter, 758 mSDsCounter, 0 mSdLazyCounter, 759 mSolverCounterSat, 198 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 536 SdHoareTripleChecker+Valid, 866 SdHoareTripleChecker+Invalid, 957 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 198 IncrementalHoareTripleChecker+Valid, 759 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-22 02:06:47,236 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [536 Valid, 866 Invalid, 957 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [198 Valid, 759 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-22 02:06:47,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 715 states. [2024-11-22 02:06:47,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 715 to 699. [2024-11-22 02:06:47,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 699 states, 526 states have (on average 1.1596958174904943) internal successors, (610), 556 states have internal predecessors, (610), 87 states have call successors, (87), 83 states have call predecessors, (87), 85 states have return successors, (103), 82 states have call predecessors, (103), 87 states have call successors, (103) [2024-11-22 02:06:47,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 699 states to 699 states and 800 transitions. [2024-11-22 02:06:47,288 INFO L78 Accepts]: Start accepts. Automaton has 699 states and 800 transitions. Word has length 204 [2024-11-22 02:06:47,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:06:47,289 INFO L471 AbstractCegarLoop]: Abstraction has 699 states and 800 transitions. [2024-11-22 02:06:47,289 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 10.173913043478262) internal successors, (234), 20 states have internal predecessors, (234), 9 states have call successors, (40), 5 states have call predecessors, (40), 14 states have return successors, (40), 12 states have call predecessors, (40), 9 states have call successors, (40) [2024-11-22 02:06:47,289 INFO L276 IsEmpty]: Start isEmpty. Operand 699 states and 800 transitions. [2024-11-22 02:06:47,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2024-11-22 02:06:47,292 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:06:47,293 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:06:47,302 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-22 02:06:47,493 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 02:06:47,493 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:06:47,494 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:06:47,494 INFO L85 PathProgramCache]: Analyzing trace with hash 1738016256, now seen corresponding path program 1 times [2024-11-22 02:06:47,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:06:47,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225981709] [2024-11-22 02:06:47,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:06:47,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:06:47,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:06:47,733 INFO L134 CoverageAnalysis]: Checked inductivity of 259 backedges. 108 proven. 0 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2024-11-22 02:06:47,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:06:47,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1225981709] [2024-11-22 02:06:47,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1225981709] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:06:47,734 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:06:47,734 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-22 02:06:47,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955225684] [2024-11-22 02:06:47,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:06:47,735 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-22 02:06:47,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:06:47,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-22 02:06:47,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-22 02:06:47,736 INFO L87 Difference]: Start difference. First operand 699 states and 800 transitions. Second operand has 10 states, 10 states have (on average 10.2) internal successors, (102), 8 states have internal predecessors, (102), 3 states have call successors, (15), 2 states have call predecessors, (15), 4 states have return successors, (17), 5 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-22 02:06:48,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:06:48,121 INFO L93 Difference]: Finished difference Result 1855 states and 2169 transitions. [2024-11-22 02:06:48,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-22 02:06:48,122 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.2) internal successors, (102), 8 states have internal predecessors, (102), 3 states have call successors, (15), 2 states have call predecessors, (15), 4 states have return successors, (17), 5 states have call predecessors, (17), 3 states have call successors, (17) Word has length 205 [2024-11-22 02:06:48,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:06:48,129 INFO L225 Difference]: With dead ends: 1855 [2024-11-22 02:06:48,129 INFO L226 Difference]: Without dead ends: 1164 [2024-11-22 02:06:48,131 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=397, Unknown=0, NotChecked=0, Total=462 [2024-11-22 02:06:48,132 INFO L432 NwaCegarLoop]: 163 mSDtfsCounter, 137 mSDsluCounter, 836 mSDsCounter, 0 mSdLazyCounter, 403 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 999 SdHoareTripleChecker+Invalid, 412 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 403 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 02:06:48,133 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 999 Invalid, 412 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 403 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 02:06:48,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1164 states. [2024-11-22 02:06:48,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1164 to 1112. [2024-11-22 02:06:48,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1112 states, 844 states have (on average 1.1244075829383886) internal successors, (949), 877 states have internal predecessors, (949), 137 states have call successors, (137), 133 states have call predecessors, (137), 130 states have return successors, (151), 126 states have call predecessors, (151), 137 states have call successors, (151) [2024-11-22 02:06:48,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1112 states to 1112 states and 1237 transitions. [2024-11-22 02:06:48,232 INFO L78 Accepts]: Start accepts. Automaton has 1112 states and 1237 transitions. Word has length 205 [2024-11-22 02:06:48,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:06:48,233 INFO L471 AbstractCegarLoop]: Abstraction has 1112 states and 1237 transitions. [2024-11-22 02:06:48,233 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.2) internal successors, (102), 8 states have internal predecessors, (102), 3 states have call successors, (15), 2 states have call predecessors, (15), 4 states have return successors, (17), 5 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-22 02:06:48,233 INFO L276 IsEmpty]: Start isEmpty. Operand 1112 states and 1237 transitions. [2024-11-22 02:06:48,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2024-11-22 02:06:48,238 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:06:48,238 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:06:48,238 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-22 02:06:48,239 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:06:48,239 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:06:48,239 INFO L85 PathProgramCache]: Analyzing trace with hash 1063896010, now seen corresponding path program 1 times [2024-11-22 02:06:48,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:06:48,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598071043] [2024-11-22 02:06:48,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:06:48,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:06:48,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:06:48,799 INFO L134 CoverageAnalysis]: Checked inductivity of 263 backedges. 95 proven. 57 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2024-11-22 02:06:48,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:06:48,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1598071043] [2024-11-22 02:06:48,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1598071043] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 02:06:48,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [922426813] [2024-11-22 02:06:48,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:06:48,800 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 02:06:48,800 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 02:06:48,802 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 02:06:48,804 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-22 02:06:48,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:06:48,935 INFO L255 TraceCheckSpWp]: Trace formula consists of 605 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-22 02:06:48,939 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 02:06:49,133 INFO L134 CoverageAnalysis]: Checked inductivity of 263 backedges. 138 proven. 26 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2024-11-22 02:06:49,133 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 02:06:49,732 INFO L134 CoverageAnalysis]: Checked inductivity of 263 backedges. 99 proven. 45 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2024-11-22 02:06:49,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [922426813] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 02:06:49,733 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 02:06:49,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 8, 13] total 22 [2024-11-22 02:06:49,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519148338] [2024-11-22 02:06:49,733 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 02:06:49,734 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-22 02:06:49,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:06:49,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-22 02:06:49,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=121, Invalid=341, Unknown=0, NotChecked=0, Total=462 [2024-11-22 02:06:49,737 INFO L87 Difference]: Start difference. First operand 1112 states and 1237 transitions. Second operand has 22 states, 22 states have (on average 11.136363636363637) internal successors, (245), 21 states have internal predecessors, (245), 15 states have call successors, (45), 8 states have call predecessors, (45), 14 states have return successors, (44), 15 states have call predecessors, (44), 15 states have call successors, (44) [2024-11-22 02:06:50,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:06:50,587 INFO L93 Difference]: Finished difference Result 2168 states and 2457 transitions. [2024-11-22 02:06:50,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-22 02:06:50,588 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 11.136363636363637) internal successors, (245), 21 states have internal predecessors, (245), 15 states have call successors, (45), 8 states have call predecessors, (45), 14 states have return successors, (44), 15 states have call predecessors, (44), 15 states have call successors, (44) Word has length 213 [2024-11-22 02:06:50,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:06:50,596 INFO L225 Difference]: With dead ends: 2168 [2024-11-22 02:06:50,596 INFO L226 Difference]: Without dead ends: 1522 [2024-11-22 02:06:50,599 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 465 GetRequests, 421 SyntacticMatches, 8 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 334 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=404, Invalid=1002, Unknown=0, NotChecked=0, Total=1406 [2024-11-22 02:06:50,600 INFO L432 NwaCegarLoop]: 155 mSDtfsCounter, 646 mSDsluCounter, 748 mSDsCounter, 0 mSdLazyCounter, 925 mSolverCounterSat, 234 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 649 SdHoareTripleChecker+Valid, 903 SdHoareTripleChecker+Invalid, 1159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 234 IncrementalHoareTripleChecker+Valid, 925 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-22 02:06:50,600 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [649 Valid, 903 Invalid, 1159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [234 Valid, 925 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-22 02:06:50,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1522 states. [2024-11-22 02:06:50,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1522 to 1394. [2024-11-22 02:06:50,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1394 states, 1056 states have (on average 1.1278409090909092) internal successors, (1191), 1094 states have internal predecessors, (1191), 175 states have call successors, (175), 170 states have call predecessors, (175), 162 states have return successors, (191), 158 states have call predecessors, (191), 175 states have call successors, (191) [2024-11-22 02:06:50,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1394 states to 1394 states and 1557 transitions. [2024-11-22 02:06:50,728 INFO L78 Accepts]: Start accepts. Automaton has 1394 states and 1557 transitions. Word has length 213 [2024-11-22 02:06:50,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:06:50,728 INFO L471 AbstractCegarLoop]: Abstraction has 1394 states and 1557 transitions. [2024-11-22 02:06:50,729 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 11.136363636363637) internal successors, (245), 21 states have internal predecessors, (245), 15 states have call successors, (45), 8 states have call predecessors, (45), 14 states have return successors, (44), 15 states have call predecessors, (44), 15 states have call successors, (44) [2024-11-22 02:06:50,729 INFO L276 IsEmpty]: Start isEmpty. Operand 1394 states and 1557 transitions. [2024-11-22 02:06:50,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2024-11-22 02:06:50,734 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:06:50,734 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:06:50,744 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-22 02:06:50,934 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 02:06:50,935 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:06:50,935 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:06:50,935 INFO L85 PathProgramCache]: Analyzing trace with hash -161147261, now seen corresponding path program 1 times [2024-11-22 02:06:50,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:06:50,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442499642] [2024-11-22 02:06:50,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:06:50,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:06:50,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:06:51,726 INFO L134 CoverageAnalysis]: Checked inductivity of 442 backedges. 97 proven. 140 refuted. 0 times theorem prover too weak. 205 trivial. 0 not checked. [2024-11-22 02:06:51,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:06:51,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442499642] [2024-11-22 02:06:51,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [442499642] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 02:06:51,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [975702194] [2024-11-22 02:06:51,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:06:51,727 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 02:06:51,728 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 02:06:51,730 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 02:06:51,731 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-22 02:06:51,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:06:51,920 INFO L255 TraceCheckSpWp]: Trace formula consists of 727 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-22 02:06:51,927 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 02:06:52,270 INFO L134 CoverageAnalysis]: Checked inductivity of 442 backedges. 155 proven. 89 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2024-11-22 02:06:52,271 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 02:06:53,136 INFO L134 CoverageAnalysis]: Checked inductivity of 442 backedges. 96 proven. 136 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2024-11-22 02:06:53,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [975702194] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 02:06:53,136 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 02:06:53,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 11, 16] total 30 [2024-11-22 02:06:53,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550433737] [2024-11-22 02:06:53,137 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 02:06:53,138 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-11-22 02:06:53,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:06:53,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-11-22 02:06:53,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=151, Invalid=719, Unknown=0, NotChecked=0, Total=870 [2024-11-22 02:06:53,140 INFO L87 Difference]: Start difference. First operand 1394 states and 1557 transitions. Second operand has 30 states, 30 states have (on average 10.366666666666667) internal successors, (311), 29 states have internal predecessors, (311), 19 states have call successors, (60), 11 states have call predecessors, (60), 20 states have return successors, (62), 19 states have call predecessors, (62), 19 states have call successors, (62) [2024-11-22 02:06:54,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:06:54,238 INFO L93 Difference]: Finished difference Result 2250 states and 2527 transitions. [2024-11-22 02:06:54,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-22 02:06:54,238 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 10.366666666666667) internal successors, (311), 29 states have internal predecessors, (311), 19 states have call successors, (60), 11 states have call predecessors, (60), 20 states have return successors, (62), 19 states have call predecessors, (62), 19 states have call successors, (62) Word has length 263 [2024-11-22 02:06:54,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:06:54,242 INFO L225 Difference]: With dead ends: 2250 [2024-11-22 02:06:54,242 INFO L226 Difference]: Without dead ends: 0 [2024-11-22 02:06:54,248 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 569 GetRequests, 515 SyntacticMatches, 9 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 468 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=473, Invalid=1689, Unknown=0, NotChecked=0, Total=2162 [2024-11-22 02:06:54,249 INFO L432 NwaCegarLoop]: 145 mSDtfsCounter, 705 mSDsluCounter, 1323 mSDsCounter, 0 mSdLazyCounter, 1583 mSolverCounterSat, 286 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 707 SdHoareTripleChecker+Valid, 1468 SdHoareTripleChecker+Invalid, 1869 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 286 IncrementalHoareTripleChecker+Valid, 1583 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-22 02:06:54,249 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [707 Valid, 1468 Invalid, 1869 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [286 Valid, 1583 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-22 02:06:54,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-22 02:06:54,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-22 02:06:54,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:06:54,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-22 02:06:54,251 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 263 [2024-11-22 02:06:54,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:06:54,251 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-22 02:06:54,252 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 10.366666666666667) internal successors, (311), 29 states have internal predecessors, (311), 19 states have call successors, (60), 11 states have call predecessors, (60), 20 states have return successors, (62), 19 states have call predecessors, (62), 19 states have call successors, (62) [2024-11-22 02:06:54,252 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-22 02:06:54,252 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-22 02:06:54,254 INFO L782 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-22 02:06:54,263 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-22 02:06:54,455 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-22 02:06:54,458 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:06:54,460 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-22 02:07:05,335 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-22 02:07:05,384 WARN L156 FloydHoareUtils]: Requires clause for changeMethaneLevel contained old-variable. Original clause: (let ((.cse5 (= |old(~methaneLevelCritical~0)| 0)) (.cse2 (= ~pumpRunning~0 0)) (.cse6 (= ~methaneLevelCritical~0 0))) (and (let ((.cse0 (= ~waterLevel~0 1)) (.cse3 (= ~waterLevel~0 0)) (.cse4 (= 2 ~waterLevel~0)) (.cse1 (= ~pumpRunning~0 1))) (or (and .cse0 .cse1) (and .cse2 .cse3) (and .cse2 .cse4) (and .cse2 .cse0) (and .cse3 .cse1) (and .cse4 .cse1))) (= 1 ~systemActive~0) (or (not .cse5) .cse6) (or .cse5 (and .cse2 (not .cse6))))) Eliminated clause: (let ((.cse2 (= ~pumpRunning~0 0))) (and (let ((.cse0 (= ~waterLevel~0 1)) (.cse3 (= ~waterLevel~0 0)) (.cse4 (= 2 ~waterLevel~0)) (.cse1 (= ~pumpRunning~0 1))) (or (and .cse0 .cse1) (and .cse2 .cse3) (and .cse2 .cse4) (and .cse2 .cse0) (and .cse3 .cse1) (and .cse4 .cse1))) (exists ((|old(~methaneLevelCritical~0)| Int)) (let ((.cse5 (= |old(~methaneLevelCritical~0)| 0)) (.cse6 (= ~methaneLevelCritical~0 0))) (and (or (not .cse5) .cse6) (or .cse5 (and .cse2 (not .cse6)))))) (= 1 ~systemActive~0))) [2024-11-22 02:07:05,403 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-22 02:07:05,425 WARN L156 FloydHoareUtils]: Requires clause for timeShift contained old-variable. Original clause: (let ((.cse19 (= |old(~waterLevel~0)| 0)) (.cse17 (= |old(~pumpRunning~0)| 0)) (.cse14 (= |old(~pumpRunning~0)| 1)) (.cse16 (= |old(~waterLevel~0)| 1)) (.cse15 (= |old(~waterLevel~0)| 2))) (let ((.cse1 (= ~pumpRunning~0 0)) (.cse3 (not .cse15)) (.cse2 (= 2 ~waterLevel~0)) (.cse9 (= ~waterLevel~0 0)) (.cse8 (= ~waterLevel~0 1)) (.cse12 (= ~pumpRunning~0 1)) (.cse4 (not .cse16)) (.cse11 (not .cse14)) (.cse0 (not .cse17)) (.cse5 (= ~methaneLevelCritical~0 0)) (.cse6 (< |old(~switchedOnBeforeTS~0)| 1)) (.cse10 (not .cse19)) (.cse7 (<= 1 ~switchedOnBeforeTS~0))) (and (or .cse0 (and .cse1 .cse2) .cse3) (or .cse4 .cse5 .cse6 .cse7) (or .cse0 .cse4 (and .cse1 .cse8)) (or .cse0 (and .cse1 .cse9) .cse10) (or .cse11 .cse3 (and .cse2 .cse12)) (let ((.cse13 (= 1 ~systemActive~0)) (.cse18 (<= |old(~waterLevel~0)| 2))) (or (and .cse13 .cse14 .cse15) (and .cse16 .cse13 .cse17) (and .cse13 .cse14 .cse18 .cse19) (and .cse13 .cse17 .cse19) (and .cse13 .cse17 .cse15) (and .cse16 .cse13 .cse14 .cse18))) (or .cse4 .cse6 .cse11 .cse7) (or .cse11 .cse10 (and .cse9 .cse12)) (or (and .cse8 .cse12) .cse4 .cse11) (or .cse0 .cse5 .cse6 .cse10 .cse7)))) Eliminated clause: (exists ((|old(~pumpRunning~0)| Int) (|old(~switchedOnBeforeTS~0)| Int) (|old(~waterLevel~0)| Int)) (let ((.cse14 (= |old(~pumpRunning~0)| 1)) (.cse16 (= |old(~waterLevel~0)| 1)) (.cse18 (= |old(~waterLevel~0)| 0)) (.cse15 (= |old(~waterLevel~0)| 2)) (.cse17 (= |old(~pumpRunning~0)| 0))) (let ((.cse0 (not .cse17)) (.cse1 (= ~pumpRunning~0 0)) (.cse3 (not .cse15)) (.cse2 (= 2 ~waterLevel~0)) (.cse4 (= ~methaneLevelCritical~0 0)) (.cse5 (< |old(~switchedOnBeforeTS~0)| 1)) (.cse6 (< 0 ~switchedOnBeforeTS~0)) (.cse7 (not .cse18)) (.cse11 (= ~waterLevel~0 0)) (.cse9 (= ~waterLevel~0 1)) (.cse12 (= ~pumpRunning~0 1)) (.cse8 (not .cse16)) (.cse10 (not .cse14))) (and (or .cse0 (and .cse1 .cse2) .cse3) (or .cse0 .cse4 .cse5 .cse6 .cse7) (or .cse0 .cse8 (and .cse1 .cse9)) (or .cse8 .cse5 .cse6 .cse10) (or .cse0 (and .cse1 .cse11) .cse7) (or .cse10 .cse3 (and .cse2 .cse12)) (or .cse8 .cse4 .cse5 .cse6) (or .cse10 .cse7 (and .cse11 .cse12)) (let ((.cse13 (= 1 ~systemActive~0))) (or (and .cse13 .cse14 .cse15) (and .cse16 .cse13 .cse17) (and .cse13 .cse14 .cse18) (and .cse16 .cse13 .cse14) (and .cse13 .cse17 .cse18) (and .cse13 .cse17 .cse15))) (or (and .cse9 .cse12) .cse8 .cse10))))) [2024-11-22 02:07:05,448 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-22 02:07:05,461 WARN L156 FloydHoareUtils]: Requires clause for waterRise contained old-variable. Original clause: (let ((.cse1 (= |old(~waterLevel~0)| 1)) (.cse2 (= |old(~waterLevel~0)| 2)) (.cse0 (= |old(~waterLevel~0)| 0))) (and (or (not .cse0) (= ~waterLevel~0 0)) (or (not .cse1) (= ~waterLevel~0 1)) (or (= 2 ~waterLevel~0) (not .cse2)) (let ((.cse7 (= ~pumpRunning~0 0)) (.cse8 (<= |old(~waterLevel~0)| 1)) (.cse3 (not (= ~switchedOnBeforeTS~0 0))) (.cse4 (= ~methaneLevelCritical~0 0)) (.cse5 (= 1 ~systemActive~0)) (.cse6 (= ~pumpRunning~0 1))) (or (and .cse3 .cse1 .cse4 .cse5 .cse6) (and .cse7 .cse5 .cse2) (and .cse7 .cse1 .cse5 .cse8) (and .cse4 .cse5 .cse2 .cse6) (and .cse7 .cse5 .cse8 .cse0) (and .cse3 .cse4 .cse5 .cse0 .cse6))))) Eliminated clause: (exists ((|old(~waterLevel~0)| Int)) (let ((.cse7 (= |old(~waterLevel~0)| 0)) (.cse1 (= |old(~waterLevel~0)| 1)) (.cse6 (= |old(~waterLevel~0)| 2))) (and (let ((.cse5 (= ~pumpRunning~0 0)) (.cse0 (not (= ~switchedOnBeforeTS~0 0))) (.cse2 (= ~methaneLevelCritical~0 0)) (.cse3 (= 1 ~systemActive~0)) (.cse4 (= ~pumpRunning~0 1))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse5 .cse3 .cse6) (and .cse2 .cse3 .cse6 .cse4) (and .cse5 .cse1 .cse3) (and .cse5 .cse3 .cse7) (and .cse0 .cse2 .cse3 .cse7 .cse4))) (or (not .cse7) (= ~waterLevel~0 0)) (or (not .cse1) (= ~waterLevel~0 1)) (or (= 2 ~waterLevel~0) (not .cse6))))) [2024-11-22 02:07:05,469 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-22 02:07:05,478 WARN L156 FloydHoareUtils]: Requires clause for processEnvironment__wrappee__methaneQuery contained old-variable. Original clause: (let ((.cse3 (= |old(~pumpRunning~0)| 0)) (.cse0 (= |old(~pumpRunning~0)| 1)) (.cse5 (= ~pumpRunning~0 0))) (and (let ((.cse2 (<= 1 ~switchedOnBeforeTS~0)) (.cse4 (= ~waterLevel~0 0)) (.cse1 (= ~waterLevel~0 1))) (or (and .cse0 .cse1 .cse2) (and .cse3 .cse4) (and .cse0 .cse2 .cse4) (and (= 2 ~waterLevel~0) .cse3) (and .cse3 .cse1))) (or (not .cse3) .cse5) (= 1 ~systemActive~0) (or (not .cse0) (= ~pumpRunning~0 1)) (or .cse5 (= ~methaneLevelCritical~0 0)))) Eliminated clause: (let ((.cse5 (= ~pumpRunning~0 0))) (and (exists ((|old(~pumpRunning~0)| Int)) (let ((.cse3 (= |old(~pumpRunning~0)| 0)) (.cse0 (= |old(~pumpRunning~0)| 1))) (and (let ((.cse2 (<= 1 ~switchedOnBeforeTS~0)) (.cse4 (= ~waterLevel~0 0)) (.cse1 (= ~waterLevel~0 1))) (or (and .cse0 .cse1 .cse2) (and .cse3 .cse4) (and .cse0 .cse2 .cse4) (and (= 2 ~waterLevel~0) .cse3) (and .cse3 .cse1))) (or (not .cse3) .cse5) (or (not .cse0) (= ~pumpRunning~0 1))))) (= 1 ~systemActive~0) (or .cse5 (= ~methaneLevelCritical~0 0)))) [2024-11-22 02:07:05,485 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-22 02:07:05,508 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 02:07:05 BoogieIcfgContainer [2024-11-22 02:07:05,508 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-22 02:07:05,509 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-22 02:07:05,509 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-22 02:07:05,509 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-22 02:07:05,510 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:06:38" (3/4) ... [2024-11-22 02:07:05,512 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-22 02:07:05,519 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2024-11-22 02:07:05,519 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2024-11-22 02:07:05,519 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2024-11-22 02:07:05,519 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2024-11-22 02:07:05,520 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2024-11-22 02:07:05,520 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__methaneQuery [2024-11-22 02:07:05,520 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isPumpRunning [2024-11-22 02:07:05,520 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2024-11-22 02:07:05,530 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2024-11-22 02:07:05,531 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-11-22 02:07:05,531 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-22 02:07:05,532 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-22 02:07:05,532 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-22 02:07:05,659 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-22 02:07:05,660 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-22 02:07:05,660 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-22 02:07:05,661 INFO L158 Benchmark]: Toolchain (without parser) took 28314.27ms. Allocated memory was 172.0MB in the beginning and 465.6MB in the end (delta: 293.6MB). Free memory was 140.7MB in the beginning and 361.2MB in the end (delta: -220.5MB). Peak memory consumption was 72.8MB. Max. memory is 16.1GB. [2024-11-22 02:07:05,661 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 172.0MB. Free memory was 137.3MB in the beginning and 137.1MB in the end (delta: 176.2kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-22 02:07:05,662 INFO L158 Benchmark]: CACSL2BoogieTranslator took 530.38ms. Allocated memory is still 172.0MB. Free memory was 140.7MB in the beginning and 119.4MB in the end (delta: 21.3MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-11-22 02:07:05,662 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.92ms. Allocated memory is still 172.0MB. Free memory was 119.4MB in the beginning and 117.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-22 02:07:05,663 INFO L158 Benchmark]: Boogie Preprocessor took 47.27ms. Allocated memory is still 172.0MB. Free memory was 117.3MB in the beginning and 114.4MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-22 02:07:05,663 INFO L158 Benchmark]: RCFGBuilder took 584.01ms. Allocated memory is still 172.0MB. Free memory was 114.4MB in the beginning and 128.0MB in the end (delta: -13.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-22 02:07:05,663 INFO L158 Benchmark]: TraceAbstraction took 26941.92ms. Allocated memory was 172.0MB in the beginning and 465.6MB in the end (delta: 293.6MB). Free memory was 128.0MB in the beginning and 369.6MB in the end (delta: -241.6MB). Peak memory consumption was 275.8MB. Max. memory is 16.1GB. [2024-11-22 02:07:05,664 INFO L158 Benchmark]: Witness Printer took 151.21ms. Allocated memory is still 465.6MB. Free memory was 369.6MB in the beginning and 361.2MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-22 02:07:05,666 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 172.0MB. Free memory was 137.3MB in the beginning and 137.1MB in the end (delta: 176.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 530.38ms. Allocated memory is still 172.0MB. Free memory was 140.7MB in the beginning and 119.4MB in the end (delta: 21.3MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.92ms. Allocated memory is still 172.0MB. Free memory was 119.4MB in the beginning and 117.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 47.27ms. Allocated memory is still 172.0MB. Free memory was 117.3MB in the beginning and 114.4MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 584.01ms. Allocated memory is still 172.0MB. Free memory was 114.4MB in the beginning and 128.0MB in the end (delta: -13.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 26941.92ms. Allocated memory was 172.0MB in the beginning and 465.6MB in the end (delta: 293.6MB). Free memory was 128.0MB in the beginning and 369.6MB in the end (delta: -241.6MB). Peak memory consumption was 275.8MB. Max. memory is 16.1GB. * Witness Printer took 151.21ms. Allocated memory is still 465.6MB. Free memory was 369.6MB in the beginning and 361.2MB 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,"Environment.i","") [49] - GenericResultAtLocation [Line: 150]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [150] - GenericResultAtLocation [Line: 159]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [159] - GenericResultAtLocation [Line: 525]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [525] - GenericResultAtLocation [Line: 575]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [575] - GenericResultAtLocation [Line: 777]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [777] - GenericResultAtLocation [Line: 843]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [843] - GenericResultAtLocation [Line: 881]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [881] - 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 - 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: 155]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 98 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 15.8s, OverallIterations: 15, TraceHistogramMax: 9, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 5.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3979 SdHoareTripleChecker+Valid, 3.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3943 mSDsluCounter, 8888 SdHoareTripleChecker+Invalid, 3.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6995 mSDsCounter, 1235 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5482 IncrementalHoareTripleChecker+Invalid, 6717 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1235 mSolverCounterUnsat, 1893 mSDtfsCounter, 5482 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2215 GetRequests, 1953 SyntacticMatches, 25 SemanticMatches, 237 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1583 ImplicationChecksByTransitivity, 2.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1394occurred in iteration=14, InterpolantAutomatonStates: 160, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 15 MinimizatonAttempts, 502 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 6.9s InterpolantComputationTime, 2607 NumberOfCodeBlocks, 2607 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 3560 ConstructedInterpolants, 0 QuantifiedInterpolants, 8390 SizeOfPredicates, 5 NumberOfNonLiveVariables, 2813 ConjunctsInSsa, 79 ConjunctsInUnsatCore, 25 InterpolantComputations, 10 PerfectInterpolantSequences, 3203/3934 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: 789]: Loop Invariant Derived loop invariant: (((((((((pumpRunning == 0) && (1 == systemActive)) && (splverifierCounter == 0)) && (waterLevel == 0)) || ((((((switchedOnBeforeTS != 0) && (methaneLevelCritical == 0)) && (1 == systemActive)) && (splverifierCounter == 0)) && (waterLevel == 0)) && (pumpRunning == 1))) || (((((2 == waterLevel) && (methaneLevelCritical == 0)) && (1 == systemActive)) && (splverifierCounter == 0)) && (pumpRunning == 1))) || ((((pumpRunning == 0) && (1 == systemActive)) && (splverifierCounter == 0)) && (waterLevel == 1))) || ((((pumpRunning == 0) && (2 == waterLevel)) && (1 == systemActive)) && (splverifierCounter == 0))) || ((((((methaneLevelCritical == 0) && (1 == systemActive)) && (splverifierCounter == 0)) && (waterLevel == 1)) && (1 <= switchedOnBeforeTS)) && (pumpRunning == 1))) - InvariantResult [Line: 788]: Location Invariant Derived location invariant: 0 - InvariantResult [Line: 893]: Loop Invariant Derived loop invariant: 0 - ProcedureContractResult [Line: 610]: Procedure Contract for processEnvironment__wrappee__base Derived contract for procedure processEnvironment__wrappee__base. Requires: (((((((pumpRunning == 0) && (1 == systemActive)) && (waterLevel == 1)) || (((((methaneLevelCritical == 0) && (1 == systemActive)) && (1 <= switchedOnBeforeTS)) && (waterLevel == 0)) && (pumpRunning == 1))) || (((((methaneLevelCritical == 0) && (1 == systemActive)) && (waterLevel == 1)) && (1 <= switchedOnBeforeTS)) && (pumpRunning == 1))) || (((pumpRunning == 0) && (1 == systemActive)) && (waterLevel == 0))) || (((pumpRunning == 0) && (2 == waterLevel)) && (1 == systemActive))) Ensures: ((((((((pumpRunning == 0) && (1 == systemActive)) && (waterLevel == 1)) || (((((methaneLevelCritical == 0) && (1 == systemActive)) && (1 <= switchedOnBeforeTS)) && (waterLevel == 0)) && (pumpRunning == 1))) || (((((methaneLevelCritical == 0) && (1 == systemActive)) && (waterLevel == 1)) && (1 <= switchedOnBeforeTS)) && (pumpRunning == 1))) || (((pumpRunning == 0) && (1 == systemActive)) && (waterLevel == 0))) || (((pumpRunning == 0) && (2 == waterLevel)) && (1 == systemActive))) && (((((((waterLevel == \old(waterLevel)) && (methaneLevelCritical == \old(methaneLevelCritical))) && (head == \old(head))) && (switchedOnBeforeTS == \old(switchedOnBeforeTS))) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive))) && (cleanupTimeShifts == \old(cleanupTimeShifts)))) - ProcedureContractResult [Line: 83]: Procedure Contract for changeMethaneLevel Derived contract for procedure changeMethaneLevel. Requires: ((((((((waterLevel == 1) && (pumpRunning == 1)) || ((pumpRunning == 0) && (waterLevel == 0))) || ((pumpRunning == 0) && (2 == waterLevel))) || ((pumpRunning == 0) && (waterLevel == 1))) || ((waterLevel == 0) && (pumpRunning == 1))) || ((2 == waterLevel) && (pumpRunning == 1))) && (1 == systemActive)) Ensures: (((((\old(methaneLevelCritical) == 0) || ((pumpRunning == 0) && (methaneLevelCritical == 0))) && ((((((((pumpRunning == 0) && (1 == systemActive)) && (waterLevel == 1)) || (((2 == waterLevel) && (1 == systemActive)) && (pumpRunning == 1))) || (((1 == systemActive) && (waterLevel == 1)) && (pumpRunning == 1))) || (((pumpRunning == 0) && (1 == systemActive)) && (waterLevel == 0))) || (((pumpRunning == 0) && (2 == waterLevel)) && (1 == systemActive))) || (((1 == systemActive) && (waterLevel == 0)) && (pumpRunning == 1)))) && ((\old(methaneLevelCritical) != 0) || (methaneLevelCritical != 0))) && ((((((waterLevel == \old(waterLevel)) && (head == \old(head))) && (switchedOnBeforeTS == \old(switchedOnBeforeTS))) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive))) && (cleanupTimeShifts == \old(cleanupTimeShifts)))) - ProcedureContractResult [Line: 883]: Procedure Contract for cleanup Derived contract for procedure cleanup. Requires: 0 Ensures: (0 && ((((methaneLevelCritical == \old(methaneLevelCritical)) && (head == \old(head))) && (systemActive == \old(systemActive))) && (cleanupTimeShifts == \old(cleanupTimeShifts)))) - ProcedureContractResult [Line: 583]: Procedure Contract for timeShift Derived contract for procedure timeShift. Ensures: (((((((((((((((methaneLevelCritical == 0) || (\old(pumpRunning) != 1)) || (\old(waterLevel) != 0)) || (((pumpRunning == 0) && (1 <= switchedOnBeforeTS)) && (waterLevel == 0))) && (((\old(pumpRunning) != 0) || (\old(waterLevel) != 1)) || ((pumpRunning == 0) && (waterLevel == 1)))) && ((((((((1 == systemActive) && (\old(pumpRunning) == 1)) && (\old(waterLevel) == 2)) || (((\old(waterLevel) == 1) && (1 == systemActive)) && (\old(pumpRunning) == 0))) || (((1 == systemActive) && (\old(pumpRunning) == 1)) && (\old(waterLevel) == 0))) || ((\old(pumpRunning) == 0) && (\old(waterLevel) == 0))) || (((\old(waterLevel) == 1) && (1 == systemActive)) && (\old(pumpRunning) == 1))) || (((1 == systemActive) && (\old(pumpRunning) == 0)) && (\old(waterLevel) == 2)))) && ((((1 < \old(waterLevel)) || (\old(pumpRunning) != 0)) || (\old(waterLevel) == 1)) || (((pumpRunning == 0) && (1 == systemActive)) && (waterLevel == 0)))) && ((((\old(pumpRunning) != 0) || ((pumpRunning == 0) && (2 == waterLevel))) || (\old(waterLevel) != 2)) || ((2 == waterLevel) && (pumpRunning == 1)))) && ((((methaneLevelCritical != 0) || (\old(pumpRunning) != 1)) || (((waterLevel == 1) && (1 <= switchedOnBeforeTS)) && (pumpRunning == 1))) || (\old(waterLevel) != 2))) && ((((\old(pumpRunning) != 0) || (methaneLevelCritical == 0)) || ((pumpRunning == 0) && (2 == waterLevel))) || (\old(waterLevel) != 2))) && ((((((1 <= switchedOnBeforeTS) && (waterLevel == 0)) && (pumpRunning == 1)) || (methaneLevelCritical != 0)) || (\old(pumpRunning) != 1)) || (\old(waterLevel) != 0))) && ((((\old(waterLevel) != 1) || (((1 <= switchedOnBeforeTS) && (waterLevel == 0)) && (pumpRunning == 1))) || (methaneLevelCritical != 0)) || (\old(pumpRunning) != 1))) && ((((methaneLevelCritical == 0) || (\old(pumpRunning) != 1)) || (\old(waterLevel) != 2)) || (((pumpRunning == 0) && (waterLevel == 1)) && (1 <= switchedOnBeforeTS)))) && ((((\old(waterLevel) != 1) || (methaneLevelCritical == 0)) || (\old(pumpRunning) != 1)) || (((pumpRunning == 0) && (1 <= switchedOnBeforeTS)) && (waterLevel == 0)))) && ((((methaneLevelCritical == \old(methaneLevelCritical)) && (head == \old(head))) && (systemActive == \old(systemActive))) && (cleanupTimeShifts == \old(cleanupTimeShifts)))) - ProcedureContractResult [Line: 71]: Procedure Contract for waterRise Derived contract for procedure waterRise. Ensures: ((((((((((((((switchedOnBeforeTS != 0) && (\old(waterLevel) == 1)) && (methaneLevelCritical == 0)) && (1 == systemActive)) && (pumpRunning == 1)) || (((pumpRunning == 0) && (1 == systemActive)) && (\old(waterLevel) == 2))) || ((((methaneLevelCritical == 0) && (1 == systemActive)) && (\old(waterLevel) == 2)) && (pumpRunning == 1))) || (((pumpRunning == 0) && (\old(waterLevel) == 1)) && (1 == systemActive))) || (((pumpRunning == 0) && (1 == systemActive)) && (\old(waterLevel) == 0))) || (((((switchedOnBeforeTS != 0) && (methaneLevelCritical == 0)) && (1 == systemActive)) && (\old(waterLevel) == 0)) && (pumpRunning == 1))) && ((2 == waterLevel) || (\old(waterLevel) != 2))) && ((2 == waterLevel) || (\old(waterLevel) != 1))) && ((\old(waterLevel) != 0) || (waterLevel == 1))) && ((((((methaneLevelCritical == \old(methaneLevelCritical)) && (head == \old(head))) && (switchedOnBeforeTS == \old(switchedOnBeforeTS))) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive))) && (cleanupTimeShifts == \old(cleanupTimeShifts)))) - ProcedureContractResult [Line: 618]: Procedure Contract for processEnvironment__wrappee__methaneQuery Derived contract for procedure processEnvironment__wrappee__methaneQuery. Requires: ((1 == systemActive) && ((pumpRunning == 0) || (methaneLevelCritical == 0))) Ensures: (((((((((\old(pumpRunning) != 0) || (waterLevel != 0)) || ((pumpRunning == 0) && (1 == systemActive))) && (((waterLevel != 1) || (\old(pumpRunning) != 0)) || (pumpRunning == 0))) && ((\old(pumpRunning) != 1) || (pumpRunning == 1))) && ((pumpRunning == 0) || (pumpRunning == 1))) && ((pumpRunning == 0) || (methaneLevelCritical == 0))) && ((((((\old(pumpRunning) == 0) && (waterLevel == 0)) || (((2 == waterLevel) && (1 == systemActive)) && (\old(pumpRunning) == 0))) || ((((1 == systemActive) && (\old(pumpRunning) == 1)) && (waterLevel == 1)) && (1 <= switchedOnBeforeTS))) || (((1 == systemActive) && (\old(pumpRunning) == 0)) && (waterLevel == 1))) || ((((1 == systemActive) && (\old(pumpRunning) == 1)) && (1 <= switchedOnBeforeTS)) && (waterLevel == 0)))) && ((((((waterLevel == \old(waterLevel)) && (methaneLevelCritical == \old(methaneLevelCritical))) && (head == \old(head))) && (switchedOnBeforeTS == \old(switchedOnBeforeTS))) && (systemActive == \old(systemActive))) && (cleanupTimeShifts == \old(cleanupTimeShifts)))) - ProcedureContractResult [Line: 713]: Procedure Contract for isPumpRunning Derived contract for procedure isPumpRunning. Requires: ((((((((pumpRunning == 0) && (1 == systemActive)) && (waterLevel == 1)) || (((2 == waterLevel) && (1 == systemActive)) && (pumpRunning == 1))) || (((1 == systemActive) && (waterLevel == 1)) && (pumpRunning == 1))) || (((pumpRunning == 0) && (1 == systemActive)) && (waterLevel == 0))) || (((pumpRunning == 0) && (2 == waterLevel)) && (1 == systemActive))) || (((1 == systemActive) && (waterLevel == 0)) && (pumpRunning == 1))) Ensures: (((((((((((waterLevel == 1) && (pumpRunning == 1)) || ((pumpRunning == 0) && (waterLevel == 0))) || ((pumpRunning == 0) && (2 == waterLevel))) || ((pumpRunning == 0) && (waterLevel == 1))) || ((waterLevel == 0) && (pumpRunning == 1))) || ((2 == waterLevel) && (pumpRunning == 1))) && ((pumpRunning != 0) || (\result == 0))) && (1 == systemActive)) && ((\result == 1) || (pumpRunning != 1))) && (((((((waterLevel == \old(waterLevel)) && (methaneLevelCritical == \old(methaneLevelCritical))) && (head == \old(head))) && (switchedOnBeforeTS == \old(switchedOnBeforeTS))) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive))) && (cleanupTimeShifts == \old(cleanupTimeShifts)))) - ProcedureContractResult [Line: 702]: Procedure Contract for isMethaneAlarm Derived contract for procedure isMethaneAlarm. Requires: ((((((1 == systemActive) && (waterLevel == 1)) && (1 <= switchedOnBeforeTS)) && (pumpRunning == 1)) || (((pumpRunning == 0) && (2 == waterLevel)) && (1 == systemActive))) || ((((1 == systemActive) && (1 <= switchedOnBeforeTS)) && (waterLevel == 0)) && (pumpRunning == 1))) Ensures: ((((((((1 == systemActive) && (waterLevel == 1)) && (1 <= switchedOnBeforeTS)) && (pumpRunning == 1)) || (((pumpRunning == 0) && (2 == waterLevel)) && (1 == systemActive))) || ((((1 == systemActive) && (1 <= switchedOnBeforeTS)) && (waterLevel == 0)) && (pumpRunning == 1))) && (methaneLevelCritical == \result)) && (((((((waterLevel == \old(waterLevel)) && (methaneLevelCritical == \old(methaneLevelCritical))) && (head == \old(head))) && (switchedOnBeforeTS == \old(switchedOnBeforeTS))) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive))) && (cleanupTimeShifts == \old(cleanupTimeShifts)))) RESULT: Ultimate proved your program to be correct! [2024-11-22 02:07:05,698 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