./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product61.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 61a67961 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 /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product61.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 53b1b58c0a8af862b137647fd316df606e2053e614741221b62b3a107765e608 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 03:09:23,397 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 03:09:23,441 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-14 03:09:23,444 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 03:09:23,444 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 03:09:23,458 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 03:09:23,458 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 03:09:23,459 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 03:09:23,459 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 03:09:23,459 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 03:09:23,460 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 03:09:23,460 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 03:09:23,460 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 03:09:23,461 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 03:09:23,461 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 03:09:23,461 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 03:09:23,462 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 03:09:23,462 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 03:09:23,462 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 03:09:23,462 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 03:09:23,463 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 03:09:23,463 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 03:09:23,463 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 03:09:23,464 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 03:09:23,464 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 03:09:23,464 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 03:09:23,465 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 03:09:23,465 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 03:09:23,465 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 03:09:23,465 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 03:09:23,466 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 03:09:23,466 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 03:09:23,466 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 03:09:23,466 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 03:09:23,466 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 03:09:23,467 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 03:09:23,467 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 03:09:23,467 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 03:09:23,467 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 03:09:23,467 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 03:09:23,468 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 03:09:23,468 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 03:09:23,468 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 53b1b58c0a8af862b137647fd316df606e2053e614741221b62b3a107765e608 [2024-10-14 03:09:23,691 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 03:09:23,716 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 03:09:23,720 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 03:09:23,722 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 03:09:23,722 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 03:09:23,724 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product61.cil.c [2024-10-14 03:09:25,151 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 03:09:25,440 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 03:09:25,441 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product61.cil.c [2024-10-14 03:09:25,460 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7a3053a45/070437cdd0274525bb1017ccdef20e22/FLAG130eda82f [2024-10-14 03:09:25,475 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7a3053a45/070437cdd0274525bb1017ccdef20e22 [2024-10-14 03:09:25,478 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 03:09:25,479 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 03:09:25,489 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 03:09:25,489 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 03:09:25,494 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 03:09:25,497 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 03:09:25" (1/1) ... [2024-10-14 03:09:25,502 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17360f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:09:25, skipping insertion in model container [2024-10-14 03:09:25,503 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 03:09:25" (1/1) ... [2024-10-14 03:09:25,572 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 03:09:25,718 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product61.cil.c[7381,7394] [2024-10-14 03:09:25,758 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 03:09:25,768 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 03:09:25,778 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [49] [2024-10-14 03:09:25,779 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [118] [2024-10-14 03:09:25,780 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [368] [2024-10-14 03:09:25,780 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [472] [2024-10-14 03:09:25,780 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [481] [2024-10-14 03:09:25,780 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [580] [2024-10-14 03:09:25,780 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [614] [2024-10-14 03:09:25,780 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [649] [2024-10-14 03:09:25,793 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product61.cil.c[7381,7394] [2024-10-14 03:09:25,822 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 03:09:25,837 INFO L204 MainTranslator]: Completed translation [2024-10-14 03:09:25,838 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:09:25 WrapperNode [2024-10-14 03:09:25,838 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 03:09:25,839 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 03:09:25,839 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 03:09:25,839 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 03:09:25,844 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:09:25" (1/1) ... [2024-10-14 03:09:25,853 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:09:25" (1/1) ... [2024-10-14 03:09:25,870 INFO L138 Inliner]: procedures = 57, calls = 105, calls flagged for inlining = 23, calls inlined = 20, statements flattened = 227 [2024-10-14 03:09:25,870 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 03:09:25,871 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 03:09:25,871 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 03:09:25,871 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 03:09:25,898 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:09:25" (1/1) ... [2024-10-14 03:09:25,898 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:09:25" (1/1) ... [2024-10-14 03:09:25,900 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:09:25" (1/1) ... [2024-10-14 03:09:25,916 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-14 03:09:25,917 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:09:25" (1/1) ... [2024-10-14 03:09:25,920 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:09:25" (1/1) ... [2024-10-14 03:09:25,926 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:09:25" (1/1) ... [2024-10-14 03:09:25,933 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:09:25" (1/1) ... [2024-10-14 03:09:25,934 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:09:25" (1/1) ... [2024-10-14 03:09:25,939 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:09:25" (1/1) ... [2024-10-14 03:09:25,940 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 03:09:25,941 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 03:09:25,941 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 03:09:25,941 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 03:09:25,942 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:09:25" (1/1) ... [2024-10-14 03:09:25,948 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 03:09:25,977 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 03:09:25,994 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) [2024-10-14 03:09:25,998 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 [2024-10-14 03:09:26,030 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 03:09:26,030 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2024-10-14 03:09:26,030 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2024-10-14 03:09:26,030 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2024-10-14 03:09:26,030 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2024-10-14 03:09:26,031 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-10-14 03:09:26,031 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-10-14 03:09:26,031 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-10-14 03:09:26,031 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-10-14 03:09:26,031 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2024-10-14 03:09:26,031 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2024-10-14 03:09:26,031 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2024-10-14 03:09:26,031 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2024-10-14 03:09:26,031 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2024-10-14 03:09:26,032 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2024-10-14 03:09:26,032 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2024-10-14 03:09:26,032 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2024-10-14 03:09:26,032 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2024-10-14 03:09:26,032 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2024-10-14 03:09:26,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-14 03:09:26,032 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2024-10-14 03:09:26,032 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2024-10-14 03:09:26,033 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 03:09:26,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 03:09:26,091 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 03:09:26,093 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 03:09:26,312 INFO L? ?]: Removed 54 outVars from TransFormulas that were not future-live. [2024-10-14 03:09:26,312 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 03:09:26,353 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 03:09:26,353 INFO L314 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-14 03:09:26,354 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 03:09:26 BoogieIcfgContainer [2024-10-14 03:09:26,354 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 03:09:26,355 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 03:09:26,355 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 03:09:26,358 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 03:09:26,358 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 03:09:25" (1/3) ... [2024-10-14 03:09:26,358 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44ddad1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 03:09:26, skipping insertion in model container [2024-10-14 03:09:26,358 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:09:25" (2/3) ... [2024-10-14 03:09:26,359 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44ddad1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 03:09:26, skipping insertion in model container [2024-10-14 03:09:26,359 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 03:09:26" (3/3) ... [2024-10-14 03:09:26,360 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product61.cil.c [2024-10-14 03:09:26,372 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 03:09:26,372 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-14 03:09:26,445 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 03:09:26,452 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;@161e5985, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 03:09:26,453 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-14 03:09:26,462 INFO L276 IsEmpty]: Start isEmpty. Operand has 89 states, 59 states have (on average 1.5084745762711864) internal successors, (89), 69 states have internal predecessors, (89), 18 states have call successors, (18), 10 states have call predecessors, (18), 10 states have return successors, (18), 13 states have call predecessors, (18), 18 states have call successors, (18) [2024-10-14 03:09:26,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-10-14 03:09:26,476 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:09:26,477 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:09:26,478 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:09:26,482 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:09:26,483 INFO L85 PathProgramCache]: Analyzing trace with hash -1735961070, now seen corresponding path program 1 times [2024-10-14 03:09:26,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:09:26,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524852671] [2024-10-14 03:09:26,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:09:26,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:09:26,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:09:26,643 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-14 03:09:26,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:09:26,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:09:26,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:09:26,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [524852671] [2024-10-14 03:09:26,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [524852671] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:09:26,652 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:09:26,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 03:09:26,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955090410] [2024-10-14 03:09:26,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:09:26,658 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-14 03:09:26,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:09:26,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-14 03:09:26,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-14 03:09:26,678 INFO L87 Difference]: Start difference. First operand has 89 states, 59 states have (on average 1.5084745762711864) internal successors, (89), 69 states have internal predecessors, (89), 18 states have call successors, (18), 10 states have call predecessors, (18), 10 states have return successors, (18), 13 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-14 03:09:26,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:09:26,720 INFO L93 Difference]: Finished difference Result 176 states and 251 transitions. [2024-10-14 03:09:26,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-14 03:09:26,722 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2024-10-14 03:09:26,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:09:26,728 INFO L225 Difference]: With dead ends: 176 [2024-10-14 03:09:26,729 INFO L226 Difference]: Without dead ends: 84 [2024-10-14 03:09:26,732 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-14 03:09:26,740 INFO L432 NwaCegarLoop]: 104 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 03:09:26,741 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 104 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 03:09:26,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2024-10-14 03:09:26,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2024-10-14 03:09:26,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 56 states have (on average 1.4107142857142858) internal successors, (79), 65 states have internal predecessors, (79), 18 states have call successors, (18), 10 states have call predecessors, (18), 9 states have return successors, (17), 12 states have call predecessors, (17), 17 states have call successors, (17) [2024-10-14 03:09:26,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 114 transitions. [2024-10-14 03:09:26,775 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 114 transitions. Word has length 17 [2024-10-14 03:09:26,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:09:26,776 INFO L471 AbstractCegarLoop]: Abstraction has 84 states and 114 transitions. [2024-10-14 03:09:26,776 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-14 03:09:26,776 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 114 transitions. [2024-10-14 03:09:26,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-10-14 03:09:26,777 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:09:26,778 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:09:26,778 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 03:09:26,778 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:09:26,778 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:09:26,779 INFO L85 PathProgramCache]: Analyzing trace with hash 260613743, now seen corresponding path program 1 times [2024-10-14 03:09:26,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:09:26,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975599588] [2024-10-14 03:09:26,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:09:26,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:09:26,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:09:26,862 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-14 03:09:26,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:09:26,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:09:26,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:09:26,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [975599588] [2024-10-14 03:09:26,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [975599588] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:09:26,870 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:09:26,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 03:09:26,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436889488] [2024-10-14 03:09:26,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:09:26,871 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 03:09:26,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:09:26,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 03:09:26,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:09:26,874 INFO L87 Difference]: Start difference. First operand 84 states and 114 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-14 03:09:26,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:09:26,920 INFO L93 Difference]: Finished difference Result 141 states and 191 transitions. [2024-10-14 03:09:26,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 03:09:26,921 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 18 [2024-10-14 03:09:26,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:09:26,922 INFO L225 Difference]: With dead ends: 141 [2024-10-14 03:09:26,922 INFO L226 Difference]: Without dead ends: 76 [2024-10-14 03:09:26,923 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:09:26,924 INFO L432 NwaCegarLoop]: 90 mSDtfsCounter, 11 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 166 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 03:09:26,924 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 166 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 03:09:26,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2024-10-14 03:09:26,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2024-10-14 03:09:26,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 51 states have (on average 1.4313725490196079) internal successors, (73), 60 states have internal predecessors, (73), 15 states have call successors, (15), 9 states have call predecessors, (15), 9 states have return successors, (15), 10 states have call predecessors, (15), 15 states have call successors, (15) [2024-10-14 03:09:26,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 103 transitions. [2024-10-14 03:09:26,933 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 103 transitions. Word has length 18 [2024-10-14 03:09:26,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:09:26,934 INFO L471 AbstractCegarLoop]: Abstraction has 76 states and 103 transitions. [2024-10-14 03:09:26,934 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-14 03:09:26,934 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 103 transitions. [2024-10-14 03:09:26,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-10-14 03:09:26,935 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:09:26,935 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:09:26,936 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-14 03:09:26,936 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:09:26,936 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:09:26,936 INFO L85 PathProgramCache]: Analyzing trace with hash -1473546257, now seen corresponding path program 1 times [2024-10-14 03:09:26,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:09:26,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147757110] [2024-10-14 03:09:26,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:09:26,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:09:26,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:09:27,003 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 03:09:27,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:09:27,006 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:09:27,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:09:27,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147757110] [2024-10-14 03:09:27,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [147757110] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:09:27,007 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:09:27,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 03:09:27,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411180076] [2024-10-14 03:09:27,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:09:27,008 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 03:09:27,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:09:27,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 03:09:27,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:09:27,009 INFO L87 Difference]: Start difference. First operand 76 states and 103 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-14 03:09:27,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:09:27,052 INFO L93 Difference]: Finished difference Result 150 states and 205 transitions. [2024-10-14 03:09:27,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 03:09:27,053 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 21 [2024-10-14 03:09:27,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:09:27,054 INFO L225 Difference]: With dead ends: 150 [2024-10-14 03:09:27,054 INFO L226 Difference]: Without dead ends: 76 [2024-10-14 03:09:27,055 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:09:27,055 INFO L432 NwaCegarLoop]: 88 mSDtfsCounter, 91 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 88 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 [2024-10-14 03:09:27,056 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 88 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 03:09:27,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2024-10-14 03:09:27,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2024-10-14 03:09:27,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 51 states have (on average 1.411764705882353) internal successors, (72), 60 states have internal predecessors, (72), 15 states have call successors, (15), 9 states have call predecessors, (15), 9 states have return successors, (15), 10 states have call predecessors, (15), 15 states have call successors, (15) [2024-10-14 03:09:27,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 102 transitions. [2024-10-14 03:09:27,075 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 102 transitions. Word has length 21 [2024-10-14 03:09:27,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:09:27,076 INFO L471 AbstractCegarLoop]: Abstraction has 76 states and 102 transitions. [2024-10-14 03:09:27,076 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-14 03:09:27,076 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 102 transitions. [2024-10-14 03:09:27,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-10-14 03:09:27,079 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:09:27,079 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:09:27,079 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-14 03:09:27,079 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:09:27,080 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:09:27,080 INFO L85 PathProgramCache]: Analyzing trace with hash 1105962929, now seen corresponding path program 1 times [2024-10-14 03:09:27,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:09:27,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151165198] [2024-10-14 03:09:27,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:09:27,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:09:27,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:09:27,169 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 03:09:27,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:09:27,210 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-14 03:09:27,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:09:27,214 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 03:09:27,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:09:27,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:09:27,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:09:27,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [151165198] [2024-10-14 03:09:27,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [151165198] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:09:27,219 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:09:27,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 03:09:27,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96060988] [2024-10-14 03:09:27,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:09:27,220 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 03:09:27,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:09:27,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 03:09:27,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-14 03:09:27,222 INFO L87 Difference]: Start difference. First operand 76 states and 102 transitions. Second operand has 6 states, 6 states have (on average 4.5) internal successors, (27), 5 states have internal predecessors, (27), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-14 03:09:27,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:09:27,489 INFO L93 Difference]: Finished difference Result 228 states and 307 transitions. [2024-10-14 03:09:27,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 03:09:27,490 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 5 states have internal predecessors, (27), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 34 [2024-10-14 03:09:27,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:09:27,491 INFO L225 Difference]: With dead ends: 228 [2024-10-14 03:09:27,491 INFO L226 Difference]: Without dead ends: 154 [2024-10-14 03:09:27,492 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-10-14 03:09:27,493 INFO L432 NwaCegarLoop]: 69 mSDtfsCounter, 151 mSDsluCounter, 215 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 284 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 03:09:27,494 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [158 Valid, 284 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 213 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 03:09:27,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2024-10-14 03:09:27,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 148. [2024-10-14 03:09:27,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 103 states have (on average 1.3495145631067962) internal successors, (139), 112 states have internal predecessors, (139), 22 states have call successors, (22), 17 states have call predecessors, (22), 22 states have return successors, (33), 24 states have call predecessors, (33), 22 states have call successors, (33) [2024-10-14 03:09:27,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 194 transitions. [2024-10-14 03:09:27,544 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 194 transitions. Word has length 34 [2024-10-14 03:09:27,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:09:27,544 INFO L471 AbstractCegarLoop]: Abstraction has 148 states and 194 transitions. [2024-10-14 03:09:27,544 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 5 states have internal predecessors, (27), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-14 03:09:27,544 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 194 transitions. [2024-10-14 03:09:27,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-10-14 03:09:27,546 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:09:27,546 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:09:27,549 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-14 03:09:27,549 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:09:27,550 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:09:27,550 INFO L85 PathProgramCache]: Analyzing trace with hash -1638769303, now seen corresponding path program 1 times [2024-10-14 03:09:27,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:09:27,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555031625] [2024-10-14 03:09:27,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:09:27,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:09:27,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:09:27,656 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 03:09:27,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:09:27,665 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 03:09:27,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:09:27,668 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 03:09:27,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:09:27,670 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-14 03:09:27,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:09:27,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:09:27,672 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:09:27,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555031625] [2024-10-14 03:09:27,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1555031625] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:09:27,673 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:09:27,673 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 03:09:27,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277439653] [2024-10-14 03:09:27,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:09:27,673 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 03:09:27,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:09:27,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 03:09:27,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 03:09:27,674 INFO L87 Difference]: Start difference. First operand 148 states and 194 transitions. Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-14 03:09:27,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:09:27,869 INFO L93 Difference]: Finished difference Result 382 states and 516 transitions. [2024-10-14 03:09:27,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 03:09:27,870 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 41 [2024-10-14 03:09:27,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:09:27,873 INFO L225 Difference]: With dead ends: 382 [2024-10-14 03:09:27,873 INFO L226 Difference]: Without dead ends: 236 [2024-10-14 03:09:27,874 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-10-14 03:09:27,875 INFO L432 NwaCegarLoop]: 68 mSDtfsCounter, 134 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 03:09:27,875 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 221 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 03:09:27,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2024-10-14 03:09:27,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 234. [2024-10-14 03:09:27,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 164 states have (on average 1.3170731707317074) internal successors, (216), 176 states have internal predecessors, (216), 35 states have call successors, (35), 29 states have call predecessors, (35), 34 states have return successors, (54), 37 states have call predecessors, (54), 35 states have call successors, (54) [2024-10-14 03:09:27,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 305 transitions. [2024-10-14 03:09:27,905 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 305 transitions. Word has length 41 [2024-10-14 03:09:27,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:09:27,906 INFO L471 AbstractCegarLoop]: Abstraction has 234 states and 305 transitions. [2024-10-14 03:09:27,906 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-14 03:09:27,906 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 305 transitions. [2024-10-14 03:09:27,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-10-14 03:09:27,907 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:09:27,907 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:09:27,907 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-14 03:09:27,907 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:09:27,907 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:09:27,908 INFO L85 PathProgramCache]: Analyzing trace with hash -2134046461, now seen corresponding path program 1 times [2024-10-14 03:09:27,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:09:27,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810556329] [2024-10-14 03:09:27,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:09:27,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:09:27,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:09:27,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-14 03:09:27,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:09:27,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-14 03:09:27,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:09:27,958 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 03:09:27,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:09:27,965 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 03:09:27,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:09:27,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-14 03:09:27,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:09:27,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:09:27,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:09:27,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1810556329] [2024-10-14 03:09:27,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1810556329] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:09:27,971 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:09:27,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 03:09:27,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219893197] [2024-10-14 03:09:27,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:09:27,971 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 03:09:27,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:09:27,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 03:09:27,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-14 03:09:27,972 INFO L87 Difference]: Start difference. First operand 234 states and 305 transitions. Second operand has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 03:09:28,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:09:28,356 INFO L93 Difference]: Finished difference Result 586 states and 825 transitions. [2024-10-14 03:09:28,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-14 03:09:28,356 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 45 [2024-10-14 03:09:28,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:09:28,359 INFO L225 Difference]: With dead ends: 586 [2024-10-14 03:09:28,360 INFO L226 Difference]: Without dead ends: 440 [2024-10-14 03:09:28,361 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2024-10-14 03:09:28,363 INFO L432 NwaCegarLoop]: 45 mSDtfsCounter, 299 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 295 mSolverCounterSat, 159 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 303 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 159 IncrementalHoareTripleChecker+Valid, 295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 03:09:28,364 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [303 Valid, 171 Invalid, 454 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [159 Valid, 295 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 03:09:28,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 440 states. [2024-10-14 03:09:28,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 440 to 412. [2024-10-14 03:09:28,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 412 states, 287 states have (on average 1.289198606271777) internal successors, (370), 311 states have internal predecessors, (370), 64 states have call successors, (64), 44 states have call predecessors, (64), 60 states have return successors, (123), 68 states have call predecessors, (123), 64 states have call successors, (123) [2024-10-14 03:09:28,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 557 transitions. [2024-10-14 03:09:28,445 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 557 transitions. Word has length 45 [2024-10-14 03:09:28,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:09:28,446 INFO L471 AbstractCegarLoop]: Abstraction has 412 states and 557 transitions. [2024-10-14 03:09:28,446 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 03:09:28,446 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 557 transitions. [2024-10-14 03:09:28,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-10-14 03:09:28,447 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:09:28,447 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:09:28,447 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-14 03:09:28,448 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:09:28,448 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:09:28,448 INFO L85 PathProgramCache]: Analyzing trace with hash -1915191743, now seen corresponding path program 1 times [2024-10-14 03:09:28,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:09:28,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416048708] [2024-10-14 03:09:28,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:09:28,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:09:28,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:09:28,507 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-14 03:09:28,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:09:28,515 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-14 03:09:28,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:09:28,525 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 03:09:28,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:09:28,555 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 03:09:28,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:09:28,561 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-14 03:09:28,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:09:28,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:09:28,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:09:28,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416048708] [2024-10-14 03:09:28,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [416048708] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:09:28,563 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:09:28,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 03:09:28,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392161087] [2024-10-14 03:09:28,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:09:28,566 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 03:09:28,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:09:28,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 03:09:28,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-14 03:09:28,567 INFO L87 Difference]: Start difference. First operand 412 states and 557 transitions. Second operand has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 03:09:28,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:09:28,932 INFO L93 Difference]: Finished difference Result 764 states and 1052 transitions. [2024-10-14 03:09:28,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 03:09:28,932 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 45 [2024-10-14 03:09:28,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:09:28,934 INFO L225 Difference]: With dead ends: 764 [2024-10-14 03:09:28,934 INFO L226 Difference]: Without dead ends: 436 [2024-10-14 03:09:28,940 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-10-14 03:09:28,940 INFO L432 NwaCegarLoop]: 50 mSDtfsCounter, 129 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 283 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 341 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 03:09:28,941 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 196 Invalid, 341 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 283 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 03:09:28,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 436 states. [2024-10-14 03:09:28,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 436 to 412. [2024-10-14 03:09:28,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 412 states, 287 states have (on average 1.2857142857142858) internal successors, (369), 311 states have internal predecessors, (369), 64 states have call successors, (64), 44 states have call predecessors, (64), 60 states have return successors, (123), 68 states have call predecessors, (123), 64 states have call successors, (123) [2024-10-14 03:09:28,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 556 transitions. [2024-10-14 03:09:28,997 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 556 transitions. Word has length 45 [2024-10-14 03:09:28,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:09:28,997 INFO L471 AbstractCegarLoop]: Abstraction has 412 states and 556 transitions. [2024-10-14 03:09:28,997 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 03:09:28,998 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 556 transitions. [2024-10-14 03:09:28,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-10-14 03:09:29,002 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:09:29,002 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:09:29,003 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-14 03:09:29,003 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:09:29,003 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:09:29,003 INFO L85 PathProgramCache]: Analyzing trace with hash 1562127103, now seen corresponding path program 1 times [2024-10-14 03:09:29,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:09:29,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831986674] [2024-10-14 03:09:29,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:09:29,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:09:29,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:09:29,061 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-14 03:09:29,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:09:29,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-14 03:09:29,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:09:29,079 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 03:09:29,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:09:29,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 03:09:29,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:09:29,112 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-14 03:09:29,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:09:29,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:09:29,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:09:29,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831986674] [2024-10-14 03:09:29,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1831986674] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:09:29,113 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:09:29,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 03:09:29,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130665640] [2024-10-14 03:09:29,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:09:29,114 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 03:09:29,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:09:29,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 03:09:29,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-14 03:09:29,119 INFO L87 Difference]: Start difference. First operand 412 states and 556 transitions. Second operand has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 03:09:29,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:09:29,540 INFO L93 Difference]: Finished difference Result 847 states and 1172 transitions. [2024-10-14 03:09:29,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 03:09:29,540 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 45 [2024-10-14 03:09:29,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:09:29,543 INFO L225 Difference]: With dead ends: 847 [2024-10-14 03:09:29,547 INFO L226 Difference]: Without dead ends: 437 [2024-10-14 03:09:29,549 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-10-14 03:09:29,550 INFO L432 NwaCegarLoop]: 45 mSDtfsCounter, 132 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 283 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 03:09:29,553 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 181 Invalid, 345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 283 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 03:09:29,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 437 states. [2024-10-14 03:09:29,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 437 to 413. [2024-10-14 03:09:29,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 413 states, 290 states have (on average 1.2793103448275862) internal successors, (371), 313 states have internal predecessors, (371), 63 states have call successors, (63), 43 states have call predecessors, (63), 59 states have return successors, (122), 67 states have call predecessors, (122), 63 states have call successors, (122) [2024-10-14 03:09:29,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 556 transitions. [2024-10-14 03:09:29,625 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 556 transitions. Word has length 45 [2024-10-14 03:09:29,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:09:29,625 INFO L471 AbstractCegarLoop]: Abstraction has 413 states and 556 transitions. [2024-10-14 03:09:29,625 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 03:09:29,626 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 556 transitions. [2024-10-14 03:09:29,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-10-14 03:09:29,627 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:09:29,627 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-14 03:09:29,627 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-14 03:09:29,627 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:09:29,627 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:09:29,631 INFO L85 PathProgramCache]: Analyzing trace with hash 460109926, now seen corresponding path program 1 times [2024-10-14 03:09:29,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:09:29,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670032146] [2024-10-14 03:09:29,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:09:29,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:09:29,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:09:29,712 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-14 03:09:29,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:09:29,722 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-14 03:09:29,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:09:29,742 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 03:09:29,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:09:29,758 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 03:09:29,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:09:29,761 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 03:09:29,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:09:29,762 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 03:09:29,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:09:29,769 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-14 03:09:29,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:09:29,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670032146] [2024-10-14 03:09:29,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1670032146] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:09:29,773 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:09:29,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 03:09:29,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115081628] [2024-10-14 03:09:29,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:09:29,774 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 03:09:29,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:09:29,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 03:09:29,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-14 03:09:29,775 INFO L87 Difference]: Start difference. First operand 413 states and 556 transitions. Second operand has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-10-14 03:09:30,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:09:30,245 INFO L93 Difference]: Finished difference Result 808 states and 1087 transitions. [2024-10-14 03:09:30,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-14 03:09:30,246 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 52 [2024-10-14 03:09:30,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:09:30,248 INFO L225 Difference]: With dead ends: 808 [2024-10-14 03:09:30,248 INFO L226 Difference]: Without dead ends: 397 [2024-10-14 03:09:30,253 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-10-14 03:09:30,254 INFO L432 NwaCegarLoop]: 69 mSDtfsCounter, 204 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 330 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 330 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-14 03:09:30,254 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [207 Valid, 227 Invalid, 418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 330 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-14 03:09:30,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397 states. [2024-10-14 03:09:30,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 395. [2024-10-14 03:09:30,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 395 states, 278 states have (on average 1.2410071942446044) internal successors, (345), 299 states have internal predecessors, (345), 59 states have call successors, (59), 43 states have call predecessors, (59), 57 states have return successors, (86), 63 states have call predecessors, (86), 59 states have call successors, (86) [2024-10-14 03:09:30,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 395 states to 395 states and 490 transitions. [2024-10-14 03:09:30,293 INFO L78 Accepts]: Start accepts. Automaton has 395 states and 490 transitions. Word has length 52 [2024-10-14 03:09:30,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:09:30,297 INFO L471 AbstractCegarLoop]: Abstraction has 395 states and 490 transitions. [2024-10-14 03:09:30,297 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-10-14 03:09:30,298 INFO L276 IsEmpty]: Start isEmpty. Operand 395 states and 490 transitions. [2024-10-14 03:09:30,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-10-14 03:09:30,298 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:09:30,298 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-14 03:09:30,299 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-14 03:09:30,299 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:09:30,299 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:09:30,299 INFO L85 PathProgramCache]: Analyzing trace with hash -115226343, now seen corresponding path program 1 times [2024-10-14 03:09:30,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:09:30,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870051133] [2024-10-14 03:09:30,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:09:30,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:09:30,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:09:30,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-14 03:09:30,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:09:30,393 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-14 03:09:30,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:09:30,419 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 03:09:30,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:09:30,497 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 03:09:30,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:09:30,526 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 03:09:30,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:09:30,547 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 03:09:30,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:09:30,549 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-14 03:09:30,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:09:30,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1870051133] [2024-10-14 03:09:30,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1870051133] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 03:09:30,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1776477730] [2024-10-14 03:09:30,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:09:30,554 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 03:09:30,554 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 03:09:30,555 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) [2024-10-14 03:09:30,557 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-14 03:09:30,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:09:30,631 INFO L255 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-10-14 03:09:30,636 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 03:09:30,826 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:09:30,826 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 03:09:30,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1776477730] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:09:30,828 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 03:09:30,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [11] total 16 [2024-10-14 03:09:30,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188727863] [2024-10-14 03:09:30,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:09:30,829 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-14 03:09:30,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:09:30,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-14 03:09:30,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2024-10-14 03:09:30,829 INFO L87 Difference]: Start difference. First operand 395 states and 490 transitions. Second operand has 8 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) [2024-10-14 03:09:30,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:09:30,998 INFO L93 Difference]: Finished difference Result 1165 states and 1470 transitions. [2024-10-14 03:09:30,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-14 03:09:30,999 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) Word has length 52 [2024-10-14 03:09:30,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:09:31,002 INFO L225 Difference]: With dead ends: 1165 [2024-10-14 03:09:31,002 INFO L226 Difference]: Without dead ends: 772 [2024-10-14 03:09:31,003 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2024-10-14 03:09:31,004 INFO L432 NwaCegarLoop]: 91 mSDtfsCounter, 61 mSDsluCounter, 358 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 449 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 03:09:31,004 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 449 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 03:09:31,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 772 states. [2024-10-14 03:09:31,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 772 to 770. [2024-10-14 03:09:31,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 770 states, 541 states have (on average 1.2255083179297597) internal successors, (663), 579 states have internal predecessors, (663), 117 states have call successors, (117), 86 states have call predecessors, (117), 111 states have return successors, (174), 123 states have call predecessors, (174), 117 states have call successors, (174) [2024-10-14 03:09:31,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 770 states to 770 states and 954 transitions. [2024-10-14 03:09:31,038 INFO L78 Accepts]: Start accepts. Automaton has 770 states and 954 transitions. Word has length 52 [2024-10-14 03:09:31,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:09:31,039 INFO L471 AbstractCegarLoop]: Abstraction has 770 states and 954 transitions. [2024-10-14 03:09:31,039 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) [2024-10-14 03:09:31,039 INFO L276 IsEmpty]: Start isEmpty. Operand 770 states and 954 transitions. [2024-10-14 03:09:31,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-10-14 03:09:31,040 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:09:31,040 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-14 03:09:31,054 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-10-14 03:09:31,241 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 [2024-10-14 03:09:31,241 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:09:31,242 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:09:31,242 INFO L85 PathProgramCache]: Analyzing trace with hash 1776931773, now seen corresponding path program 1 times [2024-10-14 03:09:31,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:09:31,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456833869] [2024-10-14 03:09:31,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:09:31,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:09:31,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:09:31,322 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-14 03:09:31,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:09:31,329 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-10-14 03:09:31,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:09:31,345 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 03:09:31,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:09:31,351 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 03:09:31,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:09:31,354 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 03:09:31,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:09:31,356 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 03:09:31,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:09:31,357 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-14 03:09:31,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:09:31,368 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-14 03:09:31,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:09:31,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1456833869] [2024-10-14 03:09:31,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1456833869] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:09:31,368 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:09:31,368 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-14 03:09:31,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154933818] [2024-10-14 03:09:31,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:09:31,369 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-14 03:09:31,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:09:31,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-14 03:09:31,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2024-10-14 03:09:31,370 INFO L87 Difference]: Start difference. First operand 770 states and 954 transitions. Second operand has 12 states, 11 states have (on average 3.727272727272727) internal successors, (41), 8 states have internal predecessors, (41), 4 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 5 states have call predecessors, (7), 3 states have call successors, (7) [2024-10-14 03:09:32,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:09:32,228 INFO L93 Difference]: Finished difference Result 1522 states and 1902 transitions. [2024-10-14 03:09:32,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-10-14 03:09:32,228 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.727272727272727) internal successors, (41), 8 states have internal predecessors, (41), 4 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 5 states have call predecessors, (7), 3 states have call successors, (7) Word has length 56 [2024-10-14 03:09:32,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:09:32,232 INFO L225 Difference]: With dead ends: 1522 [2024-10-14 03:09:32,232 INFO L226 Difference]: Without dead ends: 754 [2024-10-14 03:09:32,234 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 201 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=285, Invalid=771, Unknown=0, NotChecked=0, Total=1056 [2024-10-14 03:09:32,234 INFO L432 NwaCegarLoop]: 33 mSDtfsCounter, 476 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 1171 mSolverCounterSat, 233 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 479 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 1404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 233 IncrementalHoareTripleChecker+Valid, 1171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-14 03:09:32,234 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [479 Valid, 205 Invalid, 1404 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [233 Valid, 1171 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-14 03:09:32,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 754 states. [2024-10-14 03:09:32,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 754 to 754. [2024-10-14 03:09:32,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 754 states, 525 states have (on average 1.1866666666666668) internal successors, (623), 563 states have internal predecessors, (623), 117 states have call successors, (117), 86 states have call predecessors, (117), 111 states have return successors, (168), 123 states have call predecessors, (168), 117 states have call successors, (168) [2024-10-14 03:09:32,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 754 states to 754 states and 908 transitions. [2024-10-14 03:09:32,272 INFO L78 Accepts]: Start accepts. Automaton has 754 states and 908 transitions. Word has length 56 [2024-10-14 03:09:32,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:09:32,272 INFO L471 AbstractCegarLoop]: Abstraction has 754 states and 908 transitions. [2024-10-14 03:09:32,272 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.727272727272727) internal successors, (41), 8 states have internal predecessors, (41), 4 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 5 states have call predecessors, (7), 3 states have call successors, (7) [2024-10-14 03:09:32,272 INFO L276 IsEmpty]: Start isEmpty. Operand 754 states and 908 transitions. [2024-10-14 03:09:32,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-10-14 03:09:32,275 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:09:32,275 INFO L215 NwaCegarLoop]: trace histogram [4, 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] [2024-10-14 03:09:32,275 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-14 03:09:32,275 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:09:32,275 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:09:32,276 INFO L85 PathProgramCache]: Analyzing trace with hash -1762287868, now seen corresponding path program 1 times [2024-10-14 03:09:32,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:09:32,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896221089] [2024-10-14 03:09:32,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:09:32,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:09:32,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:09:32,440 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-14 03:09:32,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:09:32,457 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 03:09:32,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:09:32,528 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-14 03:09:32,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:09:32,559 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 03:09:32,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:09:32,637 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 03:09:32,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:09:32,662 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 03:09:32,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:09:32,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-10-14 03:09:32,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:09:32,678 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-14 03:09:32,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:09:32,680 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 03:09:32,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:09:32,681 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-14 03:09:32,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:09:32,683 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-14 03:09:32,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:09:32,684 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 2 proven. 15 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-10-14 03:09:32,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:09:32,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [896221089] [2024-10-14 03:09:32,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [896221089] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 03:09:32,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1794170865] [2024-10-14 03:09:32,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:09:32,685 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 03:09:32,685 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 03:09:32,686 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) [2024-10-14 03:09:32,696 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-14 03:09:32,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:09:32,751 INFO L255 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-10-14 03:09:32,753 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 03:09:32,844 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 12 proven. 11 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-10-14 03:09:32,844 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 03:09:33,053 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 8 proven. 3 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-10-14 03:09:33,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1794170865] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 03:09:33,054 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 03:09:33,054 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 7, 8] total 22 [2024-10-14 03:09:33,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684334306] [2024-10-14 03:09:33,054 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 03:09:33,054 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-10-14 03:09:33,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:09:33,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-10-14 03:09:33,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=389, Unknown=0, NotChecked=0, Total=462 [2024-10-14 03:09:33,055 INFO L87 Difference]: Start difference. First operand 754 states and 908 transitions. Second operand has 22 states, 20 states have (on average 4.65) internal successors, (93), 15 states have internal predecessors, (93), 7 states have call successors, (25), 9 states have call predecessors, (25), 11 states have return successors, (25), 9 states have call predecessors, (25), 7 states have call successors, (25) [2024-10-14 03:09:34,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:09:34,681 INFO L93 Difference]: Finished difference Result 1573 states and 1958 transitions. [2024-10-14 03:09:34,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2024-10-14 03:09:34,681 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 20 states have (on average 4.65) internal successors, (93), 15 states have internal predecessors, (93), 7 states have call successors, (25), 9 states have call predecessors, (25), 11 states have return successors, (25), 9 states have call predecessors, (25), 7 states have call successors, (25) Word has length 86 [2024-10-14 03:09:34,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:09:34,683 INFO L225 Difference]: With dead ends: 1573 [2024-10-14 03:09:34,683 INFO L226 Difference]: Without dead ends: 0 [2024-10-14 03:09:34,687 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 284 GetRequests, 195 SyntacticMatches, 6 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2131 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=1556, Invalid=5584, Unknown=0, NotChecked=0, Total=7140 [2024-10-14 03:09:34,688 INFO L432 NwaCegarLoop]: 36 mSDtfsCounter, 1511 mSDsluCounter, 409 mSDsCounter, 0 mSdLazyCounter, 1127 mSolverCounterSat, 740 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1514 SdHoareTripleChecker+Valid, 445 SdHoareTripleChecker+Invalid, 1867 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 740 IncrementalHoareTripleChecker+Valid, 1127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-14 03:09:34,688 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1514 Valid, 445 Invalid, 1867 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [740 Valid, 1127 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-14 03:09:34,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-10-14 03:09:34,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-10-14 03:09:34,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:09:34,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-10-14 03:09:34,689 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 86 [2024-10-14 03:09:34,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:09:34,690 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-14 03:09:34,690 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 20 states have (on average 4.65) internal successors, (93), 15 states have internal predecessors, (93), 7 states have call successors, (25), 9 states have call predecessors, (25), 11 states have return successors, (25), 9 states have call predecessors, (25), 7 states have call successors, (25) [2024-10-14 03:09:34,690 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-10-14 03:09:34,690 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-10-14 03:09:34,692 INFO L782 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-10-14 03:09:34,706 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-14 03:09:34,893 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-10-14 03:09:34,896 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:09:34,897 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-10-14 03:09:38,554 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-14 03:09:38,568 WARN L155 FloydHoareUtils]: Requires clause for deactivatePump contained old-variable. Original clause: (and (let ((.cse0 (<= ~waterLevel~0 1)) (.cse1 (= 1 ~systemActive~0)) (.cse2 (= |old(~pumpRunning~0)| 1))) (or (and .cse0 .cse1 .cse2 (= ~methaneLevelCritical~0 1)) (and (= ~methaneLevelCritical~0 0) .cse0 .cse1 .cse2))) (= ~pumpRunning~0 1)) Eliminated clause: (and (let ((.cse0 (<= ~waterLevel~0 1)) (.cse1 (= 1 ~systemActive~0))) (or (and .cse0 .cse1 (= ~methaneLevelCritical~0 1)) (and (= ~methaneLevelCritical~0 0) .cse0 .cse1))) (= ~pumpRunning~0 1)) [2024-10-14 03:09:38,580 WARN L155 FloydHoareUtils]: Requires clause for changeMethaneLevel contained old-variable. Original clause: (let ((.cse4 (= |old(~methaneLevelCritical~0)| 0)) (.cse1 (= |old(~methaneLevelCritical~0)| 1))) (and (let ((.cse0 (= ~pumpRunning~0 0)) (.cse2 (= 1 ~systemActive~0)) (.cse3 (<= ~waterLevel~0 2)) (.cse5 (= ~pumpRunning~0 1))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse2 .cse3 .cse5) (and .cse0 .cse4 .cse2 .cse3) (and .cse1 .cse2 .cse3 .cse5))) (or (not .cse4) (= ~methaneLevelCritical~0 0)) (or (= ~methaneLevelCritical~0 1) (not .cse1)))) Eliminated clause: (exists ((|old(~methaneLevelCritical~0)| Int)) (let ((.cse4 (= |old(~methaneLevelCritical~0)| 0)) (.cse1 (= |old(~methaneLevelCritical~0)| 1))) (and (let ((.cse0 (= ~pumpRunning~0 0)) (.cse2 (= 1 ~systemActive~0)) (.cse3 (<= ~waterLevel~0 2)) (.cse5 (= ~pumpRunning~0 1))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse2 .cse3 .cse5) (and .cse0 .cse4 .cse2 .cse3) (and .cse1 .cse2 .cse3 .cse5))) (or (not .cse4) (= ~methaneLevelCritical~0 0)) (or (= ~methaneLevelCritical~0 1) (not .cse1))))) [2024-10-14 03:09:38,584 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-10-14 03:09:38,597 WARN L155 FloydHoareUtils]: Requires clause for timeShift contained old-variable. Original clause: (let ((.cse1 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse0 (= |old(~pumpRunning~0)| 0)) (.cse2 (= |old(~pumpRunning~0)| 1))) (and (or (not .cse0) (and (= ~pumpRunning~0 0) .cse1)) (or (not .cse2) (and .cse1 (= ~pumpRunning~0 1))) (let ((.cse3 (= ~methaneLevelCritical~0 0)) (.cse4 (= 1 ~systemActive~0)) (.cse6 (= ~methaneLevelCritical~0 1)) (.cse5 (<= |old(~waterLevel~0)| 2))) (or (and .cse3 .cse4 .cse0 .cse5) (and .cse4 .cse0 .cse6 .cse5) (and .cse3 .cse4 .cse2 .cse5) (and .cse4 .cse2 .cse6 .cse5))))) Eliminated clause: (exists ((|old(~pumpRunning~0)| Int) (|old(~waterLevel~0)| Int)) (let ((.cse1 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse0 (= |old(~pumpRunning~0)| 0)) (.cse2 (= |old(~pumpRunning~0)| 1))) (and (or (not .cse0) (and (= ~pumpRunning~0 0) .cse1)) (or (not .cse2) (and .cse1 (= ~pumpRunning~0 1))) (let ((.cse3 (= ~methaneLevelCritical~0 0)) (.cse4 (= 1 ~systemActive~0)) (.cse6 (= ~methaneLevelCritical~0 1)) (.cse5 (<= |old(~waterLevel~0)| 2))) (or (and .cse3 .cse4 .cse0 .cse5) (and .cse4 .cse0 .cse6 .cse5) (and .cse3 .cse4 .cse2 .cse5) (and .cse4 .cse2 .cse6 .cse5)))))) [2024-10-14 03:09:38,602 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-10-14 03:09:38,607 WARN L155 FloydHoareUtils]: Requires clause for processEnvironment__wrappee__highWaterSensor contained old-variable. Original clause: (let ((.cse1 (= |old(~pumpRunning~0)| 1)) (.cse0 (= |old(~pumpRunning~0)| 0))) (and (or (not .cse0) (= ~pumpRunning~0 0)) (or (not .cse1) (= ~pumpRunning~0 1)) (let ((.cse4 (= ~methaneLevelCritical~0 1)) (.cse2 (<= ~waterLevel~0 1)) (.cse6 (= ~methaneLevelCritical~0 0)) (.cse3 (= 1 ~systemActive~0)) (.cse5 (<= ~waterLevel~0 2))) (or (and .cse2 .cse3 .cse1 .cse4) (and .cse3 .cse0 .cse4 .cse5) (and .cse6 .cse2 .cse3 .cse1) (and .cse6 .cse3 .cse0 .cse5))))) Eliminated clause: (exists ((|old(~pumpRunning~0)| Int)) (let ((.cse1 (= |old(~pumpRunning~0)| 1)) (.cse0 (= |old(~pumpRunning~0)| 0))) (and (or (not .cse0) (= ~pumpRunning~0 0)) (or (not .cse1) (= ~pumpRunning~0 1)) (let ((.cse4 (= ~methaneLevelCritical~0 1)) (.cse2 (<= ~waterLevel~0 1)) (.cse6 (= ~methaneLevelCritical~0 0)) (.cse3 (= 1 ~systemActive~0)) (.cse5 (<= ~waterLevel~0 2))) (or (and .cse2 .cse3 .cse1 .cse4) (and .cse3 .cse0 .cse4 .cse5) (and .cse6 .cse2 .cse3 .cse1) (and .cse6 .cse3 .cse0 .cse5)))))) [2024-10-14 03:09:38,611 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-10-14 03:09:38,615 WARN L155 FloydHoareUtils]: Requires clause for waterRise contained old-variable. Original clause: (let ((.cse1 (= ~pumpRunning~0 1)) (.cse2 (= ~methaneLevelCritical~0 1)) (.cse0 (= 1 ~systemActive~0))) (and (or (and (<= ~waterLevel~0 1) .cse0) (not .cse1) (not .cse2)) (= |old(~waterLevel~0)| ~waterLevel~0) (let ((.cse4 (<= |old(~waterLevel~0)| 2)) (.cse5 (= ~pumpRunning~0 0)) (.cse3 (= ~methaneLevelCritical~0 0))) (or (and .cse2 .cse1) (and .cse3 .cse0 .cse4 .cse1) (and .cse5 .cse0 .cse2 .cse4) (and .cse5 .cse3 .cse0 (<= |old(~waterLevel~0)| 1)))))) Eliminated clause: (let ((.cse6 (<= ~waterLevel~0 1)) (.cse3 (= 1 ~systemActive~0)) (.cse1 (= ~pumpRunning~0 1)) (.cse0 (= ~methaneLevelCritical~0 1))) (and (let ((.cse4 (<= ~waterLevel~0 2)) (.cse5 (= ~pumpRunning~0 0)) (.cse2 (= ~methaneLevelCritical~0 0))) (or (and .cse0 .cse1) (and .cse2 .cse3 .cse4 .cse1) (and .cse5 .cse3 .cse0 .cse4) (and .cse5 .cse2 .cse6 .cse3))) (or (and .cse6 .cse3) (not .cse1) (not .cse0)))) [2024-10-14 03:09:38,625 WARN L155 FloydHoareUtils]: Requires clause for processEnvironment__wrappee__methaneQuery contained old-variable. Original clause: (let ((.cse1 (= |old(~pumpRunning~0)| 1)) (.cse0 (= |old(~pumpRunning~0)| 0))) (and (or (not .cse0) (= ~pumpRunning~0 0)) (or (not .cse1) (= ~pumpRunning~0 1)) (let ((.cse4 (= ~methaneLevelCritical~0 1)) (.cse2 (<= ~waterLevel~0 1)) (.cse6 (= ~methaneLevelCritical~0 0)) (.cse3 (= 1 ~systemActive~0)) (.cse5 (<= ~waterLevel~0 2))) (or (and .cse2 .cse3 .cse1 .cse4) (and .cse3 .cse0 .cse4 .cse5) (and .cse6 .cse2 .cse3 .cse1) (and .cse6 .cse3 .cse0 .cse5))))) Eliminated clause: (exists ((|old(~pumpRunning~0)| Int)) (let ((.cse1 (= |old(~pumpRunning~0)| 1)) (.cse0 (= |old(~pumpRunning~0)| 0))) (and (or (not .cse0) (= ~pumpRunning~0 0)) (or (not .cse1) (= ~pumpRunning~0 1)) (let ((.cse4 (= ~methaneLevelCritical~0 1)) (.cse2 (<= ~waterLevel~0 1)) (.cse6 (= ~methaneLevelCritical~0 0)) (.cse3 (= 1 ~systemActive~0)) (.cse5 (<= ~waterLevel~0 2))) (or (and .cse2 .cse3 .cse1 .cse4) (and .cse3 .cse0 .cse4 .cse5) (and .cse6 .cse2 .cse3 .cse1) (and .cse6 .cse3 .cse0 .cse5)))))) [2024-10-14 03:09:38,633 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-10-14 03:09:38,646 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 03:09:38 BoogieIcfgContainer [2024-10-14 03:09:38,647 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-14 03:09:38,647 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-14 03:09:38,647 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-14 03:09:38,647 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-14 03:09:38,648 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 03:09:26" (3/4) ... [2024-10-14 03:09:38,650 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-14 03:09:38,654 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2024-10-14 03:09:38,654 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2024-10-14 03:09:38,654 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2024-10-14 03:09:38,654 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2024-10-14 03:09:38,654 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2024-10-14 03:09:38,654 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2024-10-14 03:09:38,655 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2024-10-14 03:09:38,655 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2024-10-14 03:09:38,655 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__methaneQuery [2024-10-14 03:09:38,655 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2024-10-14 03:09:38,664 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 35 nodes and edges [2024-10-14 03:09:38,666 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2024-10-14 03:09:38,666 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-10-14 03:09:38,667 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-14 03:09:38,667 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-14 03:09:38,762 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-14 03:09:38,762 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-14 03:09:38,762 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-14 03:09:38,763 INFO L158 Benchmark]: Toolchain (without parser) took 13284.18ms. Allocated memory was 203.4MB in the beginning and 350.2MB in the end (delta: 146.8MB). Free memory was 135.3MB in the beginning and 217.0MB in the end (delta: -81.7MB). Peak memory consumption was 66.7MB. Max. memory is 16.1GB. [2024-10-14 03:09:38,763 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 113.2MB. Free memory is still 75.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-14 03:09:38,763 INFO L158 Benchmark]: CACSL2BoogieTranslator took 348.94ms. Allocated memory is still 203.4MB. Free memory was 135.1MB in the beginning and 114.4MB in the end (delta: 20.8MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-10-14 03:09:38,763 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.50ms. Allocated memory is still 203.4MB. Free memory was 114.4MB in the beginning and 112.1MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-14 03:09:38,764 INFO L158 Benchmark]: Boogie Preprocessor took 69.81ms. Allocated memory is still 203.4MB. Free memory was 112.1MB in the beginning and 174.3MB in the end (delta: -62.2MB). Peak memory consumption was 7.9MB. Max. memory is 16.1GB. [2024-10-14 03:09:38,764 INFO L158 Benchmark]: RCFGBuilder took 412.90ms. Allocated memory is still 203.4MB. Free memory was 174.3MB in the beginning and 148.2MB in the end (delta: 26.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-10-14 03:09:38,764 INFO L158 Benchmark]: TraceAbstraction took 12291.62ms. Allocated memory was 203.4MB in the beginning and 350.2MB in the end (delta: 146.8MB). Free memory was 148.2MB in the beginning and 225.4MB in the end (delta: -77.2MB). Peak memory consumption was 186.1MB. Max. memory is 16.1GB. [2024-10-14 03:09:38,764 INFO L158 Benchmark]: Witness Printer took 115.33ms. Allocated memory is still 350.2MB. Free memory was 225.4MB in the beginning and 217.0MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-10-14 03:09:38,765 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 113.2MB. Free memory is still 75.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 348.94ms. Allocated memory is still 203.4MB. Free memory was 135.1MB in the beginning and 114.4MB in the end (delta: 20.8MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.50ms. Allocated memory is still 203.4MB. Free memory was 114.4MB in the beginning and 112.1MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 69.81ms. Allocated memory is still 203.4MB. Free memory was 112.1MB in the beginning and 174.3MB in the end (delta: -62.2MB). Peak memory consumption was 7.9MB. Max. memory is 16.1GB. * RCFGBuilder took 412.90ms. Allocated memory is still 203.4MB. Free memory was 174.3MB in the beginning and 148.2MB in the end (delta: 26.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 12291.62ms. Allocated memory was 203.4MB in the beginning and 350.2MB in the end (delta: 146.8MB). Free memory was 148.2MB in the beginning and 225.4MB in the end (delta: -77.2MB). Peak memory consumption was 186.1MB. Max. memory is 16.1GB. * Witness Printer took 115.33ms. Allocated memory is still 350.2MB. Free memory was 225.4MB in the beginning and 217.0MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [49] - GenericResultAtLocation [Line: 118]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [118] - GenericResultAtLocation [Line: 368]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [368] - GenericResultAtLocation [Line: 472]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [472] - GenericResultAtLocation [Line: 481]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [481] - GenericResultAtLocation [Line: 580]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [580] - GenericResultAtLocation [Line: 614]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [614] - GenericResultAtLocation [Line: 649]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [649] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 477]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 11 procedures, 89 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 8.5s, OverallIterations: 12, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 5.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3237 SdHoareTripleChecker+Valid, 3.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3199 mSDsluCounter, 2737 SdHoareTripleChecker+Invalid, 2.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1949 mSDsCounter, 1436 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4169 IncrementalHoareTripleChecker+Invalid, 5605 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1436 mSolverCounterUnsat, 788 mSDtfsCounter, 4169 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 541 GetRequests, 356 SyntacticMatches, 6 SemanticMatches, 179 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2383 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=770occurred in iteration=10, 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: 0.4s AutomataMinimizationTime, 12 MinimizatonAttempts, 88 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 650 NumberOfCodeBlocks, 650 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 721 ConstructedInterpolants, 0 QuantifiedInterpolants, 1559 SizeOfPredicates, 2 NumberOfNonLiveVariables, 508 ConjunctsInSsa, 24 ConjunctsInUnsatCore, 15 InterpolantComputations, 11 PerfectInterpolantSequences, 74/104 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 63]: Location Invariant Derived location invariant: 0 - InvariantResult [Line: 493]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 64]: Loop Invariant Derived loop invariant: ((((((((methaneLevelCritical == 0) && (1 == systemActive)) && (splverifierCounter == 0)) && (waterLevel <= 2)) && (pumpRunning == 1)) || (((((pumpRunning == 0) && (1 == systemActive)) && (methaneLevelCritical == 1)) && (splverifierCounter == 0)) && (waterLevel <= 2))) || (((((waterLevel <= 1) && (1 == systemActive)) && (methaneLevelCritical == 1)) && (splverifierCounter == 0)) && (pumpRunning == 1))) || (((((pumpRunning == 0) && (methaneLevelCritical == 0)) && (waterLevel <= 1)) && (1 == systemActive)) && (splverifierCounter == 0))) - ProcedureContractResult [Line: 266]: Procedure Contract for deactivatePump Derived contract for procedure deactivatePump. Requires: (((((waterLevel <= 1) && (1 == systemActive)) && (methaneLevelCritical == 1)) || (((methaneLevelCritical == 0) && (waterLevel <= 1)) && (1 == systemActive))) && (pumpRunning == 1)) Ensures: ((pumpRunning == 0) && (((((waterLevel <= 1) && (1 == systemActive)) && (\old(pumpRunning) == 1)) && (methaneLevelCritical == 1)) || ((((methaneLevelCritical == 0) && (waterLevel <= 1)) && (1 == systemActive)) && (\old(pumpRunning) == 1)))) - ProcedureContractResult [Line: 156]: Procedure Contract for processEnvironment__wrappee__base Derived contract for procedure processEnvironment__wrappee__base. Requires: (((((((methaneLevelCritical == 0) && (waterLevel <= 1)) && (1 == systemActive)) && (pumpRunning == 1)) || ((((waterLevel <= 1) && (1 == systemActive)) && (methaneLevelCritical == 1)) && (pumpRunning == 1))) || ((((pumpRunning == 0) && (waterLevel <= 1)) && (1 == systemActive)) && (methaneLevelCritical == 1))) || ((((pumpRunning == 0) && (methaneLevelCritical == 0)) && (waterLevel <= 1)) && (1 == systemActive))) Ensures: (((((((methaneLevelCritical == 0) && (waterLevel <= 1)) && (1 == systemActive)) && (pumpRunning == 1)) || ((((waterLevel <= 1) && (1 == systemActive)) && (methaneLevelCritical == 1)) && (pumpRunning == 1))) || ((((pumpRunning == 0) && (waterLevel <= 1)) && (1 == systemActive)) && (methaneLevelCritical == 1))) || ((((pumpRunning == 0) && (methaneLevelCritical == 0)) && (waterLevel <= 1)) && (1 == systemActive))) - ProcedureContractResult [Line: 396]: Procedure Contract for changeMethaneLevel Derived contract for procedure changeMethaneLevel. Ensures: ((((methaneLevelCritical == 0) || (\old(methaneLevelCritical) != 1)) && ((\old(methaneLevelCritical) != 0) || (methaneLevelCritical == 1))) && (((((((pumpRunning == 0) && (\old(methaneLevelCritical) == 1)) && (1 == systemActive)) && (waterLevel <= 2)) || ((((\old(methaneLevelCritical) == 0) && (1 == systemActive)) && (waterLevel <= 2)) && (pumpRunning == 1))) || ((((pumpRunning == 0) && (\old(methaneLevelCritical) == 0)) && (1 == systemActive)) && (waterLevel <= 2))) || ((((\old(methaneLevelCritical) == 1) && (1 == systemActive)) && (waterLevel <= 2)) && (pumpRunning == 1)))) - ProcedureContractResult [Line: 408]: Procedure Contract for isMethaneLevelCritical Derived contract for procedure isMethaneLevelCritical. Requires: (((((((methaneLevelCritical == 0) && (1 == systemActive)) && (waterLevel <= 2)) && (pumpRunning == 1)) || ((((waterLevel <= 1) && (1 == systemActive)) && (methaneLevelCritical == 1)) && (pumpRunning == 1))) || ((((pumpRunning == 0) && (1 == systemActive)) && (methaneLevelCritical == 1)) && (waterLevel <= 2))) || ((((pumpRunning == 0) && (methaneLevelCritical == 0)) && (1 == systemActive)) && (waterLevel <= 2))) Ensures: ((((methaneLevelCritical != 1) || (\result == 1)) && (((((((methaneLevelCritical == 0) && (1 == systemActive)) && (waterLevel <= 2)) && (pumpRunning == 1)) || ((((waterLevel <= 1) && (1 == systemActive)) && (methaneLevelCritical == 1)) && (pumpRunning == 1))) || ((((pumpRunning == 0) && (1 == systemActive)) && (methaneLevelCritical == 1)) && (waterLevel <= 2))) || ((((pumpRunning == 0) && (methaneLevelCritical == 0)) && (1 == systemActive)) && (waterLevel <= 2)))) && ((methaneLevelCritical != 0) || (\result == 0))) - ProcedureContractResult [Line: 483]: Procedure Contract for cleanup Derived contract for procedure cleanup. Requires: 0 Ensures: 0 - ProcedureContractResult [Line: 132]: Procedure Contract for timeShift Derived contract for procedure timeShift. Ensures: ((((((((waterLevel <= 1) && (waterLevel <= \old(waterLevel))) && (pumpRunning == 1)) || (\old(pumpRunning) != 1)) || (((pumpRunning == 0) && (waterLevel <= 1)) && (waterLevel <= \old(waterLevel)))) && ((((((pumpRunning == 0) && (waterLevel <= 1)) && (\old(waterLevel) == waterLevel)) || (\old(pumpRunning) != 0)) || (methaneLevelCritical != 0)) || ((\old(waterLevel) == waterLevel) && (pumpRunning == 1)))) && (((\old(pumpRunning) != 0) || ((pumpRunning == 0) && (\old(waterLevel) == waterLevel))) || (methaneLevelCritical != 1))) && (((((((methaneLevelCritical == 0) && (1 == systemActive)) && (\old(pumpRunning) == 0)) && (\old(waterLevel) <= 2)) || ((((1 == systemActive) && (\old(pumpRunning) == 0)) && (methaneLevelCritical == 1)) && (\old(waterLevel) <= 2))) || ((((methaneLevelCritical == 0) && (1 == systemActive)) && (\old(pumpRunning) == 1)) && (\old(waterLevel) <= 2))) || ((((1 == systemActive) && (\old(pumpRunning) == 1)) && (methaneLevelCritical == 1)) && (\old(waterLevel) <= 2)))) - ProcedureContractResult [Line: 164]: Procedure Contract for processEnvironment__wrappee__highWaterSensor Derived contract for procedure processEnvironment__wrappee__highWaterSensor. Ensures: ((((((\old(pumpRunning) != 0) || (pumpRunning == 0)) || (methaneLevelCritical != 1)) && (((methaneLevelCritical != 0) || ((pumpRunning == 0) && (waterLevel <= 1))) || (pumpRunning == 1))) && ((\old(pumpRunning) != 1) || (pumpRunning == 1))) && (((((((waterLevel <= 1) && (1 == systemActive)) && (\old(pumpRunning) == 1)) && (methaneLevelCritical == 1)) || ((((1 == systemActive) && (\old(pumpRunning) == 0)) && (methaneLevelCritical == 1)) && (waterLevel <= 2))) || ((((methaneLevelCritical == 0) && (waterLevel <= 1)) && (1 == systemActive)) && (\old(pumpRunning) == 1))) || ((((methaneLevelCritical == 0) && (1 == systemActive)) && (\old(pumpRunning) == 0)) && (waterLevel <= 2)))) - ProcedureContractResult [Line: 384]: Procedure Contract for waterRise Derived contract for procedure waterRise. Requires: ((((((methaneLevelCritical == 1) && (pumpRunning == 1)) || ((((methaneLevelCritical == 0) && (1 == systemActive)) && (waterLevel <= 2)) && (pumpRunning == 1))) || ((((pumpRunning == 0) && (1 == systemActive)) && (methaneLevelCritical == 1)) && (waterLevel <= 2))) || ((((pumpRunning == 0) && (methaneLevelCritical == 0)) && (waterLevel <= 1)) && (1 == systemActive))) && ((((waterLevel <= 1) && (1 == systemActive)) || (pumpRunning != 1)) || (methaneLevelCritical != 1))) Ensures: (((((((((methaneLevelCritical == 0) && (1 == systemActive)) && (\old(waterLevel) <= 2)) && (pumpRunning == 1)) || ((((1 == systemActive) && (methaneLevelCritical == 1)) && (\old(waterLevel) <= 1)) && (pumpRunning == 1))) || ((((pumpRunning == 0) && (1 == systemActive)) && (methaneLevelCritical == 1)) && (\old(waterLevel) <= 2))) || ((((pumpRunning == 0) && (methaneLevelCritical == 0)) && (1 == systemActive)) && (\old(waterLevel) <= 1))) && (waterLevel <= ((long long) \old(waterLevel) + 1))) && (waterLevel <= 2)) - ProcedureContractResult [Line: 190]: Procedure Contract for processEnvironment__wrappee__methaneQuery Derived contract for procedure processEnvironment__wrappee__methaneQuery. Ensures: ((((((\old(pumpRunning) != 0) || (pumpRunning == 0)) || (methaneLevelCritical != 1)) && (((methaneLevelCritical != 0) || (waterLevel < 2)) || (pumpRunning == 1))) && (((((((waterLevel <= 1) && (1 == systemActive)) && (\old(pumpRunning) == 1)) && (methaneLevelCritical == 1)) || ((((1 == systemActive) && (\old(pumpRunning) == 0)) && (methaneLevelCritical == 1)) && (waterLevel <= 2))) || ((((methaneLevelCritical == 0) && (waterLevel <= 1)) && (1 == systemActive)) && (\old(pumpRunning) == 1))) || ((((methaneLevelCritical == 0) && (1 == systemActive)) && (\old(pumpRunning) == 0)) && (waterLevel <= 2)))) && ((pumpRunning == 0) || (pumpRunning == 1))) - ProcedureContractResult [Line: 274]: Procedure Contract for isMethaneAlarm Derived contract for procedure isMethaneAlarm. Requires: (((((((methaneLevelCritical == 0) && (waterLevel <= 1)) && (1 == systemActive)) && (pumpRunning == 1)) || ((((waterLevel <= 1) && (1 == systemActive)) && (methaneLevelCritical == 1)) && (pumpRunning == 1))) || ((((pumpRunning == 0) && (1 == systemActive)) && (methaneLevelCritical == 1)) && (waterLevel <= 2))) || ((((pumpRunning == 0) && (methaneLevelCritical == 0)) && (1 == systemActive)) && (waterLevel <= 2))) Ensures: ((((\result == 1) || (methaneLevelCritical != 1)) && (((((((methaneLevelCritical == 0) && (waterLevel <= 1)) && (1 == systemActive)) && (pumpRunning == 1)) || ((((waterLevel <= 1) && (1 == systemActive)) && (methaneLevelCritical == 1)) && (pumpRunning == 1))) || ((((pumpRunning == 0) && (1 == systemActive)) && (methaneLevelCritical == 1)) && (waterLevel <= 2))) || ((((pumpRunning == 0) && (methaneLevelCritical == 0)) && (1 == systemActive)) && (waterLevel <= 2)))) && ((\result == 0) || (methaneLevelCritical != 0))) RESULT: Ultimate proved your program to be correct! [2024-10-14 03:09:38,791 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE