/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product61.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-19 23:40:02,339 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-19 23:40:02,397 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-19 23:40:02,400 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-19 23:40:02,401 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-19 23:40:02,418 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-19 23:40:02,419 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-19 23:40:02,419 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-19 23:40:02,419 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-19 23:40:02,419 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-19 23:40:02,420 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-19 23:40:02,420 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-19 23:40:02,420 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-19 23:40:02,421 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-19 23:40:02,421 INFO L153 SettingsManager]: * Use SBE=true [2023-12-19 23:40:02,421 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-19 23:40:02,421 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-19 23:40:02,422 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-19 23:40:02,422 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-19 23:40:02,422 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-19 23:40:02,422 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-19 23:40:02,425 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-19 23:40:02,426 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-19 23:40:02,426 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-19 23:40:02,428 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-19 23:40:02,428 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-19 23:40:02,429 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-19 23:40:02,429 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-19 23:40:02,430 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-19 23:40:02,430 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-19 23:40:02,431 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-19 23:40:02,431 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-19 23:40:02,431 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-19 23:40:02,431 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-19 23:40:02,431 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-19 23:40:02,431 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-19 23:40:02,431 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-19 23:40:02,431 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-19 23:40:02,432 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-19 23:40:02,432 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-19 23:40:02,432 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-19 23:40:02,432 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-19 23:40:02,432 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-19 23:40:02,432 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-19 23:40:02,626 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-19 23:40:02,647 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-19 23:40:02,649 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-19 23:40:02,650 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-19 23:40:02,650 INFO L274 PluginConnector]: CDTParser initialized [2023-12-19 23:40:02,651 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product61.cil.c [2023-12-19 23:40:03,789 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-19 23:40:04,036 INFO L384 CDTParser]: Found 1 translation units. [2023-12-19 23:40:04,037 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product61.cil.c [2023-12-19 23:40:04,052 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fa96613ed/208f914175cd4601a7b7eb9a6a99627a/FLAGc66031dbe [2023-12-19 23:40:04,063 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fa96613ed/208f914175cd4601a7b7eb9a6a99627a [2023-12-19 23:40:04,065 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-19 23:40:04,066 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-19 23:40:04,068 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-19 23:40:04,068 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-19 23:40:04,071 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-19 23:40:04,072 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 11:40:04" (1/1) ... [2023-12-19 23:40:04,073 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21aa3b6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:40:04, skipping insertion in model container [2023-12-19 23:40:04,073 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 11:40:04" (1/1) ... [2023-12-19 23:40:04,111 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-19 23:40:04,230 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product61.cil.c[1605,1618] [2023-12-19 23:40:04,325 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-19 23:40:04,336 INFO L202 MainTranslator]: Completed pre-run [2023-12-19 23:40:04,343 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [49] [2023-12-19 23:40:04,345 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [58] [2023-12-19 23:40:04,345 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [96] [2023-12-19 23:40:04,345 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [347] [2023-12-19 23:40:04,345 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [415] [2023-12-19 23:40:04,345 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification4_spec.i","") [519] [2023-12-19 23:40:04,345 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [545] [2023-12-19 23:40:04,346 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [911] [2023-12-19 23:40:04,360 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product61.cil.c[1605,1618] [2023-12-19 23:40:04,414 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-19 23:40:04,434 INFO L206 MainTranslator]: Completed translation [2023-12-19 23:40:04,436 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:40:04 WrapperNode [2023-12-19 23:40:04,437 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-19 23:40:04,437 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-19 23:40:04,438 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-19 23:40:04,438 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-19 23:40:04,443 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:40:04" (1/1) ... [2023-12-19 23:40:04,458 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:40:04" (1/1) ... [2023-12-19 23:40:04,489 INFO L138 Inliner]: procedures = 57, calls = 104, calls flagged for inlining = 24, calls inlined = 21, statements flattened = 236 [2023-12-19 23:40:04,489 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-19 23:40:04,490 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-19 23:40:04,490 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-19 23:40:04,490 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-19 23:40:04,497 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:40:04" (1/1) ... [2023-12-19 23:40:04,498 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:40:04" (1/1) ... [2023-12-19 23:40:04,499 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:40:04" (1/1) ... [2023-12-19 23:40:04,510 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]. [2023-12-19 23:40:04,510 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:40:04" (1/1) ... [2023-12-19 23:40:04,511 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:40:04" (1/1) ... [2023-12-19 23:40:04,514 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:40:04" (1/1) ... [2023-12-19 23:40:04,517 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:40:04" (1/1) ... [2023-12-19 23:40:04,518 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:40:04" (1/1) ... [2023-12-19 23:40:04,519 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:40:04" (1/1) ... [2023-12-19 23:40:04,521 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-19 23:40:04,522 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-19 23:40:04,522 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-19 23:40:04,522 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-19 23:40:04,523 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:40:04" (1/1) ... [2023-12-19 23:40:04,527 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-19 23:40:04,535 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 23:40:04,558 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) [2023-12-19 23:40:04,575 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 [2023-12-19 23:40:04,586 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-19 23:40:04,586 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-12-19 23:40:04,586 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-12-19 23:40:04,586 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-12-19 23:40:04,586 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-12-19 23:40:04,586 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-12-19 23:40:04,587 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-12-19 23:40:04,587 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2023-12-19 23:40:04,587 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2023-12-19 23:40:04,587 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-12-19 23:40:04,587 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-12-19 23:40:04,587 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2023-12-19 23:40:04,587 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2023-12-19 23:40:04,587 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2023-12-19 23:40:04,587 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2023-12-19 23:40:04,587 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2023-12-19 23:40:04,587 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2023-12-19 23:40:04,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-19 23:40:04,588 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-12-19 23:40:04,588 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-12-19 23:40:04,588 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-19 23:40:04,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-19 23:40:04,654 INFO L241 CfgBuilder]: Building ICFG [2023-12-19 23:40:04,656 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-19 23:40:04,840 INFO L282 CfgBuilder]: Performing block encoding [2023-12-19 23:40:04,895 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-19 23:40:04,895 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-12-19 23:40:04,896 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 11:40:04 BoogieIcfgContainer [2023-12-19 23:40:04,896 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-19 23:40:04,915 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-19 23:40:04,915 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-19 23:40:04,918 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-19 23:40:04,918 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.12 11:40:04" (1/3) ... [2023-12-19 23:40:04,918 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fa4c4c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 11:40:04, skipping insertion in model container [2023-12-19 23:40:04,918 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:40:04" (2/3) ... [2023-12-19 23:40:04,919 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fa4c4c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 11:40:04, skipping insertion in model container [2023-12-19 23:40:04,919 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 11:40:04" (3/3) ... [2023-12-19 23:40:04,920 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product61.cil.c [2023-12-19 23:40:04,933 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-19 23:40:04,933 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-19 23:40:04,990 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-19 23:40:04,995 INFO L357 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, mHoare=true, 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;@4c9d31ce, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-19 23:40:04,995 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-19 23:40:05,023 INFO L276 IsEmpty]: Start isEmpty. Operand has 82 states, 55 states have (on average 1.5272727272727273) internal successors, (84), 65 states have internal predecessors, (84), 16 states have call successors, (16), 9 states have call predecessors, (16), 9 states have return successors, (16), 11 states have call predecessors, (16), 16 states have call successors, (16) [2023-12-19 23:40:05,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-12-19 23:40:05,029 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:40:05,029 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 23:40:05,030 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:40:05,033 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:40:05,033 INFO L85 PathProgramCache]: Analyzing trace with hash -1904638586, now seen corresponding path program 1 times [2023-12-19 23:40:05,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:40:05,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094315444] [2023-12-19 23:40:05,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:40:05,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:40:05,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:05,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 23:40:05,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:40:05,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094315444] [2023-12-19 23:40:05,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1094315444] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:40:05,156 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:40:05,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-19 23:40:05,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131602660] [2023-12-19 23:40:05,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:40:05,161 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-19 23:40:05,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:40:05,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-19 23:40:05,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-19 23:40:05,191 INFO L87 Difference]: Start difference. First operand has 82 states, 55 states have (on average 1.5272727272727273) internal successors, (84), 65 states have internal predecessors, (84), 16 states have call successors, (16), 9 states have call predecessors, (16), 9 states have return successors, (16), 11 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 23:40:05,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:40:05,270 INFO L93 Difference]: Finished difference Result 162 states and 233 transitions. [2023-12-19 23:40:05,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-19 23:40:05,273 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2023-12-19 23:40:05,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:40:05,281 INFO L225 Difference]: With dead ends: 162 [2023-12-19 23:40:05,281 INFO L226 Difference]: Without dead ends: 77 [2023-12-19 23:40:05,284 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-19 23:40:05,289 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 23:40:05,290 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 96 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 23:40:05,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2023-12-19 23:40:05,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2023-12-19 23:40:05,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 52 states have (on average 1.4230769230769231) internal successors, (74), 61 states have internal predecessors, (74), 16 states have call successors, (16), 9 states have call predecessors, (16), 8 states have return successors, (15), 10 states have call predecessors, (15), 15 states have call successors, (15) [2023-12-19 23:40:05,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 105 transitions. [2023-12-19 23:40:05,339 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 105 transitions. Word has length 12 [2023-12-19 23:40:05,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:40:05,339 INFO L495 AbstractCegarLoop]: Abstraction has 77 states and 105 transitions. [2023-12-19 23:40:05,339 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 23:40:05,340 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 105 transitions. [2023-12-19 23:40:05,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-12-19 23:40:05,341 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:40:05,341 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 23:40:05,341 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-19 23:40:05,341 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:40:05,342 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:40:05,342 INFO L85 PathProgramCache]: Analyzing trace with hash 443453378, now seen corresponding path program 1 times [2023-12-19 23:40:05,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:40:05,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420602503] [2023-12-19 23:40:05,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:40:05,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:40:05,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:05,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 23:40:05,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:40:05,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420602503] [2023-12-19 23:40:05,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [420602503] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:40:05,399 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:40:05,400 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-19 23:40:05,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721337316] [2023-12-19 23:40:05,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:40:05,401 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 23:40:05,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:40:05,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 23:40:05,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 23:40:05,401 INFO L87 Difference]: Start difference. First operand 77 states and 105 transitions. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 23:40:05,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:40:05,427 INFO L93 Difference]: Finished difference Result 127 states and 173 transitions. [2023-12-19 23:40:05,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 23:40:05,428 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2023-12-19 23:40:05,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:40:05,429 INFO L225 Difference]: With dead ends: 127 [2023-12-19 23:40:05,429 INFO L226 Difference]: Without dead ends: 69 [2023-12-19 23:40:05,430 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 23:40:05,431 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 11 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 150 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 23:40:05,431 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 150 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 23:40:05,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2023-12-19 23:40:05,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2023-12-19 23:40:05,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 47 states have (on average 1.446808510638298) internal successors, (68), 56 states have internal predecessors, (68), 13 states have call successors, (13), 8 states have call predecessors, (13), 8 states have return successors, (13), 8 states have call predecessors, (13), 13 states have call successors, (13) [2023-12-19 23:40:05,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 94 transitions. [2023-12-19 23:40:05,444 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 94 transitions. Word has length 13 [2023-12-19 23:40:05,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:40:05,444 INFO L495 AbstractCegarLoop]: Abstraction has 69 states and 94 transitions. [2023-12-19 23:40:05,445 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 23:40:05,445 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 94 transitions. [2023-12-19 23:40:05,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-12-19 23:40:05,448 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:40:05,448 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 23:40:05,448 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-19 23:40:05,448 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:40:05,449 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:40:05,449 INFO L85 PathProgramCache]: Analyzing trace with hash -1600980690, now seen corresponding path program 1 times [2023-12-19 23:40:05,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:40:05,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523994545] [2023-12-19 23:40:05,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:40:05,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:40:05,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:05,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 23:40:05,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:40:05,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523994545] [2023-12-19 23:40:05,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [523994545] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:40:05,504 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:40:05,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-19 23:40:05,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716937585] [2023-12-19 23:40:05,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:40:05,505 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 23:40:05,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:40:05,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 23:40:05,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 23:40:05,505 INFO L87 Difference]: Start difference. First operand 69 states and 94 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 2 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 23:40:05,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:40:05,526 INFO L93 Difference]: Finished difference Result 136 states and 187 transitions. [2023-12-19 23:40:05,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 23:40:05,526 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 2 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2023-12-19 23:40:05,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:40:05,527 INFO L225 Difference]: With dead ends: 136 [2023-12-19 23:40:05,527 INFO L226 Difference]: Without dead ends: 69 [2023-12-19 23:40:05,528 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 23:40:05,529 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 82 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 23:40:05,529 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 80 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 23:40:05,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2023-12-19 23:40:05,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2023-12-19 23:40:05,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 47 states have (on average 1.425531914893617) internal successors, (67), 56 states have internal predecessors, (67), 13 states have call successors, (13), 8 states have call predecessors, (13), 8 states have return successors, (13), 8 states have call predecessors, (13), 13 states have call successors, (13) [2023-12-19 23:40:05,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 93 transitions. [2023-12-19 23:40:05,536 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 93 transitions. Word has length 16 [2023-12-19 23:40:05,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:40:05,536 INFO L495 AbstractCegarLoop]: Abstraction has 69 states and 93 transitions. [2023-12-19 23:40:05,536 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 2 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 23:40:05,536 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 93 transitions. [2023-12-19 23:40:05,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-12-19 23:40:05,537 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:40:05,537 INFO L195 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] [2023-12-19 23:40:05,537 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-19 23:40:05,537 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:40:05,538 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:40:05,538 INFO L85 PathProgramCache]: Analyzing trace with hash 1814738836, now seen corresponding path program 1 times [2023-12-19 23:40:05,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:40:05,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656998676] [2023-12-19 23:40:05,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:40:05,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:40:05,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:05,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-19 23:40:05,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:05,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-19 23:40:05,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:05,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 23:40:05,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:40:05,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [656998676] [2023-12-19 23:40:05,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [656998676] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:40:05,599 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:40:05,599 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-19 23:40:05,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500761767] [2023-12-19 23:40:05,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:40:05,599 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-19 23:40:05,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:40:05,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-19 23:40:05,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-19 23:40:05,601 INFO L87 Difference]: Start difference. First operand 69 states and 93 transitions. Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-19 23:40:05,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:40:05,756 INFO L93 Difference]: Finished difference Result 199 states and 267 transitions. [2023-12-19 23:40:05,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-19 23:40:05,756 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 26 [2023-12-19 23:40:05,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:40:05,757 INFO L225 Difference]: With dead ends: 199 [2023-12-19 23:40:05,757 INFO L226 Difference]: Without dead ends: 132 [2023-12-19 23:40:05,758 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-19 23:40:05,759 INFO L413 NwaCegarLoop]: 58 mSDtfsCounter, 130 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 23:40:05,759 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 128 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 23:40:05,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2023-12-19 23:40:05,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 126. [2023-12-19 23:40:05,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 89 states have (on average 1.3595505617977528) internal successors, (121), 98 states have internal predecessors, (121), 16 states have call successors, (16), 15 states have call predecessors, (16), 20 states have return successors, (27), 18 states have call predecessors, (27), 16 states have call successors, (27) [2023-12-19 23:40:05,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 164 transitions. [2023-12-19 23:40:05,772 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 164 transitions. Word has length 26 [2023-12-19 23:40:05,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:40:05,773 INFO L495 AbstractCegarLoop]: Abstraction has 126 states and 164 transitions. [2023-12-19 23:40:05,773 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-19 23:40:05,773 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 164 transitions. [2023-12-19 23:40:05,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-12-19 23:40:05,774 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:40:05,774 INFO L195 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] [2023-12-19 23:40:05,774 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-19 23:40:05,780 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:40:05,780 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:40:05,780 INFO L85 PathProgramCache]: Analyzing trace with hash -215112557, now seen corresponding path program 1 times [2023-12-19 23:40:05,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:40:05,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882763202] [2023-12-19 23:40:05,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:40:05,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:40:05,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:05,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-19 23:40:05,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:05,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 23:40:05,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:05,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 23:40:05,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:05,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 23:40:05,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:40:05,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [882763202] [2023-12-19 23:40:05,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [882763202] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:40:05,915 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:40:05,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-19 23:40:05,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362638632] [2023-12-19 23:40:05,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:40:05,915 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-19 23:40:05,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:40:05,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-19 23:40:05,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-19 23:40:05,916 INFO L87 Difference]: Start difference. First operand 126 states and 164 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 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) [2023-12-19 23:40:06,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:40:06,066 INFO L93 Difference]: Finished difference Result 134 states and 170 transitions. [2023-12-19 23:40:06,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-19 23:40:06,067 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 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 36 [2023-12-19 23:40:06,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:40:06,071 INFO L225 Difference]: With dead ends: 134 [2023-12-19 23:40:06,071 INFO L226 Difference]: Without dead ends: 132 [2023-12-19 23:40:06,071 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-12-19 23:40:06,079 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 111 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 183 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 23:40:06,079 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 183 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 23:40:06,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2023-12-19 23:40:06,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 126. [2023-12-19 23:40:06,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 89 states have (on average 1.3370786516853932) internal successors, (119), 98 states have internal predecessors, (119), 16 states have call successors, (16), 15 states have call predecessors, (16), 20 states have return successors, (27), 18 states have call predecessors, (27), 16 states have call successors, (27) [2023-12-19 23:40:06,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 162 transitions. [2023-12-19 23:40:06,093 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 162 transitions. Word has length 36 [2023-12-19 23:40:06,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:40:06,093 INFO L495 AbstractCegarLoop]: Abstraction has 126 states and 162 transitions. [2023-12-19 23:40:06,094 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 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) [2023-12-19 23:40:06,094 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 162 transitions. [2023-12-19 23:40:06,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-12-19 23:40:06,094 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:40:06,094 INFO L195 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] [2023-12-19 23:40:06,094 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-19 23:40:06,095 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:40:06,095 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:40:06,095 INFO L85 PathProgramCache]: Analyzing trace with hash 1252492999, now seen corresponding path program 1 times [2023-12-19 23:40:06,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:40:06,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1879587973] [2023-12-19 23:40:06,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:40:06,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:40:06,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:06,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-19 23:40:06,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:06,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 23:40:06,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:06,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 23:40:06,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:06,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 23:40:06,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:40:06,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1879587973] [2023-12-19 23:40:06,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1879587973] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:40:06,174 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:40:06,174 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-19 23:40:06,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511260465] [2023-12-19 23:40:06,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:40:06,174 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-19 23:40:06,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:40:06,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-19 23:40:06,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-19 23:40:06,175 INFO L87 Difference]: Start difference. First operand 126 states and 162 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, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-12-19 23:40:06,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:40:06,319 INFO L93 Difference]: Finished difference Result 326 states and 437 transitions. [2023-12-19 23:40:06,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-19 23:40:06,319 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, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 39 [2023-12-19 23:40:06,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:40:06,322 INFO L225 Difference]: With dead ends: 326 [2023-12-19 23:40:06,323 INFO L226 Difference]: Without dead ends: 202 [2023-12-19 23:40:06,324 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-19 23:40:06,329 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 124 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 192 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 23:40:06,331 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 192 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 23:40:06,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2023-12-19 23:40:06,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 200. [2023-12-19 23:40:06,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200 states, 143 states have (on average 1.3076923076923077) internal successors, (187), 155 states have internal predecessors, (187), 26 states have call successors, (26), 25 states have call predecessors, (26), 30 states have return successors, (45), 28 states have call predecessors, (45), 26 states have call successors, (45) [2023-12-19 23:40:06,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 258 transitions. [2023-12-19 23:40:06,355 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 258 transitions. Word has length 39 [2023-12-19 23:40:06,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:40:06,355 INFO L495 AbstractCegarLoop]: Abstraction has 200 states and 258 transitions. [2023-12-19 23:40:06,356 INFO L496 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, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-12-19 23:40:06,356 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 258 transitions. [2023-12-19 23:40:06,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-12-19 23:40:06,360 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:40:06,360 INFO L195 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] [2023-12-19 23:40:06,360 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-19 23:40:06,360 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:40:06,360 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:40:06,361 INFO L85 PathProgramCache]: Analyzing trace with hash 273228833, now seen corresponding path program 1 times [2023-12-19 23:40:06,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:40:06,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772980187] [2023-12-19 23:40:06,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:40:06,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:40:06,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:06,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-19 23:40:06,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:06,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-19 23:40:06,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:06,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 23:40:06,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:06,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 23:40:06,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:06,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 23:40:06,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:40:06,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1772980187] [2023-12-19 23:40:06,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1772980187] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:40:06,522 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:40:06,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-19 23:40:06,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058578466] [2023-12-19 23:40:06,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:40:06,522 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-19 23:40:06,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:40:06,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-19 23:40:06,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-19 23:40:06,523 INFO L87 Difference]: Start difference. First operand 200 states and 258 transitions. Second operand has 8 states, 8 states have (on average 4.25) internal successors, (34), 6 states have internal predecessors, (34), 3 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2023-12-19 23:40:06,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:40:06,958 INFO L93 Difference]: Finished difference Result 455 states and 628 transitions. [2023-12-19 23:40:06,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-19 23:40:06,958 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.25) internal successors, (34), 6 states have internal predecessors, (34), 3 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) Word has length 43 [2023-12-19 23:40:06,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:40:06,959 INFO L225 Difference]: With dead ends: 455 [2023-12-19 23:40:06,959 INFO L226 Difference]: Without dead ends: 331 [2023-12-19 23:40:06,960 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=86, Invalid=294, Unknown=0, NotChecked=0, Total=380 [2023-12-19 23:40:06,960 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 344 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 604 mSolverCounterSat, 130 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 347 SdHoareTripleChecker+Valid, 316 SdHoareTripleChecker+Invalid, 734 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 130 IncrementalHoareTripleChecker+Valid, 604 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-19 23:40:06,961 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [347 Valid, 316 Invalid, 734 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [130 Valid, 604 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-19 23:40:06,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 331 states. [2023-12-19 23:40:07,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 331 to 312. [2023-12-19 23:40:07,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 312 states, 223 states have (on average 1.2825112107623318) internal successors, (286), 245 states have internal predecessors, (286), 40 states have call successors, (40), 35 states have call predecessors, (40), 48 states have return successors, (93), 45 states have call predecessors, (93), 40 states have call successors, (93) [2023-12-19 23:40:07,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 419 transitions. [2023-12-19 23:40:07,004 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 419 transitions. Word has length 43 [2023-12-19 23:40:07,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:40:07,005 INFO L495 AbstractCegarLoop]: Abstraction has 312 states and 419 transitions. [2023-12-19 23:40:07,005 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.25) internal successors, (34), 6 states have internal predecessors, (34), 3 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2023-12-19 23:40:07,005 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 419 transitions. [2023-12-19 23:40:07,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-12-19 23:40:07,007 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:40:07,007 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 23:40:07,007 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-19 23:40:07,007 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:40:07,007 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:40:07,007 INFO L85 PathProgramCache]: Analyzing trace with hash 963656110, now seen corresponding path program 1 times [2023-12-19 23:40:07,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:40:07,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916653135] [2023-12-19 23:40:07,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:40:07,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:40:07,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:07,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-19 23:40:07,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:07,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-19 23:40:07,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:07,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 23:40:07,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:07,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 23:40:07,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:07,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-19 23:40:07,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:07,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-19 23:40:07,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:07,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-19 23:40:07,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:07,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 23:40:07,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:07,116 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 11 proven. 4 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-12-19 23:40:07,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:40:07,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [916653135] [2023-12-19 23:40:07,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [916653135] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 23:40:07,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [980671405] [2023-12-19 23:40:07,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:40:07,116 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 23:40:07,116 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 23:40:07,183 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) [2023-12-19 23:40:07,228 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-19 23:40:07,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:07,276 INFO L262 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-19 23:40:07,280 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 23:40:07,307 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-12-19 23:40:07,307 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 23:40:07,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [980671405] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:40:07,307 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 23:40:07,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 6 [2023-12-19 23:40:07,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237101938] [2023-12-19 23:40:07,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:40:07,308 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-19 23:40:07,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:40:07,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-19 23:40:07,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-19 23:40:07,309 INFO L87 Difference]: Start difference. First operand 312 states and 419 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-19 23:40:07,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:40:07,348 INFO L93 Difference]: Finished difference Result 634 states and 914 transitions. [2023-12-19 23:40:07,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-19 23:40:07,349 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) Word has length 78 [2023-12-19 23:40:07,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:40:07,351 INFO L225 Difference]: With dead ends: 634 [2023-12-19 23:40:07,351 INFO L226 Difference]: Without dead ends: 324 [2023-12-19 23:40:07,352 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-19 23:40:07,353 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 2 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 237 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 23:40:07,353 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 237 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 23:40:07,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324 states. [2023-12-19 23:40:07,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324 to 318. [2023-12-19 23:40:07,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 318 states, 229 states have (on average 1.275109170305677) internal successors, (292), 251 states have internal predecessors, (292), 40 states have call successors, (40), 35 states have call predecessors, (40), 48 states have return successors, (93), 45 states have call predecessors, (93), 40 states have call successors, (93) [2023-12-19 23:40:07,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 425 transitions. [2023-12-19 23:40:07,374 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 425 transitions. Word has length 78 [2023-12-19 23:40:07,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:40:07,374 INFO L495 AbstractCegarLoop]: Abstraction has 318 states and 425 transitions. [2023-12-19 23:40:07,374 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-19 23:40:07,374 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 425 transitions. [2023-12-19 23:40:07,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-12-19 23:40:07,375 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:40:07,376 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 23:40:07,383 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-12-19 23:40:07,581 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 23:40:07,581 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:40:07,582 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:40:07,582 INFO L85 PathProgramCache]: Analyzing trace with hash -2070393936, now seen corresponding path program 1 times [2023-12-19 23:40:07,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:40:07,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428183221] [2023-12-19 23:40:07,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:40:07,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:40:07,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:07,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-19 23:40:07,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:07,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-19 23:40:07,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:07,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 23:40:07,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:07,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 23:40:07,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:07,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-19 23:40:07,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:07,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-19 23:40:07,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:07,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-19 23:40:07,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:07,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 23:40:07,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:07,690 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 11 proven. 4 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-12-19 23:40:07,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:40:07,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428183221] [2023-12-19 23:40:07,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1428183221] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 23:40:07,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1434465244] [2023-12-19 23:40:07,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:40:07,691 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 23:40:07,691 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 23:40:07,713 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) [2023-12-19 23:40:07,728 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-19 23:40:07,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:07,798 INFO L262 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-19 23:40:07,802 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 23:40:07,819 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-12-19 23:40:07,819 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 23:40:07,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1434465244] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:40:07,819 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 23:40:07,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 7 [2023-12-19 23:40:07,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786286796] [2023-12-19 23:40:07,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:40:07,820 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-19 23:40:07,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:40:07,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-19 23:40:07,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-19 23:40:07,821 INFO L87 Difference]: Start difference. First operand 318 states and 425 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-19 23:40:07,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:40:07,863 INFO L93 Difference]: Finished difference Result 579 states and 796 transitions. [2023-12-19 23:40:07,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-19 23:40:07,864 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) Word has length 78 [2023-12-19 23:40:07,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:40:07,865 INFO L225 Difference]: With dead ends: 579 [2023-12-19 23:40:07,865 INFO L226 Difference]: Without dead ends: 263 [2023-12-19 23:40:07,866 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-12-19 23:40:07,866 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 6 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 236 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 23:40:07,866 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 236 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 23:40:07,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263 states. [2023-12-19 23:40:07,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263 to 263. [2023-12-19 23:40:07,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 263 states, 189 states have (on average 1.2592592592592593) internal successors, (238), 206 states have internal predecessors, (238), 35 states have call successors, (35), 30 states have call predecessors, (35), 38 states have return successors, (72), 37 states have call predecessors, (72), 35 states have call successors, (72) [2023-12-19 23:40:07,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 345 transitions. [2023-12-19 23:40:07,880 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 345 transitions. Word has length 78 [2023-12-19 23:40:07,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:40:07,880 INFO L495 AbstractCegarLoop]: Abstraction has 263 states and 345 transitions. [2023-12-19 23:40:07,880 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-19 23:40:07,880 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 345 transitions. [2023-12-19 23:40:07,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-12-19 23:40:07,881 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:40:07,881 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 23:40:07,900 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-12-19 23:40:08,086 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2023-12-19 23:40:08,087 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:40:08,087 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:40:08,087 INFO L85 PathProgramCache]: Analyzing trace with hash -1165863272, now seen corresponding path program 1 times [2023-12-19 23:40:08,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:40:08,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315431254] [2023-12-19 23:40:08,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:40:08,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:40:08,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:08,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-19 23:40:08,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:08,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-19 23:40:08,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:08,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-19 23:40:08,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:08,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 23:40:08,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:08,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 23:40:08,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:08,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 23:40:08,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:08,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-12-19 23:40:08,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:08,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-19 23:40:08,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:08,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 23:40:08,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:08,249 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 10 proven. 8 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-19 23:40:08,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:40:08,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315431254] [2023-12-19 23:40:08,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1315431254] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 23:40:08,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1089116124] [2023-12-19 23:40:08,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:40:08,250 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 23:40:08,251 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 23:40:08,252 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 23:40:08,317 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-19 23:40:08,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:08,359 INFO L262 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-19 23:40:08,366 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 23:40:08,434 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 15 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 23:40:08,434 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 23:40:08,535 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 11 proven. 7 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-19 23:40:08,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1089116124] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-19 23:40:08,535 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-19 23:40:08,535 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5, 5] total 8 [2023-12-19 23:40:08,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581469969] [2023-12-19 23:40:08,536 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-19 23:40:08,537 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-19 23:40:08,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:40:08,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-19 23:40:08,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-12-19 23:40:08,537 INFO L87 Difference]: Start difference. First operand 263 states and 345 transitions. Second operand has 8 states, 8 states have (on average 9.5) internal successors, (76), 5 states have internal predecessors, (76), 3 states have call successors, (21), 6 states have call predecessors, (21), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-19 23:40:08,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:40:08,985 INFO L93 Difference]: Finished difference Result 629 states and 879 transitions. [2023-12-19 23:40:08,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-19 23:40:08,985 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.5) internal successors, (76), 5 states have internal predecessors, (76), 3 states have call successors, (21), 6 states have call predecessors, (21), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 82 [2023-12-19 23:40:08,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:40:08,988 INFO L225 Difference]: With dead ends: 629 [2023-12-19 23:40:08,988 INFO L226 Difference]: Without dead ends: 411 [2023-12-19 23:40:08,989 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 182 SyntacticMatches, 7 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=126, Invalid=294, Unknown=0, NotChecked=0, Total=420 [2023-12-19 23:40:08,990 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 208 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 461 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 270 SdHoareTripleChecker+Invalid, 551 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 461 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-19 23:40:08,990 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [214 Valid, 270 Invalid, 551 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 461 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-19 23:40:08,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 411 states. [2023-12-19 23:40:09,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 411 to 366. [2023-12-19 23:40:09,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 366 states, 260 states have (on average 1.2653846153846153) internal successors, (329), 284 states have internal predecessors, (329), 51 states have call successors, (51), 44 states have call predecessors, (51), 54 states have return successors, (111), 50 states have call predecessors, (111), 51 states have call successors, (111) [2023-12-19 23:40:09,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 491 transitions. [2023-12-19 23:40:09,013 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 491 transitions. Word has length 82 [2023-12-19 23:40:09,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:40:09,013 INFO L495 AbstractCegarLoop]: Abstraction has 366 states and 491 transitions. [2023-12-19 23:40:09,013 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.5) internal successors, (76), 5 states have internal predecessors, (76), 3 states have call successors, (21), 6 states have call predecessors, (21), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-19 23:40:09,013 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 491 transitions. [2023-12-19 23:40:09,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-12-19 23:40:09,016 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:40:09,016 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 23:40:09,025 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-12-19 23:40:09,221 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 23:40:09,221 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:40:09,222 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:40:09,222 INFO L85 PathProgramCache]: Analyzing trace with hash 1569468605, now seen corresponding path program 2 times [2023-12-19 23:40:09,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:40:09,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519985088] [2023-12-19 23:40:09,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:40:09,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:40:09,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:09,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-19 23:40:09,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:09,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-19 23:40:09,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:09,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-19 23:40:09,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:09,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 23:40:09,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:09,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 23:40:09,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:09,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 23:40:09,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:09,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-19 23:40:09,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:09,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-19 23:40:09,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:09,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-19 23:40:09,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:09,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 23:40:09,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:09,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-12-19 23:40:09,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:09,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-12-19 23:40:09,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:09,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-19 23:40:09,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:09,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 23:40:09,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:09,552 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 44 proven. 19 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-19 23:40:09,552 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:40:09,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [519985088] [2023-12-19 23:40:09,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [519985088] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 23:40:09,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1546679503] [2023-12-19 23:40:09,552 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-19 23:40:09,553 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 23:40:09,553 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 23:40:09,554 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 23:40:09,556 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-19 23:40:09,662 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-19 23:40:09,662 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-19 23:40:09,664 INFO L262 TraceCheckSpWp]: Trace formula consists of 403 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-19 23:40:09,669 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 23:40:09,731 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 72 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-12-19 23:40:09,731 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 23:40:09,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1546679503] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:40:09,731 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 23:40:09,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 11 [2023-12-19 23:40:09,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299947609] [2023-12-19 23:40:09,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:40:09,732 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-19 23:40:09,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:40:09,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-19 23:40:09,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2023-12-19 23:40:09,733 INFO L87 Difference]: Start difference. First operand 366 states and 491 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 3 states have call successors, (14), 4 states have call predecessors, (14), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-19 23:40:09,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:40:09,889 INFO L93 Difference]: Finished difference Result 970 states and 1374 transitions. [2023-12-19 23:40:09,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-19 23:40:09,900 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 3 states have call successors, (14), 4 states have call predecessors, (14), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 121 [2023-12-19 23:40:09,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:40:09,903 INFO L225 Difference]: With dead ends: 970 [2023-12-19 23:40:09,903 INFO L226 Difference]: Without dead ends: 648 [2023-12-19 23:40:09,904 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 146 SyntacticMatches, 3 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2023-12-19 23:40:09,904 INFO L413 NwaCegarLoop]: 137 mSDtfsCounter, 127 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 429 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 23:40:09,904 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 429 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 23:40:09,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 648 states. [2023-12-19 23:40:09,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 648 to 629. [2023-12-19 23:40:09,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 629 states, 448 states have (on average 1.2589285714285714) internal successors, (564), 480 states have internal predecessors, (564), 86 states have call successors, (86), 80 states have call predecessors, (86), 94 states have return successors, (175), 86 states have call predecessors, (175), 86 states have call successors, (175) [2023-12-19 23:40:09,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 629 states to 629 states and 825 transitions. [2023-12-19 23:40:09,958 INFO L78 Accepts]: Start accepts. Automaton has 629 states and 825 transitions. Word has length 121 [2023-12-19 23:40:09,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:40:09,959 INFO L495 AbstractCegarLoop]: Abstraction has 629 states and 825 transitions. [2023-12-19 23:40:09,959 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 3 states have call successors, (14), 4 states have call predecessors, (14), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-19 23:40:09,959 INFO L276 IsEmpty]: Start isEmpty. Operand 629 states and 825 transitions. [2023-12-19 23:40:09,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-12-19 23:40:09,965 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:40:09,965 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 23:40:09,973 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-12-19 23:40:10,170 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 23:40:10,171 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:40:10,171 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:40:10,171 INFO L85 PathProgramCache]: Analyzing trace with hash -1464581441, now seen corresponding path program 1 times [2023-12-19 23:40:10,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:40:10,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955140208] [2023-12-19 23:40:10,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:40:10,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:40:10,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:10,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-19 23:40:10,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:10,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-19 23:40:10,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:10,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-19 23:40:10,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:10,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 23:40:10,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:10,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 23:40:10,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:10,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 23:40:10,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:10,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-19 23:40:10,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:10,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-19 23:40:10,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:10,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-19 23:40:10,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:10,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 23:40:10,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:10,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-12-19 23:40:10,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:10,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-12-19 23:40:10,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:10,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-19 23:40:10,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:10,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 23:40:10,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:10,267 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 38 proven. 5 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2023-12-19 23:40:10,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:40:10,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1955140208] [2023-12-19 23:40:10,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1955140208] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 23:40:10,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2093974126] [2023-12-19 23:40:10,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:40:10,268 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 23:40:10,268 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 23:40:10,269 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 23:40:10,297 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-19 23:40:10,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:10,350 INFO L262 TraceCheckSpWp]: Trace formula consists of 404 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-19 23:40:10,354 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 23:40:10,362 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-12-19 23:40:10,362 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 23:40:10,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2093974126] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:40:10,362 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 23:40:10,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 7 [2023-12-19 23:40:10,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354485895] [2023-12-19 23:40:10,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:40:10,363 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-19 23:40:10,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:40:10,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-19 23:40:10,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-12-19 23:40:10,363 INFO L87 Difference]: Start difference. First operand 629 states and 825 transitions. Second operand has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-19 23:40:10,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:40:10,415 INFO L93 Difference]: Finished difference Result 863 states and 1120 transitions. [2023-12-19 23:40:10,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-19 23:40:10,416 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 121 [2023-12-19 23:40:10,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:40:10,416 INFO L225 Difference]: With dead ends: 863 [2023-12-19 23:40:10,416 INFO L226 Difference]: Without dead ends: 0 [2023-12-19 23:40:10,417 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-12-19 23:40:10,417 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 2 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 236 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 23:40:10,418 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 236 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 23:40:10,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-19 23:40:10,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-19 23:40:10,418 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) [2023-12-19 23:40:10,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-19 23:40:10,418 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 121 [2023-12-19 23:40:10,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:40:10,418 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-19 23:40:10,418 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-19 23:40:10,418 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-19 23:40:10,418 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-19 23:40:10,420 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-19 23:40:10,444 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-12-19 23:40:10,625 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-12-19 23:40:10,627 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-19 23:40:11,208 INFO L899 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 245 252) no Hoare annotation was computed. [2023-12-19 23:40:11,209 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 245 252) the Hoare annotation is: (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) (< ~waterLevel~0 1) (not (= 1 ~systemActive~0))) [2023-12-19 23:40:11,209 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 135 141) no Hoare annotation was computed. [2023-12-19 23:40:11,209 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 135 141) the Hoare annotation is: true [2023-12-19 23:40:11,209 INFO L899 garLoopResultBuilder]: For program point L447-1(lines 443 454) no Hoare annotation was computed. [2023-12-19 23:40:11,209 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 443 454) the Hoare annotation is: true [2023-12-19 23:40:11,209 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 443 454) no Hoare annotation was computed. [2023-12-19 23:40:11,209 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 913 942) no Hoare annotation was computed. [2023-12-19 23:40:11,209 INFO L899 garLoopResultBuilder]: For program point L927(lines 927 931) no Hoare annotation was computed. [2023-12-19 23:40:11,209 INFO L902 garLoopResultBuilder]: At program point L927-1(lines 927 931) the Hoare annotation is: true [2023-12-19 23:40:11,209 INFO L902 garLoopResultBuilder]: At program point L923-2(lines 923 937) the Hoare annotation is: true [2023-12-19 23:40:11,209 INFO L902 garLoopResultBuilder]: At program point L919(line 919) the Hoare annotation is: true [2023-12-19 23:40:11,209 INFO L899 garLoopResultBuilder]: For program point L919-1(line 919) no Hoare annotation was computed. [2023-12-19 23:40:11,209 INFO L899 garLoopResultBuilder]: For program point L938(lines 913 942) no Hoare annotation was computed. [2023-12-19 23:40:11,209 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 913 942) the Hoare annotation is: true [2023-12-19 23:40:11,209 INFO L899 garLoopResultBuilder]: For program point L934(line 934) no Hoare annotation was computed. [2023-12-19 23:40:11,209 INFO L899 garLoopResultBuilder]: For program point L122-1(lines 122 128) no Hoare annotation was computed. [2023-12-19 23:40:11,210 INFO L895 garLoopResultBuilder]: At program point L209(line 209) the Hoare annotation is: (let ((.cse2 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (not (= 1 ~systemActive~0))) (.cse1 (< |old(~waterLevel~0)| 2))) (and (or .cse0 .cse1 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= 1 ~waterLevel~0))) (or .cse2 (not (= |old(~waterLevel~0)| 1)) .cse0) (or .cse2 .cse0 .cse1))) [2023-12-19 23:40:11,210 INFO L895 garLoopResultBuilder]: At program point L205(line 205) the Hoare annotation is: (let ((.cse2 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (not (= 1 ~systemActive~0))) (.cse1 (< |old(~waterLevel~0)| 2))) (and (or .cse0 .cse1 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= 1 ~waterLevel~0))) (or .cse2 (not (= |old(~waterLevel~0)| 1)) .cse0) (or .cse2 .cse0 .cse1))) [2023-12-19 23:40:11,210 INFO L895 garLoopResultBuilder]: At program point L201(line 201) the Hoare annotation is: (let ((.cse2 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (not (= 1 ~systemActive~0))) (.cse1 (< |old(~waterLevel~0)| 2))) (and (or .cse0 .cse1 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= 1 ~waterLevel~0))) (or .cse2 (not (= |old(~waterLevel~0)| 1)) .cse0) (or .cse2 .cse0 .cse1))) [2023-12-19 23:40:11,210 INFO L899 garLoopResultBuilder]: For program point L201-1(line 201) no Hoare annotation was computed. [2023-12-19 23:40:11,210 INFO L895 garLoopResultBuilder]: At program point L214(line 214) the Hoare annotation is: (let ((.cse2 (= |old(~pumpRunning~0)| 0))) (let ((.cse0 (not .cse2)) (.cse1 (not (= 1 ~systemActive~0)))) (and (or .cse0 (= ~pumpRunning~0 0) (< |old(~waterLevel~0)| 1) .cse1) (or .cse1 (and .cse2 (= |old(~waterLevel~0)| ~waterLevel~0)) (< |old(~waterLevel~0)| 2)) (or .cse0 (not (= |old(~waterLevel~0)| 1)) .cse1 (= ~waterLevel~0 1))))) [2023-12-19 23:40:11,210 INFO L899 garLoopResultBuilder]: For program point L214-1(lines 195 219) no Hoare annotation was computed. [2023-12-19 23:40:11,210 INFO L899 garLoopResultBuilder]: For program point L532(lines 532 538) no Hoare annotation was computed. [2023-12-19 23:40:11,210 INFO L899 garLoopResultBuilder]: For program point L115-1(lines 114 133) no Hoare annotation was computed. [2023-12-19 23:40:11,210 INFO L899 garLoopResultBuilder]: For program point L528(lines 528 541) no Hoare annotation was computed. [2023-12-19 23:40:11,210 INFO L899 garLoopResultBuilder]: For program point L528-1(lines 520 544) no Hoare annotation was computed. [2023-12-19 23:40:11,210 INFO L899 garLoopResultBuilder]: For program point L54(line 54) no Hoare annotation was computed. [2023-12-19 23:40:11,210 INFO L899 garLoopResultBuilder]: For program point L203(lines 203 211) no Hoare annotation was computed. [2023-12-19 23:40:11,210 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 111 134) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or .cse0 (< |old(~waterLevel~0)| 2) (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |old(~waterLevel~0)| ~waterLevel~0))) (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~waterLevel~0)| 1)) .cse0 (and (= ~pumpRunning~0 0) (= ~waterLevel~0 1))))) [2023-12-19 23:40:11,211 INFO L899 garLoopResultBuilder]: For program point L199(lines 199 216) no Hoare annotation was computed. [2023-12-19 23:40:11,211 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 111 134) no Hoare annotation was computed. [2023-12-19 23:40:11,211 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 54) no Hoare annotation was computed. [2023-12-19 23:40:11,211 INFO L899 garLoopResultBuilder]: For program point L423(lines 423 427) no Hoare annotation was computed. [2023-12-19 23:40:11,211 INFO L899 garLoopResultBuilder]: For program point L423-2(lines 419 430) no Hoare annotation was computed. [2023-12-19 23:40:11,211 INFO L895 garLoopResultBuilder]: At program point L407(lines 360 408) the Hoare annotation is: false [2023-12-19 23:40:11,211 INFO L899 garLoopResultBuilder]: For program point L362(lines 361 406) no Hoare annotation was computed. [2023-12-19 23:40:11,211 INFO L899 garLoopResultBuilder]: For program point L391(lines 391 402) no Hoare annotation was computed. [2023-12-19 23:40:11,211 INFO L899 garLoopResultBuilder]: For program point L994(lines 994 1001) no Hoare annotation was computed. [2023-12-19 23:40:11,211 INFO L899 garLoopResultBuilder]: For program point L994-2(lines 994 1001) no Hoare annotation was computed. [2023-12-19 23:40:11,211 INFO L895 garLoopResultBuilder]: At program point L383(line 383) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (<= 2 ~waterLevel~0) .cse0 .cse1) (and (= ~pumpRunning~0 0) .cse0 .cse1 (<= 1 ~waterLevel~0)))) [2023-12-19 23:40:11,211 INFO L895 garLoopResultBuilder]: At program point L404(lines 361 406) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (<= 2 ~waterLevel~0) .cse0 .cse1) (and (= ~pumpRunning~0 0) .cse0 .cse1 (<= 1 ~waterLevel~0)))) [2023-12-19 23:40:11,211 INFO L899 garLoopResultBuilder]: For program point L371(lines 371 377) no Hoare annotation was computed. [2023-12-19 23:40:11,211 INFO L899 garLoopResultBuilder]: For program point L371-1(lines 371 377) no Hoare annotation was computed. [2023-12-19 23:40:11,211 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-12-19 23:40:11,211 INFO L899 garLoopResultBuilder]: For program point L397(lines 397 401) no Hoare annotation was computed. [2023-12-19 23:40:11,211 INFO L895 garLoopResultBuilder]: At program point L397-2(lines 391 402) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (<= 2 ~waterLevel~0) .cse0 .cse1) (and (= ~pumpRunning~0 0) .cse0 .cse1 (<= 1 ~waterLevel~0)))) [2023-12-19 23:40:11,212 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-12-19 23:40:11,212 INFO L899 garLoopResultBuilder]: For program point L381(lines 381 387) no Hoare annotation was computed. [2023-12-19 23:40:11,212 INFO L899 garLoopResultBuilder]: For program point L381-1(lines 381 387) no Hoare annotation was computed. [2023-12-19 23:40:11,212 INFO L899 garLoopResultBuilder]: For program point L410(lines 351 414) no Hoare annotation was computed. [2023-12-19 23:40:11,212 INFO L895 garLoopResultBuilder]: At program point L373(line 373) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (<= 2 ~waterLevel~0) .cse0 .cse1) (and (= ~pumpRunning~0 0) .cse0 .cse1 (<= 1 ~waterLevel~0)))) [2023-12-19 23:40:11,212 INFO L899 garLoopResultBuilder]: For program point L318(lines 318 322) no Hoare annotation was computed. [2023-12-19 23:40:11,212 INFO L895 garLoopResultBuilder]: At program point L157(line 157) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0)))) (and (or (not (= ~waterLevel~0 1)) (<= 1 |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_#res#1|) .cse0 .cse1) (or .cse0 (< ~waterLevel~0 1) .cse1 (and (= ~pumpRunning~0 0) (= |processEnvironment__wrappee__highWaterSensor_~tmp~0#1| 0))))) [2023-12-19 23:40:11,212 INFO L899 garLoopResultBuilder]: For program point L318-2(lines 318 322) no Hoare annotation was computed. [2023-12-19 23:40:11,212 INFO L899 garLoopResultBuilder]: For program point L151(lines 151 159) no Hoare annotation was computed. [2023-12-19 23:40:11,212 INFO L899 garLoopResultBuilder]: For program point L500(lines 500 506) no Hoare annotation was computed. [2023-12-19 23:40:11,212 INFO L899 garLoopResultBuilder]: For program point L147(lines 147 164) no Hoare annotation was computed. [2023-12-19 23:40:11,212 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 143 167) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) (< ~waterLevel~0 1) (not (= 1 ~systemActive~0))) [2023-12-19 23:40:11,212 INFO L899 garLoopResultBuilder]: For program point isHighWaterSensorDry_returnLabel#1(lines 496 509) no Hoare annotation was computed. [2023-12-19 23:40:11,212 INFO L895 garLoopResultBuilder]: At program point L162(line 162) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (< ~waterLevel~0 1) (not (= 1 ~systemActive~0))) [2023-12-19 23:40:11,212 INFO L899 garLoopResultBuilder]: For program point L162-1(lines 143 167) no Hoare annotation was computed. [2023-12-19 23:40:11,212 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 143 167) no Hoare annotation was computed. [2023-12-19 23:40:11,212 INFO L899 garLoopResultBuilder]: For program point L235(lines 235 241) no Hoare annotation was computed. [2023-12-19 23:40:11,213 INFO L895 garLoopResultBuilder]: At program point L233(line 233) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0)))) (and (or (not (= ~waterLevel~0 1)) .cse0 .cse1) (or .cse0 (= ~pumpRunning~0 0) .cse1 (< ~waterLevel~0 2)))) [2023-12-19 23:40:11,213 INFO L899 garLoopResultBuilder]: For program point L235-2(lines 228 244) no Hoare annotation was computed. [2023-12-19 23:40:11,213 INFO L899 garLoopResultBuilder]: For program point L233-1(line 233) no Hoare annotation was computed. [2023-12-19 23:40:11,213 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 431 442) no Hoare annotation was computed. [2023-12-19 23:40:11,213 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 431 442) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or .cse0 (< |old(~waterLevel~0)| 2) (= |old(~waterLevel~0)| ~waterLevel~0)) (or (not (= ~pumpRunning~0 0)) (not (= |old(~waterLevel~0)| 1)) .cse0 (= ~waterLevel~0 1)))) [2023-12-19 23:40:11,213 INFO L899 garLoopResultBuilder]: For program point L435-1(lines 431 442) no Hoare annotation was computed. [2023-12-19 23:40:11,213 INFO L895 garLoopResultBuilder]: At program point L188(line 188) the Hoare annotation is: (or (< ~waterLevel~0 1) (not (= 1 ~systemActive~0)) (and (= ~pumpRunning~0 0) (= |old(~pumpRunning~0)| 0))) [2023-12-19 23:40:11,213 INFO L899 garLoopResultBuilder]: For program point L188-1(lines 169 193) no Hoare annotation was computed. [2023-12-19 23:40:11,213 INFO L899 garLoopResultBuilder]: For program point L337(lines 337 341) no Hoare annotation was computed. [2023-12-19 23:40:11,213 INFO L899 garLoopResultBuilder]: For program point L337-2(lines 337 341) no Hoare annotation was computed. [2023-12-19 23:40:11,213 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 169 193) the Hoare annotation is: (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) (< ~waterLevel~0 1) (not (= 1 ~systemActive~0))) [2023-12-19 23:40:11,213 INFO L895 garLoopResultBuilder]: At program point L183(line 183) the Hoare annotation is: (or (< ~waterLevel~0 1) (not (= 1 ~systemActive~0))) [2023-12-19 23:40:11,213 INFO L895 garLoopResultBuilder]: At program point L179(line 179) the Hoare annotation is: (let ((.cse0 (< ~waterLevel~0 1)) (.cse1 (not (= 1 ~systemActive~0)))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 .cse1) (or .cse0 .cse1 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= 1 |processEnvironment__wrappee__methaneQuery_~tmp~1#1|))))) [2023-12-19 23:40:11,213 INFO L899 garLoopResultBuilder]: For program point L177(lines 177 185) no Hoare annotation was computed. [2023-12-19 23:40:11,213 INFO L899 garLoopResultBuilder]: For program point L173(lines 173 190) no Hoare annotation was computed. [2023-12-19 23:40:11,213 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__methaneQueryEXIT(lines 169 193) no Hoare annotation was computed. [2023-12-19 23:40:11,213 INFO L899 garLoopResultBuilder]: For program point isMethaneAlarmEXIT(lines 253 263) no Hoare annotation was computed. [2023-12-19 23:40:11,214 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 253 263) the Hoare annotation is: true [2023-12-19 23:40:11,215 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 23:40:11,216 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-19 23:40:11,224 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.12 11:40:11 BoogieIcfgContainer [2023-12-19 23:40:11,224 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-19 23:40:11,225 INFO L158 Benchmark]: Toolchain (without parser) took 7158.92ms. Allocated memory was 260.0MB in the beginning and 314.6MB in the end (delta: 54.5MB). Free memory was 206.5MB in the beginning and 196.5MB in the end (delta: 10.0MB). Peak memory consumption was 66.1MB. Max. memory is 8.0GB. [2023-12-19 23:40:11,225 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 167.8MB. Free memory was 118.9MB in the beginning and 118.7MB in the end (delta: 139.9kB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-19 23:40:11,225 INFO L158 Benchmark]: CACSL2BoogieTranslator took 368.90ms. Allocated memory is still 260.0MB. Free memory was 206.0MB in the beginning and 186.0MB in the end (delta: 20.0MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. [2023-12-19 23:40:11,225 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.62ms. Allocated memory is still 260.0MB. Free memory was 186.0MB in the beginning and 184.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-19 23:40:11,225 INFO L158 Benchmark]: Boogie Preprocessor took 31.59ms. Allocated memory is still 260.0MB. Free memory was 184.0MB in the beginning and 181.3MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-19 23:40:11,225 INFO L158 Benchmark]: RCFGBuilder took 374.22ms. Allocated memory is still 260.0MB. Free memory was 181.3MB in the beginning and 157.7MB in the end (delta: 23.6MB). Peak memory consumption was 24.1MB. Max. memory is 8.0GB. [2023-12-19 23:40:11,226 INFO L158 Benchmark]: TraceAbstraction took 6309.20ms. Allocated memory was 260.0MB in the beginning and 314.6MB in the end (delta: 54.5MB). Free memory was 157.2MB in the beginning and 196.5MB in the end (delta: -39.3MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. [2023-12-19 23:40:11,226 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 167.8MB. Free memory was 118.9MB in the beginning and 118.7MB in the end (delta: 139.9kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 368.90ms. Allocated memory is still 260.0MB. Free memory was 206.0MB in the beginning and 186.0MB in the end (delta: 20.0MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 51.62ms. Allocated memory is still 260.0MB. Free memory was 186.0MB in the beginning and 184.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 31.59ms. Allocated memory is still 260.0MB. Free memory was 184.0MB in the beginning and 181.3MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 374.22ms. Allocated memory is still 260.0MB. Free memory was 181.3MB in the beginning and 157.7MB in the end (delta: 23.6MB). Peak memory consumption was 24.1MB. Max. memory is 8.0GB. * TraceAbstraction took 6309.20ms. Allocated memory was 260.0MB in the beginning and 314.6MB in the end (delta: 54.5MB). Free memory was 157.2MB in the beginning and 196.5MB in the end (delta: -39.3MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [49] - GenericResultAtLocation [Line: 58]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [58] - GenericResultAtLocation [Line: 96]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [96] - GenericResultAtLocation [Line: 347]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [347] - GenericResultAtLocation [Line: 415]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [415] - GenericResultAtLocation [Line: 519]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification4_spec.i","") [519] - GenericResultAtLocation [Line: 545]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [545] - GenericResultAtLocation [Line: 911]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [911] * 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: 54]: 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 10 procedures, 82 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 6.2s, OverallIterations: 12, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.1s, AutomataDifference: 1.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1175 SdHoareTripleChecker+Valid, 1.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1147 mSDsluCounter, 2553 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1620 mSDsCounter, 335 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1768 IncrementalHoareTripleChecker+Invalid, 2103 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 335 mSolverCounterUnsat, 933 mSDtfsCounter, 1768 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 801 GetRequests, 710 SyntacticMatches, 10 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 189 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=629occurred in iteration=11, InterpolantAutomatonStates: 86, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 12 MinimizatonAttempts, 103 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 27 LocationsWithAnnotation, 862 PreInvPairs, 903 NumberOfFragments, 503 HoareAnnotationTreeSize, 862 FormulaSimplifications, 653 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 27 FormulaSimplificationsInter, 1448 FormulaSimplificationTreeSizeReductionInter, 0.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 1145 NumberOfCodeBlocks, 1145 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 1209 ConstructedInterpolants, 0 QuantifiedInterpolants, 1985 SizeOfPredicates, 10 NumberOfNonLiveVariables, 1703 ConjunctsInSsa, 30 ConjunctsInUnsatCore, 18 InterpolantComputations, 11 PerfectInterpolantSequences, 460/516 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: 253]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 360]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 361]: Loop Invariant Derived loop invariant: ((((2 <= waterLevel) && (1 == systemActive)) && (splverifierCounter == 0)) || ((((pumpRunning == 0) && (1 == systemActive)) && (splverifierCounter == 0)) && (1 <= waterLevel))) - InvariantResult [Line: 923]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2023-12-19 23:40:11,246 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...