/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_spec2_product37.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-19 23:38:06,693 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-19 23:38:06,733 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 23:38:06,736 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-19 23:38:06,736 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-19 23:38:06,756 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-19 23:38:06,757 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-19 23:38:06,757 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-19 23:38:06,757 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-19 23:38:06,760 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-19 23:38:06,760 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-19 23:38:06,760 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-19 23:38:06,761 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-19 23:38:06,762 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-19 23:38:06,762 INFO L153 SettingsManager]: * Use SBE=true [2023-12-19 23:38:06,762 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-19 23:38:06,762 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-19 23:38:06,762 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-19 23:38:06,762 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-19 23:38:06,762 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-19 23:38:06,763 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-19 23:38:06,764 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-19 23:38:06,764 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-19 23:38:06,764 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-19 23:38:06,764 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-19 23:38:06,764 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-19 23:38:06,764 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-19 23:38:06,765 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-19 23:38:06,765 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-19 23:38:06,765 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-19 23:38:06,766 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-19 23:38:06,766 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-19 23:38:06,766 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-19 23:38:06,766 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-19 23:38:06,766 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-19 23:38:06,766 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-19 23:38:06,767 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-19 23:38:06,767 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-19 23:38:06,767 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-19 23:38:06,767 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-19 23:38:06,767 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-19 23:38:06,767 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-19 23:38:06,767 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-19 23:38:06,767 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-19 23:38:06,951 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-19 23:38:06,968 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-19 23:38:06,970 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-19 23:38:06,970 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-19 23:38:06,971 INFO L274 PluginConnector]: CDTParser initialized [2023-12-19 23:38:06,972 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product37.cil.c [2023-12-19 23:38:07,963 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-19 23:38:08,181 INFO L384 CDTParser]: Found 1 translation units. [2023-12-19 23:38:08,182 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product37.cil.c [2023-12-19 23:38:08,200 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0845eb1ca/66fd65843e20403b82e086e3a7c2d13e/FLAG5f39c4385 [2023-12-19 23:38:08,209 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0845eb1ca/66fd65843e20403b82e086e3a7c2d13e [2023-12-19 23:38:08,211 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-19 23:38:08,212 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-19 23:38:08,213 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-19 23:38:08,213 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-19 23:38:08,220 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-19 23:38:08,220 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 11:38:08" (1/1) ... [2023-12-19 23:38:08,221 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21102ef7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:38:08, skipping insertion in model container [2023-12-19 23:38:08,221 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 11:38:08" (1/1) ... [2023-12-19 23:38:08,252 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-19 23:38:08,380 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_spec2_product37.cil.c[7021,7034] [2023-12-19 23:38:08,463 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-19 23:38:08,478 INFO L202 MainTranslator]: Completed pre-run [2023-12-19 23:38:08,486 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [49] [2023-12-19 23:38:08,487 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [237] [2023-12-19 23:38:08,487 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [305] [2023-12-19 23:38:08,487 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [345] [2023-12-19 23:38:08,487 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [440] [2023-12-19 23:38:08,487 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [449] [2023-12-19 23:38:08,487 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [815] [2023-12-19 23:38:08,488 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [915] [2023-12-19 23:38:08,523 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_spec2_product37.cil.c[7021,7034] [2023-12-19 23:38:08,544 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-19 23:38:08,557 INFO L206 MainTranslator]: Completed translation [2023-12-19 23:38:08,557 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:38:08 WrapperNode [2023-12-19 23:38:08,557 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-19 23:38:08,558 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-19 23:38:08,558 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-19 23:38:08,558 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-19 23:38:08,562 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:38:08" (1/1) ... [2023-12-19 23:38:08,571 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:38:08" (1/1) ... [2023-12-19 23:38:08,596 INFO L138 Inliner]: procedures = 54, calls = 98, calls flagged for inlining = 22, calls inlined = 19, statements flattened = 194 [2023-12-19 23:38:08,612 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-19 23:38:08,613 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-19 23:38:08,613 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-19 23:38:08,613 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-19 23:38:08,622 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:38:08" (1/1) ... [2023-12-19 23:38:08,623 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:38:08" (1/1) ... [2023-12-19 23:38:08,625 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:38:08" (1/1) ... [2023-12-19 23:38:08,634 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 23:38:08,635 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:38:08" (1/1) ... [2023-12-19 23:38:08,635 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:38:08" (1/1) ... [2023-12-19 23:38:08,639 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:38:08" (1/1) ... [2023-12-19 23:38:08,642 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:38:08" (1/1) ... [2023-12-19 23:38:08,644 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:38:08" (1/1) ... [2023-12-19 23:38:08,645 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:38:08" (1/1) ... [2023-12-19 23:38:08,646 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-19 23:38:08,647 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-19 23:38:08,647 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-19 23:38:08,647 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-19 23:38:08,648 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:38:08" (1/1) ... [2023-12-19 23:38:08,651 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-19 23:38:08,661 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 23:38:08,672 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 23:38:08,679 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 23:38:08,693 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-19 23:38:08,693 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-12-19 23:38:08,693 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-12-19 23:38:08,693 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-12-19 23:38:08,693 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-12-19 23:38:08,693 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2023-12-19 23:38:08,693 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2023-12-19 23:38:08,693 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-12-19 23:38:08,693 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-12-19 23:38:08,694 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2023-12-19 23:38:08,694 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2023-12-19 23:38:08,694 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-12-19 23:38:08,694 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-12-19 23:38:08,694 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-19 23:38:08,694 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-12-19 23:38:08,694 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-12-19 23:38:08,694 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-19 23:38:08,694 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-19 23:38:08,756 INFO L241 CfgBuilder]: Building ICFG [2023-12-19 23:38:08,757 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-19 23:38:08,938 INFO L282 CfgBuilder]: Performing block encoding [2023-12-19 23:38:08,976 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-19 23:38:08,976 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-12-19 23:38:08,976 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 11:38:08 BoogieIcfgContainer [2023-12-19 23:38:08,976 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-19 23:38:08,978 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-19 23:38:08,978 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-19 23:38:08,980 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-19 23:38:08,980 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.12 11:38:08" (1/3) ... [2023-12-19 23:38:08,981 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1587cc24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 11:38:08, skipping insertion in model container [2023-12-19 23:38:08,981 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:38:08" (2/3) ... [2023-12-19 23:38:08,981 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1587cc24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 11:38:08, skipping insertion in model container [2023-12-19 23:38:08,981 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 11:38:08" (3/3) ... [2023-12-19 23:38:08,982 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product37.cil.c [2023-12-19 23:38:08,994 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-19 23:38:08,994 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-19 23:38:09,025 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-19 23:38:09,030 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;@556edbd1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-19 23:38:09,030 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-19 23:38:09,033 INFO L276 IsEmpty]: Start isEmpty. Operand has 68 states, 47 states have (on average 1.553191489361702) internal successors, (73), 55 states have internal predecessors, (73), 12 states have call successors, (12), 7 states have call predecessors, (12), 7 states have return successors, (12), 10 states have call predecessors, (12), 12 states have call successors, (12) [2023-12-19 23:38:09,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-12-19 23:38:09,039 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:38:09,039 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 23:38:09,039 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:38:09,043 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:38:09,043 INFO L85 PathProgramCache]: Analyzing trace with hash -1925508076, now seen corresponding path program 1 times [2023-12-19 23:38:09,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:38:09,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661275431] [2023-12-19 23:38:09,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:38:09,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:38:09,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:09,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-19 23:38:09,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:09,192 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 23:38:09,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:38:09,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661275431] [2023-12-19 23:38:09,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1661275431] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:38:09,193 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:38:09,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-19 23:38:09,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229747830] [2023-12-19 23:38:09,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:38:09,197 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-19 23:38:09,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:38:09,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-19 23:38:09,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-19 23:38:09,221 INFO L87 Difference]: Start difference. First operand has 68 states, 47 states have (on average 1.553191489361702) internal successors, (73), 55 states have internal predecessors, (73), 12 states have call successors, (12), 7 states have call predecessors, (12), 7 states have return successors, (12), 10 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-19 23:38:09,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:38:09,287 INFO L93 Difference]: Finished difference Result 134 states and 195 transitions. [2023-12-19 23:38:09,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-19 23:38:09,290 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2023-12-19 23:38:09,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:38:09,296 INFO L225 Difference]: With dead ends: 134 [2023-12-19 23:38:09,296 INFO L226 Difference]: Without dead ends: 63 [2023-12-19 23:38:09,299 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-19 23:38:09,301 INFO L413 NwaCegarLoop]: 79 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 79 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 23:38:09,302 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 79 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 23:38:09,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2023-12-19 23:38:09,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2023-12-19 23:38:09,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 44 states have (on average 1.4318181818181819) internal successors, (63), 51 states have internal predecessors, (63), 12 states have call successors, (12), 7 states have call predecessors, (12), 6 states have return successors, (11), 9 states have call predecessors, (11), 11 states have call successors, (11) [2023-12-19 23:38:09,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 86 transitions. [2023-12-19 23:38:09,334 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 86 transitions. Word has length 17 [2023-12-19 23:38:09,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:38:09,334 INFO L495 AbstractCegarLoop]: Abstraction has 63 states and 86 transitions. [2023-12-19 23:38:09,334 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-19 23:38:09,334 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 86 transitions. [2023-12-19 23:38:09,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-12-19 23:38:09,336 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:38:09,336 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 23:38:09,336 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-19 23:38:09,336 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:38:09,337 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:38:09,337 INFO L85 PathProgramCache]: Analyzing trace with hash -1781820203, now seen corresponding path program 1 times [2023-12-19 23:38:09,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:38:09,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569287736] [2023-12-19 23:38:09,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:38:09,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:38:09,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:09,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-19 23:38:09,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:09,417 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 23:38:09,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:38:09,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [569287736] [2023-12-19 23:38:09,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [569287736] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:38:09,418 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:38:09,418 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-19 23:38:09,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918205121] [2023-12-19 23:38:09,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:38:09,420 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 23:38:09,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:38:09,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 23:38:09,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 23:38:09,421 INFO L87 Difference]: Start difference. First operand 63 states and 86 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-19 23:38:09,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:38:09,448 INFO L93 Difference]: Finished difference Result 99 states and 135 transitions. [2023-12-19 23:38:09,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 23:38:09,448 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 18 [2023-12-19 23:38:09,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:38:09,451 INFO L225 Difference]: With dead ends: 99 [2023-12-19 23:38:09,451 INFO L226 Difference]: Without dead ends: 55 [2023-12-19 23:38:09,451 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 23:38:09,452 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 11 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 23:38:09,453 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 116 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 23:38:09,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2023-12-19 23:38:09,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2023-12-19 23:38:09,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 39 states have (on average 1.4615384615384615) internal successors, (57), 46 states have internal predecessors, (57), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 7 states have call predecessors, (9), 9 states have call successors, (9) [2023-12-19 23:38:09,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 75 transitions. [2023-12-19 23:38:09,460 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 75 transitions. Word has length 18 [2023-12-19 23:38:09,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:38:09,460 INFO L495 AbstractCegarLoop]: Abstraction has 55 states and 75 transitions. [2023-12-19 23:38:09,460 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-19 23:38:09,460 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 75 transitions. [2023-12-19 23:38:09,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-12-19 23:38:09,461 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:38:09,461 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] [2023-12-19 23:38:09,461 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-19 23:38:09,462 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:38:09,462 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:38:09,462 INFO L85 PathProgramCache]: Analyzing trace with hash -1993951259, now seen corresponding path program 1 times [2023-12-19 23:38:09,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:38:09,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902209391] [2023-12-19 23:38:09,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:38:09,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:38:09,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:09,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-19 23:38:09,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:09,544 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 23:38:09,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:38:09,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902209391] [2023-12-19 23:38:09,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [902209391] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:38:09,545 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:38:09,545 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-19 23:38:09,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214794410] [2023-12-19 23:38:09,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:38:09,546 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 23:38:09,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:38:09,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 23:38:09,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 23:38:09,547 INFO L87 Difference]: Start difference. First operand 55 states and 75 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-19 23:38:09,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:38:09,574 INFO L93 Difference]: Finished difference Result 108 states and 149 transitions. [2023-12-19 23:38:09,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 23:38:09,575 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 21 [2023-12-19 23:38:09,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:38:09,576 INFO L225 Difference]: With dead ends: 108 [2023-12-19 23:38:09,576 INFO L226 Difference]: Without dead ends: 55 [2023-12-19 23:38:09,576 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 23:38:09,580 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 63 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 23:38:09,580 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 63 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 23:38:09,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2023-12-19 23:38:09,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2023-12-19 23:38:09,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 39 states have (on average 1.435897435897436) internal successors, (56), 46 states have internal predecessors, (56), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 7 states have call predecessors, (9), 9 states have call successors, (9) [2023-12-19 23:38:09,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 74 transitions. [2023-12-19 23:38:09,592 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 74 transitions. Word has length 21 [2023-12-19 23:38:09,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:38:09,593 INFO L495 AbstractCegarLoop]: Abstraction has 55 states and 74 transitions. [2023-12-19 23:38:09,593 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-19 23:38:09,593 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 74 transitions. [2023-12-19 23:38:09,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-12-19 23:38:09,594 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:38:09,594 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 23:38:09,594 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-19 23:38:09,594 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:38:09,595 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:38:09,595 INFO L85 PathProgramCache]: Analyzing trace with hash 273858055, now seen corresponding path program 1 times [2023-12-19 23:38:09,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:38:09,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956588258] [2023-12-19 23:38:09,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:38:09,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:38:09,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:09,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-19 23:38:09,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:09,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 23:38:09,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:09,636 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-19 23:38:09,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:38:09,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956588258] [2023-12-19 23:38:09,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1956588258] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:38:09,636 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:38:09,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-19 23:38:09,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065487092] [2023-12-19 23:38:09,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:38:09,637 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 23:38:09,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:38:09,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 23:38:09,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 23:38:09,638 INFO L87 Difference]: Start difference. First operand 55 states and 74 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (3), 1 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 23:38:09,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:38:09,682 INFO L93 Difference]: Finished difference Result 147 states and 201 transitions. [2023-12-19 23:38:09,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 23:38:09,683 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (3), 1 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 28 [2023-12-19 23:38:09,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:38:09,685 INFO L225 Difference]: With dead ends: 147 [2023-12-19 23:38:09,687 INFO L226 Difference]: Without dead ends: 94 [2023-12-19 23:38:09,688 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 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 23:38:09,689 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 57 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 23:38:09,689 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 125 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 23:38:09,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2023-12-19 23:38:09,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 92. [2023-12-19 23:38:09,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 66 states have (on average 1.393939393939394) internal successors, (92), 73 states have internal predecessors, (92), 13 states have call successors, (13), 12 states have call predecessors, (13), 12 states have return successors, (17), 13 states have call predecessors, (17), 13 states have call successors, (17) [2023-12-19 23:38:09,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 122 transitions. [2023-12-19 23:38:09,699 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 122 transitions. Word has length 28 [2023-12-19 23:38:09,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:38:09,699 INFO L495 AbstractCegarLoop]: Abstraction has 92 states and 122 transitions. [2023-12-19 23:38:09,700 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (3), 1 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 23:38:09,700 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 122 transitions. [2023-12-19 23:38:09,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-12-19 23:38:09,700 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:38:09,700 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] [2023-12-19 23:38:09,701 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-19 23:38:09,701 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:38:09,701 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:38:09,701 INFO L85 PathProgramCache]: Analyzing trace with hash -1923035712, now seen corresponding path program 1 times [2023-12-19 23:38:09,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:38:09,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565678967] [2023-12-19 23:38:09,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:38:09,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:38:09,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:09,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-19 23:38:09,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:09,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-19 23:38:09,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:09,821 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 23:38:09,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:38:09,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [565678967] [2023-12-19 23:38:09,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [565678967] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:38:09,822 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:38:09,822 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-19 23:38:09,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106782755] [2023-12-19 23:38:09,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:38:09,823 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-19 23:38:09,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:38:09,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-19 23:38:09,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-19 23:38:09,824 INFO L87 Difference]: Start difference. First operand 92 states and 122 transitions. Second operand has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-19 23:38:10,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:38:10,046 INFO L93 Difference]: Finished difference Result 291 states and 408 transitions. [2023-12-19 23:38:10,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-19 23:38:10,047 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 33 [2023-12-19 23:38:10,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:38:10,050 INFO L225 Difference]: With dead ends: 291 [2023-12-19 23:38:10,050 INFO L226 Difference]: Without dead ends: 201 [2023-12-19 23:38:10,052 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2023-12-19 23:38:10,055 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 120 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 248 SdHoareTripleChecker+Invalid, 213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 23:38:10,056 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 248 Invalid, 213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 23:38:10,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2023-12-19 23:38:10,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 186. [2023-12-19 23:38:10,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 136 states have (on average 1.375) internal successors, (187), 145 states have internal predecessors, (187), 25 states have call successors, (25), 22 states have call predecessors, (25), 24 states have return successors, (39), 25 states have call predecessors, (39), 25 states have call successors, (39) [2023-12-19 23:38:10,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 251 transitions. [2023-12-19 23:38:10,076 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 251 transitions. Word has length 33 [2023-12-19 23:38:10,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:38:10,076 INFO L495 AbstractCegarLoop]: Abstraction has 186 states and 251 transitions. [2023-12-19 23:38:10,077 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-19 23:38:10,077 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 251 transitions. [2023-12-19 23:38:10,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-12-19 23:38:10,077 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:38:10,078 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] [2023-12-19 23:38:10,078 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-19 23:38:10,078 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:38:10,078 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:38:10,078 INFO L85 PathProgramCache]: Analyzing trace with hash -334687810, now seen corresponding path program 1 times [2023-12-19 23:38:10,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:38:10,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219503677] [2023-12-19 23:38:10,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:38:10,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:38:10,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:10,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-19 23:38:10,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:10,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-19 23:38:10,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:10,154 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 23:38:10,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:38:10,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219503677] [2023-12-19 23:38:10,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [219503677] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:38:10,155 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:38:10,155 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-19 23:38:10,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632710176] [2023-12-19 23:38:10,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:38:10,156 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-19 23:38:10,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:38:10,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-19 23:38:10,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-19 23:38:10,157 INFO L87 Difference]: Start difference. First operand 186 states and 251 transitions. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 1 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 23:38:10,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:38:10,271 INFO L93 Difference]: Finished difference Result 372 states and 529 transitions. [2023-12-19 23:38:10,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-19 23:38:10,272 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 1 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 33 [2023-12-19 23:38:10,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:38:10,277 INFO L225 Difference]: With dead ends: 372 [2023-12-19 23:38:10,277 INFO L226 Difference]: Without dead ends: 370 [2023-12-19 23:38:10,278 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 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 23:38:10,280 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 115 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 23:38:10,281 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 128 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 23:38:10,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2023-12-19 23:38:10,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 368. [2023-12-19 23:38:10,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 368 states, 269 states have (on average 1.3568773234200744) internal successors, (365), 286 states have internal predecessors, (365), 50 states have call successors, (50), 44 states have call predecessors, (50), 48 states have return successors, (106), 50 states have call predecessors, (106), 50 states have call successors, (106) [2023-12-19 23:38:10,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 368 states to 368 states and 521 transitions. [2023-12-19 23:38:10,330 INFO L78 Accepts]: Start accepts. Automaton has 368 states and 521 transitions. Word has length 33 [2023-12-19 23:38:10,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:38:10,330 INFO L495 AbstractCegarLoop]: Abstraction has 368 states and 521 transitions. [2023-12-19 23:38:10,330 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 1 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 23:38:10,330 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 521 transitions. [2023-12-19 23:38:10,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-12-19 23:38:10,335 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:38:10,336 INFO L195 NwaCegarLoop]: trace histogram [3, 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] [2023-12-19 23:38:10,336 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-19 23:38:10,336 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:38:10,336 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:38:10,336 INFO L85 PathProgramCache]: Analyzing trace with hash -118482004, now seen corresponding path program 1 times [2023-12-19 23:38:10,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:38:10,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212332263] [2023-12-19 23:38:10,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:38:10,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:38:10,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:10,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-19 23:38:10,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:10,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-19 23:38:10,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:10,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-19 23:38:10,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:10,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-19 23:38:10,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:10,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-19 23:38:10,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:10,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-12-19 23:38:10,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:10,426 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-19 23:38:10,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:38:10,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212332263] [2023-12-19 23:38:10,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1212332263] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 23:38:10,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [353329834] [2023-12-19 23:38:10,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:38:10,427 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 23:38:10,427 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 23:38:10,429 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 23:38:10,443 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 23:38:10,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:10,529 INFO L262 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-19 23:38:10,535 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 23:38:10,577 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-12-19 23:38:10,577 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 23:38:10,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [353329834] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:38:10,579 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 23:38:10,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 7 [2023-12-19 23:38:10,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070769540] [2023-12-19 23:38:10,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:38:10,579 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-19 23:38:10,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:38:10,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-19 23:38:10,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-12-19 23:38:10,580 INFO L87 Difference]: Start difference. First operand 368 states and 521 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-12-19 23:38:10,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:38:10,667 INFO L93 Difference]: Finished difference Result 694 states and 980 transitions. [2023-12-19 23:38:10,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-19 23:38:10,668 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 66 [2023-12-19 23:38:10,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:38:10,671 INFO L225 Difference]: With dead ends: 694 [2023-12-19 23:38:10,671 INFO L226 Difference]: Without dead ends: 328 [2023-12-19 23:38:10,672 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-12-19 23:38:10,673 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 49 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 189 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 23:38:10,673 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 189 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 23:38:10,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328 states. [2023-12-19 23:38:10,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328 to 300. [2023-12-19 23:38:10,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 300 states, 218 states have (on average 1.334862385321101) internal successors, (291), 233 states have internal predecessors, (291), 41 states have call successors, (41), 36 states have call predecessors, (41), 40 states have return successors, (79), 40 states have call predecessors, (79), 41 states have call successors, (79) [2023-12-19 23:38:10,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 411 transitions. [2023-12-19 23:38:10,696 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 411 transitions. Word has length 66 [2023-12-19 23:38:10,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:38:10,697 INFO L495 AbstractCegarLoop]: Abstraction has 300 states and 411 transitions. [2023-12-19 23:38:10,697 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-12-19 23:38:10,697 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 411 transitions. [2023-12-19 23:38:10,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-12-19 23:38:10,700 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:38:10,700 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 23:38:10,705 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 23:38:10,905 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 23:38:10,906 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:38:10,906 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:38:10,906 INFO L85 PathProgramCache]: Analyzing trace with hash -950963584, now seen corresponding path program 1 times [2023-12-19 23:38:10,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:38:10,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1381634092] [2023-12-19 23:38:10,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:38:10,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:38:10,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:10,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-19 23:38:10,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:11,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-19 23:38:11,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:11,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-19 23:38:11,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:11,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-19 23:38:11,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:11,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-19 23:38:11,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:11,024 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 10 proven. 11 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-12-19 23:38:11,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:38:11,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1381634092] [2023-12-19 23:38:11,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1381634092] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 23:38:11,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2051831368] [2023-12-19 23:38:11,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:38:11,024 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 23:38:11,025 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 23:38:11,025 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 23:38:11,060 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 23:38:11,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:11,124 INFO L262 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-19 23:38:11,127 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 23:38:11,170 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 23:38:11,171 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 23:38:11,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2051831368] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:38:11,171 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 23:38:11,171 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 7 [2023-12-19 23:38:11,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975003903] [2023-12-19 23:38:11,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:38:11,172 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 23:38:11,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:38:11,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 23:38:11,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-12-19 23:38:11,173 INFO L87 Difference]: Start difference. First operand 300 states and 411 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 3 states have call successors, (5) [2023-12-19 23:38:11,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:38:11,204 INFO L93 Difference]: Finished difference Result 546 states and 756 transitions. [2023-12-19 23:38:11,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 23:38:11,205 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 3 states have call successors, (5) Word has length 65 [2023-12-19 23:38:11,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:38:11,206 INFO L225 Difference]: With dead ends: 546 [2023-12-19 23:38:11,206 INFO L226 Difference]: Without dead ends: 248 [2023-12-19 23:38:11,207 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-12-19 23:38:11,208 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 36 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 23:38:11,208 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 132 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 23:38:11,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2023-12-19 23:38:11,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 248. [2023-12-19 23:38:11,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 248 states, 179 states have (on average 1.3016759776536313) internal successors, (233), 192 states have internal predecessors, (233), 35 states have call successors, (35), 31 states have call predecessors, (35), 33 states have return successors, (49), 34 states have call predecessors, (49), 35 states have call successors, (49) [2023-12-19 23:38:11,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 317 transitions. [2023-12-19 23:38:11,223 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 317 transitions. Word has length 65 [2023-12-19 23:38:11,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:38:11,224 INFO L495 AbstractCegarLoop]: Abstraction has 248 states and 317 transitions. [2023-12-19 23:38:11,225 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 3 states have call successors, (5) [2023-12-19 23:38:11,225 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 317 transitions. [2023-12-19 23:38:11,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-12-19 23:38:11,226 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:38:11,226 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 23:38:11,234 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 23:38:11,436 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,SelfDestructingSolverStorable7 [2023-12-19 23:38:11,437 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:38:11,437 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:38:11,437 INFO L85 PathProgramCache]: Analyzing trace with hash -1166265240, now seen corresponding path program 1 times [2023-12-19 23:38:11,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:38:11,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098192566] [2023-12-19 23:38:11,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:38:11,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:38:11,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:11,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-19 23:38:11,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:11,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-19 23:38:11,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:11,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-19 23:38:11,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:11,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-12-19 23:38:11,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:11,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-19 23:38:11,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:11,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 23:38:11,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:11,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 23:38:11,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:11,562 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 11 proven. 2 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-12-19 23:38:11,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:38:11,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098192566] [2023-12-19 23:38:11,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1098192566] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 23:38:11,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1090711313] [2023-12-19 23:38:11,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:38:11,563 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 23:38:11,563 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 23:38:11,564 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 23:38:11,567 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 23:38:11,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:11,634 INFO L262 TraceCheckSpWp]: Trace formula consists of 278 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-19 23:38:11,637 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 23:38:11,648 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-12-19 23:38:11,648 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 23:38:11,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1090711313] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:38:11,649 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 23:38:11,649 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 6 [2023-12-19 23:38:11,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437495215] [2023-12-19 23:38:11,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:38:11,649 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-19 23:38:11,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:38:11,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-19 23:38:11,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-19 23:38:11,650 INFO L87 Difference]: Start difference. First operand 248 states and 317 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 2 states have call successors, (6) [2023-12-19 23:38:11,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:38:11,681 INFO L93 Difference]: Finished difference Result 457 states and 591 transitions. [2023-12-19 23:38:11,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-19 23:38:11,681 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 2 states have call successors, (6) Word has length 70 [2023-12-19 23:38:11,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:38:11,682 INFO L225 Difference]: With dead ends: 457 [2023-12-19 23:38:11,682 INFO L226 Difference]: Without dead ends: 252 [2023-12-19 23:38:11,683 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 85 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 23:38:11,684 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 2 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 189 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 23:38:11,685 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 189 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 23:38:11,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2023-12-19 23:38:11,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 252. [2023-12-19 23:38:11,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 252 states, 183 states have (on average 1.2950819672131149) internal successors, (237), 196 states have internal predecessors, (237), 35 states have call successors, (35), 31 states have call predecessors, (35), 33 states have return successors, (49), 34 states have call predecessors, (49), 35 states have call successors, (49) [2023-12-19 23:38:11,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 321 transitions. [2023-12-19 23:38:11,700 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 321 transitions. Word has length 70 [2023-12-19 23:38:11,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:38:11,700 INFO L495 AbstractCegarLoop]: Abstraction has 252 states and 321 transitions. [2023-12-19 23:38:11,700 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 2 states have call successors, (6) [2023-12-19 23:38:11,700 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 321 transitions. [2023-12-19 23:38:11,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-12-19 23:38:11,702 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:38:11,702 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 23:38:11,710 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-19 23:38:11,908 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 23:38:11,909 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:38:11,909 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:38:11,909 INFO L85 PathProgramCache]: Analyzing trace with hash 372074790, now seen corresponding path program 1 times [2023-12-19 23:38:11,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:38:11,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660199188] [2023-12-19 23:38:11,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:38:11,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:38:11,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:11,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-19 23:38:11,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:11,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-19 23:38:11,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:12,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-19 23:38:12,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:12,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-12-19 23:38:12,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:12,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-19 23:38:12,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:12,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 23:38:12,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:12,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 23:38:12,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:12,020 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 11 proven. 2 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-12-19 23:38:12,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:38:12,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660199188] [2023-12-19 23:38:12,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [660199188] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 23:38:12,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [974615100] [2023-12-19 23:38:12,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:38:12,021 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 23:38:12,021 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 23:38:12,037 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 23:38:12,037 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 23:38:12,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:12,107 INFO L262 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-19 23:38:12,114 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 23:38:12,135 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-12-19 23:38:12,135 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 23:38:12,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [974615100] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:38:12,136 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 23:38:12,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 9 [2023-12-19 23:38:12,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804975101] [2023-12-19 23:38:12,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:38:12,136 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-19 23:38:12,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:38:12,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-19 23:38:12,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-12-19 23:38:12,137 INFO L87 Difference]: Start difference. First operand 252 states and 321 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 2 states have call successors, (6) [2023-12-19 23:38:12,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:38:12,170 INFO L93 Difference]: Finished difference Result 454 states and 582 transitions. [2023-12-19 23:38:12,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-19 23:38:12,171 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 2 states have call successors, (6) Word has length 70 [2023-12-19 23:38:12,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:38:12,172 INFO L225 Difference]: With dead ends: 454 [2023-12-19 23:38:12,172 INFO L226 Difference]: Without dead ends: 204 [2023-12-19 23:38:12,172 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2023-12-19 23:38:12,173 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 6 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 23:38:12,174 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 181 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 23:38:12,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2023-12-19 23:38:12,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 201. [2023-12-19 23:38:12,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 145 states have (on average 1.2689655172413794) internal successors, (184), 156 states have internal predecessors, (184), 28 states have call successors, (28), 24 states have call predecessors, (28), 27 states have return successors, (35), 28 states have call predecessors, (35), 28 states have call successors, (35) [2023-12-19 23:38:12,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 247 transitions. [2023-12-19 23:38:12,184 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 247 transitions. Word has length 70 [2023-12-19 23:38:12,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:38:12,184 INFO L495 AbstractCegarLoop]: Abstraction has 201 states and 247 transitions. [2023-12-19 23:38:12,185 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 2 states have call successors, (6) [2023-12-19 23:38:12,185 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 247 transitions. [2023-12-19 23:38:12,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-12-19 23:38:12,185 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:38:12,185 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 23:38:12,193 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 23:38:12,391 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 23:38:12,391 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:38:12,392 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:38:12,392 INFO L85 PathProgramCache]: Analyzing trace with hash 755904010, now seen corresponding path program 1 times [2023-12-19 23:38:12,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:38:12,392 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114090283] [2023-12-19 23:38:12,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:38:12,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:38:12,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:12,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-19 23:38:12,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:12,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-19 23:38:12,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:12,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-19 23:38:12,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:12,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-19 23:38:12,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:12,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-19 23:38:12,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:12,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 23:38:12,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:12,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 23:38:12,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:12,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-12-19 23:38:12,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:12,507 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 18 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-12-19 23:38:12,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:38:12,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [114090283] [2023-12-19 23:38:12,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [114090283] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 23:38:12,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1676733247] [2023-12-19 23:38:12,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:38:12,507 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 23:38:12,507 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 23:38:12,508 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 23:38:12,511 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 23:38:12,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:12,577 INFO L262 TraceCheckSpWp]: Trace formula consists of 288 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-19 23:38:12,580 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 23:38:12,662 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-19 23:38:12,662 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 23:38:12,735 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-19 23:38:12,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1676733247] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-19 23:38:12,735 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-12-19 23:38:12,735 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10, 5] total 14 [2023-12-19 23:38:12,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548509407] [2023-12-19 23:38:12,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:38:12,736 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-19 23:38:12,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:38:12,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-19 23:38:12,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2023-12-19 23:38:12,737 INFO L87 Difference]: Start difference. First operand 201 states and 247 transitions. Second operand has 6 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-19 23:38:12,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:38:12,817 INFO L93 Difference]: Finished difference Result 578 states and 724 transitions. [2023-12-19 23:38:12,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-19 23:38:12,817 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) Word has length 74 [2023-12-19 23:38:12,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:38:12,819 INFO L225 Difference]: With dead ends: 578 [2023-12-19 23:38:12,819 INFO L226 Difference]: Without dead ends: 379 [2023-12-19 23:38:12,819 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 156 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2023-12-19 23:38:12,820 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 43 mSDsluCounter, 244 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 314 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 23:38:12,820 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 314 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 23:38:12,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2023-12-19 23:38:12,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 372. [2023-12-19 23:38:12,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 372 states, 266 states have (on average 1.2293233082706767) internal successors, (327), 285 states have internal predecessors, (327), 54 states have call successors, (54), 46 states have call predecessors, (54), 51 states have return successors, (69), 53 states have call predecessors, (69), 54 states have call successors, (69) [2023-12-19 23:38:12,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 372 states and 450 transitions. [2023-12-19 23:38:12,835 INFO L78 Accepts]: Start accepts. Automaton has 372 states and 450 transitions. Word has length 74 [2023-12-19 23:38:12,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:38:12,835 INFO L495 AbstractCegarLoop]: Abstraction has 372 states and 450 transitions. [2023-12-19 23:38:12,835 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-19 23:38:12,835 INFO L276 IsEmpty]: Start isEmpty. Operand 372 states and 450 transitions. [2023-12-19 23:38:12,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-12-19 23:38:12,839 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:38:12,839 INFO L195 NwaCegarLoop]: trace histogram [3, 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] [2023-12-19 23:38:12,844 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-12-19 23:38:13,044 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,SelfDestructingSolverStorable10 [2023-12-19 23:38:13,045 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:38:13,045 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:38:13,045 INFO L85 PathProgramCache]: Analyzing trace with hash 1367833454, now seen corresponding path program 1 times [2023-12-19 23:38:13,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:38:13,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722901785] [2023-12-19 23:38:13,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:38:13,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:38:13,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:13,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-19 23:38:13,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:13,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-12-19 23:38:13,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:13,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-19 23:38:13,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:13,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-19 23:38:13,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:13,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-19 23:38:13,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:13,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-12-19 23:38:13,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:13,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-12-19 23:38:13,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:13,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 23:38:13,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:13,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-12-19 23:38:13,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:13,169 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 15 proven. 2 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-12-19 23:38:13,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:38:13,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722901785] [2023-12-19 23:38:13,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [722901785] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 23:38:13,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [923212636] [2023-12-19 23:38:13,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:38:13,170 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 23:38:13,170 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 23:38:13,171 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 23:38:13,196 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-19 23:38:13,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:13,230 INFO L262 TraceCheckSpWp]: Trace formula consists of 298 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-19 23:38:13,232 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 23:38:13,293 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-12-19 23:38:13,293 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 23:38:13,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [923212636] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:38:13,293 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 23:38:13,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 13 [2023-12-19 23:38:13,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926899126] [2023-12-19 23:38:13,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:38:13,294 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-19 23:38:13,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:38:13,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-19 23:38:13,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2023-12-19 23:38:13,295 INFO L87 Difference]: Start difference. First operand 372 states and 450 transitions. Second operand has 6 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 3 states have call successors, (9), 3 states have call predecessors, (9), 4 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) [2023-12-19 23:38:13,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:38:13,370 INFO L93 Difference]: Finished difference Result 704 states and 857 transitions. [2023-12-19 23:38:13,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-19 23:38:13,370 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 3 states have call successors, (9), 3 states have call predecessors, (9), 4 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) Word has length 78 [2023-12-19 23:38:13,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:38:13,371 INFO L225 Difference]: With dead ends: 704 [2023-12-19 23:38:13,371 INFO L226 Difference]: Without dead ends: 0 [2023-12-19 23:38:13,372 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2023-12-19 23:38:13,372 INFO L413 NwaCegarLoop]: 111 mSDtfsCounter, 23 mSDsluCounter, 367 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 478 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 23:38:13,372 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 478 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 23:38:13,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-19 23:38:13,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-19 23:38:13,373 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 23:38:13,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-19 23:38:13,373 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 78 [2023-12-19 23:38:13,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:38:13,373 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-19 23:38:13,373 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 3 states have call successors, (9), 3 states have call predecessors, (9), 4 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) [2023-12-19 23:38:13,373 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-19 23:38:13,373 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-19 23:38:13,375 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-19 23:38:13,383 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-12-19 23:38:13,581 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 23:38:13,582 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-19 23:38:14,734 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 87 93) no Hoare annotation was computed. [2023-12-19 23:38:14,735 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 87 93) the Hoare annotation is: true [2023-12-19 23:38:14,735 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 373 384) the Hoare annotation is: (let ((.cse0 (< ~pumpRunning~0 1)) (.cse4 (not (= |old(~methaneLevelCritical~0)| 0))) (.cse6 (= ~methaneLevelCritical~0 0)) (.cse1 (<= 1 ~methaneLevelCritical~0)) (.cse5 (not (= ~pumpRunning~0 0))) (.cse2 (not (= 1 ~systemActive~0))) (.cse3 (< |old(~methaneLevelCritical~0)| 1)) (.cse7 (not (= ~methAndRunningLastTime~0 0)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse5 .cse6 .cse2 .cse7) (or .cse0 .cse4 .cse6 .cse2 .cse7) (or .cse1 .cse5 .cse2 .cse3 .cse7))) [2023-12-19 23:38:14,735 INFO L899 garLoopResultBuilder]: For program point L377-1(lines 373 384) no Hoare annotation was computed. [2023-12-19 23:38:14,735 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 373 384) no Hoare annotation was computed. [2023-12-19 23:38:14,735 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 817 846) no Hoare annotation was computed. [2023-12-19 23:38:14,735 INFO L899 garLoopResultBuilder]: For program point L831(lines 831 835) no Hoare annotation was computed. [2023-12-19 23:38:14,735 INFO L902 garLoopResultBuilder]: At program point L831-1(lines 831 835) the Hoare annotation is: true [2023-12-19 23:38:14,735 INFO L902 garLoopResultBuilder]: At program point L827-2(lines 827 841) the Hoare annotation is: true [2023-12-19 23:38:14,735 INFO L902 garLoopResultBuilder]: At program point L823(line 823) the Hoare annotation is: true [2023-12-19 23:38:14,735 INFO L899 garLoopResultBuilder]: For program point L823-1(line 823) no Hoare annotation was computed. [2023-12-19 23:38:14,735 INFO L899 garLoopResultBuilder]: For program point L842(lines 817 846) no Hoare annotation was computed. [2023-12-19 23:38:14,736 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 817 846) the Hoare annotation is: true [2023-12-19 23:38:14,736 INFO L899 garLoopResultBuilder]: For program point L838(line 838) no Hoare annotation was computed. [2023-12-19 23:38:14,736 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 385 393) the Hoare annotation is: true [2023-12-19 23:38:14,736 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 385 393) no Hoare annotation was computed. [2023-12-19 23:38:14,736 INFO L899 garLoopResultBuilder]: For program point L353(lines 353 357) no Hoare annotation was computed. [2023-12-19 23:38:14,736 INFO L899 garLoopResultBuilder]: For program point L353-2(lines 349 360) no Hoare annotation was computed. [2023-12-19 23:38:14,736 INFO L899 garLoopResultBuilder]: For program point L329(lines 329 335) no Hoare annotation was computed. [2023-12-19 23:38:14,736 INFO L895 garLoopResultBuilder]: At program point L135(line 135) the Hoare annotation is: (let ((.cse1 (not (= ~methaneLevelCritical~0 0))) (.cse2 (< |old(~pumpRunning~0)| 1)) (.cse4 (not (= |old(~pumpRunning~0)| 0))) (.cse5 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse0 (not (= 1 ~systemActive~0))) (.cse3 (< ~methaneLevelCritical~0 1))) (and (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0 .cse1 .cse2) (or .cse0 .cse2 .cse3) (or .cse4 .cse5 .cse0 .cse1) (or .cse5 (= ~methAndRunningLastTime~0 0) .cse0 .cse1 .cse2) (or .cse4 .cse5 .cse0 .cse3))) [2023-12-19 23:38:14,736 INFO L899 garLoopResultBuilder]: For program point L445(line 445) no Hoare annotation was computed. [2023-12-19 23:38:14,736 INFO L895 garLoopResultBuilder]: At program point L140(line 140) the Hoare annotation is: (let ((.cse2 (< |old(~pumpRunning~0)| 1)) (.cse6 (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0))) (.cse1 (not (= ~methaneLevelCritical~0 0))) (.cse4 (not (= |old(~pumpRunning~0)| 0))) (.cse5 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse7 (not (= |old(~waterLevel~0)| 1))) (.cse0 (not (= 1 ~systemActive~0))) (.cse8 (= ~waterLevel~0 1)) (.cse3 (< ~methaneLevelCritical~0 1))) (and (or .cse0 .cse1 .cse2) (or .cse0 .cse2 .cse3) (or .cse4 .cse5 .cse0 .cse3 .cse6) (or .cse4 .cse5 .cse0 .cse1 .cse6) (or .cse4 .cse5 .cse7 .cse0 .cse1 .cse8) (or .cse4 .cse5 .cse7 .cse0 .cse8 .cse3))) [2023-12-19 23:38:14,736 INFO L899 garLoopResultBuilder]: For program point L140-1(lines 121 145) no Hoare annotation was computed. [2023-12-19 23:38:14,736 INFO L899 garLoopResultBuilder]: For program point L74-1(lines 74 80) no Hoare annotation was computed. [2023-12-19 23:38:14,737 INFO L895 garLoopResultBuilder]: At program point L322(line 322) the Hoare annotation is: (let ((.cse11 (= ~methAndRunningLastTime~0 0)) (.cse14 (= ~methaneLevelCritical~0 0)) (.cse9 (= ~pumpRunning~0 0)) (.cse10 (= 1 ~systemActive~0)) (.cse15 (= |old(~pumpRunning~0)| 0))) (let ((.cse5 (< ~methaneLevelCritical~0 1)) (.cse2 (not (= |old(~waterLevel~0)| 1))) (.cse4 (and .cse9 .cse10 .cse15 (= ~waterLevel~0 1))) (.cse12 (and .cse9 .cse14 .cse10)) (.cse8 (< |old(~pumpRunning~0)| 1)) (.cse6 (and .cse9 .cse10 .cse15)) (.cse0 (not .cse15)) (.cse7 (and (<= 1 ~pumpRunning~0) .cse11)) (.cse1 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse3 (not .cse10)) (.cse13 (not .cse14))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (or .cse6 .cse0 .cse7 .cse1 .cse3 .cse5) (or .cse3 .cse8 (and .cse9 .cse10) .cse5) (or .cse1 .cse11 .cse3 .cse12 .cse13 .cse8) (or .cse0 .cse1 .cse2 .cse3 .cse13 .cse4) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse3 .cse12 .cse13 .cse8) (or .cse6 .cse0 .cse7 .cse1 .cse3 .cse13)))) [2023-12-19 23:38:14,737 INFO L899 garLoopResultBuilder]: For program point L322-1(line 322) no Hoare annotation was computed. [2023-12-19 23:38:14,737 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 63 86) the Hoare annotation is: (let ((.cse6 (= ~methAndRunningLastTime~0 0))) (let ((.cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse8 (and (= ~pumpRunning~0 0) .cse6)) (.cse2 (not (= ~methaneLevelCritical~0 0))) (.cse3 (< |old(~pumpRunning~0)| 1)) (.cse7 (not (= |old(~pumpRunning~0)| 0))) (.cse5 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse9 (not (= |old(~waterLevel~0)| 1))) (.cse1 (not (= 1 ~systemActive~0))) (.cse10 (= ~waterLevel~0 1)) (.cse4 (< ~methaneLevelCritical~0 1))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse1 .cse3 .cse4) (or .cse5 .cse6 .cse1 .cse3 .cse4) (or .cse7 .cse5 .cse1 .cse4 .cse8) (or .cse7 .cse5 .cse1 .cse2 .cse8) (or .cse7 .cse5 .cse9 .cse1 .cse2 .cse10) (or .cse5 .cse6 .cse1 .cse2 .cse3) (or .cse7 .cse5 .cse9 .cse1 .cse10 .cse4)))) [2023-12-19 23:38:14,737 INFO L899 garLoopResultBuilder]: For program point L67-1(lines 66 85) no Hoare annotation was computed. [2023-12-19 23:38:14,737 INFO L899 garLoopResultBuilder]: For program point L129(lines 129 137) no Hoare annotation was computed. [2023-12-19 23:38:14,737 INFO L899 garLoopResultBuilder]: For program point L125(lines 125 142) no Hoare annotation was computed. [2023-12-19 23:38:14,737 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 63 86) no Hoare annotation was computed. [2023-12-19 23:38:14,737 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 445) no Hoare annotation was computed. [2023-12-19 23:38:14,737 INFO L899 garLoopResultBuilder]: For program point L328(lines 328 338) no Hoare annotation was computed. [2023-12-19 23:38:14,738 INFO L895 garLoopResultBuilder]: At program point L167(line 167) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse7 (= ~methAndRunningLastTime~0 0)) (.cse2 (not (= ~methaneLevelCritical~0 0))) (.cse3 (< |old(~pumpRunning~0)| 1)) (.cse5 (not (= |old(~pumpRunning~0)| 0))) (.cse6 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse4 (< ~methaneLevelCritical~0 1))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse1 .cse3 .cse4) (or .cse5 .cse6 .cse1 .cse2) (or .cse6 .cse7 .cse1 .cse3 .cse4) (or .cse6 .cse7 .cse1 .cse2 .cse3) (or .cse5 .cse6 .cse1 .cse4))) [2023-12-19 23:38:14,738 INFO L899 garLoopResultBuilder]: For program point L167-1(line 167) no Hoare annotation was computed. [2023-12-19 23:38:14,738 INFO L899 garLoopResultBuilder]: For program point L324(lines 324 341) no Hoare annotation was computed. [2023-12-19 23:38:14,738 INFO L899 garLoopResultBuilder]: For program point L324-1(lines 316 344) no Hoare annotation was computed. [2023-12-19 23:38:14,738 INFO L899 garLoopResultBuilder]: For program point L287(lines 287 291) no Hoare annotation was computed. [2023-12-19 23:38:14,738 INFO L895 garLoopResultBuilder]: At program point L287-2(lines 281 292) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= ~methAndRunningLastTime~0 0)) (.cse5 (= ~methaneLevelCritical~0 0)) (.cse6 (<= 1 ~pumpRunning~0)) (.cse2 (<= 1 ~methaneLevelCritical~0)) (.cse3 (= 1 ~systemActive~0)) (.cse4 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse1 .cse5 .cse3 .cse4) (and .cse6 .cse5 .cse3 .cse4) (and .cse6 .cse2 .cse3 .cse4))) [2023-12-19 23:38:14,738 INFO L899 garLoopResultBuilder]: For program point L271(lines 271 277) no Hoare annotation was computed. [2023-12-19 23:38:14,738 INFO L899 garLoopResultBuilder]: For program point L271-1(lines 271 277) no Hoare annotation was computed. [2023-12-19 23:38:14,738 INFO L899 garLoopResultBuilder]: For program point L300(lines 241 304) no Hoare annotation was computed. [2023-12-19 23:38:14,738 INFO L895 garLoopResultBuilder]: At program point L263(line 263) the Hoare annotation is: (let ((.cse5 (= ~pumpRunning~0 0)) (.cse1 (= ~methAndRunningLastTime~0 0)) (.cse2 (= ~methaneLevelCritical~0 0)) (.cse0 (<= 1 ~pumpRunning~0)) (.cse6 (<= 1 ~methaneLevelCritical~0)) (.cse3 (= 1 ~systemActive~0)) (.cse4 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse5 .cse1 .cse6 .cse3 .cse4) (and .cse5 .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse6 .cse3 .cse4))) [2023-12-19 23:38:14,738 INFO L895 garLoopResultBuilder]: At program point L297(lines 250 298) the Hoare annotation is: false [2023-12-19 23:38:14,738 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-12-19 23:38:14,738 INFO L899 garLoopResultBuilder]: For program point L252(lines 251 296) no Hoare annotation was computed. [2023-12-19 23:38:14,739 INFO L899 garLoopResultBuilder]: For program point L281(lines 281 292) no Hoare annotation was computed. [2023-12-19 23:38:14,739 INFO L895 garLoopResultBuilder]: At program point L273(line 273) the Hoare annotation is: (let ((.cse5 (= ~pumpRunning~0 0)) (.cse1 (= ~methAndRunningLastTime~0 0)) (.cse2 (= ~methaneLevelCritical~0 0)) (.cse0 (<= 1 ~pumpRunning~0)) (.cse6 (<= 1 ~methaneLevelCritical~0)) (.cse3 (= 1 ~systemActive~0)) (.cse4 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse5 .cse1 .cse6 .cse3 .cse4) (and .cse5 .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse6 .cse3 .cse4))) [2023-12-19 23:38:14,739 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-12-19 23:38:14,739 INFO L895 garLoopResultBuilder]: At program point L294(lines 251 296) the Hoare annotation is: (let ((.cse5 (= ~pumpRunning~0 0)) (.cse1 (= ~methAndRunningLastTime~0 0)) (.cse2 (= ~methaneLevelCritical~0 0)) (.cse0 (<= 1 ~pumpRunning~0)) (.cse6 (<= 1 ~methaneLevelCritical~0)) (.cse3 (= 1 ~systemActive~0)) (.cse4 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse5 .cse1 .cse6 .cse3 .cse4) (and .cse5 .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse6 .cse3 .cse4))) [2023-12-19 23:38:14,739 INFO L899 garLoopResultBuilder]: For program point L261(lines 261 267) no Hoare annotation was computed. [2023-12-19 23:38:14,739 INFO L899 garLoopResultBuilder]: For program point L261-1(lines 261 267) no Hoare annotation was computed. [2023-12-19 23:38:14,739 INFO L899 garLoopResultBuilder]: For program point L902(lines 902 909) no Hoare annotation was computed. [2023-12-19 23:38:14,739 INFO L899 garLoopResultBuilder]: For program point L902-2(lines 902 909) no Hoare annotation was computed. [2023-12-19 23:38:14,739 INFO L899 garLoopResultBuilder]: For program point L227-2(lines 227 231) no Hoare annotation was computed. [2023-12-19 23:38:14,739 INFO L895 garLoopResultBuilder]: At program point L114(line 114) the Hoare annotation is: (let ((.cse1 (not (= ~methaneLevelCritical~0 0))) (.cse2 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (not (= 1 ~systemActive~0))) (.cse3 (not (= ~methAndRunningLastTime~0 0)))) (and (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0 .cse1 (< |old(~pumpRunning~0)| 1)) (or .cse2 .cse0 .cse1 .cse3) (or .cse2 .cse0 .cse3 (< ~methaneLevelCritical~0 1)))) [2023-12-19 23:38:14,739 INFO L899 garLoopResultBuilder]: For program point L114-1(lines 95 119) no Hoare annotation was computed. [2023-12-19 23:38:14,739 INFO L899 garLoopResultBuilder]: For program point L430(lines 430 436) no Hoare annotation was computed. [2023-12-19 23:38:14,740 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 95 119) the Hoare annotation is: (let ((.cse1 (not (= ~methaneLevelCritical~0 0))) (.cse2 (not (= |old(~pumpRunning~0)| 0))) (.cse3 (= ~pumpRunning~0 0)) (.cse0 (not (= 1 ~systemActive~0))) (.cse4 (not (= ~methAndRunningLastTime~0 0)))) (and (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0 .cse1 (< |old(~pumpRunning~0)| 1)) (or .cse2 .cse3 .cse0 .cse1 .cse4) (or .cse2 .cse3 .cse0 .cse4 (< ~methaneLevelCritical~0 1)))) [2023-12-19 23:38:14,740 INFO L899 garLoopResultBuilder]: For program point isHighWaterSensorDry_returnLabel#1(lines 426 439) no Hoare annotation was computed. [2023-12-19 23:38:14,740 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 95 119) no Hoare annotation was computed. [2023-12-19 23:38:14,740 INFO L895 garLoopResultBuilder]: At program point L109(line 109) the Hoare annotation is: (let ((.cse8 (= 1 ~systemActive~0)) (.cse9 (= |old(~pumpRunning~0)| 0))) (let ((.cse6 (and (= ~pumpRunning~0 0) (= |processEnvironment__wrappee__highWaterSensor_~tmp~0#1| 0) .cse8 .cse9)) (.cse4 (not (= ~methaneLevelCritical~0 0))) (.cse0 (not (= ~waterLevel~0 1))) (.cse1 (<= 1 |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_#res#1|)) (.cse2 (not .cse9)) (.cse3 (not .cse8)) (.cse5 (not (= ~methAndRunningLastTime~0 0))) (.cse7 (< ~methaneLevelCritical~0 1))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (or .cse2 .cse3 .cse4 .cse6 .cse5) (or .cse2 .cse3 .cse6 .cse5 .cse7) (or .cse3 .cse4 (< |old(~pumpRunning~0)| 1)) (or .cse0 .cse1 .cse2 .cse3 .cse5 .cse7)))) [2023-12-19 23:38:14,740 INFO L899 garLoopResultBuilder]: For program point L103(lines 103 111) no Hoare annotation was computed. [2023-12-19 23:38:14,740 INFO L899 garLoopResultBuilder]: For program point L99(lines 99 116) no Hoare annotation was computed. [2023-12-19 23:38:14,740 INFO L899 garLoopResultBuilder]: For program point L227(lines 227 231) no Hoare annotation was computed. [2023-12-19 23:38:14,740 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 361 372) no Hoare annotation was computed. [2023-12-19 23:38:14,740 INFO L899 garLoopResultBuilder]: For program point L365-1(lines 361 372) no Hoare annotation was computed. [2023-12-19 23:38:14,740 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 361 372) the Hoare annotation is: (let ((.cse0 (not (= ~pumpRunning~0 0))) (.cse1 (not (= |old(~waterLevel~0)| 1))) (.cse2 (not (= 1 ~systemActive~0))) (.cse3 (= ~waterLevel~0 1)) (.cse4 (not (= ~methAndRunningLastTime~0 0)))) (and (or .cse0 .cse1 .cse2 (not (= ~methaneLevelCritical~0 0)) .cse3 .cse4) (or .cse0 .cse1 .cse2 .cse3 .cse4 (< ~methaneLevelCritical~0 1)))) [2023-12-19 23:38:14,742 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 23:38:14,743 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-19 23:38:14,753 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.12 11:38:14 BoogieIcfgContainer [2023-12-19 23:38:14,753 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-19 23:38:14,754 INFO L158 Benchmark]: Toolchain (without parser) took 6541.94ms. Allocated memory was 191.9MB in the beginning and 313.5MB in the end (delta: 121.6MB). Free memory was 152.8MB in the beginning and 263.4MB in the end (delta: -110.6MB). Peak memory consumption was 142.1MB. Max. memory is 8.0GB. [2023-12-19 23:38:14,754 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 191.9MB. Free memory is still 145.6MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-19 23:38:14,754 INFO L158 Benchmark]: CACSL2BoogieTranslator took 344.57ms. Allocated memory is still 191.9MB. Free memory was 152.4MB in the beginning and 132.8MB in the end (delta: 19.5MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. [2023-12-19 23:38:14,754 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.15ms. Allocated memory is still 191.9MB. Free memory was 132.8MB in the beginning and 130.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-19 23:38:14,754 INFO L158 Benchmark]: Boogie Preprocessor took 34.06ms. Allocated memory is still 191.9MB. Free memory was 130.7MB in the beginning and 128.2MB in the end (delta: 2.5MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-19 23:38:14,755 INFO L158 Benchmark]: RCFGBuilder took 329.44ms. Allocated memory is still 191.9MB. Free memory was 128.2MB in the beginning and 107.3MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. [2023-12-19 23:38:14,755 INFO L158 Benchmark]: TraceAbstraction took 5775.66ms. Allocated memory was 191.9MB in the beginning and 313.5MB in the end (delta: 121.6MB). Free memory was 106.6MB in the beginning and 263.4MB in the end (delta: -156.8MB). Peak memory consumption was 95.9MB. Max. memory is 8.0GB. [2023-12-19 23:38:14,756 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 191.9MB. Free memory is still 145.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 344.57ms. Allocated memory is still 191.9MB. Free memory was 152.4MB in the beginning and 132.8MB in the end (delta: 19.5MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 54.15ms. Allocated memory is still 191.9MB. Free memory was 132.8MB in the beginning and 130.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 34.06ms. Allocated memory is still 191.9MB. Free memory was 130.7MB in the beginning and 128.2MB in the end (delta: 2.5MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 329.44ms. Allocated memory is still 191.9MB. Free memory was 128.2MB in the beginning and 107.3MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. * TraceAbstraction took 5775.66ms. Allocated memory was 191.9MB in the beginning and 313.5MB in the end (delta: 121.6MB). Free memory was 106.6MB in the beginning and 263.4MB in the end (delta: -156.8MB). Peak memory consumption was 95.9MB. 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,"MinePump.i","") [49] - GenericResultAtLocation [Line: 237]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [237] - GenericResultAtLocation [Line: 305]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [305] - GenericResultAtLocation [Line: 345]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [345] - GenericResultAtLocation [Line: 440]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [440] - GenericResultAtLocation [Line: 449]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [449] - GenericResultAtLocation [Line: 815]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [815] - GenericResultAtLocation [Line: 915]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [915] * 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: 445]: 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 8 procedures, 68 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 5.7s, OverallIterations: 12, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 544 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 525 mSDsluCounter, 2242 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1371 mSDsCounter, 85 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 677 IncrementalHoareTripleChecker+Invalid, 762 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 85 mSolverCounterUnsat, 871 mSDtfsCounter, 677 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 661 GetRequests, 595 SyntacticMatches, 1 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=372occurred in iteration=11, InterpolantAutomatonStates: 56, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 12 MinimizatonAttempts, 57 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 21 LocationsWithAnnotation, 658 PreInvPairs, 713 NumberOfFragments, 1261 HoareAnnotationTreeSize, 658 FormulaSimplifications, 84 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 21 FormulaSimplificationsInter, 1918 FormulaSimplificationTreeSizeReductionInter, 1.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 996 NumberOfCodeBlocks, 996 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 1051 ConstructedInterpolants, 0 QuantifiedInterpolants, 1807 SizeOfPredicates, 11 NumberOfNonLiveVariables, 1692 ConjunctsInSsa, 40 ConjunctsInUnsatCore, 19 InterpolantComputations, 12 PerfectInterpolantSequences, 340/362 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: 827]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 251]: Loop Invariant Derived loop invariant: ((((((((1 <= pumpRunning) && (methAndRunningLastTime == 0)) && (methaneLevelCritical == 0)) && (1 == systemActive)) && (splverifierCounter == 0)) || (((((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (1 <= methaneLevelCritical)) && (1 == systemActive)) && (splverifierCounter == 0))) || (((((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (methaneLevelCritical == 0)) && (1 == systemActive)) && (splverifierCounter == 0))) || ((((1 <= pumpRunning) && (1 <= methaneLevelCritical)) && (1 == systemActive)) && (splverifierCounter == 0))) - InvariantResult [Line: 250]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2023-12-19 23:38:14,766 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...