/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_spec5_product39.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-19 23:40:28,198 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-19 23:40:28,260 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-19 23:40:28,266 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-19 23:40:28,266 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-19 23:40:28,287 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-19 23:40:28,288 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-19 23:40:28,288 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-19 23:40:28,288 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-19 23:40:28,291 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-19 23:40:28,291 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-19 23:40:28,292 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-19 23:40:28,292 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-19 23:40:28,293 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-19 23:40:28,293 INFO L153 SettingsManager]: * Use SBE=true [2023-12-19 23:40:28,293 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-19 23:40:28,293 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-19 23:40:28,293 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-19 23:40:28,293 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-19 23:40:28,294 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-19 23:40:28,294 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-19 23:40:28,294 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-19 23:40:28,294 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-19 23:40:28,294 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-19 23:40:28,294 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-19 23:40:28,295 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-19 23:40:28,295 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-19 23:40:28,295 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-19 23:40:28,295 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-19 23:40:28,295 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-19 23:40:28,296 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-19 23:40:28,296 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-19 23:40:28,296 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-19 23:40:28,296 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-19 23:40:28,296 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-19 23:40:28,297 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-19 23:40:28,297 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-19 23:40:28,297 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-19 23:40:28,297 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-19 23:40:28,297 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-19 23:40:28,297 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-19 23:40:28,298 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-19 23:40:28,298 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-19 23:40:28,298 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-19 23:40:28,515 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-19 23:40:28,538 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-19 23:40:28,540 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-19 23:40:28,541 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-19 23:40:28,541 INFO L274 PluginConnector]: CDTParser initialized [2023-12-19 23:40:28,542 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product39.cil.c [2023-12-19 23:40:29,556 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-19 23:40:29,749 INFO L384 CDTParser]: Found 1 translation units. [2023-12-19 23:40:29,749 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec5_product39.cil.c [2023-12-19 23:40:29,757 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/212986e94/59cf3d85935943ac927621d8133fb9fa/FLAGfce0b6e86 [2023-12-19 23:40:29,767 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/212986e94/59cf3d85935943ac927621d8133fb9fa [2023-12-19 23:40:29,769 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-19 23:40:29,770 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-19 23:40:29,771 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-19 23:40:29,771 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-19 23:40:29,775 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-19 23:40:29,775 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 11:40:29" (1/1) ... [2023-12-19 23:40:29,776 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e29cce2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:40:29, skipping insertion in model container [2023-12-19 23:40:29,776 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 11:40:29" (1/1) ... [2023-12-19 23:40:29,816 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-19 23:40:29,918 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_spec5_product39.cil.c[1605,1618] [2023-12-19 23:40:29,995 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-19 23:40:30,010 INFO L202 MainTranslator]: Completed pre-run [2023-12-19 23:40:30,017 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [49] [2023-12-19 23:40:30,018 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [58] [2023-12-19 23:40:30,018 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [96] [2023-12-19 23:40:30,018 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [304] [2023-12-19 23:40:30,018 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [405] [2023-12-19 23:40:30,018 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [472] [2023-12-19 23:40:30,019 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [522] [2023-12-19 23:40:30,019 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [888] [2023-12-19 23:40:30,026 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_spec5_product39.cil.c[1605,1618] [2023-12-19 23:40:30,089 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-19 23:40:30,101 INFO L206 MainTranslator]: Completed translation [2023-12-19 23:40:30,101 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:40:30 WrapperNode [2023-12-19 23:40:30,101 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-19 23:40:30,102 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-19 23:40:30,102 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-19 23:40:30,102 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-19 23:40:30,111 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:40:30" (1/1) ... [2023-12-19 23:40:30,122 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:40:30" (1/1) ... [2023-12-19 23:40:30,141 INFO L138 Inliner]: procedures = 56, calls = 102, calls flagged for inlining = 24, calls inlined = 21, statements flattened = 206 [2023-12-19 23:40:30,141 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-19 23:40:30,142 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-19 23:40:30,142 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-19 23:40:30,142 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-19 23:40:30,153 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:40:30" (1/1) ... [2023-12-19 23:40:30,153 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:40:30" (1/1) ... [2023-12-19 23:40:30,155 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:40:30" (1/1) ... [2023-12-19 23:40:30,165 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-19 23:40:30,165 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:40:30" (1/1) ... [2023-12-19 23:40:30,165 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:40:30" (1/1) ... [2023-12-19 23:40:30,174 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:40:30" (1/1) ... [2023-12-19 23:40:30,177 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:40:30" (1/1) ... [2023-12-19 23:40:30,178 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:40:30" (1/1) ... [2023-12-19 23:40:30,179 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:40:30" (1/1) ... [2023-12-19 23:40:30,180 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-19 23:40:30,181 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-19 23:40:30,181 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-19 23:40:30,181 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-19 23:40:30,181 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:40:30" (1/1) ... [2023-12-19 23:40:30,187 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-19 23:40:30,196 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 23:40:30,207 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-19 23:40:30,211 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-19 23:40:30,237 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-19 23:40:30,237 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-12-19 23:40:30,238 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-12-19 23:40:30,238 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-12-19 23:40:30,238 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-12-19 23:40:30,238 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-12-19 23:40:30,238 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-12-19 23:40:30,238 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2023-12-19 23:40:30,238 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2023-12-19 23:40:30,238 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-12-19 23:40:30,238 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-12-19 23:40:30,238 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2023-12-19 23:40:30,238 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2023-12-19 23:40:30,238 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2023-12-19 23:40:30,239 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2023-12-19 23:40:30,239 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-19 23:40:30,239 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-12-19 23:40:30,239 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-12-19 23:40:30,239 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-19 23:40:30,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-19 23:40:30,293 INFO L241 CfgBuilder]: Building ICFG [2023-12-19 23:40:30,295 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-19 23:40:30,461 INFO L282 CfgBuilder]: Performing block encoding [2023-12-19 23:40:30,504 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-19 23:40:30,504 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-12-19 23:40:30,505 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 11:40:30 BoogieIcfgContainer [2023-12-19 23:40:30,505 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-19 23:40:30,506 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-19 23:40:30,506 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-19 23:40:30,508 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-19 23:40:30,508 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.12 11:40:29" (1/3) ... [2023-12-19 23:40:30,509 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11cacd88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 11:40:30, skipping insertion in model container [2023-12-19 23:40:30,509 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:40:30" (2/3) ... [2023-12-19 23:40:30,509 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11cacd88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 11:40:30, skipping insertion in model container [2023-12-19 23:40:30,509 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 11:40:30" (3/3) ... [2023-12-19 23:40:30,510 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product39.cil.c [2023-12-19 23:40:30,525 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-19 23:40:30,525 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-19 23:40:30,558 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-19 23:40:30,562 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;@7fba6d2c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-19 23:40:30,562 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-19 23:40:30,565 INFO L276 IsEmpty]: Start isEmpty. Operand has 75 states, 51 states have (on average 1.5294117647058822) internal successors, (78), 60 states have internal predecessors, (78), 14 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (14), 11 states have call predecessors, (14), 14 states have call successors, (14) [2023-12-19 23:40:30,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-12-19 23:40:30,575 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:40:30,576 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] [2023-12-19 23:40:30,576 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:40:30,581 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:40:30,582 INFO L85 PathProgramCache]: Analyzing trace with hash 190850071, now seen corresponding path program 1 times [2023-12-19 23:40:30,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:40:30,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472162179] [2023-12-19 23:40:30,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:40:30,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:40:30,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:30,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 23:40:30,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:30,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-19 23:40:30,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:30,763 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 23:40:30,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:40:30,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472162179] [2023-12-19 23:40:30,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [472162179] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:40:30,764 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:40:30,764 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-19 23:40:30,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615393869] [2023-12-19 23:40:30,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:40:30,769 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-19 23:40:30,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:40:30,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-19 23:40:30,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-19 23:40:30,791 INFO L87 Difference]: Start difference. First operand has 75 states, 51 states have (on average 1.5294117647058822) internal successors, (78), 60 states have internal predecessors, (78), 14 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (14), 11 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-19 23:40:30,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:40:30,850 INFO L93 Difference]: Finished difference Result 148 states and 213 transitions. [2023-12-19 23:40:30,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-19 23:40:30,859 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 22 [2023-12-19 23:40:30,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:40:30,866 INFO L225 Difference]: With dead ends: 148 [2023-12-19 23:40:30,866 INFO L226 Difference]: Without dead ends: 70 [2023-12-19 23:40:30,868 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-19 23:40:30,870 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 23:40:30,871 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 86 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 23:40:30,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2023-12-19 23:40:30,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2023-12-19 23:40:30,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 48 states have (on average 1.4166666666666667) internal successors, (68), 56 states have internal predecessors, (68), 14 states have call successors, (14), 8 states have call predecessors, (14), 7 states have return successors, (13), 10 states have call predecessors, (13), 13 states have call successors, (13) [2023-12-19 23:40:30,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 95 transitions. [2023-12-19 23:40:30,897 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 95 transitions. Word has length 22 [2023-12-19 23:40:30,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:40:30,898 INFO L495 AbstractCegarLoop]: Abstraction has 70 states and 95 transitions. [2023-12-19 23:40:30,898 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-19 23:40:30,898 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 95 transitions. [2023-12-19 23:40:30,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-12-19 23:40:30,899 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:40:30,900 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] [2023-12-19 23:40:30,900 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-19 23:40:30,900 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:40:30,900 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:40:30,900 INFO L85 PathProgramCache]: Analyzing trace with hash 471814718, now seen corresponding path program 1 times [2023-12-19 23:40:30,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:40:30,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [131184194] [2023-12-19 23:40:30,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:40:30,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:40:30,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:30,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 23:40:30,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:30,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-19 23:40:30,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:30,967 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 23:40:30,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:40:30,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [131184194] [2023-12-19 23:40:30,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [131184194] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:40:30,967 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:40:30,967 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-19 23:40:30,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006736100] [2023-12-19 23:40:30,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:40:30,968 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 23:40:30,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:40:30,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 23:40:30,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 23:40:30,974 INFO L87 Difference]: Start difference. First operand 70 states and 95 transitions. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-19 23:40:31,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:40:31,000 INFO L93 Difference]: Finished difference Result 110 states and 148 transitions. [2023-12-19 23:40:31,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 23:40:31,000 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 23 [2023-12-19 23:40:31,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:40:31,001 INFO L225 Difference]: With dead ends: 110 [2023-12-19 23:40:31,001 INFO L226 Difference]: Without dead ends: 62 [2023-12-19 23:40:31,002 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 23:40:31,002 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 14 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 23:40:31,003 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 127 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 23:40:31,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2023-12-19 23:40:31,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2023-12-19 23:40:31,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 43 states have (on average 1.441860465116279) internal successors, (62), 51 states have internal predecessors, (62), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 8 states have call predecessors, (11), 11 states have call successors, (11) [2023-12-19 23:40:31,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 84 transitions. [2023-12-19 23:40:31,010 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 84 transitions. Word has length 23 [2023-12-19 23:40:31,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:40:31,010 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 84 transitions. [2023-12-19 23:40:31,010 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-19 23:40:31,010 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 84 transitions. [2023-12-19 23:40:31,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-12-19 23:40:31,011 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:40:31,011 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] [2023-12-19 23:40:31,011 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-19 23:40:31,011 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:40:31,012 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:40:31,012 INFO L85 PathProgramCache]: Analyzing trace with hash -1985947031, now seen corresponding path program 1 times [2023-12-19 23:40:31,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:40:31,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424905367] [2023-12-19 23:40:31,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:40:31,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:40:31,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:31,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-12-19 23:40:31,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:31,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-12-19 23:40:31,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:31,100 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 23:40:31,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:40:31,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1424905367] [2023-12-19 23:40:31,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1424905367] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:40:31,101 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:40:31,101 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-19 23:40:31,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402565964] [2023-12-19 23:40:31,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:40:31,101 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 23:40:31,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:40:31,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 23:40:31,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 23:40:31,102 INFO L87 Difference]: Start difference. First operand 62 states and 84 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-19 23:40:31,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:40:31,138 INFO L93 Difference]: Finished difference Result 182 states and 249 transitions. [2023-12-19 23:40:31,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 23:40:31,138 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 26 [2023-12-19 23:40:31,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:40:31,139 INFO L225 Difference]: With dead ends: 182 [2023-12-19 23:40:31,139 INFO L226 Difference]: Without dead ends: 122 [2023-12-19 23:40:31,140 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 23:40:31,141 INFO L413 NwaCegarLoop]: 84 mSDtfsCounter, 68 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 23:40:31,141 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 154 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 23:40:31,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2023-12-19 23:40:31,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 119. [2023-12-19 23:40:31,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 82 states have (on average 1.451219512195122) internal successors, (119), 97 states have internal predecessors, (119), 22 states have call successors, (22), 14 states have call predecessors, (22), 14 states have return successors, (22), 15 states have call predecessors, (22), 22 states have call successors, (22) [2023-12-19 23:40:31,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 163 transitions. [2023-12-19 23:40:31,153 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 163 transitions. Word has length 26 [2023-12-19 23:40:31,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:40:31,154 INFO L495 AbstractCegarLoop]: Abstraction has 119 states and 163 transitions. [2023-12-19 23:40:31,154 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-19 23:40:31,154 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 163 transitions. [2023-12-19 23:40:31,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-12-19 23:40:31,155 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:40:31,155 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, 1] [2023-12-19 23:40:31,155 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-19 23:40:31,155 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:40:31,155 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:40:31,155 INFO L85 PathProgramCache]: Analyzing trace with hash -2104489746, now seen corresponding path program 1 times [2023-12-19 23:40:31,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:40:31,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698091560] [2023-12-19 23:40:31,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:40:31,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:40:31,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:31,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 23:40:31,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:31,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-12-19 23:40:31,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:31,263 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-19 23:40:31,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:40:31,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1698091560] [2023-12-19 23:40:31,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1698091560] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:40:31,263 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:40:31,263 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-19 23:40:31,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666678414] [2023-12-19 23:40:31,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:40:31,264 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-19 23:40:31,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:40:31,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-19 23:40:31,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-19 23:40:31,265 INFO L87 Difference]: Start difference. First operand 119 states and 163 transitions. Second operand has 6 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-19 23:40:31,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:40:31,406 INFO L93 Difference]: Finished difference Result 320 states and 445 transitions. [2023-12-19 23:40:31,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-19 23:40:31,407 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 29 [2023-12-19 23:40:31,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:40:31,417 INFO L225 Difference]: With dead ends: 320 [2023-12-19 23:40:31,417 INFO L226 Difference]: Without dead ends: 203 [2023-12-19 23:40:31,418 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-12-19 23:40:31,419 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 58 mSDsluCounter, 244 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 317 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 23:40:31,419 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 317 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 23:40:31,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2023-12-19 23:40:31,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 198. [2023-12-19 23:40:31,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 139 states have (on average 1.3741007194244603) internal successors, (191), 154 states have internal predecessors, (191), 32 states have call successors, (32), 26 states have call predecessors, (32), 26 states have return successors, (40), 29 states have call predecessors, (40), 32 states have call successors, (40) [2023-12-19 23:40:31,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 263 transitions. [2023-12-19 23:40:31,438 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 263 transitions. Word has length 29 [2023-12-19 23:40:31,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:40:31,438 INFO L495 AbstractCegarLoop]: Abstraction has 198 states and 263 transitions. [2023-12-19 23:40:31,438 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-19 23:40:31,439 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 263 transitions. [2023-12-19 23:40:31,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-12-19 23:40:31,440 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:40:31,440 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 23:40:31,440 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-19 23:40:31,440 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:40:31,440 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:40:31,440 INFO L85 PathProgramCache]: Analyzing trace with hash -531412959, now seen corresponding path program 1 times [2023-12-19 23:40:31,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:40:31,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805133020] [2023-12-19 23:40:31,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:40:31,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:40:31,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:31,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-12-19 23:40:31,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:31,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-19 23:40:31,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:31,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-12-19 23:40:31,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:31,544 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 23:40:31,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:40:31,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805133020] [2023-12-19 23:40:31,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1805133020] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:40:31,544 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:40:31,544 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-19 23:40:31,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315631100] [2023-12-19 23:40:31,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:40:31,545 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-19 23:40:31,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:40:31,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-19 23:40:31,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-19 23:40:31,545 INFO L87 Difference]: Start difference. First operand 198 states and 263 transitions. Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-12-19 23:40:31,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:40:31,652 INFO L93 Difference]: Finished difference Result 438 states and 589 transitions. [2023-12-19 23:40:31,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-19 23:40:31,653 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 38 [2023-12-19 23:40:31,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:40:31,655 INFO L225 Difference]: With dead ends: 438 [2023-12-19 23:40:31,655 INFO L226 Difference]: Without dead ends: 242 [2023-12-19 23:40:31,656 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-19 23:40:31,656 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 48 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 23:40:31,657 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 202 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 23:40:31,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2023-12-19 23:40:31,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 240. [2023-12-19 23:40:31,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 171 states have (on average 1.3508771929824561) internal successors, (231), 186 states have internal predecessors, (231), 36 states have call successors, (36), 26 states have call predecessors, (36), 32 states have return successors, (50), 37 states have call predecessors, (50), 36 states have call successors, (50) [2023-12-19 23:40:31,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 317 transitions. [2023-12-19 23:40:31,701 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 317 transitions. Word has length 38 [2023-12-19 23:40:31,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:40:31,701 INFO L495 AbstractCegarLoop]: Abstraction has 240 states and 317 transitions. [2023-12-19 23:40:31,701 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-12-19 23:40:31,701 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 317 transitions. [2023-12-19 23:40:31,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-12-19 23:40:31,703 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:40:31,703 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 23:40:31,703 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-19 23:40:31,703 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:40:31,703 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:40:31,704 INFO L85 PathProgramCache]: Analyzing trace with hash -1811276637, now seen corresponding path program 1 times [2023-12-19 23:40:31,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:40:31,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484659202] [2023-12-19 23:40:31,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:40:31,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:40:31,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:31,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-12-19 23:40:31,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:31,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-19 23:40:31,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:31,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-12-19 23:40:31,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:31,830 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 23:40:31,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:40:31,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1484659202] [2023-12-19 23:40:31,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1484659202] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:40:31,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:40:31,832 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-19 23:40:31,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143465798] [2023-12-19 23:40:31,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:40:31,832 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-19 23:40:31,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:40:31,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-19 23:40:31,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-19 23:40:31,834 INFO L87 Difference]: Start difference. First operand 240 states and 317 transitions. Second operand has 6 states, 6 states have (on average 5.0) internal successors, (30), 5 states have internal predecessors, (30), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2023-12-19 23:40:32,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:40:32,080 INFO L93 Difference]: Finished difference Result 500 states and 673 transitions. [2023-12-19 23:40:32,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-19 23:40:32,080 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.0) internal successors, (30), 5 states have internal predecessors, (30), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 38 [2023-12-19 23:40:32,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:40:32,084 INFO L225 Difference]: With dead ends: 500 [2023-12-19 23:40:32,084 INFO L226 Difference]: Without dead ends: 262 [2023-12-19 23:40:32,085 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2023-12-19 23:40:32,090 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 163 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 282 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 23:40:32,092 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 282 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 23:40:32,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2023-12-19 23:40:32,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 244. [2023-12-19 23:40:32,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244 states, 175 states have (on average 1.3428571428571427) internal successors, (235), 190 states have internal predecessors, (235), 36 states have call successors, (36), 26 states have call predecessors, (36), 32 states have return successors, (50), 37 states have call predecessors, (50), 36 states have call successors, (50) [2023-12-19 23:40:32,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 321 transitions. [2023-12-19 23:40:32,117 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 321 transitions. Word has length 38 [2023-12-19 23:40:32,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:40:32,119 INFO L495 AbstractCegarLoop]: Abstraction has 244 states and 321 transitions. [2023-12-19 23:40:32,119 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.0) internal successors, (30), 5 states have internal predecessors, (30), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2023-12-19 23:40:32,119 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 321 transitions. [2023-12-19 23:40:32,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-12-19 23:40:32,125 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:40:32,126 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 23:40:32,126 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-19 23:40:32,126 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:40:32,126 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:40:32,126 INFO L85 PathProgramCache]: Analyzing trace with hash 895342757, now seen corresponding path program 1 times [2023-12-19 23:40:32,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:40:32,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771107645] [2023-12-19 23:40:32,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:40:32,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:40:32,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:32,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-12-19 23:40:32,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:32,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-19 23:40:32,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:32,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-12-19 23:40:32,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:32,188 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 23:40:32,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:40:32,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771107645] [2023-12-19 23:40:32,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [771107645] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:40:32,188 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:40:32,188 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-19 23:40:32,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443805265] [2023-12-19 23:40:32,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:40:32,189 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-19 23:40:32,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:40:32,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-19 23:40:32,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-19 23:40:32,190 INFO L87 Difference]: Start difference. First operand 244 states and 321 transitions. Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-12-19 23:40:32,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:40:32,376 INFO L93 Difference]: Finished difference Result 811 states and 1139 transitions. [2023-12-19 23:40:32,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-19 23:40:32,377 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 38 [2023-12-19 23:40:32,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:40:32,380 INFO L225 Difference]: With dead ends: 811 [2023-12-19 23:40:32,380 INFO L226 Difference]: Without dead ends: 569 [2023-12-19 23:40:32,381 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-19 23:40:32,382 INFO L413 NwaCegarLoop]: 120 mSDtfsCounter, 184 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 285 SdHoareTripleChecker+Invalid, 288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 23:40:32,382 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [191 Valid, 285 Invalid, 288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 23:40:32,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 569 states. [2023-12-19 23:40:32,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 569 to 561. [2023-12-19 23:40:32,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 561 states, 400 states have (on average 1.3225) internal successors, (529), 429 states have internal predecessors, (529), 90 states have call successors, (90), 71 states have call predecessors, (90), 70 states have return successors, (140), 84 states have call predecessors, (140), 90 states have call successors, (140) [2023-12-19 23:40:32,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 561 states to 561 states and 759 transitions. [2023-12-19 23:40:32,423 INFO L78 Accepts]: Start accepts. Automaton has 561 states and 759 transitions. Word has length 38 [2023-12-19 23:40:32,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:40:32,423 INFO L495 AbstractCegarLoop]: Abstraction has 561 states and 759 transitions. [2023-12-19 23:40:32,423 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-12-19 23:40:32,424 INFO L276 IsEmpty]: Start isEmpty. Operand 561 states and 759 transitions. [2023-12-19 23:40:32,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-12-19 23:40:32,425 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:40:32,426 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 23:40:32,426 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-19 23:40:32,426 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:40:32,426 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:40:32,426 INFO L85 PathProgramCache]: Analyzing trace with hash 1632286155, now seen corresponding path program 1 times [2023-12-19 23:40:32,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:40:32,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156766344] [2023-12-19 23:40:32,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:40:32,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:40:32,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:32,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-19 23:40:32,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:32,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-19 23:40:32,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:32,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-12-19 23:40:32,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:32,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-19 23:40:32,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:32,627 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 23:40:32,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:40:32,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1156766344] [2023-12-19 23:40:32,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1156766344] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:40:32,627 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:40:32,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-19 23:40:32,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646660703] [2023-12-19 23:40:32,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:40:32,628 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-19 23:40:32,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:40:32,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-19 23:40:32,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-19 23:40:32,629 INFO L87 Difference]: Start difference. First operand 561 states and 759 transitions. Second operand has 8 states, 8 states have (on average 4.0) internal successors, (32), 6 states have internal predecessors, (32), 3 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2023-12-19 23:40:33,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:40:33,037 INFO L93 Difference]: Finished difference Result 1808 states and 2494 transitions. [2023-12-19 23:40:33,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-12-19 23:40:33,037 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.0) internal successors, (32), 6 states have internal predecessors, (32), 3 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) Word has length 42 [2023-12-19 23:40:33,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:40:33,042 INFO L225 Difference]: With dead ends: 1808 [2023-12-19 23:40:33,042 INFO L226 Difference]: Without dead ends: 1249 [2023-12-19 23:40:33,045 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=126, Invalid=426, Unknown=0, NotChecked=0, Total=552 [2023-12-19 23:40:33,045 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 351 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 426 mSolverCounterSat, 132 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 358 SdHoareTripleChecker+Valid, 341 SdHoareTripleChecker+Invalid, 558 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 132 IncrementalHoareTripleChecker+Valid, 426 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-19 23:40:33,045 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [358 Valid, 341 Invalid, 558 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [132 Valid, 426 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-19 23:40:33,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1249 states. [2023-12-19 23:40:33,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1249 to 1054. [2023-12-19 23:40:33,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1054 states, 750 states have (on average 1.304) internal successors, (978), 811 states have internal predecessors, (978), 169 states have call successors, (169), 121 states have call predecessors, (169), 134 states have return successors, (264), 160 states have call predecessors, (264), 169 states have call successors, (264) [2023-12-19 23:40:33,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1054 states to 1054 states and 1411 transitions. [2023-12-19 23:40:33,105 INFO L78 Accepts]: Start accepts. Automaton has 1054 states and 1411 transitions. Word has length 42 [2023-12-19 23:40:33,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:40:33,105 INFO L495 AbstractCegarLoop]: Abstraction has 1054 states and 1411 transitions. [2023-12-19 23:40:33,106 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.0) internal successors, (32), 6 states have internal predecessors, (32), 3 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2023-12-19 23:40:33,106 INFO L276 IsEmpty]: Start isEmpty. Operand 1054 states and 1411 transitions. [2023-12-19 23:40:33,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-12-19 23:40:33,107 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:40:33,107 INFO L195 NwaCegarLoop]: trace histogram [3, 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] [2023-12-19 23:40:33,107 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-19 23:40:33,107 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:40:33,107 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:40:33,107 INFO L85 PathProgramCache]: Analyzing trace with hash -1091612530, now seen corresponding path program 1 times [2023-12-19 23:40:33,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:40:33,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915442677] [2023-12-19 23:40:33,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:40:33,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:40:33,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:33,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-19 23:40:33,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:33,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-19 23:40:33,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:33,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 23:40:33,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:33,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 23:40:33,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:33,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-19 23:40:33,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:33,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-12-19 23:40:33,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:33,162 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-19 23:40:33,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:40:33,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915442677] [2023-12-19 23:40:33,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [915442677] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:40:33,163 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:40:33,163 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-19 23:40:33,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711841247] [2023-12-19 23:40:33,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:40:33,163 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-19 23:40:33,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:40:33,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-19 23:40:33,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-12-19 23:40:33,164 INFO L87 Difference]: Start difference. First operand 1054 states and 1411 transitions. Second operand has 7 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 4 states have call successors, (7), 5 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 4 states have call successors, (6) [2023-12-19 23:40:33,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:40:33,413 INFO L93 Difference]: Finished difference Result 1240 states and 1645 transitions. [2023-12-19 23:40:33,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-19 23:40:33,413 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 4 states have call successors, (7), 5 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 4 states have call successors, (6) Word has length 66 [2023-12-19 23:40:33,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:40:33,416 INFO L225 Difference]: With dead ends: 1240 [2023-12-19 23:40:33,416 INFO L226 Difference]: Without dead ends: 529 [2023-12-19 23:40:33,418 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2023-12-19 23:40:33,420 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 236 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 245 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 23:40:33,420 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [245 Valid, 228 Invalid, 316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 244 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 23:40:33,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 529 states. [2023-12-19 23:40:33,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 529 to 523. [2023-12-19 23:40:33,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 523 states, 373 states have (on average 1.260053619302949) internal successors, (470), 400 states have internal predecessors, (470), 82 states have call successors, (82), 61 states have call predecessors, (82), 67 states have return successors, (129), 79 states have call predecessors, (129), 82 states have call successors, (129) [2023-12-19 23:40:33,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 523 states to 523 states and 681 transitions. [2023-12-19 23:40:33,456 INFO L78 Accepts]: Start accepts. Automaton has 523 states and 681 transitions. Word has length 66 [2023-12-19 23:40:33,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:40:33,457 INFO L495 AbstractCegarLoop]: Abstraction has 523 states and 681 transitions. [2023-12-19 23:40:33,457 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 4 states have call successors, (7), 5 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 4 states have call successors, (6) [2023-12-19 23:40:33,458 INFO L276 IsEmpty]: Start isEmpty. Operand 523 states and 681 transitions. [2023-12-19 23:40:33,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-12-19 23:40:33,459 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:40:33,459 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] [2023-12-19 23:40:33,459 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-19 23:40:33,459 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:40:33,459 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:40:33,459 INFO L85 PathProgramCache]: Analyzing trace with hash 1366570793, now seen corresponding path program 1 times [2023-12-19 23:40:33,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:40:33,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765871044] [2023-12-19 23:40:33,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:40:33,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:40:33,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:33,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-19 23:40:33,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:33,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-19 23:40:33,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:33,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 23:40:33,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:33,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 23:40:33,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:33,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-19 23:40:33,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:33,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 23:40:33,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:33,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 23:40:33,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:33,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-12-19 23:40:33,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:33,617 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 6 proven. 15 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-19 23:40:33,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:40:33,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [765871044] [2023-12-19 23:40:33,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [765871044] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 23:40:33,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1375938786] [2023-12-19 23:40:33,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:40:33,617 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 23:40:33,617 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 23:40:33,621 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 23:40:33,660 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-19 23:40:33,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:33,724 INFO L262 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-19 23:40:33,730 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 23:40:33,834 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 20 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 23:40:33,835 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 23:40:34,011 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 15 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-19 23:40:34,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1375938786] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-19 23:40:34,012 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-19 23:40:34,012 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 6, 6] total 15 [2023-12-19 23:40:34,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022880991] [2023-12-19 23:40:34,012 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-19 23:40:34,013 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-12-19 23:40:34,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:40:34,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-12-19 23:40:34,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2023-12-19 23:40:34,014 INFO L87 Difference]: Start difference. First operand 523 states and 681 transitions. Second operand has 15 states, 12 states have (on average 7.916666666666667) internal successors, (95), 10 states have internal predecessors, (95), 6 states have call successors, (20), 7 states have call predecessors, (20), 6 states have return successors, (17), 8 states have call predecessors, (17), 6 states have call successors, (17) [2023-12-19 23:40:34,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:40:34,782 INFO L93 Difference]: Finished difference Result 1160 states and 1529 transitions. [2023-12-19 23:40:34,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-12-19 23:40:34,783 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 12 states have (on average 7.916666666666667) internal successors, (95), 10 states have internal predecessors, (95), 6 states have call successors, (20), 7 states have call predecessors, (20), 6 states have return successors, (17), 8 states have call predecessors, (17), 6 states have call successors, (17) Word has length 74 [2023-12-19 23:40:34,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:40:34,785 INFO L225 Difference]: With dead ends: 1160 [2023-12-19 23:40:34,785 INFO L226 Difference]: Without dead ends: 639 [2023-12-19 23:40:34,787 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 168 SyntacticMatches, 4 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 462 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=441, Invalid=1451, Unknown=0, NotChecked=0, Total=1892 [2023-12-19 23:40:34,788 INFO L413 NwaCegarLoop]: 114 mSDtfsCounter, 347 mSDsluCounter, 650 mSDsCounter, 0 mSdLazyCounter, 956 mSolverCounterSat, 159 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 350 SdHoareTripleChecker+Valid, 764 SdHoareTripleChecker+Invalid, 1115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 159 IncrementalHoareTripleChecker+Valid, 956 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-19 23:40:34,788 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [350 Valid, 764 Invalid, 1115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [159 Valid, 956 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-19 23:40:34,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 639 states. [2023-12-19 23:40:34,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 639 to 561. [2023-12-19 23:40:34,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 561 states, 395 states have (on average 1.2253164556962026) internal successors, (484), 429 states have internal predecessors, (484), 89 states have call successors, (89), 75 states have call predecessors, (89), 76 states have return successors, (116), 79 states have call predecessors, (116), 89 states have call successors, (116) [2023-12-19 23:40:34,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 561 states to 561 states and 689 transitions. [2023-12-19 23:40:34,818 INFO L78 Accepts]: Start accepts. Automaton has 561 states and 689 transitions. Word has length 74 [2023-12-19 23:40:34,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:40:34,818 INFO L495 AbstractCegarLoop]: Abstraction has 561 states and 689 transitions. [2023-12-19 23:40:34,818 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 12 states have (on average 7.916666666666667) internal successors, (95), 10 states have internal predecessors, (95), 6 states have call successors, (20), 7 states have call predecessors, (20), 6 states have return successors, (17), 8 states have call predecessors, (17), 6 states have call successors, (17) [2023-12-19 23:40:34,818 INFO L276 IsEmpty]: Start isEmpty. Operand 561 states and 689 transitions. [2023-12-19 23:40:34,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-12-19 23:40:34,820 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:40:34,820 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 23:40:34,828 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-19 23:40:35,028 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-12-19 23:40:35,029 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:40:35,029 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:40:35,029 INFO L85 PathProgramCache]: Analyzing trace with hash -1183871316, now seen corresponding path program 1 times [2023-12-19 23:40:35,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:40:35,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984095455] [2023-12-19 23:40:35,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:40:35,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:40:35,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:35,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-19 23:40:35,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:35,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-19 23:40:35,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:35,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 23:40:35,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:35,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 23:40:35,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:35,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 23:40:35,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:35,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 23:40:35,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:35,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-12-19 23:40:35,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:35,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 23:40:35,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:35,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-12-19 23:40:35,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:35,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 23:40:35,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:35,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-12-19 23:40:35,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:35,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-12-19 23:40:35,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:35,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-12-19 23:40:35,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:35,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-19 23:40:35,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:35,203 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 70 proven. 19 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-12-19 23:40:35,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:40:35,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984095455] [2023-12-19 23:40:35,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1984095455] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 23:40:35,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1376200560] [2023-12-19 23:40:35,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:40:35,203 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 23:40:35,203 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 23:40:35,204 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 23:40:35,207 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-19 23:40:35,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:35,301 INFO L262 TraceCheckSpWp]: Trace formula consists of 456 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-19 23:40:35,304 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 23:40:35,389 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 108 proven. 3 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-12-19 23:40:35,389 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 23:40:35,591 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 66 proven. 29 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2023-12-19 23:40:35,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1376200560] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-19 23:40:35,592 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-19 23:40:35,592 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 10] total 20 [2023-12-19 23:40:35,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935667915] [2023-12-19 23:40:35,592 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-19 23:40:35,592 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-12-19 23:40:35,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:40:35,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-12-19 23:40:35,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=280, Unknown=0, NotChecked=0, Total=380 [2023-12-19 23:40:35,593 INFO L87 Difference]: Start difference. First operand 561 states and 689 transitions. Second operand has 20 states, 20 states have (on average 6.75) internal successors, (135), 17 states have internal predecessors, (135), 9 states have call successors, (30), 8 states have call predecessors, (30), 9 states have return successors, (28), 8 states have call predecessors, (28), 9 states have call successors, (28) [2023-12-19 23:40:36,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:40:36,000 INFO L93 Difference]: Finished difference Result 1146 states and 1444 transitions. [2023-12-19 23:40:36,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-12-19 23:40:36,001 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 6.75) internal successors, (135), 17 states have internal predecessors, (135), 9 states have call successors, (30), 8 states have call predecessors, (30), 9 states have return successors, (28), 8 states have call predecessors, (28), 9 states have call successors, (28) Word has length 132 [2023-12-19 23:40:36,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:40:36,004 INFO L225 Difference]: With dead ends: 1146 [2023-12-19 23:40:36,004 INFO L226 Difference]: Without dead ends: 587 [2023-12-19 23:40:36,006 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 322 GetRequests, 285 SyntacticMatches, 4 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 264 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=327, Invalid=863, Unknown=0, NotChecked=0, Total=1190 [2023-12-19 23:40:36,006 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 435 mSDsluCounter, 220 mSDsCounter, 0 mSdLazyCounter, 524 mSolverCounterSat, 184 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 437 SdHoareTripleChecker+Valid, 270 SdHoareTripleChecker+Invalid, 708 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 184 IncrementalHoareTripleChecker+Valid, 524 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-19 23:40:36,006 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [437 Valid, 270 Invalid, 708 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [184 Valid, 524 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-19 23:40:36,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 587 states. [2023-12-19 23:40:36,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 587 to 549. [2023-12-19 23:40:36,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 549 states, 389 states have (on average 1.1979434447300772) internal successors, (466), 420 states have internal predecessors, (466), 86 states have call successors, (86), 72 states have call predecessors, (86), 73 states have return successors, (109), 77 states have call predecessors, (109), 86 states have call successors, (109) [2023-12-19 23:40:36,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 549 states to 549 states and 661 transitions. [2023-12-19 23:40:36,036 INFO L78 Accepts]: Start accepts. Automaton has 549 states and 661 transitions. Word has length 132 [2023-12-19 23:40:36,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:40:36,036 INFO L495 AbstractCegarLoop]: Abstraction has 549 states and 661 transitions. [2023-12-19 23:40:36,036 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 6.75) internal successors, (135), 17 states have internal predecessors, (135), 9 states have call successors, (30), 8 states have call predecessors, (30), 9 states have return successors, (28), 8 states have call predecessors, (28), 9 states have call successors, (28) [2023-12-19 23:40:36,037 INFO L276 IsEmpty]: Start isEmpty. Operand 549 states and 661 transitions. [2023-12-19 23:40:36,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2023-12-19 23:40:36,038 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:40:36,038 INFO L195 NwaCegarLoop]: trace histogram [7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 23:40:36,048 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-19 23:40:36,244 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,SelfDestructingSolverStorable10 [2023-12-19 23:40:36,244 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:40:36,245 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:40:36,245 INFO L85 PathProgramCache]: Analyzing trace with hash 519410976, now seen corresponding path program 1 times [2023-12-19 23:40:36,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:40:36,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390571645] [2023-12-19 23:40:36,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:40:36,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:40:36,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:36,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-19 23:40:36,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:36,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-19 23:40:36,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:36,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 23:40:36,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:36,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 23:40:36,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:36,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 23:40:36,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:36,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 23:40:36,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:36,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-12-19 23:40:36,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:36,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 23:40:36,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:36,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-12-19 23:40:36,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:36,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-12-19 23:40:36,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:36,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 23:40:36,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:36,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-12-19 23:40:36,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:36,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-19 23:40:36,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:36,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-12-19 23:40:36,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:36,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-12-19 23:40:36,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:36,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2023-12-19 23:40:36,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:36,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-12-19 23:40:36,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:36,392 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 73 proven. 39 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2023-12-19 23:40:36,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:40:36,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390571645] [2023-12-19 23:40:36,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [390571645] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 23:40:36,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1662076602] [2023-12-19 23:40:36,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:40:36,393 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 23:40:36,393 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 23:40:36,394 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 23:40:36,396 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-19 23:40:36,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:36,478 INFO L262 TraceCheckSpWp]: Trace formula consists of 493 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-19 23:40:36,481 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 23:40:36,564 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 141 proven. 7 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-12-19 23:40:36,564 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 23:40:36,825 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 85 proven. 39 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-12-19 23:40:36,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1662076602] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-19 23:40:36,825 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-19 23:40:36,825 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 8, 8] total 21 [2023-12-19 23:40:36,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521534222] [2023-12-19 23:40:36,826 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-19 23:40:36,826 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2023-12-19 23:40:36,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:40:36,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2023-12-19 23:40:36,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=354, Unknown=0, NotChecked=0, Total=420 [2023-12-19 23:40:36,827 INFO L87 Difference]: Start difference. First operand 549 states and 661 transitions. Second operand has 21 states, 18 states have (on average 8.88888888888889) internal successors, (160), 15 states have internal predecessors, (160), 7 states have call successors, (38), 7 states have call predecessors, (38), 11 states have return successors, (33), 10 states have call predecessors, (33), 7 states have call successors, (33) [2023-12-19 23:40:37,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:40:37,582 INFO L93 Difference]: Finished difference Result 1119 states and 1367 transitions. [2023-12-19 23:40:37,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-12-19 23:40:37,583 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 18 states have (on average 8.88888888888889) internal successors, (160), 15 states have internal predecessors, (160), 7 states have call successors, (38), 7 states have call predecessors, (38), 11 states have return successors, (33), 10 states have call predecessors, (33), 7 states have call successors, (33) Word has length 146 [2023-12-19 23:40:37,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:40:37,586 INFO L225 Difference]: With dead ends: 1119 [2023-12-19 23:40:37,586 INFO L226 Difference]: Without dead ends: 572 [2023-12-19 23:40:37,589 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 371 GetRequests, 327 SyntacticMatches, 1 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 350 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=405, Invalid=1575, Unknown=0, NotChecked=0, Total=1980 [2023-12-19 23:40:37,590 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 354 mSDsluCounter, 423 mSDsCounter, 0 mSdLazyCounter, 927 mSolverCounterSat, 131 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 358 SdHoareTripleChecker+Valid, 483 SdHoareTripleChecker+Invalid, 1058 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 131 IncrementalHoareTripleChecker+Valid, 927 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-19 23:40:37,590 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [358 Valid, 483 Invalid, 1058 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [131 Valid, 927 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-19 23:40:37,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 572 states. [2023-12-19 23:40:37,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 572 to 555. [2023-12-19 23:40:37,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 555 states, 392 states have (on average 1.183673469387755) internal successors, (464), 423 states have internal predecessors, (464), 86 states have call successors, (86), 75 states have call predecessors, (86), 76 states have return successors, (109), 77 states have call predecessors, (109), 86 states have call successors, (109) [2023-12-19 23:40:37,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 659 transitions. [2023-12-19 23:40:37,618 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 659 transitions. Word has length 146 [2023-12-19 23:40:37,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:40:37,619 INFO L495 AbstractCegarLoop]: Abstraction has 555 states and 659 transitions. [2023-12-19 23:40:37,619 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 18 states have (on average 8.88888888888889) internal successors, (160), 15 states have internal predecessors, (160), 7 states have call successors, (38), 7 states have call predecessors, (38), 11 states have return successors, (33), 10 states have call predecessors, (33), 7 states have call successors, (33) [2023-12-19 23:40:37,620 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 659 transitions. [2023-12-19 23:40:37,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2023-12-19 23:40:37,623 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:40:37,623 INFO L195 NwaCegarLoop]: trace histogram [7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 23:40:37,634 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 23:40:37,828 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 23:40:37,828 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:40:37,829 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:40:37,829 INFO L85 PathProgramCache]: Analyzing trace with hash -450002293, now seen corresponding path program 1 times [2023-12-19 23:40:37,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:40:37,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949468633] [2023-12-19 23:40:37,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:40:37,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:40:37,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:37,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-19 23:40:37,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:37,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-19 23:40:38,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:38,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 23:40:38,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:38,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 23:40:38,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:38,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 23:40:38,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:38,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 23:40:38,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:38,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-12-19 23:40:38,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:38,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 23:40:38,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:38,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-12-19 23:40:38,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:38,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-12-19 23:40:38,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:38,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 23:40:38,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:38,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-12-19 23:40:38,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:38,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-19 23:40:38,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:38,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-19 23:40:38,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:38,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2023-12-19 23:40:38,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:38,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-12-19 23:40:38,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:38,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2023-12-19 23:40:38,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:38,115 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 83 proven. 21 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2023-12-19 23:40:38,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:40:38,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949468633] [2023-12-19 23:40:38,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [949468633] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 23:40:38,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2128970965] [2023-12-19 23:40:38,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:40:38,116 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 23:40:38,116 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 23:40:38,117 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 23:40:38,119 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-19 23:40:38,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:38,242 INFO L262 TraceCheckSpWp]: Trace formula consists of 493 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-19 23:40:38,248 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 23:40:38,348 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 98 proven. 22 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2023-12-19 23:40:38,348 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 23:40:38,677 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 81 proven. 36 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2023-12-19 23:40:38,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2128970965] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-19 23:40:38,677 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-19 23:40:38,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 8, 13] total 20 [2023-12-19 23:40:38,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047221847] [2023-12-19 23:40:38,679 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-19 23:40:38,679 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-12-19 23:40:38,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:40:38,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-12-19 23:40:38,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=278, Unknown=0, NotChecked=0, Total=380 [2023-12-19 23:40:38,681 INFO L87 Difference]: Start difference. First operand 555 states and 659 transitions. Second operand has 20 states, 20 states have (on average 7.45) internal successors, (149), 17 states have internal predecessors, (149), 12 states have call successors, (38), 10 states have call predecessors, (38), 13 states have return successors, (34), 12 states have call predecessors, (34), 12 states have call successors, (34) [2023-12-19 23:40:39,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:40:39,302 INFO L93 Difference]: Finished difference Result 1093 states and 1320 transitions. [2023-12-19 23:40:39,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-12-19 23:40:39,303 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 7.45) internal successors, (149), 17 states have internal predecessors, (149), 12 states have call successors, (38), 10 states have call predecessors, (38), 13 states have return successors, (34), 12 states have call predecessors, (34), 12 states have call successors, (34) Word has length 147 [2023-12-19 23:40:39,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:40:39,306 INFO L225 Difference]: With dead ends: 1093 [2023-12-19 23:40:39,306 INFO L226 Difference]: Without dead ends: 734 [2023-12-19 23:40:39,307 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 372 GetRequests, 329 SyntacticMatches, 7 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 294 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=412, Invalid=994, Unknown=0, NotChecked=0, Total=1406 [2023-12-19 23:40:39,307 INFO L413 NwaCegarLoop]: 122 mSDtfsCounter, 384 mSDsluCounter, 455 mSDsCounter, 0 mSdLazyCounter, 871 mSolverCounterSat, 145 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 387 SdHoareTripleChecker+Valid, 577 SdHoareTripleChecker+Invalid, 1016 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 145 IncrementalHoareTripleChecker+Valid, 871 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-19 23:40:39,308 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [387 Valid, 577 Invalid, 1016 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [145 Valid, 871 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-19 23:40:39,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 734 states. [2023-12-19 23:40:39,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 734 to 670. [2023-12-19 23:40:39,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 670 states, 472 states have (on average 1.1843220338983051) internal successors, (559), 507 states have internal predecessors, (559), 104 states have call successors, (104), 95 states have call predecessors, (104), 93 states have return successors, (129), 93 states have call predecessors, (129), 104 states have call successors, (129) [2023-12-19 23:40:39,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 670 states to 670 states and 792 transitions. [2023-12-19 23:40:39,339 INFO L78 Accepts]: Start accepts. Automaton has 670 states and 792 transitions. Word has length 147 [2023-12-19 23:40:39,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:40:39,339 INFO L495 AbstractCegarLoop]: Abstraction has 670 states and 792 transitions. [2023-12-19 23:40:39,339 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 7.45) internal successors, (149), 17 states have internal predecessors, (149), 12 states have call successors, (38), 10 states have call predecessors, (38), 13 states have return successors, (34), 12 states have call predecessors, (34), 12 states have call successors, (34) [2023-12-19 23:40:39,339 INFO L276 IsEmpty]: Start isEmpty. Operand 670 states and 792 transitions. [2023-12-19 23:40:39,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2023-12-19 23:40:39,341 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:40:39,341 INFO L195 NwaCegarLoop]: trace histogram [9, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-12-19 23:40:39,350 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-12-19 23:40:39,548 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 23:40:39,548 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:40:39,549 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:40:39,549 INFO L85 PathProgramCache]: Analyzing trace with hash 2048089692, now seen corresponding path program 1 times [2023-12-19 23:40:39,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:40:39,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124080646] [2023-12-19 23:40:39,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:40:39,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:40:39,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:39,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-19 23:40:39,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:39,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-19 23:40:39,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:39,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 23:40:39,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:39,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 23:40:39,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:39,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 23:40:39,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:39,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 23:40:39,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:39,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-12-19 23:40:39,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:39,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 23:40:39,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:39,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-12-19 23:40:39,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:39,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-12-19 23:40:39,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:39,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 23:40:39,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:39,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-12-19 23:40:39,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:39,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-19 23:40:39,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:39,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-19 23:40:39,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:39,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-19 23:40:39,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:39,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 23:40:39,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:39,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 23:40:39,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:39,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 23:40:39,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:39,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-19 23:40:39,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:39,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2023-12-19 23:40:39,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:39,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2023-12-19 23:40:39,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:39,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2023-12-19 23:40:39,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:39,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2023-12-19 23:40:39,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:39,728 INFO L134 CoverageAnalysis]: Checked inductivity of 332 backedges. 112 proven. 8 refuted. 0 times theorem prover too weak. 212 trivial. 0 not checked. [2023-12-19 23:40:39,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:40:39,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124080646] [2023-12-19 23:40:39,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1124080646] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 23:40:39,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2142529448] [2023-12-19 23:40:39,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:40:39,728 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 23:40:39,728 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 23:40:39,790 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 23:40:39,812 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-19 23:40:39,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:39,889 INFO L262 TraceCheckSpWp]: Trace formula consists of 607 conjuncts, 28 conjunts are in the unsatisfiable core [2023-12-19 23:40:39,894 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 23:40:40,103 INFO L134 CoverageAnalysis]: Checked inductivity of 332 backedges. 112 proven. 75 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-12-19 23:40:40,104 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 23:40:40,580 INFO L134 CoverageAnalysis]: Checked inductivity of 332 backedges. 80 proven. 112 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2023-12-19 23:40:40,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2142529448] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-19 23:40:40,581 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-19 23:40:40,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 10, 15] total 24 [2023-12-19 23:40:40,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832047451] [2023-12-19 23:40:40,581 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-19 23:40:40,582 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-12-19 23:40:40,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:40:40,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-12-19 23:40:40,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2023-12-19 23:40:40,583 INFO L87 Difference]: Start difference. First operand 670 states and 792 transitions. Second operand has 24 states, 24 states have (on average 8.208333333333334) internal successors, (197), 20 states have internal predecessors, (197), 13 states have call successors, (45), 10 states have call predecessors, (45), 15 states have return successors, (48), 14 states have call predecessors, (48), 13 states have call successors, (48) [2023-12-19 23:40:42,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:40:42,168 INFO L93 Difference]: Finished difference Result 1936 states and 2342 transitions. [2023-12-19 23:40:42,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2023-12-19 23:40:42,168 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 8.208333333333334) internal successors, (197), 20 states have internal predecessors, (197), 13 states have call successors, (45), 10 states have call predecessors, (45), 15 states have return successors, (48), 14 states have call predecessors, (48), 13 states have call successors, (48) Word has length 190 [2023-12-19 23:40:42,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:40:42,169 INFO L225 Difference]: With dead ends: 1936 [2023-12-19 23:40:42,169 INFO L226 Difference]: Without dead ends: 0 [2023-12-19 23:40:42,173 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 488 GetRequests, 412 SyntacticMatches, 9 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1273 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=973, Invalid=3719, Unknown=0, NotChecked=0, Total=4692 [2023-12-19 23:40:42,174 INFO L413 NwaCegarLoop]: 194 mSDtfsCounter, 1176 mSDsluCounter, 1076 mSDsCounter, 0 mSdLazyCounter, 2089 mSolverCounterSat, 624 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1176 SdHoareTripleChecker+Valid, 1270 SdHoareTripleChecker+Invalid, 2713 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 624 IncrementalHoareTripleChecker+Valid, 2089 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-19 23:40:42,174 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1176 Valid, 1270 Invalid, 2713 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [624 Valid, 2089 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-19 23:40:42,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-19 23:40:42,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-19 23:40:42,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 23:40:42,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-19 23:40:42,175 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 190 [2023-12-19 23:40:42,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:40:42,175 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-19 23:40:42,175 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 8.208333333333334) internal successors, (197), 20 states have internal predecessors, (197), 13 states have call successors, (45), 10 states have call predecessors, (45), 15 states have return successors, (48), 14 states have call predecessors, (48), 13 states have call successors, (48) [2023-12-19 23:40:42,175 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-19 23:40:42,176 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-19 23:40:42,178 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-19 23:40:42,200 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-12-19 23:40:42,403 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,SelfDestructingSolverStorable13 [2023-12-19 23:40:42,404 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-19 23:40:47,645 INFO L899 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 206 213) no Hoare annotation was computed. [2023-12-19 23:40:47,645 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 206 213) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|))) (and (or .cse0 (< ~waterLevel~0 2) (= 0 ~systemActive~0)) (or .cse0 (not (= 1 ~systemActive~0))))) [2023-12-19 23:40:47,645 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 139 145) no Hoare annotation was computed. [2023-12-19 23:40:47,645 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 139 145) the Hoare annotation is: true [2023-12-19 23:40:47,647 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 915 926) the Hoare annotation is: (let ((.cse9 (= ~methaneLevelCritical~0 0))) (let ((.cse2 (= |old(~methaneLevelCritical~0)| 0)) (.cse12 (= 1 ~systemActive~0)) (.cse11 (not .cse9))) (let ((.cse5 (and (<= 1 ~pumpRunning~0) .cse12 .cse11)) (.cse3 (< 1 ~waterLevel~0)) (.cse4 (< ~switchedOnBeforeTS~0 1)) (.cse0 (< ~pumpRunning~0 1)) (.cse7 (not .cse2)) (.cse10 (not (= 2 ~waterLevel~0))) (.cse6 (< 2 ~waterLevel~0)) (.cse8 (not (= ~pumpRunning~0 0))) (.cse1 (not .cse12))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (or .cse6 .cse7 .cse8 .cse9 .cse1) (or .cse0 .cse1 .cse10 .cse2 .cse5) (or .cse0 .cse7 .cse9 .cse1 .cse3 .cse4) (or .cse0 .cse7 .cse9 .cse1 .cse10) (or .cse6 .cse8 .cse1 .cse2 .cse11))))) [2023-12-19 23:40:47,647 INFO L899 garLoopResultBuilder]: For program point L919-1(lines 915 926) no Hoare annotation was computed. [2023-12-19 23:40:47,652 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 915 926) no Hoare annotation was computed. [2023-12-19 23:40:47,652 INFO L899 garLoopResultBuilder]: For program point L320(lines 320 324) no Hoare annotation was computed. [2023-12-19 23:40:47,652 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 306 335) no Hoare annotation was computed. [2023-12-19 23:40:47,652 INFO L902 garLoopResultBuilder]: At program point L320-1(lines 320 324) the Hoare annotation is: true [2023-12-19 23:40:47,652 INFO L902 garLoopResultBuilder]: At program point L316-2(lines 316 330) the Hoare annotation is: true [2023-12-19 23:40:47,652 INFO L902 garLoopResultBuilder]: At program point L312(line 312) the Hoare annotation is: true [2023-12-19 23:40:47,652 INFO L899 garLoopResultBuilder]: For program point L312-1(line 312) no Hoare annotation was computed. [2023-12-19 23:40:47,652 INFO L899 garLoopResultBuilder]: For program point L331(lines 306 335) no Hoare annotation was computed. [2023-12-19 23:40:47,652 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 306 335) the Hoare annotation is: true [2023-12-19 23:40:47,652 INFO L899 garLoopResultBuilder]: For program point L327(line 327) no Hoare annotation was computed. [2023-12-19 23:40:47,652 INFO L895 garLoopResultBuilder]: At program point L192(line 192) the Hoare annotation is: (let ((.cse0 (< |old(~switchedOnBeforeTS~0)| 1)) (.cse2 (< |old(~pumpRunning~0)| 1)) (.cse1 (not (= 1 ~systemActive~0))) (.cse3 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 .cse1 (< 0 |old(~waterLevel~0)|) .cse2) (or .cse1 (not (= |old(~waterLevel~0)| 2)) .cse2) (or (not (= |old(~waterLevel~0)| 1)) .cse0 .cse1 .cse2) (or .cse3 (and (= ~pumpRunning~0 0) (= |old(~waterLevel~0)| ~waterLevel~0)) .cse1 (< 2 |old(~waterLevel~0)|)) (or .cse3 (not (= 0 ~systemActive~0))))) [2023-12-19 23:40:47,652 INFO L899 garLoopResultBuilder]: For program point L192-1(lines 173 197) no Hoare annotation was computed. [2023-12-19 23:40:47,652 INFO L899 garLoopResultBuilder]: For program point L126-1(lines 126 132) no Hoare annotation was computed. [2023-12-19 23:40:47,652 INFO L899 garLoopResultBuilder]: For program point L506(lines 506 512) no Hoare annotation was computed. [2023-12-19 23:40:47,652 INFO L899 garLoopResultBuilder]: For program point L895(lines 895 899) no Hoare annotation was computed. [2023-12-19 23:40:47,652 INFO L899 garLoopResultBuilder]: For program point L895-2(lines 891 902) no Hoare annotation was computed. [2023-12-19 23:40:47,653 INFO L899 garLoopResultBuilder]: For program point L119(lines 119 125) no Hoare annotation was computed. [2023-12-19 23:40:47,653 INFO L895 garLoopResultBuilder]: At program point L503(line 503) the Hoare annotation is: (let ((.cse0 (= ~methaneLevelCritical~0 0))) (let ((.cse6 (<= |timeShift___utac_acc__Specification5_spec__3_~tmp~5#1| ~waterLevel~0)) (.cse18 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse20 (= 1 ~systemActive~0)) (.cse14 (not .cse0)) (.cse4 (= ~pumpRunning~0 0)) (.cse5 (<= ~waterLevel~0 0)) (.cse12 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse15 (<= |timeShift___utac_acc__Specification5_spec__3_~tmp~5#1| 1)) (.cse7 (<= 1 ~switchedOnBeforeTS~0))) (let ((.cse3 (and .cse4 .cse5 .cse12 .cse15 .cse7)) (.cse9 (and (<= 1 ~pumpRunning~0) .cse18 .cse20 .cse14 .cse5 .cse12 .cse15 .cse7)) (.cse17 (not (= |old(~waterLevel~0)| 2))) (.cse13 (not (= 0 ~systemActive~0))) (.cse10 (and .cse18 .cse5 .cse6 .cse7)) (.cse1 (< |old(~switchedOnBeforeTS~0)| 1)) (.cse19 (< 0 |old(~waterLevel~0)|)) (.cse8 (< |old(~pumpRunning~0)| 1)) (.cse11 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (not .cse20))) (and (or (< 1 |old(~waterLevel~0)|) .cse0 .cse1 .cse2 .cse3 (and .cse4 .cse5 .cse6 .cse7) .cse8 .cse9 .cse10) (or .cse11 (and .cse4 .cse12) .cse13) (let ((.cse16 (= ~waterLevel~0 1))) (or (and .cse4 .cse14 .cse15 .cse16 .cse7) .cse2 .cse17 .cse8 (and .cse18 .cse15 .cse16 .cse7))) (or .cse0 .cse1 .cse2 .cse19 .cse3 .cse8 .cse9) (or .cse11 .cse17 .cse13) (or (not (= |old(~waterLevel~0)| 1)) .cse1 .cse2 .cse14 .cse8 .cse10) (or .cse1 .cse2 .cse19 .cse14 .cse8 (and .cse18 .cse12 .cse15 .cse7)) (or .cse11 .cse2 (and .cse4 (<= ~waterLevel~0 1) .cse12 .cse15) (< 2 |old(~waterLevel~0)|)))))) [2023-12-19 23:40:47,653 INFO L899 garLoopResultBuilder]: For program point L503-1(line 503) no Hoare annotation was computed. [2023-12-19 23:40:47,653 INFO L899 garLoopResultBuilder]: For program point L119-2(lines 115 137) no Hoare annotation was computed. [2023-12-19 23:40:47,653 INFO L899 garLoopResultBuilder]: For program point L181(lines 181 189) no Hoare annotation was computed. [2023-12-19 23:40:47,653 INFO L899 garLoopResultBuilder]: For program point L177(lines 177 194) no Hoare annotation was computed. [2023-12-19 23:40:47,657 INFO L899 garLoopResultBuilder]: For program point L54(line 54) no Hoare annotation was computed. [2023-12-19 23:40:47,657 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 112 138) the Hoare annotation is: (let ((.cse8 (= ~pumpRunning~0 0)) (.cse4 (= ~switchedOnBeforeTS~0 |old(~switchedOnBeforeTS~0)|)) (.cse5 (= |old(~waterLevel~0)| ~waterLevel~0))) (let ((.cse0 (< 1 |old(~waterLevel~0)|)) (.cse1 (not (= 1 ~systemActive~0))) (.cse3 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse9 (= 2 ~waterLevel~0)) (.cse10 (not (= |old(~waterLevel~0)| 2))) (.cse2 (< |old(~pumpRunning~0)| 1)) (.cse6 (and .cse8 .cse4 .cse5)) (.cse7 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 (< |old(~switchedOnBeforeTS~0)| 1) .cse1 .cse2 (and .cse3 .cse4 .cse5)) (or .cse0 .cse6 .cse7 .cse1) (or .cse7 .cse1 (and .cse8 .cse9 .cse4) .cse10) (or .cse1 (and .cse3 .cse9 .cse4) .cse10 .cse2) (or .cse6 .cse7 (not (= 0 ~systemActive~0)))))) [2023-12-19 23:40:47,658 INFO L895 garLoopResultBuilder]: At program point L488(line 488) the Hoare annotation is: (let ((.cse8 (= ~pumpRunning~0 0)) (.cse4 (= ~switchedOnBeforeTS~0 |old(~switchedOnBeforeTS~0)|)) (.cse5 (= |old(~waterLevel~0)| ~waterLevel~0))) (let ((.cse0 (< 1 |old(~waterLevel~0)|)) (.cse1 (not (= 1 ~systemActive~0))) (.cse3 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse9 (= 2 ~waterLevel~0)) (.cse10 (not (= |old(~waterLevel~0)| 2))) (.cse2 (< |old(~pumpRunning~0)| 1)) (.cse6 (and .cse8 .cse4 .cse5)) (.cse7 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 (< |old(~switchedOnBeforeTS~0)| 1) .cse1 .cse2 (and .cse3 .cse4 .cse5)) (or .cse0 .cse6 .cse7 .cse1) (or .cse7 .cse1 (and .cse8 .cse9 .cse4) .cse10) (or .cse1 (and .cse3 .cse9 .cse4) .cse10 .cse2) (or .cse6 .cse7 (not (= 0 ~systemActive~0)))))) [2023-12-19 23:40:47,658 INFO L899 garLoopResultBuilder]: For program point L488-1(line 488) no Hoare annotation was computed. [2023-12-19 23:40:47,658 INFO L895 garLoopResultBuilder]: At program point L187(line 187) the Hoare annotation is: (let ((.cse3 (not (= |old(~waterLevel~0)| 2))) (.cse5 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse6 (<= 1 ~switchedOnBeforeTS~0)) (.cse8 (< |old(~switchedOnBeforeTS~0)| 1)) (.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= ~methaneLevelCritical~0 0))) (.cse2 (= |timeShift_processEnvironment_~tmp~1#1| 0)) (.cse4 (< |old(~pumpRunning~0)| 1)) (.cse7 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or (and .cse5 .cse6) .cse0 .cse3 .cse4) (or .cse0 .cse3 .cse4 (= ~waterLevel~0 1)) (or .cse7 .cse0 (< 2 |old(~waterLevel~0)|)) (or (not (= |old(~waterLevel~0)| 1)) .cse8 .cse0 (and .cse5 (<= ~waterLevel~0 0) .cse6) .cse4) (or (and .cse5 (= |old(~waterLevel~0)| ~waterLevel~0) .cse6) .cse8 .cse0 (< 0 |old(~waterLevel~0)|) .cse4) (or (< 1 |old(~waterLevel~0)|) .cse8 .cse0 .cse1 .cse2 .cse4) (or .cse7 (not (= 0 ~systemActive~0))))) [2023-12-19 23:40:47,661 INFO L899 garLoopResultBuilder]: For program point L505(lines 505 515) no Hoare annotation was computed. [2023-12-19 23:40:47,661 INFO L895 garLoopResultBuilder]: At program point L183(line 183) the Hoare annotation is: (let ((.cse3 (< |old(~switchedOnBeforeTS~0)| 1)) (.cse4 (not (= 1 ~systemActive~0))) (.cse5 (< |old(~pumpRunning~0)| 1)) (.cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse1 (not (= ~methaneLevelCritical~0 0))) (.cse2 (<= 1 ~switchedOnBeforeTS~0)) (.cse6 (not (= |old(~pumpRunning~0)| 0)))) (and (or (and .cse0 .cse1 (<= ~waterLevel~0 0) .cse2) (not (= |old(~waterLevel~0)| 1)) .cse3 .cse4 .cse5) (or .cse3 .cse4 (< 0 |old(~waterLevel~0)|) (and .cse0 .cse1 (= |old(~waterLevel~0)| ~waterLevel~0) .cse2) .cse5) (or .cse6 .cse4 (< 2 |old(~waterLevel~0)|)) (or .cse4 (not (= |old(~waterLevel~0)| 2)) .cse5 (and .cse0 .cse1 (= ~waterLevel~0 1) .cse2)) (or .cse6 (not (= 0 ~systemActive~0))))) [2023-12-19 23:40:47,661 INFO L899 garLoopResultBuilder]: For program point L501(lines 501 518) no Hoare annotation was computed. [2023-12-19 23:40:47,661 INFO L899 garLoopResultBuilder]: For program point L501-1(lines 493 521) no Hoare annotation was computed. [2023-12-19 23:40:47,661 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 112 138) no Hoare annotation was computed. [2023-12-19 23:40:47,661 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 54) no Hoare annotation was computed. [2023-12-19 23:40:47,661 INFO L899 garLoopResultBuilder]: For program point L436(lines 436 442) no Hoare annotation was computed. [2023-12-19 23:40:47,661 INFO L899 garLoopResultBuilder]: For program point L436-1(lines 436 442) no Hoare annotation was computed. [2023-12-19 23:40:47,661 INFO L895 garLoopResultBuilder]: At program point L461(lines 416 463) the Hoare annotation is: (let ((.cse0 (<= 1 ~pumpRunning~0)) (.cse5 (= 2 ~waterLevel~0)) (.cse4 (= ~pumpRunning~0 0)) (.cse1 (<= ~waterLevel~0 1)) (.cse2 (= 1 ~systemActive~0)) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 .cse2 .cse3 (<= 1 ~switchedOnBeforeTS~0)) (and .cse4 .cse5 .cse2 .cse3) (and .cse4 .cse3 (= 0 ~systemActive~0)) (and .cse0 .cse5 .cse2 .cse3) (and .cse4 .cse1 .cse2 .cse3))) [2023-12-19 23:40:47,661 INFO L895 garLoopResultBuilder]: At program point L428(line 428) the Hoare annotation is: (let ((.cse0 (<= 1 ~pumpRunning~0)) (.cse5 (= 2 ~waterLevel~0)) (.cse4 (= ~pumpRunning~0 0)) (.cse1 (<= ~waterLevel~0 1)) (.cse2 (= 1 ~systemActive~0)) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 .cse2 .cse3 (<= 1 ~switchedOnBeforeTS~0)) (and .cse4 .cse5 .cse2 .cse3) (and .cse4 .cse3 (= 0 ~systemActive~0)) (and .cse0 .cse5 .cse2 .cse3) (and .cse4 .cse1 .cse2 .cse3))) [2023-12-19 23:40:47,661 INFO L899 garLoopResultBuilder]: For program point L392(lines 392 399) no Hoare annotation was computed. [2023-12-19 23:40:47,661 INFO L899 garLoopResultBuilder]: For program point L392-2(lines 392 399) no Hoare annotation was computed. [2023-12-19 23:40:47,661 INFO L899 garLoopResultBuilder]: For program point L293(lines 293 299) no Hoare annotation was computed. [2023-12-19 23:40:47,661 INFO L899 garLoopResultBuilder]: For program point L293-1(lines 293 299) no Hoare annotation was computed. [2023-12-19 23:40:47,662 INFO L899 garLoopResultBuilder]: For program point L417(lines 416 463) no Hoare annotation was computed. [2023-12-19 23:40:47,662 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-12-19 23:40:47,662 INFO L899 garLoopResultBuilder]: For program point L446(lines 446 459) no Hoare annotation was computed. [2023-12-19 23:40:47,662 INFO L895 garLoopResultBuilder]: At program point L438(line 438) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse4 (<= 1 ~pumpRunning~0)) (.cse2 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse3 (<= ~waterLevel~0 2))) (or (and .cse0 .cse1 (= 0 ~systemActive~0)) (and .cse0 .cse2 .cse1 .cse3) (and .cse4 (= 2 ~waterLevel~0) .cse2 .cse1) (and .cse4 .cse2 .cse1 .cse3 (<= 1 ~switchedOnBeforeTS~0)))) [2023-12-19 23:40:47,662 INFO L899 garLoopResultBuilder]: For program point L467(lines 406 471) no Hoare annotation was computed. [2023-12-19 23:40:47,664 INFO L899 garLoopResultBuilder]: For program point L426(lines 426 432) no Hoare annotation was computed. [2023-12-19 23:40:47,665 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-12-19 23:40:47,666 INFO L899 garLoopResultBuilder]: For program point L426-1(lines 426 432) no Hoare annotation was computed. [2023-12-19 23:40:47,666 INFO L895 garLoopResultBuilder]: At program point L464(lines 415 465) the Hoare annotation is: false [2023-12-19 23:40:47,666 INFO L895 garLoopResultBuilder]: At program point L295(line 295) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (= 1 ~systemActive~0) .cse0) (and (<= 2 ~waterLevel~0) .cse0 (not (= 0 ~systemActive~0))))) [2023-12-19 23:40:47,666 INFO L899 garLoopResultBuilder]: For program point L452(lines 452 458) no Hoare annotation was computed. [2023-12-19 23:40:47,666 INFO L895 garLoopResultBuilder]: At program point L452-2(lines 446 459) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse4 (<= 1 ~pumpRunning~0)) (.cse2 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse3 (<= ~waterLevel~0 2))) (or (and .cse0 .cse1 (= 0 ~systemActive~0)) (and .cse0 .cse2 .cse1 .cse3) (and .cse4 (= 2 ~waterLevel~0) .cse2 .cse1) (and .cse4 .cse2 .cse1 .cse3 (<= 1 ~switchedOnBeforeTS~0)))) [2023-12-19 23:40:47,666 INFO L895 garLoopResultBuilder]: At program point L161(line 161) the Hoare annotation is: (let ((.cse3 (= |old(~pumpRunning~0)| 0))) (let ((.cse0 (not .cse3)) (.cse1 (and (= ~pumpRunning~0 0) (= |processEnvironment__wrappee__highWaterSensor_~tmp~0#1| 0) .cse3)) (.cse2 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 .cse2 (< 0 ~waterLevel~0)) (or (not (= ~waterLevel~0 1)) .cse0 .cse1 .cse2) (or .cse0 .cse1 .cse2 (not (= 2 ~waterLevel~0))) (or .cse2 (< 1 ~waterLevel~0) (< ~switchedOnBeforeTS~0 1) (< |old(~pumpRunning~0)| 1))))) [2023-12-19 23:40:47,666 INFO L899 garLoopResultBuilder]: For program point L155(lines 155 163) no Hoare annotation was computed. [2023-12-19 23:40:47,666 INFO L899 garLoopResultBuilder]: For program point L151(lines 151 168) no Hoare annotation was computed. [2023-12-19 23:40:47,666 INFO L899 garLoopResultBuilder]: For program point L279(lines 279 283) no Hoare annotation was computed. [2023-12-19 23:40:47,666 INFO L899 garLoopResultBuilder]: For program point L279-2(lines 279 283) no Hoare annotation was computed. [2023-12-19 23:40:47,666 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 147 171) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (not (= 1 ~systemActive~0))) (.cse3 (< 1 ~waterLevel~0))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse1 .cse2 (not (= 2 ~waterLevel~0))) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse2 .cse3 (< ~switchedOnBeforeTS~0 1) (< |old(~pumpRunning~0)| 1)))) [2023-12-19 23:40:47,666 INFO L895 garLoopResultBuilder]: At program point L166(line 166) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (< 2 ~waterLevel~0) (not (= |old(~pumpRunning~0)| 0)) .cse0) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0 (< 1 ~waterLevel~0) (< ~switchedOnBeforeTS~0 1) (< |old(~pumpRunning~0)| 1)))) [2023-12-19 23:40:47,666 INFO L899 garLoopResultBuilder]: For program point L166-1(lines 147 171) no Hoare annotation was computed. [2023-12-19 23:40:47,666 INFO L899 garLoopResultBuilder]: For program point isHighWaterSensorDry_returnLabel#1(lines 968 981) no Hoare annotation was computed. [2023-12-19 23:40:47,667 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 147 171) no Hoare annotation was computed. [2023-12-19 23:40:47,668 INFO L899 garLoopResultBuilder]: For program point L972(lines 972 978) no Hoare annotation was computed. [2023-12-19 23:40:47,668 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 903 914) no Hoare annotation was computed. [2023-12-19 23:40:47,668 INFO L899 garLoopResultBuilder]: For program point L907-1(lines 903 914) no Hoare annotation was computed. [2023-12-19 23:40:47,668 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 903 914) the Hoare annotation is: (let ((.cse1 (= 2 ~waterLevel~0)) (.cse3 (not (= |old(~waterLevel~0)| 2))) (.cse0 (< ~pumpRunning~0 1)) (.cse6 (< 1 |old(~waterLevel~0)|)) (.cse4 (not (= ~pumpRunning~0 0))) (.cse2 (not (= 1 ~systemActive~0))) (.cse5 (= |old(~waterLevel~0)| ~waterLevel~0))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse1 .cse2 .cse3) (or .cse4 .cse5 (not (= 0 ~systemActive~0))) (or .cse6 .cse0 .cse2 (< ~switchedOnBeforeTS~0 1) .cse5) (or .cse6 .cse4 .cse2 .cse5))) [2023-12-19 23:40:47,668 INFO L899 garLoopResultBuilder]: For program point isPumpRunningEXIT(lines 225 233) no Hoare annotation was computed. [2023-12-19 23:40:47,668 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 225 233) the Hoare annotation is: true [2023-12-19 23:40:47,674 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 23:40:47,675 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-19 23:40:47,683 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.12 11:40:47 BoogieIcfgContainer [2023-12-19 23:40:47,684 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-19 23:40:47,684 INFO L158 Benchmark]: Toolchain (without parser) took 17914.25ms. Allocated memory was 420.5MB in the beginning and 660.6MB in the end (delta: 240.1MB). Free memory was 363.8MB in the beginning and 275.8MB in the end (delta: 88.0MB). Peak memory consumption was 373.6MB. Max. memory is 8.0GB. [2023-12-19 23:40:47,684 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 255.9MB. Free memory is still 203.1MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-19 23:40:47,684 INFO L158 Benchmark]: CACSL2BoogieTranslator took 330.72ms. Allocated memory is still 420.5MB. Free memory was 363.8MB in the beginning and 343.8MB in the end (delta: 19.9MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. [2023-12-19 23:40:47,684 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.43ms. Allocated memory is still 420.5MB. Free memory was 343.8MB in the beginning and 341.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-19 23:40:47,685 INFO L158 Benchmark]: Boogie Preprocessor took 38.41ms. Allocated memory is still 420.5MB. Free memory was 341.8MB in the beginning and 339.3MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-19 23:40:47,685 INFO L158 Benchmark]: RCFGBuilder took 324.03ms. Allocated memory is still 420.5MB. Free memory was 339.3MB in the beginning and 317.0MB in the end (delta: 22.3MB). Peak memory consumption was 22.0MB. Max. memory is 8.0GB. [2023-12-19 23:40:47,685 INFO L158 Benchmark]: TraceAbstraction took 17177.57ms. Allocated memory was 420.5MB in the beginning and 660.6MB in the end (delta: 240.1MB). Free memory was 316.2MB in the beginning and 275.8MB in the end (delta: 40.4MB). Peak memory consumption was 326.4MB. Max. memory is 8.0GB. [2023-12-19 23:40:47,686 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 255.9MB. Free memory is still 203.1MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 330.72ms. Allocated memory is still 420.5MB. Free memory was 363.8MB in the beginning and 343.8MB in the end (delta: 19.9MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 39.43ms. Allocated memory is still 420.5MB. Free memory was 343.8MB in the beginning and 341.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 38.41ms. Allocated memory is still 420.5MB. Free memory was 341.8MB in the beginning and 339.3MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 324.03ms. Allocated memory is still 420.5MB. Free memory was 339.3MB in the beginning and 317.0MB in the end (delta: 22.3MB). Peak memory consumption was 22.0MB. Max. memory is 8.0GB. * TraceAbstraction took 17177.57ms. Allocated memory was 420.5MB in the beginning and 660.6MB in the end (delta: 240.1MB). Free memory was 316.2MB in the beginning and 275.8MB in the end (delta: 40.4MB). Peak memory consumption was 326.4MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [49] - GenericResultAtLocation [Line: 58]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [58] - GenericResultAtLocation [Line: 96]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [96] - GenericResultAtLocation [Line: 304]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [304] - GenericResultAtLocation [Line: 405]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [405] - GenericResultAtLocation [Line: 472]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [472] - GenericResultAtLocation [Line: 522]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [522] - GenericResultAtLocation [Line: 888]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [888] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 54]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 75 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 17.1s, OverallIterations: 14, TraceHistogramMax: 9, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 5.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 5.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3869 SdHoareTripleChecker+Valid, 3.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3818 mSDsluCounter, 5386 SdHoareTripleChecker+Invalid, 2.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4124 mSDsCounter, 1576 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6753 IncrementalHoareTripleChecker+Invalid, 8329 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1576 mSolverCounterUnsat, 1262 mSDtfsCounter, 6753 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1908 GetRequests, 1598 SyntacticMatches, 25 SemanticMatches, 285 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2809 ImplicationChecksByTransitivity, 2.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1054occurred in iteration=8, InterpolantAutomatonStates: 221, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 14 MinimizatonAttempts, 434 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 24 LocationsWithAnnotation, 2001 PreInvPairs, 2264 NumberOfFragments, 1500 HoareAnnotationTreeSize, 2001 FormulaSimplifications, 20260 FormulaSimplificationTreeSizeReduction, 0.6s HoareSimplificationTime, 24 FormulaSimplificationsInter, 32746 FormulaSimplificationTreeSizeReductionInter, 4.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 3.7s InterpolantComputationTime, 1700 NumberOfCodeBlocks, 1700 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 2365 ConstructedInterpolants, 0 QuantifiedInterpolants, 5780 SizeOfPredicates, 11 NumberOfNonLiveVariables, 2340 ConjunctsInSsa, 76 ConjunctsInUnsatCore, 24 InterpolantComputations, 9 PerfectInterpolantSequences, 2230/2668 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: 416]: Loop Invariant Derived loop invariant: (((((((((1 <= pumpRunning) && (waterLevel <= 1)) && (1 == systemActive)) && (splverifierCounter == 0)) && (1 <= switchedOnBeforeTS)) || ((((pumpRunning == 0) && (2 == waterLevel)) && (1 == systemActive)) && (splverifierCounter == 0))) || (((pumpRunning == 0) && (splverifierCounter == 0)) && (0 == systemActive))) || ((((1 <= pumpRunning) && (2 == waterLevel)) && (1 == systemActive)) && (splverifierCounter == 0))) || ((((pumpRunning == 0) && (waterLevel <= 1)) && (1 == systemActive)) && (splverifierCounter == 0))) - InvariantResult [Line: 415]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 316]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2023-12-19 23:40:47,713 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...