/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product25.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-15 22:56:38,835 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-15 22:56:38,904 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-15 22:56:38,907 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-15 22:56:38,907 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-15 22:56:38,933 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-15 22:56:38,934 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-15 22:56:38,934 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-15 22:56:38,935 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-15 22:56:38,938 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-15 22:56:38,938 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-15 22:56:38,938 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-15 22:56:38,938 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-15 22:56:38,939 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-15 22:56:38,939 INFO L153 SettingsManager]: * Use SBE=true [2023-12-15 22:56:38,940 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-15 22:56:38,940 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-15 22:56:38,940 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-15 22:56:38,940 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-15 22:56:38,940 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-15 22:56:38,940 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-15 22:56:38,941 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-15 22:56:38,941 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-15 22:56:38,941 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-15 22:56:38,941 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-15 22:56:38,941 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-15 22:56:38,941 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-15 22:56:38,941 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-15 22:56:38,942 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-15 22:56:38,942 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-15 22:56:38,943 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-15 22:56:38,943 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-15 22:56:38,943 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 22:56:38,943 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-15 22:56:38,943 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-15 22:56:38,943 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-15 22:56:38,943 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-15 22:56:38,943 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-15 22:56:38,944 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-15 22:56:38,944 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-15 22:56:38,944 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-15 22:56:38,944 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-15 22:56:38,944 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-15 22:56:38,944 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-15 22:56:39,103 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-15 22:56:39,121 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-15 22:56:39,123 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-15 22:56:39,123 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-15 22:56:39,124 INFO L274 PluginConnector]: CDTParser initialized [2023-12-15 22:56:39,124 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product25.cil.c [2023-12-15 22:56:40,182 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-15 22:56:40,326 INFO L384 CDTParser]: Found 1 translation units. [2023-12-15 22:56:40,327 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product25.cil.c [2023-12-15 22:56:40,343 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d3b428d0/8b64675e70d94d6fa0e02316bf9d6cbc/FLAGf6db5dde4 [2023-12-15 22:56:40,354 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d3b428d0/8b64675e70d94d6fa0e02316bf9d6cbc [2023-12-15 22:56:40,356 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-15 22:56:40,357 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-15 22:56:40,358 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-15 22:56:40,362 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-15 22:56:40,368 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-15 22:56:40,369 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 10:56:40" (1/1) ... [2023-12-15 22:56:40,369 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@256a5b5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:56:40, skipping insertion in model container [2023-12-15 22:56:40,370 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 10:56:40" (1/1) ... [2023-12-15 22:56:40,406 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-15 22:56:40,505 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product25.cil.c[1605,1618] [2023-12-15 22:56:40,615 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 22:56:40,628 INFO L202 MainTranslator]: Completed pre-run [2023-12-15 22:56:40,634 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [49] [2023-12-15 22:56:40,635 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [58] [2023-12-15 22:56:40,636 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [127] [2023-12-15 22:56:40,636 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [306] [2023-12-15 22:56:40,636 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification4_spec.i","") [344] [2023-12-15 22:56:40,636 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [371] [2023-12-15 22:56:40,636 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [460] [2023-12-15 22:56:40,637 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [826] [2023-12-15 22:56:40,645 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product25.cil.c[1605,1618] [2023-12-15 22:56:40,704 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 22:56:40,716 INFO L206 MainTranslator]: Completed translation [2023-12-15 22:56:40,716 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:56:40 WrapperNode [2023-12-15 22:56:40,716 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-15 22:56:40,717 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-15 22:56:40,717 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-15 22:56:40,717 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-15 22:56:40,723 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:56:40" (1/1) ... [2023-12-15 22:56:40,738 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:56:40" (1/1) ... [2023-12-15 22:56:40,774 INFO L138 Inliner]: procedures = 53, calls = 95, calls flagged for inlining = 23, calls inlined = 17, statements flattened = 166 [2023-12-15 22:56:40,774 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-15 22:56:40,775 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-15 22:56:40,775 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-15 22:56:40,775 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-15 22:56:40,786 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:56:40" (1/1) ... [2023-12-15 22:56:40,786 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:56:40" (1/1) ... [2023-12-15 22:56:40,788 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:56:40" (1/1) ... [2023-12-15 22:56:40,804 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]. [2023-12-15 22:56:40,805 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:56:40" (1/1) ... [2023-12-15 22:56:40,805 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:56:40" (1/1) ... [2023-12-15 22:56:40,807 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:56:40" (1/1) ... [2023-12-15 22:56:40,809 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:56:40" (1/1) ... [2023-12-15 22:56:40,810 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:56:40" (1/1) ... [2023-12-15 22:56:40,811 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:56:40" (1/1) ... [2023-12-15 22:56:40,812 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-15 22:56:40,813 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-15 22:56:40,813 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-15 22:56:40,813 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-15 22:56:40,813 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:56:40" (1/1) ... [2023-12-15 22:56:40,817 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 22:56:40,827 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 22:56:40,881 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) [2023-12-15 22:56:40,897 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 [2023-12-15 22:56:40,904 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-15 22:56:40,913 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-12-15 22:56:40,913 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-12-15 22:56:40,913 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-12-15 22:56:40,913 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-12-15 22:56:40,913 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-12-15 22:56:40,913 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-12-15 22:56:40,913 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-12-15 22:56:40,913 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-12-15 22:56:40,914 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-15 22:56:40,914 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-12-15 22:56:40,914 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-12-15 22:56:40,914 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-15 22:56:40,914 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-15 22:56:40,967 INFO L241 CfgBuilder]: Building ICFG [2023-12-15 22:56:40,970 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-15 22:56:41,182 INFO L282 CfgBuilder]: Performing block encoding [2023-12-15 22:56:41,229 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-15 22:56:41,230 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-12-15 22:56:41,230 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 10:56:41 BoogieIcfgContainer [2023-12-15 22:56:41,230 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-15 22:56:41,232 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-15 22:56:41,232 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-15 22:56:41,234 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-15 22:56:41,247 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 10:56:40" (1/3) ... [2023-12-15 22:56:41,248 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@448c7066 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 10:56:41, skipping insertion in model container [2023-12-15 22:56:41,248 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:56:40" (2/3) ... [2023-12-15 22:56:41,248 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@448c7066 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 10:56:41, skipping insertion in model container [2023-12-15 22:56:41,248 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 10:56:41" (3/3) ... [2023-12-15 22:56:41,252 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product25.cil.c [2023-12-15 22:56:41,263 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-15 22:56:41,264 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-15 22:56:41,293 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-15 22:56:41,297 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;@474e6f5b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-15 22:56:41,298 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-15 22:56:41,306 INFO L276 IsEmpty]: Start isEmpty. Operand has 52 states, 37 states have (on average 1.5945945945945945) internal successors, (59), 43 states have internal predecessors, (59), 8 states have call successors, (8), 5 states have call predecessors, (8), 5 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) [2023-12-15 22:56:41,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-12-15 22:56:41,311 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:56:41,311 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:56:41,312 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:56:41,315 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:56:41,315 INFO L85 PathProgramCache]: Analyzing trace with hash -1259024857, now seen corresponding path program 1 times [2023-12-15 22:56:41,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:56:41,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825823533] [2023-12-15 22:56:41,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:56:41,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:56:41,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:41,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 22:56:41,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:56:41,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825823533] [2023-12-15 22:56:41,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1825823533] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:56:41,503 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:56:41,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-15 22:56:41,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771575035] [2023-12-15 22:56:41,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:56:41,508 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-15 22:56:41,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:56:41,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-15 22:56:41,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-15 22:56:41,545 INFO L87 Difference]: Start difference. First operand has 52 states, 37 states have (on average 1.5945945945945945) internal successors, (59), 43 states have internal predecessors, (59), 8 states have call successors, (8), 5 states have call predecessors, (8), 5 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 22:56:41,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:56:41,596 INFO L93 Difference]: Finished difference Result 102 states and 151 transitions. [2023-12-15 22:56:41,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-15 22:56:41,606 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2023-12-15 22:56:41,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:56:41,611 INFO L225 Difference]: With dead ends: 102 [2023-12-15 22:56:41,611 INFO L226 Difference]: Without dead ends: 47 [2023-12-15 22:56:41,614 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-15 22:56:41,621 INFO L413 NwaCegarLoop]: 58 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 22:56:41,622 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 58 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 22:56:41,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2023-12-15 22:56:41,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2023-12-15 22:56:41,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 34 states have (on average 1.4411764705882353) internal successors, (49), 39 states have internal predecessors, (49), 8 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2023-12-15 22:56:41,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 64 transitions. [2023-12-15 22:56:41,658 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 64 transitions. Word has length 12 [2023-12-15 22:56:41,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:56:41,659 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 64 transitions. [2023-12-15 22:56:41,659 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 22:56:41,659 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 64 transitions. [2023-12-15 22:56:41,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-12-15 22:56:41,661 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:56:41,661 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:56:41,661 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-15 22:56:41,662 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:56:41,663 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:56:41,663 INFO L85 PathProgramCache]: Analyzing trace with hash -335194843, now seen corresponding path program 1 times [2023-12-15 22:56:41,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:56:41,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326140233] [2023-12-15 22:56:41,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:56:41,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:56:41,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:41,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 22:56:41,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:56:41,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326140233] [2023-12-15 22:56:41,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1326140233] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:56:41,742 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:56:41,742 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 22:56:41,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349269465] [2023-12-15 22:56:41,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:56:41,743 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 22:56:41,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:56:41,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 22:56:41,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 22:56:41,744 INFO L87 Difference]: Start difference. First operand 47 states and 64 transitions. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 22:56:41,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:56:41,772 INFO L93 Difference]: Finished difference Result 67 states and 91 transitions. [2023-12-15 22:56:41,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 22:56:41,773 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2023-12-15 22:56:41,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:56:41,774 INFO L225 Difference]: With dead ends: 67 [2023-12-15 22:56:41,774 INFO L226 Difference]: Without dead ends: 39 [2023-12-15 22:56:41,774 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 22:56:41,775 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 11 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 22:56:41,775 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 74 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 22:56:41,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2023-12-15 22:56:41,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2023-12-15 22:56:41,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 29 states have (on average 1.4827586206896552) internal successors, (43), 34 states have internal predecessors, (43), 5 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2023-12-15 22:56:41,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 53 transitions. [2023-12-15 22:56:41,780 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 53 transitions. Word has length 13 [2023-12-15 22:56:41,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:56:41,780 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 53 transitions. [2023-12-15 22:56:41,780 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 22:56:41,780 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 53 transitions. [2023-12-15 22:56:41,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-12-15 22:56:41,781 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:56:41,781 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:56:41,781 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-15 22:56:41,781 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:56:41,781 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:56:41,781 INFO L85 PathProgramCache]: Analyzing trace with hash 1501157968, now seen corresponding path program 1 times [2023-12-15 22:56:41,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:56:41,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128195490] [2023-12-15 22:56:41,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:56:41,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:56:41,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:41,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 22:56:41,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:56:41,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128195490] [2023-12-15 22:56:41,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2128195490] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:56:41,901 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:56:41,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 22:56:41,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091038607] [2023-12-15 22:56:41,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:56:41,902 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-15 22:56:41,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:56:41,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-15 22:56:41,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-15 22:56:41,906 INFO L87 Difference]: Start difference. First operand 39 states and 53 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 22:56:41,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:56:41,985 INFO L93 Difference]: Finished difference Result 76 states and 105 transitions. [2023-12-15 22:56:41,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-15 22:56:41,986 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2023-12-15 22:56:41,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:56:41,987 INFO L225 Difference]: With dead ends: 76 [2023-12-15 22:56:41,987 INFO L226 Difference]: Without dead ends: 39 [2023-12-15 22:56:41,987 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-15 22:56:41,988 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 52 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 22:56:41,988 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 60 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 22:56:41,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2023-12-15 22:56:41,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2023-12-15 22:56:41,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 29 states have (on average 1.4482758620689655) internal successors, (42), 34 states have internal predecessors, (42), 5 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2023-12-15 22:56:41,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 52 transitions. [2023-12-15 22:56:41,994 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 52 transitions. Word has length 16 [2023-12-15 22:56:41,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:56:41,994 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 52 transitions. [2023-12-15 22:56:41,995 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 22:56:41,995 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 52 transitions. [2023-12-15 22:56:41,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-12-15 22:56:41,995 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:56:41,995 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:56:41,995 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-15 22:56:41,995 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:56:41,996 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:56:41,996 INFO L85 PathProgramCache]: Analyzing trace with hash 707568686, now seen corresponding path program 1 times [2023-12-15 22:56:41,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:56:41,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2045923790] [2023-12-15 22:56:41,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:56:41,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:56:42,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:42,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-15 22:56:42,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:42,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 22:56:42,075 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:56:42,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2045923790] [2023-12-15 22:56:42,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2045923790] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:56:42,076 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:56:42,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-15 22:56:42,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246078696] [2023-12-15 22:56:42,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:56:42,076 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-15 22:56:42,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:56:42,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-15 22:56:42,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-15 22:56:42,078 INFO L87 Difference]: Start difference. First operand 39 states and 52 transitions. Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-15 22:56:42,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:56:42,127 INFO L93 Difference]: Finished difference Result 107 states and 150 transitions. [2023-12-15 22:56:42,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-15 22:56:42,127 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 21 [2023-12-15 22:56:42,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:56:42,129 INFO L225 Difference]: With dead ends: 107 [2023-12-15 22:56:42,129 INFO L226 Difference]: Without dead ends: 70 [2023-12-15 22:56:42,130 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-15 22:56:42,130 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 27 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 22:56:42,131 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 119 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 22:56:42,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2023-12-15 22:56:42,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2023-12-15 22:56:42,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 52 states have (on average 1.4230769230769231) internal successors, (74), 60 states have internal predecessors, (74), 10 states have call successors, (10), 8 states have call predecessors, (10), 7 states have return successors, (11), 7 states have call predecessors, (11), 10 states have call successors, (11) [2023-12-15 22:56:42,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 95 transitions. [2023-12-15 22:56:42,140 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 95 transitions. Word has length 21 [2023-12-15 22:56:42,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:56:42,140 INFO L495 AbstractCegarLoop]: Abstraction has 70 states and 95 transitions. [2023-12-15 22:56:42,141 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-15 22:56:42,141 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 95 transitions. [2023-12-15 22:56:42,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-12-15 22:56:42,142 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:56:42,142 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:56:42,142 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-15 22:56:42,142 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:56:42,142 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:56:42,142 INFO L85 PathProgramCache]: Analyzing trace with hash -535693303, now seen corresponding path program 1 times [2023-12-15 22:56:42,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:56:42,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417627835] [2023-12-15 22:56:42,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:56:42,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:56:42,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:42,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-15 22:56:42,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:42,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 22:56:42,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:56:42,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417627835] [2023-12-15 22:56:42,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [417627835] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:56:42,168 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:56:42,168 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 22:56:42,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310168438] [2023-12-15 22:56:42,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:56:42,168 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 22:56:42,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:56:42,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 22:56:42,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 22:56:42,169 INFO L87 Difference]: Start difference. First operand 70 states and 95 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, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-15 22:56:42,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:56:42,195 INFO L93 Difference]: Finished difference Result 191 states and 265 transitions. [2023-12-15 22:56:42,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 22:56:42,196 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, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 23 [2023-12-15 22:56:42,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:56:42,197 INFO L225 Difference]: With dead ends: 191 [2023-12-15 22:56:42,197 INFO L226 Difference]: Without dead ends: 123 [2023-12-15 22:56:42,198 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 22:56:42,198 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 40 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 22:56:42,199 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 108 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 22:56:42,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2023-12-15 22:56:42,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 121. [2023-12-15 22:56:42,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 90 states have (on average 1.3888888888888888) internal successors, (125), 99 states have internal predecessors, (125), 16 states have call successors, (16), 16 states have call predecessors, (16), 14 states have return successors, (22), 14 states have call predecessors, (22), 16 states have call successors, (22) [2023-12-15 22:56:42,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 163 transitions. [2023-12-15 22:56:42,227 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 163 transitions. Word has length 23 [2023-12-15 22:56:42,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:56:42,227 INFO L495 AbstractCegarLoop]: Abstraction has 121 states and 163 transitions. [2023-12-15 22:56:42,227 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, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-15 22:56:42,227 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 163 transitions. [2023-12-15 22:56:42,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-12-15 22:56:42,228 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:56:42,228 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:56:42,228 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-15 22:56:42,228 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:56:42,229 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:56:42,229 INFO L85 PathProgramCache]: Analyzing trace with hash -650350214, now seen corresponding path program 1 times [2023-12-15 22:56:42,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:56:42,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32285920] [2023-12-15 22:56:42,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:56:42,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:56:42,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:42,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 22:56:42,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:56:42,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32285920] [2023-12-15 22:56:42,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [32285920] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:56:42,313 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:56:42,313 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-15 22:56:42,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505069496] [2023-12-15 22:56:42,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:56:42,314 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-15 22:56:42,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:56:42,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-15 22:56:42,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-15 22:56:42,316 INFO L87 Difference]: Start difference. First operand 121 states and 163 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 22:56:42,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:56:42,366 INFO L93 Difference]: Finished difference Result 244 states and 335 transitions. [2023-12-15 22:56:42,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-15 22:56:42,367 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2023-12-15 22:56:42,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:56:42,368 INFO L225 Difference]: With dead ends: 244 [2023-12-15 22:56:42,368 INFO L226 Difference]: Without dead ends: 125 [2023-12-15 22:56:42,371 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-15 22:56:42,375 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 1 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 22:56:42,378 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 123 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 22:56:42,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2023-12-15 22:56:42,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2023-12-15 22:56:42,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 94 states have (on average 1.372340425531915) internal successors, (129), 103 states have internal predecessors, (129), 16 states have call successors, (16), 16 states have call predecessors, (16), 14 states have return successors, (22), 14 states have call predecessors, (22), 16 states have call successors, (22) [2023-12-15 22:56:42,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 167 transitions. [2023-12-15 22:56:42,393 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 167 transitions. Word has length 23 [2023-12-15 22:56:42,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:56:42,393 INFO L495 AbstractCegarLoop]: Abstraction has 125 states and 167 transitions. [2023-12-15 22:56:42,393 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 22:56:42,393 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 167 transitions. [2023-12-15 22:56:42,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-12-15 22:56:42,394 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:56:42,394 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:56:42,394 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-15 22:56:42,394 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:56:42,394 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:56:42,395 INFO L85 PathProgramCache]: Analyzing trace with hash -1459696840, now seen corresponding path program 1 times [2023-12-15 22:56:42,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:56:42,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542985539] [2023-12-15 22:56:42,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:56:42,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:56:42,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:42,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 22:56:42,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:56:42,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542985539] [2023-12-15 22:56:42,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [542985539] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:56:42,501 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:56:42,501 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-15 22:56:42,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132935618] [2023-12-15 22:56:42,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:56:42,501 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-15 22:56:42,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:56:42,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-15 22:56:42,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-15 22:56:42,502 INFO L87 Difference]: Start difference. First operand 125 states and 167 transitions. Second operand has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 22:56:42,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:56:42,578 INFO L93 Difference]: Finished difference Result 240 states and 326 transitions. [2023-12-15 22:56:42,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-15 22:56:42,579 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2023-12-15 22:56:42,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:56:42,581 INFO L225 Difference]: With dead ends: 240 [2023-12-15 22:56:42,581 INFO L226 Difference]: Without dead ends: 173 [2023-12-15 22:56:42,582 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-15 22:56:42,583 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 71 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-15 22:56:42,583 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 234 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-15 22:56:42,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2023-12-15 22:56:42,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 159. [2023-12-15 22:56:42,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 120 states have (on average 1.35) internal successors, (162), 131 states have internal predecessors, (162), 20 states have call successors, (20), 20 states have call predecessors, (20), 18 states have return successors, (24), 18 states have call predecessors, (24), 20 states have call successors, (24) [2023-12-15 22:56:42,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 206 transitions. [2023-12-15 22:56:42,614 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 206 transitions. Word has length 23 [2023-12-15 22:56:42,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:56:42,614 INFO L495 AbstractCegarLoop]: Abstraction has 159 states and 206 transitions. [2023-12-15 22:56:42,614 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 22:56:42,614 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 206 transitions. [2023-12-15 22:56:42,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-12-15 22:56:42,618 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:56:42,618 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:56:42,618 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-15 22:56:42,618 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:56:42,619 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:56:42,619 INFO L85 PathProgramCache]: Analyzing trace with hash -970679160, now seen corresponding path program 1 times [2023-12-15 22:56:42,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:56:42,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484568096] [2023-12-15 22:56:42,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:56:42,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:56:42,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:42,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-15 22:56:42,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:42,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-15 22:56:42,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:42,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 22:56:42,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:56:42,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484568096] [2023-12-15 22:56:42,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [484568096] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:56:42,736 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:56:42,736 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 22:56:42,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917164328] [2023-12-15 22:56:42,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:56:42,736 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 22:56:42,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:56:42,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 22:56:42,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 22:56:42,737 INFO L87 Difference]: Start difference. First operand 159 states and 206 transitions. Second operand has 7 states, 7 states have (on average 2.857142857142857) internal successors, (20), 6 states have internal predecessors, (20), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-15 22:56:42,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:56:42,912 INFO L93 Difference]: Finished difference Result 338 states and 451 transitions. [2023-12-15 22:56:42,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-15 22:56:42,913 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.857142857142857) internal successors, (20), 6 states have internal predecessors, (20), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 25 [2023-12-15 22:56:42,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:56:42,916 INFO L225 Difference]: With dead ends: 338 [2023-12-15 22:56:42,916 INFO L226 Difference]: Without dead ends: 271 [2023-12-15 22:56:42,917 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2023-12-15 22:56:42,918 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 121 mSDsluCounter, 203 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 262 SdHoareTripleChecker+Invalid, 240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-15 22:56:42,918 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 262 Invalid, 240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-15 22:56:42,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2023-12-15 22:56:42,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 257. [2023-12-15 22:56:42,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 195 states have (on average 1.3282051282051281) internal successors, (259), 216 states have internal predecessors, (259), 30 states have call successors, (30), 28 states have call predecessors, (30), 31 states have return successors, (44), 28 states have call predecessors, (44), 30 states have call successors, (44) [2023-12-15 22:56:42,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 333 transitions. [2023-12-15 22:56:42,939 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 333 transitions. Word has length 25 [2023-12-15 22:56:42,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:56:42,940 INFO L495 AbstractCegarLoop]: Abstraction has 257 states and 333 transitions. [2023-12-15 22:56:42,941 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.857142857142857) internal successors, (20), 6 states have internal predecessors, (20), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-15 22:56:42,941 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 333 transitions. [2023-12-15 22:56:42,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-12-15 22:56:42,942 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:56:42,942 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:56:42,942 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-15 22:56:42,942 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:56:42,942 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:56:42,942 INFO L85 PathProgramCache]: Analyzing trace with hash -1482623390, now seen corresponding path program 1 times [2023-12-15 22:56:42,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:56:42,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259296388] [2023-12-15 22:56:42,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:56:42,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:56:42,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:43,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-15 22:56:43,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:43,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 22:56:43,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:56:43,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1259296388] [2023-12-15 22:56:43,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1259296388] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:56:43,031 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:56:43,032 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-15 22:56:43,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384409819] [2023-12-15 22:56:43,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:56:43,032 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-15 22:56:43,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:56:43,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-15 22:56:43,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-15 22:56:43,033 INFO L87 Difference]: Start difference. First operand 257 states and 333 transitions. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-15 22:56:43,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:56:43,052 INFO L93 Difference]: Finished difference Result 313 states and 410 transitions. [2023-12-15 22:56:43,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 22:56:43,053 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 26 [2023-12-15 22:56:43,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:56:43,053 INFO L225 Difference]: With dead ends: 313 [2023-12-15 22:56:43,053 INFO L226 Difference]: Without dead ends: 0 [2023-12-15 22:56:43,054 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-15 22:56:43,055 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 23 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 22:56:43,055 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 58 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 22:56:43,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-15 22:56:43,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-15 22:56:43,056 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) [2023-12-15 22:56:43,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-15 22:56:43,056 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 26 [2023-12-15 22:56:43,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:56:43,056 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-15 22:56:43,056 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-15 22:56:43,056 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-15 22:56:43,056 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-15 22:56:43,058 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-15 22:56:43,061 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-15 22:56:43,062 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-15 22:56:43,296 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 164 170) no Hoare annotation was computed. [2023-12-15 22:56:43,297 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 164 170) the Hoare annotation is: true [2023-12-15 22:56:43,297 INFO L899 garLoopResultBuilder]: For program point L402-1(lines 398 409) no Hoare annotation was computed. [2023-12-15 22:56:43,297 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 398 409) the Hoare annotation is: true [2023-12-15 22:56:43,297 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 398 409) no Hoare annotation was computed. [2023-12-15 22:56:43,297 INFO L899 garLoopResultBuilder]: For program point L834-1(line 834) no Hoare annotation was computed. [2023-12-15 22:56:43,297 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 828 857) no Hoare annotation was computed. [2023-12-15 22:56:43,297 INFO L899 garLoopResultBuilder]: For program point L853(lines 828 857) no Hoare annotation was computed. [2023-12-15 22:56:43,297 INFO L899 garLoopResultBuilder]: For program point L849(line 849) no Hoare annotation was computed. [2023-12-15 22:56:43,297 INFO L899 garLoopResultBuilder]: For program point L842(lines 842 846) no Hoare annotation was computed. [2023-12-15 22:56:43,297 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 828 857) the Hoare annotation is: true [2023-12-15 22:56:43,297 INFO L902 garLoopResultBuilder]: At program point L842-1(lines 842 846) the Hoare annotation is: true [2023-12-15 22:56:43,297 INFO L902 garLoopResultBuilder]: At program point L838-2(lines 838 852) the Hoare annotation is: true [2023-12-15 22:56:43,298 INFO L902 garLoopResultBuilder]: At program point L834(line 834) the Hoare annotation is: true [2023-12-15 22:56:43,298 INFO L899 garLoopResultBuilder]: For program point L378(lines 378 382) no Hoare annotation was computed. [2023-12-15 22:56:43,298 INFO L899 garLoopResultBuilder]: For program point L378-2(lines 374 385) no Hoare annotation was computed. [2023-12-15 22:56:43,298 INFO L899 garLoopResultBuilder]: For program point L151-1(lines 151 157) no Hoare annotation was computed. [2023-12-15 22:56:43,298 INFO L899 garLoopResultBuilder]: For program point L180(lines 180 188) no Hoare annotation was computed. [2023-12-15 22:56:43,298 INFO L899 garLoopResultBuilder]: For program point L176(lines 176 193) no Hoare annotation was computed. [2023-12-15 22:56:43,298 INFO L899 garLoopResultBuilder]: For program point L296(lines 296 300) no Hoare annotation was computed. [2023-12-15 22:56:43,299 INFO L899 garLoopResultBuilder]: For program point L296-2(lines 296 300) no Hoare annotation was computed. [2023-12-15 22:56:43,299 INFO L899 garLoopResultBuilder]: For program point L358(lines 358 364) no Hoare annotation was computed. [2023-12-15 22:56:43,299 INFO L899 garLoopResultBuilder]: For program point L354(lines 354 367) no Hoare annotation was computed. [2023-12-15 22:56:43,299 INFO L899 garLoopResultBuilder]: For program point L354-1(lines 346 370) no Hoare annotation was computed. [2023-12-15 22:56:43,299 INFO L899 garLoopResultBuilder]: For program point L144-1(lines 143 162) no Hoare annotation was computed. [2023-12-15 22:56:43,299 INFO L895 garLoopResultBuilder]: At program point L186(line 186) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= 0 ~systemActive~0))) (and (or .cse0 (< |old(~waterLevel~0)| 2) .cse1) (or .cse0 (not (= |old(~waterLevel~0)| 1)) .cse1))) [2023-12-15 22:56:43,299 INFO L899 garLoopResultBuilder]: For program point L54(line 54) no Hoare annotation was computed. [2023-12-15 22:56:43,299 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 140 163) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= 0 ~systemActive~0))) (and (or .cse0 (and .cse1 (= |old(~waterLevel~0)| ~waterLevel~0)) (< |old(~waterLevel~0)| 2) .cse2) (or .cse0 (not (= |old(~waterLevel~0)| 1)) (and .cse1 (= ~waterLevel~0 1)) .cse2))) [2023-12-15 22:56:43,300 INFO L895 garLoopResultBuilder]: At program point L191(line 191) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= 0 ~systemActive~0))) (and (or .cse0 (and .cse1 (= |old(~waterLevel~0)| ~waterLevel~0)) (< |old(~waterLevel~0)| 2) .cse2) (or .cse0 (not (= |old(~waterLevel~0)| 1)) (and .cse1 (= ~waterLevel~0 1)) .cse2))) [2023-12-15 22:56:43,300 INFO L899 garLoopResultBuilder]: For program point L191-1(lines 172 196) no Hoare annotation was computed. [2023-12-15 22:56:43,300 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 140 163) no Hoare annotation was computed. [2023-12-15 22:56:43,300 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 54) no Hoare annotation was computed. [2023-12-15 22:56:43,300 INFO L899 garLoopResultBuilder]: For program point L93(lines 93 99) no Hoare annotation was computed. [2023-12-15 22:56:43,300 INFO L899 garLoopResultBuilder]: For program point L93-1(lines 93 99) no Hoare annotation was computed. [2023-12-15 22:56:43,301 INFO L899 garLoopResultBuilder]: For program point L122(lines 63 126) no Hoare annotation was computed. [2023-12-15 22:56:43,301 INFO L895 garLoopResultBuilder]: At program point L85(line 85) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse2 (not (= 0 ~systemActive~0))) (.cse3 (= |ULTIMATE.start_main_~tmp~8#1| ~systemActive~0))) (or (and .cse0 .cse1 (= ~waterLevel~0 1) .cse2 .cse3) (and .cse0 (<= 2 ~waterLevel~0) .cse1 .cse2 .cse3))) [2023-12-15 22:56:43,301 INFO L895 garLoopResultBuilder]: At program point L119(lines 72 120) the Hoare annotation is: false [2023-12-15 22:56:43,301 INFO L899 garLoopResultBuilder]: For program point L74(lines 73 118) no Hoare annotation was computed. [2023-12-15 22:56:43,301 INFO L899 garLoopResultBuilder]: For program point L103(lines 103 114) no Hoare annotation was computed. [2023-12-15 22:56:43,301 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-12-15 22:56:43,301 INFO L895 garLoopResultBuilder]: At program point L95(line 95) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse2 (not (= 0 ~systemActive~0))) (.cse3 (= |ULTIMATE.start_main_~tmp~8#1| ~systemActive~0))) (or (and .cse0 .cse1 (= ~waterLevel~0 1) .cse2 .cse3) (and .cse0 (<= 2 ~waterLevel~0) .cse1 .cse2 .cse3))) [2023-12-15 22:56:43,301 INFO L895 garLoopResultBuilder]: At program point L116(lines 73 118) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse2 (not (= 0 ~systemActive~0))) (.cse3 (= |ULTIMATE.start_main_~tmp~8#1| ~systemActive~0))) (or (and .cse0 .cse1 (= ~waterLevel~0 1) .cse2 .cse3) (and .cse0 (<= 2 ~waterLevel~0) .cse1 .cse2 .cse3))) [2023-12-15 22:56:43,301 INFO L899 garLoopResultBuilder]: For program point L83(lines 83 89) no Hoare annotation was computed. [2023-12-15 22:56:43,302 INFO L899 garLoopResultBuilder]: For program point L83-1(lines 83 89) no Hoare annotation was computed. [2023-12-15 22:56:43,302 INFO L899 garLoopResultBuilder]: For program point L909(lines 909 916) no Hoare annotation was computed. [2023-12-15 22:56:43,302 INFO L899 garLoopResultBuilder]: For program point L909-2(lines 909 916) no Hoare annotation was computed. [2023-12-15 22:56:43,302 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-12-15 22:56:43,302 INFO L899 garLoopResultBuilder]: For program point L109(lines 109 113) no Hoare annotation was computed. [2023-12-15 22:56:43,302 INFO L895 garLoopResultBuilder]: At program point L109-2(lines 103 114) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse2 (not (= 0 ~systemActive~0))) (.cse3 (= |ULTIMATE.start_main_~tmp~8#1| ~systemActive~0))) (or (and .cse0 .cse1 (= ~waterLevel~0 1) .cse2 .cse3) (and .cse0 (<= 2 ~waterLevel~0) .cse1 .cse2 .cse3))) [2023-12-15 22:56:43,302 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 386 397) no Hoare annotation was computed. [2023-12-15 22:56:43,302 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 386 397) the Hoare annotation is: (let ((.cse0 (not (= ~pumpRunning~0 0))) (.cse1 (= 0 ~systemActive~0))) (and (or .cse0 (< |old(~waterLevel~0)| 2) (= |old(~waterLevel~0)| ~waterLevel~0) .cse1) (or .cse0 (not (= |old(~waterLevel~0)| 1)) .cse1 (= ~waterLevel~0 1)))) [2023-12-15 22:56:43,302 INFO L899 garLoopResultBuilder]: For program point L390-1(lines 386 397) no Hoare annotation was computed. [2023-12-15 22:56:43,304 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:56:43,305 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-15 22:56:43,316 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.12 10:56:43 BoogieIcfgContainer [2023-12-15 22:56:43,316 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-15 22:56:43,316 INFO L158 Benchmark]: Toolchain (without parser) took 2959.48ms. Allocated memory is still 323.0MB. Free memory was 277.4MB in the beginning and 166.3MB in the end (delta: 111.1MB). Peak memory consumption was 111.6MB. Max. memory is 8.0GB. [2023-12-15 22:56:43,316 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 229.6MB. Free memory is still 180.2MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-15 22:56:43,317 INFO L158 Benchmark]: CACSL2BoogieTranslator took 358.81ms. Allocated memory is still 323.0MB. Free memory was 277.1MB in the beginning and 257.7MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. [2023-12-15 22:56:43,317 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.38ms. Allocated memory is still 323.0MB. Free memory was 257.7MB in the beginning and 255.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-15 22:56:43,317 INFO L158 Benchmark]: Boogie Preprocessor took 37.44ms. Allocated memory is still 323.0MB. Free memory was 255.6MB in the beginning and 253.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-15 22:56:43,317 INFO L158 Benchmark]: RCFGBuilder took 417.38ms. Allocated memory is still 323.0MB. Free memory was 253.3MB in the beginning and 234.1MB in the end (delta: 19.1MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. [2023-12-15 22:56:43,317 INFO L158 Benchmark]: TraceAbstraction took 2084.03ms. Allocated memory is still 323.0MB. Free memory was 233.3MB in the beginning and 166.3MB in the end (delta: 67.0MB). Peak memory consumption was 67.6MB. Max. memory is 8.0GB. [2023-12-15 22:56:43,319 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 229.6MB. Free memory is still 180.2MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 358.81ms. Allocated memory is still 323.0MB. Free memory was 277.1MB in the beginning and 257.7MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 57.38ms. Allocated memory is still 323.0MB. Free memory was 257.7MB in the beginning and 255.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 37.44ms. Allocated memory is still 323.0MB. Free memory was 255.6MB in the beginning and 253.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 417.38ms. Allocated memory is still 323.0MB. Free memory was 253.3MB in the beginning and 234.1MB in the end (delta: 19.1MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. * TraceAbstraction took 2084.03ms. Allocated memory is still 323.0MB. Free memory was 233.3MB in the beginning and 166.3MB in the end (delta: 67.0MB). Peak memory consumption was 67.6MB. 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,"scenario.i","") [58] - GenericResultAtLocation [Line: 127]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [127] - GenericResultAtLocation [Line: 306]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [306] - GenericResultAtLocation [Line: 344]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification4_spec.i","") [344] - GenericResultAtLocation [Line: 371]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [371] - GenericResultAtLocation [Line: 460]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [460] - GenericResultAtLocation [Line: 826]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [826] * 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 6 procedures, 52 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.0s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 354 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 346 mSDsluCounter, 1096 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 635 mSDsCounter, 49 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 458 IncrementalHoareTripleChecker+Invalid, 507 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 49 mSolverCounterUnsat, 461 mSDtfsCounter, 458 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 52 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=257occurred in iteration=8, InterpolantAutomatonStates: 38, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 30 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 15 LocationsWithAnnotation, 166 PreInvPairs, 176 NumberOfFragments, 277 HoareAnnotationTreeSize, 166 FormulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 15 FormulaSimplificationsInter, 140 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 182 NumberOfCodeBlocks, 182 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 173 ConstructedInterpolants, 0 QuantifiedInterpolants, 375 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 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: 838]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 72]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 73]: Loop Invariant Derived loop invariant: ((((((pumpRunning == 0) && (splverifierCounter == 0)) && (waterLevel == 1)) && !((0 == systemActive))) && (tmp == systemActive)) || (((((pumpRunning == 0) && (2 <= waterLevel)) && (splverifierCounter == 0)) && !((0 == systemActive))) && (tmp == systemActive))) RESULT: Ultimate proved your program to be correct! [2023-12-15 22:56:43,361 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...