/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_spec1_product44.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-19 23:37:08,757 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-19 23:37:08,819 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-19 23:37:08,822 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-19 23:37:08,822 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-19 23:37:08,849 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-19 23:37:08,849 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-19 23:37:08,849 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-19 23:37:08,850 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-19 23:37:08,853 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-19 23:37:08,853 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-19 23:37:08,853 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-19 23:37:08,854 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-19 23:37:08,855 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-19 23:37:08,855 INFO L153 SettingsManager]: * Use SBE=true [2023-12-19 23:37:08,855 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-19 23:37:08,855 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-19 23:37:08,855 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-19 23:37:08,855 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-19 23:37:08,856 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-19 23:37:08,856 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-19 23:37:08,856 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-19 23:37:08,856 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-19 23:37:08,856 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-19 23:37:08,857 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-19 23:37:08,857 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-19 23:37:08,857 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-19 23:37:08,857 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-19 23:37:08,858 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-19 23:37:08,858 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-19 23:37:08,858 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-19 23:37:08,859 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-19 23:37:08,859 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-19 23:37:08,859 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-19 23:37:08,859 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-19 23:37:08,859 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-19 23:37:08,859 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-19 23:37:08,859 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-19 23:37:08,859 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-19 23:37:08,860 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-19 23:37:08,860 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-19 23:37:08,860 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-19 23:37:08,860 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-19 23:37:08,860 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-19 23:37:09,023 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-19 23:37:09,046 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-19 23:37:09,048 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-19 23:37:09,049 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-19 23:37:09,049 INFO L274 PluginConnector]: CDTParser initialized [2023-12-19 23:37:09,050 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product44.cil.c [2023-12-19 23:37:10,181 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-19 23:37:10,366 INFO L384 CDTParser]: Found 1 translation units. [2023-12-19 23:37:10,366 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec1_product44.cil.c [2023-12-19 23:37:10,376 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d469f32e4/ac4da2c2b7314a1c929324dbce824c9b/FLAGfbbd7ffa9 [2023-12-19 23:37:10,386 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d469f32e4/ac4da2c2b7314a1c929324dbce824c9b [2023-12-19 23:37:10,387 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-19 23:37:10,388 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-19 23:37:10,389 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-19 23:37:10,389 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-19 23:37:10,399 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-19 23:37:10,400 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 11:37:10" (1/1) ... [2023-12-19 23:37:10,400 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2375dcc1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:37:10, skipping insertion in model container [2023-12-19 23:37:10,400 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 11:37:10" (1/1) ... [2023-12-19 23:37:10,428 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-19 23:37:10,523 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec1_product44.cil.c[1605,1618] [2023-12-19 23:37:10,593 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-19 23:37:10,609 INFO L202 MainTranslator]: Completed pre-run [2023-12-19 23:37:10,615 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [49] [2023-12-19 23:37:10,615 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [58] [2023-12-19 23:37:10,616 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [424] [2023-12-19 23:37:10,617 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [499] [2023-12-19 23:37:10,617 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [701] [2023-12-19 23:37:10,617 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification1_spec.i","") [796] [2023-12-19 23:37:10,617 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [822] [2023-12-19 23:37:10,618 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [860] [2023-12-19 23:37:10,628 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_spec1_product44.cil.c[1605,1618] [2023-12-19 23:37:10,690 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-19 23:37:10,710 INFO L206 MainTranslator]: Completed translation [2023-12-19 23:37:10,711 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:37:10 WrapperNode [2023-12-19 23:37:10,711 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-19 23:37:10,712 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-19 23:37:10,712 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-19 23:37:10,712 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-19 23:37:10,717 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:37:10" (1/1) ... [2023-12-19 23:37:10,736 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:37:10" (1/1) ... [2023-12-19 23:37:10,781 INFO L138 Inliner]: procedures = 55, calls = 98, calls flagged for inlining = 24, calls inlined = 21, statements flattened = 191 [2023-12-19 23:37:10,782 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-19 23:37:10,782 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-19 23:37:10,782 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-19 23:37:10,782 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-19 23:37:10,801 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:37:10" (1/1) ... [2023-12-19 23:37:10,801 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:37:10" (1/1) ... [2023-12-19 23:37:10,803 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:37:10" (1/1) ... [2023-12-19 23:37:10,811 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-19 23:37:10,811 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:37:10" (1/1) ... [2023-12-19 23:37:10,811 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:37:10" (1/1) ... [2023-12-19 23:37:10,814 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:37:10" (1/1) ... [2023-12-19 23:37:10,843 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:37:10" (1/1) ... [2023-12-19 23:37:10,844 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:37:10" (1/1) ... [2023-12-19 23:37:10,850 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:37:10" (1/1) ... [2023-12-19 23:37:10,852 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-19 23:37:10,853 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-19 23:37:10,853 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-19 23:37:10,853 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-19 23:37:10,853 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:37:10" (1/1) ... [2023-12-19 23:37:10,878 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-19 23:37:10,887 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 23:37:10,896 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-19 23:37:10,906 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-19 23:37:10,926 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-19 23:37:10,927 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-12-19 23:37:10,927 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-12-19 23:37:10,927 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2023-12-19 23:37:10,927 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2023-12-19 23:37:10,927 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-12-19 23:37:10,927 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-12-19 23:37:10,927 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-12-19 23:37:10,927 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-12-19 23:37:10,927 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-12-19 23:37:10,927 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-12-19 23:37:10,927 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-19 23:37:10,928 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-12-19 23:37:10,928 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-12-19 23:37:10,928 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-19 23:37:10,928 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-19 23:37:11,013 INFO L241 CfgBuilder]: Building ICFG [2023-12-19 23:37:11,014 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-19 23:37:11,183 INFO L282 CfgBuilder]: Performing block encoding [2023-12-19 23:37:11,228 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-19 23:37:11,229 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-12-19 23:37:11,229 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 11:37:11 BoogieIcfgContainer [2023-12-19 23:37:11,229 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-19 23:37:11,230 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-19 23:37:11,230 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-19 23:37:11,252 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-19 23:37:11,252 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.12 11:37:10" (1/3) ... [2023-12-19 23:37:11,256 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@589e79cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 11:37:11, skipping insertion in model container [2023-12-19 23:37:11,256 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:37:10" (2/3) ... [2023-12-19 23:37:11,256 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@589e79cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 11:37:11, skipping insertion in model container [2023-12-19 23:37:11,256 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 11:37:11" (3/3) ... [2023-12-19 23:37:11,257 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product44.cil.c [2023-12-19 23:37:11,268 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-19 23:37:11,268 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-19 23:37:11,318 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-19 23:37:11,322 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;@60250731, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-19 23:37:11,322 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-19 23:37:11,325 INFO L276 IsEmpty]: Start isEmpty. Operand has 64 states, 46 states have (on average 1.5434782608695652) internal successors, (71), 52 states have internal predecessors, (71), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) [2023-12-19 23:37:11,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-12-19 23:37:11,330 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:37:11,330 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 23:37:11,331 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:37:11,334 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:37:11,334 INFO L85 PathProgramCache]: Analyzing trace with hash -1617246423, now seen corresponding path program 1 times [2023-12-19 23:37:11,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:37:11,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799642318] [2023-12-19 23:37:11,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:37:11,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:37:11,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:37:11,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-19 23:37:11,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:37:11,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 23:37:11,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:37:11,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1799642318] [2023-12-19 23:37:11,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1799642318] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:37:11,467 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:37:11,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-19 23:37:11,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445359544] [2023-12-19 23:37:11,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:37:11,472 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-19 23:37:11,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:37:11,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-19 23:37:11,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-19 23:37:11,502 INFO L87 Difference]: Start difference. First operand has 64 states, 46 states have (on average 1.5434782608695652) internal successors, (71), 52 states have internal predecessors, (71), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-19 23:37:11,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:37:11,563 INFO L93 Difference]: Finished difference Result 126 states and 183 transitions. [2023-12-19 23:37:11,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-19 23:37:11,565 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 16 [2023-12-19 23:37:11,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:37:11,571 INFO L225 Difference]: With dead ends: 126 [2023-12-19 23:37:11,571 INFO L226 Difference]: Without dead ends: 59 [2023-12-19 23:37:11,574 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-19 23:37:11,577 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 23:37:11,578 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 71 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 23:37:11,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2023-12-19 23:37:11,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2023-12-19 23:37:11,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 43 states have (on average 1.4186046511627908) internal successors, (61), 48 states have internal predecessors, (61), 10 states have call successors, (10), 6 states have call predecessors, (10), 5 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) [2023-12-19 23:37:11,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 80 transitions. [2023-12-19 23:37:11,614 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 80 transitions. Word has length 16 [2023-12-19 23:37:11,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:37:11,614 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 80 transitions. [2023-12-19 23:37:11,614 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-19 23:37:11,615 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 80 transitions. [2023-12-19 23:37:11,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-12-19 23:37:11,618 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:37:11,618 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 23:37:11,619 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-19 23:37:11,619 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:37:11,620 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:37:11,620 INFO L85 PathProgramCache]: Analyzing trace with hash 1917009150, now seen corresponding path program 1 times [2023-12-19 23:37:11,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:37:11,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659084313] [2023-12-19 23:37:11,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:37:11,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:37:11,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:37:11,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-19 23:37:11,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:37:11,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 23:37:11,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:37:11,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659084313] [2023-12-19 23:37:11,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1659084313] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:37:11,710 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:37:11,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-19 23:37:11,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452817088] [2023-12-19 23:37:11,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:37:11,711 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 23:37:11,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:37:11,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 23:37:11,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 23:37:11,712 INFO L87 Difference]: Start difference. First operand 59 states and 80 transitions. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-19 23:37:11,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:37:11,743 INFO L93 Difference]: Finished difference Result 89 states and 120 transitions. [2023-12-19 23:37:11,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 23:37:11,744 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2023-12-19 23:37:11,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:37:11,744 INFO L225 Difference]: With dead ends: 89 [2023-12-19 23:37:11,744 INFO L226 Difference]: Without dead ends: 51 [2023-12-19 23:37:11,745 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 23:37:11,746 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 14 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 23:37:11,746 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 100 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 23:37:11,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2023-12-19 23:37:11,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2023-12-19 23:37:11,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 38 states have (on average 1.4473684210526316) internal successors, (55), 43 states have internal predecessors, (55), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2023-12-19 23:37:11,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 69 transitions. [2023-12-19 23:37:11,752 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 69 transitions. Word has length 17 [2023-12-19 23:37:11,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:37:11,753 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 69 transitions. [2023-12-19 23:37:11,753 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-19 23:37:11,753 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 69 transitions. [2023-12-19 23:37:11,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-12-19 23:37:11,753 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:37:11,753 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] [2023-12-19 23:37:11,754 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-19 23:37:11,754 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:37:11,754 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:37:11,754 INFO L85 PathProgramCache]: Analyzing trace with hash 1232645247, now seen corresponding path program 1 times [2023-12-19 23:37:11,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:37:11,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630179460] [2023-12-19 23:37:11,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:37:11,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:37:11,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:37:11,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-19 23:37:11,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:37:11,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 23:37:11,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:37:11,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [630179460] [2023-12-19 23:37:11,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [630179460] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:37:11,835 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:37:11,835 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-19 23:37:11,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361243628] [2023-12-19 23:37:11,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:37:11,835 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-19 23:37:11,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:37:11,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-19 23:37:11,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-19 23:37:11,836 INFO L87 Difference]: Start difference. First operand 51 states and 69 transitions. Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-19 23:37:11,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:37:11,899 INFO L93 Difference]: Finished difference Result 134 states and 183 transitions. [2023-12-19 23:37:11,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-19 23:37:11,900 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 20 [2023-12-19 23:37:11,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:37:11,901 INFO L225 Difference]: With dead ends: 134 [2023-12-19 23:37:11,901 INFO L226 Difference]: Without dead ends: 85 [2023-12-19 23:37:11,902 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-19 23:37:11,902 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 93 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 23:37:11,903 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 148 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 23:37:11,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2023-12-19 23:37:11,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 81. [2023-12-19 23:37:11,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 60 states have (on average 1.45) internal successors, (87), 67 states have internal predecessors, (87), 11 states have call successors, (11), 9 states have call predecessors, (11), 9 states have return successors, (12), 10 states have call predecessors, (12), 11 states have call successors, (12) [2023-12-19 23:37:11,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 110 transitions. [2023-12-19 23:37:11,912 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 110 transitions. Word has length 20 [2023-12-19 23:37:11,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:37:11,912 INFO L495 AbstractCegarLoop]: Abstraction has 81 states and 110 transitions. [2023-12-19 23:37:11,912 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-19 23:37:11,912 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 110 transitions. [2023-12-19 23:37:11,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-12-19 23:37:11,913 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:37:11,913 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] [2023-12-19 23:37:11,913 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-19 23:37:11,913 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:37:11,914 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:37:11,914 INFO L85 PathProgramCache]: Analyzing trace with hash 1212384729, now seen corresponding path program 1 times [2023-12-19 23:37:11,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:37:11,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778617811] [2023-12-19 23:37:11,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:37:11,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:37:11,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:37:11,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-19 23:37:11,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:37:11,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 23:37:11,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:37:11,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778617811] [2023-12-19 23:37:11,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1778617811] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:37:11,947 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:37:11,947 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-19 23:37:11,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348342308] [2023-12-19 23:37:11,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:37:11,948 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 23:37:11,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:37:11,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 23:37:11,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 23:37:11,948 INFO L87 Difference]: Start difference. First operand 81 states and 110 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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) [2023-12-19 23:37:11,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:37:11,994 INFO L93 Difference]: Finished difference Result 194 states and 267 transitions. [2023-12-19 23:37:11,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 23:37:11,995 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), 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 23 [2023-12-19 23:37:11,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:37:11,998 INFO L225 Difference]: With dead ends: 194 [2023-12-19 23:37:11,998 INFO L226 Difference]: Without dead ends: 115 [2023-12-19 23:37:12,001 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 23:37:12,002 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 51 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 23:37:12,002 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 93 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 23:37:12,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2023-12-19 23:37:12,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 113. [2023-12-19 23:37:12,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 83 states have (on average 1.3975903614457832) internal successors, (116), 92 states have internal predecessors, (116), 15 states have call successors, (15), 14 states have call predecessors, (15), 14 states have return successors, (19), 15 states have call predecessors, (19), 15 states have call successors, (19) [2023-12-19 23:37:12,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 150 transitions. [2023-12-19 23:37:12,016 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 150 transitions. Word has length 23 [2023-12-19 23:37:12,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:37:12,016 INFO L495 AbstractCegarLoop]: Abstraction has 113 states and 150 transitions. [2023-12-19 23:37:12,016 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), 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) [2023-12-19 23:37:12,017 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 150 transitions. [2023-12-19 23:37:12,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-12-19 23:37:12,017 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:37:12,017 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] [2023-12-19 23:37:12,017 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-19 23:37:12,018 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:37:12,018 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:37:12,018 INFO L85 PathProgramCache]: Analyzing trace with hash -604450282, now seen corresponding path program 1 times [2023-12-19 23:37:12,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:37:12,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393339615] [2023-12-19 23:37:12,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:37:12,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:37:12,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:37:12,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-19 23:37:12,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:37:12,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 23:37:12,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:37:12,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393339615] [2023-12-19 23:37:12,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [393339615] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:37:12,083 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:37:12,083 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-19 23:37:12,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15322878] [2023-12-19 23:37:12,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:37:12,084 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-19 23:37:12,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:37:12,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-19 23:37:12,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-19 23:37:12,084 INFO L87 Difference]: Start difference. First operand 113 states and 150 transitions. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 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) [2023-12-19 23:37:12,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:37:12,130 INFO L93 Difference]: Finished difference Result 118 states and 154 transitions. [2023-12-19 23:37:12,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-19 23:37:12,131 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 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 [2023-12-19 23:37:12,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:37:12,132 INFO L225 Difference]: With dead ends: 118 [2023-12-19 23:37:12,132 INFO L226 Difference]: Without dead ends: 116 [2023-12-19 23:37:12,132 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 [2023-12-19 23:37:12,135 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 54 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 23:37:12,135 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 143 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 23:37:12,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2023-12-19 23:37:12,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 113. [2023-12-19 23:37:12,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 83 states have (on average 1.3734939759036144) internal successors, (114), 92 states have internal predecessors, (114), 15 states have call successors, (15), 14 states have call predecessors, (15), 14 states have return successors, (19), 15 states have call predecessors, (19), 15 states have call successors, (19) [2023-12-19 23:37:12,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 148 transitions. [2023-12-19 23:37:12,161 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 148 transitions. Word has length 23 [2023-12-19 23:37:12,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:37:12,162 INFO L495 AbstractCegarLoop]: Abstraction has 113 states and 148 transitions. [2023-12-19 23:37:12,162 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 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) [2023-12-19 23:37:12,162 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 148 transitions. [2023-12-19 23:37:12,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-12-19 23:37:12,163 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:37:12,163 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 23:37:12,163 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-19 23:37:12,163 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:37:12,163 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:37:12,164 INFO L85 PathProgramCache]: Analyzing trace with hash 1549134532, now seen corresponding path program 1 times [2023-12-19 23:37:12,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:37:12,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123295685] [2023-12-19 23:37:12,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:37:12,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:37:12,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:37:12,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-19 23:37:12,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:37:12,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 23:37:12,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:37:12,243 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-19 23:37:12,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:37:12,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123295685] [2023-12-19 23:37:12,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [123295685] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:37:12,244 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:37:12,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-19 23:37:12,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086437518] [2023-12-19 23:37:12,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:37:12,244 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-19 23:37:12,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:37:12,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-19 23:37:12,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-19 23:37:12,245 INFO L87 Difference]: Start difference. First operand 113 states and 148 transitions. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-19 23:37:12,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:37:12,280 INFO L93 Difference]: Finished difference Result 227 states and 304 transitions. [2023-12-19 23:37:12,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-19 23:37:12,280 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 33 [2023-12-19 23:37:12,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:37:12,282 INFO L225 Difference]: With dead ends: 227 [2023-12-19 23:37:12,282 INFO L226 Difference]: Without dead ends: 116 [2023-12-19 23:37:12,283 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-19 23:37:12,287 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 1 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 23:37:12,290 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 161 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 23:37:12,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2023-12-19 23:37:12,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 115. [2023-12-19 23:37:12,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 85 states have (on average 1.3647058823529412) internal successors, (116), 94 states have internal predecessors, (116), 15 states have call successors, (15), 14 states have call predecessors, (15), 14 states have return successors, (19), 15 states have call predecessors, (19), 15 states have call successors, (19) [2023-12-19 23:37:12,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 150 transitions. [2023-12-19 23:37:12,303 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 150 transitions. Word has length 33 [2023-12-19 23:37:12,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:37:12,303 INFO L495 AbstractCegarLoop]: Abstraction has 115 states and 150 transitions. [2023-12-19 23:37:12,303 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-19 23:37:12,303 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 150 transitions. [2023-12-19 23:37:12,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-12-19 23:37:12,311 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:37:12,311 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 23:37:12,311 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-19 23:37:12,312 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:37:12,312 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:37:12,312 INFO L85 PathProgramCache]: Analyzing trace with hash -1427138869, now seen corresponding path program 1 times [2023-12-19 23:37:12,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:37:12,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624865921] [2023-12-19 23:37:12,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:37:12,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:37:12,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:37:12,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-19 23:37:12,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:37:12,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-19 23:37:12,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:37:12,365 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-19 23:37:12,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:37:12,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624865921] [2023-12-19 23:37:12,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1624865921] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:37:12,365 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:37:12,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-19 23:37:12,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217892357] [2023-12-19 23:37:12,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:37:12,366 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 23:37:12,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:37:12,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 23:37:12,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 23:37:12,368 INFO L87 Difference]: Start difference. First operand 115 states and 150 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-19 23:37:12,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:37:12,392 INFO L93 Difference]: Finished difference Result 230 states and 300 transitions. [2023-12-19 23:37:12,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 23:37:12,392 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 36 [2023-12-19 23:37:12,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:37:12,394 INFO L225 Difference]: With dead ends: 230 [2023-12-19 23:37:12,394 INFO L226 Difference]: Without dead ends: 117 [2023-12-19 23:37:12,394 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 23:37:12,395 INFO L413 NwaCegarLoop]: 79 mSDtfsCounter, 33 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 23:37:12,395 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 134 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 23:37:12,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2023-12-19 23:37:12,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 115. [2023-12-19 23:37:12,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 85 states have (on average 1.3529411764705883) internal successors, (115), 94 states have internal predecessors, (115), 15 states have call successors, (15), 14 states have call predecessors, (15), 14 states have return successors, (17), 15 states have call predecessors, (17), 15 states have call successors, (17) [2023-12-19 23:37:12,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 147 transitions. [2023-12-19 23:37:12,407 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 147 transitions. Word has length 36 [2023-12-19 23:37:12,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:37:12,407 INFO L495 AbstractCegarLoop]: Abstraction has 115 states and 147 transitions. [2023-12-19 23:37:12,408 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-19 23:37:12,408 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 147 transitions. [2023-12-19 23:37:12,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-12-19 23:37:12,409 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:37:12,409 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 23:37:12,410 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-19 23:37:12,410 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:37:12,410 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:37:12,410 INFO L85 PathProgramCache]: Analyzing trace with hash -445010174, now seen corresponding path program 1 times [2023-12-19 23:37:12,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:37:12,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378106603] [2023-12-19 23:37:12,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:37:12,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:37:12,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:37:12,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-19 23:37:12,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:37:12,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 23:37:12,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:37:12,474 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-19 23:37:12,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:37:12,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [378106603] [2023-12-19 23:37:12,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [378106603] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:37:12,474 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:37:12,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-19 23:37:12,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926929233] [2023-12-19 23:37:12,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:37:12,474 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-19 23:37:12,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:37:12,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-19 23:37:12,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-19 23:37:12,476 INFO L87 Difference]: Start difference. First operand 115 states and 147 transitions. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-19 23:37:12,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:37:12,513 INFO L93 Difference]: Finished difference Result 241 states and 314 transitions. [2023-12-19 23:37:12,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-19 23:37:12,514 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 33 [2023-12-19 23:37:12,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:37:12,516 INFO L225 Difference]: With dead ends: 241 [2023-12-19 23:37:12,516 INFO L226 Difference]: Without dead ends: 128 [2023-12-19 23:37:12,517 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-19 23:37:12,518 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 12 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 23:37:12,519 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 181 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 23:37:12,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2023-12-19 23:37:12,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 117. [2023-12-19 23:37:12,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 87 states have (on average 1.3448275862068966) internal successors, (117), 96 states have internal predecessors, (117), 15 states have call successors, (15), 14 states have call predecessors, (15), 14 states have return successors, (17), 15 states have call predecessors, (17), 15 states have call successors, (17) [2023-12-19 23:37:12,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 149 transitions. [2023-12-19 23:37:12,532 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 149 transitions. Word has length 33 [2023-12-19 23:37:12,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:37:12,532 INFO L495 AbstractCegarLoop]: Abstraction has 117 states and 149 transitions. [2023-12-19 23:37:12,532 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-19 23:37:12,532 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 149 transitions. [2023-12-19 23:37:12,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-12-19 23:37:12,533 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:37:12,533 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 23:37:12,533 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-19 23:37:12,533 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:37:12,533 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:37:12,534 INFO L85 PathProgramCache]: Analyzing trace with hash -1262658624, now seen corresponding path program 1 times [2023-12-19 23:37:12,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:37:12,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347537044] [2023-12-19 23:37:12,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:37:12,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:37:12,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:37:12,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-19 23:37:12,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:37:12,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 23:37:12,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:37:12,580 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-19 23:37:12,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:37:12,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347537044] [2023-12-19 23:37:12,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1347537044] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:37:12,581 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:37:12,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-19 23:37:12,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986060138] [2023-12-19 23:37:12,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:37:12,582 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 23:37:12,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:37:12,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 23:37:12,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 23:37:12,582 INFO L87 Difference]: Start difference. First operand 117 states and 149 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-19 23:37:12,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:37:12,613 INFO L93 Difference]: Finished difference Result 296 states and 381 transitions. [2023-12-19 23:37:12,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 23:37:12,613 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 33 [2023-12-19 23:37:12,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:37:12,614 INFO L225 Difference]: With dead ends: 296 [2023-12-19 23:37:12,614 INFO L226 Difference]: Without dead ends: 181 [2023-12-19 23:37:12,615 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 23:37:12,616 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 33 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 23:37:12,617 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 106 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 23:37:12,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2023-12-19 23:37:12,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 181. [2023-12-19 23:37:12,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 135 states have (on average 1.3111111111111111) internal successors, (177), 146 states have internal predecessors, (177), 24 states have call successors, (24), 23 states have call predecessors, (24), 21 states have return successors, (26), 22 states have call predecessors, (26), 24 states have call successors, (26) [2023-12-19 23:37:12,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 227 transitions. [2023-12-19 23:37:12,629 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 227 transitions. Word has length 33 [2023-12-19 23:37:12,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:37:12,629 INFO L495 AbstractCegarLoop]: Abstraction has 181 states and 227 transitions. [2023-12-19 23:37:12,629 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-19 23:37:12,629 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 227 transitions. [2023-12-19 23:37:12,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2023-12-19 23:37:12,630 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:37:12,630 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 23:37:12,630 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-19 23:37:12,630 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:37:12,630 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:37:12,631 INFO L85 PathProgramCache]: Analyzing trace with hash 143642138, now seen corresponding path program 1 times [2023-12-19 23:37:12,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:37:12,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657065006] [2023-12-19 23:37:12,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:37:12,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:37:12,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:37:12,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-19 23:37:12,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:37:12,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-12-19 23:37:12,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:37:12,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-19 23:37:12,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:37:12,725 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-19 23:37:12,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:37:12,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657065006] [2023-12-19 23:37:12,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [657065006] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:37:12,725 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:37:12,726 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-19 23:37:12,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984135748] [2023-12-19 23:37:12,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:37:12,727 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-19 23:37:12,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:37:12,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-19 23:37:12,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-19 23:37:12,727 INFO L87 Difference]: Start difference. First operand 181 states and 227 transitions. Second operand has 7 states, 6 states have (on average 5.0) internal successors, (30), 5 states have internal predecessors, (30), 1 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-12-19 23:37:12,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:37:12,916 INFO L93 Difference]: Finished difference Result 621 states and 800 transitions. [2023-12-19 23:37:12,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-19 23:37:12,916 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.0) internal successors, (30), 5 states have internal predecessors, (30), 1 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 37 [2023-12-19 23:37:12,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:37:12,918 INFO L225 Difference]: With dead ends: 621 [2023-12-19 23:37:12,918 INFO L226 Difference]: Without dead ends: 442 [2023-12-19 23:37:12,919 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=157, Unknown=0, NotChecked=0, Total=210 [2023-12-19 23:37:12,919 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 110 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 23:37:12,919 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 245 Invalid, 217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 23:37:12,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 442 states. [2023-12-19 23:37:12,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 442 to 429. [2023-12-19 23:37:12,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 429 states, 320 states have (on average 1.26875) internal successors, (406), 353 states have internal predecessors, (406), 58 states have call successors, (58), 46 states have call predecessors, (58), 50 states have return successors, (75), 54 states have call predecessors, (75), 58 states have call successors, (75) [2023-12-19 23:37:12,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 539 transitions. [2023-12-19 23:37:12,940 INFO L78 Accepts]: Start accepts. Automaton has 429 states and 539 transitions. Word has length 37 [2023-12-19 23:37:12,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:37:12,940 INFO L495 AbstractCegarLoop]: Abstraction has 429 states and 539 transitions. [2023-12-19 23:37:12,940 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 5.0) internal successors, (30), 5 states have internal predecessors, (30), 1 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-12-19 23:37:12,940 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 539 transitions. [2023-12-19 23:37:12,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-12-19 23:37:12,941 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:37:12,941 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 23:37:12,941 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-19 23:37:12,941 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:37:12,942 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:37:12,942 INFO L85 PathProgramCache]: Analyzing trace with hash -770207914, now seen corresponding path program 1 times [2023-12-19 23:37:12,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:37:12,942 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94181734] [2023-12-19 23:37:12,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:37:12,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:37:12,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:37:13,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-19 23:37:13,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:37:13,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-12-19 23:37:13,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:37:13,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 23:37:13,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:37:13,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-19 23:37:13,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:37:13,026 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-19 23:37:13,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:37:13,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94181734] [2023-12-19 23:37:13,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [94181734] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 23:37:13,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1209696232] [2023-12-19 23:37:13,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:37:13,026 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 23:37:13,027 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 23:37:13,029 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 23:37:13,050 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-19 23:37:13,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:37:13,109 INFO L262 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-19 23:37:13,112 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 23:37:13,194 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 23:37:13,195 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 23:37:13,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1209696232] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:37:13,195 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 23:37:13,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 12 [2023-12-19 23:37:13,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207345933] [2023-12-19 23:37:13,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:37:13,195 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-19 23:37:13,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:37:13,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-19 23:37:13,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2023-12-19 23:37:13,196 INFO L87 Difference]: Start difference. First operand 429 states and 539 transitions. Second operand has 6 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 3 states have call successors, (5), 3 states have call predecessors, (5), 4 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2023-12-19 23:37:13,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:37:13,301 INFO L93 Difference]: Finished difference Result 854 states and 1076 transitions. [2023-12-19 23:37:13,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-19 23:37:13,302 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 3 states have call successors, (5), 3 states have call predecessors, (5), 4 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) Word has length 41 [2023-12-19 23:37:13,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:37:13,303 INFO L225 Difference]: With dead ends: 854 [2023-12-19 23:37:13,303 INFO L226 Difference]: Without dead ends: 427 [2023-12-19 23:37:13,304 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2023-12-19 23:37:13,304 INFO L413 NwaCegarLoop]: 106 mSDtfsCounter, 48 mSDsluCounter, 347 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 453 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 23:37:13,305 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 453 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 23:37:13,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2023-12-19 23:37:13,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 418. [2023-12-19 23:37:13,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 418 states, 312 states have (on average 1.2467948717948718) internal successors, (389), 342 states have internal predecessors, (389), 56 states have call successors, (56), 46 states have call predecessors, (56), 49 states have return successors, (66), 52 states have call predecessors, (66), 56 states have call successors, (66) [2023-12-19 23:37:13,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 511 transitions. [2023-12-19 23:37:13,346 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 511 transitions. Word has length 41 [2023-12-19 23:37:13,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:37:13,347 INFO L495 AbstractCegarLoop]: Abstraction has 418 states and 511 transitions. [2023-12-19 23:37:13,347 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 3 states have call successors, (5), 3 states have call predecessors, (5), 4 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2023-12-19 23:37:13,347 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 511 transitions. [2023-12-19 23:37:13,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-12-19 23:37:13,348 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:37:13,348 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 23:37:13,367 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-19 23:37:13,553 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-12-19 23:37:13,554 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:37:13,554 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:37:13,554 INFO L85 PathProgramCache]: Analyzing trace with hash 1093213944, now seen corresponding path program 1 times [2023-12-19 23:37:13,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:37:13,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496137684] [2023-12-19 23:37:13,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:37:13,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:37:13,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-19 23:37:13,566 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-19 23:37:13,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-19 23:37:13,588 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-12-19 23:37:13,588 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-12-19 23:37:13,589 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-19 23:37:13,590 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-19 23:37:13,591 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 23:37:13,594 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-19 23:37:13,639 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.12 11:37:13 BoogieIcfgContainer [2023-12-19 23:37:13,639 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-19 23:37:13,639 INFO L158 Benchmark]: Toolchain (without parser) took 3250.95ms. Allocated memory was 289.4MB in the beginning and 348.1MB in the end (delta: 58.7MB). Free memory was 234.3MB in the beginning and 291.5MB in the end (delta: -57.2MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-19 23:37:13,639 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 202.4MB. Free memory is still 149.7MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-19 23:37:13,640 INFO L158 Benchmark]: CACSL2BoogieTranslator took 322.21ms. Allocated memory is still 289.4MB. Free memory was 233.8MB in the beginning and 214.3MB in the end (delta: 19.6MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. [2023-12-19 23:37:13,640 INFO L158 Benchmark]: Boogie Procedure Inliner took 69.45ms. Allocated memory is still 289.4MB. Free memory was 214.3MB in the beginning and 212.3MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-19 23:37:13,640 INFO L158 Benchmark]: Boogie Preprocessor took 69.94ms. Allocated memory is still 289.4MB. Free memory was 212.3MB in the beginning and 209.7MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-19 23:37:13,640 INFO L158 Benchmark]: RCFGBuilder took 376.46ms. Allocated memory is still 289.4MB. Free memory was 209.7MB in the beginning and 189.3MB in the end (delta: 20.5MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. [2023-12-19 23:37:13,640 INFO L158 Benchmark]: TraceAbstraction took 2408.43ms. Allocated memory was 289.4MB in the beginning and 348.1MB in the end (delta: 58.7MB). Free memory was 188.7MB in the beginning and 291.5MB in the end (delta: -102.8MB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-19 23:37:13,641 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 202.4MB. Free memory is still 149.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 322.21ms. Allocated memory is still 289.4MB. Free memory was 233.8MB in the beginning and 214.3MB in the end (delta: 19.6MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 69.45ms. Allocated memory is still 289.4MB. Free memory was 214.3MB in the beginning and 212.3MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 69.94ms. Allocated memory is still 289.4MB. Free memory was 212.3MB in the beginning and 209.7MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 376.46ms. Allocated memory is still 289.4MB. Free memory was 209.7MB in the beginning and 189.3MB in the end (delta: 20.5MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. * TraceAbstraction took 2408.43ms. Allocated memory was 289.4MB in the beginning and 348.1MB in the end (delta: 58.7MB). Free memory was 188.7MB in the beginning and 291.5MB in the end (delta: -102.8MB). There was no memory consumed. 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,"libacc.i","") [58] - GenericResultAtLocation [Line: 424]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [424] - GenericResultAtLocation [Line: 499]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [499] - GenericResultAtLocation [Line: 701]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [701] - GenericResultAtLocation [Line: 796]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification1_spec.i","") [796] - GenericResultAtLocation [Line: 822]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [822] - GenericResultAtLocation [Line: 860]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [860] * 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 - CounterExampleResult [Line: 54]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L228] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L508] int pumpRunning = 0; [L509] int systemActive = 1; [L703] int waterLevel = 1; [L704] int methaneLevelCritical = 0; [L861] int cleanupTimeShifts = 4; [L934] int retValue_acc ; [L935] int tmp ; [L939] FCALL select_helpers() [L940] FCALL select_features() [L941] CALL, EXPR valid_product() [L852] int retValue_acc ; [L855] retValue_acc = 1 [L856] return (retValue_acc); [L941] RET, EXPR valid_product() [L941] tmp = valid_product() [L943] COND TRUE \read(tmp) [L945] FCALL setup() [L946] CALL runTest() [L928] CALL test() [L432] int splverifierCounter ; [L433] int tmp ; [L434] int tmp___0 ; [L435] int tmp___1 ; [L436] int tmp___2 ; [L439] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L441] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L443] COND TRUE splverifierCounter < 4 [L449] tmp = __VERIFIER_nondet_int() [L451] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L453] CALL waterRise() VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L721] COND TRUE waterLevel < 2 [L722] waterLevel = waterLevel + 1 VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L453] RET waterRise() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L459] tmp___0 = __VERIFIER_nondet_int() [L461] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2] [L469] tmp___2 = __VERIFIER_nondet_int() [L471] COND TRUE \read(tmp___2) [L473] CALL startSystem() [L697] systemActive = 1 [L473] RET startSystem() [L488] CALL timeShift() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L516] COND FALSE !(\read(pumpRunning)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L523] COND TRUE \read(systemActive) [L525] CALL processEnvironment() [L545] int tmp ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L548] COND TRUE ! pumpRunning [L550] CALL, EXPR isHighWaterLevel() [L660] int retValue_acc ; [L661] int tmp ; [L662] int tmp___0 ; [L666] CALL, EXPR isHighWaterSensorDry() [L783] int retValue_acc ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L786] COND FALSE !(waterLevel < 2) [L790] retValue_acc = 0 [L791] return (retValue_acc); VAL [\old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L666] RET, EXPR isHighWaterSensorDry() [L666] tmp = isHighWaterSensorDry() [L668] COND FALSE !(\read(tmp)) [L671] tmp___0 = 1 VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L673] retValue_acc = tmp___0 [L674] return (retValue_acc); [L550] RET, EXPR isHighWaterLevel() [L550] tmp = isHighWaterLevel() [L552] COND TRUE \read(tmp) [L554] CALL activatePump() [L579] int tmp ; [L583] CALL, EXPR isMethaneAlarm() [L604] int retValue_acc ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L608] CALL, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L742] int retValue_acc ; [L745] retValue_acc = methaneLevelCritical [L746] return (retValue_acc); [L608] RET, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L608] retValue_acc = isMethaneLevelCritical() [L610] return (retValue_acc); [L583] RET, EXPR isMethaneAlarm() [L583] tmp = isMethaneAlarm() [L585] COND FALSE !(\read(tmp)) [L589] CALL activatePump__wrappee__highWaterSensor() [L573] pumpRunning = 1 [L589] RET activatePump__wrappee__highWaterSensor() [L554] RET activatePump() [L525] RET processEnvironment() [L531] CALL __utac_acc__Specification1_spec__1() [L798] int tmp ; [L799] int tmp___0 ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L803] CALL, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L742] int retValue_acc ; [L745] retValue_acc = methaneLevelCritical [L746] return (retValue_acc); [L803] RET, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L803] tmp = isMethaneLevelCritical() [L805] COND FALSE !(\read(tmp)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=2] [L531] RET __utac_acc__Specification1_spec__1() [L488] RET timeShift() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=1, waterLevel=2] [L441] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=1, waterLevel=2] [L443] COND TRUE splverifierCounter < 4 [L449] tmp = __VERIFIER_nondet_int() [L451] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=2] [L459] tmp___0 = __VERIFIER_nondet_int() [L461] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=1, tmp___2=1, waterLevel=2] [L463] CALL changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L733] COND FALSE !(\read(methaneLevelCritical)) [L736] methaneLevelCritical = 1 VAL [\old(methaneLevelCritical)=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L463] RET changeMethaneLevel() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=1, tmp___2=1, waterLevel=2] [L469] tmp___2 = __VERIFIER_nondet_int() [L471] COND TRUE \read(tmp___2) [L473] CALL startSystem() [L697] systemActive = 1 [L473] RET startSystem() [L488] CALL timeShift() VAL [\old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L516] COND TRUE \read(pumpRunning) [L518] CALL lowerWaterLevel() [L709] COND TRUE waterLevel > 0 [L710] waterLevel = waterLevel - 1 VAL [\old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L518] RET lowerWaterLevel() [L523] COND TRUE \read(systemActive) [L525] CALL processEnvironment() [L545] int tmp ; VAL [\old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L548] COND FALSE !(! pumpRunning) VAL [\old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L563] FCALL processEnvironment__wrappee__base() VAL [\old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L525] RET processEnvironment() [L531] CALL __utac_acc__Specification1_spec__1() [L798] int tmp ; [L799] int tmp___0 ; VAL [\old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L803] CALL, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L742] int retValue_acc ; [L745] retValue_acc = methaneLevelCritical [L746] return (retValue_acc); [L803] RET, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L803] tmp = isMethaneLevelCritical() [L805] COND TRUE \read(tmp) [L807] CALL, EXPR isPumpRunning() [L615] int retValue_acc ; [L618] retValue_acc = pumpRunning [L619] return (retValue_acc); [L807] RET, EXPR isPumpRunning() [L807] tmp___0 = isPumpRunning() [L809] COND TRUE \read(tmp___0) [L811] CALL __automaton_fail() [L54] reach_error() VAL [\old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 64 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.3s, OverallIterations: 12, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 468 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 449 mSDsluCounter, 1835 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1131 mSDsCounter, 54 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 590 IncrementalHoareTripleChecker+Invalid, 644 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 54 mSolverCounterUnsat, 704 mSDtfsCounter, 590 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 133 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=429occurred in iteration=10, InterpolantAutomatonStates: 51, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 11 MinimizatonAttempts, 45 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 419 NumberOfCodeBlocks, 419 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 341 ConstructedInterpolants, 0 QuantifiedInterpolants, 565 SizeOfPredicates, 3 NumberOfNonLiveVariables, 206 ConjunctsInSsa, 7 ConjunctsInUnsatCore, 12 InterpolantComputations, 11 PerfectInterpolantSequences, 13/14 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 RESULT: Ultimate proved your program to be incorrect! [2023-12-19 23:37:13,658 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...