/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 false -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product51.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-21 10:12:52,004 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-21 10:12:52,053 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-21 10:12:52,058 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-21 10:12:52,058 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-21 10:12:52,073 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-21 10:12:52,074 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-21 10:12:52,074 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-21 10:12:52,074 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-21 10:12:52,075 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-21 10:12:52,075 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-21 10:12:52,075 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-21 10:12:52,075 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-21 10:12:52,076 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-21 10:12:52,076 INFO L153 SettingsManager]: * Use SBE=true [2023-12-21 10:12:52,076 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-21 10:12:52,076 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-21 10:12:52,076 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-21 10:12:52,077 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-21 10:12:52,077 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-21 10:12:52,077 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-21 10:12:52,079 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-21 10:12:52,079 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-21 10:12:52,079 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-21 10:12:52,079 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-21 10:12:52,079 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-21 10:12:52,080 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-21 10:12:52,080 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-21 10:12:52,080 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-21 10:12:52,080 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-21 10:12:52,081 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-21 10:12:52,081 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-21 10:12:52,081 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-21 10:12:52,081 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-21 10:12:52,081 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-21 10:12:52,082 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-21 10:12:52,082 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-21 10:12:52,082 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-21 10:12:52,082 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-21 10:12:52,082 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-21 10:12:52,082 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-21 10:12:52,082 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-21 10:12:52,082 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-21 10:12:52,082 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-21 10:12:52,265 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-21 10:12:52,282 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-21 10:12:52,283 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-21 10:12:52,284 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-21 10:12:52,284 INFO L274 PluginConnector]: CDTParser initialized [2023-12-21 10:12:52,285 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product51.cil.c [2023-12-21 10:12:53,330 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-21 10:12:53,515 INFO L384 CDTParser]: Found 1 translation units. [2023-12-21 10:12:53,515 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product51.cil.c [2023-12-21 10:12:53,524 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/548ee0c12/fea10c820ebf48f0939b3614c558bbc3/FLAG81fd7d00a [2023-12-21 10:12:53,534 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/548ee0c12/fea10c820ebf48f0939b3614c558bbc3 [2023-12-21 10:12:53,536 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-21 10:12:53,537 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-21 10:12:53,538 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-21 10:12:53,538 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-21 10:12:53,551 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-21 10:12:53,552 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 10:12:53" (1/1) ... [2023-12-21 10:12:53,552 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7135a8b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:12:53, skipping insertion in model container [2023-12-21 10:12:53,552 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 10:12:53" (1/1) ... [2023-12-21 10:12:53,598 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-21 10:12:53,786 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product51.cil.c[8940,8953] [2023-12-21 10:12:53,834 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-21 10:12:53,846 INFO L202 MainTranslator]: Completed pre-run [2023-12-21 10:12:53,852 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [49] [2023-12-21 10:12:53,854 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification4_spec.i","") [153] [2023-12-21 10:12:53,854 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [182] [2023-12-21 10:12:53,854 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [290] [2023-12-21 10:12:53,854 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [325] [2023-12-21 10:12:53,854 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [540] [2023-12-21 10:12:53,854 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [607] [2023-12-21 10:12:53,855 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [616] [2023-12-21 10:12:53,883 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product51.cil.c[8940,8953] [2023-12-21 10:12:53,902 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-21 10:12:53,920 INFO L206 MainTranslator]: Completed translation [2023-12-21 10:12:53,921 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:12:53 WrapperNode [2023-12-21 10:12:53,921 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-21 10:12:53,922 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-21 10:12:53,922 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-21 10:12:53,922 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-21 10:12:53,927 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:12:53" (1/1) ... [2023-12-21 10:12:53,949 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:12:53" (1/1) ... [2023-12-21 10:12:53,966 INFO L138 Inliner]: procedures = 56, calls = 100, calls flagged for inlining = 24, calls inlined = 20, statements flattened = 207 [2023-12-21 10:12:53,966 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-21 10:12:53,967 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-21 10:12:53,967 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-21 10:12:53,967 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-21 10:12:53,975 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:12:53" (1/1) ... [2023-12-21 10:12:53,975 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:12:53" (1/1) ... [2023-12-21 10:12:53,976 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:12:53" (1/1) ... [2023-12-21 10:12:53,990 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]. [2023-12-21 10:12:53,990 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:12:53" (1/1) ... [2023-12-21 10:12:53,990 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:12:53" (1/1) ... [2023-12-21 10:12:53,993 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:12:53" (1/1) ... [2023-12-21 10:12:53,999 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:12:53" (1/1) ... [2023-12-21 10:12:54,000 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:12:53" (1/1) ... [2023-12-21 10:12:54,001 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:12:53" (1/1) ... [2023-12-21 10:12:54,002 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-21 10:12:54,003 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-21 10:12:54,003 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-21 10:12:54,003 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-21 10:12:54,004 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:12:53" (1/1) ... [2023-12-21 10:12:54,012 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-21 10:12:54,020 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 10:12:54,031 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) [2023-12-21 10:12:54,039 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 [2023-12-21 10:12:54,052 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-21 10:12:54,052 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-12-21 10:12:54,052 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-12-21 10:12:54,052 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-12-21 10:12:54,052 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-12-21 10:12:54,052 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-12-21 10:12:54,052 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-12-21 10:12:54,053 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2023-12-21 10:12:54,053 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2023-12-21 10:12:54,053 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-12-21 10:12:54,053 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-12-21 10:12:54,053 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2023-12-21 10:12:54,053 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2023-12-21 10:12:54,053 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-21 10:12:54,053 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-12-21 10:12:54,053 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-12-21 10:12:54,053 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-21 10:12:54,053 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-21 10:12:54,104 INFO L241 CfgBuilder]: Building ICFG [2023-12-21 10:12:54,105 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-21 10:12:54,313 INFO L282 CfgBuilder]: Performing block encoding [2023-12-21 10:12:54,354 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-21 10:12:54,354 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-12-21 10:12:54,354 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 10:12:54 BoogieIcfgContainer [2023-12-21 10:12:54,354 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-21 10:12:54,356 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-21 10:12:54,356 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-21 10:12:54,358 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-21 10:12:54,358 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 10:12:53" (1/3) ... [2023-12-21 10:12:54,358 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2916ff77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 10:12:54, skipping insertion in model container [2023-12-21 10:12:54,358 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:12:53" (2/3) ... [2023-12-21 10:12:54,359 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2916ff77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 10:12:54, skipping insertion in model container [2023-12-21 10:12:54,359 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 10:12:54" (3/3) ... [2023-12-21 10:12:54,359 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product51.cil.c [2023-12-21 10:12:54,377 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-21 10:12:54,378 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-21 10:12:54,415 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-21 10:12:54,420 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;@7bbb982e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-21 10:12:54,420 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-21 10:12:54,424 INFO L276 IsEmpty]: Start isEmpty. Operand has 69 states, 48 states have (on average 1.5625) internal successors, (75), 57 states have internal predecessors, (75), 12 states have call successors, (12), 7 states have call predecessors, (12), 7 states have return successors, (12), 9 states have call predecessors, (12), 12 states have call successors, (12) [2023-12-21 10:12:54,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-12-21 10:12:54,429 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 10:12:54,430 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 10:12:54,430 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 10:12:54,433 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 10:12:54,434 INFO L85 PathProgramCache]: Analyzing trace with hash 1271108348, now seen corresponding path program 1 times [2023-12-21 10:12:54,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 10:12:54,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404878864] [2023-12-21 10:12:54,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 10:12:54,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 10:12:54,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:12:54,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 10:12:54,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 10:12:54,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404878864] [2023-12-21 10:12:54,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [404878864] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 10:12:54,619 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 10:12:54,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-21 10:12:54,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491933491] [2023-12-21 10:12:54,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 10:12:54,625 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-21 10:12:54,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 10:12:54,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-21 10:12:54,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-21 10:12:54,658 INFO L87 Difference]: Start difference. First operand has 69 states, 48 states have (on average 1.5625) internal successors, (75), 57 states have internal predecessors, (75), 12 states have call successors, (12), 7 states have call predecessors, (12), 7 states have return successors, (12), 9 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 10:12:54,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 10:12:54,722 INFO L93 Difference]: Finished difference Result 136 states and 199 transitions. [2023-12-21 10:12:54,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-21 10:12:54,724 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2023-12-21 10:12:54,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 10:12:54,731 INFO L225 Difference]: With dead ends: 136 [2023-12-21 10:12:54,731 INFO L226 Difference]: Without dead ends: 64 [2023-12-21 10:12:54,734 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-21 10:12:54,738 INFO L413 NwaCegarLoop]: 79 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, 79 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 [2023-12-21 10:12:54,739 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 79 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 10:12:54,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2023-12-21 10:12:54,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2023-12-21 10:12:54,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 45 states have (on average 1.4444444444444444) internal successors, (65), 53 states have internal predecessors, (65), 12 states have call successors, (12), 7 states have call predecessors, (12), 6 states have return successors, (11), 8 states have call predecessors, (11), 11 states have call successors, (11) [2023-12-21 10:12:54,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 88 transitions. [2023-12-21 10:12:54,795 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 88 transitions. Word has length 12 [2023-12-21 10:12:54,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 10:12:54,795 INFO L495 AbstractCegarLoop]: Abstraction has 64 states and 88 transitions. [2023-12-21 10:12:54,796 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 10:12:54,796 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 88 transitions. [2023-12-21 10:12:54,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-12-21 10:12:54,797 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 10:12:54,797 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 10:12:54,797 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-21 10:12:54,797 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 10:12:54,797 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 10:12:54,798 INFO L85 PathProgramCache]: Analyzing trace with hash -1940814691, now seen corresponding path program 1 times [2023-12-21 10:12:54,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 10:12:54,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882789444] [2023-12-21 10:12:54,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 10:12:54,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 10:12:54,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:12:54,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 10:12:54,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 10:12:54,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [882789444] [2023-12-21 10:12:54,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [882789444] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 10:12:54,869 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 10:12:54,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 10:12:54,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12328168] [2023-12-21 10:12:54,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 10:12:54,870 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 10:12:54,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 10:12:54,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 10:12:54,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 10:12:54,871 INFO L87 Difference]: Start difference. First operand 64 states and 88 transitions. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 10:12:54,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 10:12:54,899 INFO L93 Difference]: Finished difference Result 98 states and 134 transitions. [2023-12-21 10:12:54,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 10:12:54,901 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2023-12-21 10:12:54,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 10:12:54,902 INFO L225 Difference]: With dead ends: 98 [2023-12-21 10:12:54,902 INFO L226 Difference]: Without dead ends: 56 [2023-12-21 10:12:54,904 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 10:12:54,905 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 14 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 10:12:54,905 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 113 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 10:12:54,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2023-12-21 10:12:54,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2023-12-21 10:12:54,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 40 states have (on average 1.475) internal successors, (59), 48 states have internal predecessors, (59), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 6 states have call predecessors, (9), 9 states have call successors, (9) [2023-12-21 10:12:54,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 77 transitions. [2023-12-21 10:12:54,910 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 77 transitions. Word has length 13 [2023-12-21 10:12:54,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 10:12:54,910 INFO L495 AbstractCegarLoop]: Abstraction has 56 states and 77 transitions. [2023-12-21 10:12:54,911 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 10:12:54,911 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 77 transitions. [2023-12-21 10:12:54,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-12-21 10:12:54,911 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 10:12:54,911 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 10:12:54,911 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-21 10:12:54,912 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 10:12:54,912 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 10:12:54,912 INFO L85 PathProgramCache]: Analyzing trace with hash 1317323505, now seen corresponding path program 1 times [2023-12-21 10:12:54,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 10:12:54,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783986149] [2023-12-21 10:12:54,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 10:12:54,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 10:12:54,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:12:54,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 10:12:54,983 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 10:12:54,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783986149] [2023-12-21 10:12:54,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [783986149] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 10:12:54,984 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 10:12:54,984 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 10:12:54,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213444716] [2023-12-21 10:12:54,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 10:12:54,984 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 10:12:54,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 10:12:54,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 10:12:54,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 10:12:54,985 INFO L87 Difference]: Start difference. First operand 56 states and 77 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 10:12:55,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 10:12:55,111 INFO L93 Difference]: Finished difference Result 157 states and 222 transitions. [2023-12-21 10:12:55,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-21 10:12:55,112 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2023-12-21 10:12:55,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 10:12:55,113 INFO L225 Difference]: With dead ends: 157 [2023-12-21 10:12:55,113 INFO L226 Difference]: Without dead ends: 103 [2023-12-21 10:12:55,114 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-21 10:12:55,114 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 90 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 167 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 10:12:55,115 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 167 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 10:12:55,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2023-12-21 10:12:55,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 86. [2023-12-21 10:12:55,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 62 states have (on average 1.4838709677419355) internal successors, (92), 73 states have internal predecessors, (92), 13 states have call successors, (13), 10 states have call predecessors, (13), 10 states have return successors, (14), 9 states have call predecessors, (14), 13 states have call successors, (14) [2023-12-21 10:12:55,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 119 transitions. [2023-12-21 10:12:55,130 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 119 transitions. Word has length 16 [2023-12-21 10:12:55,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 10:12:55,130 INFO L495 AbstractCegarLoop]: Abstraction has 86 states and 119 transitions. [2023-12-21 10:12:55,131 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 10:12:55,131 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 119 transitions. [2023-12-21 10:12:55,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-12-21 10:12:55,133 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 10:12:55,133 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 10:12:55,133 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-21 10:12:55,133 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 10:12:55,134 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 10:12:55,134 INFO L85 PathProgramCache]: Analyzing trace with hash 642892071, now seen corresponding path program 1 times [2023-12-21 10:12:55,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 10:12:55,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882782313] [2023-12-21 10:12:55,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 10:12:55,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 10:12:55,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:12:55,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 10:12:55,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 10:12:55,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1882782313] [2023-12-21 10:12:55,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1882782313] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 10:12:55,255 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 10:12:55,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 10:12:55,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503924610] [2023-12-21 10:12:55,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 10:12:55,256 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 10:12:55,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 10:12:55,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 10:12:55,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 10:12:55,257 INFO L87 Difference]: Start difference. First operand 86 states and 119 transitions. Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 4 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 10:12:55,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 10:12:55,362 INFO L93 Difference]: Finished difference Result 267 states and 399 transitions. [2023-12-21 10:12:55,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-21 10:12:55,362 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 4 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2023-12-21 10:12:55,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 10:12:55,364 INFO L225 Difference]: With dead ends: 267 [2023-12-21 10:12:55,364 INFO L226 Difference]: Without dead ends: 183 [2023-12-21 10:12:55,365 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-21 10:12:55,371 INFO L413 NwaCegarLoop]: 58 mSDtfsCounter, 86 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 10:12:55,372 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 228 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 10:12:55,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2023-12-21 10:12:55,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 162. [2023-12-21 10:12:55,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 117 states have (on average 1.4615384615384615) internal successors, (171), 138 states have internal predecessors, (171), 24 states have call successors, (24), 18 states have call predecessors, (24), 20 states have return successors, (35), 18 states have call predecessors, (35), 24 states have call successors, (35) [2023-12-21 10:12:55,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 230 transitions. [2023-12-21 10:12:55,393 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 230 transitions. Word has length 19 [2023-12-21 10:12:55,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 10:12:55,393 INFO L495 AbstractCegarLoop]: Abstraction has 162 states and 230 transitions. [2023-12-21 10:12:55,393 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 4 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 10:12:55,393 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 230 transitions. [2023-12-21 10:12:55,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-12-21 10:12:55,395 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 10:12:55,395 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 10:12:55,395 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-21 10:12:55,395 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 10:12:55,395 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 10:12:55,395 INFO L85 PathProgramCache]: Analyzing trace with hash -1428002004, now seen corresponding path program 1 times [2023-12-21 10:12:55,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 10:12:55,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82265483] [2023-12-21 10:12:55,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 10:12:55,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 10:12:55,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:12:55,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 10:12:55,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 10:12:55,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82265483] [2023-12-21 10:12:55,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [82265483] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 10:12:55,473 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 10:12:55,473 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 10:12:55,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522674261] [2023-12-21 10:12:55,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 10:12:55,473 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 10:12:55,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 10:12:55,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 10:12:55,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 10:12:55,474 INFO L87 Difference]: Start difference. First operand 162 states and 230 transitions. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 10:12:55,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 10:12:55,528 INFO L93 Difference]: Finished difference Result 378 states and 561 transitions. [2023-12-21 10:12:55,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 10:12:55,529 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2023-12-21 10:12:55,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 10:12:55,537 INFO L225 Difference]: With dead ends: 378 [2023-12-21 10:12:55,537 INFO L226 Difference]: Without dead ends: 218 [2023-12-21 10:12:55,539 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-21 10:12:55,546 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 43 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 10:12:55,546 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 173 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 10:12:55,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2023-12-21 10:12:55,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 213. [2023-12-21 10:12:55,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213 states, 157 states have (on average 1.375796178343949) internal successors, (216), 176 states have internal predecessors, (216), 27 states have call successors, (27), 25 states have call predecessors, (27), 28 states have return successors, (54), 28 states have call predecessors, (54), 27 states have call successors, (54) [2023-12-21 10:12:55,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 297 transitions. [2023-12-21 10:12:55,576 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 297 transitions. Word has length 21 [2023-12-21 10:12:55,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 10:12:55,577 INFO L495 AbstractCegarLoop]: Abstraction has 213 states and 297 transitions. [2023-12-21 10:12:55,577 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 10:12:55,577 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 297 transitions. [2023-12-21 10:12:55,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-12-21 10:12:55,581 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 10:12:55,581 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 10:12:55,581 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-21 10:12:55,581 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 10:12:55,582 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 10:12:55,582 INFO L85 PathProgramCache]: Analyzing trace with hash -1913365728, now seen corresponding path program 1 times [2023-12-21 10:12:55,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 10:12:55,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962054914] [2023-12-21 10:12:55,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 10:12:55,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 10:12:55,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:12:55,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 10:12:55,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:12:55,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 10:12:55,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:12:55,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 10:12:55,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 10:12:55,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1962054914] [2023-12-21 10:12:55,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1962054914] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 10:12:55,649 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 10:12:55,649 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-21 10:12:55,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143091610] [2023-12-21 10:12:55,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 10:12:55,649 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 10:12:55,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 10:12:55,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 10:12:55,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 10:12:55,650 INFO L87 Difference]: Start difference. First operand 213 states and 297 transitions. Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 3 states have internal predecessors, (30), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-21 10:12:55,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 10:12:55,818 INFO L93 Difference]: Finished difference Result 503 states and 694 transitions. [2023-12-21 10:12:55,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-21 10:12:55,819 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 3 states have internal predecessors, (30), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 35 [2023-12-21 10:12:55,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 10:12:55,820 INFO L225 Difference]: With dead ends: 503 [2023-12-21 10:12:55,820 INFO L226 Difference]: Without dead ends: 235 [2023-12-21 10:12:55,821 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-21 10:12:55,821 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 132 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 10:12:55,822 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 161 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 10:12:55,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2023-12-21 10:12:55,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 217. [2023-12-21 10:12:55,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 161 states have (on average 1.2981366459627328) internal successors, (209), 177 states have internal predecessors, (209), 23 states have call successors, (23), 20 states have call predecessors, (23), 32 states have return successors, (62), 28 states have call predecessors, (62), 23 states have call successors, (62) [2023-12-21 10:12:55,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 294 transitions. [2023-12-21 10:12:55,837 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 294 transitions. Word has length 35 [2023-12-21 10:12:55,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 10:12:55,838 INFO L495 AbstractCegarLoop]: Abstraction has 217 states and 294 transitions. [2023-12-21 10:12:55,838 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 3 states have internal predecessors, (30), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-21 10:12:55,838 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 294 transitions. [2023-12-21 10:12:55,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-12-21 10:12:55,838 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 10:12:55,838 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 10:12:55,838 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-21 10:12:55,839 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 10:12:55,839 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 10:12:55,839 INFO L85 PathProgramCache]: Analyzing trace with hash -923536778, now seen corresponding path program 1 times [2023-12-21 10:12:55,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 10:12:55,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370181889] [2023-12-21 10:12:55,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 10:12:55,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 10:12:55,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:12:55,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 10:12:55,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:12:55,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-21 10:12:55,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:12:55,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 10:12:55,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 10:12:55,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370181889] [2023-12-21 10:12:55,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [370181889] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 10:12:55,914 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 10:12:55,914 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 10:12:55,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126986019] [2023-12-21 10:12:55,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 10:12:55,915 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 10:12:55,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 10:12:55,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 10:12:55,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-21 10:12:55,916 INFO L87 Difference]: Start difference. First operand 217 states and 294 transitions. Second operand has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 5 states have internal predecessors, (27), 1 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-21 10:12:56,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 10:12:56,091 INFO L93 Difference]: Finished difference Result 459 states and 644 transitions. [2023-12-21 10:12:56,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-21 10:12:56,092 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 5 states have internal predecessors, (27), 1 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 32 [2023-12-21 10:12:56,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 10:12:56,095 INFO L225 Difference]: With dead ends: 459 [2023-12-21 10:12:56,095 INFO L226 Difference]: Without dead ends: 244 [2023-12-21 10:12:56,096 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2023-12-21 10:12:56,097 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 122 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 175 SdHoareTripleChecker+Invalid, 283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 10:12:56,097 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 175 Invalid, 283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 10:12:56,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2023-12-21 10:12:56,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 226. [2023-12-21 10:12:56,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 167 states have (on average 1.2874251497005988) internal successors, (215), 185 states have internal predecessors, (215), 24 states have call successors, (24), 20 states have call predecessors, (24), 34 states have return successors, (67), 29 states have call predecessors, (67), 24 states have call successors, (67) [2023-12-21 10:12:56,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 306 transitions. [2023-12-21 10:12:56,121 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 306 transitions. Word has length 32 [2023-12-21 10:12:56,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 10:12:56,121 INFO L495 AbstractCegarLoop]: Abstraction has 226 states and 306 transitions. [2023-12-21 10:12:56,121 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 5 states have internal predecessors, (27), 1 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-21 10:12:56,121 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 306 transitions. [2023-12-21 10:12:56,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-12-21 10:12:56,123 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 10:12:56,123 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 10:12:56,123 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-21 10:12:56,124 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 10:12:56,124 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 10:12:56,124 INFO L85 PathProgramCache]: Analyzing trace with hash -530509768, now seen corresponding path program 1 times [2023-12-21 10:12:56,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 10:12:56,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [866909089] [2023-12-21 10:12:56,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 10:12:56,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 10:12:56,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:12:56,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 10:12:56,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:12:56,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-21 10:12:56,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:12:56,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 10:12:56,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 10:12:56,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [866909089] [2023-12-21 10:12:56,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [866909089] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 10:12:56,183 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 10:12:56,183 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 10:12:56,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390999031] [2023-12-21 10:12:56,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 10:12:56,183 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 10:12:56,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 10:12:56,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 10:12:56,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-21 10:12:56,184 INFO L87 Difference]: Start difference. First operand 226 states and 306 transitions. Second operand has 6 states, 6 states have (on average 4.5) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-21 10:12:56,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 10:12:56,318 INFO L93 Difference]: Finished difference Result 450 states and 627 transitions. [2023-12-21 10:12:56,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-21 10:12:56,318 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 32 [2023-12-21 10:12:56,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 10:12:56,319 INFO L225 Difference]: With dead ends: 450 [2023-12-21 10:12:56,319 INFO L226 Difference]: Without dead ends: 226 [2023-12-21 10:12:56,320 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2023-12-21 10:12:56,320 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 102 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 10:12:56,320 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 141 Invalid, 217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 10:12:56,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2023-12-21 10:12:56,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 218. [2023-12-21 10:12:56,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 162 states have (on average 1.271604938271605) internal successors, (206), 178 states have internal predecessors, (206), 24 states have call successors, (24), 20 states have call predecessors, (24), 31 states have return successors, (59), 28 states have call predecessors, (59), 24 states have call successors, (59) [2023-12-21 10:12:56,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 289 transitions. [2023-12-21 10:12:56,347 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 289 transitions. Word has length 32 [2023-12-21 10:12:56,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 10:12:56,347 INFO L495 AbstractCegarLoop]: Abstraction has 218 states and 289 transitions. [2023-12-21 10:12:56,348 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-21 10:12:56,348 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 289 transitions. [2023-12-21 10:12:56,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-12-21 10:12:56,349 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 10:12:56,349 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 10:12:56,349 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-21 10:12:56,349 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 10:12:56,349 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 10:12:56,349 INFO L85 PathProgramCache]: Analyzing trace with hash -106137930, now seen corresponding path program 1 times [2023-12-21 10:12:56,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 10:12:56,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281516552] [2023-12-21 10:12:56,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 10:12:56,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 10:12:56,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:12:56,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-21 10:12:56,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:12:56,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-21 10:12:56,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:12:56,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 10:12:56,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:12:56,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 10:12:56,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:12:56,445 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 14 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-21 10:12:56,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 10:12:56,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [281516552] [2023-12-21 10:12:56,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [281516552] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 10:12:56,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [769157848] [2023-12-21 10:12:56,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 10:12:56,445 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 10:12:56,446 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 10:12:56,448 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) [2023-12-21 10:12:56,451 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-21 10:12:56,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:12:56,516 INFO L262 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-21 10:12:56,521 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 10:12:56,634 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 10:12:56,635 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 10:12:56,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [769157848] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 10:12:56,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 10:12:56,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [9] total 12 [2023-12-21 10:12:56,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494911642] [2023-12-21 10:12:56,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 10:12:56,636 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 10:12:56,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 10:12:56,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 10:12:56,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2023-12-21 10:12:56,637 INFO L87 Difference]: Start difference. First operand 218 states and 289 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2023-12-21 10:12:56,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 10:12:56,806 INFO L93 Difference]: Finished difference Result 509 states and 710 transitions. [2023-12-21 10:12:56,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-21 10:12:56,807 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) Word has length 57 [2023-12-21 10:12:56,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 10:12:56,808 INFO L225 Difference]: With dead ends: 509 [2023-12-21 10:12:56,809 INFO L226 Difference]: Without dead ends: 293 [2023-12-21 10:12:56,809 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 60 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2023-12-21 10:12:56,811 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 147 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 10:12:56,811 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [154 Valid, 158 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 10:12:56,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2023-12-21 10:12:56,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 291. [2023-12-21 10:12:56,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 291 states, 217 states have (on average 1.271889400921659) internal successors, (276), 234 states have internal predecessors, (276), 37 states have call successors, (37), 33 states have call predecessors, (37), 36 states have return successors, (71), 35 states have call predecessors, (71), 37 states have call successors, (71) [2023-12-21 10:12:56,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 291 states and 384 transitions. [2023-12-21 10:12:56,831 INFO L78 Accepts]: Start accepts. Automaton has 291 states and 384 transitions. Word has length 57 [2023-12-21 10:12:56,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 10:12:56,832 INFO L495 AbstractCegarLoop]: Abstraction has 291 states and 384 transitions. [2023-12-21 10:12:56,832 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2023-12-21 10:12:56,832 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states and 384 transitions. [2023-12-21 10:12:56,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-12-21 10:12:56,833 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 10:12:56,833 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 10:12:56,841 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-12-21 10:12:57,041 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 10:12:57,041 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 10:12:57,042 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 10:12:57,042 INFO L85 PathProgramCache]: Analyzing trace with hash 1353719568, now seen corresponding path program 1 times [2023-12-21 10:12:57,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 10:12:57,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839595451] [2023-12-21 10:12:57,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 10:12:57,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 10:12:57,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:12:57,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 10:12:57,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:12:57,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-21 10:12:57,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:12:57,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-21 10:12:57,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:12:57,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-12-21 10:12:57,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:12:57,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 10:12:57,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:12:57,136 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 10 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-21 10:12:57,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 10:12:57,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839595451] [2023-12-21 10:12:57,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1839595451] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 10:12:57,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1007398443] [2023-12-21 10:12:57,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 10:12:57,137 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 10:12:57,137 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 10:12:57,146 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 10:12:57,168 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-21 10:12:57,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:12:57,217 INFO L262 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-21 10:12:57,221 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 10:12:57,273 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 13 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 10:12:57,273 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 10:12:57,344 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 11 proven. 5 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-21 10:12:57,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1007398443] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 10:12:57,345 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-21 10:12:57,345 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5, 5] total 8 [2023-12-21 10:12:57,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263542785] [2023-12-21 10:12:57,345 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-21 10:12:57,346 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 10:12:57,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 10:12:57,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 10:12:57,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-12-21 10:12:57,347 INFO L87 Difference]: Start difference. First operand 291 states and 384 transitions. Second operand has 8 states, 8 states have (on average 7.0) internal successors, (56), 5 states have internal predecessors, (56), 3 states have call successors, (12), 6 states have call predecessors, (12), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-21 10:12:57,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 10:12:57,641 INFO L93 Difference]: Finished difference Result 695 states and 958 transitions. [2023-12-21 10:12:57,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-21 10:12:57,642 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 5 states have internal predecessors, (56), 3 states have call successors, (12), 6 states have call predecessors, (12), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 61 [2023-12-21 10:12:57,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 10:12:57,644 INFO L225 Difference]: With dead ends: 695 [2023-12-21 10:12:57,644 INFO L226 Difference]: Without dead ends: 440 [2023-12-21 10:12:57,645 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 131 SyntacticMatches, 6 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=126, Invalid=294, Unknown=0, NotChecked=0, Total=420 [2023-12-21 10:12:57,646 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 177 mSDsluCounter, 209 mSDsCounter, 0 mSdLazyCounter, 375 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 266 SdHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 10:12:57,647 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [181 Valid, 266 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 375 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 10:12:57,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 440 states. [2023-12-21 10:12:57,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 440 to 409. [2023-12-21 10:12:57,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 409 states, 304 states have (on average 1.263157894736842) internal successors, (384), 327 states have internal predecessors, (384), 53 states have call successors, (53), 48 states have call predecessors, (53), 51 states have return successors, (106), 48 states have call predecessors, (106), 53 states have call successors, (106) [2023-12-21 10:12:57,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 543 transitions. [2023-12-21 10:12:57,697 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 543 transitions. Word has length 61 [2023-12-21 10:12:57,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 10:12:57,700 INFO L495 AbstractCegarLoop]: Abstraction has 409 states and 543 transitions. [2023-12-21 10:12:57,701 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 5 states have internal predecessors, (56), 3 states have call successors, (12), 6 states have call predecessors, (12), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-21 10:12:57,701 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 543 transitions. [2023-12-21 10:12:57,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-12-21 10:12:57,702 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 10:12:57,702 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 10:12:57,709 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-12-21 10:12:57,909 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-12-21 10:12:57,909 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 10:12:57,910 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 10:12:57,910 INFO L85 PathProgramCache]: Analyzing trace with hash 781343412, now seen corresponding path program 2 times [2023-12-21 10:12:57,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 10:12:57,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359942210] [2023-12-21 10:12:57,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 10:12:57,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 10:12:57,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:12:58,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 10:12:58,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:12:58,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-21 10:12:58,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:12:58,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-21 10:12:58,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:12:58,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-12-21 10:12:58,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:12:58,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 10:12:58,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:12:58,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 10:12:58,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:12:58,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-21 10:12:58,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:12:58,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 10:12:58,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:12:58,095 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 44 proven. 9 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-21 10:12:58,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 10:12:58,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359942210] [2023-12-21 10:12:58,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [359942210] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 10:12:58,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2117731477] [2023-12-21 10:12:58,096 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-21 10:12:58,096 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 10:12:58,096 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 10:12:58,097 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 10:12:58,111 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-21 10:12:58,160 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-21 10:12:58,161 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-21 10:12:58,162 INFO L262 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-21 10:12:58,164 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 10:12:58,222 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-12-21 10:12:58,222 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 10:12:58,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2117731477] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 10:12:58,222 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 10:12:58,222 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2023-12-21 10:12:58,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804998737] [2023-12-21 10:12:58,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 10:12:58,223 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 10:12:58,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 10:12:58,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 10:12:58,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2023-12-21 10:12:58,224 INFO L87 Difference]: Start difference. First operand 409 states and 543 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 3 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-21 10:12:58,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 10:12:58,340 INFO L93 Difference]: Finished difference Result 1058 states and 1447 transitions. [2023-12-21 10:12:58,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-21 10:12:58,340 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 3 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 90 [2023-12-21 10:12:58,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 10:12:58,343 INFO L225 Difference]: With dead ends: 1058 [2023-12-21 10:12:58,344 INFO L226 Difference]: Without dead ends: 684 [2023-12-21 10:12:58,345 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 101 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2023-12-21 10:12:58,345 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 95 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 305 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 10:12:58,345 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 305 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 10:12:58,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 684 states. [2023-12-21 10:12:58,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 684 to 589. [2023-12-21 10:12:58,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 589 states, 437 states have (on average 1.242562929061785) internal successors, (543), 465 states have internal predecessors, (543), 74 states have call successors, (74), 72 states have call predecessors, (74), 77 states have return successors, (141), 70 states have call predecessors, (141), 74 states have call successors, (141) [2023-12-21 10:12:58,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 589 states to 589 states and 758 transitions. [2023-12-21 10:12:58,376 INFO L78 Accepts]: Start accepts. Automaton has 589 states and 758 transitions. Word has length 90 [2023-12-21 10:12:58,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 10:12:58,377 INFO L495 AbstractCegarLoop]: Abstraction has 589 states and 758 transitions. [2023-12-21 10:12:58,377 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 3 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-21 10:12:58,377 INFO L276 IsEmpty]: Start isEmpty. Operand 589 states and 758 transitions. [2023-12-21 10:12:58,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-12-21 10:12:58,379 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 10:12:58,379 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 10:12:58,386 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-21 10:12:58,586 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 10:12:58,586 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 10:12:58,587 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 10:12:58,587 INFO L85 PathProgramCache]: Analyzing trace with hash 1674829750, now seen corresponding path program 1 times [2023-12-21 10:12:58,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 10:12:58,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605881183] [2023-12-21 10:12:58,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 10:12:58,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 10:12:58,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:12:58,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 10:12:58,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:12:58,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-21 10:12:58,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:12:58,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-21 10:12:58,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:12:58,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-12-21 10:12:58,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:12:58,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 10:12:58,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:12:58,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 10:12:58,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:12:58,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-21 10:12:58,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:12:58,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 10:12:58,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:12:58,692 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-21 10:12:58,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 10:12:58,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1605881183] [2023-12-21 10:12:58,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1605881183] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 10:12:58,692 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 10:12:58,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 10:12:58,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952325035] [2023-12-21 10:12:58,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 10:12:58,693 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 10:12:58,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 10:12:58,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 10:12:58,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-12-21 10:12:58,693 INFO L87 Difference]: Start difference. First operand 589 states and 758 transitions. Second operand has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (6), 5 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-12-21 10:12:58,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 10:12:58,801 INFO L93 Difference]: Finished difference Result 814 states and 1032 transitions. [2023-12-21 10:12:58,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-21 10:12:58,801 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (6), 5 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 90 [2023-12-21 10:12:58,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 10:12:58,802 INFO L225 Difference]: With dead ends: 814 [2023-12-21 10:12:58,802 INFO L226 Difference]: Without dead ends: 0 [2023-12-21 10:12:58,803 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-12-21 10:12:58,803 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 49 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 10:12:58,803 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 134 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 198 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 10:12:58,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-21 10:12:58,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-21 10:12:58,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 10:12:58,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-21 10:12:58,804 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 90 [2023-12-21 10:12:58,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 10:12:58,804 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-21 10:12:58,805 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (6), 5 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-12-21 10:12:58,805 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-21 10:12:58,805 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-21 10:12:58,807 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-21 10:12:58,807 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-21 10:12:58,808 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-21 10:12:59,461 INFO L899 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 423 430) no Hoare annotation was computed. [2023-12-21 10:12:59,462 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 423 430) the Hoare annotation is: (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= 0 ~systemActive~0)) [2023-12-21 10:12:59,462 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 356 362) no Hoare annotation was computed. [2023-12-21 10:12:59,462 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 356 362) the Hoare annotation is: true [2023-12-21 10:12:59,462 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 214 225) the Hoare annotation is: true [2023-12-21 10:12:59,462 INFO L899 garLoopResultBuilder]: For program point L218-1(lines 214 225) no Hoare annotation was computed. [2023-12-21 10:12:59,462 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 214 225) no Hoare annotation was computed. [2023-12-21 10:12:59,462 INFO L899 garLoopResultBuilder]: For program point L515(lines 515 519) no Hoare annotation was computed. [2023-12-21 10:12:59,462 INFO L899 garLoopResultBuilder]: For program point L515-2(lines 515 519) no Hoare annotation was computed. [2023-12-21 10:12:59,462 INFO L895 garLoopResultBuilder]: At program point L404(line 404) the Hoare annotation is: (let ((.cse1 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (= 0 ~systemActive~0))) (and (or (< |old(~waterLevel~0)| 2) .cse0) (or .cse1 (< |old(~waterLevel~0)| 1)) (or .cse1 (not .cse0)))) [2023-12-21 10:12:59,462 INFO L895 garLoopResultBuilder]: At program point L400(line 400) the Hoare annotation is: (let ((.cse1 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (= 0 ~systemActive~0))) (and (or (< |old(~waterLevel~0)| 2) (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= 1 |timeShift_processEnvironment_~tmp~3#1|) (<= 1 ~waterLevel~0) (<= ~waterLevel~0 |old(~waterLevel~0)|)) .cse0) (or .cse1 (< |old(~waterLevel~0)| 1)) (or .cse1 (not .cse0)))) [2023-12-21 10:12:59,462 INFO L899 garLoopResultBuilder]: For program point L169(lines 169 175) no Hoare annotation was computed. [2023-12-21 10:12:59,462 INFO L899 garLoopResultBuilder]: For program point L165(lines 165 178) no Hoare annotation was computed. [2023-12-21 10:12:59,462 INFO L899 garLoopResultBuilder]: For program point L165-1(lines 157 181) no Hoare annotation was computed. [2023-12-21 10:12:59,463 INFO L899 garLoopResultBuilder]: For program point L194(lines 194 198) no Hoare annotation was computed. [2023-12-21 10:12:59,463 INFO L899 garLoopResultBuilder]: For program point L194-2(lines 190 201) no Hoare annotation was computed. [2023-12-21 10:12:59,463 INFO L895 garLoopResultBuilder]: At program point L409(line 409) the Hoare annotation is: (let ((.cse1 (= |old(~pumpRunning~0)| 0))) (let ((.cse0 (not .cse1)) (.cse2 (= 0 ~systemActive~0))) (and (or .cse0 (< |old(~waterLevel~0)| 1) (and (= ~pumpRunning~0 0) (= |old(~waterLevel~0)| ~waterLevel~0))) (or (< |old(~waterLevel~0)| 2) .cse1 .cse2) (or .cse0 (not .cse2))))) [2023-12-21 10:12:59,463 INFO L899 garLoopResultBuilder]: For program point L409-1(lines 390 414) no Hoare annotation was computed. [2023-12-21 10:12:59,463 INFO L899 garLoopResultBuilder]: For program point L343-1(lines 343 349) no Hoare annotation was computed. [2023-12-21 10:12:59,463 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 332 355) the Hoare annotation is: (let ((.cse2 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse3 (= 0 ~systemActive~0)) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0))) (and (or .cse0 (and .cse1 .cse2) (not .cse3)) (or (< |old(~waterLevel~0)| 2) (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse2) .cse3) (or (< 1 |old(~waterLevel~0)|) .cse0 (< |old(~waterLevel~0)| 1) (and .cse1 (= ~waterLevel~0 1))))) [2023-12-21 10:12:59,463 INFO L899 garLoopResultBuilder]: For program point L612(line 612) no Hoare annotation was computed. [2023-12-21 10:12:59,463 INFO L899 garLoopResultBuilder]: For program point L336-1(lines 335 354) no Hoare annotation was computed. [2023-12-21 10:12:59,463 INFO L899 garLoopResultBuilder]: For program point L398(lines 398 406) no Hoare annotation was computed. [2023-12-21 10:12:59,463 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 332 355) no Hoare annotation was computed. [2023-12-21 10:12:59,463 INFO L899 garLoopResultBuilder]: For program point L394(lines 394 411) no Hoare annotation was computed. [2023-12-21 10:12:59,463 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 612) no Hoare annotation was computed. [2023-12-21 10:12:59,463 INFO L902 garLoopResultBuilder]: At program point L66-1(lines 66 70) the Hoare annotation is: true [2023-12-21 10:12:59,463 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 52 81) no Hoare annotation was computed. [2023-12-21 10:12:59,464 INFO L902 garLoopResultBuilder]: At program point L62-2(lines 62 76) the Hoare annotation is: true [2023-12-21 10:12:59,464 INFO L902 garLoopResultBuilder]: At program point L58(line 58) the Hoare annotation is: true [2023-12-21 10:12:59,464 INFO L899 garLoopResultBuilder]: For program point L58-1(line 58) no Hoare annotation was computed. [2023-12-21 10:12:59,464 INFO L899 garLoopResultBuilder]: For program point L77(lines 52 81) no Hoare annotation was computed. [2023-12-21 10:12:59,464 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 52 81) the Hoare annotation is: true [2023-12-21 10:12:59,464 INFO L899 garLoopResultBuilder]: For program point L73(line 73) no Hoare annotation was computed. [2023-12-21 10:12:59,464 INFO L899 garLoopResultBuilder]: For program point L66(lines 66 70) no Hoare annotation was computed. [2023-12-21 10:12:59,464 INFO L895 garLoopResultBuilder]: At program point L531(line 531) the Hoare annotation is: (and (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0) (not (= 0 ~systemActive~0))) [2023-12-21 10:12:59,464 INFO L899 garLoopResultBuilder]: For program point L552(lines 551 598) no Hoare annotation was computed. [2023-12-21 10:12:59,464 INFO L899 garLoopResultBuilder]: For program point L581(lines 581 594) no Hoare annotation was computed. [2023-12-21 10:12:59,464 INFO L895 garLoopResultBuilder]: At program point L573(line 573) the Hoare annotation is: (let ((.cse4 (= 0 ~systemActive~0))) (let ((.cse1 (= |ULTIMATE.start_main_~tmp~0#1| 1)) (.cse3 (not .cse4)) (.cse0 (= ~pumpRunning~0 0)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 .cse2 (<= 1 ~waterLevel~0) .cse3) (and .cse1 (<= 2 ~waterLevel~0) .cse2 .cse3) (and .cse0 .cse2 .cse4)))) [2023-12-21 10:12:59,464 INFO L899 garLoopResultBuilder]: For program point L602(lines 541 606) no Hoare annotation was computed. [2023-12-21 10:12:59,464 INFO L899 garLoopResultBuilder]: For program point L561(lines 561 567) no Hoare annotation was computed. [2023-12-21 10:12:59,464 INFO L899 garLoopResultBuilder]: For program point L561-1(lines 561 567) no Hoare annotation was computed. [2023-12-21 10:12:59,464 INFO L899 garLoopResultBuilder]: For program point L140(lines 140 147) no Hoare annotation was computed. [2023-12-21 10:12:59,464 INFO L899 garLoopResultBuilder]: For program point L140-2(lines 140 147) no Hoare annotation was computed. [2023-12-21 10:12:59,464 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-12-21 10:12:59,465 INFO L895 garLoopResultBuilder]: At program point L599(lines 550 600) the Hoare annotation is: false [2023-12-21 10:12:59,465 INFO L899 garLoopResultBuilder]: For program point L529(lines 529 535) no Hoare annotation was computed. [2023-12-21 10:12:59,465 INFO L899 garLoopResultBuilder]: For program point L529-1(lines 529 535) no Hoare annotation was computed. [2023-12-21 10:12:59,465 INFO L899 garLoopResultBuilder]: For program point L587(lines 587 593) no Hoare annotation was computed. [2023-12-21 10:12:59,465 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-12-21 10:12:59,465 INFO L895 garLoopResultBuilder]: At program point L587-2(lines 581 594) the Hoare annotation is: (let ((.cse4 (= 0 ~systemActive~0))) (let ((.cse1 (= |ULTIMATE.start_main_~tmp~0#1| 1)) (.cse3 (not .cse4)) (.cse0 (= ~pumpRunning~0 0)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 .cse2 (<= 1 ~waterLevel~0) .cse3) (and .cse1 (<= 2 ~waterLevel~0) .cse2 .cse3) (and .cse0 .cse2 .cse4)))) [2023-12-21 10:12:59,465 INFO L899 garLoopResultBuilder]: For program point L571(lines 571 577) no Hoare annotation was computed. [2023-12-21 10:12:59,465 INFO L899 garLoopResultBuilder]: For program point L571-1(lines 571 577) no Hoare annotation was computed. [2023-12-21 10:12:59,465 INFO L895 garLoopResultBuilder]: At program point L596(lines 551 598) the Hoare annotation is: (let ((.cse4 (= 0 ~systemActive~0))) (let ((.cse1 (= |ULTIMATE.start_main_~tmp~0#1| 1)) (.cse3 (not .cse4)) (.cse0 (= ~pumpRunning~0 0)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 .cse2 (<= 1 ~waterLevel~0) .cse3) (and .cse1 (<= 2 ~waterLevel~0) .cse2 .cse3) (and .cse0 .cse2 .cse4)))) [2023-12-21 10:12:59,465 INFO L895 garLoopResultBuilder]: At program point L563(line 563) the Hoare annotation is: (let ((.cse4 (= 0 ~systemActive~0))) (let ((.cse1 (= |ULTIMATE.start_main_~tmp~0#1| 1)) (.cse3 (not .cse4)) (.cse0 (= ~pumpRunning~0 0)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 .cse2 (<= 1 ~waterLevel~0) .cse3) (and .cse1 (<= 2 ~waterLevel~0) .cse2 .cse3) (and .cse0 .cse2 .cse4)))) [2023-12-21 10:12:59,465 INFO L895 garLoopResultBuilder]: At program point L378(line 378) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= |processEnvironment__wrappee__highWaterSensor_~tmp~2#1| 0))) (or (and (<= 1 |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_#res#1|) .cse0 .cse1) (and .cse0 .cse1 (<= 2 ~waterLevel~0)) (not (= |old(~pumpRunning~0)| 0)) (< ~waterLevel~0 1) (= 0 ~systemActive~0))) [2023-12-21 10:12:59,465 INFO L899 garLoopResultBuilder]: For program point L372(lines 372 380) no Hoare annotation was computed. [2023-12-21 10:12:59,465 INFO L899 garLoopResultBuilder]: For program point L368(lines 368 385) no Hoare annotation was computed. [2023-12-21 10:12:59,465 INFO L899 garLoopResultBuilder]: For program point L496(lines 496 500) no Hoare annotation was computed. [2023-12-21 10:12:59,465 INFO L899 garLoopResultBuilder]: For program point L271(lines 271 277) no Hoare annotation was computed. [2023-12-21 10:12:59,465 INFO L899 garLoopResultBuilder]: For program point L496-2(lines 496 500) no Hoare annotation was computed. [2023-12-21 10:12:59,465 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 364 388) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) (< ~waterLevel~0 1) (= 0 ~systemActive~0)) [2023-12-21 10:12:59,465 INFO L899 garLoopResultBuilder]: For program point isHighWaterSensorDry_returnLabel#1(lines 267 280) no Hoare annotation was computed. [2023-12-21 10:12:59,466 INFO L895 garLoopResultBuilder]: At program point L383(line 383) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (< ~waterLevel~0 1) (= 0 ~systemActive~0)) [2023-12-21 10:12:59,466 INFO L899 garLoopResultBuilder]: For program point L383-1(lines 364 388) no Hoare annotation was computed. [2023-12-21 10:12:59,466 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 364 388) no Hoare annotation was computed. [2023-12-21 10:12:59,466 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 202 213) no Hoare annotation was computed. [2023-12-21 10:12:59,466 INFO L899 garLoopResultBuilder]: For program point L206-1(lines 202 213) no Hoare annotation was computed. [2023-12-21 10:12:59,466 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 202 213) the Hoare annotation is: (let ((.cse0 (not (= ~pumpRunning~0 0))) (.cse1 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse2 (= 0 ~systemActive~0))) (and (or .cse0 .cse1 (not .cse2)) (or (< 1 |old(~waterLevel~0)|) (< |old(~waterLevel~0)| 1) .cse0 (= ~waterLevel~0 1)) (or (< |old(~waterLevel~0)| 2) .cse1 .cse2))) [2023-12-21 10:12:59,467 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 10:12:59,469 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-21 10:12:59,476 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.12 10:12:59 BoogieIcfgContainer [2023-12-21 10:12:59,477 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-21 10:12:59,477 INFO L158 Benchmark]: Toolchain (without parser) took 5940.17ms. Allocated memory was 235.9MB in the beginning and 283.1MB in the end (delta: 47.2MB). Free memory was 193.3MB in the beginning and 114.2MB in the end (delta: 79.1MB). Peak memory consumption was 126.7MB. Max. memory is 8.0GB. [2023-12-21 10:12:59,477 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 195.0MB. Free memory is still 149.6MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-21 10:12:59,477 INFO L158 Benchmark]: CACSL2BoogieTranslator took 383.78ms. Allocated memory is still 235.9MB. Free memory was 192.8MB in the beginning and 173.3MB in the end (delta: 19.5MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. [2023-12-21 10:12:59,477 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.53ms. Allocated memory is still 235.9MB. Free memory was 172.9MB in the beginning and 170.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-21 10:12:59,478 INFO L158 Benchmark]: Boogie Preprocessor took 35.65ms. Allocated memory is still 235.9MB. Free memory was 170.8MB in the beginning and 168.6MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-21 10:12:59,478 INFO L158 Benchmark]: RCFGBuilder took 351.26ms. Allocated memory is still 235.9MB. Free memory was 168.1MB in the beginning and 146.6MB in the end (delta: 21.4MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. [2023-12-21 10:12:59,478 INFO L158 Benchmark]: TraceAbstraction took 5120.97ms. Allocated memory was 235.9MB in the beginning and 283.1MB in the end (delta: 47.2MB). Free memory was 146.1MB in the beginning and 114.2MB in the end (delta: 31.9MB). Peak memory consumption was 79.5MB. Max. memory is 8.0GB. [2023-12-21 10:12:59,479 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 195.0MB. Free memory is still 149.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 383.78ms. Allocated memory is still 235.9MB. Free memory was 192.8MB in the beginning and 173.3MB in the end (delta: 19.5MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 44.53ms. Allocated memory is still 235.9MB. Free memory was 172.9MB in the beginning and 170.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 35.65ms. Allocated memory is still 235.9MB. Free memory was 170.8MB in the beginning and 168.6MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 351.26ms. Allocated memory is still 235.9MB. Free memory was 168.1MB in the beginning and 146.6MB in the end (delta: 21.4MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. * TraceAbstraction took 5120.97ms. Allocated memory was 235.9MB in the beginning and 283.1MB in the end (delta: 47.2MB). Free memory was 146.1MB in the beginning and 114.2MB in the end (delta: 31.9MB). Peak memory consumption was 79.5MB. 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,"Test.i","") [49] - GenericResultAtLocation [Line: 153]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification4_spec.i","") [153] - GenericResultAtLocation [Line: 182]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [182] - GenericResultAtLocation [Line: 290]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [290] - GenericResultAtLocation [Line: 325]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [325] - GenericResultAtLocation [Line: 540]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [540] - GenericResultAtLocation [Line: 607]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [607] - GenericResultAtLocation [Line: 616]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [616] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 612]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 69 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 5.1s, OverallIterations: 12, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1081 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1057 mSDsluCounter, 2100 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1388 mSDsCounter, 258 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1720 IncrementalHoareTripleChecker+Invalid, 1978 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 258 mSolverCounterUnsat, 712 mSDtfsCounter, 1720 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 427 GetRequests, 335 SyntacticMatches, 9 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 158 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=589occurred in iteration=11, InterpolantAutomatonStates: 86, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 12 MinimizatonAttempts, 215 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 21 LocationsWithAnnotation, 718 PreInvPairs, 770 NumberOfFragments, 430 HoareAnnotationTreeSize, 718 FormulaSimplifications, 2390 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 21 FormulaSimplificationsInter, 2113 FormulaSimplificationTreeSizeReductionInter, 0.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 686 NumberOfCodeBlocks, 686 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 731 ConstructedInterpolants, 0 QuantifiedInterpolants, 1412 SizeOfPredicates, 6 NumberOfNonLiveVariables, 802 ConjunctsInSsa, 19 ConjunctsInUnsatCore, 16 InterpolantComputations, 11 PerfectInterpolantSequences, 258/285 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 550]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 551]: Loop Invariant Derived loop invariant: (((((((pumpRunning == 0) && (tmp == 1)) && (splverifierCounter == 0)) && (1 <= waterLevel)) && !((0 == systemActive))) || ((((tmp == 1) && (2 <= waterLevel)) && (splverifierCounter == 0)) && !((0 == systemActive)))) || (((pumpRunning == 0) && (splverifierCounter == 0)) && (0 == systemActive))) - InvariantResult [Line: 62]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2023-12-21 10:12:59,492 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...