/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_spec3_product16.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-21 10:11:50,666 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-21 10:11:50,730 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 10:11:50,733 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-21 10:11:50,734 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-21 10:11:50,754 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-21 10:11:50,754 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-21 10:11:50,755 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-21 10:11:50,755 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-21 10:11:50,758 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-21 10:11:50,759 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-21 10:11:50,759 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-21 10:11:50,759 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-21 10:11:50,760 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-21 10:11:50,761 INFO L153 SettingsManager]: * Use SBE=true [2023-12-21 10:11:50,761 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-21 10:11:50,761 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-21 10:11:50,761 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-21 10:11:50,761 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-21 10:11:50,761 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-21 10:11:50,761 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-21 10:11:50,762 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-21 10:11:50,762 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-21 10:11:50,762 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-21 10:11:50,762 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-21 10:11:50,762 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-21 10:11:50,762 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-21 10:11:50,763 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-21 10:11:50,763 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-21 10:11:50,763 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-21 10:11:50,764 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-21 10:11:50,764 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-21 10:11:50,764 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-21 10:11:50,764 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-21 10:11:50,764 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-21 10:11:50,764 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-21 10:11:50,765 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-21 10:11:50,765 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-21 10:11:50,765 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-21 10:11:50,765 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-21 10:11:50,765 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-21 10:11:50,765 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-21 10:11:50,765 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-21 10:11:50,765 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-21 10:11:51,010 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-21 10:11:51,045 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-21 10:11:51,048 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-21 10:11:51,049 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-21 10:11:51,049 INFO L274 PluginConnector]: CDTParser initialized [2023-12-21 10:11:51,050 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product16.cil.c [2023-12-21 10:11:52,242 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-21 10:11:52,512 INFO L384 CDTParser]: Found 1 translation units. [2023-12-21 10:11:52,512 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product16.cil.c [2023-12-21 10:11:52,544 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fc94d7fc8/93cc28854a194d5c93d016cc85d0d1ff/FLAG99c274810 [2023-12-21 10:11:52,559 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fc94d7fc8/93cc28854a194d5c93d016cc85d0d1ff [2023-12-21 10:11:52,561 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-21 10:11:52,562 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-21 10:11:52,564 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-21 10:11:52,564 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-21 10:11:52,568 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-21 10:11:52,568 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 10:11:52" (1/1) ... [2023-12-21 10:11:52,569 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a500732 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:11:52, skipping insertion in model container [2023-12-21 10:11:52,569 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 10:11:52" (1/1) ... [2023-12-21 10:11:52,608 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-21 10:11:52,738 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_spec3_product16.cil.c[1605,1618] [2023-12-21 10:11:52,838 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-21 10:11:52,852 INFO L202 MainTranslator]: Completed pre-run [2023-12-21 10:11:52,858 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [49] [2023-12-21 10:11:52,859 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [58] [2023-12-21 10:11:52,859 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [162] [2023-12-21 10:11:52,860 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [528] [2023-12-21 10:11:52,860 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [599] [2023-12-21 10:11:52,860 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [779] [2023-12-21 10:11:52,860 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [814] [2023-12-21 10:11:52,860 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [895] [2023-12-21 10:11:52,871 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_spec3_product16.cil.c[1605,1618] [2023-12-21 10:11:52,926 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-21 10:11:52,945 INFO L206 MainTranslator]: Completed translation [2023-12-21 10:11:52,946 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:11:52 WrapperNode [2023-12-21 10:11:52,946 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-21 10:11:52,947 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-21 10:11:52,947 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-21 10:11:52,947 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-21 10:11:52,952 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:11:52" (1/1) ... [2023-12-21 10:11:52,973 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:11:52" (1/1) ... [2023-12-21 10:11:52,991 INFO L138 Inliner]: procedures = 53, calls = 98, calls flagged for inlining = 20, calls inlined = 16, statements flattened = 157 [2023-12-21 10:11:52,991 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-21 10:11:52,992 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-21 10:11:52,992 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-21 10:11:52,992 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-21 10:11:53,002 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:11:52" (1/1) ... [2023-12-21 10:11:53,003 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:11:52" (1/1) ... [2023-12-21 10:11:53,004 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:11:52" (1/1) ... [2023-12-21 10:11:53,018 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 10:11:53,018 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:11:52" (1/1) ... [2023-12-21 10:11:53,018 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:11:52" (1/1) ... [2023-12-21 10:11:53,021 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:11:52" (1/1) ... [2023-12-21 10:11:53,024 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:11:52" (1/1) ... [2023-12-21 10:11:53,025 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:11:52" (1/1) ... [2023-12-21 10:11:53,026 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:11:52" (1/1) ... [2023-12-21 10:11:53,027 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-21 10:11:53,028 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-21 10:11:53,028 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-21 10:11:53,028 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-21 10:11:53,029 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:11:52" (1/1) ... [2023-12-21 10:11:53,033 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-21 10:11:53,042 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 10:11:53,094 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 10:11:53,112 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 10:11:53,122 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-21 10:11:53,122 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2023-12-21 10:11:53,122 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2023-12-21 10:11:53,123 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-12-21 10:11:53,123 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-12-21 10:11:53,123 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-12-21 10:11:53,123 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-12-21 10:11:53,123 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-12-21 10:11:53,123 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-12-21 10:11:53,123 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2023-12-21 10:11:53,123 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2023-12-21 10:11:53,123 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2023-12-21 10:11:53,123 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2023-12-21 10:11:53,123 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2023-12-21 10:11:53,123 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2023-12-21 10:11:53,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-21 10:11:53,124 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-12-21 10:11:53,124 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-12-21 10:11:53,124 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-21 10:11:53,124 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-21 10:11:53,179 INFO L241 CfgBuilder]: Building ICFG [2023-12-21 10:11:53,181 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-21 10:11:53,364 INFO L282 CfgBuilder]: Performing block encoding [2023-12-21 10:11:53,405 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-21 10:11:53,405 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-12-21 10:11:53,406 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 10:11:53 BoogieIcfgContainer [2023-12-21 10:11:53,406 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-21 10:11:53,407 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-21 10:11:53,407 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-21 10:11:53,410 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-21 10:11:53,410 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 10:11:52" (1/3) ... [2023-12-21 10:11:53,410 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15c431eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 10:11:53, skipping insertion in model container [2023-12-21 10:11:53,410 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:11:52" (2/3) ... [2023-12-21 10:11:53,411 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15c431eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 10:11:53, skipping insertion in model container [2023-12-21 10:11:53,411 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 10:11:53" (3/3) ... [2023-12-21 10:11:53,412 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product16.cil.c [2023-12-21 10:11:53,426 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-21 10:11:53,426 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-21 10:11:53,461 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-21 10:11:53,467 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;@6fccfa47, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-21 10:11:53,467 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-21 10:11:53,470 INFO L276 IsEmpty]: Start isEmpty. Operand has 67 states, 44 states have (on average 1.5227272727272727) internal successors, (67), 51 states have internal predecessors, (67), 13 states have call successors, (13), 8 states have call predecessors, (13), 8 states have return successors, (13), 11 states have call predecessors, (13), 13 states have call successors, (13) [2023-12-21 10:11:53,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-12-21 10:11:53,483 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 10:11:53,484 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 10:11:53,484 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 10:11:53,488 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 10:11:53,488 INFO L85 PathProgramCache]: Analyzing trace with hash -2001616347, now seen corresponding path program 1 times [2023-12-21 10:11:53,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 10:11:53,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [616612252] [2023-12-21 10:11:53,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 10:11:53,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 10:11:53,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:11:53,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-21 10:11:53,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:11:53,649 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 10:11:53,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 10:11:53,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [616612252] [2023-12-21 10:11:53,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [616612252] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 10:11:53,650 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 10:11:53,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-21 10:11:53,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394120673] [2023-12-21 10:11:53,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 10:11:53,660 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-21 10:11:53,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 10:11:53,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-21 10:11:53,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-21 10:11:53,685 INFO L87 Difference]: Start difference. First operand has 67 states, 44 states have (on average 1.5227272727272727) internal successors, (67), 51 states have internal predecessors, (67), 13 states have call successors, (13), 8 states have call predecessors, (13), 8 states have return successors, (13), 11 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-21 10:11:53,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 10:11:53,723 INFO L93 Difference]: Finished difference Result 132 states and 187 transitions. [2023-12-21 10:11:53,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-21 10:11:53,725 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2023-12-21 10:11:53,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 10:11:53,732 INFO L225 Difference]: With dead ends: 132 [2023-12-21 10:11:53,732 INFO L226 Difference]: Without dead ends: 62 [2023-12-21 10:11:53,737 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-21 10:11:53,740 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 10:11:53,740 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 74 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 10:11:53,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2023-12-21 10:11:53,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2023-12-21 10:11:53,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 41 states have (on average 1.3902439024390243) internal successors, (57), 47 states have internal predecessors, (57), 13 states have call successors, (13), 8 states have call predecessors, (13), 7 states have return successors, (12), 10 states have call predecessors, (12), 12 states have call successors, (12) [2023-12-21 10:11:53,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 82 transitions. [2023-12-21 10:11:53,768 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 82 transitions. Word has length 17 [2023-12-21 10:11:53,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 10:11:53,769 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 82 transitions. [2023-12-21 10:11:53,769 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-21 10:11:53,769 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 82 transitions. [2023-12-21 10:11:53,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-12-21 10:11:53,771 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 10:11:53,771 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 10:11:53,771 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-21 10:11:53,771 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 10:11:53,772 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 10:11:53,772 INFO L85 PathProgramCache]: Analyzing trace with hash 1786011879, now seen corresponding path program 1 times [2023-12-21 10:11:53,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 10:11:53,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640880650] [2023-12-21 10:11:53,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 10:11:53,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 10:11:53,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:11:53,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-21 10:11:53,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:11:53,862 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 10:11:53,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 10:11:53,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640880650] [2023-12-21 10:11:53,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1640880650] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 10:11:53,863 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 10:11:53,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 10:11:53,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400038012] [2023-12-21 10:11:53,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 10:11:53,864 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 10:11:53,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 10:11:53,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 10:11:53,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 10:11:53,865 INFO L87 Difference]: Start difference. First operand 62 states and 82 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-21 10:11:53,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 10:11:53,885 INFO L93 Difference]: Finished difference Result 94 states and 122 transitions. [2023-12-21 10:11:53,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 10:11:53,886 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 18 [2023-12-21 10:11:53,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 10:11:53,887 INFO L225 Difference]: With dead ends: 94 [2023-12-21 10:11:53,887 INFO L226 Difference]: Without dead ends: 54 [2023-12-21 10:11:53,887 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 10:11:53,888 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 14 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 10:11:53,888 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 104 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 10:11:53,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2023-12-21 10:11:53,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2023-12-21 10:11:53,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 36 states have (on average 1.4166666666666667) internal successors, (51), 42 states have internal predecessors, (51), 10 states have call successors, (10), 7 states have call predecessors, (10), 7 states have return successors, (10), 8 states have call predecessors, (10), 10 states have call successors, (10) [2023-12-21 10:11:53,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 71 transitions. [2023-12-21 10:11:53,894 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 71 transitions. Word has length 18 [2023-12-21 10:11:53,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 10:11:53,894 INFO L495 AbstractCegarLoop]: Abstraction has 54 states and 71 transitions. [2023-12-21 10:11:53,894 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-21 10:11:53,894 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 71 transitions. [2023-12-21 10:11:53,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-12-21 10:11:53,895 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 10:11:53,895 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 10:11:53,895 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-21 10:11:53,895 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 10:11:53,895 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 10:11:53,895 INFO L85 PathProgramCache]: Analyzing trace with hash -2025483956, now seen corresponding path program 1 times [2023-12-21 10:11:53,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 10:11:53,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200552372] [2023-12-21 10:11:53,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 10:11:53,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 10:11:53,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:11:53,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-21 10:11:53,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:11:53,946 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 10:11:53,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 10:11:53,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [200552372] [2023-12-21 10:11:53,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [200552372] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 10:11:53,947 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 10:11:53,947 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 10:11:53,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37072185] [2023-12-21 10:11:53,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 10:11:53,947 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 10:11:53,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 10:11:53,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 10:11:53,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 10:11:53,948 INFO L87 Difference]: Start difference. First operand 54 states and 71 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-21 10:11:53,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 10:11:53,982 INFO L93 Difference]: Finished difference Result 158 states and 210 transitions. [2023-12-21 10:11:53,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 10:11:53,983 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 21 [2023-12-21 10:11:53,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 10:11:53,984 INFO L225 Difference]: With dead ends: 158 [2023-12-21 10:11:53,984 INFO L226 Difference]: Without dead ends: 106 [2023-12-21 10:11:53,984 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 10:11:53,985 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 65 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 10:11:53,986 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 127 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 10:11:53,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2023-12-21 10:11:53,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 103. [2023-12-21 10:11:53,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 68 states have (on average 1.4264705882352942) internal successors, (97), 79 states have internal predecessors, (97), 20 states have call successors, (20), 14 states have call predecessors, (20), 14 states have return successors, (20), 15 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-21 10:11:53,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 137 transitions. [2023-12-21 10:11:53,999 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 137 transitions. Word has length 21 [2023-12-21 10:11:53,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 10:11:53,999 INFO L495 AbstractCegarLoop]: Abstraction has 103 states and 137 transitions. [2023-12-21 10:11:54,000 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-21 10:11:54,000 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 137 transitions. [2023-12-21 10:11:54,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-12-21 10:11:54,001 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 10:11:54,001 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] [2023-12-21 10:11:54,001 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-21 10:11:54,001 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 10:11:54,001 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 10:11:54,001 INFO L85 PathProgramCache]: Analyzing trace with hash -1458578549, now seen corresponding path program 1 times [2023-12-21 10:11:54,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 10:11:54,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134238411] [2023-12-21 10:11:54,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 10:11:54,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 10:11:54,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:11:54,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 10:11:54,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:11:54,073 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 10:11:54,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 10:11:54,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [134238411] [2023-12-21 10:11:54,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [134238411] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 10:11:54,074 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 10:11:54,074 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 10:11:54,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253596514] [2023-12-21 10:11:54,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 10:11:54,074 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 10:11:54,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 10:11:54,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 10:11:54,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 10:11:54,075 INFO L87 Difference]: Start difference. First operand 103 states and 137 transitions. Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-21 10:11:54,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 10:11:54,194 INFO L93 Difference]: Finished difference Result 297 states and 406 transitions. [2023-12-21 10:11:54,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-21 10:11:54,194 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 24 [2023-12-21 10:11:54,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 10:11:54,196 INFO L225 Difference]: With dead ends: 297 [2023-12-21 10:11:54,196 INFO L226 Difference]: Without dead ends: 196 [2023-12-21 10:11:54,197 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-21 10:11:54,198 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 43 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 169 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 10:11:54,198 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 169 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 10:11:54,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2023-12-21 10:11:54,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 194. [2023-12-21 10:11:54,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 127 states have (on average 1.3937007874015748) internal successors, (177), 146 states have internal predecessors, (177), 40 states have call successors, (40), 28 states have call predecessors, (40), 26 states have return successors, (42), 28 states have call predecessors, (42), 40 states have call successors, (42) [2023-12-21 10:11:54,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 259 transitions. [2023-12-21 10:11:54,218 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 259 transitions. Word has length 24 [2023-12-21 10:11:54,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 10:11:54,219 INFO L495 AbstractCegarLoop]: Abstraction has 194 states and 259 transitions. [2023-12-21 10:11:54,219 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-21 10:11:54,219 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 259 transitions. [2023-12-21 10:11:54,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-12-21 10:11:54,222 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 10:11:54,222 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 10:11:54,222 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-21 10:11:54,222 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 10:11:54,223 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 10:11:54,223 INFO L85 PathProgramCache]: Analyzing trace with hash -307887866, now seen corresponding path program 1 times [2023-12-21 10:11:54,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 10:11:54,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427708252] [2023-12-21 10:11:54,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 10:11:54,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 10:11:54,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:11:54,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-21 10:11:54,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:11:54,285 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 10:11:54,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 10:11:54,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427708252] [2023-12-21 10:11:54,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [427708252] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 10:11:54,285 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 10:11:54,285 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 10:11:54,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465575740] [2023-12-21 10:11:54,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 10:11:54,286 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 10:11:54,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 10:11:54,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 10:11:54,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 10:11:54,288 INFO L87 Difference]: Start difference. First operand 194 states and 259 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-21 10:11:54,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 10:11:54,319 INFO L93 Difference]: Finished difference Result 332 states and 448 transitions. [2023-12-21 10:11:54,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 10:11:54,319 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 26 [2023-12-21 10:11:54,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 10:11:54,323 INFO L225 Difference]: With dead ends: 332 [2023-12-21 10:11:54,323 INFO L226 Difference]: Without dead ends: 140 [2023-12-21 10:11:54,327 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 10:11:54,333 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 36 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 10:11:54,334 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 37 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 10:11:54,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2023-12-21 10:11:54,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 138. [2023-12-21 10:11:54,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 99 states have (on average 1.3232323232323233) internal successors, (131), 106 states have internal predecessors, (131), 20 states have call successors, (20), 20 states have call predecessors, (20), 18 states have return successors, (20), 18 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-21 10:11:54,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 171 transitions. [2023-12-21 10:11:54,350 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 171 transitions. Word has length 26 [2023-12-21 10:11:54,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 10:11:54,351 INFO L495 AbstractCegarLoop]: Abstraction has 138 states and 171 transitions. [2023-12-21 10:11:54,351 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-21 10:11:54,351 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 171 transitions. [2023-12-21 10:11:54,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-12-21 10:11:54,352 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 10:11:54,352 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] [2023-12-21 10:11:54,352 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-21 10:11:54,352 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 10:11:54,353 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 10:11:54,353 INFO L85 PathProgramCache]: Analyzing trace with hash -1946014767, now seen corresponding path program 1 times [2023-12-21 10:11:54,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 10:11:54,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140152486] [2023-12-21 10:11:54,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 10:11:54,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 10:11:54,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-21 10:11:54,363 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-21 10:11:54,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-21 10:11:54,405 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-12-21 10:11:54,405 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-12-21 10:11:54,406 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-21 10:11:54,407 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-21 10:11:54,409 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2023-12-21 10:11:54,412 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-21 10:11:54,441 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.12 10:11:54 BoogieIcfgContainer [2023-12-21 10:11:54,442 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-21 10:11:54,442 INFO L158 Benchmark]: Toolchain (without parser) took 1880.09ms. Allocated memory is still 345.0MB. Free memory was 304.0MB in the beginning and 224.6MB in the end (delta: 79.4MB). Peak memory consumption was 80.5MB. Max. memory is 8.0GB. [2023-12-21 10:11:54,442 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 210.8MB. Free memory is still 158.9MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-21 10:11:54,443 INFO L158 Benchmark]: CACSL2BoogieTranslator took 382.40ms. Allocated memory is still 345.0MB. Free memory was 304.0MB in the beginning and 284.6MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. [2023-12-21 10:11:54,443 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.13ms. Allocated memory is still 345.0MB. Free memory was 284.6MB in the beginning and 282.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-21 10:11:54,443 INFO L158 Benchmark]: Boogie Preprocessor took 35.71ms. Allocated memory is still 345.0MB. Free memory was 282.5MB in the beginning and 279.9MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-21 10:11:54,443 INFO L158 Benchmark]: RCFGBuilder took 377.49ms. Allocated memory is still 345.0MB. Free memory was 279.9MB in the beginning and 260.0MB in the end (delta: 19.9MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. [2023-12-21 10:11:54,443 INFO L158 Benchmark]: TraceAbstraction took 1034.46ms. Allocated memory is still 345.0MB. Free memory was 259.5MB in the beginning and 224.6MB in the end (delta: 34.8MB). Peak memory consumption was 36.4MB. Max. memory is 8.0GB. [2023-12-21 10:11:54,447 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 210.8MB. Free memory is still 158.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 382.40ms. Allocated memory is still 345.0MB. Free memory was 304.0MB in the beginning and 284.6MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 44.13ms. Allocated memory is still 345.0MB. Free memory was 284.6MB in the beginning and 282.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 35.71ms. Allocated memory is still 345.0MB. Free memory was 282.5MB in the beginning and 279.9MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 377.49ms. Allocated memory is still 345.0MB. Free memory was 279.9MB in the beginning and 260.0MB in the end (delta: 19.9MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. * TraceAbstraction took 1034.46ms. Allocated memory is still 345.0MB. Free memory was 259.5MB in the beginning and 224.6MB in the end (delta: 34.8MB). Peak memory consumption was 36.4MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [49] - GenericResultAtLocation [Line: 58]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [58] - GenericResultAtLocation [Line: 162]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [162] - GenericResultAtLocation [Line: 528]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [528] - GenericResultAtLocation [Line: 599]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [599] - GenericResultAtLocation [Line: 779]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [779] - GenericResultAtLocation [Line: 814]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [814] - GenericResultAtLocation [Line: 895]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [895] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 54]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L59] int cleanupTimeShifts = 4; [L332] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L606] int pumpRunning = 0; [L607] int systemActive = 1; [L816] int waterLevel = 1; [L817] int methaneLevelCritical = 0; [L140] int retValue_acc ; [L141] int tmp ; [L145] FCALL select_helpers() [L146] FCALL select_features() [L147] CALL, EXPR valid_product() [L806] int retValue_acc ; [L809] retValue_acc = 1 [L810] return (retValue_acc); [L147] RET, EXPR valid_product() [L147] tmp = valid_product() [L149] COND TRUE \read(tmp) [L151] FCALL setup() [L152] CALL runTest() [L131] CALL test() [L532] int splverifierCounter ; [L533] int tmp ; [L534] int tmp___0 ; [L535] int tmp___1 ; [L536] int tmp___2 ; [L539] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L541] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L543] COND TRUE splverifierCounter < 4 [L549] tmp = __VERIFIER_nondet_int() [L551] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L553] CALL waterRise() VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L834] COND TRUE waterLevel < 2 [L835] waterLevel = waterLevel + 1 VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L553] RET waterRise() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L559] tmp___0 = __VERIFIER_nondet_int() [L561] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2] [L569] tmp___2 = __VERIFIER_nondet_int() [L571] COND FALSE !(\read(tmp___2)) [L577] tmp___1 = __VERIFIER_nondet_int() [L579] COND TRUE \read(tmp___1) [L581] CALL stopSystem() [L760] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L767] systemActive = 0 [L581] RET stopSystem() [L588] CALL timeShift() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L614] COND FALSE !(\read(pumpRunning)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L621] COND FALSE !(\read(systemActive)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L629] CALL __utac_acc__Specification3_spec__1() [L897] int tmp ; [L898] int tmp___0 ; [L899] int tmp___1 ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L903] CALL, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L855] int retValue_acc ; [L858] retValue_acc = methaneLevelCritical [L859] return (retValue_acc); [L903] RET, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L903] tmp = isMethaneLevelCritical() [L905] COND FALSE !(\read(tmp)) [L909] CALL, EXPR getWaterLevel() [L887] int retValue_acc ; [L890] retValue_acc = waterLevel [L891] return (retValue_acc); [L909] RET, EXPR getWaterLevel() [L909] tmp___0 = getWaterLevel() [L911] COND TRUE tmp___0 == 2 [L913] CALL, EXPR isPumpRunning() [L712] int retValue_acc ; [L715] retValue_acc = pumpRunning [L716] return (retValue_acc); [L913] RET, EXPR isPumpRunning() [L913] tmp___1 = isPumpRunning() [L915] COND FALSE !(\read(tmp___1)) [L919] CALL __automaton_fail() [L54] reach_error() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 67 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.0s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 162 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 158 mSDsluCounter, 511 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 214 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 113 IncrementalHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 297 mSDtfsCounter, 113 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 26 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=194occurred in iteration=4, InterpolantAutomatonStates: 15, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 7 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 134 NumberOfCodeBlocks, 134 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 101 ConstructedInterpolants, 0 QuantifiedInterpolants, 175 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2023-12-21 10:11:54,463 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...