/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product15.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-19 23:38:52,150 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-19 23:38:52,266 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-19 23:38:52,270 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-19 23:38:52,270 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-19 23:38:52,301 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-19 23:38:52,302 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-19 23:38:52,302 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-19 23:38:52,303 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-19 23:38:52,305 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-19 23:38:52,306 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-19 23:38:52,306 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-19 23:38:52,306 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-19 23:38:52,307 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-19 23:38:52,307 INFO L153 SettingsManager]: * Use SBE=true [2023-12-19 23:38:52,308 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-19 23:38:52,308 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-19 23:38:52,308 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-19 23:38:52,308 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-19 23:38:52,308 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-19 23:38:52,309 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-19 23:38:52,309 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-19 23:38:52,309 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-19 23:38:52,309 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-19 23:38:52,310 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-19 23:38:52,310 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-19 23:38:52,310 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-19 23:38:52,310 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-19 23:38:52,311 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-19 23:38:52,311 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-19 23:38:52,311 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-19 23:38:52,312 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-19 23:38:52,312 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-19 23:38:52,312 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-19 23:38:52,312 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-19 23:38:52,312 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-19 23:38:52,312 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-19 23:38:52,313 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-19 23:38:52,313 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-19 23:38:52,313 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-19 23:38:52,313 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-19 23:38:52,314 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-19 23:38:52,314 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-19 23:38:52,314 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-19 23:38:52,513 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-19 23:38:52,532 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-19 23:38:52,535 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-19 23:38:52,536 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-19 23:38:52,543 INFO L274 PluginConnector]: CDTParser initialized [2023-12-19 23:38:52,544 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product15.cil.c [2023-12-19 23:38:53,625 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-19 23:38:53,747 INFO L384 CDTParser]: Found 1 translation units. [2023-12-19 23:38:53,747 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product15.cil.c [2023-12-19 23:38:53,755 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a0332dc19/51e937c3ca4b470ba65960e1fa751992/FLAGba3d942a0 [2023-12-19 23:38:54,159 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a0332dc19/51e937c3ca4b470ba65960e1fa751992 [2023-12-19 23:38:54,161 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-19 23:38:54,162 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-19 23:38:54,163 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-19 23:38:54,163 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-19 23:38:54,166 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-19 23:38:54,167 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 11:38:54" (1/1) ... [2023-12-19 23:38:54,168 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3868c12e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:38:54, skipping insertion in model container [2023-12-19 23:38:54,168 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 11:38:54" (1/1) ... [2023-12-19 23:38:54,194 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-19 23:38:54,412 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_product15.cil.c[17176,17189] [2023-12-19 23:38:54,420 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-19 23:38:54,431 INFO L202 MainTranslator]: Completed pre-run [2023-12-19 23:38:54,437 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [49] [2023-12-19 23:38:54,438 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [224] [2023-12-19 23:38:54,438 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [294] [2023-12-19 23:38:54,438 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [660] [2023-12-19 23:38:54,438 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [741] [2023-12-19 23:38:54,438 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [840] [2023-12-19 23:38:54,439 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [875] [2023-12-19 23:38:54,439 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [884] [2023-12-19 23:38:54,485 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_product15.cil.c[17176,17189] [2023-12-19 23:38:54,487 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-19 23:38:54,498 INFO L206 MainTranslator]: Completed translation [2023-12-19 23:38:54,499 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:38:54 WrapperNode [2023-12-19 23:38:54,499 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-19 23:38:54,500 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-19 23:38:54,504 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-19 23:38:54,504 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-19 23:38:54,508 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:38:54" (1/1) ... [2023-12-19 23:38:54,521 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:38:54" (1/1) ... [2023-12-19 23:38:54,553 INFO L138 Inliner]: procedures = 52, calls = 97, calls flagged for inlining = 19, calls inlined = 15, statements flattened = 154 [2023-12-19 23:38:54,554 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-19 23:38:54,554 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-19 23:38:54,554 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-19 23:38:54,555 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-19 23:38:54,562 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:38:54" (1/1) ... [2023-12-19 23:38:54,562 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:38:54" (1/1) ... [2023-12-19 23:38:54,564 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:38:54" (1/1) ... [2023-12-19 23:38:54,574 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-19 23:38:54,574 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:38:54" (1/1) ... [2023-12-19 23:38:54,575 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:38:54" (1/1) ... [2023-12-19 23:38:54,578 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:38:54" (1/1) ... [2023-12-19 23:38:54,581 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:38:54" (1/1) ... [2023-12-19 23:38:54,582 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:38:54" (1/1) ... [2023-12-19 23:38:54,583 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:38:54" (1/1) ... [2023-12-19 23:38:54,584 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-19 23:38:54,585 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-19 23:38:54,585 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-19 23:38:54,585 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-19 23:38:54,585 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:38:54" (1/1) ... [2023-12-19 23:38:54,602 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-19 23:38:54,612 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 23:38:54,646 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-19 23:38:54,664 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-19 23:38:54,671 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-19 23:38:54,671 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-12-19 23:38:54,671 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-12-19 23:38:54,671 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2023-12-19 23:38:54,671 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2023-12-19 23:38:54,671 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-12-19 23:38:54,672 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-12-19 23:38:54,672 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-12-19 23:38:54,672 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-12-19 23:38:54,672 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2023-12-19 23:38:54,672 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2023-12-19 23:38:54,672 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2023-12-19 23:38:54,672 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2023-12-19 23:38:54,672 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2023-12-19 23:38:54,672 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2023-12-19 23:38:54,672 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-19 23:38:54,672 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-12-19 23:38:54,673 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-12-19 23:38:54,673 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-19 23:38:54,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-19 23:38:54,746 INFO L241 CfgBuilder]: Building ICFG [2023-12-19 23:38:54,749 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-19 23:38:54,951 INFO L282 CfgBuilder]: Performing block encoding [2023-12-19 23:38:55,004 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-19 23:38:55,004 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-12-19 23:38:55,005 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 11:38:55 BoogieIcfgContainer [2023-12-19 23:38:55,005 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-19 23:38:55,008 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-19 23:38:55,008 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-19 23:38:55,023 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-19 23:38:55,023 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.12 11:38:54" (1/3) ... [2023-12-19 23:38:55,023 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@234ae7a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 11:38:55, skipping insertion in model container [2023-12-19 23:38:55,024 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:38:54" (2/3) ... [2023-12-19 23:38:55,024 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@234ae7a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 11:38:55, skipping insertion in model container [2023-12-19 23:38:55,024 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 11:38:55" (3/3) ... [2023-12-19 23:38:55,025 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product15.cil.c [2023-12-19 23:38:55,041 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-19 23:38:55,041 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-19 23:38:55,083 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-19 23:38:55,088 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;@7a6b0453, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-19 23:38:55,088 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-19 23:38:55,091 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) [2023-12-19 23:38:55,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-12-19 23:38:55,100 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:38:55,100 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 23:38:55,100 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:38:55,105 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:38:55,105 INFO L85 PathProgramCache]: Analyzing trace with hash -1973998854, now seen corresponding path program 1 times [2023-12-19 23:38:55,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:38:55,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595900608] [2023-12-19 23:38:55,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:38:55,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:38:55,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:55,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-19 23:38:55,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:55,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 23:38:55,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:38:55,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [595900608] [2023-12-19 23:38:55,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [595900608] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:38:55,249 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:38:55,250 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-19 23:38:55,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452552602] [2023-12-19 23:38:55,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:38:55,254 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-19 23:38:55,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:38:55,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-19 23:38:55,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-19 23:38:55,272 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) [2023-12-19 23:38:55,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:38:55,322 INFO L93 Difference]: Finished difference Result 132 states and 187 transitions. [2023-12-19 23:38:55,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-19 23:38:55,324 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 [2023-12-19 23:38:55,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:38:55,329 INFO L225 Difference]: With dead ends: 132 [2023-12-19 23:38:55,330 INFO L226 Difference]: Without dead ends: 62 [2023-12-19 23:38:55,332 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-19 23:38:55,334 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 23:38:55,335 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 75 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 23:38:55,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2023-12-19 23:38:55,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2023-12-19 23:38:55,361 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) [2023-12-19 23:38:55,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 82 transitions. [2023-12-19 23:38:55,364 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 82 transitions. Word has length 17 [2023-12-19 23:38:55,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:38:55,364 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 82 transitions. [2023-12-19 23:38:55,364 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) [2023-12-19 23:38:55,365 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 82 transitions. [2023-12-19 23:38:55,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-12-19 23:38:55,366 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:38:55,366 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 23:38:55,366 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-19 23:38:55,366 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:38:55,367 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:38:55,367 INFO L85 PathProgramCache]: Analyzing trace with hash 1409400026, now seen corresponding path program 1 times [2023-12-19 23:38:55,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:38:55,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43133752] [2023-12-19 23:38:55,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:38:55,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:38:55,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:55,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-19 23:38:55,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:55,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 23:38:55,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:38:55,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43133752] [2023-12-19 23:38:55,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [43133752] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:38:55,466 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:38:55,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-19 23:38:55,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171519990] [2023-12-19 23:38:55,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:38:55,467 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 23:38:55,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:38:55,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 23:38:55,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 23:38:55,468 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) [2023-12-19 23:38:55,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:38:55,487 INFO L93 Difference]: Finished difference Result 94 states and 122 transitions. [2023-12-19 23:38:55,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 23:38:55,487 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 [2023-12-19 23:38:55,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:38:55,488 INFO L225 Difference]: With dead ends: 94 [2023-12-19 23:38:55,488 INFO L226 Difference]: Without dead ends: 54 [2023-12-19 23:38:55,489 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 23:38:55,489 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 14 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 23:38:55,490 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 105 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 23:38:55,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2023-12-19 23:38:55,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2023-12-19 23:38:55,495 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) [2023-12-19 23:38:55,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 71 transitions. [2023-12-19 23:38:55,495 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 71 transitions. Word has length 18 [2023-12-19 23:38:55,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:38:55,496 INFO L495 AbstractCegarLoop]: Abstraction has 54 states and 71 transitions. [2023-12-19 23:38:55,496 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) [2023-12-19 23:38:55,496 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 71 transitions. [2023-12-19 23:38:55,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-12-19 23:38:55,496 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:38:55,497 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] [2023-12-19 23:38:55,497 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-19 23:38:55,497 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:38:55,497 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:38:55,497 INFO L85 PathProgramCache]: Analyzing trace with hash 246620679, now seen corresponding path program 1 times [2023-12-19 23:38:55,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:38:55,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416839029] [2023-12-19 23:38:55,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:38:55,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:38:55,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:55,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-19 23:38:55,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:55,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 23:38:55,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:38:55,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416839029] [2023-12-19 23:38:55,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [416839029] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:38:55,574 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:38:55,574 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-19 23:38:55,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774769413] [2023-12-19 23:38:55,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:38:55,575 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-19 23:38:55,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:38:55,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-19 23:38:55,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-19 23:38:55,575 INFO L87 Difference]: Start difference. First operand 54 states and 71 transitions. Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 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) [2023-12-19 23:38:55,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:38:55,686 INFO L93 Difference]: Finished difference Result 158 states and 216 transitions. [2023-12-19 23:38:55,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-19 23:38:55,687 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 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 [2023-12-19 23:38:55,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:38:55,688 INFO L225 Difference]: With dead ends: 158 [2023-12-19 23:38:55,688 INFO L226 Difference]: Without dead ends: 106 [2023-12-19 23:38:55,689 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-19 23:38:55,690 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 84 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 23:38:55,690 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 172 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 23:38:55,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2023-12-19 23:38:55,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 89. [2023-12-19 23:38:55,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 61 states have (on average 1.4426229508196722) internal successors, (88), 70 states have internal predecessors, (88), 15 states have call successors, (15), 12 states have call predecessors, (15), 12 states have return successors, (16), 12 states have call predecessors, (16), 15 states have call successors, (16) [2023-12-19 23:38:55,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 119 transitions. [2023-12-19 23:38:55,710 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 119 transitions. Word has length 21 [2023-12-19 23:38:55,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:38:55,710 INFO L495 AbstractCegarLoop]: Abstraction has 89 states and 119 transitions. [2023-12-19 23:38:55,710 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-19 23:38:55,710 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 119 transitions. [2023-12-19 23:38:55,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-12-19 23:38:55,715 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:38:55,715 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] [2023-12-19 23:38:55,715 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-19 23:38:55,716 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:38:55,716 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:38:55,716 INFO L85 PathProgramCache]: Analyzing trace with hash 1182582526, now seen corresponding path program 1 times [2023-12-19 23:38:55,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:38:55,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008256235] [2023-12-19 23:38:55,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:38:55,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:38:55,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:55,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-19 23:38:55,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:55,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 23:38:55,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:38:55,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008256235] [2023-12-19 23:38:55,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1008256235] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:38:55,854 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:38:55,854 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-19 23:38:55,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383691495] [2023-12-19 23:38:55,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:38:55,854 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-19 23:38:55,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:38:55,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-19 23:38:55,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-19 23:38:55,855 INFO L87 Difference]: Start difference. First operand 89 states and 119 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) [2023-12-19 23:38:55,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:38:55,916 INFO L93 Difference]: Finished difference Result 255 states and 354 transitions. [2023-12-19 23:38:55,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-19 23:38:55,917 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 [2023-12-19 23:38:55,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:38:55,918 INFO L225 Difference]: With dead ends: 255 [2023-12-19 23:38:55,918 INFO L226 Difference]: Without dead ends: 168 [2023-12-19 23:38:55,919 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-19 23:38:55,921 INFO L413 NwaCegarLoop]: 58 mSDtfsCounter, 43 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 23:38:55,921 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 172 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 23:38:55,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2023-12-19 23:38:55,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 166. [2023-12-19 23:38:55,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 113 states have (on average 1.407079646017699) internal successors, (159), 128 states have internal predecessors, (159), 30 states have call successors, (30), 24 states have call predecessors, (30), 22 states have return successors, (35), 22 states have call predecessors, (35), 30 states have call successors, (35) [2023-12-19 23:38:55,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 224 transitions. [2023-12-19 23:38:55,947 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 224 transitions. Word has length 24 [2023-12-19 23:38:55,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:38:55,947 INFO L495 AbstractCegarLoop]: Abstraction has 166 states and 224 transitions. [2023-12-19 23:38:55,947 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) [2023-12-19 23:38:55,948 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 224 transitions. [2023-12-19 23:38:55,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-12-19 23:38:55,949 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:38:55,949 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] [2023-12-19 23:38:55,949 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-19 23:38:55,949 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:38:55,949 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:38:55,949 INFO L85 PathProgramCache]: Analyzing trace with hash -538556359, now seen corresponding path program 1 times [2023-12-19 23:38:55,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:38:55,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292165159] [2023-12-19 23:38:55,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:38:55,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:38:55,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:55,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-19 23:38:55,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:55,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 23:38:55,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:38:55,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1292165159] [2023-12-19 23:38:55,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1292165159] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:38:55,994 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:38:55,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-19 23:38:55,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315377269] [2023-12-19 23:38:55,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:38:55,995 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 23:38:55,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:38:55,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 23:38:55,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 23:38:55,995 INFO L87 Difference]: Start difference. First operand 166 states and 224 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) [2023-12-19 23:38:56,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:38:56,018 INFO L93 Difference]: Finished difference Result 294 states and 405 transitions. [2023-12-19 23:38:56,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 23:38:56,018 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 [2023-12-19 23:38:56,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:38:56,019 INFO L225 Difference]: With dead ends: 294 [2023-12-19 23:38:56,020 INFO L226 Difference]: Without dead ends: 130 [2023-12-19 23:38:56,021 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 23:38:56,022 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 36 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 23:38:56,022 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 38 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 23:38:56,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2023-12-19 23:38:56,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 128. [2023-12-19 23:38:56,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 93 states have (on average 1.3440860215053763) internal successors, (125), 100 states have internal predecessors, (125), 18 states have call successors, (18), 18 states have call predecessors, (18), 16 states have return successors, (20), 16 states have call predecessors, (20), 18 states have call successors, (20) [2023-12-19 23:38:56,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 163 transitions. [2023-12-19 23:38:56,035 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 163 transitions. Word has length 26 [2023-12-19 23:38:56,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:38:56,036 INFO L495 AbstractCegarLoop]: Abstraction has 128 states and 163 transitions. [2023-12-19 23:38:56,036 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) [2023-12-19 23:38:56,036 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 163 transitions. [2023-12-19 23:38:56,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-12-19 23:38:56,037 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:38:56,037 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] [2023-12-19 23:38:56,037 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-19 23:38:56,037 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:38:56,037 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:38:56,037 INFO L85 PathProgramCache]: Analyzing trace with hash -486805948, now seen corresponding path program 1 times [2023-12-19 23:38:56,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:38:56,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1626271067] [2023-12-19 23:38:56,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:38:56,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:38:56,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-19 23:38:56,055 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-19 23:38:56,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-19 23:38:56,082 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-12-19 23:38:56,082 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-12-19 23:38:56,083 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-19 23:38:56,084 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-19 23:38:56,086 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2023-12-19 23:38:56,089 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-19 23:38:56,125 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.12 11:38:56 BoogieIcfgContainer [2023-12-19 23:38:56,125 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-19 23:38:56,126 INFO L158 Benchmark]: Toolchain (without parser) took 1963.91ms. Allocated memory is still 220.2MB. Free memory was 168.4MB in the beginning and 98.2MB in the end (delta: 70.2MB). Peak memory consumption was 70.2MB. Max. memory is 8.0GB. [2023-12-19 23:38:56,126 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 183.5MB. Free memory is still 132.6MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-19 23:38:56,126 INFO L158 Benchmark]: CACSL2BoogieTranslator took 336.22ms. Allocated memory is still 220.2MB. Free memory was 168.4MB in the beginning and 149.0MB in the end (delta: 19.4MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. [2023-12-19 23:38:56,127 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.26ms. Allocated memory is still 220.2MB. Free memory was 149.0MB in the beginning and 146.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-19 23:38:56,127 INFO L158 Benchmark]: Boogie Preprocessor took 29.88ms. Allocated memory is still 220.2MB. Free memory was 146.9MB in the beginning and 144.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-19 23:38:56,127 INFO L158 Benchmark]: RCFGBuilder took 420.07ms. Allocated memory is still 220.2MB. Free memory was 144.8MB in the beginning and 124.3MB in the end (delta: 20.4MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. [2023-12-19 23:38:56,127 INFO L158 Benchmark]: TraceAbstraction took 1117.26ms. Allocated memory is still 220.2MB. Free memory was 123.8MB in the beginning and 98.2MB in the end (delta: 25.7MB). Peak memory consumption was 25.1MB. Max. memory is 8.0GB. [2023-12-19 23:38:56,128 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 183.5MB. Free memory is still 132.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 336.22ms. Allocated memory is still 220.2MB. Free memory was 168.4MB in the beginning and 149.0MB in the end (delta: 19.4MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 54.26ms. Allocated memory is still 220.2MB. Free memory was 149.0MB in the beginning and 146.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 29.88ms. Allocated memory is still 220.2MB. Free memory was 146.9MB in the beginning and 144.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 420.07ms. Allocated memory is still 220.2MB. Free memory was 144.8MB in the beginning and 124.3MB in the end (delta: 20.4MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. * TraceAbstraction took 1117.26ms. Allocated memory is still 220.2MB. Free memory was 123.8MB in the beginning and 98.2MB in the end (delta: 25.7MB). Peak memory consumption was 25.1MB. 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,"MinePump.i","") [49] - GenericResultAtLocation [Line: 224]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [224] - GenericResultAtLocation [Line: 294]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [294] - GenericResultAtLocation [Line: 660]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [660] - GenericResultAtLocation [Line: 741]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [741] - GenericResultAtLocation [Line: 840]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [840] - GenericResultAtLocation [Line: 875]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [875] - GenericResultAtLocation [Line: 884]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [884] * 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: 880]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L59] int pumpRunning = 0; [L60] int systemActive = 1; [L464] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L662] int waterLevel = 1; [L663] int methaneLevelCritical = 0; [L742] int cleanupTimeShifts = 4; [L818] int retValue_acc ; [L819] int tmp ; [L823] FCALL select_helpers() [L824] FCALL select_features() [L825] CALL, EXPR valid_product() [L911] int retValue_acc ; [L914] retValue_acc = 1 [L915] return (retValue_acc); [L825] RET, EXPR valid_product() [L825] tmp = valid_product() [L827] COND TRUE \read(tmp) [L829] FCALL setup() [L830] CALL runTest() [L809] CALL test() [L229] int splverifierCounter ; [L230] int tmp ; [L231] int tmp___0 ; [L232] int tmp___1 ; [L233] int tmp___2 ; [L236] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L238] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L240] COND TRUE splverifierCounter < 4 [L246] tmp = __VERIFIER_nondet_int() [L248] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L250] CALL waterRise() VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L680] COND TRUE waterLevel < 2 [L681] waterLevel = waterLevel + 1 VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L250] RET waterRise() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L256] tmp___0 = __VERIFIER_nondet_int() [L258] 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] [L266] tmp___2 = __VERIFIER_nondet_int() [L268] COND FALSE !(\read(tmp___2)) [L272] tmp___1 = __VERIFIER_nondet_int() [L274] COND TRUE \read(tmp___1) [L276] CALL stopSystem() [L213] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L220] systemActive = 0 [L276] RET stopSystem() [L283] CALL timeShift() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L67] COND FALSE !(\read(pumpRunning)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L74] COND FALSE !(\read(systemActive)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L82] CALL __utac_acc__Specification3_spec__1() [L843] int tmp ; [L844] int tmp___0 ; [L845] int tmp___1 ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L849] CALL, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L701] int retValue_acc ; [L704] retValue_acc = methaneLevelCritical [L705] return (retValue_acc); [L849] RET, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L849] tmp = isMethaneLevelCritical() [L851] COND FALSE !(\read(tmp)) [L855] CALL, EXPR getWaterLevel() [L733] int retValue_acc ; [L736] retValue_acc = waterLevel [L737] return (retValue_acc); [L855] RET, EXPR getWaterLevel() [L855] tmp___0 = getWaterLevel() [L857] COND TRUE tmp___0 == 2 [L859] CALL, EXPR isPumpRunning() [L165] int retValue_acc ; [L168] retValue_acc = pumpRunning [L169] return (retValue_acc); [L859] RET, EXPR isPumpRunning() [L859] tmp___1 = isPumpRunning() [L861] COND FALSE !(\read(tmp___1)) [L865] CALL __automaton_fail() [L880] 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, 181 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 177 mSDsluCounter, 562 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 264 mSDsCounter, 13 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 143 IncrementalHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 13 mSolverCounterUnsat, 298 mSDtfsCounter, 143 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=166occurred in iteration=4, InterpolantAutomatonStates: 16, 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, 21 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 134 NumberOfCodeBlocks, 134 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 101 ConstructedInterpolants, 0 QuantifiedInterpolants, 201 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! [2023-12-19 23:38:56,147 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request...