/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_product13.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-19 23:38:50,781 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-19 23:38:50,843 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 23:38:50,848 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-19 23:38:50,848 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-19 23:38:50,871 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-19 23:38:50,871 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-19 23:38:50,871 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-19 23:38:50,872 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-19 23:38:50,875 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-19 23:38:50,875 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-19 23:38:50,875 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-19 23:38:50,876 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-19 23:38:50,876 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-19 23:38:50,877 INFO L153 SettingsManager]: * Use SBE=true [2023-12-19 23:38:50,877 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-19 23:38:50,877 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-19 23:38:50,877 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-19 23:38:50,877 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-19 23:38:50,878 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-19 23:38:50,878 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-19 23:38:50,878 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-19 23:38:50,879 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-19 23:38:50,879 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-19 23:38:50,879 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-19 23:38:50,879 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-19 23:38:50,879 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-19 23:38:50,879 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-19 23:38:50,880 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-19 23:38:50,880 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-19 23:38:50,880 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-19 23:38:50,881 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-19 23:38:50,881 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-19 23:38:50,881 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-19 23:38:50,881 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-19 23:38:50,881 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-19 23:38:50,881 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-19 23:38:50,881 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-19 23:38:50,881 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-19 23:38:50,881 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-19 23:38:50,881 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-19 23:38:50,882 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-19 23:38:50,882 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-19 23:38:50,882 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-19 23:38:51,068 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-19 23:38:51,089 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-19 23:38:51,091 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-19 23:38:51,092 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-19 23:38:51,092 INFO L274 PluginConnector]: CDTParser initialized [2023-12-19 23:38:51,093 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product13.cil.c [2023-12-19 23:38:52,134 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-19 23:38:52,323 INFO L384 CDTParser]: Found 1 translation units. [2023-12-19 23:38:52,324 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product13.cil.c [2023-12-19 23:38:52,331 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b695c8d8e/abce492d1c274a7fb2f3e3a0e3fb09b6/FLAG744771292 [2023-12-19 23:38:52,345 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b695c8d8e/abce492d1c274a7fb2f3e3a0e3fb09b6 [2023-12-19 23:38:52,347 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-19 23:38:52,347 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-19 23:38:52,348 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-19 23:38:52,348 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-19 23:38:52,358 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-19 23:38:52,359 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 11:38:52" (1/1) ... [2023-12-19 23:38:52,360 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@131631a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:38:52, skipping insertion in model container [2023-12-19 23:38:52,360 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 11:38:52" (1/1) ... [2023-12-19 23:38:52,402 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-19 23:38:52,546 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_product13.cil.c[3343,3356] [2023-12-19 23:38:52,639 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-19 23:38:52,651 INFO L202 MainTranslator]: Completed pre-run [2023-12-19 23:38:52,658 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [49] [2023-12-19 23:38:52,659 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [135] [2023-12-19 23:38:52,659 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [173] [2023-12-19 23:38:52,659 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [182] [2023-12-19 23:38:52,659 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [281] [2023-12-19 23:38:52,659 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [435] [2023-12-19 23:38:52,659 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [469] [2023-12-19 23:38:52,660 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [534] [2023-12-19 23:38:52,678 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_product13.cil.c[3343,3356] [2023-12-19 23:38:52,707 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-19 23:38:52,725 INFO L206 MainTranslator]: Completed translation [2023-12-19 23:38:52,726 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:38:52 WrapperNode [2023-12-19 23:38:52,726 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-19 23:38:52,726 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-19 23:38:52,727 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-19 23:38:52,727 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-19 23:38:52,731 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:38:52" (1/1) ... [2023-12-19 23:38:52,743 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:38:52" (1/1) ... [2023-12-19 23:38:52,759 INFO L138 Inliner]: procedures = 51, calls = 95, calls flagged for inlining = 19, calls inlined = 15, statements flattened = 151 [2023-12-19 23:38:52,759 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-19 23:38:52,759 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-19 23:38:52,760 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-19 23:38:52,760 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-19 23:38:52,767 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:38:52" (1/1) ... [2023-12-19 23:38:52,767 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:38:52" (1/1) ... [2023-12-19 23:38:52,769 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:38:52" (1/1) ... [2023-12-19 23:38:52,779 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 23:38:52,779 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:38:52" (1/1) ... [2023-12-19 23:38:52,779 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:38:52" (1/1) ... [2023-12-19 23:38:52,788 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:38:52" (1/1) ... [2023-12-19 23:38:52,791 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:38:52" (1/1) ... [2023-12-19 23:38:52,792 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:38:52" (1/1) ... [2023-12-19 23:38:52,793 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:38:52" (1/1) ... [2023-12-19 23:38:52,794 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-19 23:38:52,794 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-19 23:38:52,795 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-19 23:38:52,795 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-19 23:38:52,795 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:38:52" (1/1) ... [2023-12-19 23:38:52,805 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-19 23:38:52,815 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 23:38:52,841 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 23:38:52,862 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 23:38:52,868 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-19 23:38:52,868 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-12-19 23:38:52,868 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-12-19 23:38:52,868 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-12-19 23:38:52,869 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-12-19 23:38:52,869 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2023-12-19 23:38:52,869 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2023-12-19 23:38:52,869 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-12-19 23:38:52,869 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-12-19 23:38:52,869 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2023-12-19 23:38:52,869 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2023-12-19 23:38:52,869 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2023-12-19 23:38:52,869 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2023-12-19 23:38:52,869 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-19 23:38:52,869 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-12-19 23:38:52,869 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-12-19 23:38:52,870 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-19 23:38:52,870 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-19 23:38:52,922 INFO L241 CfgBuilder]: Building ICFG [2023-12-19 23:38:52,924 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-19 23:38:53,149 INFO L282 CfgBuilder]: Performing block encoding [2023-12-19 23:38:53,201 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-19 23:38:53,201 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-12-19 23:38:53,201 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 11:38:53 BoogieIcfgContainer [2023-12-19 23:38:53,201 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-19 23:38:53,203 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-19 23:38:53,203 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-19 23:38:53,205 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-19 23:38:53,205 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.12 11:38:52" (1/3) ... [2023-12-19 23:38:53,206 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e4b6d0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 11:38:53, skipping insertion in model container [2023-12-19 23:38:53,206 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:38:52" (2/3) ... [2023-12-19 23:38:53,206 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e4b6d0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 11:38:53, skipping insertion in model container [2023-12-19 23:38:53,206 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 11:38:53" (3/3) ... [2023-12-19 23:38:53,207 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product13.cil.c [2023-12-19 23:38:53,218 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-19 23:38:53,218 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-19 23:38:53,256 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-19 23:38:53,260 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;@3aacf380, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-19 23:38:53,261 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-19 23:38:53,264 INFO L276 IsEmpty]: Start isEmpty. Operand has 61 states, 41 states have (on average 1.5365853658536586) internal successors, (63), 47 states have internal predecessors, (63), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 10 states have call predecessors, (11), 11 states have call successors, (11) [2023-12-19 23:38:53,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-12-19 23:38:53,270 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:38:53,270 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 23:38:53,271 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:38:53,275 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:38:53,276 INFO L85 PathProgramCache]: Analyzing trace with hash -1986984876, now seen corresponding path program 1 times [2023-12-19 23:38:53,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:38:53,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318735061] [2023-12-19 23:38:53,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:38:53,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:38:53,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:53,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-19 23:38:53,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:53,440 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 23:38:53,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:38:53,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1318735061] [2023-12-19 23:38:53,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1318735061] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:38:53,441 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:38:53,441 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-19 23:38:53,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719500251] [2023-12-19 23:38:53,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:38:53,449 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-19 23:38:53,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:38:53,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-19 23:38:53,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-19 23:38:53,473 INFO L87 Difference]: Start difference. First operand has 61 states, 41 states have (on average 1.5365853658536586) internal successors, (63), 47 states have internal predecessors, (63), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 10 states have call predecessors, (11), 11 states have call successors, (11) 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 23:38:53,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:38:53,527 INFO L93 Difference]: Finished difference Result 120 states and 171 transitions. [2023-12-19 23:38:53,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-19 23:38:53,529 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 23:38:53,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:38:53,536 INFO L225 Difference]: With dead ends: 120 [2023-12-19 23:38:53,536 INFO L226 Difference]: Without dead ends: 56 [2023-12-19 23:38:53,539 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 23:38:53,542 INFO L413 NwaCegarLoop]: 68 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 23:38:53,543 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 68 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 23:38:53,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2023-12-19 23:38:53,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2023-12-19 23:38:53,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 38 states have (on average 1.394736842105263) internal successors, (53), 43 states have internal predecessors, (53), 11 states have call successors, (11), 7 states have call predecessors, (11), 6 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) [2023-12-19 23:38:53,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 74 transitions. [2023-12-19 23:38:53,578 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 74 transitions. Word has length 17 [2023-12-19 23:38:53,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:38:53,578 INFO L495 AbstractCegarLoop]: Abstraction has 56 states and 74 transitions. [2023-12-19 23:38:53,579 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 23:38:53,579 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 74 transitions. [2023-12-19 23:38:53,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-12-19 23:38:53,582 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:38:53,582 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 23:38:53,582 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-19 23:38:53,582 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:38:53,583 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:38:53,583 INFO L85 PathProgramCache]: Analyzing trace with hash 361814641, now seen corresponding path program 1 times [2023-12-19 23:38:53,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:38:53,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1087186948] [2023-12-19 23:38:53,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:38:53,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:38:53,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:53,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-19 23:38:53,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:53,676 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 23:38:53,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:38:53,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1087186948] [2023-12-19 23:38:53,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1087186948] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:38:53,676 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:38:53,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-19 23:38:53,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413756307] [2023-12-19 23:38:53,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:38:53,678 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 23:38:53,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:38:53,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 23:38:53,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 23:38:53,679 INFO L87 Difference]: Start difference. First operand 56 states and 74 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 23:38:53,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:38:53,713 INFO L93 Difference]: Finished difference Result 85 states and 111 transitions. [2023-12-19 23:38:53,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 23:38:53,715 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 23:38:53,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:38:53,716 INFO L225 Difference]: With dead ends: 85 [2023-12-19 23:38:53,716 INFO L226 Difference]: Without dead ends: 48 [2023-12-19 23:38:53,716 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 23:38:53,717 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 11 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 23:38:53,717 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 94 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 23:38:53,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2023-12-19 23:38:53,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2023-12-19 23:38:53,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 33 states have (on average 1.4242424242424243) internal successors, (47), 38 states have internal predecessors, (47), 8 states have call successors, (8), 6 states have call predecessors, (8), 6 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) [2023-12-19 23:38:53,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 63 transitions. [2023-12-19 23:38:53,722 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 63 transitions. Word has length 18 [2023-12-19 23:38:53,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:38:53,722 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 63 transitions. [2023-12-19 23:38:53,722 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 23:38:53,722 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 63 transitions. [2023-12-19 23:38:53,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-12-19 23:38:53,723 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:38:53,723 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 23:38:53,723 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-19 23:38:53,723 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:38:53,723 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:38:53,723 INFO L85 PathProgramCache]: Analyzing trace with hash -182335775, now seen corresponding path program 1 times [2023-12-19 23:38:53,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:38:53,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316438136] [2023-12-19 23:38:53,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:38:53,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:38:53,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:53,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-19 23:38:53,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:53,806 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 23:38:53,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:38:53,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316438136] [2023-12-19 23:38:53,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [316438136] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:38:53,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:38:53,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-19 23:38:53,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1692279696] [2023-12-19 23:38:53,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:38:53,807 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-19 23:38:53,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:38:53,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-19 23:38:53,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-19 23:38:53,816 INFO L87 Difference]: Start difference. First operand 48 states and 63 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 23:38:53,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:38:53,899 INFO L93 Difference]: Finished difference Result 94 states and 125 transitions. [2023-12-19 23:38:53,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-19 23:38:53,903 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 23:38:53,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:38:53,904 INFO L225 Difference]: With dead ends: 94 [2023-12-19 23:38:53,904 INFO L226 Difference]: Without dead ends: 48 [2023-12-19 23:38:53,904 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 23:38:53,905 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 62 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 23:38:53,905 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 74 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 23:38:53,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2023-12-19 23:38:53,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2023-12-19 23:38:53,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 33 states have (on average 1.393939393939394) internal successors, (46), 38 states have internal predecessors, (46), 8 states have call successors, (8), 6 states have call predecessors, (8), 6 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) [2023-12-19 23:38:53,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 62 transitions. [2023-12-19 23:38:53,911 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 62 transitions. Word has length 21 [2023-12-19 23:38:53,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:38:53,911 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 62 transitions. [2023-12-19 23:38:53,911 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 23:38:53,911 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 62 transitions. [2023-12-19 23:38:53,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-12-19 23:38:53,912 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:38:53,912 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 23:38:53,912 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-19 23:38:53,912 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:38:53,912 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:38:53,912 INFO L85 PathProgramCache]: Analyzing trace with hash -574800852, now seen corresponding path program 1 times [2023-12-19 23:38:53,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:38:53,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584824742] [2023-12-19 23:38:53,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:38:53,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:38:53,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:53,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-19 23:38:53,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:53,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-19 23:38:53,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:53,986 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 23:38:53,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:38:53,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584824742] [2023-12-19 23:38:53,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [584824742] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:38:53,987 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:38:53,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-19 23:38:53,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119159584] [2023-12-19 23:38:53,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:38:53,988 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-19 23:38:53,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:38:53,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-19 23:38:53,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-19 23:38:53,990 INFO L87 Difference]: Start difference. First operand 48 states and 62 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, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-19 23:38:54,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:38:54,047 INFO L93 Difference]: Finished difference Result 135 states and 181 transitions. [2023-12-19 23:38:54,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-19 23:38:54,048 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, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 26 [2023-12-19 23:38:54,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:38:54,049 INFO L225 Difference]: With dead ends: 135 [2023-12-19 23:38:54,049 INFO L226 Difference]: Without dead ends: 89 [2023-12-19 23:38:54,050 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-19 23:38:54,050 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 34 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 23:38:54,051 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 148 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 23:38:54,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2023-12-19 23:38:54,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 88. [2023-12-19 23:38:54,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 60 states have (on average 1.3666666666666667) internal successors, (82), 68 states have internal predecessors, (82), 16 states have call successors, (16), 12 states have call predecessors, (16), 11 states have return successors, (17), 13 states have call predecessors, (17), 16 states have call successors, (17) [2023-12-19 23:38:54,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 115 transitions. [2023-12-19 23:38:54,061 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 115 transitions. Word has length 26 [2023-12-19 23:38:54,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:38:54,061 INFO L495 AbstractCegarLoop]: Abstraction has 88 states and 115 transitions. [2023-12-19 23:38:54,061 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, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-19 23:38:54,062 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 115 transitions. [2023-12-19 23:38:54,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-12-19 23:38:54,062 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:38:54,062 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 23:38:54,063 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-19 23:38:54,063 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:38:54,063 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:38:54,063 INFO L85 PathProgramCache]: Analyzing trace with hash -305758831, now seen corresponding path program 1 times [2023-12-19 23:38:54,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:38:54,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728104916] [2023-12-19 23:38:54,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:38:54,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:38:54,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:54,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-19 23:38:54,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:54,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 23:38:54,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:54,092 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 23:38:54,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:38:54,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [728104916] [2023-12-19 23:38:54,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [728104916] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:38:54,093 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:38:54,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-19 23:38:54,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873019363] [2023-12-19 23:38:54,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:38:54,093 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 23:38:54,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:38:54,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 23:38:54,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 23:38:54,094 INFO L87 Difference]: Start difference. First operand 88 states and 115 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, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-19 23:38:54,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:38:54,137 INFO L93 Difference]: Finished difference Result 237 states and 317 transitions. [2023-12-19 23:38:54,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 23:38:54,139 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, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 28 [2023-12-19 23:38:54,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:38:54,140 INFO L225 Difference]: With dead ends: 237 [2023-12-19 23:38:54,140 INFO L226 Difference]: Without dead ends: 151 [2023-12-19 23:38:54,141 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 23:38:54,142 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 50 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 23:38:54,142 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 128 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 23:38:54,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2023-12-19 23:38:54,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 149. [2023-12-19 23:38:54,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 104 states have (on average 1.3557692307692308) internal successors, (141), 113 states have internal predecessors, (141), 24 states have call successors, (24), 22 states have call predecessors, (24), 20 states have return successors, (30), 22 states have call predecessors, (30), 24 states have call successors, (30) [2023-12-19 23:38:54,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 195 transitions. [2023-12-19 23:38:54,163 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 195 transitions. Word has length 28 [2023-12-19 23:38:54,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:38:54,163 INFO L495 AbstractCegarLoop]: Abstraction has 149 states and 195 transitions. [2023-12-19 23:38:54,164 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, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-19 23:38:54,164 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 195 transitions. [2023-12-19 23:38:54,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-12-19 23:38:54,165 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:38:54,165 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 23:38:54,165 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-19 23:38:54,165 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:38:54,165 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:38:54,165 INFO L85 PathProgramCache]: Analyzing trace with hash -1839905678, now seen corresponding path program 1 times [2023-12-19 23:38:54,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:38:54,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141244325] [2023-12-19 23:38:54,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:38:54,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:38:54,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-19 23:38:54,188 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-19 23:38:54,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-19 23:38:54,209 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-12-19 23:38:54,209 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-12-19 23:38:54,210 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-19 23:38:54,211 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-19 23:38:54,212 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2023-12-19 23:38:54,214 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-19 23:38:54,245 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.12 11:38:54 BoogieIcfgContainer [2023-12-19 23:38:54,245 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-19 23:38:54,246 INFO L158 Benchmark]: Toolchain (without parser) took 1898.18ms. Allocated memory is still 311.4MB. Free memory was 256.4MB in the beginning and 167.7MB in the end (delta: 88.7MB). Peak memory consumption was 89.0MB. Max. memory is 8.0GB. [2023-12-19 23:38:54,246 INFO L158 Benchmark]: CDTParser took 0.42ms. Allocated memory is still 230.7MB. Free memory is still 179.3MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-19 23:38:54,246 INFO L158 Benchmark]: CACSL2BoogieTranslator took 377.73ms. Allocated memory is still 311.4MB. Free memory was 256.2MB in the beginning and 237.1MB in the end (delta: 19.0MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. [2023-12-19 23:38:54,246 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.57ms. Allocated memory is still 311.4MB. Free memory was 236.9MB in the beginning and 234.9MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-19 23:38:54,246 INFO L158 Benchmark]: Boogie Preprocessor took 34.52ms. Allocated memory is still 311.4MB. Free memory was 234.9MB in the beginning and 232.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-19 23:38:54,247 INFO L158 Benchmark]: RCFGBuilder took 406.85ms. Allocated memory is still 311.4MB. Free memory was 232.8MB in the beginning and 263.6MB in the end (delta: -30.8MB). Peak memory consumption was 11.4MB. Max. memory is 8.0GB. [2023-12-19 23:38:54,247 INFO L158 Benchmark]: TraceAbstraction took 1042.69ms. Allocated memory is still 311.4MB. Free memory was 263.1MB in the beginning and 167.7MB in the end (delta: 95.4MB). Peak memory consumption was 95.4MB. Max. memory is 8.0GB. [2023-12-19 23:38:54,248 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.42ms. Allocated memory is still 230.7MB. Free memory is still 179.3MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 377.73ms. Allocated memory is still 311.4MB. Free memory was 256.2MB in the beginning and 237.1MB in the end (delta: 19.0MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 32.57ms. Allocated memory is still 311.4MB. Free memory was 236.9MB in the beginning and 234.9MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 34.52ms. Allocated memory is still 311.4MB. Free memory was 234.9MB in the beginning and 232.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 406.85ms. Allocated memory is still 311.4MB. Free memory was 232.8MB in the beginning and 263.6MB in the end (delta: -30.8MB). Peak memory consumption was 11.4MB. Max. memory is 8.0GB. * TraceAbstraction took 1042.69ms. Allocated memory is still 311.4MB. Free memory was 263.1MB in the beginning and 167.7MB in the end (delta: 95.4MB). Peak memory consumption was 95.4MB. 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,"Environment.i","") [49] - GenericResultAtLocation [Line: 135]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [135] - GenericResultAtLocation [Line: 173]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [173] - GenericResultAtLocation [Line: 182]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [182] - GenericResultAtLocation [Line: 281]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [281] - GenericResultAtLocation [Line: 435]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [435] - GenericResultAtLocation [Line: 469]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [469] - GenericResultAtLocation [Line: 534]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [534] * 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: 178]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L56] int waterLevel = 1; [L57] int methaneLevelCritical = 0; [L183] int cleanupTimeShifts = 4; [L285] int pumpRunning = 0; [L286] int systemActive = 1; [L704] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L259] int retValue_acc ; [L260] int tmp ; [L264] FCALL select_helpers() [L265] FCALL select_features() [L266] CALL, EXPR valid_product() [L165] int retValue_acc ; [L168] retValue_acc = 1 [L169] return (retValue_acc); [L266] RET, EXPR valid_product() [L266] tmp = valid_product() [L268] COND TRUE \read(tmp) [L270] FCALL setup() [L271] CALL runTest() [L253] CALL test() [L471] int splverifierCounter ; [L472] int tmp ; [L473] int tmp___0 ; [L474] int tmp___1 ; [L475] int tmp___2 ; [L478] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L480] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L482] COND TRUE splverifierCounter < 4 [L488] tmp = __VERIFIER_nondet_int() [L490] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L492] CALL waterRise() VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L74] COND TRUE waterLevel < 2 [L75] waterLevel = waterLevel + 1 VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L492] RET waterRise() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L498] tmp___0 = __VERIFIER_nondet_int() [L500] 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] [L508] tmp___2 = __VERIFIER_nondet_int() [L510] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=1, waterLevel=2] [L523] CALL timeShift() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L293] COND FALSE !(\read(pumpRunning)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L300] COND TRUE \read(systemActive) [L302] CALL processEnvironment() [L322] int tmp ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L325] COND FALSE !(\read(pumpRunning)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L340] FCALL processEnvironment__wrappee__methaneQuery() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L302] RET processEnvironment() [L308] CALL __utac_acc__Specification3_spec__1() [L437] int tmp ; [L438] int tmp___0 ; [L439] int tmp___1 ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L443] CALL, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L95] int retValue_acc ; [L98] retValue_acc = methaneLevelCritical [L99] return (retValue_acc); [L443] RET, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L443] tmp = isMethaneLevelCritical() [L445] COND FALSE !(\read(tmp)) [L449] CALL, EXPR getWaterLevel() [L127] int retValue_acc ; [L130] retValue_acc = waterLevel [L131] return (retValue_acc); [L449] RET, EXPR getWaterLevel() [L449] tmp___0 = getWaterLevel() [L451] COND TRUE tmp___0 == 2 [L453] CALL, EXPR isPumpRunning() [L391] int retValue_acc ; [L394] retValue_acc = pumpRunning [L395] return (retValue_acc); [L453] RET, EXPR isPumpRunning() [L453] tmp___1 = isPumpRunning() [L455] COND FALSE !(\read(tmp___1)) [L459] CALL __automaton_fail() [L178] reach_error() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 61 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, 160 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 157 mSDsluCounter, 512 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 201 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 124 IncrementalHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 311 mSDtfsCounter, 124 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 31 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=149occurred in iteration=5, 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, 3 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 140 NumberOfCodeBlocks, 140 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 105 ConstructedInterpolants, 0 QuantifiedInterpolants, 191 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 23:38:54,272 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...