/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-64bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.cal161.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 19:05:46,112 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 19:05:46,149 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2023-12-16 19:05:46,152 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 19:05:46,152 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 19:05:46,166 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 19:05:46,166 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 19:05:46,167 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 19:05:46,167 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 19:05:46,167 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 19:05:46,168 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 19:05:46,168 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 19:05:46,168 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 19:05:46,169 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 19:05:46,169 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 19:05:46,169 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 19:05:46,169 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 19:05:46,170 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-16 19:05:46,170 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 19:05:46,170 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 19:05:46,170 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 19:05:46,171 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 19:05:46,171 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 19:05:46,171 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 19:05:46,172 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 19:05:46,172 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 19:05:46,172 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 19:05:46,173 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 19:05:46,173 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 19:05:46,173 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 19:05:46,173 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 19:05:46,174 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 19:05:46,174 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 19:05:46,174 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-16 19:05:46,174 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-16 19:05:46,175 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 19:05:46,175 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 19:05:46,175 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 19:05:46,175 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 19:05:46,175 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 19:05:46,176 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-16 19:05:46,345 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 19:05:46,358 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 19:05:46,360 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 19:05:46,362 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 19:05:46,362 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 19:05:46,363 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.cal161.c [2023-12-16 19:05:47,460 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 19:05:47,899 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 19:05:47,900 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.cal161.c [2023-12-16 19:05:47,953 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f5ff91c8/b06d154c3e0a415db02dade7afd42766/FLAG7fac71307 [2023-12-16 19:05:47,967 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f5ff91c8/b06d154c3e0a415db02dade7afd42766 [2023-12-16 19:05:47,971 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 19:05:47,972 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 19:05:47,973 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 19:05:47,973 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 19:05:47,976 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 19:05:47,977 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 07:05:47" (1/1) ... [2023-12-16 19:05:47,977 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6496b509 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:05:47, skipping insertion in model container [2023-12-16 19:05:47,978 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 07:05:47" (1/1) ... [2023-12-16 19:05:48,136 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 19:05:48,377 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.cal161.c[1246,1259] [2023-12-16 19:05:49,571 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 19:05:49,581 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 19:05:49,589 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.cal161.c[1246,1259] [2023-12-16 19:05:50,397 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 19:05:50,407 INFO L206 MainTranslator]: Completed translation [2023-12-16 19:05:50,408 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:05:50 WrapperNode [2023-12-16 19:05:50,408 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 19:05:50,408 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 19:05:50,409 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 19:05:50,409 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 19:05:50,429 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:05:50" (1/1) ... [2023-12-16 19:05:50,822 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:05:50" (1/1) ... [2023-12-16 19:05:55,069 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 65928 [2023-12-16 19:05:55,069 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 19:05:55,070 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 19:05:55,070 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 19:05:55,070 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 19:05:55,078 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:05:50" (1/1) ... [2023-12-16 19:05:55,078 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:05:50" (1/1) ... [2023-12-16 19:05:56,523 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:05:50" (1/1) ... [2023-12-16 19:05:57,165 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]. [2023-12-16 19:05:57,165 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:05:50" (1/1) ... [2023-12-16 19:05:57,165 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:05:50" (1/1) ... [2023-12-16 19:05:58,860 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:05:50" (1/1) ... [2023-12-16 19:05:59,311 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:05:50" (1/1) ... [2023-12-16 19:05:59,551 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:05:50" (1/1) ... [2023-12-16 19:05:59,712 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:05:50" (1/1) ... [2023-12-16 19:06:01,200 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 19:06:01,201 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 19:06:01,201 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 19:06:01,201 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 19:06:01,203 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:05:50" (1/1) ... [2023-12-16 19:06:01,219 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 19:06:01,243 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 19:06:01,281 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) [2023-12-16 19:06:01,304 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 [2023-12-16 19:06:01,310 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 19:06:01,311 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-16 19:06:01,311 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 19:06:01,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 19:06:03,419 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 19:06:03,421 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 19:06:27,877 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 19:06:28,828 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 19:06:28,828 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 19:06:28,829 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 07:06:28 BoogieIcfgContainer [2023-12-16 19:06:28,830 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 19:06:28,832 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 19:06:28,832 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 19:06:28,835 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 19:06:28,835 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 07:05:47" (1/3) ... [2023-12-16 19:06:28,835 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e67cf0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 07:06:28, skipping insertion in model container [2023-12-16 19:06:28,835 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:05:50" (2/3) ... [2023-12-16 19:06:28,837 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e67cf0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 07:06:28, skipping insertion in model container [2023-12-16 19:06:28,837 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 07:06:28" (3/3) ... [2023-12-16 19:06:28,838 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.cal161.c [2023-12-16 19:06:28,850 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 19:06:28,851 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 19:06:29,005 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 19:06:29,010 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;@6eca08fc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 19:06:29,010 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 19:06:29,044 INFO L276 IsEmpty]: Start isEmpty. Operand has 14441 states, 14439 states have (on average 1.6691599141214766) internal successors, (24101), 14440 states have internal predecessors, (24101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 19:06:29,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 323 [2023-12-16 19:06:29,070 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 19:06:29,071 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 19:06:29,071 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 19:06:29,076 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 19:06:29,077 INFO L85 PathProgramCache]: Analyzing trace with hash -1509833001, now seen corresponding path program 1 times [2023-12-16 19:06:29,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 19:06:29,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845376271] [2023-12-16 19:06:29,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 19:06:29,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 19:06:29,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 19:06:30,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 19:06:30,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 19:06:30,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845376271] [2023-12-16 19:06:30,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [845376271] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 19:06:30,943 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 19:06:30,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 19:06:30,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635363087] [2023-12-16 19:06:30,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 19:06:30,950 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 19:06:30,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 19:06:30,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 19:06:30,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 19:06:31,011 INFO L87 Difference]: Start difference. First operand has 14441 states, 14439 states have (on average 1.6691599141214766) internal successors, (24101), 14440 states have internal predecessors, (24101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 80.5) internal successors, (322), 4 states have internal predecessors, (322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 19:06:31,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 19:06:31,571 INFO L93 Difference]: Finished difference Result 28698 states and 47898 transitions. [2023-12-16 19:06:31,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 19:06:31,573 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 80.5) internal successors, (322), 4 states have internal predecessors, (322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 322 [2023-12-16 19:06:31,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 19:06:31,636 INFO L225 Difference]: With dead ends: 28698 [2023-12-16 19:06:31,636 INFO L226 Difference]: Without dead ends: 14441 [2023-12-16 19:06:31,662 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 19:06:31,665 INFO L413 NwaCegarLoop]: 24025 mSDtfsCounter, 1 mSDsluCounter, 48045 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 72070 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 19:06:31,666 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 72070 Invalid, 13 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 19:06:31,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14441 states. [2023-12-16 19:06:31,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14441 to 14441. [2023-12-16 19:06:31,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14441 states, 14440 states have (on average 1.6641274238227146) internal successors, (24030), 14440 states have internal predecessors, (24030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 19:06:32,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14441 states to 14441 states and 24030 transitions. [2023-12-16 19:06:32,077 INFO L78 Accepts]: Start accepts. Automaton has 14441 states and 24030 transitions. Word has length 322 [2023-12-16 19:06:32,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 19:06:32,079 INFO L495 AbstractCegarLoop]: Abstraction has 14441 states and 24030 transitions. [2023-12-16 19:06:32,080 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 80.5) internal successors, (322), 4 states have internal predecessors, (322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 19:06:32,080 INFO L276 IsEmpty]: Start isEmpty. Operand 14441 states and 24030 transitions. [2023-12-16 19:06:32,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 324 [2023-12-16 19:06:32,082 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 19:06:32,082 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 19:06:32,083 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-16 19:06:32,083 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 19:06:32,084 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 19:06:32,084 INFO L85 PathProgramCache]: Analyzing trace with hash 441544141, now seen corresponding path program 1 times [2023-12-16 19:06:32,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 19:06:32,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417074980] [2023-12-16 19:06:32,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 19:06:32,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 19:06:32,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 19:06:32,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 19:06:32,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 19:06:32,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417074980] [2023-12-16 19:06:32,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [417074980] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 19:06:32,951 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 19:06:32,951 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 19:06:32,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461264618] [2023-12-16 19:06:32,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 19:06:32,954 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 19:06:32,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 19:06:32,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 19:06:32,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 19:06:32,963 INFO L87 Difference]: Start difference. First operand 14441 states and 24030 transitions. Second operand has 4 states, 4 states have (on average 80.75) internal successors, (323), 4 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 19:06:33,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 19:06:33,314 INFO L93 Difference]: Finished difference Result 28701 states and 47758 transitions. [2023-12-16 19:06:33,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 19:06:33,315 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 80.75) internal successors, (323), 4 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 323 [2023-12-16 19:06:33,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 19:06:33,362 INFO L225 Difference]: With dead ends: 28701 [2023-12-16 19:06:33,362 INFO L226 Difference]: Without dead ends: 14444 [2023-12-16 19:06:33,378 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 19:06:33,379 INFO L413 NwaCegarLoop]: 24025 mSDtfsCounter, 1 mSDsluCounter, 48043 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 72068 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 19:06:33,379 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 72068 Invalid, 15 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 19:06:33,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14444 states. [2023-12-16 19:06:33,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14444 to 14443. [2023-12-16 19:06:33,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14443 states, 14442 states have (on average 1.6640354521534413) internal successors, (24032), 14442 states have internal predecessors, (24032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 19:06:33,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14443 states to 14443 states and 24032 transitions. [2023-12-16 19:06:33,803 INFO L78 Accepts]: Start accepts. Automaton has 14443 states and 24032 transitions. Word has length 323 [2023-12-16 19:06:33,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 19:06:33,804 INFO L495 AbstractCegarLoop]: Abstraction has 14443 states and 24032 transitions. [2023-12-16 19:06:33,804 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 80.75) internal successors, (323), 4 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 19:06:33,804 INFO L276 IsEmpty]: Start isEmpty. Operand 14443 states and 24032 transitions. [2023-12-16 19:06:33,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 325 [2023-12-16 19:06:33,806 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 19:06:33,807 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 19:06:33,807 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-16 19:06:33,807 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 19:06:33,807 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 19:06:33,807 INFO L85 PathProgramCache]: Analyzing trace with hash 592535985, now seen corresponding path program 1 times [2023-12-16 19:06:33,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 19:06:33,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106939119] [2023-12-16 19:06:33,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 19:06:33,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 19:06:34,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 19:06:35,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 19:06:35,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 19:06:35,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [106939119] [2023-12-16 19:06:35,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [106939119] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 19:06:35,725 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 19:06:35,725 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 19:06:35,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981551512] [2023-12-16 19:06:35,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 19:06:35,726 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 19:06:35,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 19:06:35,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 19:06:35,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-16 19:06:35,729 INFO L87 Difference]: Start difference. First operand 14443 states and 24032 transitions. Second operand has 6 states, 6 states have (on average 54.0) internal successors, (324), 5 states have internal predecessors, (324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 19:06:37,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 19:06:37,454 INFO L93 Difference]: Finished difference Result 43259 states and 71984 transitions. [2023-12-16 19:06:37,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-16 19:06:37,455 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 54.0) internal successors, (324), 5 states have internal predecessors, (324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 324 [2023-12-16 19:06:37,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 19:06:37,498 INFO L225 Difference]: With dead ends: 43259 [2023-12-16 19:06:37,498 INFO L226 Difference]: Without dead ends: 29000 [2023-12-16 19:06:37,512 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2023-12-16 19:06:37,512 INFO L413 NwaCegarLoop]: 24433 mSDtfsCounter, 119098 mSDsluCounter, 71818 mSDsCounter, 0 mSdLazyCounter, 360 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119098 SdHoareTripleChecker+Valid, 96251 SdHoareTripleChecker+Invalid, 360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 360 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-16 19:06:37,513 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [119098 Valid, 96251 Invalid, 360 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [0 Valid, 360 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-16 19:06:37,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29000 states. [2023-12-16 19:06:37,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29000 to 14742. [2023-12-16 19:06:37,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14742 states, 14741 states have (on average 1.6642697238993285) internal successors, (24533), 14741 states have internal predecessors, (24533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 19:06:37,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14742 states to 14742 states and 24533 transitions. [2023-12-16 19:06:37,777 INFO L78 Accepts]: Start accepts. Automaton has 14742 states and 24533 transitions. Word has length 324 [2023-12-16 19:06:37,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 19:06:37,777 INFO L495 AbstractCegarLoop]: Abstraction has 14742 states and 24533 transitions. [2023-12-16 19:06:37,777 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 54.0) internal successors, (324), 5 states have internal predecessors, (324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 19:06:37,778 INFO L276 IsEmpty]: Start isEmpty. Operand 14742 states and 24533 transitions. [2023-12-16 19:06:37,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 326 [2023-12-16 19:06:37,780 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 19:06:37,780 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 19:06:37,780 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-16 19:06:37,780 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 19:06:37,780 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 19:06:37,781 INFO L85 PathProgramCache]: Analyzing trace with hash -1899339215, now seen corresponding path program 1 times [2023-12-16 19:06:37,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 19:06:37,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129030145] [2023-12-16 19:06:37,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 19:06:37,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 19:06:38,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat Received shutdown request... [2023-12-16 19:06:39,496 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-16 19:06:39,496 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Termination requested (timeout or resource limit) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.walkLeafNode(Interpolator.java:304) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator$ProofTreeWalker.walk(Interpolator.java:154) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.interpolate(Interpolator.java:260) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.getInterpolants(Interpolator.java:237) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.getInterpolants(SMTInterpol.java:869) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.getInterpolants(SMTInterpol.java:793) at de.uni_freiburg.informatik.ultimate.logic.NoopScript.getInterpolants(NoopScript.java:352) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.getInterpolants(WrapperScript.java:337) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.getInterpolants(WrapperScript.java:337) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.getInterpolants(ManagedScript.java:201) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.computeCraigInterpolants(NestedInterpolantsBuilder.java:283) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.(NestedInterpolantsBuilder.java:164) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsRecursive(InterpolatingTraceCheckCraig.java:327) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:229) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:97) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:79) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:210) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:121) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:416) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:176) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2023-12-16 19:06:39,502 INFO L158 Benchmark]: Toolchain (without parser) took 51529.92ms. Allocated memory was 182.5MB in the beginning and 6.2GB in the end (delta: 6.0GB). Free memory was 105.3MB in the beginning and 4.2GB in the end (delta: -4.1GB). Peak memory consumption was 2.3GB. Max. memory is 8.0GB. [2023-12-16 19:06:39,502 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 182.5MB. Free memory is still 140.3MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 19:06:39,505 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2435.19ms. Allocated memory was 182.5MB in the beginning and 1.0GB in the end (delta: 826.3MB). Free memory was 104.8MB in the beginning and 702.3MB in the end (delta: -597.5MB). Peak memory consumption was 315.7MB. Max. memory is 8.0GB. [2023-12-16 19:06:39,506 INFO L158 Benchmark]: Boogie Procedure Inliner took 4661.06ms. Allocated memory was 1.0GB in the beginning and 4.9GB in the end (delta: 3.9GB). Free memory was 702.3MB in the beginning and 3.8GB in the end (delta: -3.1GB). Peak memory consumption was 865.1MB. Max. memory is 8.0GB. [2023-12-16 19:06:39,506 INFO L158 Benchmark]: Boogie Preprocessor took 6130.54ms. Allocated memory was 4.9GB in the beginning and 6.1GB in the end (delta: 1.2GB). Free memory was 3.8GB in the beginning and 4.7GB in the end (delta: -904.8MB). Peak memory consumption was 419.4MB. Max. memory is 8.0GB. [2023-12-16 19:06:39,506 INFO L158 Benchmark]: RCFGBuilder took 27628.48ms. Allocated memory was 6.1GB in the beginning and 6.2GB in the end (delta: 74.4MB). Free memory was 4.7GB in the beginning and 4.5GB in the end (delta: 167.7MB). Peak memory consumption was 767.6MB. Max. memory is 8.0GB. [2023-12-16 19:06:39,506 INFO L158 Benchmark]: TraceAbstraction took 10669.16ms. Allocated memory is still 6.2GB. Free memory was 4.5GB in the beginning and 4.2GB in the end (delta: 337.0MB). Peak memory consumption was 724.0MB. Max. memory is 8.0GB. [2023-12-16 19:06:39,508 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 182.5MB. Free memory is still 140.3MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 2435.19ms. Allocated memory was 182.5MB in the beginning and 1.0GB in the end (delta: 826.3MB). Free memory was 104.8MB in the beginning and 702.3MB in the end (delta: -597.5MB). Peak memory consumption was 315.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 4661.06ms. Allocated memory was 1.0GB in the beginning and 4.9GB in the end (delta: 3.9GB). Free memory was 702.3MB in the beginning and 3.8GB in the end (delta: -3.1GB). Peak memory consumption was 865.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 6130.54ms. Allocated memory was 4.9GB in the beginning and 6.1GB in the end (delta: 1.2GB). Free memory was 3.8GB in the beginning and 4.7GB in the end (delta: -904.8MB). Peak memory consumption was 419.4MB. Max. memory is 8.0GB. * RCFGBuilder took 27628.48ms. Allocated memory was 6.1GB in the beginning and 6.2GB in the end (delta: 74.4MB). Free memory was 4.7GB in the beginning and 4.5GB in the end (delta: 167.7MB). Peak memory consumption was 767.6MB. Max. memory is 8.0GB. * TraceAbstraction took 10669.16ms. Allocated memory is still 6.2GB. Free memory was 4.5GB in the beginning and 4.2GB in the end (delta: 337.0MB). Peak memory consumption was 724.0MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: Termination requested (timeout or resource limit) de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: Termination requested (timeout or resource limit): de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.walkLeafNode(Interpolator.java:304) RESULT: Ultimate could not prove your program: Toolchain returned no result. Completed graceful shutdown