/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.cal115.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 19:02:04,136 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 19:02:04,173 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 19:02:04,176 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 19:02:04,177 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 19:02:04,195 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 19:02:04,196 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 19:02:04,196 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 19:02:04,197 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 19:02:04,199 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 19:02:04,200 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 19:02:04,200 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 19:02:04,200 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 19:02:04,201 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 19:02:04,201 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 19:02:04,202 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 19:02:04,202 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 19:02:04,202 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-16 19:02:04,202 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 19:02:04,202 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 19:02:04,203 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 19:02:04,203 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 19:02:04,203 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 19:02:04,203 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 19:02:04,204 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 19:02:04,204 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 19:02:04,205 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 19:02:04,205 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 19:02:04,205 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 19:02:04,205 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 19:02:04,206 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 19:02:04,206 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 19:02:04,206 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 19:02:04,206 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-16 19:02:04,206 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-16 19:02:04,207 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 19:02:04,207 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 19:02:04,207 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 19:02:04,207 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 19:02:04,207 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 19:02:04,207 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-16 19:02:04,421 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 19:02:04,440 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 19:02:04,442 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 19:02:04,443 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 19:02:04,443 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 19:02:04,444 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.cal115.c [2023-12-16 19:02:05,445 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 19:02:05,868 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 19:02:05,869 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.cal115.c [2023-12-16 19:02:05,923 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/abd6ddb57/62a99737832f4db48b2d96258899f3c3/FLAG51fce264e [2023-12-16 19:02:05,935 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/abd6ddb57/62a99737832f4db48b2d96258899f3c3 [2023-12-16 19:02:05,937 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 19:02:05,939 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 19:02:05,941 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 19:02:05,941 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 19:02:05,944 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 19:02:05,944 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 07:02:05" (1/1) ... [2023-12-16 19:02:05,945 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f8ff01e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:02:05, skipping insertion in model container [2023-12-16 19:02:05,945 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 07:02:05" (1/1) ... [2023-12-16 19:02:06,133 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 19:02:06,406 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.cal115.c[1246,1259] [2023-12-16 19:02:07,589 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 19:02:07,597 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 19:02:07,605 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.cal115.c[1246,1259] [2023-12-16 19:02:08,492 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 19:02:08,503 INFO L206 MainTranslator]: Completed translation [2023-12-16 19:02:08,505 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:02:08 WrapperNode [2023-12-16 19:02:08,505 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 19:02:08,506 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 19:02:08,506 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 19:02:08,506 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 19:02:08,512 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:02:08" (1/1) ... [2023-12-16 19:02:08,965 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:02:08" (1/1) ... [2023-12-16 19:02:12,668 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 57352 [2023-12-16 19:02:12,669 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 19:02:12,669 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 19:02:12,670 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 19:02:12,670 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 19:02:12,678 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:02:08" (1/1) ... [2023-12-16 19:02:12,678 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:02:08" (1/1) ... [2023-12-16 19:02:13,810 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:02:08" (1/1) ... [2023-12-16 19:02:14,411 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 19:02:14,411 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:02:08" (1/1) ... [2023-12-16 19:02:14,411 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:02:08" (1/1) ... [2023-12-16 19:02:15,653 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:02:08" (1/1) ... [2023-12-16 19:02:15,789 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:02:08" (1/1) ... [2023-12-16 19:02:16,004 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:02:08" (1/1) ... [2023-12-16 19:02:16,145 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:02:08" (1/1) ... [2023-12-16 19:02:17,042 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 19:02:17,045 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 19:02:17,045 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 19:02:17,045 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 19:02:17,046 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:02:08" (1/1) ... [2023-12-16 19:02:17,052 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 19:02:17,060 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 19:02:17,093 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 19:02:17,111 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 19:02:17,117 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 19:02:17,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-16 19:02:17,118 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 19:02:17,118 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 19:02:19,457 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 19:02:19,461 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 19:02:48,428 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 19:02:49,085 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 19:02:49,085 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 19:02:49,085 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 07:02:49 BoogieIcfgContainer [2023-12-16 19:02:49,086 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 19:02:49,088 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 19:02:49,088 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 19:02:49,091 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 19:02:49,091 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 07:02:05" (1/3) ... [2023-12-16 19:02:49,092 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7dc6263b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 07:02:49, skipping insertion in model container [2023-12-16 19:02:49,092 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:02:08" (2/3) ... [2023-12-16 19:02:49,093 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7dc6263b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 07:02:49, skipping insertion in model container [2023-12-16 19:02:49,093 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 07:02:49" (3/3) ... [2023-12-16 19:02:49,095 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.cal115.c [2023-12-16 19:02:49,107 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 19:02:49,107 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 19:02:49,455 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 19:02:49,460 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;@6c33c4bf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 19:02:49,461 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 19:02:49,497 INFO L276 IsEmpty]: Start isEmpty. Operand has 11894 states, 11892 states have (on average 1.667255297679112) internal successors, (19827), 11893 states have internal predecessors, (19827), 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 19:02:49,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 344 [2023-12-16 19:02:49,525 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 19:02:49,526 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 19:02:49,526 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 19:02:49,532 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 19:02:49,533 INFO L85 PathProgramCache]: Analyzing trace with hash -193547239, now seen corresponding path program 1 times [2023-12-16 19:02:49,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 19:02:49,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431360829] [2023-12-16 19:02:49,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 19:02:49,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 19:02:49,981 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 19:02:49,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [123168072] [2023-12-16 19:02:49,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 19:02:49,982 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 19:02:49,982 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 19:02:49,985 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 19:02:49,991 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-16 19:02:53,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 19:02:53,086 INFO L262 TraceCheckSpWp]: Trace formula consists of 1897 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 19:02:53,131 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 19:02:53,183 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 19:02:53,183 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 19:02:53,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 19:02:53,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1431360829] [2023-12-16 19:02:53,184 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 19:02:53,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [123168072] [2023-12-16 19:02:53,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [123168072] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 19:02:53,184 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 19:02:53,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 19:02:53,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346460381] [2023-12-16 19:02:53,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 19:02:53,189 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 19:02:53,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 19:02:53,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 19:02:53,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 19:02:53,229 INFO L87 Difference]: Start difference. First operand has 11894 states, 11892 states have (on average 1.667255297679112) internal successors, (19827), 11893 states have internal predecessors, (19827), 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 3 states, 3 states have (on average 114.33333333333333) internal successors, (343), 3 states have internal predecessors, (343), 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 19:02:53,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 19:02:53,536 INFO L93 Difference]: Finished difference Result 23505 states and 39185 transitions. [2023-12-16 19:02:53,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 19:02:53,548 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 114.33333333333333) internal successors, (343), 3 states have internal predecessors, (343), 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 343 [2023-12-16 19:02:53,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 19:02:53,603 INFO L225 Difference]: With dead ends: 23505 [2023-12-16 19:02:53,604 INFO L226 Difference]: Without dead ends: 11894 [2023-12-16 19:02:53,624 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 342 GetRequests, 341 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 19:02:53,629 INFO L413 NwaCegarLoop]: 19818 mSDtfsCounter, 6 mSDsluCounter, 19808 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 39626 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 19:02:53,630 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 39626 Invalid, 8 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 19:02:53,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11894 states. [2023-12-16 19:02:53,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11894 to 11893. [2023-12-16 19:02:53,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11893 states, 11892 states have (on average 1.6667507568113018) internal successors, (19821), 11892 states have internal predecessors, (19821), 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 19:02:54,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11893 states to 11893 states and 19821 transitions. [2023-12-16 19:02:54,011 INFO L78 Accepts]: Start accepts. Automaton has 11893 states and 19821 transitions. Word has length 343 [2023-12-16 19:02:54,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 19:02:54,012 INFO L495 AbstractCegarLoop]: Abstraction has 11893 states and 19821 transitions. [2023-12-16 19:02:54,012 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 114.33333333333333) internal successors, (343), 3 states have internal predecessors, (343), 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 19:02:54,012 INFO L276 IsEmpty]: Start isEmpty. Operand 11893 states and 19821 transitions. [2023-12-16 19:02:54,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 344 [2023-12-16 19:02:54,015 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 19:02:54,015 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 19:02:54,034 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-12-16 19:02:54,233 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-12-16 19:02:54,234 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 19:02:54,234 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 19:02:54,234 INFO L85 PathProgramCache]: Analyzing trace with hash 1258832011, now seen corresponding path program 1 times [2023-12-16 19:02:54,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 19:02:54,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797875668] [2023-12-16 19:02:54,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 19:02:54,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 19:02:54,421 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 19:02:54,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2107141687] [2023-12-16 19:02:54,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 19:02:54,422 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 19:02:54,422 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 19:02:54,427 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 19:02:54,447 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-16 19:02:57,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 19:02:57,391 INFO L262 TraceCheckSpWp]: Trace formula consists of 1897 conjuncts, 40 conjunts are in the unsatisfiable core [2023-12-16 19:02:57,423 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 19:02:58,659 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 19:02:58,659 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 19:02:58,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 19:02:58,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797875668] [2023-12-16 19:02:58,659 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 19:02:58,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2107141687] [2023-12-16 19:02:58,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2107141687] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 19:02:58,660 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 19:02:58,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 19:02:58,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445948940] [2023-12-16 19:02:58,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 19:02:58,662 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 19:02:58,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 19:02:58,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 19:02:58,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-16 19:02:58,664 INFO L87 Difference]: Start difference. First operand 11893 states and 19821 transitions. Second operand has 5 states, 5 states have (on average 68.6) internal successors, (343), 4 states have internal predecessors, (343), 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 19:03:00,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 19:03:00,689 INFO L93 Difference]: Finished difference Result 23504 states and 39172 transitions. [2023-12-16 19:03:00,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 19:03:00,689 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 68.6) internal successors, (343), 4 states have internal predecessors, (343), 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 343 [2023-12-16 19:03:00,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 19:03:00,718 INFO L225 Difference]: With dead ends: 23504 [2023-12-16 19:03:00,718 INFO L226 Difference]: Without dead ends: 11894 [2023-12-16 19:03:00,729 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 343 GetRequests, 339 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-12-16 19:03:00,729 INFO L413 NwaCegarLoop]: 18928 mSDtfsCounter, 19546 mSDsluCounter, 37852 mSDsCounter, 0 mSdLazyCounter, 2670 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19546 SdHoareTripleChecker+Valid, 56780 SdHoareTripleChecker+Invalid, 2671 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2670 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-12-16 19:03:00,730 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19546 Valid, 56780 Invalid, 2671 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 2670 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-12-16 19:03:00,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11894 states. [2023-12-16 19:03:00,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11894 to 11893. [2023-12-16 19:03:00,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11893 states, 11892 states have (on average 1.6665825765220317) internal successors, (19819), 11892 states have internal predecessors, (19819), 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 19:03:00,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11893 states to 11893 states and 19819 transitions. [2023-12-16 19:03:00,913 INFO L78 Accepts]: Start accepts. Automaton has 11893 states and 19819 transitions. Word has length 343 [2023-12-16 19:03:00,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 19:03:00,916 INFO L495 AbstractCegarLoop]: Abstraction has 11893 states and 19819 transitions. [2023-12-16 19:03:00,916 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 68.6) internal successors, (343), 4 states have internal predecessors, (343), 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 19:03:00,916 INFO L276 IsEmpty]: Start isEmpty. Operand 11893 states and 19819 transitions. [2023-12-16 19:03:00,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 345 [2023-12-16 19:03:00,919 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 19:03:00,919 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 19:03:00,940 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-16 19:03:01,134 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2023-12-16 19:03:01,135 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 19:03:01,135 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 19:03:01,135 INFO L85 PathProgramCache]: Analyzing trace with hash -930837783, now seen corresponding path program 1 times [2023-12-16 19:03:01,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 19:03:01,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026446846] [2023-12-16 19:03:01,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 19:03:01,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 19:03:01,329 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 19:03:01,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1680131118] [2023-12-16 19:03:01,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 19:03:01,330 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 19:03:01,330 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 19:03:01,335 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 19:03:01,356 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process Received shutdown request... [2023-12-16 19:03:01,557 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 19:03:01,567 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 19:03:02,559 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 19:03:02,569 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-16 19:03:02,678 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 [2023-12-16 19:03:02,760 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 19:03:02,760 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 345 with TraceHistMax 1,while executing Executor. [2023-12-16 19:03:02,764 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-12-16 19:03:02,765 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 19:03:02,767 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 07:03:02 BoogieIcfgContainer [2023-12-16 19:03:02,767 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 19:03:02,767 INFO L158 Benchmark]: Toolchain (without parser) took 56828.69ms. Allocated memory was 189.8MB in the beginning and 6.0GB in the end (delta: 5.8GB). Free memory was 113.6MB in the beginning and 4.4GB in the end (delta: -4.3GB). Peak memory consumption was 1.9GB. Max. memory is 8.0GB. [2023-12-16 19:03:02,768 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 189.8MB. Free memory is still 146.3MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 19:03:02,768 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2564.75ms. Allocated memory was 189.8MB in the beginning and 481.3MB in the end (delta: 291.5MB). Free memory was 113.1MB in the beginning and 190.2MB in the end (delta: -77.1MB). Peak memory consumption was 285.7MB. Max. memory is 8.0GB. [2023-12-16 19:03:02,768 INFO L158 Benchmark]: Boogie Procedure Inliner took 4162.84ms. Allocated memory was 481.3MB in the beginning and 4.7GB in the end (delta: 4.2GB). Free memory was 190.2MB in the beginning and 3.8GB in the end (delta: -3.6GB). Peak memory consumption was 730.3MB. Max. memory is 8.0GB. [2023-12-16 19:03:02,768 INFO L158 Benchmark]: Boogie Preprocessor took 4373.37ms. Allocated memory is still 4.7GB. Free memory was 3.8GB in the beginning and 3.4GB in the end (delta: 361.2MB). Peak memory consumption was 388.0MB. Max. memory is 8.0GB. [2023-12-16 19:03:02,769 INFO L158 Benchmark]: RCFGBuilder took 32041.84ms. Allocated memory was 4.7GB in the beginning and 6.0GB in the end (delta: 1.3GB). Free memory was 3.4GB in the beginning and 4.3GB in the end (delta: -831.8MB). Peak memory consumption was 785.7MB. Max. memory is 8.0GB. [2023-12-16 19:03:02,769 INFO L158 Benchmark]: TraceAbstraction took 13678.60ms. Allocated memory is still 6.0GB. Free memory was 4.3GB in the beginning and 4.4GB in the end (delta: -120.3MB). Peak memory consumption was 206.8MB. Max. memory is 8.0GB. [2023-12-16 19:03:02,771 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 189.8MB. Free memory is still 146.3MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 2564.75ms. Allocated memory was 189.8MB in the beginning and 481.3MB in the end (delta: 291.5MB). Free memory was 113.1MB in the beginning and 190.2MB in the end (delta: -77.1MB). Peak memory consumption was 285.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 4162.84ms. Allocated memory was 481.3MB in the beginning and 4.7GB in the end (delta: 4.2GB). Free memory was 190.2MB in the beginning and 3.8GB in the end (delta: -3.6GB). Peak memory consumption was 730.3MB. Max. memory is 8.0GB. * Boogie Preprocessor took 4373.37ms. Allocated memory is still 4.7GB. Free memory was 3.8GB in the beginning and 3.4GB in the end (delta: 361.2MB). Peak memory consumption was 388.0MB. Max. memory is 8.0GB. * RCFGBuilder took 32041.84ms. Allocated memory was 4.7GB in the beginning and 6.0GB in the end (delta: 1.3GB). Free memory was 3.4GB in the beginning and 4.3GB in the end (delta: -831.8MB). Peak memory consumption was 785.7MB. Max. memory is 8.0GB. * TraceAbstraction took 13678.60ms. Allocated memory is still 6.0GB. Free memory was 4.3GB in the beginning and 4.4GB in the end (delta: -120.3MB). Peak memory consumption was 206.8MB. Max. memory is 8.0GB. * 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 - TimeoutResultAtElement [Line: 21]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 21). Cancelled while NwaCegarLoop was analyzing trace of length 345 with TraceHistMax 1,while executing Executor. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11894 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 13.6s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 2.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 19552 SdHoareTripleChecker+Valid, 1.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 19552 mSDsluCounter, 96406 SdHoareTripleChecker+Invalid, 1.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 57660 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2677 IncrementalHoareTripleChecker+Invalid, 2679 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 38746 mSDtfsCounter, 2677 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 685 GetRequests, 680 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11894occurred in iteration=0, InterpolantAutomatonStates: 8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 2 MinimizatonAttempts, 2 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 2.4s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 686 NumberOfCodeBlocks, 686 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 684 ConstructedInterpolants, 0 QuantifiedInterpolants, 3173 SizeOfPredicates, 2 NumberOfNonLiveVariables, 3794 ConjunctsInSsa, 43 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 could not prove your program: Timeout Completed graceful shutdown