/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/loops-crafted-1/nested5-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-15 22:05:44,797 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-15 22:05:44,850 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-15 22:05:44,857 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-15 22:05:44,857 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-15 22:05:44,889 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-15 22:05:44,889 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-15 22:05:44,889 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-15 22:05:44,890 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-15 22:05:44,893 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-15 22:05:44,893 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-15 22:05:44,893 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-15 22:05:44,894 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-15 22:05:44,895 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-15 22:05:44,895 INFO L153 SettingsManager]: * Use SBE=true [2023-12-15 22:05:44,895 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-15 22:05:44,895 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-15 22:05:44,895 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-15 22:05:44,895 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-15 22:05:44,896 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-15 22:05:44,896 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-15 22:05:44,897 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-15 22:05:44,897 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-15 22:05:44,897 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-15 22:05:44,897 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-15 22:05:44,897 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-15 22:05:44,897 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-15 22:05:44,898 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-15 22:05:44,898 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-15 22:05:44,898 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-15 22:05:44,899 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-15 22:05:44,899 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-15 22:05:44,899 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 22:05:44,899 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-15 22:05:44,899 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-15 22:05:44,899 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-15 22:05:44,900 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-15 22:05:44,900 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-15 22:05:44,900 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-15 22:05:44,900 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-15 22:05:44,901 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-15 22:05:44,901 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-15 22:05:44,901 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-15 22:05:44,901 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-15 22:05:45,097 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-15 22:05:45,118 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-15 22:05:45,120 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-15 22:05:45,121 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-15 22:05:45,121 INFO L274 PluginConnector]: CDTParser initialized [2023-12-15 22:05:45,122 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops-crafted-1/nested5-2.c [2023-12-15 22:05:46,139 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-15 22:05:46,285 INFO L384 CDTParser]: Found 1 translation units. [2023-12-15 22:05:46,286 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops-crafted-1/nested5-2.c [2023-12-15 22:05:46,292 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c1676349/9894cd161d39494cbd10212f9e726777/FLAGd102d39dc [2023-12-15 22:05:46,305 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c1676349/9894cd161d39494cbd10212f9e726777 [2023-12-15 22:05:46,307 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-15 22:05:46,308 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-15 22:05:46,310 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-15 22:05:46,310 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-15 22:05:46,313 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-15 22:05:46,313 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 10:05:46" (1/1) ... [2023-12-15 22:05:46,314 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60abf270 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:05:46, skipping insertion in model container [2023-12-15 22:05:46,314 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 10:05:46" (1/1) ... [2023-12-15 22:05:46,330 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-15 22:05:46,444 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loops-crafted-1/nested5-2.c[321,334] [2023-12-15 22:05:46,461 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 22:05:46,469 INFO L202 MainTranslator]: Completed pre-run [2023-12-15 22:05:46,479 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loops-crafted-1/nested5-2.c[321,334] [2023-12-15 22:05:46,484 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 22:05:46,497 INFO L206 MainTranslator]: Completed translation [2023-12-15 22:05:46,498 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:05:46 WrapperNode [2023-12-15 22:05:46,498 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-15 22:05:46,499 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-15 22:05:46,499 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-15 22:05:46,499 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-15 22:05:46,504 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:05:46" (1/1) ... [2023-12-15 22:05:46,509 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:05:46" (1/1) ... [2023-12-15 22:05:46,524 INFO L138 Inliner]: procedures = 12, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 63 [2023-12-15 22:05:46,524 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-15 22:05:46,524 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-15 22:05:46,525 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-15 22:05:46,525 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-15 22:05:46,531 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:05:46" (1/1) ... [2023-12-15 22:05:46,531 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:05:46" (1/1) ... [2023-12-15 22:05:46,539 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:05:46" (1/1) ... [2023-12-15 22:05:46,555 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]. [2023-12-15 22:05:46,555 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:05:46" (1/1) ... [2023-12-15 22:05:46,555 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:05:46" (1/1) ... [2023-12-15 22:05:46,557 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:05:46" (1/1) ... [2023-12-15 22:05:46,559 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:05:46" (1/1) ... [2023-12-15 22:05:46,560 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:05:46" (1/1) ... [2023-12-15 22:05:46,560 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:05:46" (1/1) ... [2023-12-15 22:05:46,561 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-15 22:05:46,562 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-15 22:05:46,562 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-15 22:05:46,562 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-15 22:05:46,563 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:05:46" (1/1) ... [2023-12-15 22:05:46,569 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 22:05:46,581 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 22:05:46,593 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) [2023-12-15 22:05:46,613 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 [2023-12-15 22:05:46,619 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-15 22:05:46,620 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-15 22:05:46,620 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-15 22:05:46,620 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-15 22:05:46,663 INFO L241 CfgBuilder]: Building ICFG [2023-12-15 22:05:46,664 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-15 22:05:46,780 INFO L282 CfgBuilder]: Performing block encoding [2023-12-15 22:05:46,797 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-15 22:05:46,797 INFO L309 CfgBuilder]: Removed 5 assume(true) statements. [2023-12-15 22:05:46,797 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 10:05:46 BoogieIcfgContainer [2023-12-15 22:05:46,798 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-15 22:05:46,799 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-15 22:05:46,799 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-15 22:05:46,801 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-15 22:05:46,801 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 10:05:46" (1/3) ... [2023-12-15 22:05:46,802 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f21745d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 10:05:46, skipping insertion in model container [2023-12-15 22:05:46,802 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:05:46" (2/3) ... [2023-12-15 22:05:46,802 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f21745d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 10:05:46, skipping insertion in model container [2023-12-15 22:05:46,802 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 10:05:46" (3/3) ... [2023-12-15 22:05:46,803 INFO L112 eAbstractionObserver]: Analyzing ICFG nested5-2.c [2023-12-15 22:05:46,815 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-15 22:05:46,815 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-15 22:05:46,855 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-15 22:05:46,860 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;@38bad3d9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-15 22:05:46,861 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-15 22:05:46,864 INFO L276 IsEmpty]: Start isEmpty. Operand has 16 states, 14 states have (on average 1.8571428571428572) internal successors, (26), 15 states have internal predecessors, (26), 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) [2023-12-15 22:05:46,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-12-15 22:05:46,870 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:05:46,872 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:05:46,873 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:05:46,878 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:05:46,878 INFO L85 PathProgramCache]: Analyzing trace with hash -70950292, now seen corresponding path program 1 times [2023-12-15 22:05:46,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:05:46,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216573861] [2023-12-15 22:05:46,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:05:46,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:05:46,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:05:47,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 22:05:47,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:05:47,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216573861] [2023-12-15 22:05:47,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1216573861] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:05:47,049 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:05:47,049 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 22:05:47,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951279718] [2023-12-15 22:05:47,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:05:47,053 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 22:05:47,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:05:47,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 22:05:47,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 22:05:47,071 INFO L87 Difference]: Start difference. First operand has 16 states, 14 states have (on average 1.8571428571428572) internal successors, (26), 15 states have internal predecessors, (26), 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 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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) [2023-12-15 22:05:47,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:05:47,094 INFO L93 Difference]: Finished difference Result 40 states and 70 transitions. [2023-12-15 22:05:47,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 22:05:47,096 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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 9 [2023-12-15 22:05:47,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:05:47,101 INFO L225 Difference]: With dead ends: 40 [2023-12-15 22:05:47,101 INFO L226 Difference]: Without dead ends: 22 [2023-12-15 22:05:47,103 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 22:05:47,107 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 10 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 22:05:47,109 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 29 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 22:05:47,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2023-12-15 22:05:47,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 15. [2023-12-15 22:05:47,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 14 states have internal predecessors, (19), 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) [2023-12-15 22:05:47,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 19 transitions. [2023-12-15 22:05:47,129 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 19 transitions. Word has length 9 [2023-12-15 22:05:47,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:05:47,130 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 19 transitions. [2023-12-15 22:05:47,130 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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) [2023-12-15 22:05:47,130 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 19 transitions. [2023-12-15 22:05:47,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-12-15 22:05:47,130 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:05:47,130 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:05:47,130 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-15 22:05:47,131 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:05:47,131 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:05:47,131 INFO L85 PathProgramCache]: Analyzing trace with hash 2136825469, now seen corresponding path program 1 times [2023-12-15 22:05:47,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:05:47,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1149513865] [2023-12-15 22:05:47,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:05:47,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:05:47,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:05:47,298 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 22:05:47,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:05:47,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1149513865] [2023-12-15 22:05:47,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1149513865] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 22:05:47,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [333353855] [2023-12-15 22:05:47,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:05:47,299 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 22:05:47,299 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 22:05:47,306 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) [2023-12-15 22:05:47,310 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-15 22:05:47,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:05:47,344 INFO L262 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-15 22:05:47,347 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 22:05:47,368 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 22:05:47,368 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-15 22:05:47,386 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 22:05:47,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [333353855] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-15 22:05:47,387 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-15 22:05:47,387 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2023-12-15 22:05:47,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395804664] [2023-12-15 22:05:47,387 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-15 22:05:47,388 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 22:05:47,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:05:47,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 22:05:47,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2023-12-15 22:05:47,389 INFO L87 Difference]: Start difference. First operand 15 states and 19 transitions. Second operand has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 states have internal predecessors, (15), 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) [2023-12-15 22:05:47,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:05:47,444 INFO L93 Difference]: Finished difference Result 39 states and 53 transitions. [2023-12-15 22:05:47,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-15 22:05:47,445 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 states have internal predecessors, (15), 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 10 [2023-12-15 22:05:47,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:05:47,446 INFO L225 Difference]: With dead ends: 39 [2023-12-15 22:05:47,446 INFO L226 Difference]: Without dead ends: 25 [2023-12-15 22:05:47,446 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=30, Unknown=0, NotChecked=0, Total=56 [2023-12-15 22:05:47,447 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 27 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 22:05:47,447 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 51 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 22:05:47,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2023-12-15 22:05:47,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 18. [2023-12-15 22:05:47,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 17 states have internal predecessors, (22), 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) [2023-12-15 22:05:47,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 22 transitions. [2023-12-15 22:05:47,451 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 22 transitions. Word has length 10 [2023-12-15 22:05:47,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:05:47,452 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 22 transitions. [2023-12-15 22:05:47,452 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 states have internal predecessors, (15), 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) [2023-12-15 22:05:47,452 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 22 transitions. [2023-12-15 22:05:47,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-12-15 22:05:47,452 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:05:47,453 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:05:47,461 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-15 22:05:47,659 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 22:05:47,659 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:05:47,660 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:05:47,660 INFO L85 PathProgramCache]: Analyzing trace with hash 535584428, now seen corresponding path program 2 times [2023-12-15 22:05:47,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:05:47,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956383907] [2023-12-15 22:05:47,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:05:47,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:05:47,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:05:47,771 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 22:05:47,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:05:47,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [956383907] [2023-12-15 22:05:47,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [956383907] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 22:05:47,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [32853994] [2023-12-15 22:05:47,772 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-15 22:05:47,773 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 22:05:47,773 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 22:05:47,774 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) [2023-12-15 22:05:47,782 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-15 22:05:47,806 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-15 22:05:47,807 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-15 22:05:47,807 INFO L262 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-15 22:05:47,808 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 22:05:47,835 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 22:05:47,838 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-15 22:05:47,956 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 22:05:47,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [32853994] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-15 22:05:47,956 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-15 22:05:47,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2023-12-15 22:05:47,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051037868] [2023-12-15 22:05:47,957 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-15 22:05:47,957 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-15 22:05:47,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:05:47,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-15 22:05:47,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=98, Unknown=0, NotChecked=0, Total=156 [2023-12-15 22:05:47,958 INFO L87 Difference]: Start difference. First operand 18 states and 22 transitions. Second operand has 13 states, 13 states have (on average 1.6153846153846154) internal successors, (21), 13 states have internal predecessors, (21), 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) [2023-12-15 22:05:48,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:05:48,153 INFO L93 Difference]: Finished difference Result 48 states and 65 transitions. [2023-12-15 22:05:48,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-15 22:05:48,155 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 1.6153846153846154) internal successors, (21), 13 states have internal predecessors, (21), 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 13 [2023-12-15 22:05:48,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:05:48,156 INFO L225 Difference]: With dead ends: 48 [2023-12-15 22:05:48,156 INFO L226 Difference]: Without dead ends: 31 [2023-12-15 22:05:48,156 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=110, Invalid=162, Unknown=0, NotChecked=0, Total=272 [2023-12-15 22:05:48,157 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 18 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 22:05:48,157 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 111 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 22:05:48,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2023-12-15 22:05:48,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 24. [2023-12-15 22:05:48,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 23 states have (on average 1.2173913043478262) internal successors, (28), 23 states have internal predecessors, (28), 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) [2023-12-15 22:05:48,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 28 transitions. [2023-12-15 22:05:48,161 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 28 transitions. Word has length 13 [2023-12-15 22:05:48,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:05:48,161 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 28 transitions. [2023-12-15 22:05:48,161 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 1.6153846153846154) internal successors, (21), 13 states have internal predecessors, (21), 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) [2023-12-15 22:05:48,161 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions. [2023-12-15 22:05:48,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-12-15 22:05:48,162 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:05:48,162 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:05:48,178 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-15 22:05:48,368 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,SelfDestructingSolverStorable2 [2023-12-15 22:05:48,369 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:05:48,369 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:05:48,369 INFO L85 PathProgramCache]: Analyzing trace with hash -257516276, now seen corresponding path program 3 times [2023-12-15 22:05:48,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:05:48,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859429440] [2023-12-15 22:05:48,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:05:48,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:05:48,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:05:48,572 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 22:05:48,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:05:48,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1859429440] [2023-12-15 22:05:48,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1859429440] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 22:05:48,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1418295557] [2023-12-15 22:05:48,577 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-15 22:05:48,577 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 22:05:48,577 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 22:05:48,594 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) [2023-12-15 22:05:48,624 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-15 22:05:48,640 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2023-12-15 22:05:48,640 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-15 22:05:48,641 INFO L262 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 23 conjunts are in the unsatisfiable core [2023-12-15 22:05:48,642 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 22:05:48,673 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 22:05:48,674 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-15 22:05:48,908 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 22:05:48,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1418295557] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-15 22:05:48,909 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-15 22:05:48,909 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 25 [2023-12-15 22:05:48,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658037765] [2023-12-15 22:05:48,909 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-15 22:05:48,909 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2023-12-15 22:05:48,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:05:48,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2023-12-15 22:05:48,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=190, Invalid=410, Unknown=0, NotChecked=0, Total=600 [2023-12-15 22:05:48,911 INFO L87 Difference]: Start difference. First operand 24 states and 28 transitions. Second operand has 25 states, 25 states have (on average 1.32) internal successors, (33), 25 states have internal predecessors, (33), 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) [2023-12-15 22:05:52,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:05:52,189 INFO L93 Difference]: Finished difference Result 66 states and 89 transitions. [2023-12-15 22:05:52,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-12-15 22:05:52,189 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 1.32) internal successors, (33), 25 states have internal predecessors, (33), 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 19 [2023-12-15 22:05:52,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:05:52,190 INFO L225 Difference]: With dead ends: 66 [2023-12-15 22:05:52,190 INFO L226 Difference]: Without dead ends: 43 [2023-12-15 22:05:52,191 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=440, Invalid=750, Unknown=0, NotChecked=0, Total=1190 [2023-12-15 22:05:52,191 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 18 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 237 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-15 22:05:52,191 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 237 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-15 22:05:52,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2023-12-15 22:05:52,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 36. [2023-12-15 22:05:52,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 35 states have (on average 1.1428571428571428) internal successors, (40), 35 states have internal predecessors, (40), 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) [2023-12-15 22:05:52,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 40 transitions. [2023-12-15 22:05:52,197 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 40 transitions. Word has length 19 [2023-12-15 22:05:52,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:05:52,198 INFO L495 AbstractCegarLoop]: Abstraction has 36 states and 40 transitions. [2023-12-15 22:05:52,198 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 1.32) internal successors, (33), 25 states have internal predecessors, (33), 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) [2023-12-15 22:05:52,198 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 40 transitions. [2023-12-15 22:05:52,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-12-15 22:05:52,199 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:05:52,199 INFO L195 NwaCegarLoop]: trace histogram [22, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:05:52,205 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-15 22:05:52,403 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 22:05:52,403 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:05:52,404 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:05:52,404 INFO L85 PathProgramCache]: Analyzing trace with hash 486556108, now seen corresponding path program 4 times [2023-12-15 22:05:52,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:05:52,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128589439] [2023-12-15 22:05:52,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:05:52,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:05:52,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:05:52,817 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 22:05:52,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:05:52,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128589439] [2023-12-15 22:05:52,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2128589439] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 22:05:52,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [306541465] [2023-12-15 22:05:52,818 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-12-15 22:05:52,818 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 22:05:52,818 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 22:05:52,820 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 22:05:52,865 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-15 22:05:52,913 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-12-15 22:05:52,914 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-15 22:05:52,915 INFO L262 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 47 conjunts are in the unsatisfiable core [2023-12-15 22:05:52,917 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 22:05:52,966 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 22:05:52,966 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-15 22:05:53,732 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 22:05:53,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [306541465] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-15 22:05:53,732 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-15 22:05:53,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25, 25] total 49 [2023-12-15 22:05:53,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293650559] [2023-12-15 22:05:53,732 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-15 22:05:53,733 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2023-12-15 22:05:53,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:05:53,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2023-12-15 22:05:53,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=670, Invalid=1682, Unknown=0, NotChecked=0, Total=2352 [2023-12-15 22:05:53,738 INFO L87 Difference]: Start difference. First operand 36 states and 40 transitions. Second operand has 49 states, 49 states have (on average 1.163265306122449) internal successors, (57), 49 states have internal predecessors, (57), 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) Received shutdown request... [2023-12-15 22:07:06,481 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-15 22:07:06,495 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 [2023-12-15 22:07:07,488 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-12-15 22:07:07,696 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forcibly destroying the process [2023-12-15 22:07:07,701 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 137 [2023-12-15 22:07:07,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2023-12-15 22:07:07,702 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 69.6s TimeCoverageRelationStatistics Valid=1110, Invalid=2195, Unknown=1, NotChecked=0, Total=3306 [2023-12-15 22:07:07,703 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 27 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 564 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 568 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 564 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-15 22:07:07,703 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 208 Invalid, 568 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 564 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-15 22:07:07,704 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-15 22:07:07,705 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-15 22:07:07,705 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (36states) and FLOYD_HOARE automaton (currently 34 states, 49 states before enhancement),while executing Executor. [2023-12-15 22:07:07,711 INFO L445 BasicCegarLoop]: Path program histogram: [4, 1] [2023-12-15 22:07:07,713 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-15 22:07:07,715 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.12 10:07:07 BoogieIcfgContainer [2023-12-15 22:07:07,715 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-15 22:07:07,715 INFO L158 Benchmark]: Toolchain (without parser) took 81407.93ms. Allocated memory is still 324.0MB. Free memory was 278.2MB in the beginning and 232.7MB in the end (delta: 45.5MB). Peak memory consumption was 46.5MB. Max. memory is 8.0GB. [2023-12-15 22:07:07,716 INFO L158 Benchmark]: CDTParser took 0.46ms. Allocated memory is still 187.7MB. Free memory is still 134.1MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-15 22:07:07,716 INFO L158 Benchmark]: CACSL2BoogieTranslator took 188.38ms. Allocated memory is still 324.0MB. Free memory was 278.2MB in the beginning and 267.2MB in the end (delta: 11.0MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2023-12-15 22:07:07,716 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.99ms. Allocated memory is still 324.0MB. Free memory was 267.2MB in the beginning and 266.0MB in the end (delta: 1.1MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-12-15 22:07:07,716 INFO L158 Benchmark]: Boogie Preprocessor took 36.93ms. Allocated memory is still 324.0MB. Free memory was 266.0MB in the beginning and 264.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-15 22:07:07,716 INFO L158 Benchmark]: RCFGBuilder took 235.62ms. Allocated memory is still 324.0MB. Free memory was 264.0MB in the beginning and 252.5MB in the end (delta: 11.5MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2023-12-15 22:07:07,717 INFO L158 Benchmark]: TraceAbstraction took 80916.09ms. Allocated memory is still 324.0MB. Free memory was 252.0MB in the beginning and 232.7MB in the end (delta: 19.2MB). Peak memory consumption was 20.3MB. Max. memory is 8.0GB. [2023-12-15 22:07:07,718 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.46ms. Allocated memory is still 187.7MB. Free memory is still 134.1MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 188.38ms. Allocated memory is still 324.0MB. Free memory was 278.2MB in the beginning and 267.2MB in the end (delta: 11.0MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 24.99ms. Allocated memory is still 324.0MB. Free memory was 267.2MB in the beginning and 266.0MB in the end (delta: 1.1MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 36.93ms. Allocated memory is still 324.0MB. Free memory was 266.0MB in the beginning and 264.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 235.62ms. Allocated memory is still 324.0MB. Free memory was 264.0MB in the beginning and 252.5MB in the end (delta: 11.5MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * TraceAbstraction took 80916.09ms. Allocated memory is still 324.0MB. Free memory was 252.0MB in the beginning and 232.7MB in the end (delta: 19.2MB). Peak memory consumption was 20.3MB. 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: 7]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 7). Cancelled while NwaCegarLoop was constructing difference of abstraction (36states) and FLOYD_HOARE automaton (currently 34 states, 49 states before enhancement),while executing Executor. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 16 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 80.9s, OverallIterations: 5, TraceHistogramMax: 22, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 77.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 100 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 100 mSDsluCounter, 636 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 565 mSDsCounter, 15 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 837 IncrementalHoareTripleChecker+Invalid, 852 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 15 mSolverCounterUnsat, 71 mSDtfsCounter, 837 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 220 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 111 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 73.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=36occurred in iteration=4, InterpolantAutomatonStates: 45, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 28 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.2s InterpolantComputationTime, 155 NumberOfCodeBlocks, 155 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 215 ConstructedInterpolants, 0 QuantifiedInterpolants, 643 SizeOfPredicates, 0 NumberOfNonLiveVariables, 315 ConjunctsInSsa, 86 ConjunctsInUnsatCore, 13 InterpolantComputations, 1 PerfectInterpolantSequences, 0/957 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