/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.vis_arrays_vsa16a_p6.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 20:02:01,992 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 20:02:02,079 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 20:02:02,085 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 20:02:02,086 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 20:02:02,120 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 20:02:02,121 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 20:02:02,121 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 20:02:02,122 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 20:02:02,126 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 20:02:02,126 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 20:02:02,127 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 20:02:02,127 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 20:02:02,128 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 20:02:02,129 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 20:02:02,129 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 20:02:02,129 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 20:02:02,129 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-16 20:02:02,130 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 20:02:02,130 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 20:02:02,130 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 20:02:02,131 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 20:02:02,131 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 20:02:02,131 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 20:02:02,131 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 20:02:02,132 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 20:02:02,132 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 20:02:02,132 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 20:02:02,133 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 20:02:02,133 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 20:02:02,134 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 20:02:02,134 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 20:02:02,135 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 20:02:02,135 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-16 20:02:02,135 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-16 20:02:02,135 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 20:02:02,135 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 20:02:02,135 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 20:02:02,136 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 20:02:02,136 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 20:02:02,136 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-16 20:02:02,401 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 20:02:02,430 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 20:02:02,432 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 20:02:02,434 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 20:02:02,434 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 20:02:02,435 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsa16a_p6.c [2023-12-16 20:02:03,673 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 20:02:04,020 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 20:02:04,020 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsa16a_p6.c [2023-12-16 20:02:04,040 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b0bf7bec7/939a7842d9034af4b8e45a33c660aa2b/FLAG43a6175cc [2023-12-16 20:02:04,055 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b0bf7bec7/939a7842d9034af4b8e45a33c660aa2b [2023-12-16 20:02:04,057 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 20:02:04,058 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 20:02:04,059 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 20:02:04,059 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 20:02:04,066 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 20:02:04,067 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 08:02:04" (1/1) ... [2023-12-16 20:02:04,068 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7942ce95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:02:04, skipping insertion in model container [2023-12-16 20:02:04,068 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 08:02:04" (1/1) ... [2023-12-16 20:02:04,127 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 20:02:04,297 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.vis_arrays_vsa16a_p6.c[1260,1273] [2023-12-16 20:02:04,684 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 20:02:04,693 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 20:02:04,703 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.vis_arrays_vsa16a_p6.c[1260,1273] [2023-12-16 20:02:04,880 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 20:02:04,895 INFO L206 MainTranslator]: Completed translation [2023-12-16 20:02:04,896 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:02:04 WrapperNode [2023-12-16 20:02:04,896 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 20:02:04,898 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 20:02:04,898 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 20:02:04,898 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 20:02:04,903 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:02:04" (1/1) ... [2023-12-16 20:02:04,977 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:02:04" (1/1) ... [2023-12-16 20:02:05,442 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 5210 [2023-12-16 20:02:05,442 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 20:02:05,443 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 20:02:05,443 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 20:02:05,443 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 20:02:05,453 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:02:04" (1/1) ... [2023-12-16 20:02:05,453 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:02:04" (1/1) ... [2023-12-16 20:02:05,565 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:02:04" (1/1) ... [2023-12-16 20:02:05,818 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 20:02:05,819 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:02:04" (1/1) ... [2023-12-16 20:02:05,819 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:02:04" (1/1) ... [2023-12-16 20:02:05,983 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:02:04" (1/1) ... [2023-12-16 20:02:06,017 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:02:04" (1/1) ... [2023-12-16 20:02:06,063 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:02:04" (1/1) ... [2023-12-16 20:02:06,089 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:02:04" (1/1) ... [2023-12-16 20:02:06,207 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 20:02:06,209 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 20:02:06,209 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 20:02:06,209 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 20:02:06,210 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:02:04" (1/1) ... [2023-12-16 20:02:06,216 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 20:02:06,225 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 20:02:06,238 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 20:02:06,294 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 20:02:06,313 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 20:02:06,313 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-16 20:02:06,314 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 20:02:06,314 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 20:02:06,664 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 20:02:06,666 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 20:02:09,547 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 20:02:09,644 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 20:02:09,645 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 20:02:09,645 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 08:02:09 BoogieIcfgContainer [2023-12-16 20:02:09,646 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 20:02:09,648 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 20:02:09,648 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 20:02:09,651 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 20:02:09,651 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 08:02:04" (1/3) ... [2023-12-16 20:02:09,652 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@424d529a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 08:02:09, skipping insertion in model container [2023-12-16 20:02:09,652 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:02:04" (2/3) ... [2023-12-16 20:02:09,652 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@424d529a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 08:02:09, skipping insertion in model container [2023-12-16 20:02:09,653 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 08:02:09" (3/3) ... [2023-12-16 20:02:09,654 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vis_arrays_vsa16a_p6.c [2023-12-16 20:02:09,670 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 20:02:09,670 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 20:02:09,738 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 20:02:09,745 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;@71eea2a0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 20:02:09,745 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 20:02:09,754 INFO L276 IsEmpty]: Start isEmpty. Operand has 1020 states, 1018 states have (on average 1.6669941060903732) internal successors, (1697), 1019 states have internal predecessors, (1697), 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 20:02:09,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-12-16 20:02:09,766 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 20:02:09,767 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] [2023-12-16 20:02:09,767 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 20:02:09,773 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 20:02:09,774 INFO L85 PathProgramCache]: Analyzing trace with hash 1119984543, now seen corresponding path program 1 times [2023-12-16 20:02:09,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 20:02:09,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1556166365] [2023-12-16 20:02:09,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 20:02:09,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 20:02:10,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 20:02:10,698 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 20:02:10,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 20:02:10,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1556166365] [2023-12-16 20:02:10,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1556166365] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 20:02:10,700 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 20:02:10,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 20:02:10,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416016630] [2023-12-16 20:02:10,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 20:02:10,708 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 20:02:10,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 20:02:10,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 20:02:10,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 20:02:10,740 INFO L87 Difference]: Start difference. First operand has 1020 states, 1018 states have (on average 1.6669941060903732) internal successors, (1697), 1019 states have internal predecessors, (1697), 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 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 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 20:02:10,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 20:02:10,868 INFO L93 Difference]: Finished difference Result 2017 states and 3360 transitions. [2023-12-16 20:02:10,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 20:02:10,878 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 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 50 [2023-12-16 20:02:10,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 20:02:10,896 INFO L225 Difference]: With dead ends: 2017 [2023-12-16 20:02:10,896 INFO L226 Difference]: Without dead ends: 1037 [2023-12-16 20:02:10,902 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 20:02:10,905 INFO L413 NwaCegarLoop]: 1719 mSDtfsCounter, 1625 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1625 SdHoareTripleChecker+Valid, 1814 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 20:02:10,906 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1625 Valid, 1814 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 20:02:10,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1037 states. [2023-12-16 20:02:11,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1037 to 1018. [2023-12-16 20:02:11,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1018 states, 1017 states have (on average 1.663716814159292) internal successors, (1692), 1017 states have internal predecessors, (1692), 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 20:02:11,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1018 states to 1018 states and 1692 transitions. [2023-12-16 20:02:11,015 INFO L78 Accepts]: Start accepts. Automaton has 1018 states and 1692 transitions. Word has length 50 [2023-12-16 20:02:11,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 20:02:11,016 INFO L495 AbstractCegarLoop]: Abstraction has 1018 states and 1692 transitions. [2023-12-16 20:02:11,016 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 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 20:02:11,016 INFO L276 IsEmpty]: Start isEmpty. Operand 1018 states and 1692 transitions. [2023-12-16 20:02:11,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-12-16 20:02:11,018 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 20:02:11,018 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] [2023-12-16 20:02:11,018 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-16 20:02:11,018 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 20:02:11,019 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 20:02:11,019 INFO L85 PathProgramCache]: Analyzing trace with hash 1545658587, now seen corresponding path program 1 times [2023-12-16 20:02:11,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 20:02:11,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732805206] [2023-12-16 20:02:11,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 20:02:11,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 20:02:11,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 20:02:11,354 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 20:02:11,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 20:02:11,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1732805206] [2023-12-16 20:02:11,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1732805206] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 20:02:11,355 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 20:02:11,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 20:02:11,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448255647] [2023-12-16 20:02:11,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 20:02:11,358 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 20:02:11,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 20:02:11,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 20:02:11,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 20:02:11,363 INFO L87 Difference]: Start difference. First operand 1018 states and 1692 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 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 20:02:11,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 20:02:11,427 INFO L93 Difference]: Finished difference Result 1022 states and 1696 transitions. [2023-12-16 20:02:11,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 20:02:11,428 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 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 51 [2023-12-16 20:02:11,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 20:02:11,432 INFO L225 Difference]: With dead ends: 1022 [2023-12-16 20:02:11,433 INFO L226 Difference]: Without dead ends: 1020 [2023-12-16 20:02:11,434 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 20:02:11,435 INFO L413 NwaCegarLoop]: 1689 mSDtfsCounter, 1 mSDsluCounter, 3373 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 5062 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 20:02:11,435 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 5062 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 20:02:11,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1020 states. [2023-12-16 20:02:11,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1020 to 1020. [2023-12-16 20:02:11,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1020 states, 1019 states have (on average 1.662414131501472) internal successors, (1694), 1019 states have internal predecessors, (1694), 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 20:02:11,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1020 states to 1020 states and 1694 transitions. [2023-12-16 20:02:11,458 INFO L78 Accepts]: Start accepts. Automaton has 1020 states and 1694 transitions. Word has length 51 [2023-12-16 20:02:11,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 20:02:11,459 INFO L495 AbstractCegarLoop]: Abstraction has 1020 states and 1694 transitions. [2023-12-16 20:02:11,459 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 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 20:02:11,459 INFO L276 IsEmpty]: Start isEmpty. Operand 1020 states and 1694 transitions. [2023-12-16 20:02:11,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-12-16 20:02:11,462 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 20:02:11,463 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] [2023-12-16 20:02:11,463 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-16 20:02:11,463 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 20:02:11,471 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 20:02:11,471 INFO L85 PathProgramCache]: Analyzing trace with hash 672501165, now seen corresponding path program 1 times [2023-12-16 20:02:11,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 20:02:11,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576724727] [2023-12-16 20:02:11,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 20:02:11,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 20:02:11,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 20:02:11,651 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 20:02:11,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 20:02:11,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576724727] [2023-12-16 20:02:11,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1576724727] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 20:02:11,653 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 20:02:11,653 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 20:02:11,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448176123] [2023-12-16 20:02:11,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 20:02:11,654 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 20:02:11,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 20:02:11,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 20:02:11,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 20:02:11,657 INFO L87 Difference]: Start difference. First operand 1020 states and 1694 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 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 20:02:11,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 20:02:11,714 INFO L93 Difference]: Finished difference Result 2003 states and 3326 transitions. [2023-12-16 20:02:11,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 20:02:11,715 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 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 52 [2023-12-16 20:02:11,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 20:02:11,719 INFO L225 Difference]: With dead ends: 2003 [2023-12-16 20:02:11,719 INFO L226 Difference]: Without dead ends: 1023 [2023-12-16 20:02:11,722 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 20:02:11,723 INFO L413 NwaCegarLoop]: 1689 mSDtfsCounter, 1 mSDsluCounter, 3371 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 5060 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 20:02:11,723 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 5060 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 20:02:11,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1023 states. [2023-12-16 20:02:11,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1023 to 1022. [2023-12-16 20:02:11,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1022 states, 1021 states have (on average 1.6611165523996083) internal successors, (1696), 1021 states have internal predecessors, (1696), 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 20:02:11,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1022 states to 1022 states and 1696 transitions. [2023-12-16 20:02:11,744 INFO L78 Accepts]: Start accepts. Automaton has 1022 states and 1696 transitions. Word has length 52 [2023-12-16 20:02:11,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 20:02:11,745 INFO L495 AbstractCegarLoop]: Abstraction has 1022 states and 1696 transitions. [2023-12-16 20:02:11,746 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 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 20:02:11,747 INFO L276 IsEmpty]: Start isEmpty. Operand 1022 states and 1696 transitions. [2023-12-16 20:02:11,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-12-16 20:02:11,754 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 20:02:11,757 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] [2023-12-16 20:02:11,757 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-16 20:02:11,757 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 20:02:11,757 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 20:02:11,757 INFO L85 PathProgramCache]: Analyzing trace with hash 937274807, now seen corresponding path program 1 times [2023-12-16 20:02:11,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 20:02:11,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009205928] [2023-12-16 20:02:11,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 20:02:11,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 20:02:11,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 20:02:12,264 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 20:02:12,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 20:02:12,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1009205928] [2023-12-16 20:02:12,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1009205928] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 20:02:12,265 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 20:02:12,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 20:02:12,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390275397] [2023-12-16 20:02:12,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 20:02:12,265 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 20:02:12,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 20:02:12,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 20:02:12,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 20:02:12,266 INFO L87 Difference]: Start difference. First operand 1022 states and 1696 transitions. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 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 20:02:12,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 20:02:12,543 INFO L93 Difference]: Finished difference Result 3977 states and 6597 transitions. [2023-12-16 20:02:12,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-16 20:02:12,544 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 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 53 [2023-12-16 20:02:12,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 20:02:12,555 INFO L225 Difference]: With dead ends: 3977 [2023-12-16 20:02:12,556 INFO L226 Difference]: Without dead ends: 2995 [2023-12-16 20:02:12,559 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2023-12-16 20:02:12,564 INFO L413 NwaCegarLoop]: 1716 mSDtfsCounter, 8104 mSDsluCounter, 8522 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8104 SdHoareTripleChecker+Valid, 10238 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 20:02:12,565 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8104 Valid, 10238 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 20:02:12,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2995 states. [2023-12-16 20:02:12,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2995 to 1030. [2023-12-16 20:02:12,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1030 states, 1029 states have (on average 1.6588921282798834) internal successors, (1707), 1029 states have internal predecessors, (1707), 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 20:02:12,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1030 states to 1030 states and 1707 transitions. [2023-12-16 20:02:12,601 INFO L78 Accepts]: Start accepts. Automaton has 1030 states and 1707 transitions. Word has length 53 [2023-12-16 20:02:12,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 20:02:12,602 INFO L495 AbstractCegarLoop]: Abstraction has 1030 states and 1707 transitions. [2023-12-16 20:02:12,602 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 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 20:02:12,602 INFO L276 IsEmpty]: Start isEmpty. Operand 1030 states and 1707 transitions. [2023-12-16 20:02:12,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-12-16 20:02:12,605 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 20:02:12,605 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] [2023-12-16 20:02:12,605 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-16 20:02:12,605 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 20:02:12,606 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 20:02:12,606 INFO L85 PathProgramCache]: Analyzing trace with hash -1512985325, now seen corresponding path program 1 times [2023-12-16 20:02:12,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 20:02:12,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665934831] [2023-12-16 20:02:12,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 20:02:12,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 20:02:12,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 20:02:13,022 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 20:02:13,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 20:02:13,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665934831] [2023-12-16 20:02:13,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1665934831] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 20:02:13,023 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 20:02:13,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 20:02:13,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118165779] [2023-12-16 20:02:13,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 20:02:13,024 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 20:02:13,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 20:02:13,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 20:02:13,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-16 20:02:13,025 INFO L87 Difference]: Start difference. First operand 1030 states and 1707 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 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 20:02:13,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 20:02:13,223 INFO L93 Difference]: Finished difference Result 3030 states and 5021 transitions. [2023-12-16 20:02:13,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 20:02:13,225 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 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 54 [2023-12-16 20:02:13,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 20:02:13,234 INFO L225 Difference]: With dead ends: 3030 [2023-12-16 20:02:13,234 INFO L226 Difference]: Without dead ends: 2040 [2023-12-16 20:02:13,236 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-12-16 20:02:13,236 INFO L413 NwaCegarLoop]: 1709 mSDtfsCounter, 6544 mSDsluCounter, 3362 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6544 SdHoareTripleChecker+Valid, 5071 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 20:02:13,237 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6544 Valid, 5071 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 20:02:13,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2040 states. [2023-12-16 20:02:13,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2040 to 1054. [2023-12-16 20:02:13,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1054 states, 1053 states have (on average 1.6552706552706553) internal successors, (1743), 1053 states have internal predecessors, (1743), 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 20:02:13,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1054 states to 1054 states and 1743 transitions. [2023-12-16 20:02:13,263 INFO L78 Accepts]: Start accepts. Automaton has 1054 states and 1743 transitions. Word has length 54 [2023-12-16 20:02:13,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 20:02:13,264 INFO L495 AbstractCegarLoop]: Abstraction has 1054 states and 1743 transitions. [2023-12-16 20:02:13,264 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 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 20:02:13,264 INFO L276 IsEmpty]: Start isEmpty. Operand 1054 states and 1743 transitions. [2023-12-16 20:02:13,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-12-16 20:02:13,264 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 20:02:13,264 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] [2023-12-16 20:02:13,265 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-16 20:02:13,265 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 20:02:13,266 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 20:02:13,266 INFO L85 PathProgramCache]: Analyzing trace with hash -2099791339, now seen corresponding path program 1 times [2023-12-16 20:02:13,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 20:02:13,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47201544] [2023-12-16 20:02:13,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 20:02:13,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 20:02:13,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 20:02:14,001 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 20:02:14,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 20:02:14,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [47201544] [2023-12-16 20:02:14,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [47201544] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 20:02:14,001 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 20:02:14,001 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-16 20:02:14,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57750807] [2023-12-16 20:02:14,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 20:02:14,002 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-16 20:02:14,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 20:02:14,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-16 20:02:14,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-12-16 20:02:14,003 INFO L87 Difference]: Start difference. First operand 1054 states and 1743 transitions. Second operand has 9 states, 9 states have (on average 6.0) internal successors, (54), 8 states have internal predecessors, (54), 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 20:02:14,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 20:02:14,843 INFO L93 Difference]: Finished difference Result 6898 states and 11439 transitions. [2023-12-16 20:02:14,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-16 20:02:14,844 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.0) internal successors, (54), 8 states have internal predecessors, (54), 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 54 [2023-12-16 20:02:14,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 20:02:14,866 INFO L225 Difference]: With dead ends: 6898 [2023-12-16 20:02:14,866 INFO L226 Difference]: Without dead ends: 5908 [2023-12-16 20:02:14,870 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=100, Invalid=280, Unknown=0, NotChecked=0, Total=380 [2023-12-16 20:02:14,870 INFO L413 NwaCegarLoop]: 3315 mSDtfsCounter, 16156 mSDsluCounter, 16542 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16156 SdHoareTripleChecker+Valid, 19857 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 20:02:14,871 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16156 Valid, 19857 Invalid, 238 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 236 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 20:02:14,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5908 states. [2023-12-16 20:02:14,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5908 to 1057. [2023-12-16 20:02:14,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1057 states, 1056 states have (on average 1.6543560606060606) internal successors, (1747), 1056 states have internal predecessors, (1747), 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 20:02:14,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1057 states to 1057 states and 1747 transitions. [2023-12-16 20:02:14,927 INFO L78 Accepts]: Start accepts. Automaton has 1057 states and 1747 transitions. Word has length 54 [2023-12-16 20:02:14,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 20:02:14,929 INFO L495 AbstractCegarLoop]: Abstraction has 1057 states and 1747 transitions. [2023-12-16 20:02:14,929 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.0) internal successors, (54), 8 states have internal predecessors, (54), 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 20:02:14,929 INFO L276 IsEmpty]: Start isEmpty. Operand 1057 states and 1747 transitions. [2023-12-16 20:02:14,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-12-16 20:02:14,930 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 20:02:14,930 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] [2023-12-16 20:02:14,930 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-16 20:02:14,930 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 20:02:14,931 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 20:02:14,931 INFO L85 PathProgramCache]: Analyzing trace with hash 650959827, now seen corresponding path program 1 times [2023-12-16 20:02:14,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 20:02:14,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072055701] [2023-12-16 20:02:14,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 20:02:14,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 20:02:14,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 20:02:15,095 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 20:02:15,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 20:02:15,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072055701] [2023-12-16 20:02:15,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2072055701] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 20:02:15,096 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 20:02:15,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 20:02:15,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556827755] [2023-12-16 20:02:15,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 20:02:15,096 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 20:02:15,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 20:02:15,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 20:02:15,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-16 20:02:15,097 INFO L87 Difference]: Start difference. First operand 1057 states and 1747 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 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 20:02:15,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 20:02:15,199 INFO L93 Difference]: Finished difference Result 3062 states and 5065 transitions. [2023-12-16 20:02:15,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 20:02:15,200 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 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 54 [2023-12-16 20:02:15,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 20:02:15,207 INFO L225 Difference]: With dead ends: 3062 [2023-12-16 20:02:15,207 INFO L226 Difference]: Without dead ends: 2068 [2023-12-16 20:02:15,209 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2023-12-16 20:02:15,210 INFO L413 NwaCegarLoop]: 1721 mSDtfsCounter, 3251 mSDsluCounter, 6718 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3251 SdHoareTripleChecker+Valid, 8439 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 20:02:15,210 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3251 Valid, 8439 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 20:02:15,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2068 states. [2023-12-16 20:02:15,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2068 to 1073. [2023-12-16 20:02:15,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1073 states, 1072 states have (on average 1.6520522388059702) internal successors, (1771), 1072 states have internal predecessors, (1771), 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 20:02:15,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1073 states to 1073 states and 1771 transitions. [2023-12-16 20:02:15,239 INFO L78 Accepts]: Start accepts. Automaton has 1073 states and 1771 transitions. Word has length 54 [2023-12-16 20:02:15,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 20:02:15,239 INFO L495 AbstractCegarLoop]: Abstraction has 1073 states and 1771 transitions. [2023-12-16 20:02:15,239 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 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 20:02:15,239 INFO L276 IsEmpty]: Start isEmpty. Operand 1073 states and 1771 transitions. [2023-12-16 20:02:15,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-12-16 20:02:15,240 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 20:02:15,240 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] [2023-12-16 20:02:15,240 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-16 20:02:15,240 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 20:02:15,241 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 20:02:15,241 INFO L85 PathProgramCache]: Analyzing trace with hash 457408167, now seen corresponding path program 1 times [2023-12-16 20:02:15,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 20:02:15,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691240585] [2023-12-16 20:02:15,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 20:02:15,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 20:02:15,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 20:02:15,621 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 20:02:15,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 20:02:15,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691240585] [2023-12-16 20:02:15,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [691240585] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 20:02:15,622 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 20:02:15,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-16 20:02:15,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687535100] [2023-12-16 20:02:15,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 20:02:15,622 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-16 20:02:15,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 20:02:15,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-16 20:02:15,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-12-16 20:02:15,623 INFO L87 Difference]: Start difference. First operand 1073 states and 1771 transitions. Second operand has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 8 states have internal predecessors, (55), 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 20:02:16,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 20:02:16,225 INFO L93 Difference]: Finished difference Result 5066 states and 8374 transitions. [2023-12-16 20:02:16,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-16 20:02:16,226 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 8 states have internal predecessors, (55), 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 55 [2023-12-16 20:02:16,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 20:02:16,242 INFO L225 Difference]: With dead ends: 5066 [2023-12-16 20:02:16,242 INFO L226 Difference]: Without dead ends: 4049 [2023-12-16 20:02:16,246 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=153, Invalid=447, Unknown=0, NotChecked=0, Total=600 [2023-12-16 20:02:16,248 INFO L413 NwaCegarLoop]: 1708 mSDtfsCounter, 16173 mSDsluCounter, 10196 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16173 SdHoareTripleChecker+Valid, 11904 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 20:02:16,248 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16173 Valid, 11904 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 20:02:16,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4049 states. [2023-12-16 20:02:16,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4049 to 1077. [2023-12-16 20:02:16,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1077 states, 1076 states have (on average 1.649628252788104) internal successors, (1775), 1076 states have internal predecessors, (1775), 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 20:02:16,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1077 states to 1077 states and 1775 transitions. [2023-12-16 20:02:16,296 INFO L78 Accepts]: Start accepts. Automaton has 1077 states and 1775 transitions. Word has length 55 [2023-12-16 20:02:16,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 20:02:16,296 INFO L495 AbstractCegarLoop]: Abstraction has 1077 states and 1775 transitions. [2023-12-16 20:02:16,297 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 8 states have internal predecessors, (55), 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 20:02:16,297 INFO L276 IsEmpty]: Start isEmpty. Operand 1077 states and 1775 transitions. [2023-12-16 20:02:16,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-12-16 20:02:16,297 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 20:02:16,297 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] [2023-12-16 20:02:16,298 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-16 20:02:16,298 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 20:02:16,298 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 20:02:16,298 INFO L85 PathProgramCache]: Analyzing trace with hash 1234362349, now seen corresponding path program 1 times [2023-12-16 20:02:16,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 20:02:16,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [674762781] [2023-12-16 20:02:16,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 20:02:16,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 20:02:16,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 20:02:16,705 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 20:02:16,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 20:02:16,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [674762781] [2023-12-16 20:02:16,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [674762781] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 20:02:16,706 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 20:02:16,706 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-16 20:02:16,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481629314] [2023-12-16 20:02:16,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 20:02:16,707 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-16 20:02:16,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 20:02:16,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-16 20:02:16,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2023-12-16 20:02:16,708 INFO L87 Difference]: Start difference. First operand 1077 states and 1775 transitions. Second operand has 10 states, 10 states have (on average 5.6) internal successors, (56), 9 states have internal predecessors, (56), 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 20:02:17,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 20:02:17,350 INFO L93 Difference]: Finished difference Result 5101 states and 8419 transitions. [2023-12-16 20:02:17,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-12-16 20:02:17,351 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.6) internal successors, (56), 9 states have internal predecessors, (56), 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 56 [2023-12-16 20:02:17,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 20:02:17,365 INFO L225 Difference]: With dead ends: 5101 [2023-12-16 20:02:17,365 INFO L226 Difference]: Without dead ends: 4082 [2023-12-16 20:02:17,368 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 159 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=213, Invalid=657, Unknown=0, NotChecked=0, Total=870 [2023-12-16 20:02:17,369 INFO L413 NwaCegarLoop]: 1712 mSDtfsCounter, 17827 mSDsluCounter, 11935 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17827 SdHoareTripleChecker+Valid, 13647 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 20:02:17,369 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17827 Valid, 13647 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 20:02:17,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4082 states. [2023-12-16 20:02:17,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4082 to 1083. [2023-12-16 20:02:17,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1083 states, 1082 states have (on average 1.6497227356746764) internal successors, (1785), 1082 states have internal predecessors, (1785), 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 20:02:17,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1083 states to 1083 states and 1785 transitions. [2023-12-16 20:02:17,411 INFO L78 Accepts]: Start accepts. Automaton has 1083 states and 1785 transitions. Word has length 56 [2023-12-16 20:02:17,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 20:02:17,412 INFO L495 AbstractCegarLoop]: Abstraction has 1083 states and 1785 transitions. [2023-12-16 20:02:17,412 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.6) internal successors, (56), 9 states have internal predecessors, (56), 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 20:02:17,412 INFO L276 IsEmpty]: Start isEmpty. Operand 1083 states and 1785 transitions. [2023-12-16 20:02:17,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-12-16 20:02:17,412 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 20:02:17,413 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] [2023-12-16 20:02:17,413 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-16 20:02:17,413 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 20:02:17,413 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 20:02:17,413 INFO L85 PathProgramCache]: Analyzing trace with hash 777612875, now seen corresponding path program 1 times [2023-12-16 20:02:17,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 20:02:17,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230322128] [2023-12-16 20:02:17,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 20:02:17,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 20:02:17,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 20:02:17,656 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 20:02:17,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 20:02:17,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [230322128] [2023-12-16 20:02:17,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [230322128] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 20:02:17,656 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 20:02:17,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 20:02:17,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593162866] [2023-12-16 20:02:17,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 20:02:17,657 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 20:02:17,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 20:02:17,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 20:02:17,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 20:02:17,658 INFO L87 Difference]: Start difference. First operand 1083 states and 1785 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 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) [2023-12-16 20:02:17,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 20:02:17,842 INFO L93 Difference]: Finished difference Result 3052 states and 5045 transitions. [2023-12-16 20:02:17,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 20:02:17,843 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 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) Word has length 57 [2023-12-16 20:02:17,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 20:02:17,866 INFO L225 Difference]: With dead ends: 3052 [2023-12-16 20:02:17,866 INFO L226 Difference]: Without dead ends: 2014 [2023-12-16 20:02:17,868 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-16 20:02:17,869 INFO L413 NwaCegarLoop]: 1672 mSDtfsCounter, 4880 mSDsluCounter, 3336 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4880 SdHoareTripleChecker+Valid, 5008 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 20:02:17,869 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4880 Valid, 5008 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 20:02:17,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2014 states. [2023-12-16 20:02:17,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2014 to 1064. [2023-12-16 20:02:17,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1064 states, 1063 states have (on average 1.650047036688617) internal successors, (1754), 1063 states have internal predecessors, (1754), 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 20:02:17,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1064 states to 1064 states and 1754 transitions. [2023-12-16 20:02:17,897 INFO L78 Accepts]: Start accepts. Automaton has 1064 states and 1754 transitions. Word has length 57 [2023-12-16 20:02:17,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 20:02:17,898 INFO L495 AbstractCegarLoop]: Abstraction has 1064 states and 1754 transitions. [2023-12-16 20:02:17,898 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 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) [2023-12-16 20:02:17,898 INFO L276 IsEmpty]: Start isEmpty. Operand 1064 states and 1754 transitions. [2023-12-16 20:02:17,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 707 [2023-12-16 20:02:17,910 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 20:02:17,910 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:02:17,910 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-16 20:02:17,910 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 20:02:17,911 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 20:02:17,911 INFO L85 PathProgramCache]: Analyzing trace with hash -1125200530, now seen corresponding path program 1 times [2023-12-16 20:02:17,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 20:02:17,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544229789] [2023-12-16 20:02:17,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 20:02:17,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 20:02:26,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 20:02:32,834 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 20:02:32,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 20:02:32,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544229789] [2023-12-16 20:02:32,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1544229789] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 20:02:32,835 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 20:02:32,835 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 20:02:32,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566462742] [2023-12-16 20:02:32,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 20:02:32,836 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 20:02:32,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 20:02:32,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 20:02:32,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 20:02:32,837 INFO L87 Difference]: Start difference. First operand 1064 states and 1754 transitions. Second operand has 5 states, 5 states have (on average 141.2) internal successors, (706), 4 states have internal predecessors, (706), 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 20:02:33,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 20:02:33,134 INFO L93 Difference]: Finished difference Result 3018 states and 4994 transitions. [2023-12-16 20:02:33,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 20:02:33,135 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 141.2) internal successors, (706), 4 states have internal predecessors, (706), 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 706 [2023-12-16 20:02:33,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 20:02:33,145 INFO L225 Difference]: With dead ends: 3018 [2023-12-16 20:02:33,145 INFO L226 Difference]: Without dead ends: 2015 [2023-12-16 20:02:33,148 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-16 20:02:33,148 INFO L413 NwaCegarLoop]: 1642 mSDtfsCounter, 4859 mSDsluCounter, 3282 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4859 SdHoareTripleChecker+Valid, 4924 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 20:02:33,148 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4859 Valid, 4924 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 20:02:33,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2015 states. [2023-12-16 20:02:33,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2015 to 1072. [2023-12-16 20:02:33,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1072 states, 1071 states have (on average 1.6451914098972922) internal successors, (1762), 1071 states have internal predecessors, (1762), 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 20:02:33,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1072 states to 1072 states and 1762 transitions. [2023-12-16 20:02:33,175 INFO L78 Accepts]: Start accepts. Automaton has 1072 states and 1762 transitions. Word has length 706 [2023-12-16 20:02:33,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 20:02:33,175 INFO L495 AbstractCegarLoop]: Abstraction has 1072 states and 1762 transitions. [2023-12-16 20:02:33,175 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 141.2) internal successors, (706), 4 states have internal predecessors, (706), 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 20:02:33,176 INFO L276 IsEmpty]: Start isEmpty. Operand 1072 states and 1762 transitions. [2023-12-16 20:02:33,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 708 [2023-12-16 20:02:33,188 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 20:02:33,189 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:02:33,189 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-16 20:02:33,189 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 20:02:33,189 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 20:02:33,190 INFO L85 PathProgramCache]: Analyzing trace with hash -437477768, now seen corresponding path program 1 times [2023-12-16 20:02:33,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 20:02:33,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590223141] [2023-12-16 20:02:33,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 20:02:33,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 20:02:39,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 20:02:42,826 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 20:02:42,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 20:02:42,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590223141] [2023-12-16 20:02:42,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1590223141] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 20:02:42,826 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 20:02:42,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 20:02:42,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757011492] [2023-12-16 20:02:42,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 20:02:42,827 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 20:02:42,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 20:02:42,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 20:02:42,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-16 20:02:42,829 INFO L87 Difference]: Start difference. First operand 1072 states and 1762 transitions. Second operand has 5 states, 5 states have (on average 141.4) internal successors, (707), 4 states have internal predecessors, (707), 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 20:02:43,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 20:02:43,124 INFO L93 Difference]: Finished difference Result 3018 states and 4993 transitions. [2023-12-16 20:02:43,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 20:02:43,125 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 141.4) internal successors, (707), 4 states have internal predecessors, (707), 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 707 [2023-12-16 20:02:43,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 20:02:43,129 INFO L225 Difference]: With dead ends: 3018 [2023-12-16 20:02:43,129 INFO L226 Difference]: Without dead ends: 2015 [2023-12-16 20:02:43,130 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-12-16 20:02:43,132 INFO L413 NwaCegarLoop]: 1645 mSDtfsCounter, 4830 mSDsluCounter, 3288 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4830 SdHoareTripleChecker+Valid, 4933 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 20:02:43,132 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4830 Valid, 4933 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 20:02:43,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2015 states. [2023-12-16 20:02:43,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2015 to 1073. [2023-12-16 20:02:43,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1073 states, 1072 states have (on average 1.6445895522388059) internal successors, (1763), 1072 states have internal predecessors, (1763), 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 20:02:43,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1073 states to 1073 states and 1763 transitions. [2023-12-16 20:02:43,156 INFO L78 Accepts]: Start accepts. Automaton has 1073 states and 1763 transitions. Word has length 707 [2023-12-16 20:02:43,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 20:02:43,157 INFO L495 AbstractCegarLoop]: Abstraction has 1073 states and 1763 transitions. [2023-12-16 20:02:43,157 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 141.4) internal successors, (707), 4 states have internal predecessors, (707), 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 20:02:43,157 INFO L276 IsEmpty]: Start isEmpty. Operand 1073 states and 1763 transitions. [2023-12-16 20:02:43,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 708 [2023-12-16 20:02:43,170 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 20:02:43,170 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:02:43,170 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-16 20:02:43,170 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 20:02:43,171 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 20:02:43,171 INFO L85 PathProgramCache]: Analyzing trace with hash 707842810, now seen corresponding path program 1 times [2023-12-16 20:02:43,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 20:02:43,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052254786] [2023-12-16 20:02:43,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 20:02:43,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms Received shutdown request... [2023-12-16 20:02:51,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2023-12-16 20:02:52,005 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 20:02:52,006 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-16 20:02:52,006 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 708 with TraceHistMax 2,while AutomatonFreeRefinementEngine was Timeout during feasibility check between IpTcStrategyModuleSmtInterpolCraig [2052254786] and IpTcStrategyModuleZ3 [495039390]. [2023-12-16 20:02:52,008 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 20:02:52,011 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 20:02:52,013 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 20:02:52,015 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 08:02:52 BoogieIcfgContainer [2023-12-16 20:02:52,016 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 20:02:52,016 INFO L158 Benchmark]: Toolchain (without parser) took 47958.12ms. Allocated memory was 281.0MB in the beginning and 1.4GB in the end (delta: 1.2GB). Free memory was 229.7MB in the beginning and 967.9MB in the end (delta: -738.1MB). Peak memory consumption was 979.3MB. Max. memory is 8.0GB. [2023-12-16 20:02:52,016 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 190.8MB. Free memory is still 145.5MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 20:02:52,016 INFO L158 Benchmark]: CACSL2BoogieTranslator took 837.77ms. Allocated memory is still 281.0MB. Free memory was 229.7MB in the beginning and 229.1MB in the end (delta: 596.0kB). Peak memory consumption was 96.9MB. Max. memory is 8.0GB. [2023-12-16 20:02:52,017 INFO L158 Benchmark]: Boogie Procedure Inliner took 544.70ms. Allocated memory is still 281.0MB. Free memory was 228.6MB in the beginning and 158.1MB in the end (delta: 70.5MB). Peak memory consumption was 111.9MB. Max. memory is 8.0GB. [2023-12-16 20:02:52,017 INFO L158 Benchmark]: Boogie Preprocessor took 764.41ms. Allocated memory was 281.0MB in the beginning and 467.7MB in the end (delta: 186.6MB). Free memory was 158.1MB in the beginning and 303.3MB in the end (delta: -145.2MB). Peak memory consumption was 49.8MB. Max. memory is 8.0GB. [2023-12-16 20:02:52,018 INFO L158 Benchmark]: RCFGBuilder took 3437.39ms. Allocated memory was 467.7MB in the beginning and 804.3MB in the end (delta: 336.6MB). Free memory was 303.3MB in the beginning and 554.6MB in the end (delta: -251.2MB). Peak memory consumption was 143.3MB. Max. memory is 8.0GB. [2023-12-16 20:02:52,018 INFO L158 Benchmark]: TraceAbstraction took 42367.44ms. Allocated memory was 804.3MB in the beginning and 1.4GB in the end (delta: 633.3MB). Free memory was 553.5MB in the beginning and 967.9MB in the end (delta: -414.3MB). Peak memory consumption was 778.4MB. Max. memory is 8.0GB. [2023-12-16 20:02:52,019 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 190.8MB. Free memory is still 145.5MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 837.77ms. Allocated memory is still 281.0MB. Free memory was 229.7MB in the beginning and 229.1MB in the end (delta: 596.0kB). Peak memory consumption was 96.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 544.70ms. Allocated memory is still 281.0MB. Free memory was 228.6MB in the beginning and 158.1MB in the end (delta: 70.5MB). Peak memory consumption was 111.9MB. Max. memory is 8.0GB. * Boogie Preprocessor took 764.41ms. Allocated memory was 281.0MB in the beginning and 467.7MB in the end (delta: 186.6MB). Free memory was 158.1MB in the beginning and 303.3MB in the end (delta: -145.2MB). Peak memory consumption was 49.8MB. Max. memory is 8.0GB. * RCFGBuilder took 3437.39ms. Allocated memory was 467.7MB in the beginning and 804.3MB in the end (delta: 336.6MB). Free memory was 303.3MB in the beginning and 554.6MB in the end (delta: -251.2MB). Peak memory consumption was 143.3MB. Max. memory is 8.0GB. * TraceAbstraction took 42367.44ms. Allocated memory was 804.3MB in the beginning and 1.4GB in the end (delta: 633.3MB). Free memory was 553.5MB in the beginning and 967.9MB in the end (delta: -414.3MB). Peak memory consumption was 778.4MB. 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 708 with TraceHistMax 2,while AutomatonFreeRefinementEngine was Timeout during feasibility check between IpTcStrategyModuleSmtInterpolCraig [2052254786] and IpTcStrategyModuleZ3 [495039390]. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 1020 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 42.3s, OverallIterations: 13, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 4.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 84251 SdHoareTripleChecker+Valid, 1.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 84251 mSDsluCounter, 95957 SdHoareTripleChecker+Invalid, 1.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 74020 mSDsCounter, 15 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1053 IncrementalHoareTripleChecker+Invalid, 1068 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 15 mSolverCounterUnsat, 21937 mSDtfsCounter, 1053 mSolverCounterSat, 0.3s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 140 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 113 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 339 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1083occurred in iteration=9, InterpolantAutomatonStates: 112, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 12 MinimizatonAttempts, 17623 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 16.0s SatisfiabilityAnalysisTime, 12.3s InterpolantComputationTime, 1949 NumberOfCodeBlocks, 1949 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 1937 ConstructedInterpolants, 0 QuantifiedInterpolants, 4236 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 PerfectInterpolantSequences, 46/46 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