/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation false -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_codestructure_dependencies_file-10.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 02:35:43,088 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 02:35:43,155 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-16 02:35:43,159 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 02:35:43,159 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 02:35:43,181 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 02:35:43,182 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 02:35:43,182 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 02:35:43,183 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 02:35:43,186 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 02:35:43,186 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 02:35:43,187 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 02:35:43,187 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 02:35:43,188 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 02:35:43,188 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 02:35:43,188 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 02:35:43,189 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 02:35:43,189 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 02:35:43,189 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-16 02:35:43,189 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 02:35:43,189 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 02:35:43,190 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 02:35:43,190 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 02:35:43,190 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 02:35:43,190 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 02:35:43,190 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 02:35:43,190 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 02:35:43,191 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 02:35:43,191 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 02:35:43,191 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 02:35:43,192 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 02:35:43,192 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 02:35:43,192 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 02:35:43,192 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 02:35:43,193 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 02:35:43,193 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 02:35:43,193 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-16 02:35:43,193 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-16 02:35:43,193 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 02:35:43,193 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 02:35:43,193 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 02:35:43,194 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 02:35:43,194 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 02:35:43,194 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-16 02:35:43,381 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 02:35:43,394 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 02:35:43,396 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 02:35:43,396 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 02:35:43,397 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 02:35:43,397 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_codestructure_dependencies_file-10.i [2023-12-16 02:35:44,690 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 02:35:44,961 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 02:35:44,961 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_codestructure_dependencies_file-10.i [2023-12-16 02:35:44,972 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/662192f9d/bf8ae30641a5401ea5eb9ee6d96c4bbe/FLAG2bb9f05d6 [2023-12-16 02:35:44,991 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/662192f9d/bf8ae30641a5401ea5eb9ee6d96c4bbe [2023-12-16 02:35:44,996 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 02:35:44,997 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 02:35:44,997 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 02:35:44,998 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 02:35:45,003 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 02:35:45,004 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 02:35:44" (1/1) ... [2023-12-16 02:35:45,005 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28bbae5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:35:45, skipping insertion in model container [2023-12-16 02:35:45,005 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 02:35:44" (1/1) ... [2023-12-16 02:35:45,025 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 02:35:45,188 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_codestructure_dependencies_file-10.i[919,932] [2023-12-16 02:35:45,249 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 02:35:45,274 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 02:35:45,292 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_codestructure_dependencies_file-10.i[919,932] [2023-12-16 02:35:45,325 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 02:35:45,335 INFO L206 MainTranslator]: Completed translation [2023-12-16 02:35:45,336 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:35:45 WrapperNode [2023-12-16 02:35:45,336 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 02:35:45,337 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 02:35:45,337 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 02:35:45,337 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 02:35:45,342 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:35:45" (1/1) ... [2023-12-16 02:35:45,349 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:35:45" (1/1) ... [2023-12-16 02:35:45,397 INFO L138 Inliner]: procedures = 26, calls = 31, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 147 [2023-12-16 02:35:45,398 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 02:35:45,398 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 02:35:45,398 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 02:35:45,398 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 02:35:45,406 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:35:45" (1/1) ... [2023-12-16 02:35:45,406 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:35:45" (1/1) ... [2023-12-16 02:35:45,410 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:35:45" (1/1) ... [2023-12-16 02:35:45,428 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 02:35:45,429 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:35:45" (1/1) ... [2023-12-16 02:35:45,429 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:35:45" (1/1) ... [2023-12-16 02:35:45,445 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:35:45" (1/1) ... [2023-12-16 02:35:45,448 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:35:45" (1/1) ... [2023-12-16 02:35:45,450 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:35:45" (1/1) ... [2023-12-16 02:35:45,451 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:35:45" (1/1) ... [2023-12-16 02:35:45,454 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 02:35:45,454 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 02:35:45,455 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 02:35:45,455 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 02:35:45,455 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:35:45" (1/1) ... [2023-12-16 02:35:45,466 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 02:35:45,474 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 02:35:45,493 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 02:35:45,535 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 02:35:45,563 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 02:35:45,564 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-16 02:35:45,564 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-16 02:35:45,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-16 02:35:45,565 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 02:35:45,565 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 02:35:45,657 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 02:35:45,659 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 02:35:46,061 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 02:35:46,162 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 02:35:46,162 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 02:35:46,163 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 02:35:46 BoogieIcfgContainer [2023-12-16 02:35:46,163 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 02:35:46,164 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 02:35:46,164 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 02:35:46,166 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 02:35:46,167 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 02:35:44" (1/3) ... [2023-12-16 02:35:46,167 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c38005f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 02:35:46, skipping insertion in model container [2023-12-16 02:35:46,167 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:35:45" (2/3) ... [2023-12-16 02:35:46,167 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c38005f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 02:35:46, skipping insertion in model container [2023-12-16 02:35:46,167 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 02:35:46" (3/3) ... [2023-12-16 02:35:46,184 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_codestructure_dependencies_file-10.i [2023-12-16 02:35:46,197 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 02:35:46,197 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 02:35:46,255 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 02:35:46,276 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;@53070b2d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 02:35:46,277 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 02:35:46,281 INFO L276 IsEmpty]: Start isEmpty. Operand has 56 states, 35 states have (on average 1.4857142857142858) internal successors, (52), 36 states have internal predecessors, (52), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-12-16 02:35:46,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-12-16 02:35:46,303 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 02:35:46,303 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:35:46,304 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 02:35:46,316 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 02:35:46,317 INFO L85 PathProgramCache]: Analyzing trace with hash 2061579833, now seen corresponding path program 1 times [2023-12-16 02:35:46,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 02:35:46,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776287194] [2023-12-16 02:35:46,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 02:35:46,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 02:35:46,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:35:47,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 02:35:47,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:35:47,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-16 02:35:47,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:35:47,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-16 02:35:47,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:35:47,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-16 02:35:47,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:35:47,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-16 02:35:47,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:35:47,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-16 02:35:47,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:35:47,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-16 02:35:47,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:35:47,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-16 02:35:47,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:35:47,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-16 02:35:47,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:35:47,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-16 02:35:47,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:35:47,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-16 02:35:47,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:35:47,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 02:35:47,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:35:47,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 02:35:47,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:35:47,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-16 02:35:47,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:35:47,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-16 02:35:47,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:35:47,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-16 02:35:47,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:35:47,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-12-16 02:35:47,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:35:47,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-12-16 02:35:47,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:35:47,229 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-12-16 02:35:47,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 02:35:47,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [776287194] [2023-12-16 02:35:47,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [776287194] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 02:35:47,230 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 02:35:47,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 02:35:47,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911704729] [2023-12-16 02:35:47,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 02:35:47,235 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 02:35:47,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 02:35:47,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 02:35:47,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 02:35:47,256 INFO L87 Difference]: Start difference. First operand has 56 states, 35 states have (on average 1.4857142857142858) internal successors, (52), 36 states have internal predecessors, (52), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-16 02:35:47,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 02:35:47,473 INFO L93 Difference]: Finished difference Result 163 states and 299 transitions. [2023-12-16 02:35:47,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 02:35:47,476 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 115 [2023-12-16 02:35:47,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 02:35:47,485 INFO L225 Difference]: With dead ends: 163 [2023-12-16 02:35:47,485 INFO L226 Difference]: Without dead ends: 108 [2023-12-16 02:35:47,488 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 02:35:47,504 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 51 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 229 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 02:35:47,505 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 229 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 02:35:47,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2023-12-16 02:35:47,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 87. [2023-12-16 02:35:47,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 48 states have (on average 1.2708333333333333) internal successors, (61), 48 states have internal predecessors, (61), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2023-12-16 02:35:47,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 133 transitions. [2023-12-16 02:35:47,543 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 133 transitions. Word has length 115 [2023-12-16 02:35:47,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 02:35:47,544 INFO L495 AbstractCegarLoop]: Abstraction has 87 states and 133 transitions. [2023-12-16 02:35:47,544 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-16 02:35:47,544 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 133 transitions. [2023-12-16 02:35:47,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-12-16 02:35:47,547 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 02:35:47,547 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:35:47,547 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-16 02:35:47,548 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 02:35:47,548 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 02:35:47,548 INFO L85 PathProgramCache]: Analyzing trace with hash 1856233364, now seen corresponding path program 1 times [2023-12-16 02:35:47,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 02:35:47,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267123611] [2023-12-16 02:35:47,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 02:35:47,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 02:35:47,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:36:39,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 02:36:39,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:36:39,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-16 02:36:39,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:36:39,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-16 02:36:39,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:36:39,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-16 02:36:39,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:36:39,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-16 02:36:39,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:36:39,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-16 02:36:39,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:36:39,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-16 02:36:39,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:36:39,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-16 02:36:39,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:36:39,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-16 02:36:39,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:36:39,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-16 02:36:39,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:36:39,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-16 02:36:39,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:36:39,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 02:36:39,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:36:39,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 02:36:39,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:36:39,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-16 02:36:39,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:36:39,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-16 02:36:39,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:36:39,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-16 02:36:39,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:36:39,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-12-16 02:36:39,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:36:39,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-12-16 02:36:39,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:36:39,840 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-12-16 02:36:39,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 02:36:39,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267123611] [2023-12-16 02:36:39,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [267123611] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 02:36:39,845 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 02:36:39,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-16 02:36:39,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873683692] [2023-12-16 02:36:39,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 02:36:39,847 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-16 02:36:39,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 02:36:39,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-16 02:36:39,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2023-12-16 02:36:39,851 INFO L87 Difference]: Start difference. First operand 87 states and 133 transitions. Second operand has 12 states, 12 states have (on average 2.4166666666666665) internal successors, (29), 12 states have internal predecessors, (29), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-16 02:36:44,830 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 02:36:49,923 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 02:36:55,113 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.09s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 02:36:57,796 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 02:36:59,628 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 02:37:00,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 02:37:00,148 INFO L93 Difference]: Finished difference Result 212 states and 316 transitions. [2023-12-16 02:37:00,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-16 02:37:00,170 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.4166666666666665) internal successors, (29), 12 states have internal predecessors, (29), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 116 [2023-12-16 02:37:00,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 02:37:00,172 INFO L225 Difference]: With dead ends: 212 [2023-12-16 02:37:00,172 INFO L226 Difference]: Without dead ends: 159 [2023-12-16 02:37:00,173 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 10.1s TimeCoverageRelationStatistics Valid=174, Invalid=378, Unknown=0, NotChecked=0, Total=552 [2023-12-16 02:37:00,173 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 333 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 504 mSolverCounterSat, 11 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 333 SdHoareTripleChecker+Valid, 324 SdHoareTripleChecker+Invalid, 517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 504 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.8s IncrementalHoareTripleChecker+Time [2023-12-16 02:37:00,174 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [333 Valid, 324 Invalid, 517 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 504 Invalid, 2 Unknown, 0 Unchecked, 15.8s Time] [2023-12-16 02:37:00,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2023-12-16 02:37:00,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 99. [2023-12-16 02:37:00,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 60 states have (on average 1.3166666666666667) internal successors, (79), 60 states have internal predecessors, (79), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2023-12-16 02:37:00,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 151 transitions. [2023-12-16 02:37:00,190 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 151 transitions. Word has length 116 [2023-12-16 02:37:00,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 02:37:00,190 INFO L495 AbstractCegarLoop]: Abstraction has 99 states and 151 transitions. [2023-12-16 02:37:00,190 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.4166666666666665) internal successors, (29), 12 states have internal predecessors, (29), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-16 02:37:00,190 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 151 transitions. [2023-12-16 02:37:00,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-12-16 02:37:00,204 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 02:37:00,204 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:37:00,204 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-16 02:37:00,204 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 02:37:00,205 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 02:37:00,205 INFO L85 PathProgramCache]: Analyzing trace with hash -663726570, now seen corresponding path program 1 times [2023-12-16 02:37:00,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 02:37:00,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266383935] [2023-12-16 02:37:00,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 02:37:00,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 02:37:00,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat Received shutdown request... [2023-12-16 02:37:06,982 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 02:37:06,982 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-16 02:37:06,982 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 117 with TraceHistMax 18,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PolyPacSimplificationTermWalker was simplifying a ∧-2-2-5-2-4-3-2-5-4-3-3-5-2-2-1 term,while PolyPacSimplificationTermWalker was simplifying 4 xjuncts wrt. a ∧-17-3-3-5-3-3-5-2-2-1 context. [2023-12-16 02:37:06,987 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-12-16 02:37:06,990 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 02:37:07,001 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 02:37:07,012 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 02:37:07 BoogieIcfgContainer [2023-12-16 02:37:07,012 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 02:37:07,015 INFO L158 Benchmark]: Toolchain (without parser) took 82016.36ms. Allocated memory was 204.5MB in the beginning and 752.9MB in the end (delta: 548.4MB). Free memory was 161.6MB in the beginning and 617.7MB in the end (delta: -456.1MB). Peak memory consumption was 447.3MB. Max. memory is 8.0GB. [2023-12-16 02:37:07,015 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 164.6MB. Free memory is still 113.2MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 02:37:07,019 INFO L158 Benchmark]: CACSL2BoogieTranslator took 338.69ms. Allocated memory is still 204.5MB. Free memory was 161.1MB in the beginning and 146.9MB in the end (delta: 14.2MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2023-12-16 02:37:07,019 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.16ms. Allocated memory is still 204.5MB. Free memory was 146.9MB in the beginning and 142.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-16 02:37:07,020 INFO L158 Benchmark]: Boogie Preprocessor took 55.64ms. Allocated memory is still 204.5MB. Free memory was 142.7MB in the beginning and 135.4MB in the end (delta: 7.3MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. [2023-12-16 02:37:07,020 INFO L158 Benchmark]: RCFGBuilder took 708.40ms. Allocated memory is still 204.5MB. Free memory was 135.4MB in the beginning and 111.8MB in the end (delta: 23.6MB). Peak memory consumption was 24.1MB. Max. memory is 8.0GB. [2023-12-16 02:37:07,021 INFO L158 Benchmark]: TraceAbstraction took 80848.20ms. Allocated memory was 204.5MB in the beginning and 752.9MB in the end (delta: 548.4MB). Free memory was 111.3MB in the beginning and 617.7MB in the end (delta: -506.4MB). Peak memory consumption was 397.0MB. Max. memory is 8.0GB. [2023-12-16 02:37:07,022 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 164.6MB. Free memory is still 113.2MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 338.69ms. Allocated memory is still 204.5MB. Free memory was 161.1MB in the beginning and 146.9MB in the end (delta: 14.2MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 61.16ms. Allocated memory is still 204.5MB. Free memory was 146.9MB in the beginning and 142.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 55.64ms. Allocated memory is still 204.5MB. Free memory was 142.7MB in the beginning and 135.4MB in the end (delta: 7.3MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. * RCFGBuilder took 708.40ms. Allocated memory is still 204.5MB. Free memory was 135.4MB in the beginning and 111.8MB in the end (delta: 23.6MB). Peak memory consumption was 24.1MB. Max. memory is 8.0GB. * TraceAbstraction took 80848.20ms. Allocated memory was 204.5MB in the beginning and 752.9MB in the end (delta: 548.4MB). Free memory was 111.3MB in the beginning and 617.7MB in the end (delta: -506.4MB). Peak memory consumption was 397.0MB. 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: 19]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 19). Cancelled while NwaCegarLoop was analyzing trace of length 117 with TraceHistMax 18,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PolyPacSimplificationTermWalker was simplifying a ∧-2-2-5-2-4-3-2-5-4-3-3-5-2-2-1 term,while PolyPacSimplificationTermWalker was simplifying 4 xjuncts wrt. a ∧-17-3-3-5-3-3-5-2-2-1 context. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 56 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 80.8s, OverallIterations: 3, TraceHistogramMax: 18, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 20.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2 mSolverCounterUnknown, 384 SdHoareTripleChecker+Valid, 16.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 384 mSDsluCounter, 553 SdHoareTripleChecker+Invalid, 15.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 410 mSDsCounter, 66 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 522 IncrementalHoareTripleChecker+Invalid, 590 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 66 mSolverCounterUnsat, 143 mSDtfsCounter, 522 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 104 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 10.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=99occurred in iteration=2, InterpolantAutomatonStates: 20, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 81 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 52.7s InterpolantComputationTime, 231 NumberOfCodeBlocks, 231 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 229 ConstructedInterpolants, 0 QuantifiedInterpolants, 6159 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 1224/1224 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