/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/ldv-regression/rule57_ebda_blast.c_1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-21 03:12:27,550 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-21 03:12:27,633 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-21 03:12:27,637 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-21 03:12:27,638 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-21 03:12:27,664 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-21 03:12:27,665 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-21 03:12:27,665 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-21 03:12:27,666 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-21 03:12:27,669 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-21 03:12:27,669 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-21 03:12:27,670 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-21 03:12:27,670 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-21 03:12:27,671 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-21 03:12:27,671 INFO L153 SettingsManager]: * Use SBE=true [2023-12-21 03:12:27,671 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-21 03:12:27,672 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-21 03:12:27,672 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-21 03:12:27,672 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-21 03:12:27,672 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-21 03:12:27,673 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-21 03:12:27,674 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-21 03:12:27,674 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-21 03:12:27,674 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-21 03:12:27,674 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-21 03:12:27,675 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-21 03:12:27,675 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-21 03:12:27,675 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-21 03:12:27,675 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-21 03:12:27,676 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-21 03:12:27,676 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-21 03:12:27,677 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-21 03:12:27,677 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-21 03:12:27,677 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-21 03:12:27,677 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-21 03:12:27,677 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-21 03:12:27,677 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-21 03:12:27,677 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-21 03:12:27,678 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-21 03:12:27,678 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-21 03:12:27,678 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-21 03:12:27,678 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-21 03:12:27,679 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-21 03:12:27,679 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-21 03:12:27,895 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-21 03:12:27,917 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-21 03:12:27,919 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-21 03:12:27,920 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-21 03:12:27,920 INFO L274 PluginConnector]: CDTParser initialized [2023-12-21 03:12:27,921 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/rule57_ebda_blast.c_1.i [2023-12-21 03:12:29,071 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-21 03:12:29,295 INFO L384 CDTParser]: Found 1 translation units. [2023-12-21 03:12:29,296 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/rule57_ebda_blast.c_1.i [2023-12-21 03:12:29,303 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fb3ab540e/3fb82ee376064463ad36884f4c07e1d7/FLAGa42099f7f [2023-12-21 03:12:29,317 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fb3ab540e/3fb82ee376064463ad36884f4c07e1d7 [2023-12-21 03:12:29,319 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-21 03:12:29,320 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-21 03:12:29,323 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-21 03:12:29,323 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-21 03:12:29,327 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-21 03:12:29,328 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 03:12:29" (1/1) ... [2023-12-21 03:12:29,328 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2fa6aca4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:12:29, skipping insertion in model container [2023-12-21 03:12:29,329 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 03:12:29" (1/1) ... [2023-12-21 03:12:29,362 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-21 03:12:29,480 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/rule57_ebda_blast.c_1.i[303,316] [2023-12-21 03:12:29,504 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-21 03:12:29,520 INFO L202 MainTranslator]: Completed pre-run [2023-12-21 03:12:29,529 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/rule57_ebda_blast.c_1.i[303,316] [2023-12-21 03:12:29,543 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-21 03:12:29,571 INFO L206 MainTranslator]: Completed translation [2023-12-21 03:12:29,571 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:12:29 WrapperNode [2023-12-21 03:12:29,571 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-21 03:12:29,576 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-21 03:12:29,576 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-21 03:12:29,576 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-21 03:12:29,582 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:12:29" (1/1) ... [2023-12-21 03:12:29,588 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:12:29" (1/1) ... [2023-12-21 03:12:29,608 INFO L138 Inliner]: procedures = 24, calls = 26, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 101 [2023-12-21 03:12:29,608 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-21 03:12:29,609 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-21 03:12:29,609 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-21 03:12:29,609 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-21 03:12:29,621 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:12:29" (1/1) ... [2023-12-21 03:12:29,621 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:12:29" (1/1) ... [2023-12-21 03:12:29,632 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:12:29" (1/1) ... [2023-12-21 03:12:29,660 INFO L175 MemorySlicer]: Split 10 memory accesses to 2 slices as follows [2, 8]. 80 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 7 writes are split as follows [0, 7]. [2023-12-21 03:12:29,660 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:12:29" (1/1) ... [2023-12-21 03:12:29,660 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:12:29" (1/1) ... [2023-12-21 03:12:29,665 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:12:29" (1/1) ... [2023-12-21 03:12:29,667 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:12:29" (1/1) ... [2023-12-21 03:12:29,668 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:12:29" (1/1) ... [2023-12-21 03:12:29,674 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:12:29" (1/1) ... [2023-12-21 03:12:29,679 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-21 03:12:29,680 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-21 03:12:29,680 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-21 03:12:29,681 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-21 03:12:29,681 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:12:29" (1/1) ... [2023-12-21 03:12:29,688 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-21 03:12:29,699 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 03:12:29,713 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) [2023-12-21 03:12:29,734 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 [2023-12-21 03:12:29,742 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-12-21 03:12:29,743 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-12-21 03:12:29,743 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-21 03:12:29,743 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-12-21 03:12:29,743 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-12-21 03:12:29,743 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-21 03:12:29,743 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-12-21 03:12:29,745 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-12-21 03:12:29,745 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-12-21 03:12:29,745 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-12-21 03:12:29,745 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-12-21 03:12:29,746 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-12-21 03:12:29,746 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2023-12-21 03:12:29,746 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2023-12-21 03:12:29,746 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-21 03:12:29,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-21 03:12:29,822 INFO L241 CfgBuilder]: Building ICFG [2023-12-21 03:12:29,824 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-21 03:12:30,008 INFO L282 CfgBuilder]: Performing block encoding [2023-12-21 03:12:30,045 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-21 03:12:30,045 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-21 03:12:30,046 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 03:12:30 BoogieIcfgContainer [2023-12-21 03:12:30,046 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-21 03:12:30,048 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-21 03:12:30,048 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-21 03:12:30,050 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-21 03:12:30,050 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 03:12:29" (1/3) ... [2023-12-21 03:12:30,051 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@233e604f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 03:12:30, skipping insertion in model container [2023-12-21 03:12:30,051 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:12:29" (2/3) ... [2023-12-21 03:12:30,051 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@233e604f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 03:12:30, skipping insertion in model container [2023-12-21 03:12:30,051 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 03:12:30" (3/3) ... [2023-12-21 03:12:30,052 INFO L112 eAbstractionObserver]: Analyzing ICFG rule57_ebda_blast.c_1.i [2023-12-21 03:12:30,065 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-21 03:12:30,065 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-21 03:12:30,099 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-21 03:12:30,104 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;@1908f208, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-21 03:12:30,104 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-21 03:12:30,109 INFO L276 IsEmpty]: Start isEmpty. Operand has 30 states, 21 states have (on average 1.4285714285714286) internal successors, (30), 23 states have internal predecessors, (30), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-12-21 03:12:30,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-12-21 03:12:30,118 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 03:12:30,118 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 03:12:30,119 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 03:12:30,124 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 03:12:30,124 INFO L85 PathProgramCache]: Analyzing trace with hash 256811059, now seen corresponding path program 1 times [2023-12-21 03:12:30,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 03:12:30,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890559552] [2023-12-21 03:12:30,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 03:12:30,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 03:12:30,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 03:12:30,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 03:12:30,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 03:12:30,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 03:12:30,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 03:12:30,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [890559552] [2023-12-21 03:12:30,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [890559552] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 03:12:30,430 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 03:12:30,430 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 03:12:30,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452879553] [2023-12-21 03:12:30,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 03:12:30,436 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 03:12:30,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 03:12:30,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 03:12:30,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-21 03:12:30,466 INFO L87 Difference]: Start difference. First operand has 30 states, 21 states have (on average 1.4285714285714286) internal successors, (30), 23 states have internal predecessors, (30), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 6 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-21 03:12:30,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 03:12:30,575 INFO L93 Difference]: Finished difference Result 38 states and 49 transitions. [2023-12-21 03:12:30,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-21 03:12:30,578 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2023-12-21 03:12:30,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 03:12:30,584 INFO L225 Difference]: With dead ends: 38 [2023-12-21 03:12:30,584 INFO L226 Difference]: Without dead ends: 28 [2023-12-21 03:12:30,587 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-21 03:12:30,589 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 18 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 03:12:30,590 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 97 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 03:12:30,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2023-12-21 03:12:30,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2023-12-21 03:12:30,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 20 states have (on average 1.25) internal successors, (25), 21 states have internal predecessors, (25), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-12-21 03:12:30,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 35 transitions. [2023-12-21 03:12:30,626 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 35 transitions. Word has length 11 [2023-12-21 03:12:30,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 03:12:30,628 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 35 transitions. [2023-12-21 03:12:30,628 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-21 03:12:30,630 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 35 transitions. [2023-12-21 03:12:30,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-12-21 03:12:30,632 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 03:12:30,632 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 03:12:30,633 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-21 03:12:30,633 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 03:12:30,635 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 03:12:30,635 INFO L85 PathProgramCache]: Analyzing trace with hash 1042899808, now seen corresponding path program 1 times [2023-12-21 03:12:30,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 03:12:30,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570922509] [2023-12-21 03:12:30,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 03:12:30,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 03:12:30,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 03:12:30,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 03:12:30,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 03:12:30,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-12-21 03:12:30,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 03:12:30,890 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-21 03:12:30,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 03:12:30,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570922509] [2023-12-21 03:12:30,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [570922509] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 03:12:30,891 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 03:12:30,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 03:12:30,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502577728] [2023-12-21 03:12:30,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 03:12:30,893 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 03:12:30,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 03:12:30,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 03:12:30,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-21 03:12:30,894 INFO L87 Difference]: Start difference. First operand 28 states and 35 transitions. Second operand has 6 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-21 03:12:30,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 03:12:30,999 INFO L93 Difference]: Finished difference Result 36 states and 41 transitions. [2023-12-21 03:12:30,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-21 03:12:30,999 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 16 [2023-12-21 03:12:31,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 03:12:31,000 INFO L225 Difference]: With dead ends: 36 [2023-12-21 03:12:31,001 INFO L226 Difference]: Without dead ends: 30 [2023-12-21 03:12:31,001 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-12-21 03:12:31,002 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 27 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 03:12:31,002 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 81 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 03:12:31,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2023-12-21 03:12:31,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2023-12-21 03:12:31,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 21 states have (on average 1.1904761904761905) internal successors, (25), 21 states have internal predecessors, (25), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-12-21 03:12:31,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 35 transitions. [2023-12-21 03:12:31,009 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 35 transitions. Word has length 16 [2023-12-21 03:12:31,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 03:12:31,010 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 35 transitions. [2023-12-21 03:12:31,010 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-21 03:12:31,010 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 35 transitions. [2023-12-21 03:12:31,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-12-21 03:12:31,011 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 03:12:31,011 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 03:12:31,011 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-21 03:12:31,011 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 03:12:31,012 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 03:12:31,012 INFO L85 PathProgramCache]: Analyzing trace with hash 1499609064, now seen corresponding path program 1 times [2023-12-21 03:12:31,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 03:12:31,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805261054] [2023-12-21 03:12:31,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 03:12:31,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 03:12:31,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 03:12:31,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 03:12:31,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 03:12:31,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-12-21 03:12:31,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 03:12:31,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-12-21 03:12:31,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 03:12:31,150 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-21 03:12:31,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 03:12:31,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805261054] [2023-12-21 03:12:31,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1805261054] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 03:12:31,151 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 03:12:31,151 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 03:12:31,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42265341] [2023-12-21 03:12:31,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 03:12:31,152 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 03:12:31,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 03:12:31,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 03:12:31,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 03:12:31,153 INFO L87 Difference]: Start difference. First operand 30 states and 35 transitions. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-12-21 03:12:31,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 03:12:31,213 INFO L93 Difference]: Finished difference Result 42 states and 47 transitions. [2023-12-21 03:12:31,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 03:12:31,213 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 22 [2023-12-21 03:12:31,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 03:12:31,215 INFO L225 Difference]: With dead ends: 42 [2023-12-21 03:12:31,215 INFO L226 Difference]: Without dead ends: 28 [2023-12-21 03:12:31,216 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-21 03:12:31,218 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 13 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 03:12:31,224 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 59 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 03:12:31,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2023-12-21 03:12:31,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2023-12-21 03:12:31,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 19 states have (on average 1.0526315789473684) internal successors, (20), 19 states have internal predecessors, (20), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-12-21 03:12:31,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 30 transitions. [2023-12-21 03:12:31,237 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 30 transitions. Word has length 22 [2023-12-21 03:12:31,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 03:12:31,237 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 30 transitions. [2023-12-21 03:12:31,238 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-12-21 03:12:31,238 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 30 transitions. [2023-12-21 03:12:31,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-12-21 03:12:31,240 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 03:12:31,240 INFO L195 NwaCegarLoop]: trace histogram [3, 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] [2023-12-21 03:12:31,240 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-21 03:12:31,241 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 03:12:31,241 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 03:12:31,241 INFO L85 PathProgramCache]: Analyzing trace with hash -543580867, now seen corresponding path program 1 times [2023-12-21 03:12:31,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 03:12:31,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794075574] [2023-12-21 03:12:31,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 03:12:31,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 03:12:31,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 03:12:31,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 03:12:31,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 03:12:31,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-12-21 03:12:31,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 03:12:31,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-12-21 03:12:31,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 03:12:31,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 03:12:31,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 03:12:31,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-12-21 03:12:31,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 03:12:31,426 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-12-21 03:12:31,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 03:12:31,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [794075574] [2023-12-21 03:12:31,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [794075574] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 03:12:31,427 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 03:12:31,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 03:12:31,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687647066] [2023-12-21 03:12:31,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 03:12:31,430 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 03:12:31,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 03:12:31,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 03:12:31,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-21 03:12:31,432 INFO L87 Difference]: Start difference. First operand 28 states and 30 transitions. Second operand has 7 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 03:12:31,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 03:12:31,486 INFO L93 Difference]: Finished difference Result 28 states and 30 transitions. [2023-12-21 03:12:31,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-21 03:12:31,486 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) Word has length 33 [2023-12-21 03:12:31,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 03:12:31,487 INFO L225 Difference]: With dead ends: 28 [2023-12-21 03:12:31,487 INFO L226 Difference]: Without dead ends: 0 [2023-12-21 03:12:31,490 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-12-21 03:12:31,493 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 1 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 03:12:31,494 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 35 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 03:12:31,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-21 03:12:31,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-21 03:12:31,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2023-12-21 03:12:31,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-21 03:12:31,495 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 33 [2023-12-21 03:12:31,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 03:12:31,495 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-21 03:12:31,496 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 03:12:31,496 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-21 03:12:31,496 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-21 03:12:31,500 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-21 03:12:31,501 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-21 03:12:31,502 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-21 03:12:31,543 INFO L899 garLoopResultBuilder]: For program point L51-2(lines 50 53) no Hoare annotation was computed. [2023-12-21 03:12:31,543 INFO L899 garLoopResultBuilder]: For program point kfreeEXIT(lines 50 53) no Hoare annotation was computed. [2023-12-21 03:12:31,544 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 50 53) the Hoare annotation is: true [2023-12-21 03:12:31,544 INFO L899 garLoopResultBuilder]: For program point L51(lines 51 52) no Hoare annotation was computed. [2023-12-21 03:12:31,545 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(line 48) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |#memory_int#1| |old(#memory_int#1)|) (= |old(#valid)| |#valid|)) [2023-12-21 03:12:31,545 INFO L899 garLoopResultBuilder]: For program point kzallocEXIT(line 48) no Hoare annotation was computed. [2023-12-21 03:12:31,545 INFO L895 garLoopResultBuilder]: At program point L85(line 85) the Hoare annotation is: (not (= |ULTIMATE.start_ebda_rsrc_controller_~hp_slot_ptr~0#1.base| 0)) [2023-12-21 03:12:31,545 INFO L899 garLoopResultBuilder]: For program point L85-1(line 85) no Hoare annotation was computed. [2023-12-21 03:12:31,545 INFO L899 garLoopResultBuilder]: For program point L135(lines 135 139) no Hoare annotation was computed. [2023-12-21 03:12:31,546 INFO L895 garLoopResultBuilder]: At program point L127(line 127) the Hoare annotation is: (and (not (= ~tmp_slot~0.base 0)) (not (= |ULTIMATE.start_ebda_rsrc_controller_~hp_slot_ptr~0#1.base| 0)) (= ~used_tmp_slot~0 1)) [2023-12-21 03:12:31,546 INFO L899 garLoopResultBuilder]: For program point L127-1(lines 72 133) no Hoare annotation was computed. [2023-12-21 03:12:31,546 INFO L899 garLoopResultBuilder]: For program point ebda_rsrc_controller_returnLabel#1(lines 72 133) no Hoare annotation was computed. [2023-12-21 03:12:31,546 INFO L895 garLoopResultBuilder]: At program point L57(line 57) the Hoare annotation is: (and (not (= ~tmp_slot~0.base 0)) (not (= |ULTIMATE.start_ebda_rsrc_controller_~hp_slot_ptr~0#1.base| 0))) [2023-12-21 03:12:31,546 INFO L899 garLoopResultBuilder]: For program point L57-1(line 57) no Hoare annotation was computed. [2023-12-21 03:12:31,547 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2023-12-21 03:12:31,547 INFO L902 garLoopResultBuilder]: At program point L78(line 78) the Hoare annotation is: true [2023-12-21 03:12:31,547 INFO L899 garLoopResultBuilder]: For program point L78-1(line 78) no Hoare annotation was computed. [2023-12-21 03:12:31,547 INFO L899 garLoopResultBuilder]: For program point L8(line 8) no Hoare annotation was computed. [2023-12-21 03:12:31,547 INFO L895 garLoopResultBuilder]: At program point L103(line 103) the Hoare annotation is: false [2023-12-21 03:12:31,547 INFO L899 garLoopResultBuilder]: For program point L103-1(line 103) no Hoare annotation was computed. [2023-12-21 03:12:31,547 INFO L899 garLoopResultBuilder]: For program point L99(lines 99 107) no Hoare annotation was computed. [2023-12-21 03:12:31,548 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-12-21 03:12:31,548 INFO L899 garLoopResultBuilder]: For program point L87(lines 87 90) no Hoare annotation was computed. [2023-12-21 03:12:31,548 INFO L899 garLoopResultBuilder]: For program point L79(lines 79 82) no Hoare annotation was computed. [2023-12-21 03:12:31,548 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-12-21 03:12:31,548 INFO L899 garLoopResultBuilder]: For program point L137(lines 137 138) no Hoare annotation was computed. [2023-12-21 03:12:31,548 INFO L899 garLoopResultBuilder]: For program point ebda_rsrc_controller_error#1(lines 72 133) no Hoare annotation was computed. [2023-12-21 03:12:31,548 INFO L899 garLoopResultBuilder]: For program point L121(lines 121 122) no Hoare annotation was computed. [2023-12-21 03:12:31,548 INFO L899 garLoopResultBuilder]: For program point L117(lines 117 118) no Hoare annotation was computed. [2023-12-21 03:12:31,548 INFO L899 garLoopResultBuilder]: For program point L138(line 138) no Hoare annotation was computed. [2023-12-21 03:12:31,551 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-12-21 03:12:31,553 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-21 03:12:31,556 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.12 03:12:31 BoogieIcfgContainer [2023-12-21 03:12:31,557 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-21 03:12:31,557 INFO L158 Benchmark]: Toolchain (without parser) took 2236.66ms. Allocated memory was 208.7MB in the beginning and 314.6MB in the end (delta: 105.9MB). Free memory was 152.1MB in the beginning and 168.8MB in the end (delta: -16.8MB). Peak memory consumption was 89.8MB. Max. memory is 8.0GB. [2023-12-21 03:12:31,557 INFO L158 Benchmark]: CDTParser took 0.48ms. Allocated memory is still 208.7MB. Free memory is still 160.8MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-21 03:12:31,557 INFO L158 Benchmark]: CACSL2BoogieTranslator took 248.33ms. Allocated memory is still 208.7MB. Free memory was 151.8MB in the beginning and 140.3MB in the end (delta: 11.5MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2023-12-21 03:12:31,558 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.25ms. Allocated memory is still 208.7MB. Free memory was 140.3MB in the beginning and 138.5MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-21 03:12:31,558 INFO L158 Benchmark]: Boogie Preprocessor took 70.66ms. Allocated memory is still 208.7MB. Free memory was 138.5MB in the beginning and 136.1MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-21 03:12:31,558 INFO L158 Benchmark]: RCFGBuilder took 365.48ms. Allocated memory was 208.7MB in the beginning and 314.6MB in the end (delta: 105.9MB). Free memory was 135.9MB in the beginning and 278.9MB in the end (delta: -143.0MB). Peak memory consumption was 18.4MB. Max. memory is 8.0GB. [2023-12-21 03:12:31,558 INFO L158 Benchmark]: TraceAbstraction took 1509.00ms. Allocated memory is still 314.6MB. Free memory was 278.4MB in the beginning and 168.8MB in the end (delta: 109.6MB). Peak memory consumption was 109.1MB. Max. memory is 8.0GB. [2023-12-21 03:12:31,560 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.48ms. Allocated memory is still 208.7MB. Free memory is still 160.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 248.33ms. Allocated memory is still 208.7MB. Free memory was 151.8MB in the beginning and 140.3MB in the end (delta: 11.5MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 32.25ms. Allocated memory is still 208.7MB. Free memory was 140.3MB in the beginning and 138.5MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 70.66ms. Allocated memory is still 208.7MB. Free memory was 138.5MB in the beginning and 136.1MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 365.48ms. Allocated memory was 208.7MB in the beginning and 314.6MB in the end (delta: 105.9MB). Free memory was 135.9MB in the beginning and 278.9MB in the end (delta: -143.0MB). Peak memory consumption was 18.4MB. Max. memory is 8.0GB. * TraceAbstraction took 1509.00ms. Allocated memory is still 314.6MB. Free memory was 278.4MB in the beginning and 168.8MB in the end (delta: 109.6MB). Peak memory consumption was 109.1MB. 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 - PositiveResult [Line: 8]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 30 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.5s, OverallIterations: 4, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 67 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 59 mSDsluCounter, 272 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 190 mSDsCounter, 13 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 184 IncrementalHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 13 mSolverCounterUnsat, 82 mSDtfsCounter, 184 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 42 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=30occurred in iteration=0, InterpolantAutomatonStates: 25, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 11 PreInvPairs, 12 NumberOfFragments, 38 HoareAnnotationTreeSize, 11 FormulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FormulaSimplificationsInter, 33 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 82 NumberOfCodeBlocks, 82 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 78 ConstructedInterpolants, 0 QuantifiedInterpolants, 198 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 18/18 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-12-21 03:12:31,591 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request...