./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-76.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-76.i -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 53f56ada378bb0c37d2572871baea3e6e471c6fc42badf64010dad779eb8adc8 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 13:10:07,802 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 13:10:07,892 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-11 13:10:07,897 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 13:10:07,898 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 13:10:07,929 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 13:10:07,930 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 13:10:07,930 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 13:10:07,931 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 13:10:07,931 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 13:10:07,932 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 13:10:07,932 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 13:10:07,933 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 13:10:07,933 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 13:10:07,933 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 13:10:07,934 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 13:10:07,934 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 13:10:07,935 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 13:10:07,935 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 13:10:07,935 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 13:10:07,936 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 13:10:07,939 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 13:10:07,940 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 13:10:07,940 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 13:10:07,940 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 13:10:07,940 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 13:10:07,940 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 13:10:07,941 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 13:10:07,941 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 13:10:07,941 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 13:10:07,941 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 13:10:07,942 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 13:10:07,942 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 13:10:07,942 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 13:10:07,943 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 13:10:07,943 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 13:10:07,947 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 13:10:07,947 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 13:10:07,948 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 13:10:07,948 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 13:10:07,948 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 13:10:07,949 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 13:10:07,949 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-clean/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 53f56ada378bb0c37d2572871baea3e6e471c6fc42badf64010dad779eb8adc8 [2024-10-11 13:10:08,282 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 13:10:08,314 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 13:10:08,320 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 13:10:08,321 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 13:10:08,322 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 13:10:08,323 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-76.i [2024-10-11 13:10:09,797 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 13:10:10,005 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 13:10:10,006 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-76.i [2024-10-11 13:10:10,015 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/23828d98a/bc1dbd7770ee448f83c559efceaa3d59/FLAG7764e1fd0 [2024-10-11 13:10:10,028 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/23828d98a/bc1dbd7770ee448f83c559efceaa3d59 [2024-10-11 13:10:10,031 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 13:10:10,032 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 13:10:10,034 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 13:10:10,034 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 13:10:10,039 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 13:10:10,040 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 01:10:10" (1/1) ... [2024-10-11 13:10:10,041 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32a4b419 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 01:10:10, skipping insertion in model container [2024-10-11 13:10:10,041 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 01:10:10" (1/1) ... [2024-10-11 13:10:10,065 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 13:10:10,234 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-76.i[913,926] [2024-10-11 13:10:10,316 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 13:10:10,330 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 13:10:10,340 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-76.i[913,926] [2024-10-11 13:10:10,356 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 13:10:10,371 INFO L204 MainTranslator]: Completed translation [2024-10-11 13:10:10,371 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 01:10:10 WrapperNode [2024-10-11 13:10:10,371 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 13:10:10,372 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 13:10:10,372 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 13:10:10,372 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 13:10:10,378 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 01:10:10" (1/1) ... [2024-10-11 13:10:10,385 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 01:10:10" (1/1) ... [2024-10-11 13:10:10,408 INFO L138 Inliner]: procedures = 26, calls = 28, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 110 [2024-10-11 13:10:10,409 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 13:10:10,409 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 13:10:10,410 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 13:10:10,410 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 13:10:10,419 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 01:10:10" (1/1) ... [2024-10-11 13:10:10,420 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 01:10:10" (1/1) ... [2024-10-11 13:10:10,425 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 01:10:10" (1/1) ... [2024-10-11 13:10:10,439 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]. [2024-10-11 13:10:10,440 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 01:10:10" (1/1) ... [2024-10-11 13:10:10,440 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 01:10:10" (1/1) ... [2024-10-11 13:10:10,448 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 01:10:10" (1/1) ... [2024-10-11 13:10:10,451 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 01:10:10" (1/1) ... [2024-10-11 13:10:10,452 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 01:10:10" (1/1) ... [2024-10-11 13:10:10,453 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 01:10:10" (1/1) ... [2024-10-11 13:10:10,456 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 13:10:10,456 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 13:10:10,457 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 13:10:10,457 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 13:10:10,457 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 01:10:10" (1/1) ... [2024-10-11 13:10:10,464 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 13:10:10,476 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 13:10:10,492 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 13:10:10,497 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 13:10:10,543 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 13:10:10,543 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-11 13:10:10,544 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-11 13:10:10,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-11 13:10:10,544 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 13:10:10,545 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 13:10:10,626 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 13:10:10,628 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 13:10:10,888 INFO L? ?]: Removed 12 outVars from TransFormulas that were not future-live. [2024-10-11 13:10:10,889 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 13:10:10,938 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 13:10:10,939 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-11 13:10:10,939 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 01:10:10 BoogieIcfgContainer [2024-10-11 13:10:10,939 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 13:10:10,941 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 13:10:10,942 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 13:10:10,945 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 13:10:10,945 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 01:10:10" (1/3) ... [2024-10-11 13:10:10,947 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bc367a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 01:10:10, skipping insertion in model container [2024-10-11 13:10:10,947 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 01:10:10" (2/3) ... [2024-10-11 13:10:10,948 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bc367a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 01:10:10, skipping insertion in model container [2024-10-11 13:10:10,948 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 01:10:10" (3/3) ... [2024-10-11 13:10:10,949 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_normal_file-76.i [2024-10-11 13:10:10,966 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 13:10:10,967 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-11 13:10:11,040 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 13:10:11,049 INFO L333 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, 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;@4bfbd0a2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 13:10:11,050 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-11 13:10:11,055 INFO L276 IsEmpty]: Start isEmpty. Operand has 45 states, 27 states have (on average 1.4814814814814814) internal successors, (40), 28 states have internal predecessors, (40), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-10-11 13:10:11,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-10-11 13:10:11,066 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 13:10:11,067 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 13:10:11,068 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 13:10:11,074 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 13:10:11,074 INFO L85 PathProgramCache]: Analyzing trace with hash 726093493, now seen corresponding path program 1 times [2024-10-11 13:10:11,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 13:10:11,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780186966] [2024-10-11 13:10:11,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 13:10:11,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 13:10:11,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:10:11,385 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 13:10:11,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:10:11,395 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 13:10:11,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:10:11,401 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 13:10:11,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:10:11,411 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-11 13:10:11,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:10:11,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-11 13:10:11,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:10:11,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-11 13:10:11,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:10:11,439 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-11 13:10:11,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:10:11,445 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-11 13:10:11,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:10:11,450 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-11 13:10:11,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:10:11,456 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-11 13:10:11,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:10:11,466 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-11 13:10:11,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:10:11,473 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-11 13:10:11,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:10:11,482 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-11 13:10:11,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:10:11,494 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-11 13:10:11,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:10:11,504 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-11 13:10:11,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:10:11,510 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-10-11 13:10:11,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 13:10:11,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1780186966] [2024-10-11 13:10:11,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1780186966] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 13:10:11,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 13:10:11,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 13:10:11,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537793047] [2024-10-11 13:10:11,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 13:10:11,521 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-11 13:10:11,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 13:10:11,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-11 13:10:11,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-11 13:10:11,550 INFO L87 Difference]: Start difference. First operand has 45 states, 27 states have (on average 1.4814814814814814) internal successors, (40), 28 states have internal predecessors, (40), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Second operand has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-10-11 13:10:11,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 13:10:11,594 INFO L93 Difference]: Finished difference Result 87 states and 153 transitions. [2024-10-11 13:10:11,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-11 13:10:11,597 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 93 [2024-10-11 13:10:11,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 13:10:11,605 INFO L225 Difference]: With dead ends: 87 [2024-10-11 13:10:11,606 INFO L226 Difference]: Without dead ends: 43 [2024-10-11 13:10:11,609 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-11 13:10:11,616 INFO L432 NwaCegarLoop]: 61 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 13:10:11,619 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 61 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 13:10:11,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2024-10-11 13:10:11,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2024-10-11 13:10:11,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 26 states have (on average 1.3076923076923077) internal successors, (34), 26 states have internal predecessors, (34), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-10-11 13:10:11,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 64 transitions. [2024-10-11 13:10:11,658 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 64 transitions. Word has length 93 [2024-10-11 13:10:11,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 13:10:11,660 INFO L471 AbstractCegarLoop]: Abstraction has 43 states and 64 transitions. [2024-10-11 13:10:11,660 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-10-11 13:10:11,661 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 64 transitions. [2024-10-11 13:10:11,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-10-11 13:10:11,664 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 13:10:11,664 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 13:10:11,664 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 13:10:11,665 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 13:10:11,665 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 13:10:11,666 INFO L85 PathProgramCache]: Analyzing trace with hash 499233082, now seen corresponding path program 1 times [2024-10-11 13:10:11,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 13:10:11,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763003832] [2024-10-11 13:10:11,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 13:10:11,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 13:10:11,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:10:11,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 13:10:11,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:10:11,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 13:10:11,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:10:11,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 13:10:11,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:10:11,897 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-11 13:10:11,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:10:11,902 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-11 13:10:11,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:10:11,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-11 13:10:11,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:10:11,914 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-11 13:10:11,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:10:11,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-11 13:10:11,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:10:11,920 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-11 13:10:11,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:10:11,923 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-11 13:10:11,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:10:11,926 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-11 13:10:11,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:10:11,930 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-11 13:10:11,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:10:11,933 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-11 13:10:11,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:10:11,938 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-11 13:10:11,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:10:11,946 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-11 13:10:11,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:10:11,951 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-10-11 13:10:11,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 13:10:11,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763003832] [2024-10-11 13:10:11,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1763003832] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 13:10:11,952 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 13:10:11,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 13:10:11,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900520548] [2024-10-11 13:10:11,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 13:10:11,955 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 13:10:11,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 13:10:11,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 13:10:11,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 13:10:11,958 INFO L87 Difference]: Start difference. First operand 43 states and 64 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-10-11 13:10:11,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 13:10:11,993 INFO L93 Difference]: Finished difference Result 85 states and 127 transitions. [2024-10-11 13:10:11,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 13:10:11,995 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 94 [2024-10-11 13:10:11,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 13:10:11,998 INFO L225 Difference]: With dead ends: 85 [2024-10-11 13:10:11,999 INFO L226 Difference]: Without dead ends: 43 [2024-10-11 13:10:11,999 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 13:10:12,001 INFO L432 NwaCegarLoop]: 59 mSDtfsCounter, 0 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 13:10:12,002 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 117 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 13:10:12,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2024-10-11 13:10:12,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2024-10-11 13:10:12,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 26 states have (on average 1.2692307692307692) internal successors, (33), 26 states have internal predecessors, (33), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-10-11 13:10:12,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 63 transitions. [2024-10-11 13:10:12,019 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 63 transitions. Word has length 94 [2024-10-11 13:10:12,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 13:10:12,020 INFO L471 AbstractCegarLoop]: Abstraction has 43 states and 63 transitions. [2024-10-11 13:10:12,020 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-10-11 13:10:12,020 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 63 transitions. [2024-10-11 13:10:12,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-10-11 13:10:12,021 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 13:10:12,022 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 13:10:12,022 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 13:10:12,022 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 13:10:12,022 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 13:10:12,023 INFO L85 PathProgramCache]: Analyzing trace with hash 1179291452, now seen corresponding path program 1 times [2024-10-11 13:10:12,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 13:10:12,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355844574] [2024-10-11 13:10:12,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 13:10:12,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 13:10:12,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:10:12,158 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 13:10:12,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:10:12,162 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 13:10:12,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:10:12,165 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 13:10:12,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:10:12,167 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-11 13:10:12,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:10:12,171 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-11 13:10:12,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:10:12,174 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-11 13:10:12,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:10:12,177 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-11 13:10:12,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:10:12,180 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-11 13:10:12,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:10:12,183 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-11 13:10:12,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:10:12,188 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-11 13:10:12,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:10:12,193 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-11 13:10:12,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:10:12,197 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-11 13:10:12,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:10:12,200 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-11 13:10:12,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:10:12,203 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-11 13:10:12,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:10:12,207 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-11 13:10:12,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:10:12,212 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-10-11 13:10:12,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 13:10:12,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [355844574] [2024-10-11 13:10:12,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [355844574] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 13:10:12,213 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 13:10:12,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 13:10:12,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654165628] [2024-10-11 13:10:12,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 13:10:12,214 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 13:10:12,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 13:10:12,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 13:10:12,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 13:10:12,218 INFO L87 Difference]: Start difference. First operand 43 states and 63 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-10-11 13:10:12,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 13:10:12,249 INFO L93 Difference]: Finished difference Result 85 states and 125 transitions. [2024-10-11 13:10:12,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 13:10:12,250 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 94 [2024-10-11 13:10:12,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 13:10:12,252 INFO L225 Difference]: With dead ends: 85 [2024-10-11 13:10:12,254 INFO L226 Difference]: Without dead ends: 43 [2024-10-11 13:10:12,255 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 13:10:12,256 INFO L432 NwaCegarLoop]: 58 mSDtfsCounter, 0 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 13:10:12,258 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 112 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 13:10:12,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2024-10-11 13:10:12,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2024-10-11 13:10:12,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 26 states have (on average 1.2307692307692308) internal successors, (32), 26 states have internal predecessors, (32), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-10-11 13:10:12,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 62 transitions. [2024-10-11 13:10:12,265 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 62 transitions. Word has length 94 [2024-10-11 13:10:12,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 13:10:12,266 INFO L471 AbstractCegarLoop]: Abstraction has 43 states and 62 transitions. [2024-10-11 13:10:12,266 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-10-11 13:10:12,266 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 62 transitions. [2024-10-11 13:10:12,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-10-11 13:10:12,268 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 13:10:12,268 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 13:10:12,268 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-11 13:10:12,268 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 13:10:12,269 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 13:10:12,269 INFO L85 PathProgramCache]: Analyzing trace with hash 1951682934, now seen corresponding path program 1 times [2024-10-11 13:10:12,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 13:10:12,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821187992] [2024-10-11 13:10:12,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 13:10:12,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 13:10:12,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:10:12,336 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 13:10:12,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:10:12,338 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 13:10:12,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:10:12,342 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 13:10:12,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:10:12,345 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-11 13:10:12,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:10:12,348 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-11 13:10:12,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:10:12,351 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-11 13:10:12,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:10:12,354 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-11 13:10:12,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:10:12,357 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-11 13:10:12,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:10:12,362 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-11 13:10:12,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:10:12,366 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-11 13:10:12,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:10:12,370 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-11 13:10:12,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:10:12,374 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-11 13:10:12,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:10:12,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-11 13:10:12,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:10:12,383 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-11 13:10:12,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:10:12,385 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-11 13:10:12,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:10:12,390 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-10-11 13:10:12,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 13:10:12,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821187992] [2024-10-11 13:10:12,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1821187992] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 13:10:12,392 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 13:10:12,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 13:10:12,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923255801] [2024-10-11 13:10:12,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 13:10:12,393 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 13:10:12,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 13:10:12,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 13:10:12,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 13:10:12,394 INFO L87 Difference]: Start difference. First operand 43 states and 62 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-10-11 13:10:12,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 13:10:12,452 INFO L93 Difference]: Finished difference Result 123 states and 177 transitions. [2024-10-11 13:10:12,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 13:10:12,452 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 95 [2024-10-11 13:10:12,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 13:10:12,454 INFO L225 Difference]: With dead ends: 123 [2024-10-11 13:10:12,454 INFO L226 Difference]: Without dead ends: 81 [2024-10-11 13:10:12,455 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 13:10:12,456 INFO L432 NwaCegarLoop]: 64 mSDtfsCounter, 52 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 13:10:12,456 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 114 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 13:10:12,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2024-10-11 13:10:12,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 47. [2024-10-11 13:10:12,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 30 states have (on average 1.2) internal successors, (36), 30 states have internal predecessors, (36), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-10-11 13:10:12,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 66 transitions. [2024-10-11 13:10:12,465 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 66 transitions. Word has length 95 [2024-10-11 13:10:12,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 13:10:12,465 INFO L471 AbstractCegarLoop]: Abstraction has 47 states and 66 transitions. [2024-10-11 13:10:12,465 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-10-11 13:10:12,465 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 66 transitions. [2024-10-11 13:10:12,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-10-11 13:10:12,467 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 13:10:12,467 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 13:10:12,467 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-11 13:10:12,467 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 13:10:12,468 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 13:10:12,468 INFO L85 PathProgramCache]: Analyzing trace with hash 1953529976, now seen corresponding path program 1 times [2024-10-11 13:10:12,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 13:10:12,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758691164] [2024-10-11 13:10:12,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 13:10:12,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 13:10:12,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:10:14,214 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 13:10:14,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:10:14,218 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 13:10:14,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:10:14,219 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 13:10:14,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:10:14,221 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-11 13:10:14,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:10:14,223 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-11 13:10:14,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:10:14,225 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-11 13:10:14,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:10:14,227 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-11 13:10:14,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:10:14,229 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-11 13:10:14,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:10:14,235 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-11 13:10:14,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:10:14,238 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-11 13:10:14,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:10:14,244 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-11 13:10:14,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:10:14,247 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-11 13:10:14,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:10:14,249 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-11 13:10:14,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:10:14,253 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-11 13:10:14,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:10:14,255 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-11 13:10:14,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:10:14,257 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-10-11 13:10:14,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 13:10:14,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758691164] [2024-10-11 13:10:14,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1758691164] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 13:10:14,262 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 13:10:14,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 13:10:14,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653010686] [2024-10-11 13:10:14,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 13:10:14,262 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 13:10:14,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 13:10:14,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 13:10:14,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-11 13:10:14,264 INFO L87 Difference]: Start difference. First operand 47 states and 66 transitions. Second operand has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 states have internal predecessors, (23), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-10-11 13:10:14,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 13:10:14,531 INFO L93 Difference]: Finished difference Result 127 states and 170 transitions. [2024-10-11 13:10:14,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 13:10:14,532 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 states have internal predecessors, (23), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 95 [2024-10-11 13:10:14,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 13:10:14,534 INFO L225 Difference]: With dead ends: 127 [2024-10-11 13:10:14,536 INFO L226 Difference]: Without dead ends: 81 [2024-10-11 13:10:14,537 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2024-10-11 13:10:14,537 INFO L432 NwaCegarLoop]: 56 mSDtfsCounter, 71 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 13:10:14,538 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 173 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 13:10:14,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2024-10-11 13:10:14,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 69. [2024-10-11 13:10:14,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 48 states have (on average 1.1875) internal successors, (57), 49 states have internal predecessors, (57), 17 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (17), 16 states have call predecessors, (17), 17 states have call successors, (17) [2024-10-11 13:10:14,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 91 transitions. [2024-10-11 13:10:14,560 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 91 transitions. Word has length 95 [2024-10-11 13:10:14,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 13:10:14,560 INFO L471 AbstractCegarLoop]: Abstraction has 69 states and 91 transitions. [2024-10-11 13:10:14,561 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 states have internal predecessors, (23), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-10-11 13:10:14,561 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 91 transitions. [2024-10-11 13:10:14,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-10-11 13:10:14,562 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 13:10:14,562 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 13:10:14,563 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-11 13:10:14,563 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 13:10:14,563 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 13:10:14,563 INFO L85 PathProgramCache]: Analyzing trace with hash 363211042, now seen corresponding path program 1 times [2024-10-11 13:10:14,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 13:10:14,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534416586] [2024-10-11 13:10:14,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 13:10:14,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 13:10:14,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:10:14,763 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 13:10:14,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:10:14,766 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 13:10:14,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:10:14,771 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 13:10:14,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:10:14,773 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-11 13:10:14,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:10:14,775 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-11 13:10:14,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:10:14,779 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-11 13:10:14,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:10:14,816 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-11 13:10:14,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:10:14,824 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-11 13:10:14,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:10:14,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-11 13:10:14,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:10:14,833 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-11 13:10:14,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:10:14,837 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-11 13:10:14,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:10:14,841 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-11 13:10:14,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:10:14,846 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-11 13:10:14,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:10:14,850 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-11 13:10:14,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:10:14,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-11 13:10:14,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:10:14,861 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 15 proven. 27 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2024-10-11 13:10:14,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 13:10:14,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1534416586] [2024-10-11 13:10:14,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1534416586] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 13:10:14,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [937547664] [2024-10-11 13:10:14,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 13:10:14,862 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 13:10:14,862 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 13:10:14,866 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 13:10:14,871 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-11 13:10:14,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:10:14,981 INFO L255 TraceCheckSpWp]: Trace formula consists of 222 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-11 13:10:14,990 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 13:10:15,163 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 204 proven. 27 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2024-10-11 13:10:15,163 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 13:10:15,360 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 15 proven. 27 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2024-10-11 13:10:15,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [937547664] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 13:10:15,361 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 13:10:15,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 8 [2024-10-11 13:10:15,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833042600] [2024-10-11 13:10:15,362 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 13:10:15,362 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-11 13:10:15,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 13:10:15,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-11 13:10:15,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-10-11 13:10:15,364 INFO L87 Difference]: Start difference. First operand 69 states and 91 transitions. Second operand has 8 states, 8 states have (on average 4.125) internal successors, (33), 8 states have internal predecessors, (33), 2 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2024-10-11 13:10:15,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 13:10:15,759 INFO L93 Difference]: Finished difference Result 177 states and 229 transitions. [2024-10-11 13:10:15,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-10-11 13:10:15,760 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.125) internal successors, (33), 8 states have internal predecessors, (33), 2 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 96 [2024-10-11 13:10:15,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 13:10:15,765 INFO L225 Difference]: With dead ends: 177 [2024-10-11 13:10:15,765 INFO L226 Difference]: Without dead ends: 109 [2024-10-11 13:10:15,767 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 217 SyntacticMatches, 4 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=112, Invalid=230, Unknown=0, NotChecked=0, Total=342 [2024-10-11 13:10:15,768 INFO L432 NwaCegarLoop]: 57 mSDtfsCounter, 85 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 202 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 13:10:15,769 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 133 Invalid, 254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 202 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 13:10:15,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2024-10-11 13:10:15,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 64. [2024-10-11 13:10:15,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 42 states have (on average 1.0476190476190477) internal successors, (44), 43 states have internal predecessors, (44), 17 states have call successors, (17), 4 states have call predecessors, (17), 4 states have return successors, (17), 16 states have call predecessors, (17), 17 states have call successors, (17) [2024-10-11 13:10:15,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 78 transitions. [2024-10-11 13:10:15,796 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 78 transitions. Word has length 96 [2024-10-11 13:10:15,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 13:10:15,796 INFO L471 AbstractCegarLoop]: Abstraction has 64 states and 78 transitions. [2024-10-11 13:10:15,796 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.125) internal successors, (33), 8 states have internal predecessors, (33), 2 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2024-10-11 13:10:15,797 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 78 transitions. [2024-10-11 13:10:15,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-10-11 13:10:15,798 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 13:10:15,798 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 13:10:15,817 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-10-11 13:10:15,998 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,2 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 13:10:15,999 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 13:10:16,000 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 13:10:16,000 INFO L85 PathProgramCache]: Analyzing trace with hash -902098150, now seen corresponding path program 1 times [2024-10-11 13:10:16,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 13:10:16,000 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856426361] [2024-10-11 13:10:16,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 13:10:16,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 13:10:16,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:10:16,933 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 13:10:16,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:10:16,936 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 13:10:16,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:10:16,938 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 13:10:16,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:10:16,939 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-11 13:10:16,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:10:16,941 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-11 13:10:16,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:10:16,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-11 13:10:16,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:10:16,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-11 13:10:16,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:10:16,946 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-11 13:10:16,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:10:16,947 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-11 13:10:16,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:10:16,949 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-11 13:10:16,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:10:16,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-11 13:10:16,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:10:16,953 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-11 13:10:16,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:10:16,955 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-11 13:10:16,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:10:16,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-11 13:10:16,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:10:16,959 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-11 13:10:16,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:10:16,962 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-10-11 13:10:16,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 13:10:16,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1856426361] [2024-10-11 13:10:16,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1856426361] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 13:10:16,962 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 13:10:16,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 13:10:16,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899311035] [2024-10-11 13:10:16,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 13:10:16,963 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 13:10:16,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 13:10:16,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 13:10:16,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-11 13:10:16,964 INFO L87 Difference]: Start difference. First operand 64 states and 78 transitions. Second operand has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-10-11 13:10:17,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 13:10:17,132 INFO L93 Difference]: Finished difference Result 76 states and 90 transitions. [2024-10-11 13:10:17,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 13:10:17,133 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 96 [2024-10-11 13:10:17,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 13:10:17,133 INFO L225 Difference]: With dead ends: 76 [2024-10-11 13:10:17,133 INFO L226 Difference]: Without dead ends: 0 [2024-10-11 13:10:17,134 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2024-10-11 13:10:17,135 INFO L432 NwaCegarLoop]: 54 mSDtfsCounter, 40 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 149 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 13:10:17,135 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 149 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 13:10:17,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-10-11 13:10:17,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-10-11 13:10:17,137 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) [2024-10-11 13:10:17,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-10-11 13:10:17,137 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 96 [2024-10-11 13:10:17,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 13:10:17,137 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-11 13:10:17,138 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-10-11 13:10:17,138 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-10-11 13:10:17,138 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-10-11 13:10:17,141 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-10-11 13:10:17,142 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-11 13:10:17,144 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2024-10-11 13:10:17,146 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-10-11 13:10:17,747 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-11 13:10:17,764 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 01:10:17 BoogieIcfgContainer [2024-10-11 13:10:17,764 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-11 13:10:17,765 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-11 13:10:17,765 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-11 13:10:17,765 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-11 13:10:17,766 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 01:10:10" (3/4) ... [2024-10-11 13:10:17,767 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-11 13:10:17,771 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2024-10-11 13:10:17,776 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2024-10-11 13:10:17,777 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-10-11 13:10:17,777 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-10-11 13:10:17,777 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-11 13:10:17,880 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-11 13:10:17,881 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-11 13:10:17,881 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-11 13:10:17,882 INFO L158 Benchmark]: Toolchain (without parser) took 7849.63ms. Allocated memory was 161.5MB in the beginning and 234.9MB in the end (delta: 73.4MB). Free memory was 99.0MB in the beginning and 90.2MB in the end (delta: 8.8MB). Peak memory consumption was 82.3MB. Max. memory is 16.1GB. [2024-10-11 13:10:17,882 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 96.5MB. Free memory is still 50.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-11 13:10:17,882 INFO L158 Benchmark]: CACSL2BoogieTranslator took 337.70ms. Allocated memory is still 161.5MB. Free memory was 98.6MB in the beginning and 128.8MB in the end (delta: -30.1MB). Peak memory consumption was 12.7MB. Max. memory is 16.1GB. [2024-10-11 13:10:17,882 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.67ms. Allocated memory is still 161.5MB. Free memory was 128.8MB in the beginning and 125.9MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-11 13:10:17,883 INFO L158 Benchmark]: Boogie Preprocessor took 46.22ms. Allocated memory is still 161.5MB. Free memory was 125.9MB in the beginning and 123.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-11 13:10:17,883 INFO L158 Benchmark]: RCFGBuilder took 483.01ms. Allocated memory is still 161.5MB. Free memory was 123.8MB in the beginning and 105.7MB in the end (delta: 18.1MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-10-11 13:10:17,883 INFO L158 Benchmark]: TraceAbstraction took 6823.01ms. Allocated memory was 161.5MB in the beginning and 234.9MB in the end (delta: 73.4MB). Free memory was 105.0MB in the beginning and 95.5MB in the end (delta: 9.5MB). Peak memory consumption was 118.4MB. Max. memory is 16.1GB. [2024-10-11 13:10:17,884 INFO L158 Benchmark]: Witness Printer took 116.02ms. Allocated memory is still 234.9MB. Free memory was 95.5MB in the beginning and 90.2MB in the end (delta: 5.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-10-11 13:10:17,885 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 96.5MB. Free memory is still 50.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 337.70ms. Allocated memory is still 161.5MB. Free memory was 98.6MB in the beginning and 128.8MB in the end (delta: -30.1MB). Peak memory consumption was 12.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.67ms. Allocated memory is still 161.5MB. Free memory was 128.8MB in the beginning and 125.9MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.22ms. Allocated memory is still 161.5MB. Free memory was 125.9MB in the beginning and 123.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 483.01ms. Allocated memory is still 161.5MB. Free memory was 123.8MB in the beginning and 105.7MB in the end (delta: 18.1MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 6823.01ms. Allocated memory was 161.5MB in the beginning and 234.9MB in the end (delta: 73.4MB). Free memory was 105.0MB in the beginning and 95.5MB in the end (delta: 9.5MB). Peak memory consumption was 118.4MB. Max. memory is 16.1GB. * Witness Printer took 116.02ms. Allocated memory is still 234.9MB. Free memory was 95.5MB in the beginning and 90.2MB in the end (delta: 5.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * 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: 19]: 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 2 procedures, 45 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 6.1s, OverallIterations: 7, TraceHistogramMax: 15, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 254 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 248 mSDsluCounter, 859 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 450 mSDsCounter, 74 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 394 IncrementalHoareTripleChecker+Invalid, 468 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 74 mSolverCounterUnsat, 409 mSDtfsCounter, 394 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 449 GetRequests, 413 SyntacticMatches, 4 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=69occurred in iteration=5, InterpolantAutomatonStates: 42, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 91 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 4.0s InterpolantComputationTime, 759 NumberOfCodeBlocks, 759 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 846 ConstructedInterpolants, 0 QuantifiedInterpolants, 2765 SizeOfPredicates, 3 NumberOfNonLiveVariables, 222 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 9 InterpolantComputations, 6 PerfectInterpolantSequences, 3699/3780 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 - InvariantResult [Line: 106]: Loop Invariant Derived loop invariant: ((var_1_5 == 0) && (((((240 + var_1_11) == ((256 * ((240 + var_1_11) / 256)) + var_1_8)) || (((((256 * ((240 + var_1_11) / 256)) + 16) + var_1_8) == var_1_11) && ((256 * ((240 + var_1_11) / 256)) <= (112 + var_1_11)))) && (((112 + var_1_11) < (256 * ((240 + var_1_11) / 256))) || ((240 + var_1_11) != ((256 * ((240 + var_1_11) / 256)) + var_1_8)))) || (var_1_4 != var_1_10))) - ProcedureContractResult [Line: 20]: Procedure Contract for assume_abort_if_not Derived contract for procedure assume_abort_if_not. Ensures: (cond != 0) RESULT: Ultimate proved your program to be correct! [2024-10-11 13:10:17,911 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE