./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-regression/test23-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-regression/test23-2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/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 6107b0424f9f7d96b4a493f3ee8e42c81c6509c50d1ec834cc7d1fa0b8a2c5d3 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 12:59:35,640 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 12:59:35,736 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-18 12:59:35,741 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 12:59:35,744 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 12:59:35,776 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 12:59:35,776 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 12:59:35,777 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 12:59:35,777 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 12:59:35,778 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 12:59:35,778 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 12:59:35,779 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 12:59:35,780 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 12:59:35,782 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 12:59:35,782 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 12:59:35,783 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 12:59:35,783 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 12:59:35,783 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-18 12:59:35,783 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-18 12:59:35,784 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-18 12:59:35,784 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 12:59:35,787 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 12:59:35,787 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 12:59:35,787 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 12:59:35,787 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 12:59:35,788 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-18 12:59:35,788 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 12:59:35,788 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 12:59:35,788 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 12:59:35,789 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 12:59:35,789 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 12:59:35,789 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 12:59:35,789 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 12:59:35,790 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 12:59:35,790 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 12:59:35,792 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 12:59:35,793 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-18 12:59:35,793 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-18 12:59:35,793 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 12:59:35,793 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 12:59:35,794 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 12:59:35,794 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 12:59:35,795 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6107b0424f9f7d96b4a493f3ee8e42c81c6509c50d1ec834cc7d1fa0b8a2c5d3 [2024-11-18 12:59:36,060 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 12:59:36,089 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 12:59:36,094 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 12:59:36,095 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 12:59:36,096 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 12:59:36,097 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-regression/test23-2.c [2024-11-18 12:59:37,649 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 12:59:37,843 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 12:59:37,844 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-regression/test23-2.c [2024-11-18 12:59:37,852 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eb4492661/b28b37414e614dcab032065f582cef20/FLAG18a74fefe [2024-11-18 12:59:37,870 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eb4492661/b28b37414e614dcab032065f582cef20 [2024-11-18 12:59:37,873 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 12:59:37,874 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 12:59:37,876 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 12:59:37,876 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 12:59:37,881 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 12:59:37,881 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 12:59:37" (1/1) ... [2024-11-18 12:59:37,882 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@592f881e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:59:37, skipping insertion in model container [2024-11-18 12:59:37,882 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 12:59:37" (1/1) ... [2024-11-18 12:59:37,901 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 12:59:38,102 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-regression/test23-2.c[1070,1083] [2024-11-18 12:59:38,107 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 12:59:38,122 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 12:59:38,138 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-regression/test23-2.c[1070,1083] [2024-11-18 12:59:38,139 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 12:59:38,161 INFO L204 MainTranslator]: Completed translation [2024-11-18 12:59:38,161 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:59:38 WrapperNode [2024-11-18 12:59:38,162 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 12:59:38,163 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 12:59:38,163 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 12:59:38,163 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 12:59:38,170 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:59:38" (1/1) ... [2024-11-18 12:59:38,176 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:59:38" (1/1) ... [2024-11-18 12:59:38,200 INFO L138 Inliner]: procedures = 16, calls = 57, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 113 [2024-11-18 12:59:38,200 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 12:59:38,201 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 12:59:38,201 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 12:59:38,202 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 12:59:38,218 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:59:38" (1/1) ... [2024-11-18 12:59:38,223 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:59:38" (1/1) ... [2024-11-18 12:59:38,228 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:59:38" (1/1) ... [2024-11-18 12:59:38,243 INFO L175 MemorySlicer]: Split 46 memory accesses to 2 slices as follows [2, 44]. 96 percent of accesses are in the largest equivalence class. The 38 initializations are split as follows [2, 36]. The 5 writes are split as follows [0, 5]. [2024-11-18 12:59:38,243 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:59:38" (1/1) ... [2024-11-18 12:59:38,243 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:59:38" (1/1) ... [2024-11-18 12:59:38,250 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:59:38" (1/1) ... [2024-11-18 12:59:38,254 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:59:38" (1/1) ... [2024-11-18 12:59:38,256 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:59:38" (1/1) ... [2024-11-18 12:59:38,257 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:59:38" (1/1) ... [2024-11-18 12:59:38,259 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 12:59:38,260 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 12:59:38,260 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 12:59:38,260 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 12:59:38,261 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:59:38" (1/1) ... [2024-11-18 12:59:38,273 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 12:59:38,289 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 12:59:38,308 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-18 12:59:38,313 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-18 12:59:38,371 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 12:59:38,371 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-18 12:59:38,371 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-18 12:59:38,372 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-18 12:59:38,372 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-18 12:59:38,372 INFO L130 BoogieDeclarations]: Found specification of procedure get_dummy [2024-11-18 12:59:38,372 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dummy [2024-11-18 12:59:38,372 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 12:59:38,374 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 12:59:38,374 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-18 12:59:38,374 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-18 12:59:38,463 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 12:59:38,468 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 12:59:38,732 INFO L? ?]: Removed 19 outVars from TransFormulas that were not future-live. [2024-11-18 12:59:38,733 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 12:59:38,745 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 12:59:38,749 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-18 12:59:38,750 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:59:38 BoogieIcfgContainer [2024-11-18 12:59:38,750 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 12:59:38,754 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 12:59:38,754 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 12:59:38,765 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 12:59:38,765 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 12:59:37" (1/3) ... [2024-11-18 12:59:38,766 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13c63e40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 12:59:38, skipping insertion in model container [2024-11-18 12:59:38,766 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:59:38" (2/3) ... [2024-11-18 12:59:38,767 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13c63e40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 12:59:38, skipping insertion in model container [2024-11-18 12:59:38,767 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:59:38" (3/3) ... [2024-11-18 12:59:38,768 INFO L112 eAbstractionObserver]: Analyzing ICFG test23-2.c [2024-11-18 12:59:38,787 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 12:59:38,787 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-18 12:59:38,846 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 12:59:38,854 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;@3e10ce1b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 12:59:38,854 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-18 12:59:38,858 INFO L276 IsEmpty]: Start isEmpty. Operand has 22 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 18 states have internal predecessors, (22), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-18 12:59:38,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-18 12:59:38,867 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 12:59:38,867 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 12:59:38,868 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 12:59:38,872 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 12:59:38,873 INFO L85 PathProgramCache]: Analyzing trace with hash -1478003781, now seen corresponding path program 1 times [2024-11-18 12:59:38,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 12:59:38,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461972724] [2024-11-18 12:59:38,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 12:59:38,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 12:59:39,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 12:59:39,175 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-18 12:59:39,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 12:59:39,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461972724] [2024-11-18 12:59:39,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [461972724] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 12:59:39,176 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 12:59:39,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-18 12:59:39,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549012496] [2024-11-18 12:59:39,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 12:59:39,183 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-18 12:59:39,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 12:59:39,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-18 12:59:39,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-18 12:59:39,210 INFO L87 Difference]: Start difference. First operand has 22 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 18 states have internal predecessors, (22), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-18 12:59:39,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 12:59:39,226 INFO L93 Difference]: Finished difference Result 31 states and 35 transitions. [2024-11-18 12:59:39,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-18 12:59:39,228 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 19 [2024-11-18 12:59:39,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 12:59:39,233 INFO L225 Difference]: With dead ends: 31 [2024-11-18 12:59:39,233 INFO L226 Difference]: Without dead ends: 18 [2024-11-18 12:59:39,236 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-18 12:59:39,239 INFO L432 NwaCegarLoop]: 24 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 12:59:39,240 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 12:59:39,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2024-11-18 12:59:39,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2024-11-18 12:59:39,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 14 states have (on average 1.0714285714285714) internal successors, (15), 14 states have internal predecessors, (15), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-18 12:59:39,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2024-11-18 12:59:39,283 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 19 [2024-11-18 12:59:39,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 12:59:39,285 INFO L471 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions. [2024-11-18 12:59:39,285 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-18 12:59:39,285 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2024-11-18 12:59:39,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-18 12:59:39,287 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 12:59:39,288 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 12:59:39,288 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-18 12:59:39,289 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 12:59:39,290 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 12:59:39,290 INFO L85 PathProgramCache]: Analyzing trace with hash 1220515189, now seen corresponding path program 1 times [2024-11-18 12:59:39,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 12:59:39,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941133725] [2024-11-18 12:59:39,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 12:59:39,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 12:59:39,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 12:59:41,770 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-18 12:59:41,770 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 12:59:41,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941133725] [2024-11-18 12:59:41,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [941133725] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 12:59:41,771 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 12:59:41,771 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-18 12:59:41,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1692340108] [2024-11-18 12:59:41,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 12:59:41,773 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-18 12:59:41,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 12:59:41,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-18 12:59:41,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-18 12:59:41,777 INFO L87 Difference]: Start difference. First operand 18 states and 19 transitions. Second operand has 9 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 8 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-18 12:59:41,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 12:59:41,987 INFO L93 Difference]: Finished difference Result 25 states and 26 transitions. [2024-11-18 12:59:41,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-18 12:59:41,988 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 8 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 20 [2024-11-18 12:59:41,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 12:59:41,989 INFO L225 Difference]: With dead ends: 25 [2024-11-18 12:59:41,989 INFO L226 Difference]: Without dead ends: 20 [2024-11-18 12:59:41,991 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2024-11-18 12:59:41,992 INFO L432 NwaCegarLoop]: 11 mSDtfsCounter, 20 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 12:59:41,993 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 56 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 12:59:41,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2024-11-18 12:59:42,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2024-11-18 12:59:42,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 16 states have (on average 1.0625) internal successors, (17), 16 states have internal predecessors, (17), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-18 12:59:42,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 21 transitions. [2024-11-18 12:59:42,002 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 21 transitions. Word has length 20 [2024-11-18 12:59:42,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 12:59:42,002 INFO L471 AbstractCegarLoop]: Abstraction has 20 states and 21 transitions. [2024-11-18 12:59:42,003 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 8 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-18 12:59:42,003 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2024-11-18 12:59:42,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-11-18 12:59:42,004 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 12:59:42,004 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 12:59:42,004 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-18 12:59:42,005 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 12:59:42,007 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 12:59:42,007 INFO L85 PathProgramCache]: Analyzing trace with hash 1898823162, now seen corresponding path program 1 times [2024-11-18 12:59:42,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 12:59:42,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037775206] [2024-11-18 12:59:42,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 12:59:42,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 12:59:42,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 12:59:43,085 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-18 12:59:43,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 12:59:43,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037775206] [2024-11-18 12:59:43,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1037775206] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 12:59:43,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [648680530] [2024-11-18 12:59:43,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 12:59:43,087 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 12:59:43,087 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 12:59:43,089 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 12:59:43,091 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-18 12:59:43,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 12:59:43,189 INFO L255 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-18 12:59:43,194 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 12:59:43,307 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 1 [2024-11-18 12:59:43,409 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-18 12:59:43,409 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 12 [2024-11-18 12:59:43,430 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-18 12:59:43,430 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-18 12:59:43,514 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-18 12:59:43,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [648680530] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-18 12:59:43,515 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-18 12:59:43,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 5, 5] total 16 [2024-11-18 12:59:43,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043454138] [2024-11-18 12:59:43,515 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-18 12:59:43,516 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-18 12:59:43,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 12:59:43,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-18 12:59:43,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=189, Unknown=0, NotChecked=0, Total=240 [2024-11-18 12:59:43,518 INFO L87 Difference]: Start difference. First operand 20 states and 21 transitions. Second operand has 16 states, 15 states have (on average 2.2) internal successors, (33), 15 states have internal predecessors, (33), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-18 12:59:43,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 12:59:43,818 INFO L93 Difference]: Finished difference Result 31 states and 34 transitions. [2024-11-18 12:59:43,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-18 12:59:43,819 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.2) internal successors, (33), 15 states have internal predecessors, (33), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 22 [2024-11-18 12:59:43,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 12:59:43,820 INFO L225 Difference]: With dead ends: 31 [2024-11-18 12:59:43,820 INFO L226 Difference]: Without dead ends: 26 [2024-11-18 12:59:43,820 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=150, Invalid=500, Unknown=0, NotChecked=0, Total=650 [2024-11-18 12:59:43,821 INFO L432 NwaCegarLoop]: 14 mSDtfsCounter, 44 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 12:59:43,821 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 116 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 12:59:43,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2024-11-18 12:59:43,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2024-11-18 12:59:43,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 22 states have (on average 1.0454545454545454) internal successors, (23), 22 states have internal predecessors, (23), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-18 12:59:43,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 27 transitions. [2024-11-18 12:59:43,833 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 27 transitions. Word has length 22 [2024-11-18 12:59:43,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 12:59:43,834 INFO L471 AbstractCegarLoop]: Abstraction has 26 states and 27 transitions. [2024-11-18 12:59:43,835 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.2) internal successors, (33), 15 states have internal predecessors, (33), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-18 12:59:43,835 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 27 transitions. [2024-11-18 12:59:43,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-18 12:59:43,836 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 12:59:43,836 INFO L215 NwaCegarLoop]: trace histogram [5, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 12:59:43,856 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-18 12:59:44,037 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 12:59:44,038 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 12:59:44,038 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 12:59:44,038 INFO L85 PathProgramCache]: Analyzing trace with hash -974313463, now seen corresponding path program 2 times [2024-11-18 12:59:44,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 12:59:44,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759849150] [2024-11-18 12:59:44,039 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-18 12:59:44,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 12:59:44,100 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-18 12:59:44,101 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-18 12:59:46,203 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-18 12:59:46,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 12:59:46,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759849150] [2024-11-18 12:59:46,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [759849150] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 12:59:46,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1419998943] [2024-11-18 12:59:46,205 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-18 12:59:46,205 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 12:59:46,205 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 12:59:46,209 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 12:59:46,211 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-18 12:59:46,322 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-18 12:59:46,323 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-18 12:59:46,325 INFO L255 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-18 12:59:46,328 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 12:59:46,374 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 88 treesize of output 85 [2024-11-18 12:59:46,423 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 18 [2024-11-18 12:59:46,503 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 166 treesize of output 148 [2024-11-18 12:59:46,511 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 148 treesize of output 93 [2024-11-18 12:59:50,618 INFO L349 Elim1Store]: treesize reduction 15, result has 65.9 percent of original size [2024-11-18 12:59:50,618 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 133 treesize of output 107 [2024-11-18 12:59:50,763 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-18 12:59:50,764 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-18 12:59:51,282 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-18 12:59:51,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1419998943] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-18 12:59:51,283 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-18 12:59:51,283 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 8, 8] total 30 [2024-11-18 12:59:51,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312865657] [2024-11-18 12:59:51,283 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-18 12:59:51,284 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-11-18 12:59:51,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 12:59:51,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-11-18 12:59:51,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=758, Unknown=1, NotChecked=0, Total=870 [2024-11-18 12:59:51,286 INFO L87 Difference]: Start difference. First operand 26 states and 27 transitions. Second operand has 30 states, 29 states have (on average 1.9310344827586208) internal successors, (56), 28 states have internal predecessors, (56), 3 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-18 12:59:54,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 12:59:54,773 INFO L93 Difference]: Finished difference Result 43 states and 49 transitions. [2024-11-18 12:59:54,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-18 12:59:54,774 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 29 states have (on average 1.9310344827586208) internal successors, (56), 28 states have internal predecessors, (56), 3 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 28 [2024-11-18 12:59:54,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 12:59:54,775 INFO L225 Difference]: With dead ends: 43 [2024-11-18 12:59:54,775 INFO L226 Difference]: Without dead ends: 38 [2024-11-18 12:59:54,776 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 404 ImplicationChecksByTransitivity, 7.6s TimeCoverageRelationStatistics Valid=411, Invalid=2138, Unknown=1, NotChecked=0, Total=2550 [2024-11-18 12:59:54,777 INFO L432 NwaCegarLoop]: 11 mSDtfsCounter, 15 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-18 12:59:54,777 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 122 Invalid, 259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-18 12:59:54,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2024-11-18 12:59:54,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2024-11-18 12:59:54,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 34 states have (on average 1.0294117647058822) internal successors, (35), 34 states have internal predecessors, (35), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-18 12:59:54,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 39 transitions. [2024-11-18 12:59:54,791 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 39 transitions. Word has length 28 [2024-11-18 12:59:54,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 12:59:54,791 INFO L471 AbstractCegarLoop]: Abstraction has 38 states and 39 transitions. [2024-11-18 12:59:54,791 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 29 states have (on average 1.9310344827586208) internal successors, (56), 28 states have internal predecessors, (56), 3 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-18 12:59:54,792 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 39 transitions. [2024-11-18 12:59:54,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-18 12:59:54,792 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 12:59:54,793 INFO L215 NwaCegarLoop]: trace histogram [11, 10, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 12:59:54,810 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-18 12:59:54,996 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2024-11-18 12:59:54,997 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 12:59:54,997 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 12:59:54,997 INFO L85 PathProgramCache]: Analyzing trace with hash 638604903, now seen corresponding path program 3 times [2024-11-18 12:59:54,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 12:59:54,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050414971] [2024-11-18 12:59:54,998 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-18 12:59:54,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 12:59:55,077 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-18 12:59:55,078 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-18 12:59:56,575 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 11 proven. 20 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2024-11-18 12:59:56,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 12:59:56,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050414971] [2024-11-18 12:59:56,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2050414971] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 12:59:56,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1282558960] [2024-11-18 12:59:56,577 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-18 12:59:56,577 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 12:59:56,577 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 12:59:56,579 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 12:59:56,580 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-18 12:59:56,732 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-18 12:59:56,732 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-18 12:59:56,735 INFO L255 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-11-18 12:59:56,740 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 12:59:56,748 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 25 [2024-11-18 13:00:01,567 INFO L349 Elim1Store]: treesize reduction 78, result has 48.3 percent of original size [2024-11-18 13:00:01,567 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 162 treesize of output 150 [2024-11-18 13:00:01,880 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 19 proven. 10 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-18 13:00:01,880 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-18 13:00:02,085 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-18 13:00:02,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1282558960] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-18 13:00:02,085 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-18 13:00:02,085 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9, 9] total 24 [2024-11-18 13:00:02,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319651589] [2024-11-18 13:00:02,086 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-18 13:00:02,086 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-18 13:00:02,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 13:00:02,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-18 13:00:02,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=476, Unknown=1, NotChecked=0, Total=552 [2024-11-18 13:00:02,087 INFO L87 Difference]: Start difference. First operand 38 states and 39 transitions. Second operand has 24 states, 24 states have (on average 1.8333333333333333) internal successors, (44), 24 states have internal predecessors, (44), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-18 13:00:02,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 13:00:02,409 INFO L93 Difference]: Finished difference Result 38 states and 39 transitions. [2024-11-18 13:00:02,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 13:00:02,409 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 1.8333333333333333) internal successors, (44), 24 states have internal predecessors, (44), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 40 [2024-11-18 13:00:02,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 13:00:02,410 INFO L225 Difference]: With dead ends: 38 [2024-11-18 13:00:02,410 INFO L226 Difference]: Without dead ends: 0 [2024-11-18 13:00:02,410 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=129, Invalid=740, Unknown=1, NotChecked=0, Total=870 [2024-11-18 13:00:02,411 INFO L432 NwaCegarLoop]: 10 mSDtfsCounter, 17 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 13:00:02,411 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 92 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 13:00:02,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-18 13:00:02,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-18 13:00:02,412 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) [2024-11-18 13:00:02,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-18 13:00:02,412 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 40 [2024-11-18 13:00:02,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 13:00:02,413 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-18 13:00:02,413 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 1.8333333333333333) internal successors, (44), 24 states have internal predecessors, (44), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-18 13:00:02,413 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-18 13:00:02,413 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-18 13:00:02,416 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-18 13:00:02,429 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-18 13:00:02,616 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 13:00:02,620 INFO L407 BasicCegarLoop]: Path program histogram: [3, 1, 1] [2024-11-18 13:00:02,622 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-18 13:00:02,977 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-18 13:00:02,990 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~pd2~0!offset [2024-11-18 13:00:02,991 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~pd1~0!offset [2024-11-18 13:00:02,991 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~pd2~0!offset [2024-11-18 13:00:02,991 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#d2~0!offset [2024-11-18 13:00:02,991 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int#1 [2024-11-18 13:00:02,992 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#1,GLOBAL] [2024-11-18 13:00:02,992 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#1,GLOBAL],[IdentifierExpression[~pd2~0!base,]]] [2024-11-18 13:00:02,992 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~pd2~0!offset [2024-11-18 13:00:02,992 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~pa~0!offset [2024-11-18 13:00:02,992 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~pd2~0!offset [2024-11-18 13:00:02,992 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~pa~0!offset [2024-11-18 13:00:02,992 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#d1~0!offset [2024-11-18 13:00:02,992 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~pa~0!base [2024-11-18 13:00:02,992 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~pd2~0!base [2024-11-18 13:00:02,993 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int#1 [2024-11-18 13:00:02,993 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#1,GLOBAL] [2024-11-18 13:00:02,993 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#1,GLOBAL],[IdentifierExpression[~pa~0!base,]]] [2024-11-18 13:00:03,000 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#d1~0!base [2024-11-18 13:00:03,001 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#d2~0!base [2024-11-18 13:00:03,001 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#d2~0!offset [2024-11-18 13:00:03,001 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int#1 [2024-11-18 13:00:03,001 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#1,GLOBAL] [2024-11-18 13:00:03,002 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#1,GLOBAL],[IdentifierExpression[~#d1~0!base,GLOBAL]]] [2024-11-18 13:00:03,002 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int#1 [2024-11-18 13:00:03,002 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#1,GLOBAL] [2024-11-18 13:00:03,002 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#1,GLOBAL],[IdentifierExpression[~#d1~0!base,GLOBAL]]] [2024-11-18 13:00:03,002 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#d1~0!offset [2024-11-18 13:00:03,002 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int#1 [2024-11-18 13:00:03,002 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#1,GLOBAL] [2024-11-18 13:00:03,003 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#1,GLOBAL],[IdentifierExpression[~#d2~0!base,GLOBAL]]] [2024-11-18 13:00:03,003 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#d1~0!base [2024-11-18 13:00:03,003 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#d2~0!base [2024-11-18 13:00:03,003 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#d2~0!offset [2024-11-18 13:00:03,003 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #res!base [2024-11-18 13:00:03,003 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#d2~0!base [2024-11-18 13:00:03,004 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#d1~0!base [2024-11-18 13:00:03,004 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #res!base [2024-11-18 13:00:03,004 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int#1 [2024-11-18 13:00:03,004 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#1,GLOBAL] [2024-11-18 13:00:03,004 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#1,GLOBAL],[IdentifierExpression[~#d1~0!base,GLOBAL]]] [2024-11-18 13:00:03,004 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #res!offset [2024-11-18 13:00:03,004 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int#1 [2024-11-18 13:00:03,004 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#1,GLOBAL] [2024-11-18 13:00:03,004 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#1,GLOBAL],[IdentifierExpression[~#d1~0!base,GLOBAL]]] [2024-11-18 13:00:03,005 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#d1~0!offset [2024-11-18 13:00:03,005 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int#1 [2024-11-18 13:00:03,005 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#1,GLOBAL] [2024-11-18 13:00:03,005 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#1,GLOBAL],[IdentifierExpression[~#d2~0!base,GLOBAL]]] [2024-11-18 13:00:03,009 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 01:00:03 BoogieIcfgContainer [2024-11-18 13:00:03,010 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-18 13:00:03,010 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-18 13:00:03,010 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-18 13:00:03,010 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-18 13:00:03,011 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:59:38" (3/4) ... [2024-11-18 13:00:03,013 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-18 13:00:03,016 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure get_dummy [2024-11-18 13:00:03,019 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2024-11-18 13:00:03,020 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-18 13:00:03,020 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-18 13:00:03,020 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-18 13:00:03,116 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-18 13:00:03,117 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-18 13:00:03,117 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-18 13:00:03,118 INFO L158 Benchmark]: Toolchain (without parser) took 25243.76ms. Allocated memory was 140.5MB in the beginning and 375.4MB in the end (delta: 234.9MB). Free memory was 84.6MB in the beginning and 286.2MB in the end (delta: -201.5MB). Peak memory consumption was 36.9MB. Max. memory is 16.1GB. [2024-11-18 13:00:03,118 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 140.5MB. Free memory is still 102.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-18 13:00:03,119 INFO L158 Benchmark]: CACSL2BoogieTranslator took 286.45ms. Allocated memory is still 140.5MB. Free memory was 84.6MB in the beginning and 71.0MB in the end (delta: 13.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-18 13:00:03,119 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.86ms. Allocated memory is still 140.5MB. Free memory was 70.6MB in the beginning and 68.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-18 13:00:03,120 INFO L158 Benchmark]: Boogie Preprocessor took 57.92ms. Allocated memory is still 140.5MB. Free memory was 68.9MB in the beginning and 66.5MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-18 13:00:03,120 INFO L158 Benchmark]: RCFGBuilder took 490.07ms. Allocated memory was 140.5MB in the beginning and 211.8MB in the end (delta: 71.3MB). Free memory was 66.5MB in the beginning and 179.8MB in the end (delta: -113.3MB). Peak memory consumption was 22.7MB. Max. memory is 16.1GB. [2024-11-18 13:00:03,120 INFO L158 Benchmark]: TraceAbstraction took 24255.96ms. Allocated memory was 211.8MB in the beginning and 375.4MB in the end (delta: 163.6MB). Free memory was 179.8MB in the beginning and 291.4MB in the end (delta: -111.7MB). Peak memory consumption was 221.8MB. Max. memory is 16.1GB. [2024-11-18 13:00:03,121 INFO L158 Benchmark]: Witness Printer took 107.26ms. Allocated memory is still 375.4MB. Free memory was 291.4MB in the beginning and 286.2MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-18 13:00:03,122 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 140.5MB. Free memory is still 102.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 286.45ms. Allocated memory is still 140.5MB. Free memory was 84.6MB in the beginning and 71.0MB in the end (delta: 13.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.86ms. Allocated memory is still 140.5MB. Free memory was 70.6MB in the beginning and 68.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 57.92ms. Allocated memory is still 140.5MB. Free memory was 68.9MB in the beginning and 66.5MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 490.07ms. Allocated memory was 140.5MB in the beginning and 211.8MB in the end (delta: 71.3MB). Free memory was 66.5MB in the beginning and 179.8MB in the end (delta: -113.3MB). Peak memory consumption was 22.7MB. Max. memory is 16.1GB. * TraceAbstraction took 24255.96ms. Allocated memory was 211.8MB in the beginning and 375.4MB in the end (delta: 163.6MB). Free memory was 179.8MB in the beginning and 291.4MB in the end (delta: -111.7MB). Peak memory consumption was 221.8MB. Max. memory is 16.1GB. * Witness Printer took 107.26ms. Allocated memory is still 375.4MB. Free memory was 291.4MB in the beginning and 286.2MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~pd2~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~pd1~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~pd2~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~#d2~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int#1 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#1,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#1,GLOBAL],[IdentifierExpression[~pd2~0!base,]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~pd2~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~pa~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~pd2~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~pa~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~#d1~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~pa~0!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~pd2~0!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int#1 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#1,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#1,GLOBAL],[IdentifierExpression[~pa~0!base,]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~#d1~0!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~#d2~0!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~#d2~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int#1 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#1,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#1,GLOBAL],[IdentifierExpression[~#d1~0!base,GLOBAL]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int#1 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#1,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#1,GLOBAL],[IdentifierExpression[~#d1~0!base,GLOBAL]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~#d1~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int#1 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#1,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#1,GLOBAL],[IdentifierExpression[~#d2~0!base,GLOBAL]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~#d1~0!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~#d2~0!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~#d2~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #res!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~#d2~0!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~#d1~0!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #res!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int#1 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#1,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#1,GLOBAL],[IdentifierExpression[~#d1~0!base,GLOBAL]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #res!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int#1 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#1,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#1,GLOBAL],[IdentifierExpression[~#d1~0!base,GLOBAL]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~#d1~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int#1 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#1,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#1,GLOBAL],[IdentifierExpression[~#d2~0!base,GLOBAL]]] * 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: 52]: 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, 22 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 23.8s, OverallIterations: 5, TraceHistogramMax: 11, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 4.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 101 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 96 mSDsluCounter, 410 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 340 mSDsCounter, 20 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 473 IncrementalHoareTripleChecker+Invalid, 493 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 20 mSolverCounterUnsat, 70 mSDtfsCounter, 473 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 272 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 114 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 684 ImplicationChecksByTransitivity, 13.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=38occurred in iteration=4, InterpolantAutomatonStates: 62, 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, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 17.6s InterpolantComputationTime, 219 NumberOfCodeBlocks, 187 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 298 ConstructedInterpolants, 12 QuantifiedInterpolants, 4962 SizeOfPredicates, 31 NumberOfNonLiveVariables, 653 ConjunctsInSsa, 68 ConjunctsInUnsatCore, 11 InterpolantComputations, 2 PerfectInterpolantSequences, 302/429 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: 42]: Loop Invariant Derived loop invariant: null - ProcedureContractResult [Line: 23]: Procedure Contract for get_dummy Derived contract for procedure get_dummy. Ensures: ((d1 == \old(d1)) && (d2 == \old(d2))) RESULT: Ultimate proved your program to be correct! [2024-11-18 13:00:03,177 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE