./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/forester-heap/sll-rb-sentinel-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 803cd42f Calling Ultimate with: /root/.sdkman/candidates/java/current/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/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/forester-heap/sll-rb-sentinel-1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-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 valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b05b18c0458ef705f828769f88cc2a590589ce4d5c3f0e48f99be90a949f7ed4 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 18:56:17,700 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 18:56:17,753 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-22 18:56:17,757 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 18:56:17,758 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 18:56:17,790 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 18:56:17,792 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 18:56:17,792 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 18:56:17,793 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 18:56:17,793 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 18:56:17,793 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 18:56:17,794 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 18:56:17,794 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 18:56:17,795 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 18:56:17,796 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 18:56:17,796 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 18:56:17,796 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 18:56:17,796 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 18:56:17,796 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 18:56:17,797 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 18:56:17,797 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-22 18:56:17,799 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-22 18:56:17,800 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-22 18:56:17,800 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 18:56:17,800 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-22 18:56:17,800 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 18:56:17,800 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-22 18:56:17,801 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 18:56:17,801 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 18:56:17,801 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 18:56:17,801 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 18:56:17,801 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 18:56:17,801 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 18:56:17,801 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 18:56:17,802 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 18:56:17,802 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 18:56:17,802 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 18:56:17,802 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 18:56:17,802 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 18:56:17,802 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 18:56:17,803 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 18:56:17,804 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 18:56:17,804 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b05b18c0458ef705f828769f88cc2a590589ce4d5c3f0e48f99be90a949f7ed4 [2024-11-22 18:56:18,005 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 18:56:18,024 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 18:56:18,026 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 18:56:18,026 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 18:56:18,027 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 18:56:18,028 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/forester-heap/sll-rb-sentinel-1.i [2024-11-22 18:56:19,223 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 18:56:19,403 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 18:56:19,404 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/sll-rb-sentinel-1.i [2024-11-22 18:56:19,414 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc6860078/8b7dad9081154d9cb072df962b270744/FLAG7507cb385 [2024-11-22 18:56:19,781 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc6860078/8b7dad9081154d9cb072df962b270744 [2024-11-22 18:56:19,785 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 18:56:19,786 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 18:56:19,788 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 18:56:19,788 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 18:56:19,791 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 18:56:19,792 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 06:56:19" (1/1) ... [2024-11-22 18:56:19,793 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75309cf5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:56:19, skipping insertion in model container [2024-11-22 18:56:19,793 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 06:56:19" (1/1) ... [2024-11-22 18:56:19,830 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 18:56:20,091 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 18:56:20,099 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 18:56:20,134 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 18:56:20,162 INFO L204 MainTranslator]: Completed translation [2024-11-22 18:56:20,162 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:56:20 WrapperNode [2024-11-22 18:56:20,162 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 18:56:20,163 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 18:56:20,164 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 18:56:20,164 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 18:56:20,170 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:56:20" (1/1) ... [2024-11-22 18:56:20,180 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:56:20" (1/1) ... [2024-11-22 18:56:20,202 INFO L138 Inliner]: procedures = 119, calls = 40, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 135 [2024-11-22 18:56:20,202 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 18:56:20,203 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 18:56:20,203 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 18:56:20,204 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 18:56:20,212 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:56:20" (1/1) ... [2024-11-22 18:56:20,212 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:56:20" (1/1) ... [2024-11-22 18:56:20,216 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:56:20" (1/1) ... [2024-11-22 18:56:20,232 INFO L175 MemorySlicer]: Split 24 memory accesses to 2 slices as follows [2, 22]. 92 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 11 writes are split as follows [0, 11]. [2024-11-22 18:56:20,232 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:56:20" (1/1) ... [2024-11-22 18:56:20,232 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:56:20" (1/1) ... [2024-11-22 18:56:20,238 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:56:20" (1/1) ... [2024-11-22 18:56:20,241 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:56:20" (1/1) ... [2024-11-22 18:56:20,243 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:56:20" (1/1) ... [2024-11-22 18:56:20,247 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:56:20" (1/1) ... [2024-11-22 18:56:20,249 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 18:56:20,250 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 18:56:20,250 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 18:56:20,250 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 18:56:20,251 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:56:20" (1/1) ... [2024-11-22 18:56:20,259 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 18:56:20,271 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 18:56:20,290 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) [2024-11-22 18:56:20,293 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 [2024-11-22 18:56:20,336 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-11-22 18:56:20,336 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-11-22 18:56:20,337 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-22 18:56:20,337 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-22 18:56:20,337 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-22 18:56:20,337 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-22 18:56:20,337 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-22 18:56:20,338 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 18:56:20,338 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-22 18:56:20,338 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-22 18:56:20,338 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-22 18:56:20,339 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-22 18:56:20,339 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-22 18:56:20,339 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 18:56:20,339 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-22 18:56:20,339 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 18:56:20,340 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 18:56:20,437 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 18:56:20,438 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 18:56:20,789 INFO L? ?]: Removed 107 outVars from TransFormulas that were not future-live. [2024-11-22 18:56:20,789 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 18:56:20,802 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 18:56:20,802 INFO L316 CfgBuilder]: Removed 11 assume(true) statements. [2024-11-22 18:56:20,803 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 06:56:20 BoogieIcfgContainer [2024-11-22 18:56:20,803 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 18:56:20,804 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 18:56:20,804 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 18:56:20,808 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 18:56:20,809 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 06:56:19" (1/3) ... [2024-11-22 18:56:20,809 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51c9a27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 06:56:20, skipping insertion in model container [2024-11-22 18:56:20,809 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:56:20" (2/3) ... [2024-11-22 18:56:20,810 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51c9a27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 06:56:20, skipping insertion in model container [2024-11-22 18:56:20,810 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 06:56:20" (3/3) ... [2024-11-22 18:56:20,811 INFO L112 eAbstractionObserver]: Analyzing ICFG sll-rb-sentinel-1.i [2024-11-22 18:56:20,824 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 18:56:20,825 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 58 error locations. [2024-11-22 18:56:20,866 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 18:56:20,871 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=None, 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;@102c2826, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 18:56:20,872 INFO L334 AbstractCegarLoop]: Starting to check reachability of 58 error locations. [2024-11-22 18:56:20,875 INFO L276 IsEmpty]: Start isEmpty. Operand has 138 states, 74 states have (on average 2.081081081081081) internal successors, (154), 132 states have internal predecessors, (154), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-22 18:56:20,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-22 18:56:20,880 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 18:56:20,880 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-22 18:56:20,881 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 55 more)] === [2024-11-22 18:56:20,899 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:56:20,900 INFO L85 PathProgramCache]: Analyzing trace with hash 38794, now seen corresponding path program 1 times [2024-11-22 18:56:20,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:56:20,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726130051] [2024-11-22 18:56:20,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:56:20,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:56:21,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:56:21,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:56:21,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:56:21,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726130051] [2024-11-22 18:56:21,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [726130051] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:56:21,083 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:56:21,083 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 18:56:21,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194637971] [2024-11-22 18:56:21,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:56:21,088 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:56:21,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:56:21,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:56:21,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:56:21,117 INFO L87 Difference]: Start difference. First operand has 138 states, 74 states have (on average 2.081081081081081) internal successors, (154), 132 states have internal predecessors, (154), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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) [2024-11-22 18:56:21,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 18:56:21,286 INFO L93 Difference]: Finished difference Result 159 states and 170 transitions. [2024-11-22 18:56:21,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:56:21,290 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2024-11-22 18:56:21,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 18:56:21,296 INFO L225 Difference]: With dead ends: 159 [2024-11-22 18:56:21,296 INFO L226 Difference]: Without dead ends: 157 [2024-11-22 18:56:21,297 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:56:21,299 INFO L432 NwaCegarLoop]: 78 mSDtfsCounter, 107 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 18:56:21,300 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 104 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 18:56:21,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2024-11-22 18:56:21,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 132. [2024-11-22 18:56:21,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 72 states have (on average 1.9305555555555556) internal successors, (139), 130 states have internal predecessors, (139), 4 states have call successors, (4), 1 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:56:21,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 143 transitions. [2024-11-22 18:56:21,331 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 143 transitions. Word has length 3 [2024-11-22 18:56:21,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 18:56:21,331 INFO L471 AbstractCegarLoop]: Abstraction has 132 states and 143 transitions. [2024-11-22 18:56:21,332 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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) [2024-11-22 18:56:21,332 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 143 transitions. [2024-11-22 18:56:21,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-22 18:56:21,332 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 18:56:21,332 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-22 18:56:21,332 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-22 18:56:21,332 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 55 more)] === [2024-11-22 18:56:21,333 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:56:21,333 INFO L85 PathProgramCache]: Analyzing trace with hash 38795, now seen corresponding path program 1 times [2024-11-22 18:56:21,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:56:21,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824783144] [2024-11-22 18:56:21,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:56:21,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:56:21,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:56:21,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:56:21,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:56:21,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824783144] [2024-11-22 18:56:21,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [824783144] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:56:21,418 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:56:21,418 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 18:56:21,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561442215] [2024-11-22 18:56:21,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:56:21,419 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:56:21,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:56:21,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:56:21,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:56:21,420 INFO L87 Difference]: Start difference. First operand 132 states and 143 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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) [2024-11-22 18:56:21,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 18:56:21,522 INFO L93 Difference]: Finished difference Result 129 states and 139 transitions. [2024-11-22 18:56:21,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:56:21,522 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2024-11-22 18:56:21,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 18:56:21,523 INFO L225 Difference]: With dead ends: 129 [2024-11-22 18:56:21,523 INFO L226 Difference]: Without dead ends: 129 [2024-11-22 18:56:21,523 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:56:21,524 INFO L432 NwaCegarLoop]: 79 mSDtfsCounter, 116 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 18:56:21,525 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 82 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 18:56:21,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2024-11-22 18:56:21,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 129. [2024-11-22 18:56:21,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 72 states have (on average 1.875) internal successors, (135), 127 states have internal predecessors, (135), 4 states have call successors, (4), 1 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:56:21,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 139 transitions. [2024-11-22 18:56:21,531 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 139 transitions. Word has length 3 [2024-11-22 18:56:21,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 18:56:21,531 INFO L471 AbstractCegarLoop]: Abstraction has 129 states and 139 transitions. [2024-11-22 18:56:21,532 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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) [2024-11-22 18:56:21,532 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 139 transitions. [2024-11-22 18:56:21,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-22 18:56:21,532 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 18:56:21,532 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-22 18:56:21,532 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 18:56:21,533 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 55 more)] === [2024-11-22 18:56:21,533 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:56:21,534 INFO L85 PathProgramCache]: Analyzing trace with hash 1155697256, now seen corresponding path program 1 times [2024-11-22 18:56:21,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:56:21,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029123188] [2024-11-22 18:56:21,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:56:21,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:56:21,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:56:21,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:56:21,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:56:21,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029123188] [2024-11-22 18:56:21,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2029123188] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:56:21,627 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:56:21,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 18:56:21,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223632150] [2024-11-22 18:56:21,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:56:21,628 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:56:21,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:56:21,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:56:21,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:56:21,629 INFO L87 Difference]: Start difference. First operand 129 states and 139 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2024-11-22 18:56:21,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 18:56:21,724 INFO L93 Difference]: Finished difference Result 124 states and 135 transitions. [2024-11-22 18:56:21,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:56:21,724 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2024-11-22 18:56:21,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 18:56:21,725 INFO L225 Difference]: With dead ends: 124 [2024-11-22 18:56:21,725 INFO L226 Difference]: Without dead ends: 124 [2024-11-22 18:56:21,726 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:56:21,727 INFO L432 NwaCegarLoop]: 77 mSDtfsCounter, 87 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 18:56:21,727 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 87 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 18:56:21,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2024-11-22 18:56:21,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124. [2024-11-22 18:56:21,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 73 states have (on average 1.7945205479452055) internal successors, (131), 122 states have internal predecessors, (131), 4 states have call successors, (4), 1 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:56:21,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 135 transitions. [2024-11-22 18:56:21,732 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 135 transitions. Word has length 6 [2024-11-22 18:56:21,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 18:56:21,735 INFO L471 AbstractCegarLoop]: Abstraction has 124 states and 135 transitions. [2024-11-22 18:56:21,735 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2024-11-22 18:56:21,736 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 135 transitions. [2024-11-22 18:56:21,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-22 18:56:21,736 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 18:56:21,736 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-22 18:56:21,736 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-22 18:56:21,737 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 55 more)] === [2024-11-22 18:56:21,737 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:56:21,737 INFO L85 PathProgramCache]: Analyzing trace with hash 1155697257, now seen corresponding path program 1 times [2024-11-22 18:56:21,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:56:21,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484037118] [2024-11-22 18:56:21,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:56:21,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:56:21,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:56:21,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:56:21,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:56:21,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484037118] [2024-11-22 18:56:21,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [484037118] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:56:21,839 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:56:21,839 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 18:56:21,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919336385] [2024-11-22 18:56:21,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:56:21,840 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:56:21,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:56:21,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:56:21,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:56:21,841 INFO L87 Difference]: Start difference. First operand 124 states and 135 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2024-11-22 18:56:21,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 18:56:21,918 INFO L93 Difference]: Finished difference Result 129 states and 140 transitions. [2024-11-22 18:56:21,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:56:21,919 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2024-11-22 18:56:21,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 18:56:21,919 INFO L225 Difference]: With dead ends: 129 [2024-11-22 18:56:21,921 INFO L226 Difference]: Without dead ends: 129 [2024-11-22 18:56:21,921 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:56:21,922 INFO L432 NwaCegarLoop]: 84 mSDtfsCounter, 81 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 18:56:21,922 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 103 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 18:56:21,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2024-11-22 18:56:21,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 129. [2024-11-22 18:56:21,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 80 states have (on average 1.7) internal successors, (136), 127 states have internal predecessors, (136), 4 states have call successors, (4), 1 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:56:21,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 140 transitions. [2024-11-22 18:56:21,932 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 140 transitions. Word has length 6 [2024-11-22 18:56:21,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 18:56:21,934 INFO L471 AbstractCegarLoop]: Abstraction has 129 states and 140 transitions. [2024-11-22 18:56:21,934 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2024-11-22 18:56:21,934 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 140 transitions. [2024-11-22 18:56:21,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-22 18:56:21,935 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 18:56:21,935 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:56:21,935 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-22 18:56:21,935 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 55 more)] === [2024-11-22 18:56:21,935 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:56:21,935 INFO L85 PathProgramCache]: Analyzing trace with hash -1507281578, now seen corresponding path program 1 times [2024-11-22 18:56:21,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:56:21,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219905544] [2024-11-22 18:56:21,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:56:21,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:56:21,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:56:22,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:56:22,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:56:22,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219905544] [2024-11-22 18:56:22,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1219905544] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:56:22,074 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:56:22,075 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 18:56:22,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797924513] [2024-11-22 18:56:22,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:56:22,075 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 18:56:22,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:56:22,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 18:56:22,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 18:56:22,076 INFO L87 Difference]: Start difference. First operand 129 states and 140 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 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) [2024-11-22 18:56:22,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 18:56:22,206 INFO L93 Difference]: Finished difference Result 120 states and 133 transitions. [2024-11-22 18:56:22,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 18:56:22,207 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2024-11-22 18:56:22,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 18:56:22,208 INFO L225 Difference]: With dead ends: 120 [2024-11-22 18:56:22,208 INFO L226 Difference]: Without dead ends: 120 [2024-11-22 18:56:22,208 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 18:56:22,209 INFO L432 NwaCegarLoop]: 59 mSDtfsCounter, 108 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 18:56:22,212 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 80 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 18:56:22,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2024-11-22 18:56:22,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2024-11-22 18:56:22,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 82 states have (on average 1.5731707317073171) internal successors, (129), 118 states have internal predecessors, (129), 4 states have call successors, (4), 1 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:56:22,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 133 transitions. [2024-11-22 18:56:22,216 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 133 transitions. Word has length 11 [2024-11-22 18:56:22,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 18:56:22,217 INFO L471 AbstractCegarLoop]: Abstraction has 120 states and 133 transitions. [2024-11-22 18:56:22,217 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 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) [2024-11-22 18:56:22,217 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 133 transitions. [2024-11-22 18:56:22,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-22 18:56:22,217 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 18:56:22,217 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:56:22,218 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-22 18:56:22,218 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 55 more)] === [2024-11-22 18:56:22,218 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:56:22,218 INFO L85 PathProgramCache]: Analyzing trace with hash -1507281577, now seen corresponding path program 1 times [2024-11-22 18:56:22,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:56:22,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723991100] [2024-11-22 18:56:22,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:56:22,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:56:22,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:56:22,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:56:22,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:56:22,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1723991100] [2024-11-22 18:56:22,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1723991100] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:56:22,363 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:56:22,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 18:56:22,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974397063] [2024-11-22 18:56:22,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:56:22,364 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 18:56:22,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:56:22,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 18:56:22,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 18:56:22,365 INFO L87 Difference]: Start difference. First operand 120 states and 133 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 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) [2024-11-22 18:56:22,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 18:56:22,515 INFO L93 Difference]: Finished difference Result 128 states and 142 transitions. [2024-11-22 18:56:22,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 18:56:22,516 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2024-11-22 18:56:22,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 18:56:22,516 INFO L225 Difference]: With dead ends: 128 [2024-11-22 18:56:22,516 INFO L226 Difference]: Without dead ends: 128 [2024-11-22 18:56:22,517 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 18:56:22,517 INFO L432 NwaCegarLoop]: 69 mSDtfsCounter, 95 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 18:56:22,517 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 119 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 18:56:22,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2024-11-22 18:56:22,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 127. [2024-11-22 18:56:22,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 90 states have (on average 1.5222222222222221) internal successors, (137), 125 states have internal predecessors, (137), 4 states have call successors, (4), 1 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:56:22,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 141 transitions. [2024-11-22 18:56:22,522 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 141 transitions. Word has length 11 [2024-11-22 18:56:22,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 18:56:22,522 INFO L471 AbstractCegarLoop]: Abstraction has 127 states and 141 transitions. [2024-11-22 18:56:22,522 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 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) [2024-11-22 18:56:22,522 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 141 transitions. [2024-11-22 18:56:22,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-22 18:56:22,523 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 18:56:22,523 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:56:22,523 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-22 18:56:22,523 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 55 more)] === [2024-11-22 18:56:22,525 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:56:22,526 INFO L85 PathProgramCache]: Analyzing trace with hash 1283714209, now seen corresponding path program 1 times [2024-11-22 18:56:22,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:56:22,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250727051] [2024-11-22 18:56:22,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:56:22,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:56:22,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:56:22,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:56:22,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:56:22,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [250727051] [2024-11-22 18:56:22,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [250727051] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:56:22,580 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:56:22,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 18:56:22,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729507692] [2024-11-22 18:56:22,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:56:22,580 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 18:56:22,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:56:22,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 18:56:22,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 18:56:22,581 INFO L87 Difference]: Start difference. First operand 127 states and 141 transitions. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:56:22,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 18:56:22,738 INFO L93 Difference]: Finished difference Result 161 states and 176 transitions. [2024-11-22 18:56:22,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 18:56:22,739 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2024-11-22 18:56:22,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 18:56:22,740 INFO L225 Difference]: With dead ends: 161 [2024-11-22 18:56:22,740 INFO L226 Difference]: Without dead ends: 161 [2024-11-22 18:56:22,740 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-22 18:56:22,741 INFO L432 NwaCegarLoop]: 61 mSDtfsCounter, 214 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 18:56:22,743 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [214 Valid, 139 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 18:56:22,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2024-11-22 18:56:22,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 129. [2024-11-22 18:56:22,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 93 states have (on average 1.4946236559139785) internal successors, (139), 127 states have internal predecessors, (139), 3 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:56:22,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 142 transitions. [2024-11-22 18:56:22,748 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 142 transitions. Word has length 15 [2024-11-22 18:56:22,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 18:56:22,748 INFO L471 AbstractCegarLoop]: Abstraction has 129 states and 142 transitions. [2024-11-22 18:56:22,748 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:56:22,749 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 142 transitions. [2024-11-22 18:56:22,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-22 18:56:22,749 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 18:56:22,749 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:56:22,749 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-22 18:56:22,749 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 55 more)] === [2024-11-22 18:56:22,750 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:56:22,750 INFO L85 PathProgramCache]: Analyzing trace with hash 1300650200, now seen corresponding path program 1 times [2024-11-22 18:56:22,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:56:22,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306893772] [2024-11-22 18:56:22,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:56:22,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:56:22,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:56:22,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:56:22,838 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:56:22,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306893772] [2024-11-22 18:56:22,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [306893772] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:56:22,838 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:56:22,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 18:56:22,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867663493] [2024-11-22 18:56:22,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:56:22,839 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 18:56:22,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:56:22,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 18:56:22,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 18:56:22,839 INFO L87 Difference]: Start difference. First operand 129 states and 142 transitions. Second operand has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 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) [2024-11-22 18:56:22,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 18:56:22,987 INFO L93 Difference]: Finished difference Result 129 states and 142 transitions. [2024-11-22 18:56:22,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 18:56:22,988 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2024-11-22 18:56:22,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 18:56:22,988 INFO L225 Difference]: With dead ends: 129 [2024-11-22 18:56:22,988 INFO L226 Difference]: Without dead ends: 129 [2024-11-22 18:56:22,989 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-22 18:56:22,989 INFO L432 NwaCegarLoop]: 86 mSDtfsCounter, 27 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 266 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 268 SdHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 18:56:22,989 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 268 Invalid, 274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 266 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 18:56:22,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2024-11-22 18:56:22,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 128. [2024-11-22 18:56:22,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 93 states have (on average 1.4838709677419355) internal successors, (138), 126 states have internal predecessors, (138), 3 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:56:22,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 141 transitions. [2024-11-22 18:56:22,993 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 141 transitions. Word has length 15 [2024-11-22 18:56:22,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 18:56:22,993 INFO L471 AbstractCegarLoop]: Abstraction has 128 states and 141 transitions. [2024-11-22 18:56:22,993 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 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) [2024-11-22 18:56:22,993 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 141 transitions. [2024-11-22 18:56:22,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-22 18:56:22,994 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 18:56:22,994 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:56:22,994 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-22 18:56:22,994 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 55 more)] === [2024-11-22 18:56:22,995 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:56:22,995 INFO L85 PathProgramCache]: Analyzing trace with hash 1300650201, now seen corresponding path program 1 times [2024-11-22 18:56:22,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:56:22,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754237317] [2024-11-22 18:56:22,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:56:22,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:56:23,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:56:23,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:56:23,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:56:23,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [754237317] [2024-11-22 18:56:23,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [754237317] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:56:23,149 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:56:23,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 18:56:23,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179323900] [2024-11-22 18:56:23,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:56:23,149 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 18:56:23,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:56:23,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 18:56:23,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 18:56:23,150 INFO L87 Difference]: Start difference. First operand 128 states and 141 transitions. Second operand has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 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) [2024-11-22 18:56:23,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 18:56:23,304 INFO L93 Difference]: Finished difference Result 129 states and 143 transitions. [2024-11-22 18:56:23,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 18:56:23,305 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2024-11-22 18:56:23,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 18:56:23,305 INFO L225 Difference]: With dead ends: 129 [2024-11-22 18:56:23,306 INFO L226 Difference]: Without dead ends: 129 [2024-11-22 18:56:23,306 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-22 18:56:23,306 INFO L432 NwaCegarLoop]: 98 mSDtfsCounter, 13 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 219 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 317 SdHoareTripleChecker+Invalid, 227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 18:56:23,306 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 317 Invalid, 227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 219 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 18:56:23,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2024-11-22 18:56:23,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 123. [2024-11-22 18:56:23,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 93 states have (on average 1.4301075268817205) internal successors, (133), 121 states have internal predecessors, (133), 3 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:56:23,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 136 transitions. [2024-11-22 18:56:23,315 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 136 transitions. Word has length 15 [2024-11-22 18:56:23,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 18:56:23,315 INFO L471 AbstractCegarLoop]: Abstraction has 123 states and 136 transitions. [2024-11-22 18:56:23,315 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 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) [2024-11-22 18:56:23,315 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 136 transitions. [2024-11-22 18:56:23,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-22 18:56:23,316 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 18:56:23,316 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:56:23,316 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-22 18:56:23,316 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 55 more)] === [2024-11-22 18:56:23,316 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:56:23,316 INFO L85 PathProgramCache]: Analyzing trace with hash 59129036, now seen corresponding path program 1 times [2024-11-22 18:56:23,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:56:23,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635606289] [2024-11-22 18:56:23,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:56:23,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:56:23,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:56:23,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:56:23,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:56:23,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635606289] [2024-11-22 18:56:23,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [635606289] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:56:23,473 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:56:23,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-22 18:56:23,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725520904] [2024-11-22 18:56:23,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:56:23,474 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-22 18:56:23,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:56:23,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-22 18:56:23,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-22 18:56:23,475 INFO L87 Difference]: Start difference. First operand 123 states and 136 transitions. Second operand has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:56:23,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 18:56:23,685 INFO L93 Difference]: Finished difference Result 170 states and 190 transitions. [2024-11-22 18:56:23,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 18:56:23,685 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2024-11-22 18:56:23,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 18:56:23,686 INFO L225 Difference]: With dead ends: 170 [2024-11-22 18:56:23,686 INFO L226 Difference]: Without dead ends: 170 [2024-11-22 18:56:23,686 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2024-11-22 18:56:23,687 INFO L432 NwaCegarLoop]: 74 mSDtfsCounter, 215 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 252 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 317 SdHoareTripleChecker+Invalid, 258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 18:56:23,687 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [215 Valid, 317 Invalid, 258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 252 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 18:56:23,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2024-11-22 18:56:23,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 130. [2024-11-22 18:56:23,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 100 states have (on average 1.41) internal successors, (141), 128 states have internal predecessors, (141), 3 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:56:23,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 144 transitions. [2024-11-22 18:56:23,689 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 144 transitions. Word has length 18 [2024-11-22 18:56:23,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 18:56:23,690 INFO L471 AbstractCegarLoop]: Abstraction has 130 states and 144 transitions. [2024-11-22 18:56:23,690 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:56:23,690 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 144 transitions. [2024-11-22 18:56:23,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-22 18:56:23,690 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 18:56:23,691 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:56:23,691 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-22 18:56:23,691 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr28REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 55 more)] === [2024-11-22 18:56:23,691 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:56:23,691 INFO L85 PathProgramCache]: Analyzing trace with hash -87471536, now seen corresponding path program 1 times [2024-11-22 18:56:23,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:56:23,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180374977] [2024-11-22 18:56:23,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:56:23,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:56:23,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:56:23,835 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:56:23,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:56:23,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180374977] [2024-11-22 18:56:23,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [180374977] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 18:56:23,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1546574914] [2024-11-22 18:56:23,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:56:23,836 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 18:56:23,836 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 18:56:23,838 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) [2024-11-22 18:56:23,839 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-22 18:56:23,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:56:23,912 INFO L255 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-22 18:56:23,916 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 18:56:23,994 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 11 treesize of output 7 [2024-11-22 18:56:24,001 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 11 treesize of output 7 [2024-11-22 18:56:24,029 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2024-11-22 18:56:24,035 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2024-11-22 18:56:24,172 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 15 treesize of output 7 [2024-11-22 18:56:24,206 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:56:24,206 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 18:56:24,474 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 10 treesize of output 8 [2024-11-22 18:56:24,479 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 14 treesize of output 12 [2024-11-22 18:56:24,487 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 10 treesize of output 8 [2024-11-22 18:56:24,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-22 18:56:24,499 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:56:24,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1546574914] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 18:56:24,500 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 18:56:24,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 8, 7] total 15 [2024-11-22 18:56:24,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256331633] [2024-11-22 18:56:24,500 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 18:56:24,501 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-22 18:56:24,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:56:24,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-22 18:56:24,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2024-11-22 18:56:24,502 INFO L87 Difference]: Start difference. First operand 130 states and 144 transitions. Second operand has 15 states, 15 states have (on average 4.0) internal successors, (60), 15 states have internal predecessors, (60), 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) [2024-11-22 18:56:24,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 18:56:24,808 INFO L93 Difference]: Finished difference Result 168 states and 188 transitions. [2024-11-22 18:56:24,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-22 18:56:24,809 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 4.0) internal successors, (60), 15 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2024-11-22 18:56:24,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 18:56:24,810 INFO L225 Difference]: With dead ends: 168 [2024-11-22 18:56:24,810 INFO L226 Difference]: Without dead ends: 168 [2024-11-22 18:56:24,810 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 38 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=88, Invalid=292, Unknown=0, NotChecked=0, Total=380 [2024-11-22 18:56:24,811 INFO L432 NwaCegarLoop]: 72 mSDtfsCounter, 485 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 388 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 485 SdHoareTripleChecker+Valid, 405 SdHoareTripleChecker+Invalid, 403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 18:56:24,811 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [485 Valid, 405 Invalid, 403 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 388 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 18:56:24,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2024-11-22 18:56:24,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 137. [2024-11-22 18:56:24,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 107 states have (on average 1.3925233644859814) internal successors, (149), 135 states have internal predecessors, (149), 3 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:56:24,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 152 transitions. [2024-11-22 18:56:24,814 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 152 transitions. Word has length 23 [2024-11-22 18:56:24,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 18:56:24,814 INFO L471 AbstractCegarLoop]: Abstraction has 137 states and 152 transitions. [2024-11-22 18:56:24,814 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 4.0) internal successors, (60), 15 states have internal predecessors, (60), 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) [2024-11-22 18:56:24,814 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 152 transitions. [2024-11-22 18:56:24,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-22 18:56:24,815 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 18:56:24,815 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:56:24,825 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-22 18:56:25,019 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-22 18:56:25,020 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr32REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 55 more)] === [2024-11-22 18:56:25,020 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:56:25,020 INFO L85 PathProgramCache]: Analyzing trace with hash 280788054, now seen corresponding path program 1 times [2024-11-22 18:56:25,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:56:25,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1149636954] [2024-11-22 18:56:25,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:56:25,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:56:25,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:56:25,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:56:25,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:56:25,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1149636954] [2024-11-22 18:56:25,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1149636954] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:56:25,065 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:56:25,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 18:56:25,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085358459] [2024-11-22 18:56:25,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:56:25,066 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 18:56:25,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:56:25,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 18:56:25,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 18:56:25,067 INFO L87 Difference]: Start difference. First operand 137 states and 152 transitions. Second operand has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 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) [2024-11-22 18:56:25,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 18:56:25,156 INFO L93 Difference]: Finished difference Result 139 states and 152 transitions. [2024-11-22 18:56:25,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 18:56:25,156 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2024-11-22 18:56:25,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 18:56:25,157 INFO L225 Difference]: With dead ends: 139 [2024-11-22 18:56:25,159 INFO L226 Difference]: Without dead ends: 139 [2024-11-22 18:56:25,159 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-22 18:56:25,159 INFO L432 NwaCegarLoop]: 102 mSDtfsCounter, 6 mSDsluCounter, 202 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 304 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 18:56:25,160 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 304 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 18:56:25,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2024-11-22 18:56:25,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 136. [2024-11-22 18:56:25,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 106 states have (on average 1.3773584905660377) internal successors, (146), 134 states have internal predecessors, (146), 3 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:56:25,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 149 transitions. [2024-11-22 18:56:25,163 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 149 transitions. Word has length 24 [2024-11-22 18:56:25,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 18:56:25,164 INFO L471 AbstractCegarLoop]: Abstraction has 136 states and 149 transitions. [2024-11-22 18:56:25,164 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 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) [2024-11-22 18:56:25,164 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 149 transitions. [2024-11-22 18:56:25,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-22 18:56:25,165 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 18:56:25,165 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:56:25,165 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-22 18:56:25,165 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr22REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 55 more)] === [2024-11-22 18:56:25,165 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:56:25,167 INFO L85 PathProgramCache]: Analyzing trace with hash 1982967613, now seen corresponding path program 1 times [2024-11-22 18:56:25,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:56:25,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [810535687] [2024-11-22 18:56:25,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:56:25,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:56:25,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:56:25,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:56:25,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:56:25,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [810535687] [2024-11-22 18:56:25,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [810535687] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:56:25,263 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:56:25,263 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 18:56:25,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898210623] [2024-11-22 18:56:25,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:56:25,263 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 18:56:25,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:56:25,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 18:56:25,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 18:56:25,264 INFO L87 Difference]: Start difference. First operand 136 states and 149 transitions. Second operand has 6 states, 5 states have (on average 4.8) internal successors, (24), 6 states have internal predecessors, (24), 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) [2024-11-22 18:56:25,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 18:56:25,400 INFO L93 Difference]: Finished difference Result 136 states and 149 transitions. [2024-11-22 18:56:25,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 18:56:25,400 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.8) internal successors, (24), 6 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2024-11-22 18:56:25,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 18:56:25,401 INFO L225 Difference]: With dead ends: 136 [2024-11-22 18:56:25,401 INFO L226 Difference]: Without dead ends: 136 [2024-11-22 18:56:25,401 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-22 18:56:25,402 INFO L432 NwaCegarLoop]: 85 mSDtfsCounter, 26 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 242 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 265 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 18:56:25,402 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 265 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 242 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 18:56:25,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2024-11-22 18:56:25,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 135. [2024-11-22 18:56:25,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 106 states have (on average 1.3679245283018868) internal successors, (145), 133 states have internal predecessors, (145), 3 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:56:25,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 148 transitions. [2024-11-22 18:56:25,405 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 148 transitions. Word has length 24 [2024-11-22 18:56:25,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 18:56:25,405 INFO L471 AbstractCegarLoop]: Abstraction has 135 states and 148 transitions. [2024-11-22 18:56:25,405 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.8) internal successors, (24), 6 states have internal predecessors, (24), 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) [2024-11-22 18:56:25,405 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 148 transitions. [2024-11-22 18:56:25,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-22 18:56:25,406 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 18:56:25,406 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:56:25,406 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-22 18:56:25,407 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr23REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 55 more)] === [2024-11-22 18:56:25,408 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:56:25,408 INFO L85 PathProgramCache]: Analyzing trace with hash 1982967614, now seen corresponding path program 1 times [2024-11-22 18:56:25,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:56:25,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710261571] [2024-11-22 18:56:25,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:56:25,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:56:25,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:56:25,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:56:25,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:56:25,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710261571] [2024-11-22 18:56:25,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [710261571] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:56:25,569 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:56:25,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 18:56:25,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602845505] [2024-11-22 18:56:25,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:56:25,569 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 18:56:25,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:56:25,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 18:56:25,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 18:56:25,570 INFO L87 Difference]: Start difference. First operand 135 states and 148 transitions. Second operand has 6 states, 5 states have (on average 4.8) internal successors, (24), 6 states have internal predecessors, (24), 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) [2024-11-22 18:56:25,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 18:56:25,690 INFO L93 Difference]: Finished difference Result 132 states and 145 transitions. [2024-11-22 18:56:25,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 18:56:25,691 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.8) internal successors, (24), 6 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2024-11-22 18:56:25,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 18:56:25,691 INFO L225 Difference]: With dead ends: 132 [2024-11-22 18:56:25,691 INFO L226 Difference]: Without dead ends: 132 [2024-11-22 18:56:25,691 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 18:56:25,692 INFO L432 NwaCegarLoop]: 99 mSDtfsCounter, 6 mSDsluCounter, 223 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 322 SdHoareTripleChecker+Invalid, 205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 18:56:25,692 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 322 Invalid, 205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 201 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 18:56:25,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2024-11-22 18:56:25,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 126. [2024-11-22 18:56:25,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 101 states have (on average 1.3366336633663367) internal successors, (135), 124 states have internal predecessors, (135), 3 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:56:25,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 138 transitions. [2024-11-22 18:56:25,694 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 138 transitions. Word has length 24 [2024-11-22 18:56:25,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 18:56:25,695 INFO L471 AbstractCegarLoop]: Abstraction has 126 states and 138 transitions. [2024-11-22 18:56:25,695 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.8) internal successors, (24), 6 states have internal predecessors, (24), 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) [2024-11-22 18:56:25,695 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 138 transitions. [2024-11-22 18:56:25,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-22 18:56:25,695 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 18:56:25,695 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:56:25,695 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-22 18:56:25,696 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 55 more)] === [2024-11-22 18:56:25,696 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:56:25,696 INFO L85 PathProgramCache]: Analyzing trace with hash 1961787675, now seen corresponding path program 1 times [2024-11-22 18:56:25,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:56:25,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743086559] [2024-11-22 18:56:25,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:56:25,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:56:25,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:56:26,127 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:56:26,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:56:26,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743086559] [2024-11-22 18:56:26,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [743086559] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 18:56:26,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1580737035] [2024-11-22 18:56:26,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:56:26,128 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 18:56:26,129 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 18:56:26,130 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) [2024-11-22 18:56:26,131 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-22 18:56:26,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:56:26,206 INFO L255 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-22 18:56:26,209 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 18:56:26,216 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 5 [2024-11-22 18:56:26,233 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 11 treesize of output 7 [2024-11-22 18:56:26,292 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-22 18:56:26,293 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 11 treesize of output 11 [2024-11-22 18:56:26,317 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-22 18:56:26,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-22 18:56:26,322 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2024-11-22 18:56:26,358 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 16 treesize of output 8 [2024-11-22 18:56:26,396 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-22 18:56:26,413 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-22 18:56:26,446 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:56:26,446 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 18:56:26,543 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_529 (Array Int Int))) (= (select (select (store |c_#memory_int#1| (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset|) v_ArrVal_529) |c_ULTIMATE.start_main_~list~0#1.base|) (+ |c_ULTIMATE.start_main_~list~0#1.offset| 4)) 1)) is different from false [2024-11-22 18:56:26,563 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_527 (Array Int Int)) (v_ArrVal_529 (Array Int Int))) (or (= (select (select (store (store |c_#memory_int#1| |c_ULTIMATE.start_main_~end~0#1.base| v_ArrVal_527) |c_ULTIMATE.start_main_#t~malloc4#1.base| v_ArrVal_529) |c_ULTIMATE.start_main_~list~0#1.base|) (+ |c_ULTIMATE.start_main_~list~0#1.offset| 4)) 1) (not (= v_ArrVal_527 (store (select |c_#memory_int#1| |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset| (select v_ArrVal_527 |c_ULTIMATE.start_main_~end~0#1.offset|)))))) is different from false [2024-11-22 18:56:26,629 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_527 (Array Int Int)) (v_ArrVal_529 (Array Int Int)) (|v_ULTIMATE.start_main_#t~malloc4#1.base_8| Int) (|v_ULTIMATE.start_main_~end~0#1.offset_59| Int)) (or (= (select (select (store (store |c_#memory_int#1| |c_ULTIMATE.start_main_~list~0#1.base| v_ArrVal_527) |v_ULTIMATE.start_main_#t~malloc4#1.base_8| v_ArrVal_529) |c_ULTIMATE.start_main_~list~0#1.base|) (+ |c_ULTIMATE.start_main_~list~0#1.offset| 4)) 1) (not (= (select |c_#valid| |v_ULTIMATE.start_main_#t~malloc4#1.base_8|) 0)) (not (= v_ArrVal_527 (store (select |c_#memory_int#1| |c_ULTIMATE.start_main_~list~0#1.base|) |v_ULTIMATE.start_main_~end~0#1.offset_59| (select v_ArrVal_527 |v_ULTIMATE.start_main_~end~0#1.offset_59|)))) (< |c_ULTIMATE.start_main_~list~0#1.offset| |v_ULTIMATE.start_main_~end~0#1.offset_59|))) is different from false [2024-11-22 18:56:26,640 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 40 treesize of output 38 [2024-11-22 18:56:26,646 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-22 18:56:26,650 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-22 18:56:26,650 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 8 [2024-11-22 18:56:26,656 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 8 treesize of output 4 [2024-11-22 18:56:26,658 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 7 treesize of output 3 [2024-11-22 18:56:26,684 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:56:26,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1580737035] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 18:56:26,684 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 18:56:26,684 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 12, 12] total 32 [2024-11-22 18:56:26,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370657400] [2024-11-22 18:56:26,684 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 18:56:26,685 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-11-22 18:56:26,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:56:26,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-11-22 18:56:26,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=670, Unknown=11, NotChecked=168, Total=992 [2024-11-22 18:56:26,686 INFO L87 Difference]: Start difference. First operand 126 states and 138 transitions. Second operand has 32 states, 32 states have (on average 2.125) internal successors, (68), 32 states have internal predecessors, (68), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:56:27,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 18:56:27,481 INFO L93 Difference]: Finished difference Result 185 states and 204 transitions. [2024-11-22 18:56:27,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-22 18:56:27,482 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 2.125) internal successors, (68), 32 states have internal predecessors, (68), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2024-11-22 18:56:27,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 18:56:27,482 INFO L225 Difference]: With dead ends: 185 [2024-11-22 18:56:27,482 INFO L226 Difference]: Without dead ends: 185 [2024-11-22 18:56:27,483 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 40 SyntacticMatches, 1 SemanticMatches, 42 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 408 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=365, Invalid=1276, Unknown=11, NotChecked=240, Total=1892 [2024-11-22 18:56:27,483 INFO L432 NwaCegarLoop]: 56 mSDtfsCounter, 358 mSDsluCounter, 494 mSDsCounter, 0 mSdLazyCounter, 936 mSolverCounterSat, 43 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 358 SdHoareTripleChecker+Valid, 550 SdHoareTripleChecker+Invalid, 1488 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 936 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 507 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-22 18:56:27,484 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [358 Valid, 550 Invalid, 1488 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 936 Invalid, 2 Unknown, 507 Unchecked, 0.5s Time] [2024-11-22 18:56:27,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2024-11-22 18:56:27,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 141. [2024-11-22 18:56:27,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 116 states have (on average 1.3103448275862069) internal successors, (152), 139 states have internal predecessors, (152), 3 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:56:27,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 155 transitions. [2024-11-22 18:56:27,486 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 155 transitions. Word has length 28 [2024-11-22 18:56:27,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 18:56:27,487 INFO L471 AbstractCegarLoop]: Abstraction has 141 states and 155 transitions. [2024-11-22 18:56:27,487 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 2.125) internal successors, (68), 32 states have internal predecessors, (68), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:56:27,487 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 155 transitions. [2024-11-22 18:56:27,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-22 18:56:27,487 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 18:56:27,487 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:56:27,496 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-22 18:56:27,688 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,SelfDestructingSolverStorable14 [2024-11-22 18:56:27,688 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_FREE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 55 more)] === [2024-11-22 18:56:27,689 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:56:27,689 INFO L85 PathProgramCache]: Analyzing trace with hash -805505189, now seen corresponding path program 1 times [2024-11-22 18:56:27,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:56:27,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949704272] [2024-11-22 18:56:27,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:56:27,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:56:27,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:56:27,720 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-22 18:56:27,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:56:27,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949704272] [2024-11-22 18:56:27,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [949704272] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:56:27,721 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:56:27,721 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 18:56:27,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831691919] [2024-11-22 18:56:27,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:56:27,722 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:56:27,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:56:27,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:56:27,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:56:27,723 INFO L87 Difference]: Start difference. First operand 141 states and 155 transitions. Second operand has 3 states, 2 states have (on average 14.5) internal successors, (29), 3 states have internal predecessors, (29), 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) [2024-11-22 18:56:27,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 18:56:27,764 INFO L93 Difference]: Finished difference Result 142 states and 155 transitions. [2024-11-22 18:56:27,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:56:27,764 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 14.5) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2024-11-22 18:56:27,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 18:56:27,765 INFO L225 Difference]: With dead ends: 142 [2024-11-22 18:56:27,765 INFO L226 Difference]: Without dead ends: 142 [2024-11-22 18:56:27,766 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:56:27,766 INFO L432 NwaCegarLoop]: 86 mSDtfsCounter, 41 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 18:56:27,766 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 108 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 18:56:27,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2024-11-22 18:56:27,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 142. [2024-11-22 18:56:27,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 117 states have (on average 1.2991452991452992) internal successors, (152), 140 states have internal predecessors, (152), 3 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:56:27,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 155 transitions. [2024-11-22 18:56:27,769 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 155 transitions. Word has length 29 [2024-11-22 18:56:27,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 18:56:27,769 INFO L471 AbstractCegarLoop]: Abstraction has 142 states and 155 transitions. [2024-11-22 18:56:27,770 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 14.5) internal successors, (29), 3 states have internal predecessors, (29), 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) [2024-11-22 18:56:27,770 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 155 transitions. [2024-11-22 18:56:27,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-22 18:56:27,770 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 18:56:27,770 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:56:27,770 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-22 18:56:27,770 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr43REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 55 more)] === [2024-11-22 18:56:27,771 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:56:27,771 INFO L85 PathProgramCache]: Analyzing trace with hash -996365794, now seen corresponding path program 1 times [2024-11-22 18:56:27,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:56:27,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318929081] [2024-11-22 18:56:27,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:56:27,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:56:27,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:56:27,857 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:56:27,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:56:27,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318929081] [2024-11-22 18:56:27,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [318929081] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 18:56:27,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [289131931] [2024-11-22 18:56:27,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:56:27,858 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 18:56:27,858 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 18:56:27,860 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) [2024-11-22 18:56:27,861 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-22 18:56:27,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:56:27,943 INFO L255 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-22 18:56:27,944 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 18:56:27,947 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 13 treesize of output 9 [2024-11-22 18:56:27,992 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-22 18:56:27,994 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 18:56:27,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [289131931] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:56:27,994 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 18:56:27,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 9 [2024-11-22 18:56:27,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510019308] [2024-11-22 18:56:27,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:56:27,995 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 18:56:27,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:56:27,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 18:56:27,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-22 18:56:27,995 INFO L87 Difference]: Start difference. First operand 142 states and 155 transitions. Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 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) [2024-11-22 18:56:28,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 18:56:28,050 INFO L93 Difference]: Finished difference Result 149 states and 162 transitions. [2024-11-22 18:56:28,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 18:56:28,050 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2024-11-22 18:56:28,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 18:56:28,051 INFO L225 Difference]: With dead ends: 149 [2024-11-22 18:56:28,051 INFO L226 Difference]: Without dead ends: 149 [2024-11-22 18:56:28,051 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2024-11-22 18:56:28,051 INFO L432 NwaCegarLoop]: 90 mSDtfsCounter, 5 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 18:56:28,052 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 240 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 18:56:28,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2024-11-22 18:56:28,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 145. [2024-11-22 18:56:28,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 120 states have (on average 1.2916666666666667) internal successors, (155), 143 states have internal predecessors, (155), 3 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:56:28,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 158 transitions. [2024-11-22 18:56:28,055 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 158 transitions. Word has length 31 [2024-11-22 18:56:28,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 18:56:28,056 INFO L471 AbstractCegarLoop]: Abstraction has 145 states and 158 transitions. [2024-11-22 18:56:28,056 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 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) [2024-11-22 18:56:28,056 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 158 transitions. [2024-11-22 18:56:28,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-22 18:56:28,057 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 18:56:28,057 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:56:28,069 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-22 18:56:28,257 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 18:56:28,257 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr36REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 55 more)] === [2024-11-22 18:56:28,258 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:56:28,258 INFO L85 PathProgramCache]: Analyzing trace with hash 1860599924, now seen corresponding path program 1 times [2024-11-22 18:56:28,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:56:28,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714131699] [2024-11-22 18:56:28,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:56:28,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:56:28,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:56:28,402 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:56:28,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:56:28,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [714131699] [2024-11-22 18:56:28,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [714131699] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 18:56:28,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1808126893] [2024-11-22 18:56:28,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:56:28,403 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 18:56:28,403 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 18:56:28,404 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 18:56:28,405 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-22 18:56:28,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:56:28,481 INFO L255 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-22 18:56:28,486 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 18:56:28,494 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 5 [2024-11-22 18:56:28,528 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2024-11-22 18:56:28,528 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 1 case distinctions, treesize of input 14 treesize of output 13 [2024-11-22 18:56:28,553 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 11 treesize of output 7 [2024-11-22 18:56:28,583 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2024-11-22 18:56:28,727 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 25 treesize of output 13 [2024-11-22 18:56:28,763 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2024-11-22 18:56:28,777 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-22 18:56:28,777 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 18:56:29,013 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-22 18:56:29,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1808126893] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 18:56:29,013 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 18:56:29,013 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 8] total 19 [2024-11-22 18:56:29,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803446761] [2024-11-22 18:56:29,013 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 18:56:29,014 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-22 18:56:29,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:56:29,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-22 18:56:29,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=298, Unknown=0, NotChecked=0, Total=342 [2024-11-22 18:56:29,015 INFO L87 Difference]: Start difference. First operand 145 states and 158 transitions. Second operand has 19 states, 19 states have (on average 4.473684210526316) internal successors, (85), 19 states have internal predecessors, (85), 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) [2024-11-22 18:56:29,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 18:56:29,775 INFO L93 Difference]: Finished difference Result 168 states and 188 transitions. [2024-11-22 18:56:29,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-22 18:56:29,775 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 4.473684210526316) internal successors, (85), 19 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2024-11-22 18:56:29,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 18:56:29,776 INFO L225 Difference]: With dead ends: 168 [2024-11-22 18:56:29,776 INFO L226 Difference]: Without dead ends: 168 [2024-11-22 18:56:29,776 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 56 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 139 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=237, Invalid=953, Unknown=0, NotChecked=0, Total=1190 [2024-11-22 18:56:29,777 INFO L432 NwaCegarLoop]: 50 mSDtfsCounter, 406 mSDsluCounter, 489 mSDsCounter, 0 mSdLazyCounter, 1021 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 406 SdHoareTripleChecker+Valid, 539 SdHoareTripleChecker+Invalid, 1046 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1021 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-22 18:56:29,777 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [406 Valid, 539 Invalid, 1046 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1021 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-22 18:56:29,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2024-11-22 18:56:29,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 156. [2024-11-22 18:56:29,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 131 states have (on average 1.282442748091603) internal successors, (168), 154 states have internal predecessors, (168), 3 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:56:29,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 171 transitions. [2024-11-22 18:56:29,779 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 171 transitions. Word has length 32 [2024-11-22 18:56:29,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 18:56:29,780 INFO L471 AbstractCegarLoop]: Abstraction has 156 states and 171 transitions. [2024-11-22 18:56:29,780 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 4.473684210526316) internal successors, (85), 19 states have internal predecessors, (85), 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) [2024-11-22 18:56:29,780 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 171 transitions. [2024-11-22 18:56:29,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-11-22 18:56:29,780 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 18:56:29,781 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:56:29,788 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-22 18:56:29,984 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-22 18:56:29,985 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr54ASSERT_VIOLATIONMEMORY_FREE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 55 more)] === [2024-11-22 18:56:29,985 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:56:29,985 INFO L85 PathProgramCache]: Analyzing trace with hash 1844022411, now seen corresponding path program 1 times [2024-11-22 18:56:29,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:56:29,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456014052] [2024-11-22 18:56:29,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:56:29,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:56:29,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:56:30,016 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-22 18:56:30,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:56:30,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1456014052] [2024-11-22 18:56:30,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1456014052] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:56:30,017 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:56:30,017 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 18:56:30,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944565024] [2024-11-22 18:56:30,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:56:30,017 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:56:30,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:56:30,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:56:30,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:56:30,018 INFO L87 Difference]: Start difference. First operand 156 states and 171 transitions. Second operand has 3 states, 2 states have (on average 16.5) internal successors, (33), 3 states have internal predecessors, (33), 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) [2024-11-22 18:56:30,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 18:56:30,043 INFO L93 Difference]: Finished difference Result 155 states and 169 transitions. [2024-11-22 18:56:30,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:56:30,043 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 16.5) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2024-11-22 18:56:30,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 18:56:30,044 INFO L225 Difference]: With dead ends: 155 [2024-11-22 18:56:30,044 INFO L226 Difference]: Without dead ends: 155 [2024-11-22 18:56:30,044 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:56:30,044 INFO L432 NwaCegarLoop]: 75 mSDtfsCounter, 59 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 18:56:30,044 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 78 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 18:56:30,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2024-11-22 18:56:30,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 155. [2024-11-22 18:56:30,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 131 states have (on average 1.2671755725190839) internal successors, (166), 153 states have internal predecessors, (166), 3 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:56:30,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 169 transitions. [2024-11-22 18:56:30,047 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 169 transitions. Word has length 33 [2024-11-22 18:56:30,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 18:56:30,047 INFO L471 AbstractCegarLoop]: Abstraction has 155 states and 169 transitions. [2024-11-22 18:56:30,047 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 16.5) internal successors, (33), 3 states have internal predecessors, (33), 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) [2024-11-22 18:56:30,047 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 169 transitions. [2024-11-22 18:56:30,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-11-22 18:56:30,049 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 18:56:30,049 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:56:30,049 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-22 18:56:30,050 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr28REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 55 more)] === [2024-11-22 18:56:30,050 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:56:30,050 INFO L85 PathProgramCache]: Analyzing trace with hash -1162191007, now seen corresponding path program 1 times [2024-11-22 18:56:30,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:56:30,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1960917483] [2024-11-22 18:56:30,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:56:30,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:56:30,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:56:30,309 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:56:30,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:56:30,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1960917483] [2024-11-22 18:56:30,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1960917483] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 18:56:30,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1782670474] [2024-11-22 18:56:30,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:56:30,310 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 18:56:30,310 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 18:56:30,312 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 18:56:30,314 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-22 18:56:30,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:56:30,400 INFO L255 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-11-22 18:56:30,402 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 18:56:30,405 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 5 [2024-11-22 18:56:30,473 INFO L349 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2024-11-22 18:56:30,474 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2024-11-22 18:56:30,502 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-22 18:56:30,596 INFO L349 Elim1Store]: treesize reduction 17, result has 22.7 percent of original size [2024-11-22 18:56:30,596 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 1 case distinctions, treesize of input 33 treesize of output 24 [2024-11-22 18:56:30,638 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2024-11-22 18:56:30,638 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 33 [2024-11-22 18:56:30,737 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 25 treesize of output 13 [2024-11-22 18:56:30,787 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:56:30,787 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 18:56:30,998 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-22 18:56:30,998 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 21 [2024-11-22 18:56:31,005 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-22 18:56:31,005 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 34 treesize of output 37 [2024-11-22 18:56:31,013 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 11 treesize of output 9 [2024-11-22 18:56:31,466 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:56:31,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1782670474] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 18:56:31,467 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 18:56:31,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 11, 11] total 32 [2024-11-22 18:56:31,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770663880] [2024-11-22 18:56:31,467 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 18:56:31,467 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-11-22 18:56:31,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:56:31,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-11-22 18:56:31,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=137, Invalid=912, Unknown=7, NotChecked=0, Total=1056 [2024-11-22 18:56:31,469 INFO L87 Difference]: Start difference. First operand 155 states and 169 transitions. Second operand has 33 states, 32 states have (on average 2.75) internal successors, (88), 33 states have internal predecessors, (88), 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) [2024-11-22 18:56:32,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 18:56:32,412 INFO L93 Difference]: Finished difference Result 251 states and 279 transitions. [2024-11-22 18:56:32,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-22 18:56:32,412 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 32 states have (on average 2.75) internal successors, (88), 33 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2024-11-22 18:56:32,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 18:56:32,413 INFO L225 Difference]: With dead ends: 251 [2024-11-22 18:56:32,413 INFO L226 Difference]: Without dead ends: 251 [2024-11-22 18:56:32,414 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 387 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=237, Invalid=1396, Unknown=7, NotChecked=0, Total=1640 [2024-11-22 18:56:32,415 INFO L432 NwaCegarLoop]: 63 mSDtfsCounter, 408 mSDsluCounter, 743 mSDsCounter, 0 mSdLazyCounter, 1620 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 408 SdHoareTripleChecker+Valid, 806 SdHoareTripleChecker+Invalid, 1696 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 1620 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-22 18:56:32,415 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [408 Valid, 806 Invalid, 1696 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 1620 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-22 18:56:32,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2024-11-22 18:56:32,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 178. [2024-11-22 18:56:32,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 154 states have (on average 1.2532467532467533) internal successors, (193), 176 states have internal predecessors, (193), 3 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:56:32,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 196 transitions. [2024-11-22 18:56:32,421 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 196 transitions. Word has length 33 [2024-11-22 18:56:32,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 18:56:32,421 INFO L471 AbstractCegarLoop]: Abstraction has 178 states and 196 transitions. [2024-11-22 18:56:32,421 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 32 states have (on average 2.75) internal successors, (88), 33 states have internal predecessors, (88), 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) [2024-11-22 18:56:32,421 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 196 transitions. [2024-11-22 18:56:32,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-11-22 18:56:32,421 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 18:56:32,421 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:56:32,429 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-22 18:56:32,622 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 18:56:32,623 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr29REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 55 more)] === [2024-11-22 18:56:32,623 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:56:32,623 INFO L85 PathProgramCache]: Analyzing trace with hash -1162191006, now seen corresponding path program 1 times [2024-11-22 18:56:32,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:56:32,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411865532] [2024-11-22 18:56:32,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:56:32,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:56:32,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:56:32,976 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:56:32,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:56:32,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411865532] [2024-11-22 18:56:32,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1411865532] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 18:56:32,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [338805898] [2024-11-22 18:56:32,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:56:32,977 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 18:56:32,977 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 18:56:32,980 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 18:56:32,981 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-22 18:56:33,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:56:33,069 INFO L255 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 42 conjuncts are in the unsatisfiable core [2024-11-22 18:56:33,071 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 18:56:33,074 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 5 [2024-11-22 18:56:33,095 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-22 18:56:33,096 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 11 treesize of output 11 [2024-11-22 18:56:33,100 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-22 18:56:33,125 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-22 18:56:33,129 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 11 treesize of output 7 [2024-11-22 18:56:33,220 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2024-11-22 18:56:33,220 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 1 case distinctions, treesize of input 16 treesize of output 15 [2024-11-22 18:56:33,224 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 5 treesize of output 3 [2024-11-22 18:56:33,232 INFO L349 Elim1Store]: treesize reduction 17, result has 22.7 percent of original size [2024-11-22 18:56:33,232 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 1 case distinctions, treesize of input 33 treesize of output 24 [2024-11-22 18:56:33,271 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2024-11-22 18:56:33,271 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 45 [2024-11-22 18:56:33,279 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 11 [2024-11-22 18:56:33,363 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 25 treesize of output 13 [2024-11-22 18:56:33,366 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2024-11-22 18:56:33,404 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:56:33,404 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 18:56:33,531 WARN L851 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_915 (Array Int Int)) (v_ArrVal_914 (Array Int Int))) (<= (+ 8 (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_~end~0#1.base| v_ArrVal_914) |c_ULTIMATE.start_main_~list~0#1.base|) |c_ULTIMATE.start_main_~list~0#1.offset|)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~end~0#1.base| v_ArrVal_915) |c_ULTIMATE.start_main_~list~0#1.base|) |c_ULTIMATE.start_main_~list~0#1.offset|)))) (forall ((v_ArrVal_914 (Array Int Int))) (<= 0 (+ 4 (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_~end~0#1.base| v_ArrVal_914) |c_ULTIMATE.start_main_~list~0#1.base|) |c_ULTIMATE.start_main_~list~0#1.offset|))))) is different from false [2024-11-22 18:56:33,548 WARN L851 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_914 (Array Int Int))) (<= 0 (+ (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem5#1.base| v_ArrVal_914) |c_ULTIMATE.start_main_~list~0#1.base|) |c_ULTIMATE.start_main_~list~0#1.offset|) 4))) (forall ((v_ArrVal_915 (Array Int Int)) (v_ArrVal_914 (Array Int Int))) (<= (+ (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem5#1.base| v_ArrVal_914) |c_ULTIMATE.start_main_~list~0#1.base|) |c_ULTIMATE.start_main_~list~0#1.offset|) 8) (select |c_#length| (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem5#1.base| v_ArrVal_915) |c_ULTIMATE.start_main_~list~0#1.base|) |c_ULTIMATE.start_main_~list~0#1.offset|))))) is different from false [2024-11-22 18:56:33,555 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset|))) (and (forall ((v_ArrVal_915 (Array Int Int)) (v_ArrVal_914 (Array Int Int))) (<= (+ (select (select (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_914) |c_ULTIMATE.start_main_~list~0#1.base|) |c_ULTIMATE.start_main_~list~0#1.offset|) 8) (select |c_#length| (select (select (store |c_#memory_$Pointer$#1.base| .cse0 v_ArrVal_915) |c_ULTIMATE.start_main_~list~0#1.base|) |c_ULTIMATE.start_main_~list~0#1.offset|)))) (forall ((v_ArrVal_914 (Array Int Int))) (<= 0 (+ (select (select (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_914) |c_ULTIMATE.start_main_~list~0#1.base|) |c_ULTIMATE.start_main_~list~0#1.offset|) 4))))) is different from false [2024-11-22 18:56:33,566 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-22 18:56:33,566 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 38 [2024-11-22 18:56:33,570 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-22 18:56:33,570 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 30 [2024-11-22 18:56:33,577 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-22 18:56:33,577 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 52 treesize of output 55 [2024-11-22 18:56:33,590 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-22 18:56:33,591 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 82 treesize of output 81 [2024-11-22 18:56:33,595 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 11 treesize of output 9 [2024-11-22 18:56:33,597 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 9 treesize of output 7 [2024-11-22 18:56:33,617 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-22 18:56:33,617 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 21 [2024-11-22 18:56:33,619 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-22 18:56:33,621 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 10 [2024-11-22 18:56:33,709 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:56:33,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [338805898] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 18:56:33,710 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 18:56:33,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11, 11] total 31 [2024-11-22 18:56:33,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813093499] [2024-11-22 18:56:33,710 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 18:56:33,711 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-11-22 18:56:33,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:56:33,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-11-22 18:56:33,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=719, Unknown=3, NotChecked=168, Total=992 [2024-11-22 18:56:33,711 INFO L87 Difference]: Start difference. First operand 178 states and 196 transitions. Second operand has 32 states, 31 states have (on average 2.838709677419355) internal successors, (88), 32 states have internal predecessors, (88), 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) [2024-11-22 18:56:34,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 18:56:34,636 INFO L93 Difference]: Finished difference Result 228 states and 252 transitions. [2024-11-22 18:56:34,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-22 18:56:34,636 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 31 states have (on average 2.838709677419355) internal successors, (88), 32 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2024-11-22 18:56:34,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 18:56:34,637 INFO L225 Difference]: With dead ends: 228 [2024-11-22 18:56:34,637 INFO L226 Difference]: Without dead ends: 228 [2024-11-22 18:56:34,637 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 50 SyntacticMatches, 2 SemanticMatches, 46 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 287 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=290, Invalid=1699, Unknown=3, NotChecked=264, Total=2256 [2024-11-22 18:56:34,638 INFO L432 NwaCegarLoop]: 67 mSDtfsCounter, 385 mSDsluCounter, 748 mSDsCounter, 0 mSdLazyCounter, 1501 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 385 SdHoareTripleChecker+Valid, 815 SdHoareTripleChecker+Invalid, 2071 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 1501 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 516 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-22 18:56:34,638 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [385 Valid, 815 Invalid, 2071 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 1501 Invalid, 0 Unknown, 516 Unchecked, 0.6s Time] [2024-11-22 18:56:34,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2024-11-22 18:56:34,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 181. [2024-11-22 18:56:34,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 157 states have (on average 1.2484076433121019) internal successors, (196), 179 states have internal predecessors, (196), 3 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:56:34,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 199 transitions. [2024-11-22 18:56:34,641 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 199 transitions. Word has length 33 [2024-11-22 18:56:34,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 18:56:34,641 INFO L471 AbstractCegarLoop]: Abstraction has 181 states and 199 transitions. [2024-11-22 18:56:34,641 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 31 states have (on average 2.838709677419355) internal successors, (88), 32 states have internal predecessors, (88), 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) [2024-11-22 18:56:34,642 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 199 transitions. [2024-11-22 18:56:34,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-11-22 18:56:34,642 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 18:56:34,642 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:56:34,652 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-22 18:56:34,846 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 18:56:34,847 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 55 more)] === [2024-11-22 18:56:34,847 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:56:34,847 INFO L85 PathProgramCache]: Analyzing trace with hash 807186605, now seen corresponding path program 1 times [2024-11-22 18:56:34,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:56:34,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627099931] [2024-11-22 18:56:34,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:56:34,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:56:34,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:56:35,431 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:56:35,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:56:35,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [627099931] [2024-11-22 18:56:35,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [627099931] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 18:56:35,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [284966306] [2024-11-22 18:56:35,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:56:35,432 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 18:56:35,432 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 18:56:35,433 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 18:56:35,435 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-22 18:56:35,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:56:35,551 INFO L255 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 45 conjuncts are in the unsatisfiable core [2024-11-22 18:56:35,554 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 18:56:35,561 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 5 [2024-11-22 18:56:35,580 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 11 treesize of output 7 [2024-11-22 18:56:35,643 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-22 18:56:35,643 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 11 treesize of output 11 [2024-11-22 18:56:35,672 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-22 18:56:35,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-22 18:56:35,681 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2024-11-22 18:56:35,720 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 16 treesize of output 8 [2024-11-22 18:56:35,766 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-22 18:56:35,781 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-22 18:56:35,812 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-22 18:56:35,818 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-22 18:56:35,862 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2024-11-22 18:56:35,904 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2024-11-22 18:56:35,904 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 1 case distinctions, treesize of input 16 treesize of output 15 [2024-11-22 18:56:35,940 INFO L349 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2024-11-22 18:56:35,940 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 1 case distinctions, treesize of input 23 treesize of output 26 [2024-11-22 18:56:35,993 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:56:35,993 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 18:56:36,045 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-22 18:56:36,045 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 21 [2024-11-22 18:56:36,096 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_arrayElimArr_5 (Array Int Int)) (|ULTIMATE.start_main_~end~0#1.base| Int)) (or (= (select (select (store |c_#memory_int#1| |ULTIMATE.start_main_~end~0#1.base| v_arrayElimArr_5) |c_ULTIMATE.start_main_~list~0#1.base|) (+ |c_ULTIMATE.start_main_~list~0#1.offset| 4)) 1) (not (= (select v_arrayElimArr_5 (+ |c_ULTIMATE.start_main_#t~mem8#1.offset| 4)) 1)))) is different from false [2024-11-22 18:56:36,186 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_arrayElimArr_5 (Array Int Int)) (|v_ULTIMATE.start_main_~end~0#1.base_99| Int) (v_ArrVal_1058 (Array Int Int))) (or (not (= (select v_arrayElimArr_5 (+ |c_ULTIMATE.start_main_#t~malloc7#1.offset| 4)) 1)) (= (select (select (store (store |c_#memory_int#1| |c_ULTIMATE.start_main_~end~0#1.base| v_ArrVal_1058) |v_ULTIMATE.start_main_~end~0#1.base_99| v_arrayElimArr_5) |c_ULTIMATE.start_main_~list~0#1.base|) (+ |c_ULTIMATE.start_main_~list~0#1.offset| 4)) 1))) is different from false [2024-11-22 18:56:36,192 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_arrayElimArr_5 (Array Int Int)) (|v_ULTIMATE.start_main_~end~0#1.base_99| Int) (v_ArrVal_1058 (Array Int Int))) (or (= (select (select (store (store |c_#memory_int#1| |c_ULTIMATE.start_main_~end~0#1.base| v_ArrVal_1058) |v_ULTIMATE.start_main_~end~0#1.base_99| v_arrayElimArr_5) |c_ULTIMATE.start_main_~list~0#1.base|) (+ |c_ULTIMATE.start_main_~list~0#1.offset| 4)) 1) (not (= (select v_arrayElimArr_5 4) 1)))) is different from false [2024-11-22 18:56:36,213 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_arrayElimArr_5 (Array Int Int)) (|v_ULTIMATE.start_main_~end~0#1.base_99| Int) (v_ArrVal_1058 (Array Int Int))) (or (= (select (select (store (store |c_#memory_int#1| |c_ULTIMATE.start_main_#t~mem5#1.base| v_ArrVal_1058) |v_ULTIMATE.start_main_~end~0#1.base_99| v_arrayElimArr_5) |c_ULTIMATE.start_main_~list~0#1.base|) (+ |c_ULTIMATE.start_main_~list~0#1.offset| 4)) 1) (not (= (select v_arrayElimArr_5 4) 1)))) is different from false [2024-11-22 18:56:36,290 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_arrayElimArr_5 (Array Int Int)) (|v_ULTIMATE.start_main_~end~0#1.base_99| Int) (v_ArrVal_1058 (Array Int Int)) (v_ArrVal_1054 (Array Int Int))) (or (= (select (select (store (store (store |c_#memory_int#1| |c_ULTIMATE.start_main_~end~0#1.base| v_ArrVal_1054) |c_ULTIMATE.start_main_#t~malloc4#1.base| v_ArrVal_1058) |v_ULTIMATE.start_main_~end~0#1.base_99| v_arrayElimArr_5) |c_ULTIMATE.start_main_~list~0#1.base|) (+ |c_ULTIMATE.start_main_~list~0#1.offset| 4)) 1) (not (= (store (select |c_#memory_int#1| |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset| (select v_ArrVal_1054 |c_ULTIMATE.start_main_~end~0#1.offset|)) v_ArrVal_1054)) (not (= (select v_arrayElimArr_5 4) 1)))) is different from false [2024-11-22 18:56:36,357 WARN L851 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~end~0#1.offset_82| Int) (v_arrayElimArr_5 (Array Int Int)) (|v_ULTIMATE.start_main_~end~0#1.base_99| Int) (|v_ULTIMATE.start_main_#t~malloc4#1.base_18| Int) (v_ArrVal_1058 (Array Int Int)) (v_ArrVal_1054 (Array Int Int))) (or (not (= 0 (select |c_#valid| |v_ULTIMATE.start_main_#t~malloc4#1.base_18|))) (= (select (select (store (store (store |c_#memory_int#1| |c_ULTIMATE.start_main_~list~0#1.base| v_ArrVal_1054) |v_ULTIMATE.start_main_#t~malloc4#1.base_18| v_ArrVal_1058) |v_ULTIMATE.start_main_~end~0#1.base_99| v_arrayElimArr_5) |c_ULTIMATE.start_main_~list~0#1.base|) (+ |c_ULTIMATE.start_main_~list~0#1.offset| 4)) 1) (< |c_ULTIMATE.start_main_~list~0#1.offset| |v_ULTIMATE.start_main_~end~0#1.offset_82|) (not (= (store (select |c_#memory_int#1| |c_ULTIMATE.start_main_~list~0#1.base|) |v_ULTIMATE.start_main_~end~0#1.offset_82| (select v_ArrVal_1054 |v_ULTIMATE.start_main_~end~0#1.offset_82|)) v_ArrVal_1054)) (not (= (select v_arrayElimArr_5 4) 1)))) is different from false [2024-11-22 18:56:36,363 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 74 treesize of output 72 [2024-11-22 18:56:36,371 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-22 18:56:36,372 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 64 treesize of output 62 [2024-11-22 18:56:36,379 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-22 18:56:36,384 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 24 treesize of output 20 [2024-11-22 18:56:36,427 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:56:36,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [284966306] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 18:56:36,428 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 18:56:36,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 17, 17] total 46 [2024-11-22 18:56:36,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796551086] [2024-11-22 18:56:36,428 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 18:56:36,429 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2024-11-22 18:56:36,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:56:36,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2024-11-22 18:56:36,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=249, Invalid=1291, Unknown=44, NotChecked=486, Total=2070 [2024-11-22 18:56:36,430 INFO L87 Difference]: Start difference. First operand 181 states and 199 transitions. Second operand has 46 states, 46 states have (on average 1.934782608695652) internal successors, (89), 46 states have internal predecessors, (89), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:56:49,369 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-22 18:56:53,408 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-22 18:56:57,429 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-22 18:56:57,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 18:56:57,745 INFO L93 Difference]: Finished difference Result 186 states and 204 transitions. [2024-11-22 18:56:57,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-22 18:56:57,747 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 46 states have (on average 1.934782608695652) internal successors, (89), 46 states have internal predecessors, (89), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2024-11-22 18:56:57,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 18:56:57,748 INFO L225 Difference]: With dead ends: 186 [2024-11-22 18:56:57,748 INFO L226 Difference]: Without dead ends: 186 [2024-11-22 18:56:57,749 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 46 SyntacticMatches, 5 SemanticMatches, 62 ConstructedPredicates, 6 IntricatePredicates, 1 DeprecatedPredicates, 830 ImplicationChecksByTransitivity, 9.2s TimeCoverageRelationStatistics Valid=664, Invalid=2618, Unknown=48, NotChecked=702, Total=4032 [2024-11-22 18:56:57,749 INFO L432 NwaCegarLoop]: 63 mSDtfsCounter, 267 mSDsluCounter, 612 mSDsCounter, 0 mSdLazyCounter, 1173 mSolverCounterSat, 64 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 267 SdHoareTripleChecker+Valid, 675 SdHoareTripleChecker+Invalid, 1940 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 1173 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 698 IncrementalHoareTripleChecker+Unchecked, 12.7s IncrementalHoareTripleChecker+Time [2024-11-22 18:56:57,749 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [267 Valid, 675 Invalid, 1940 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 1173 Invalid, 5 Unknown, 698 Unchecked, 12.7s Time] [2024-11-22 18:56:57,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2024-11-22 18:56:57,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 165. [2024-11-22 18:56:57,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 142 states have (on average 1.2535211267605635) internal successors, (178), 163 states have internal predecessors, (178), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:56:57,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 180 transitions. [2024-11-22 18:56:57,755 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 180 transitions. Word has length 35 [2024-11-22 18:56:57,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 18:56:57,756 INFO L471 AbstractCegarLoop]: Abstraction has 165 states and 180 transitions. [2024-11-22 18:56:57,756 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 46 states have (on average 1.934782608695652) internal successors, (89), 46 states have internal predecessors, (89), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:56:57,756 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 180 transitions. [2024-11-22 18:56:57,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-11-22 18:56:57,756 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 18:56:57,756 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:56:57,763 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-22 18:56:57,956 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 18:56:57,957 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr56ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 55 more)] === [2024-11-22 18:56:57,957 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:56:57,957 INFO L85 PathProgramCache]: Analyzing trace with hash -1715947698, now seen corresponding path program 1 times [2024-11-22 18:56:57,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:56:57,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100379811] [2024-11-22 18:56:57,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:56:57,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:56:57,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:56:58,172 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-22 18:56:58,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:56:58,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100379811] [2024-11-22 18:56:58,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1100379811] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 18:56:58,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1676234864] [2024-11-22 18:56:58,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:56:58,173 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 18:56:58,173 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 18:56:58,175 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 18:56:58,175 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-22 18:56:58,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:56:58,267 INFO L255 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-22 18:56:58,270 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 18:56:58,310 INFO L349 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2024-11-22 18:56:58,310 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 27 [2024-11-22 18:56:58,435 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 29 [2024-11-22 18:56:58,475 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 37 [2024-11-22 18:56:58,500 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-22 18:56:58,501 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 18:56:58,665 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-22 18:56:58,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1676234864] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 18:56:58,665 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 18:56:58,665 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 13 [2024-11-22 18:56:58,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108246215] [2024-11-22 18:56:58,665 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 18:56:58,666 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-22 18:56:58,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:56:58,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-22 18:56:58,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2024-11-22 18:56:58,666 INFO L87 Difference]: Start difference. First operand 165 states and 180 transitions. Second operand has 14 states, 13 states have (on average 6.846153846153846) internal successors, (89), 14 states have internal predecessors, (89), 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) [2024-11-22 18:56:58,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 18:56:58,960 INFO L93 Difference]: Finished difference Result 175 states and 189 transitions. [2024-11-22 18:56:58,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 18:56:58,961 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 6.846153846153846) internal successors, (89), 14 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2024-11-22 18:56:58,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 18:56:58,962 INFO L225 Difference]: With dead ends: 175 [2024-11-22 18:56:58,962 INFO L226 Difference]: Without dead ends: 150 [2024-11-22 18:56:58,962 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 61 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=184, Unknown=0, NotChecked=0, Total=240 [2024-11-22 18:56:58,962 INFO L432 NwaCegarLoop]: 74 mSDtfsCounter, 7 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 353 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 324 SdHoareTripleChecker+Invalid, 354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 18:56:58,962 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 324 Invalid, 354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 353 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 18:56:58,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2024-11-22 18:56:58,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2024-11-22 18:56:58,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 127 states have (on average 1.2755905511811023) internal successors, (162), 148 states have internal predecessors, (162), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:56:58,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 164 transitions. [2024-11-22 18:56:58,965 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 164 transitions. Word has length 35 [2024-11-22 18:56:58,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 18:56:58,965 INFO L471 AbstractCegarLoop]: Abstraction has 150 states and 164 transitions. [2024-11-22 18:56:58,965 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 6.846153846153846) internal successors, (89), 14 states have internal predecessors, (89), 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) [2024-11-22 18:56:58,965 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 164 transitions. [2024-11-22 18:56:58,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-22 18:56:58,965 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 18:56:58,965 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:56:58,972 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-22 18:56:59,166 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2024-11-22 18:56:59,167 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr28REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 55 more)] === [2024-11-22 18:56:59,167 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:56:59,167 INFO L85 PathProgramCache]: Analyzing trace with hash -1281300717, now seen corresponding path program 2 times [2024-11-22 18:56:59,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:56:59,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209385867] [2024-11-22 18:56:59,167 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 18:56:59,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:56:59,183 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-22 18:56:59,183 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 18:56:59,632 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:56:59,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:56:59,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [209385867] [2024-11-22 18:56:59,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [209385867] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 18:56:59,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1212896528] [2024-11-22 18:56:59,633 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 18:56:59,633 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 18:56:59,633 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 18:56:59,637 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 18:56:59,639 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-22 18:56:59,749 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-22 18:56:59,749 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 18:56:59,751 INFO L255 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 57 conjuncts are in the unsatisfiable core [2024-11-22 18:56:59,753 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 18:56:59,771 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 5 [2024-11-22 18:56:59,839 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-22 18:56:59,840 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 11 treesize of output 11 [2024-11-22 18:56:59,876 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 15 treesize of output 1 [2024-11-22 18:56:59,881 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-22 18:57:00,016 INFO L349 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2024-11-22 18:57:00,016 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 1 case distinctions, treesize of input 26 treesize of output 21 [2024-11-22 18:57:00,025 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-22 18:57:00,032 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2024-11-22 18:57:00,032 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 1 case distinctions, treesize of input 27 treesize of output 22 [2024-11-22 18:57:00,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-22 18:57:00,123 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-22 18:57:00,126 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2024-11-22 18:57:00,126 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 93 treesize of output 66 [2024-11-22 18:57:00,132 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 28 [2024-11-22 18:57:00,598 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-22 18:57:00,599 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-22 18:57:00,604 INFO L349 Elim1Store]: treesize reduction 17, result has 15.0 percent of original size [2024-11-22 18:57:00,604 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 4 new quantified variables, introduced 3 case distinctions, treesize of input 61 treesize of output 35 [2024-11-22 18:57:00,613 INFO L349 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2024-11-22 18:57:00,614 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 19 [2024-11-22 18:57:00,667 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:57:00,667 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 18:57:01,085 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset|))) (let ((.cse4 (select |c_#memory_$Pointer$#1.offset| .cse1)) (.cse5 (select (select |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset|)) (.cse2 (select |c_#memory_$Pointer$#1.base| .cse1))) (and (forall ((|ULTIMATE.start_main_~null~0#1.base| Int) (v_ArrVal_1231 Int) (|v_ULTIMATE.start_main_~end~0#1.offset_95| Int) (v_ArrVal_1230 (Array Int Int))) (let ((.cse3 (+ |v_ULTIMATE.start_main_~end~0#1.offset_95| 4))) (or (= |ULTIMATE.start_main_~null~0#1.base| (select (let ((.cse0 (store |c_#memory_$Pointer$#1.base| .cse1 (store (store .cse2 |v_ULTIMATE.start_main_~end~0#1.offset_95| |ULTIMATE.start_main_~null~0#1.base|) .cse3 v_ArrVal_1231)))) (select .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~list~0#1.base|) |c_ULTIMATE.start_main_~list~0#1.offset|))) (select (select (store |c_#memory_$Pointer$#1.offset| .cse1 v_ArrVal_1230) |c_ULTIMATE.start_main_~list~0#1.base|) |c_ULTIMATE.start_main_~list~0#1.offset|))) (not (= (store (store .cse4 |v_ULTIMATE.start_main_~end~0#1.offset_95| |c_ULTIMATE.start_main_~null~0#1.offset|) .cse3 (select v_ArrVal_1230 .cse3)) v_ArrVal_1230)) (< .cse5 |v_ULTIMATE.start_main_~end~0#1.offset_95|) (< |v_ULTIMATE.start_main_~end~0#1.offset_95| 0)))) (forall ((|ULTIMATE.start_main_~null~0#1.base| Int) (v_ArrVal_1231 Int) (|v_ULTIMATE.start_main_~end~0#1.offset_95| Int) (v_ArrVal_1230 (Array Int Int))) (let ((.cse6 (+ |v_ULTIMATE.start_main_~end~0#1.offset_95| 4))) (or (not (= (store (store .cse4 |v_ULTIMATE.start_main_~end~0#1.offset_95| |c_ULTIMATE.start_main_~null~0#1.offset|) .cse6 (select v_ArrVal_1230 .cse6)) v_ArrVal_1230)) (< .cse5 |v_ULTIMATE.start_main_~end~0#1.offset_95|) (< |v_ULTIMATE.start_main_~end~0#1.offset_95| 0) (= (let ((.cse7 (store |c_#memory_$Pointer$#1.offset| .cse1 v_ArrVal_1230))) (select (select .cse7 (select (select (store |c_#memory_$Pointer$#1.base| .cse1 (store (store .cse2 |v_ULTIMATE.start_main_~end~0#1.offset_95| |ULTIMATE.start_main_~null~0#1.base|) .cse6 v_ArrVal_1231)) |c_ULTIMATE.start_main_~list~0#1.base|) |c_ULTIMATE.start_main_~list~0#1.offset|)) (select (select .cse7 |c_ULTIMATE.start_main_~list~0#1.base|) |c_ULTIMATE.start_main_~list~0#1.offset|))) |c_ULTIMATE.start_main_~null~0#1.offset|))))))) is different from false [2024-11-22 18:57:01,262 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-22 18:57:01,263 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 6 new quantified variables, introduced 10 case distinctions, treesize of input 50852 treesize of output 47537 [2024-11-22 18:57:02,041 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-22 18:57:02,042 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 3468 treesize of output 3196 [2024-11-22 18:57:02,213 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-22 18:57:02,214 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 3797 treesize of output 3813