./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 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/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-3061b6d-m [2024-11-19 06:56:53,651 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 06:56:53,713 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-19 06:56:53,719 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 06:56:53,720 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 06:56:53,744 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 06:56:53,744 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 06:56:53,745 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 06:56:53,745 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 06:56:53,746 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 06:56:53,746 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 06:56:53,746 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 06:56:53,747 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 06:56:53,748 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 06:56:53,748 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 06:56:53,749 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 06:56:53,749 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 06:56:53,749 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 06:56:53,749 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 06:56:53,749 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 06:56:53,750 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-19 06:56:53,751 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-19 06:56:53,751 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-19 06:56:53,751 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 06:56:53,751 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-19 06:56:53,752 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 06:56:53,752 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-19 06:56:53,752 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 06:56:53,752 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 06:56:53,752 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 06:56:53,752 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 06:56:53,753 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 06:56:53,753 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 06:56:53,753 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 06:56:53,753 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 06:56:53,753 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 06:56:53,754 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 06:56:53,754 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 06:56:53,754 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 06:56:53,754 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 06:56:53,754 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 06:56:53,755 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 06:56:53,755 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b05b18c0458ef705f828769f88cc2a590589ce4d5c3f0e48f99be90a949f7ed4 [2024-11-19 06:56:53,936 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 06:56:53,954 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 06:56:53,956 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 06:56:53,958 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 06:56:53,958 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 06:56:53,959 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/forester-heap/sll-rb-sentinel-1.i [2024-11-19 06:56:55,169 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 06:56:55,343 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 06:56:55,343 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/sll-rb-sentinel-1.i [2024-11-19 06:56:55,352 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fe18c32d2/1e79a866e4a74f8f908c102bfed16611/FLAGed300f4cc [2024-11-19 06:56:55,376 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fe18c32d2/1e79a866e4a74f8f908c102bfed16611 [2024-11-19 06:56:55,378 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 06:56:55,379 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 06:56:55,380 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 06:56:55,380 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 06:56:55,384 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 06:56:55,384 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:56:55" (1/1) ... [2024-11-19 06:56:55,385 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52530ce7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:56:55, skipping insertion in model container [2024-11-19 06:56:55,385 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:56:55" (1/1) ... [2024-11-19 06:56:55,422 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 06:56:55,644 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 06:56:55,654 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 06:56:55,686 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 06:56:55,706 INFO L204 MainTranslator]: Completed translation [2024-11-19 06:56:55,707 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:56:55 WrapperNode [2024-11-19 06:56:55,707 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 06:56:55,708 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 06:56:55,708 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 06:56:55,708 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 06:56:55,713 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:56:55" (1/1) ... [2024-11-19 06:56:55,725 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:56:55" (1/1) ... [2024-11-19 06:56:55,741 INFO L138 Inliner]: procedures = 119, calls = 40, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 135 [2024-11-19 06:56:55,742 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 06:56:55,744 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 06:56:55,744 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 06:56:55,744 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 06:56:55,752 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:56:55" (1/1) ... [2024-11-19 06:56:55,752 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:56:55" (1/1) ... [2024-11-19 06:56:55,755 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:56:55" (1/1) ... [2024-11-19 06:56:55,767 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]. [2024-11-19 06:56:55,768 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:56:55" (1/1) ... [2024-11-19 06:56:55,768 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:56:55" (1/1) ... [2024-11-19 06:56:55,778 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:56:55" (1/1) ... [2024-11-19 06:56:55,782 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:56:55" (1/1) ... [2024-11-19 06:56:55,783 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:56:55" (1/1) ... [2024-11-19 06:56:55,784 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:56:55" (1/1) ... [2024-11-19 06:56:55,786 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 06:56:55,787 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 06:56:55,787 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 06:56:55,787 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 06:56:55,788 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:56:55" (1/1) ... [2024-11-19 06:56:55,794 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 06:56:55,802 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 06:56:55,812 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) [2024-11-19 06:56:55,815 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 [2024-11-19 06:56:55,846 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-11-19 06:56:55,847 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-11-19 06:56:55,847 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-19 06:56:55,847 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-19 06:56:55,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-19 06:56:55,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-19 06:56:55,848 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-19 06:56:55,848 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 06:56:55,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-19 06:56:55,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-19 06:56:55,848 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-19 06:56:55,849 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-19 06:56:55,850 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-19 06:56:55,850 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 06:56:55,850 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-19 06:56:55,850 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 06:56:55,850 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 06:56:55,942 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 06:56:55,943 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 06:56:56,271 INFO L? ?]: Removed 107 outVars from TransFormulas that were not future-live. [2024-11-19 06:56:56,271 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 06:56:56,286 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 06:56:56,287 INFO L316 CfgBuilder]: Removed 11 assume(true) statements. [2024-11-19 06:56:56,288 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:56:56 BoogieIcfgContainer [2024-11-19 06:56:56,288 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 06:56:56,290 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 06:56:56,290 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 06:56:56,292 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 06:56:56,292 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 06:56:55" (1/3) ... [2024-11-19 06:56:56,293 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@758373e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:56:56, skipping insertion in model container [2024-11-19 06:56:56,293 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:56:55" (2/3) ... [2024-11-19 06:56:56,294 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@758373e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:56:56, skipping insertion in model container [2024-11-19 06:56:56,294 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:56:56" (3/3) ... [2024-11-19 06:56:56,295 INFO L112 eAbstractionObserver]: Analyzing ICFG sll-rb-sentinel-1.i [2024-11-19 06:56:56,307 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 06:56:56,307 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 58 error locations. [2024-11-19 06:56:56,341 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 06:56:56,346 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;@39c2fa81, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 06:56:56,346 INFO L334 AbstractCegarLoop]: Starting to check reachability of 58 error locations. [2024-11-19 06:56:56,349 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) [2024-11-19 06:56:56,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-19 06:56:56,354 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 06:56:56,354 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-19 06:56:56,355 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)] === [2024-11-19 06:56:56,359 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:56:56,360 INFO L85 PathProgramCache]: Analyzing trace with hash 38794, now seen corresponding path program 1 times [2024-11-19 06:56:56,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:56:56,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8801112] [2024-11-19 06:56:56,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:56:56,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:56:56,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:56:56,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:56:56,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:56:56,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8801112] [2024-11-19 06:56:56,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [8801112] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:56:56,536 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:56:56,536 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 06:56:56,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099612941] [2024-11-19 06:56:56,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:56:56,542 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:56:56,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:56:56,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:56:56,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:56:56,591 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) [2024-11-19 06:56:56,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 06:56:56,759 INFO L93 Difference]: Finished difference Result 159 states and 170 transitions. [2024-11-19 06:56:56,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:56:56,763 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 [2024-11-19 06:56:56,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 06:56:56,769 INFO L225 Difference]: With dead ends: 159 [2024-11-19 06:56:56,769 INFO L226 Difference]: Without dead ends: 157 [2024-11-19 06:56:56,774 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 [2024-11-19 06:56:56,776 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 [2024-11-19 06:56:56,776 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] [2024-11-19 06:56:56,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2024-11-19 06:56:56,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 132. [2024-11-19 06:56:56,810 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) [2024-11-19 06:56:56,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 143 transitions. [2024-11-19 06:56:56,813 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 143 transitions. Word has length 3 [2024-11-19 06:56:56,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 06:56:56,813 INFO L471 AbstractCegarLoop]: Abstraction has 132 states and 143 transitions. [2024-11-19 06:56:56,813 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) [2024-11-19 06:56:56,813 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 143 transitions. [2024-11-19 06:56:56,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-19 06:56:56,814 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 06:56:56,814 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-19 06:56:56,814 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-19 06:56:56,814 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)] === [2024-11-19 06:56:56,815 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:56:56,815 INFO L85 PathProgramCache]: Analyzing trace with hash 38795, now seen corresponding path program 1 times [2024-11-19 06:56:56,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:56:56,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067480099] [2024-11-19 06:56:56,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:56:56,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:56:56,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:56:56,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:56:56,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:56:56,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067480099] [2024-11-19 06:56:56,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1067480099] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:56:56,883 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:56:56,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 06:56:56,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073023458] [2024-11-19 06:56:56,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:56:56,884 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:56:56,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:56:56,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:56:56,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:56:56,885 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) [2024-11-19 06:56:56,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 06:56:56,955 INFO L93 Difference]: Finished difference Result 129 states and 139 transitions. [2024-11-19 06:56:56,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:56:56,955 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 [2024-11-19 06:56:56,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 06:56:56,956 INFO L225 Difference]: With dead ends: 129 [2024-11-19 06:56:56,956 INFO L226 Difference]: Without dead ends: 129 [2024-11-19 06:56:56,957 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 [2024-11-19 06:56:56,957 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 [2024-11-19 06:56:56,958 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] [2024-11-19 06:56:56,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2024-11-19 06:56:56,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 129. [2024-11-19 06:56:56,964 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) [2024-11-19 06:56:56,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 139 transitions. [2024-11-19 06:56:56,966 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 139 transitions. Word has length 3 [2024-11-19 06:56:56,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 06:56:56,966 INFO L471 AbstractCegarLoop]: Abstraction has 129 states and 139 transitions. [2024-11-19 06:56:56,966 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) [2024-11-19 06:56:56,966 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 139 transitions. [2024-11-19 06:56:56,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-19 06:56:56,966 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 06:56:56,966 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-19 06:56:56,967 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 06:56:56,967 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)] === [2024-11-19 06:56:56,967 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:56:56,967 INFO L85 PathProgramCache]: Analyzing trace with hash 1155697256, now seen corresponding path program 1 times [2024-11-19 06:56:56,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:56:56,967 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240740723] [2024-11-19 06:56:56,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:56:56,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:56:56,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:56:57,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:56:57,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:56:57,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1240740723] [2024-11-19 06:56:57,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1240740723] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:56:57,047 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:56:57,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 06:56:57,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898010223] [2024-11-19 06:56:57,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:56:57,048 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:56:57,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:56:57,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:56:57,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:56:57,048 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) [2024-11-19 06:56:57,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 06:56:57,137 INFO L93 Difference]: Finished difference Result 124 states and 135 transitions. [2024-11-19 06:56:57,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:56:57,138 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 [2024-11-19 06:56:57,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 06:56:57,138 INFO L225 Difference]: With dead ends: 124 [2024-11-19 06:56:57,138 INFO L226 Difference]: Without dead ends: 124 [2024-11-19 06:56:57,139 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 [2024-11-19 06:56:57,139 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 [2024-11-19 06:56:57,140 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] [2024-11-19 06:56:57,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2024-11-19 06:56:57,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124. [2024-11-19 06:56:57,146 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) [2024-11-19 06:56:57,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 135 transitions. [2024-11-19 06:56:57,147 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 135 transitions. Word has length 6 [2024-11-19 06:56:57,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 06:56:57,147 INFO L471 AbstractCegarLoop]: Abstraction has 124 states and 135 transitions. [2024-11-19 06:56:57,147 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) [2024-11-19 06:56:57,148 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 135 transitions. [2024-11-19 06:56:57,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-19 06:56:57,148 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 06:56:57,148 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-19 06:56:57,148 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 06:56:57,148 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)] === [2024-11-19 06:56:57,149 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:56:57,149 INFO L85 PathProgramCache]: Analyzing trace with hash 1155697257, now seen corresponding path program 1 times [2024-11-19 06:56:57,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:56:57,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358569148] [2024-11-19 06:56:57,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:56:57,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:56:57,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:56:57,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:56:57,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:56:57,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1358569148] [2024-11-19 06:56:57,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1358569148] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:56:57,247 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:56:57,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 06:56:57,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581890679] [2024-11-19 06:56:57,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:56:57,248 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:56:57,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:56:57,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:56:57,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:56:57,249 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) [2024-11-19 06:56:57,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 06:56:57,331 INFO L93 Difference]: Finished difference Result 129 states and 140 transitions. [2024-11-19 06:56:57,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:56:57,331 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 [2024-11-19 06:56:57,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 06:56:57,334 INFO L225 Difference]: With dead ends: 129 [2024-11-19 06:56:57,334 INFO L226 Difference]: Without dead ends: 129 [2024-11-19 06:56:57,335 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 [2024-11-19 06:56:57,335 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 [2024-11-19 06:56:57,337 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] [2024-11-19 06:56:57,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2024-11-19 06:56:57,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 129. [2024-11-19 06:56:57,346 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) [2024-11-19 06:56:57,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 140 transitions. [2024-11-19 06:56:57,347 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 140 transitions. Word has length 6 [2024-11-19 06:56:57,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 06:56:57,347 INFO L471 AbstractCegarLoop]: Abstraction has 129 states and 140 transitions. [2024-11-19 06:56:57,347 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) [2024-11-19 06:56:57,347 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 140 transitions. [2024-11-19 06:56:57,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-19 06:56:57,347 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 06:56:57,348 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:56:57,348 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-19 06:56:57,348 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)] === [2024-11-19 06:56:57,348 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:56:57,348 INFO L85 PathProgramCache]: Analyzing trace with hash -1507281578, now seen corresponding path program 1 times [2024-11-19 06:56:57,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:56:57,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216294510] [2024-11-19 06:56:57,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:56:57,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:56:57,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:56:57,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:56:57,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:56:57,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216294510] [2024-11-19 06:56:57,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1216294510] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:56:57,498 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:56:57,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 06:56:57,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259130256] [2024-11-19 06:56:57,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:56:57,499 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 06:56:57,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:56:57,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 06:56:57,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 06:56:57,500 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) [2024-11-19 06:56:57,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 06:56:57,631 INFO L93 Difference]: Finished difference Result 120 states and 133 transitions. [2024-11-19 06:56:57,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 06:56:57,631 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 [2024-11-19 06:56:57,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 06:56:57,632 INFO L225 Difference]: With dead ends: 120 [2024-11-19 06:56:57,633 INFO L226 Difference]: Without dead ends: 120 [2024-11-19 06:56:57,633 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 [2024-11-19 06:56:57,635 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 [2024-11-19 06:56:57,636 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] [2024-11-19 06:56:57,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2024-11-19 06:56:57,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2024-11-19 06:56:57,641 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) [2024-11-19 06:56:57,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 133 transitions. [2024-11-19 06:56:57,642 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 133 transitions. Word has length 11 [2024-11-19 06:56:57,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 06:56:57,643 INFO L471 AbstractCegarLoop]: Abstraction has 120 states and 133 transitions. [2024-11-19 06:56:57,643 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) [2024-11-19 06:56:57,643 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 133 transitions. [2024-11-19 06:56:57,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-19 06:56:57,643 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 06:56:57,644 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:56:57,644 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-19 06:56:57,644 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)] === [2024-11-19 06:56:57,645 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:56:57,645 INFO L85 PathProgramCache]: Analyzing trace with hash -1507281577, now seen corresponding path program 1 times [2024-11-19 06:56:57,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:56:57,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452485607] [2024-11-19 06:56:57,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:56:57,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:56:57,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:56:57,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:56:57,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:56:57,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452485607] [2024-11-19 06:56:57,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [452485607] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:56:57,807 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:56:57,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 06:56:57,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773467359] [2024-11-19 06:56:57,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:56:57,809 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 06:56:57,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:56:57,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 06:56:57,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 06:56:57,810 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) [2024-11-19 06:56:57,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 06:56:57,946 INFO L93 Difference]: Finished difference Result 128 states and 142 transitions. [2024-11-19 06:56:57,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 06:56:57,947 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 [2024-11-19 06:56:57,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 06:56:57,950 INFO L225 Difference]: With dead ends: 128 [2024-11-19 06:56:57,951 INFO L226 Difference]: Without dead ends: 128 [2024-11-19 06:56:57,951 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 [2024-11-19 06:56:57,951 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 [2024-11-19 06:56:57,952 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] [2024-11-19 06:56:57,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2024-11-19 06:56:57,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 127. [2024-11-19 06:56:57,957 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) [2024-11-19 06:56:57,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 141 transitions. [2024-11-19 06:56:57,961 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 141 transitions. Word has length 11 [2024-11-19 06:56:57,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 06:56:57,961 INFO L471 AbstractCegarLoop]: Abstraction has 127 states and 141 transitions. [2024-11-19 06:56:57,961 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) [2024-11-19 06:56:57,961 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 141 transitions. [2024-11-19 06:56:57,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-19 06:56:57,962 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 06:56:57,962 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:56:57,962 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-19 06:56:57,962 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)] === [2024-11-19 06:56:57,963 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:56:57,963 INFO L85 PathProgramCache]: Analyzing trace with hash 1283714209, now seen corresponding path program 1 times [2024-11-19 06:56:57,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:56:57,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740959417] [2024-11-19 06:56:57,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:56:57,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:56:57,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:56:58,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:56:58,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:56:58,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [740959417] [2024-11-19 06:56:58,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [740959417] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:56:58,018 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:56:58,018 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 06:56:58,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37337757] [2024-11-19 06:56:58,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:56:58,019 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 06:56:58,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:56:58,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 06:56:58,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 06:56:58,020 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) [2024-11-19 06:56:58,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 06:56:58,165 INFO L93 Difference]: Finished difference Result 161 states and 176 transitions. [2024-11-19 06:56:58,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 06:56:58,166 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 [2024-11-19 06:56:58,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 06:56:58,167 INFO L225 Difference]: With dead ends: 161 [2024-11-19 06:56:58,167 INFO L226 Difference]: Without dead ends: 161 [2024-11-19 06:56:58,167 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 [2024-11-19 06:56:58,170 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 [2024-11-19 06:56:58,170 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] [2024-11-19 06:56:58,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2024-11-19 06:56:58,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 129. [2024-11-19 06:56:58,178 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) [2024-11-19 06:56:58,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 142 transitions. [2024-11-19 06:56:58,179 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 142 transitions. Word has length 15 [2024-11-19 06:56:58,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 06:56:58,179 INFO L471 AbstractCegarLoop]: Abstraction has 129 states and 142 transitions. [2024-11-19 06:56:58,179 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) [2024-11-19 06:56:58,179 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 142 transitions. [2024-11-19 06:56:58,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-19 06:56:58,180 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 06:56:58,183 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:56:58,183 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-19 06:56:58,183 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)] === [2024-11-19 06:56:58,184 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:56:58,184 INFO L85 PathProgramCache]: Analyzing trace with hash 1300650200, now seen corresponding path program 1 times [2024-11-19 06:56:58,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:56:58,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881926589] [2024-11-19 06:56:58,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:56:58,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:56:58,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:56:58,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:56:58,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:56:58,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1881926589] [2024-11-19 06:56:58,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1881926589] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:56:58,275 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:56:58,275 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 06:56:58,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305396129] [2024-11-19 06:56:58,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:56:58,275 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 06:56:58,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:56:58,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 06:56:58,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-19 06:56:58,276 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) [2024-11-19 06:56:58,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 06:56:58,422 INFO L93 Difference]: Finished difference Result 129 states and 142 transitions. [2024-11-19 06:56:58,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 06:56:58,422 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 [2024-11-19 06:56:58,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 06:56:58,423 INFO L225 Difference]: With dead ends: 129 [2024-11-19 06:56:58,423 INFO L226 Difference]: Without dead ends: 129 [2024-11-19 06:56:58,424 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 [2024-11-19 06:56:58,424 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 [2024-11-19 06:56:58,425 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] [2024-11-19 06:56:58,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2024-11-19 06:56:58,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 128. [2024-11-19 06:56:58,429 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) [2024-11-19 06:56:58,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 141 transitions. [2024-11-19 06:56:58,433 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 141 transitions. Word has length 15 [2024-11-19 06:56:58,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 06:56:58,433 INFO L471 AbstractCegarLoop]: Abstraction has 128 states and 141 transitions. [2024-11-19 06:56:58,433 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) [2024-11-19 06:56:58,433 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 141 transitions. [2024-11-19 06:56:58,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-19 06:56:58,433 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 06:56:58,433 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:56:58,433 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-19 06:56:58,434 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)] === [2024-11-19 06:56:58,434 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:56:58,434 INFO L85 PathProgramCache]: Analyzing trace with hash 1300650201, now seen corresponding path program 1 times [2024-11-19 06:56:58,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:56:58,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993377055] [2024-11-19 06:56:58,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:56:58,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:56:58,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:56:58,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:56:58,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:56:58,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [993377055] [2024-11-19 06:56:58,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [993377055] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:56:58,652 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:56:58,653 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 06:56:58,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933151260] [2024-11-19 06:56:58,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:56:58,653 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 06:56:58,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:56:58,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 06:56:58,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-19 06:56:58,656 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) [2024-11-19 06:56:58,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 06:56:58,815 INFO L93 Difference]: Finished difference Result 129 states and 143 transitions. [2024-11-19 06:56:58,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 06:56:58,816 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 [2024-11-19 06:56:58,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 06:56:58,816 INFO L225 Difference]: With dead ends: 129 [2024-11-19 06:56:58,816 INFO L226 Difference]: Without dead ends: 129 [2024-11-19 06:56:58,817 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 [2024-11-19 06:56:58,817 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 [2024-11-19 06:56:58,817 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] [2024-11-19 06:56:58,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2024-11-19 06:56:58,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 123. [2024-11-19 06:56:58,819 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) [2024-11-19 06:56:58,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 136 transitions. [2024-11-19 06:56:58,820 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 136 transitions. Word has length 15 [2024-11-19 06:56:58,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 06:56:58,820 INFO L471 AbstractCegarLoop]: Abstraction has 123 states and 136 transitions. [2024-11-19 06:56:58,820 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) [2024-11-19 06:56:58,820 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 136 transitions. [2024-11-19 06:56:58,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-19 06:56:58,820 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 06:56:58,821 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:56:58,821 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-19 06:56:58,821 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)] === [2024-11-19 06:56:58,821 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:56:58,821 INFO L85 PathProgramCache]: Analyzing trace with hash 59129036, now seen corresponding path program 1 times [2024-11-19 06:56:58,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:56:58,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536961892] [2024-11-19 06:56:58,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:56:58,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:56:58,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:56:58,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:56:58,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:56:58,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1536961892] [2024-11-19 06:56:58,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1536961892] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:56:58,965 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:56:58,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-19 06:56:58,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629833143] [2024-11-19 06:56:58,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:56:58,966 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-19 06:56:58,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:56:58,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-19 06:56:58,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-19 06:56:58,966 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) [2024-11-19 06:56:59,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 06:56:59,174 INFO L93 Difference]: Finished difference Result 170 states and 190 transitions. [2024-11-19 06:56:59,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 06:56:59,175 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 [2024-11-19 06:56:59,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 06:56:59,175 INFO L225 Difference]: With dead ends: 170 [2024-11-19 06:56:59,175 INFO L226 Difference]: Without dead ends: 170 [2024-11-19 06:56:59,175 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 [2024-11-19 06:56:59,176 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 [2024-11-19 06:56:59,176 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] [2024-11-19 06:56:59,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2024-11-19 06:56:59,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 130. [2024-11-19 06:56:59,178 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) [2024-11-19 06:56:59,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 144 transitions. [2024-11-19 06:56:59,179 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 144 transitions. Word has length 18 [2024-11-19 06:56:59,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 06:56:59,179 INFO L471 AbstractCegarLoop]: Abstraction has 130 states and 144 transitions. [2024-11-19 06:56:59,179 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) [2024-11-19 06:56:59,179 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 144 transitions. [2024-11-19 06:56:59,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-19 06:56:59,180 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 06:56:59,180 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] [2024-11-19 06:56:59,180 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-19 06:56:59,180 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)] === [2024-11-19 06:56:59,181 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:56:59,181 INFO L85 PathProgramCache]: Analyzing trace with hash -87471536, now seen corresponding path program 1 times [2024-11-19 06:56:59,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:56:59,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328399135] [2024-11-19 06:56:59,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:56:59,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:56:59,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:56:59,317 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:56:59,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:56:59,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328399135] [2024-11-19 06:56:59,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [328399135] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 06:56:59,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [141623877] [2024-11-19 06:56:59,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:56:59,318 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 06:56:59,318 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 06:56:59,319 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) [2024-11-19 06:56:59,320 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-19 06:56:59,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:56:59,390 INFO L255 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-19 06:56:59,394 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 06:56:59,451 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 [2024-11-19 06:56:59,459 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 [2024-11-19 06:56:59,495 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 [2024-11-19 06:56:59,502 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 [2024-11-19 06:56:59,646 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 [2024-11-19 06:56:59,685 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:56:59,686 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 06:56:59,954 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 [2024-11-19 06:56:59,958 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 [2024-11-19 06:56:59,964 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 [2024-11-19 06:56:59,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-19 06:56:59,977 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:56:59,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [141623877] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 06:56:59,977 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 06:56:59,977 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 8, 7] total 15 [2024-11-19 06:56:59,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083846183] [2024-11-19 06:56:59,977 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 06:56:59,978 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-19 06:56:59,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:56:59,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-19 06:56:59,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2024-11-19 06:56:59,978 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) [2024-11-19 06:57:00,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 06:57:00,279 INFO L93 Difference]: Finished difference Result 168 states and 188 transitions. [2024-11-19 06:57:00,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-19 06:57:00,280 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 [2024-11-19 06:57:00,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 06:57:00,280 INFO L225 Difference]: With dead ends: 168 [2024-11-19 06:57:00,280 INFO L226 Difference]: Without dead ends: 168 [2024-11-19 06:57:00,281 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 [2024-11-19 06:57:00,281 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 [2024-11-19 06:57:00,281 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] [2024-11-19 06:57:00,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2024-11-19 06:57:00,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 137. [2024-11-19 06:57:00,283 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) [2024-11-19 06:57:00,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 152 transitions. [2024-11-19 06:57:00,284 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 152 transitions. Word has length 23 [2024-11-19 06:57:00,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 06:57:00,284 INFO L471 AbstractCegarLoop]: Abstraction has 137 states and 152 transitions. [2024-11-19 06:57:00,284 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) [2024-11-19 06:57:00,284 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 152 transitions. [2024-11-19 06:57:00,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-19 06:57:00,284 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 06:57:00,284 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] [2024-11-19 06:57:00,298 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-19 06:57:00,485 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 [2024-11-19 06:57:00,485 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)] === [2024-11-19 06:57:00,486 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:57:00,486 INFO L85 PathProgramCache]: Analyzing trace with hash 280788054, now seen corresponding path program 1 times [2024-11-19 06:57:00,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:57:00,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [914078194] [2024-11-19 06:57:00,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:57:00,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:57:00,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:57:00,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:57:00,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:57:00,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [914078194] [2024-11-19 06:57:00,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [914078194] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:57:00,528 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:57:00,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 06:57:00,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727204941] [2024-11-19 06:57:00,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:57:00,529 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 06:57:00,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:57:00,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 06:57:00,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 06:57:00,529 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) [2024-11-19 06:57:00,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 06:57:00,616 INFO L93 Difference]: Finished difference Result 139 states and 152 transitions. [2024-11-19 06:57:00,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 06:57:00,617 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 [2024-11-19 06:57:00,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 06:57:00,617 INFO L225 Difference]: With dead ends: 139 [2024-11-19 06:57:00,617 INFO L226 Difference]: Without dead ends: 139 [2024-11-19 06:57:00,617 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 [2024-11-19 06:57:00,618 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 [2024-11-19 06:57:00,618 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] [2024-11-19 06:57:00,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2024-11-19 06:57:00,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 136. [2024-11-19 06:57:00,620 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) [2024-11-19 06:57:00,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 149 transitions. [2024-11-19 06:57:00,623 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 149 transitions. Word has length 24 [2024-11-19 06:57:00,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 06:57:00,623 INFO L471 AbstractCegarLoop]: Abstraction has 136 states and 149 transitions. [2024-11-19 06:57:00,623 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) [2024-11-19 06:57:00,624 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 149 transitions. [2024-11-19 06:57:00,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-19 06:57:00,625 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 06:57:00,625 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] [2024-11-19 06:57:00,625 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-19 06:57:00,625 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)] === [2024-11-19 06:57:00,625 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:57:00,625 INFO L85 PathProgramCache]: Analyzing trace with hash 1982967613, now seen corresponding path program 1 times [2024-11-19 06:57:00,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:57:00,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097830807] [2024-11-19 06:57:00,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:57:00,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:57:00,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:57:00,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:57:00,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:57:00,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097830807] [2024-11-19 06:57:00,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2097830807] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:57:00,712 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:57:00,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 06:57:00,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826284828] [2024-11-19 06:57:00,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:57:00,713 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 06:57:00,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:57:00,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 06:57:00,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-19 06:57:00,713 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) [2024-11-19 06:57:00,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 06:57:00,847 INFO L93 Difference]: Finished difference Result 136 states and 149 transitions. [2024-11-19 06:57:00,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 06:57:00,847 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 [2024-11-19 06:57:00,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 06:57:00,848 INFO L225 Difference]: With dead ends: 136 [2024-11-19 06:57:00,848 INFO L226 Difference]: Without dead ends: 136 [2024-11-19 06:57:00,848 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 [2024-11-19 06:57:00,849 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 [2024-11-19 06:57:00,849 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] [2024-11-19 06:57:00,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2024-11-19 06:57:00,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 135. [2024-11-19 06:57:00,851 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) [2024-11-19 06:57:00,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 148 transitions. [2024-11-19 06:57:00,851 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 148 transitions. Word has length 24 [2024-11-19 06:57:00,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 06:57:00,852 INFO L471 AbstractCegarLoop]: Abstraction has 135 states and 148 transitions. [2024-11-19 06:57:00,852 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) [2024-11-19 06:57:00,852 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 148 transitions. [2024-11-19 06:57:00,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-19 06:57:00,853 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 06:57:00,853 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] [2024-11-19 06:57:00,853 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-19 06:57:00,854 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)] === [2024-11-19 06:57:00,854 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:57:00,854 INFO L85 PathProgramCache]: Analyzing trace with hash 1982967614, now seen corresponding path program 1 times [2024-11-19 06:57:00,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:57:00,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546304330] [2024-11-19 06:57:00,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:57:00,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:57:00,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:57:01,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:57:01,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:57:01,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1546304330] [2024-11-19 06:57:01,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1546304330] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:57:01,010 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:57:01,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 06:57:01,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653035031] [2024-11-19 06:57:01,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:57:01,011 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 06:57:01,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:57:01,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 06:57:01,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-19 06:57:01,011 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) [2024-11-19 06:57:01,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 06:57:01,127 INFO L93 Difference]: Finished difference Result 132 states and 145 transitions. [2024-11-19 06:57:01,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 06:57:01,127 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 [2024-11-19 06:57:01,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 06:57:01,127 INFO L225 Difference]: With dead ends: 132 [2024-11-19 06:57:01,127 INFO L226 Difference]: Without dead ends: 132 [2024-11-19 06:57:01,128 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 [2024-11-19 06:57:01,128 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 [2024-11-19 06:57:01,128 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] [2024-11-19 06:57:01,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2024-11-19 06:57:01,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 126. [2024-11-19 06:57:01,130 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) [2024-11-19 06:57:01,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 138 transitions. [2024-11-19 06:57:01,130 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 138 transitions. Word has length 24 [2024-11-19 06:57:01,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 06:57:01,131 INFO L471 AbstractCegarLoop]: Abstraction has 126 states and 138 transitions. [2024-11-19 06:57:01,131 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) [2024-11-19 06:57:01,131 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 138 transitions. [2024-11-19 06:57:01,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-19 06:57:01,131 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 06:57:01,131 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] [2024-11-19 06:57:01,131 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-19 06:57:01,132 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)] === [2024-11-19 06:57:01,132 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:57:01,132 INFO L85 PathProgramCache]: Analyzing trace with hash 1961787675, now seen corresponding path program 1 times [2024-11-19 06:57:01,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:57:01,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1149146011] [2024-11-19 06:57:01,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:57:01,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:57:01,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:57:01,514 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:57:01,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:57:01,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1149146011] [2024-11-19 06:57:01,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1149146011] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 06:57:01,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1287689270] [2024-11-19 06:57:01,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:57:01,514 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 06:57:01,515 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 06:57:01,516 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) [2024-11-19 06:57:01,517 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-19 06:57:01,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:57:01,607 INFO L255 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-19 06:57:01,610 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 06:57:01,613 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 [2024-11-19 06:57:01,631 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 [2024-11-19 06:57:01,688 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-19 06:57:01,689 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 [2024-11-19 06:57:01,721 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 [2024-11-19 06:57:01,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-19 06:57:01,727 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 [2024-11-19 06:57:01,766 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 [2024-11-19 06:57:01,803 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 [2024-11-19 06:57:01,822 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 [2024-11-19 06:57:01,861 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:57:01,862 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 06:57:01,931 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_529 (Array Int Int))) (= (select (select (store |c_#memory_int#1| |c_ULTIMATE.start_main_#t~mem5#1.base| 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 [2024-11-19 06:57:01,984 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 [2024-11-19 06:57:02,043 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 [2024-11-19 06:57:02,050 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 [2024-11-19 06:57:02,054 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-19 06:57:02,058 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 06:57:02,059 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 [2024-11-19 06:57:02,063 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 [2024-11-19 06:57:02,065 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 [2024-11-19 06:57:02,080 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:57:02,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1287689270] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 06:57:02,081 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 06:57:02,081 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 12, 12] total 32 [2024-11-19 06:57:02,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950817941] [2024-11-19 06:57:02,081 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 06:57:02,082 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-11-19 06:57:02,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:57:02,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-11-19 06:57:02,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=668, Unknown=13, NotChecked=168, Total=992 [2024-11-19 06:57:02,083 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) [2024-11-19 06:57:02,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 06:57:02,950 INFO L93 Difference]: Finished difference Result 185 states and 204 transitions. [2024-11-19 06:57:02,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-19 06:57:02,951 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 [2024-11-19 06:57:02,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 06:57:02,951 INFO L225 Difference]: With dead ends: 185 [2024-11-19 06:57:02,952 INFO L226 Difference]: Without dead ends: 185 [2024-11-19 06:57:02,952 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 40 SyntacticMatches, 1 SemanticMatches, 42 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 403 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=366, Invalid=1273, Unknown=13, NotChecked=240, Total=1892 [2024-11-19 06:57:02,952 INFO L432 NwaCegarLoop]: 56 mSDtfsCounter, 358 mSDsluCounter, 523 mSDsCounter, 0 mSdLazyCounter, 1012 mSolverCounterSat, 43 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 358 SdHoareTripleChecker+Valid, 579 SdHoareTripleChecker+Invalid, 1568 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 1012 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 509 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-19 06:57:02,953 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [358 Valid, 579 Invalid, 1568 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 1012 Invalid, 4 Unknown, 509 Unchecked, 0.6s Time] [2024-11-19 06:57:02,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2024-11-19 06:57:02,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 141. [2024-11-19 06:57:02,955 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) [2024-11-19 06:57:02,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 155 transitions. [2024-11-19 06:57:02,955 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 155 transitions. Word has length 28 [2024-11-19 06:57:02,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 06:57:02,955 INFO L471 AbstractCegarLoop]: Abstraction has 141 states and 155 transitions. [2024-11-19 06:57:02,956 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) [2024-11-19 06:57:02,956 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 155 transitions. [2024-11-19 06:57:02,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-19 06:57:02,956 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 06:57:02,956 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] [2024-11-19 06:57:02,968 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-19 06:57:03,160 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 [2024-11-19 06:57:03,160 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)] === [2024-11-19 06:57:03,161 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:57:03,161 INFO L85 PathProgramCache]: Analyzing trace with hash -805505189, now seen corresponding path program 1 times [2024-11-19 06:57:03,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:57:03,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566413884] [2024-11-19 06:57:03,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:57:03,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:57:03,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:57:03,184 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-19 06:57:03,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:57:03,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566413884] [2024-11-19 06:57:03,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1566413884] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:57:03,185 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:57:03,185 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 06:57:03,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21313006] [2024-11-19 06:57:03,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:57:03,186 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:57:03,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:57:03,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:57:03,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:57:03,187 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) [2024-11-19 06:57:03,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 06:57:03,218 INFO L93 Difference]: Finished difference Result 142 states and 155 transitions. [2024-11-19 06:57:03,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:57:03,219 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 [2024-11-19 06:57:03,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 06:57:03,219 INFO L225 Difference]: With dead ends: 142 [2024-11-19 06:57:03,220 INFO L226 Difference]: Without dead ends: 142 [2024-11-19 06:57:03,220 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 [2024-11-19 06:57:03,220 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 [2024-11-19 06:57:03,220 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] [2024-11-19 06:57:03,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2024-11-19 06:57:03,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 142. [2024-11-19 06:57:03,223 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) [2024-11-19 06:57:03,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 155 transitions. [2024-11-19 06:57:03,223 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 155 transitions. Word has length 29 [2024-11-19 06:57:03,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 06:57:03,224 INFO L471 AbstractCegarLoop]: Abstraction has 142 states and 155 transitions. [2024-11-19 06:57:03,224 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) [2024-11-19 06:57:03,224 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 155 transitions. [2024-11-19 06:57:03,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-19 06:57:03,225 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 06:57:03,225 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] [2024-11-19 06:57:03,225 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-19 06:57:03,226 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)] === [2024-11-19 06:57:03,226 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:57:03,226 INFO L85 PathProgramCache]: Analyzing trace with hash -996365794, now seen corresponding path program 1 times [2024-11-19 06:57:03,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:57:03,226 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970475977] [2024-11-19 06:57:03,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:57:03,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:57:03,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:57:03,325 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:57:03,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:57:03,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970475977] [2024-11-19 06:57:03,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [970475977] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 06:57:03,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [985371993] [2024-11-19 06:57:03,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:57:03,326 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 06:57:03,326 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 06:57:03,327 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) [2024-11-19 06:57:03,328 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-19 06:57:03,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:57:03,408 INFO L255 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-19 06:57:03,409 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 06:57:03,412 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 [2024-11-19 06:57:03,438 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-19 06:57:03,438 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 06:57:03,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [985371993] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:57:03,439 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 06:57:03,439 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 9 [2024-11-19 06:57:03,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349317446] [2024-11-19 06:57:03,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:57:03,439 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 06:57:03,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:57:03,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 06:57:03,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-19 06:57:03,440 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) [2024-11-19 06:57:03,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 06:57:03,490 INFO L93 Difference]: Finished difference Result 149 states and 162 transitions. [2024-11-19 06:57:03,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 06:57:03,490 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 [2024-11-19 06:57:03,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 06:57:03,491 INFO L225 Difference]: With dead ends: 149 [2024-11-19 06:57:03,491 INFO L226 Difference]: Without dead ends: 149 [2024-11-19 06:57:03,491 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 [2024-11-19 06:57:03,491 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 [2024-11-19 06:57:03,492 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] [2024-11-19 06:57:03,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2024-11-19 06:57:03,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 145. [2024-11-19 06:57:03,493 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) [2024-11-19 06:57:03,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 158 transitions. [2024-11-19 06:57:03,494 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 158 transitions. Word has length 31 [2024-11-19 06:57:03,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 06:57:03,494 INFO L471 AbstractCegarLoop]: Abstraction has 145 states and 158 transitions. [2024-11-19 06:57:03,494 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) [2024-11-19 06:57:03,494 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 158 transitions. [2024-11-19 06:57:03,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-19 06:57:03,495 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 06:57:03,495 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] [2024-11-19 06:57:03,507 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-19 06:57:03,698 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 [2024-11-19 06:57:03,699 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)] === [2024-11-19 06:57:03,699 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:57:03,699 INFO L85 PathProgramCache]: Analyzing trace with hash 1860599924, now seen corresponding path program 1 times [2024-11-19 06:57:03,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:57:03,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13193092] [2024-11-19 06:57:03,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:57:03,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:57:03,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:57:03,868 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:57:03,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:57:03,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13193092] [2024-11-19 06:57:03,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [13193092] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 06:57:03,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2119483957] [2024-11-19 06:57:03,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:57:03,869 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 06:57:03,869 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 06:57:03,871 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) [2024-11-19 06:57:03,872 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-19 06:57:03,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:57:03,955 INFO L255 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-19 06:57:03,957 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 06:57:03,963 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 [2024-11-19 06:57:03,992 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2024-11-19 06:57:03,993 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 [2024-11-19 06:57:04,021 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 [2024-11-19 06:57:04,052 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 [2024-11-19 06:57:04,202 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 [2024-11-19 06:57:04,245 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 [2024-11-19 06:57:04,260 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-19 06:57:04,260 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 06:57:04,492 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-19 06:57:04,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2119483957] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 06:57:04,492 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 06:57:04,492 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 8] total 19 [2024-11-19 06:57:04,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390813978] [2024-11-19 06:57:04,493 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 06:57:04,493 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-19 06:57:04,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:57:04,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-19 06:57:04,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=298, Unknown=0, NotChecked=0, Total=342 [2024-11-19 06:57:04,493 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) [2024-11-19 06:57:05,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 06:57:05,195 INFO L93 Difference]: Finished difference Result 168 states and 188 transitions. [2024-11-19 06:57:05,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-19 06:57:05,196 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 [2024-11-19 06:57:05,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 06:57:05,196 INFO L225 Difference]: With dead ends: 168 [2024-11-19 06:57:05,196 INFO L226 Difference]: Without dead ends: 168 [2024-11-19 06:57:05,197 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 [2024-11-19 06:57:05,197 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, 0.4s IncrementalHoareTripleChecker+Time [2024-11-19 06:57:05,197 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [406 Valid, 539 Invalid, 1046 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1021 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-19 06:57:05,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2024-11-19 06:57:05,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 156. [2024-11-19 06:57:05,199 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) [2024-11-19 06:57:05,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 171 transitions. [2024-11-19 06:57:05,199 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 171 transitions. Word has length 32 [2024-11-19 06:57:05,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 06:57:05,199 INFO L471 AbstractCegarLoop]: Abstraction has 156 states and 171 transitions. [2024-11-19 06:57:05,200 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) [2024-11-19 06:57:05,200 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 171 transitions. [2024-11-19 06:57:05,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-11-19 06:57:05,200 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 06:57:05,200 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] [2024-11-19 06:57:05,213 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-19 06:57:05,400 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 [2024-11-19 06:57:05,401 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)] === [2024-11-19 06:57:05,401 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:57:05,401 INFO L85 PathProgramCache]: Analyzing trace with hash 1844022411, now seen corresponding path program 1 times [2024-11-19 06:57:05,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:57:05,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688424289] [2024-11-19 06:57:05,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:57:05,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:57:05,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:57:05,431 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-19 06:57:05,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:57:05,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688424289] [2024-11-19 06:57:05,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1688424289] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:57:05,432 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:57:05,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 06:57:05,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645269158] [2024-11-19 06:57:05,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:57:05,433 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:57:05,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:57:05,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:57:05,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:57:05,434 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) [2024-11-19 06:57:05,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 06:57:05,457 INFO L93 Difference]: Finished difference Result 155 states and 169 transitions. [2024-11-19 06:57:05,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:57:05,458 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 [2024-11-19 06:57:05,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 06:57:05,458 INFO L225 Difference]: With dead ends: 155 [2024-11-19 06:57:05,458 INFO L226 Difference]: Without dead ends: 155 [2024-11-19 06:57:05,458 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 [2024-11-19 06:57:05,459 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 [2024-11-19 06:57:05,459 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] [2024-11-19 06:57:05,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2024-11-19 06:57:05,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 155. [2024-11-19 06:57:05,461 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) [2024-11-19 06:57:05,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 169 transitions. [2024-11-19 06:57:05,461 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 169 transitions. Word has length 33 [2024-11-19 06:57:05,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 06:57:05,461 INFO L471 AbstractCegarLoop]: Abstraction has 155 states and 169 transitions. [2024-11-19 06:57:05,461 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) [2024-11-19 06:57:05,461 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 169 transitions. [2024-11-19 06:57:05,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-11-19 06:57:05,462 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 06:57:05,462 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] [2024-11-19 06:57:05,462 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-19 06:57:05,463 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)] === [2024-11-19 06:57:05,463 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:57:05,463 INFO L85 PathProgramCache]: Analyzing trace with hash -1162191007, now seen corresponding path program 1 times [2024-11-19 06:57:05,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:57:05,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869747066] [2024-11-19 06:57:05,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:57:05,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:57:05,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:57:05,726 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:57:05,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:57:05,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869747066] [2024-11-19 06:57:05,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1869747066] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 06:57:05,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [770719629] [2024-11-19 06:57:05,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:57:05,727 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 06:57:05,727 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 06:57:05,729 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) [2024-11-19 06:57:05,730 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-19 06:57:05,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:57:05,820 INFO L255 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-11-19 06:57:05,822 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 06:57:05,826 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 [2024-11-19 06:57:05,884 INFO L349 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2024-11-19 06:57:05,884 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 [2024-11-19 06:57:05,918 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 [2024-11-19 06:57:06,014 INFO L349 Elim1Store]: treesize reduction 17, result has 22.7 percent of original size [2024-11-19 06:57:06,015 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 [2024-11-19 06:57:06,045 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2024-11-19 06:57:06,046 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 [2024-11-19 06:57:06,155 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 [2024-11-19 06:57:06,209 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:57:06,210 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 06:57:06,447 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 06:57:06,447 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 [2024-11-19 06:57:06,452 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 06:57:06,452 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 [2024-11-19 06:57:06,459 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 [2024-11-19 06:57:06,886 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:57:06,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [770719629] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 06:57:06,886 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 06:57:06,887 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 11, 11] total 32 [2024-11-19 06:57:06,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247887924] [2024-11-19 06:57:06,888 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 06:57:06,888 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-11-19 06:57:06,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:57:06,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-11-19 06:57:06,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=137, Invalid=912, Unknown=7, NotChecked=0, Total=1056 [2024-11-19 06:57:06,890 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) [2024-11-19 06:57:07,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 06:57:07,870 INFO L93 Difference]: Finished difference Result 251 states and 279 transitions. [2024-11-19 06:57:07,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-19 06:57:07,870 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 [2024-11-19 06:57:07,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 06:57:07,871 INFO L225 Difference]: With dead ends: 251 [2024-11-19 06:57:07,871 INFO L226 Difference]: Without dead ends: 251 [2024-11-19 06:57:07,872 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 [2024-11-19 06:57:07,872 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 [2024-11-19 06:57:07,872 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] [2024-11-19 06:57:07,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2024-11-19 06:57:07,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 178. [2024-11-19 06:57:07,874 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) [2024-11-19 06:57:07,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 196 transitions. [2024-11-19 06:57:07,875 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 196 transitions. Word has length 33 [2024-11-19 06:57:07,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 06:57:07,875 INFO L471 AbstractCegarLoop]: Abstraction has 178 states and 196 transitions. [2024-11-19 06:57:07,875 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) [2024-11-19 06:57:07,875 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 196 transitions. [2024-11-19 06:57:07,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-11-19 06:57:07,876 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 06:57:07,876 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] [2024-11-19 06:57:07,890 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-19 06:57:08,076 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 [2024-11-19 06:57:08,077 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)] === [2024-11-19 06:57:08,077 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:57:08,077 INFO L85 PathProgramCache]: Analyzing trace with hash -1162191006, now seen corresponding path program 1 times [2024-11-19 06:57:08,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:57:08,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538495133] [2024-11-19 06:57:08,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:57:08,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:57:08,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:57:08,412 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:57:08,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:57:08,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [538495133] [2024-11-19 06:57:08,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [538495133] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 06:57:08,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1167052853] [2024-11-19 06:57:08,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:57:08,412 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 06:57:08,413 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 06:57:08,414 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) [2024-11-19 06:57:08,415 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-19 06:57:08,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:57:08,502 INFO L255 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 42 conjuncts are in the unsatisfiable core [2024-11-19 06:57:08,507 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 06:57:08,509 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 [2024-11-19 06:57:08,533 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-19 06:57:08,533 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 [2024-11-19 06:57:08,536 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 [2024-11-19 06:57:08,564 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 [2024-11-19 06:57:08,567 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 [2024-11-19 06:57:08,649 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2024-11-19 06:57:08,649 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 [2024-11-19 06:57:08,653 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 [2024-11-19 06:57:08,662 INFO L349 Elim1Store]: treesize reduction 17, result has 22.7 percent of original size [2024-11-19 06:57:08,663 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 [2024-11-19 06:57:08,700 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2024-11-19 06:57:08,700 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 [2024-11-19 06:57:08,704 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 [2024-11-19 06:57:08,788 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 [2024-11-19 06:57:08,790 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 [2024-11-19 06:57:08,827 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:57:08,827 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 06:57:08,948 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 [2024-11-19 06:57:09,007 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 [2024-11-19 06:57:09,018 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 06:57:09,018 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 [2024-11-19 06:57:09,021 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 06:57:09,022 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 [2024-11-19 06:57:09,029 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 06:57:09,029 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 [2024-11-19 06:57:09,037 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 06:57:09,037 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 [2024-11-19 06:57:09,040 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 [2024-11-19 06:57:09,042 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 [2024-11-19 06:57:09,059 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 06:57:09,059 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 [2024-11-19 06:57:09,063 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-19 06:57:09,064 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 [2024-11-19 06:57:09,147 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:57:09,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1167052853] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 06:57:09,148 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 06:57:09,148 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11, 11] total 31 [2024-11-19 06:57:09,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569714868] [2024-11-19 06:57:09,148 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 06:57:09,148 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-11-19 06:57:09,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:57:09,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-11-19 06:57:09,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=753, Unknown=21, NotChecked=114, Total=992 [2024-11-19 06:57:09,149 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) [2024-11-19 06:57:10,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 06:57:10,123 INFO L93 Difference]: Finished difference Result 228 states and 252 transitions. [2024-11-19 06:57:10,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-19 06:57:10,123 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 [2024-11-19 06:57:10,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 06:57:10,124 INFO L225 Difference]: With dead ends: 228 [2024-11-19 06:57:10,124 INFO L226 Difference]: Without dead ends: 228 [2024-11-19 06:57:10,125 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 50 SyntacticMatches, 2 SemanticMatches, 46 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 305 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=293, Invalid=1756, Unknown=29, NotChecked=178, Total=2256 [2024-11-19 06:57:10,125 INFO L432 NwaCegarLoop]: 67 mSDtfsCounter, 385 mSDsluCounter, 758 mSDsCounter, 0 mSdLazyCounter, 1543 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 385 SdHoareTripleChecker+Valid, 825 SdHoareTripleChecker+Invalid, 1943 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 1543 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 346 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-19 06:57:10,125 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [385 Valid, 825 Invalid, 1943 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 1543 Invalid, 0 Unknown, 346 Unchecked, 0.6s Time] [2024-11-19 06:57:10,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2024-11-19 06:57:10,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 181. [2024-11-19 06:57:10,127 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) [2024-11-19 06:57:10,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 199 transitions. [2024-11-19 06:57:10,128 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 199 transitions. Word has length 33 [2024-11-19 06:57:10,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 06:57:10,128 INFO L471 AbstractCegarLoop]: Abstraction has 181 states and 199 transitions. [2024-11-19 06:57:10,128 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) [2024-11-19 06:57:10,128 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 199 transitions. [2024-11-19 06:57:10,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-11-19 06:57:10,128 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 06:57:10,128 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] [2024-11-19 06:57:10,144 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-19 06:57:10,328 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 [2024-11-19 06:57:10,329 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)] === [2024-11-19 06:57:10,329 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:57:10,329 INFO L85 PathProgramCache]: Analyzing trace with hash 807186605, now seen corresponding path program 1 times [2024-11-19 06:57:10,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:57:10,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038787810] [2024-11-19 06:57:10,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:57:10,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:57:10,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:57:10,922 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:57:10,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:57:10,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038787810] [2024-11-19 06:57:10,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1038787810] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 06:57:10,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2135421619] [2024-11-19 06:57:10,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:57:10,922 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 06:57:10,923 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 06:57:10,924 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) [2024-11-19 06:57:10,925 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-19 06:57:11,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:57:11,029 INFO L255 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 45 conjuncts are in the unsatisfiable core [2024-11-19 06:57:11,035 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 06:57:11,044 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 [2024-11-19 06:57:11,058 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 [2024-11-19 06:57:11,108 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-19 06:57:11,108 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 [2024-11-19 06:57:11,134 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 [2024-11-19 06:57:11,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-19 06:57:11,141 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 [2024-11-19 06:57:11,168 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 [2024-11-19 06:57:11,200 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 [2024-11-19 06:57:11,213 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 [2024-11-19 06:57:11,239 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 [2024-11-19 06:57:11,245 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 [2024-11-19 06:57:11,276 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 [2024-11-19 06:57:11,313 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2024-11-19 06:57:11,313 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 [2024-11-19 06:57:11,339 INFO L349 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2024-11-19 06:57:11,340 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 [2024-11-19 06:57:11,393 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:57:11,394 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 06:57:11,458 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 06:57:11,458 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 [2024-11-19 06:57:11,526 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 [2024-11-19 06:57:11,536 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_arrayElimArr_5 (Array Int Int)) (|v_ULTIMATE.start_main_~end~0#1.base_99| Int)) (or (not (= (select v_arrayElimArr_5 (+ (select (select |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset|) 4)) 1)) (= (select (select (store |c_#memory_int#1| |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 [2024-11-19 06:57:11,672 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 [2024-11-19 06:57:11,730 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 [2024-11-19 06:57:11,789 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 [2024-11-19 06:57:11,795 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 [2024-11-19 06:57:11,803 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 06:57:11,803 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 [2024-11-19 06:57:11,810 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-19 06:57:11,814 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 [2024-11-19 06:57:11,874 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:57:11,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2135421619] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 06:57:11,874 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 06:57:11,874 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 17, 17] total 46 [2024-11-19 06:57:11,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116358238] [2024-11-19 06:57:11,874 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 06:57:11,874 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2024-11-19 06:57:11,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:57:11,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2024-11-19 06:57:11,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=259, Invalid=1361, Unknown=40, NotChecked=410, Total=2070 [2024-11-19 06:57:11,876 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) [2024-11-19 06:57:28,782 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-19 06:57:29,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 06:57:29,084 INFO L93 Difference]: Finished difference Result 186 states and 204 transitions. [2024-11-19 06:57:29,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-19 06:57:29,084 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 [2024-11-19 06:57:29,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 06:57:29,085 INFO L225 Difference]: With dead ends: 186 [2024-11-19 06:57:29,085 INFO L226 Difference]: Without dead ends: 186 [2024-11-19 06:57:29,086 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 45 SyntacticMatches, 4 SemanticMatches, 62 ConstructedPredicates, 5 IntricatePredicates, 1 DeprecatedPredicates, 865 ImplicationChecksByTransitivity, 13.3s TimeCoverageRelationStatistics Valid=679, Invalid=2719, Unknown=44, NotChecked=590, Total=4032 [2024-11-19 06:57:29,087 INFO L432 NwaCegarLoop]: 63 mSDtfsCounter, 267 mSDsluCounter, 620 mSDsCounter, 0 mSdLazyCounter, 1184 mSolverCounterSat, 64 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 267 SdHoareTripleChecker+Valid, 683 SdHoareTripleChecker+Invalid, 1837 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 1184 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 584 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2024-11-19 06:57:29,087 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [267 Valid, 683 Invalid, 1837 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 1184 Invalid, 5 Unknown, 584 Unchecked, 4.5s Time] [2024-11-19 06:57:29,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2024-11-19 06:57:29,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 165. [2024-11-19 06:57:29,089 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) [2024-11-19 06:57:29,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 180 transitions. [2024-11-19 06:57:29,090 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 180 transitions. Word has length 35 [2024-11-19 06:57:29,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 06:57:29,090 INFO L471 AbstractCegarLoop]: Abstraction has 165 states and 180 transitions. [2024-11-19 06:57:29,090 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) [2024-11-19 06:57:29,090 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 180 transitions. [2024-11-19 06:57:29,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-11-19 06:57:29,090 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 06:57:29,090 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] [2024-11-19 06:57:29,104 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-19 06:57:29,291 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 [2024-11-19 06:57:29,291 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)] === [2024-11-19 06:57:29,292 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:57:29,292 INFO L85 PathProgramCache]: Analyzing trace with hash -1715947698, now seen corresponding path program 1 times [2024-11-19 06:57:29,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:57:29,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985678761] [2024-11-19 06:57:29,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:57:29,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:57:29,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:57:29,444 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-19 06:57:29,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:57:29,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985678761] [2024-11-19 06:57:29,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [985678761] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 06:57:29,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1554535511] [2024-11-19 06:57:29,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:57:29,445 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 06:57:29,445 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 06:57:29,446 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) [2024-11-19 06:57:29,447 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-19 06:57:29,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:57:29,538 INFO L255 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-19 06:57:29,539 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 06:57:29,569 INFO L349 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2024-11-19 06:57:29,570 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 [2024-11-19 06:57:29,702 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 [2024-11-19 06:57:29,745 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 [2024-11-19 06:57:29,768 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-19 06:57:29,769 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 06:57:29,935 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-19 06:57:29,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1554535511] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 06:57:29,935 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 06:57:29,935 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 13 [2024-11-19 06:57:29,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146683660] [2024-11-19 06:57:29,935 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 06:57:29,935 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-19 06:57:29,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:57:29,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-19 06:57:29,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2024-11-19 06:57:29,936 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) [2024-11-19 06:57:30,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 06:57:30,252 INFO L93 Difference]: Finished difference Result 175 states and 189 transitions. [2024-11-19 06:57:30,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 06:57:30,252 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 [2024-11-19 06:57:30,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 06:57:30,253 INFO L225 Difference]: With dead ends: 175 [2024-11-19 06:57:30,253 INFO L226 Difference]: Without dead ends: 150 [2024-11-19 06:57:30,253 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 61 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=56, Invalid=184, Unknown=0, NotChecked=0, Total=240 [2024-11-19 06:57:30,253 INFO L432 NwaCegarLoop]: 74 mSDtfsCounter, 7 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 400 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 374 SdHoareTripleChecker+Invalid, 401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 400 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 06:57:30,253 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 374 Invalid, 401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 400 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 06:57:30,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2024-11-19 06:57:30,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2024-11-19 06:57:30,255 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) [2024-11-19 06:57:30,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 164 transitions. [2024-11-19 06:57:30,255 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 164 transitions. Word has length 35 [2024-11-19 06:57:30,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 06:57:30,256 INFO L471 AbstractCegarLoop]: Abstraction has 150 states and 164 transitions. [2024-11-19 06:57:30,256 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) [2024-11-19 06:57:30,256 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 164 transitions. [2024-11-19 06:57:30,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-19 06:57:30,256 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 06:57:30,256 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] [2024-11-19 06:57:30,272 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-19 06:57:30,456 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 [2024-11-19 06:57:30,456 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)] === [2024-11-19 06:57:30,457 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:57:30,457 INFO L85 PathProgramCache]: Analyzing trace with hash -1281300717, now seen corresponding path program 2 times [2024-11-19 06:57:30,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:57:30,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158116525] [2024-11-19 06:57:30,457 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 06:57:30,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:57:30,479 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 06:57:30,480 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 06:57:30,908 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:57:30,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:57:30,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158116525] [2024-11-19 06:57:30,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [158116525] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 06:57:30,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [53714241] [2024-11-19 06:57:30,909 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 06:57:30,909 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 06:57:30,909 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 06:57:30,910 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) [2024-11-19 06:57:30,912 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-19 06:57:31,019 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 06:57:31,019 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 06:57:31,020 INFO L255 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 61 conjuncts are in the unsatisfiable core [2024-11-19 06:57:31,022 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 06:57:31,046 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 [2024-11-19 06:57:31,105 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-19 06:57:31,105 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 [2024-11-19 06:57:31,144 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 [2024-11-19 06:57:31,150 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 [2024-11-19 06:57:31,253 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2024-11-19 06:57:31,254 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 [2024-11-19 06:57:31,262 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 19 treesize of output 18 [2024-11-19 06:57:31,339 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2024-11-19 06:57:31,340 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 85 treesize of output 58 [2024-11-19 06:57:31,346 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 46 treesize of output 25 [2024-11-19 06:57:31,609 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2024-11-19 06:57:31,609 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 3 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 21 [2024-11-19 06:57:31,650 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:57:31,651 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 06:57:32,009 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse2 (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~end~0#1.base|)) (.cse4 (store (select |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset| |c_ULTIMATE.start_main_~null~0#1.offset|)) (.cse3 (+ |c_ULTIMATE.start_main_~end~0#1.offset| 4))) (and (forall ((|ULTIMATE.start_main_~null~0#1.base| Int) (v_ArrVal_1230 (Array Int Int))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_~end~0#1.base| v_ArrVal_1230) |c_ULTIMATE.start_main_~list~0#1.base|) |c_ULTIMATE.start_main_~list~0#1.offset|))) (or (< .cse0 0) (forall ((v_ArrVal_1231 Int)) (= |ULTIMATE.start_main_~null~0#1.base| (select (let ((.cse1 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~end~0#1.base| (store (store .cse2 |c_ULTIMATE.start_main_~end~0#1.offset| |ULTIMATE.start_main_~null~0#1.base|) .cse3 v_ArrVal_1231)))) (select .cse1 (select (select .cse1 |c_ULTIMATE.start_main_~list~0#1.base|) |c_ULTIMATE.start_main_~list~0#1.offset|))) .cse0))) (not (= v_ArrVal_1230 (store .cse4 .cse3 (select v_ArrVal_1230 .cse3))))))) (forall ((|ULTIMATE.start_main_~null~0#1.base| Int) (v_ArrVal_1230 (Array Int Int))) (let ((.cse6 (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_~end~0#1.base| v_ArrVal_1230))) (let ((.cse5 (select (select .cse6 |c_ULTIMATE.start_main_~list~0#1.base|) |c_ULTIMATE.start_main_~list~0#1.offset|))) (or (< .cse5 0) (forall ((v_ArrVal_1231 Int)) (= |c_ULTIMATE.start_main_~null~0#1.offset| (select (select .cse6 (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~end~0#1.base| (store (store .cse2 |c_ULTIMATE.start_main_~end~0#1.offset| |ULTIMATE.start_main_~null~0#1.base|) .cse3 v_ArrVal_1231)) |c_ULTIMATE.start_main_~list~0#1.base|) |c_ULTIMATE.start_main_~list~0#1.offset|)) .cse5))) (not (= v_ArrVal_1230 (store .cse4 .cse3 (select v_ArrVal_1230 .cse3)))))))))) is different from false [2024-11-19 06:57:32,029 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (store (select |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem5#1.base|) |c_ULTIMATE.start_main_#t~mem5#1.offset| |c_ULTIMATE.start_main_~null~0#1.offset|)) (.cse3 (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem5#1.base|)) (.cse1 (+ |c_ULTIMATE.start_main_#t~mem5#1.offset| 4))) (and (forall ((|ULTIMATE.start_main_~null~0#1.base| Int) (v_ArrVal_1230 (Array Int Int))) (let ((.cse2 (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem5#1.base| v_ArrVal_1230))) (let ((.cse4 (select (select .cse2 |c_ULTIMATE.start_main_~list~0#1.base|) |c_ULTIMATE.start_main_~list~0#1.offset|))) (or (not (= v_ArrVal_1230 (store .cse0 .cse1 (select v_ArrVal_1230 .cse1)))) (forall ((v_ArrVal_1231 Int)) (= |c_ULTIMATE.start_main_~null~0#1.offset| (select (select .cse2 (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem5#1.base| (store (store .cse3 |c_ULTIMATE.start_main_#t~mem5#1.offset| |ULTIMATE.start_main_~null~0#1.base|) .cse1 v_ArrVal_1231)) |c_ULTIMATE.start_main_~list~0#1.base|) |c_ULTIMATE.start_main_~list~0#1.offset|)) .cse4))) (< .cse4 0))))) (forall ((|ULTIMATE.start_main_~null~0#1.base| Int) (v_ArrVal_1230 (Array Int Int))) (let ((.cse5 (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem5#1.base| v_ArrVal_1230) |c_ULTIMATE.start_main_~list~0#1.base|) |c_ULTIMATE.start_main_~list~0#1.offset|))) (or (not (= v_ArrVal_1230 (store .cse0 .cse1 (select v_ArrVal_1230 .cse1)))) (< .cse5 0) (forall ((v_ArrVal_1231 Int)) (= |ULTIMATE.start_main_~null~0#1.base| (select (let ((.cse6 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem5#1.base| (store (store .cse3 |c_ULTIMATE.start_main_#t~mem5#1.offset| |ULTIMATE.start_main_~null~0#1.base|) .cse1 v_ArrVal_1231)))) (select .cse6 (select (select .cse6 |c_ULTIMATE.start_main_~list~0#1.base|) |c_ULTIMATE.start_main_~list~0#1.offset|))) .cse5)))))))) is different from false [2024-11-19 06:57:32,069 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse3 (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset|)) (.cse5 (select (select |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset|))) (let ((.cse0 (store (select |c_#memory_$Pointer$#1.offset| .cse3) .cse5 |c_ULTIMATE.start_main_~null~0#1.offset|)) (.cse4 (select |c_#memory_$Pointer$#1.base| .cse3)) (.cse1 (+ .cse5 4))) (and (forall ((|ULTIMATE.start_main_~null~0#1.base| Int) (v_ArrVal_1230 (Array Int Int))) (let ((.cse6 (select (select (store |c_#memory_$Pointer$#1.offset| .cse3 v_ArrVal_1230) |c_ULTIMATE.start_main_~list~0#1.base|) |c_ULTIMATE.start_main_~list~0#1.offset|))) (or (not (= (store .cse0 .cse1 (select v_ArrVal_1230 .cse1)) v_ArrVal_1230)) (forall ((v_ArrVal_1231 Int)) (= |ULTIMATE.start_main_~null~0#1.base| (select (let ((.cse2 (store |c_#memory_$Pointer$#1.base| .cse3 (store (store .cse4 .cse5 |ULTIMATE.start_main_~null~0#1.base|) .cse1 v_ArrVal_1231)))) (select .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~list~0#1.base|) |c_ULTIMATE.start_main_~list~0#1.offset|))) .cse6))) (< .cse6 0)))) (forall ((|ULTIMATE.start_main_~null~0#1.base| Int) (v_ArrVal_1230 (Array Int Int))) (let ((.cse7 (store |c_#memory_$Pointer$#1.offset| .cse3 v_ArrVal_1230))) (let ((.cse8 (select (select .cse7 |c_ULTIMATE.start_main_~list~0#1.base|) |c_ULTIMATE.start_main_~list~0#1.offset|))) (or (not (= (store .cse0 .cse1 (select v_ArrVal_1230 .cse1)) v_ArrVal_1230)) (forall ((v_ArrVal_1231 Int)) (= |c_ULTIMATE.start_main_~null~0#1.offset| (select (select .cse7 (select (select (store |c_#memory_$Pointer$#1.base| .cse3 (store (store .cse4 .cse5 |ULTIMATE.start_main_~null~0#1.base|) .cse1 v_ArrVal_1231)) |c_ULTIMATE.start_main_~list~0#1.base|) |c_ULTIMATE.start_main_~list~0#1.offset|)) .cse8))) (< .cse8 0)))))))) is different from false [2024-11-19 06:57:32,103 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 1626 treesize of output 1610 [2024-11-19 06:57:32,116 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 06:57:32,117 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 507 treesize of output 347 [2024-11-19 06:57:32,196 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 06:57:32,197 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 813 treesize of output 853 [2024-11-19 06:57:32,303 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 6 treesize of output 4 [2024-11-19 06:57:32,961 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 316 treesize of output 280 [2024-11-19 06:57:33,575 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 316 treesize of output 280 [2024-11-19 06:57:34,296 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 316 treesize of output 280 [2024-11-19 06:57:34,611 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 316 treesize of output 280 [2024-11-19 06:57:34,820 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 06:57:34,820 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 256 treesize of output 260 [2024-11-19 06:57:38,873 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 15 treesize of output 3 [2024-11-19 06:57:38,930 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 15 treesize of output 3 [2024-11-19 06:57:39,947 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 15 treesize of output 3 [2024-11-19 06:57:39,970 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 15 treesize of output 3 [2024-11-19 06:57:40,078 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 15 treesize of output 3 [2024-11-19 06:57:40,097 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 06:57:40,097 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 22 treesize of output 26 [2024-11-19 06:57:41,644 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 06:57:41,645 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 14 treesize of output 18 [2024-11-19 06:57:41,661 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 6 treesize of output 4 [2024-11-19 06:57:41,670 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 6 treesize of output 4 [2024-11-19 06:57:41,787 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 [2024-11-19 06:57:41,795 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 [2024-11-19 06:57:41,802 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 [2024-11-19 06:57:41,817 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 [2024-11-19 06:57:41,981 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 06:57:41,981 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 29 treesize of output 59 [2024-11-19 06:57:42,105 INFO L349 Elim1Store]: treesize reduction 5, result has 50.0 percent of original size [2024-11-19 06:57:42,105 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 14 treesize of output 13 [2024-11-19 06:57:42,125 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 6 treesize of output 4 [2024-11-19 06:57:42,228 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 [2024-11-19 06:57:42,235 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 [2024-11-19 06:57:42,243 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 [2024-11-19 06:57:42,263 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 [2024-11-19 06:57:42,406 WARN L214 Elim1Store]: Array PQE input equivalent to true [2024-11-19 06:57:42,435 WARN L214 Elim1Store]: Array PQE input equivalent to true [2024-11-19 06:57:42,483 WARN L214 Elim1Store]: Array PQE input equivalent to true [2024-11-19 06:57:42,500 WARN L214 Elim1Store]: Array PQE input equivalent to true [2024-11-19 06:57:42,504 WARN L214 Elim1Store]: Array PQE input equivalent to true [2024-11-19 06:57:42,507 WARN L214 Elim1Store]: Array PQE input equivalent to true [2024-11-19 06:57:42,536 WARN L214 Elim1Store]: Array PQE input equivalent to true [2024-11-19 06:57:42,543 WARN L214 Elim1Store]: Array PQE input equivalent to true [2024-11-19 06:57:42,546 WARN L214 Elim1Store]: Array PQE input equivalent to true [2024-11-19 06:57:42,579 WARN L214 Elim1Store]: Array PQE input equivalent to true [2024-11-19 06:57:42,948 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-19 06:57:42,948 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-19 06:57:42,952 WARN L214 Elim1Store]: Array PQE input equivalent to true [2024-11-19 06:57:42,965 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 06:57:42,965 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 241 treesize of output 239 [2024-11-19 06:57:43,015 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 6 treesize of output 4 [2024-11-19 06:57:43,391 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 06:57:43,392 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 11 select indices, 11 select index equivalence classes, 0 disjoint index pairs (out of 55 index pairs), introduced 12 new quantified variables, introduced 55 case distinctions, treesize of input 2844 treesize of output 3040