./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/memsafety/lockfree-3.0.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 3289d67d 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/memsafety/lockfree-3.0.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 ce7b97696e85da66033a1f3711f1d24681434c76600ae3cd891d7ea07b7fcbea --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-17 00:26:31,371 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-17 00:26:31,431 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-17 00:26:31,434 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-17 00:26:31,434 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-17 00:26:31,454 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-17 00:26:31,454 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-17 00:26:31,455 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-17 00:26:31,455 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-17 00:26:31,456 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-17 00:26:31,456 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-17 00:26:31,456 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-17 00:26:31,457 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-17 00:26:31,458 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-17 00:26:31,459 INFO L153 SettingsManager]: * Use SBE=true [2024-11-17 00:26:31,459 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-17 00:26:31,459 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-17 00:26:31,459 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-17 00:26:31,460 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-17 00:26:31,460 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-17 00:26:31,463 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-17 00:26:31,463 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-17 00:26:31,464 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-17 00:26:31,464 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-17 00:26:31,464 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-17 00:26:31,464 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-17 00:26:31,464 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-17 00:26:31,465 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-17 00:26:31,465 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-17 00:26:31,465 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-17 00:26:31,465 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-17 00:26:31,466 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-17 00:26:31,466 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-17 00:26:31,466 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 00:26:31,466 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-17 00:26:31,466 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-17 00:26:31,466 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-17 00:26:31,467 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-17 00:26:31,467 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-17 00:26:31,467 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-17 00:26:31,468 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-17 00:26:31,469 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-17 00:26:31,469 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ce7b97696e85da66033a1f3711f1d24681434c76600ae3cd891d7ea07b7fcbea [2024-11-17 00:26:31,693 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-17 00:26:31,712 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-17 00:26:31,714 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-17 00:26:31,715 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-17 00:26:31,715 INFO L274 PluginConnector]: CDTParser initialized [2024-11-17 00:26:31,716 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/memsafety/lockfree-3.0.i [2024-11-17 00:26:33,006 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-17 00:26:33,215 INFO L384 CDTParser]: Found 1 translation units. [2024-11-17 00:26:33,215 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/memsafety/lockfree-3.0.i [2024-11-17 00:26:33,224 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/206d9ad85/8fa160688dba472aa19bab103c4afa7d/FLAG324713a1c [2024-11-17 00:26:33,236 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/206d9ad85/8fa160688dba472aa19bab103c4afa7d [2024-11-17 00:26:33,238 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-17 00:26:33,239 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-17 00:26:33,244 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-17 00:26:33,244 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-17 00:26:33,249 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-17 00:26:33,249 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 12:26:33" (1/1) ... [2024-11-17 00:26:33,250 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@191c6627 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:26:33, skipping insertion in model container [2024-11-17 00:26:33,250 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 12:26:33" (1/1) ... [2024-11-17 00:26:33,286 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-17 00:26:33,563 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 00:26:33,572 INFO L200 MainTranslator]: Completed pre-run [2024-11-17 00:26:33,608 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 00:26:33,633 INFO L204 MainTranslator]: Completed translation [2024-11-17 00:26:33,634 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:26:33 WrapperNode [2024-11-17 00:26:33,634 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-17 00:26:33,635 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-17 00:26:33,635 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-17 00:26:33,635 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-17 00:26:33,642 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:26:33" (1/1) ... [2024-11-17 00:26:33,652 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:26:33" (1/1) ... [2024-11-17 00:26:33,680 INFO L138 Inliner]: procedures = 125, calls = 18, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 127 [2024-11-17 00:26:33,680 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-17 00:26:33,681 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-17 00:26:33,681 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-17 00:26:33,681 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-17 00:26:33,690 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:26:33" (1/1) ... [2024-11-17 00:26:33,690 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:26:33" (1/1) ... [2024-11-17 00:26:33,693 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:26:33" (1/1) ... [2024-11-17 00:26:33,709 INFO L175 MemorySlicer]: Split 10 memory accesses to 2 slices as follows [2, 8]. 80 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 5 writes are split as follows [0, 5]. [2024-11-17 00:26:33,710 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:26:33" (1/1) ... [2024-11-17 00:26:33,710 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:26:33" (1/1) ... [2024-11-17 00:26:33,720 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:26:33" (1/1) ... [2024-11-17 00:26:33,720 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:26:33" (1/1) ... [2024-11-17 00:26:33,721 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:26:33" (1/1) ... [2024-11-17 00:26:33,723 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:26:33" (1/1) ... [2024-11-17 00:26:33,725 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-17 00:26:33,725 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-17 00:26:33,726 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-17 00:26:33,726 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-17 00:26:33,727 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:26:33" (1/1) ... [2024-11-17 00:26:33,734 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 00:26:33,744 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 00:26:33,761 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) [2024-11-17 00:26:33,763 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 [2024-11-17 00:26:33,798 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-17 00:26:33,798 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-17 00:26:33,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-17 00:26:33,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-17 00:26:33,798 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-17 00:26:33,799 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-17 00:26:33,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-17 00:26:33,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-17 00:26:33,799 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-17 00:26:33,799 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-17 00:26:33,799 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-17 00:26:33,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-17 00:26:33,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-17 00:26:33,800 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-17 00:26:33,800 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-17 00:26:33,897 INFO L256 CfgBuilder]: Building ICFG [2024-11-17 00:26:33,898 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-17 00:26:34,134 INFO L? ?]: Removed 25 outVars from TransFormulas that were not future-live. [2024-11-17 00:26:34,134 INFO L307 CfgBuilder]: Performing block encoding [2024-11-17 00:26:34,145 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-17 00:26:34,146 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-17 00:26:34,146 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 12:26:34 BoogieIcfgContainer [2024-11-17 00:26:34,146 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-17 00:26:34,148 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-17 00:26:34,148 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-17 00:26:34,151 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-17 00:26:34,151 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 12:26:33" (1/3) ... [2024-11-17 00:26:34,152 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@665a74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 12:26:34, skipping insertion in model container [2024-11-17 00:26:34,152 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:26:33" (2/3) ... [2024-11-17 00:26:34,153 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@665a74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 12:26:34, skipping insertion in model container [2024-11-17 00:26:34,153 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 12:26:34" (3/3) ... [2024-11-17 00:26:34,154 INFO L112 eAbstractionObserver]: Analyzing ICFG lockfree-3.0.i [2024-11-17 00:26:34,167 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-17 00:26:34,167 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 20 error locations. [2024-11-17 00:26:34,204 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-17 00:26:34,209 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;@4951daa0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-17 00:26:34,210 INFO L334 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2024-11-17 00:26:34,213 INFO L276 IsEmpty]: Start isEmpty. Operand has 68 states, 47 states have (on average 1.851063829787234) internal successors, (87), 67 states have internal predecessors, (87), 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) [2024-11-17 00:26:34,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-17 00:26:34,218 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 00:26:34,219 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-17 00:26:34,219 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 17 more)] === [2024-11-17 00:26:34,223 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 00:26:34,223 INFO L85 PathProgramCache]: Analyzing trace with hash 52720286, now seen corresponding path program 1 times [2024-11-17 00:26:34,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 00:26:34,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571925778] [2024-11-17 00:26:34,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 00:26:34,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 00:26:34,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:26:34,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 00:26:34,349 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 00:26:34,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571925778] [2024-11-17 00:26:34,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [571925778] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 00:26:34,350 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 00:26:34,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-17 00:26:34,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572075385] [2024-11-17 00:26:34,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 00:26:34,357 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-17 00:26:34,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 00:26:34,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-17 00:26:34,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-17 00:26:34,381 INFO L87 Difference]: Start difference. First operand has 68 states, 47 states have (on average 1.851063829787234) internal successors, (87), 67 states have internal predecessors, (87), 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) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 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) [2024-11-17 00:26:34,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 00:26:34,396 INFO L93 Difference]: Finished difference Result 68 states and 85 transitions. [2024-11-17 00:26:34,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-17 00:26:34,400 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 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 [2024-11-17 00:26:34,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 00:26:34,406 INFO L225 Difference]: With dead ends: 68 [2024-11-17 00:26:34,408 INFO L226 Difference]: Without dead ends: 65 [2024-11-17 00:26:34,409 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-17 00:26:34,412 INFO L432 NwaCegarLoop]: 85 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-17 00:26:34,412 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-17 00:26:34,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2024-11-17 00:26:34,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2024-11-17 00:26:34,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 45 states have (on average 1.8222222222222222) internal successors, (82), 64 states have internal predecessors, (82), 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) [2024-11-17 00:26:34,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 82 transitions. [2024-11-17 00:26:34,469 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 82 transitions. Word has length 6 [2024-11-17 00:26:34,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 00:26:34,469 INFO L471 AbstractCegarLoop]: Abstraction has 65 states and 82 transitions. [2024-11-17 00:26:34,469 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 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) [2024-11-17 00:26:34,470 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 82 transitions. [2024-11-17 00:26:34,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-17 00:26:34,470 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 00:26:34,470 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 00:26:34,470 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-17 00:26:34,471 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 17 more)] === [2024-11-17 00:26:34,471 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 00:26:34,471 INFO L85 PathProgramCache]: Analyzing trace with hash -815439966, now seen corresponding path program 1 times [2024-11-17 00:26:34,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 00:26:34,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263176073] [2024-11-17 00:26:34,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 00:26:34,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 00:26:34,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:26:34,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 00:26:34,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 00:26:34,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263176073] [2024-11-17 00:26:34,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1263176073] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 00:26:34,576 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 00:26:34,576 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-17 00:26:34,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788161931] [2024-11-17 00:26:34,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 00:26:34,578 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-17 00:26:34,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 00:26:34,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 00:26:34,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 00:26:34,580 INFO L87 Difference]: Start difference. First operand 65 states and 82 transitions. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 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) [2024-11-17 00:26:34,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 00:26:34,618 INFO L93 Difference]: Finished difference Result 113 states and 147 transitions. [2024-11-17 00:26:34,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 00:26:34,619 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 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 8 [2024-11-17 00:26:34,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 00:26:34,620 INFO L225 Difference]: With dead ends: 113 [2024-11-17 00:26:34,620 INFO L226 Difference]: Without dead ends: 113 [2024-11-17 00:26:34,620 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 [2024-11-17 00:26:34,621 INFO L432 NwaCegarLoop]: 79 mSDtfsCounter, 63 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-17 00:26:34,621 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 142 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-17 00:26:34,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2024-11-17 00:26:34,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 95. [2024-11-17 00:26:34,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 75 states have (on average 1.8533333333333333) internal successors, (139), 94 states have internal predecessors, (139), 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) [2024-11-17 00:26:34,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 139 transitions. [2024-11-17 00:26:34,630 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 139 transitions. Word has length 8 [2024-11-17 00:26:34,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 00:26:34,634 INFO L471 AbstractCegarLoop]: Abstraction has 95 states and 139 transitions. [2024-11-17 00:26:34,634 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 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) [2024-11-17 00:26:34,634 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 139 transitions. [2024-11-17 00:26:34,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-17 00:26:34,635 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 00:26:34,635 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 00:26:34,635 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-17 00:26:34,635 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 17 more)] === [2024-11-17 00:26:34,636 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 00:26:34,636 INFO L85 PathProgramCache]: Analyzing trace with hash -815334770, now seen corresponding path program 1 times [2024-11-17 00:26:34,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 00:26:34,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609972671] [2024-11-17 00:26:34,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 00:26:34,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 00:26:34,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:26:34,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 00:26:34,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 00:26:34,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [609972671] [2024-11-17 00:26:34,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [609972671] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 00:26:34,727 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 00:26:34,727 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-17 00:26:34,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961409491] [2024-11-17 00:26:34,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 00:26:34,727 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-17 00:26:34,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 00:26:34,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 00:26:34,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 00:26:34,728 INFO L87 Difference]: Start difference. First operand 95 states and 139 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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) [2024-11-17 00:26:34,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 00:26:34,807 INFO L93 Difference]: Finished difference Result 176 states and 256 transitions. [2024-11-17 00:26:34,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 00:26:34,808 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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 8 [2024-11-17 00:26:34,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 00:26:34,809 INFO L225 Difference]: With dead ends: 176 [2024-11-17 00:26:34,811 INFO L226 Difference]: Without dead ends: 176 [2024-11-17 00:26:34,811 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 [2024-11-17 00:26:34,812 INFO L432 NwaCegarLoop]: 129 mSDtfsCounter, 72 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 183 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-17 00:26:34,812 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 183 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-17 00:26:34,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2024-11-17 00:26:34,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 149. [2024-11-17 00:26:34,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 131 states have (on average 1.8091603053435115) internal successors, (237), 148 states have internal predecessors, (237), 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) [2024-11-17 00:26:34,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 237 transitions. [2024-11-17 00:26:34,821 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 237 transitions. Word has length 8 [2024-11-17 00:26:34,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 00:26:34,821 INFO L471 AbstractCegarLoop]: Abstraction has 149 states and 237 transitions. [2024-11-17 00:26:34,821 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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) [2024-11-17 00:26:34,821 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 237 transitions. [2024-11-17 00:26:34,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-17 00:26:34,822 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 00:26:34,822 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 00:26:34,822 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-17 00:26:34,822 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 17 more)] === [2024-11-17 00:26:34,822 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 00:26:34,823 INFO L85 PathProgramCache]: Analyzing trace with hash -815334769, now seen corresponding path program 1 times [2024-11-17 00:26:34,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 00:26:34,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615107144] [2024-11-17 00:26:34,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 00:26:34,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 00:26:34,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:26:34,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 00:26:34,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 00:26:34,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1615107144] [2024-11-17 00:26:34,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1615107144] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 00:26:34,943 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 00:26:34,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-17 00:26:34,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053375486] [2024-11-17 00:26:34,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 00:26:34,943 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-17 00:26:34,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 00:26:34,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 00:26:34,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 00:26:34,944 INFO L87 Difference]: Start difference. First operand 149 states and 237 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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) [2024-11-17 00:26:34,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 00:26:34,999 INFO L93 Difference]: Finished difference Result 228 states and 350 transitions. [2024-11-17 00:26:34,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 00:26:34,999 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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 8 [2024-11-17 00:26:35,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 00:26:35,001 INFO L225 Difference]: With dead ends: 228 [2024-11-17 00:26:35,001 INFO L226 Difference]: Without dead ends: 228 [2024-11-17 00:26:35,001 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 [2024-11-17 00:26:35,002 INFO L432 NwaCegarLoop]: 134 mSDtfsCounter, 71 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-17 00:26:35,002 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 193 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-17 00:26:35,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2024-11-17 00:26:35,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 203. [2024-11-17 00:26:35,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 187 states have (on average 1.7700534759358288) internal successors, (331), 202 states have internal predecessors, (331), 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) [2024-11-17 00:26:35,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 331 transitions. [2024-11-17 00:26:35,013 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 331 transitions. Word has length 8 [2024-11-17 00:26:35,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 00:26:35,013 INFO L471 AbstractCegarLoop]: Abstraction has 203 states and 331 transitions. [2024-11-17 00:26:35,013 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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) [2024-11-17 00:26:35,013 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 331 transitions. [2024-11-17 00:26:35,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-17 00:26:35,014 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 00:26:35,014 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 00:26:35,014 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-17 00:26:35,014 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 17 more)] === [2024-11-17 00:26:35,015 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 00:26:35,015 INFO L85 PathProgramCache]: Analyzing trace with hash 494427598, now seen corresponding path program 1 times [2024-11-17 00:26:35,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 00:26:35,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278007109] [2024-11-17 00:26:35,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 00:26:35,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 00:26:35,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:26:35,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 00:26:35,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 00:26:35,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278007109] [2024-11-17 00:26:35,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1278007109] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 00:26:35,085 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 00:26:35,085 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-17 00:26:35,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448595829] [2024-11-17 00:26:35,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 00:26:35,086 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-17 00:26:35,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 00:26:35,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-17 00:26:35,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-17 00:26:35,091 INFO L87 Difference]: Start difference. First operand 203 states and 331 transitions. Second operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 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) [2024-11-17 00:26:35,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 00:26:35,161 INFO L93 Difference]: Finished difference Result 378 states and 590 transitions. [2024-11-17 00:26:35,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-17 00:26:35,162 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 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 9 [2024-11-17 00:26:35,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 00:26:35,164 INFO L225 Difference]: With dead ends: 378 [2024-11-17 00:26:35,164 INFO L226 Difference]: Without dead ends: 378 [2024-11-17 00:26:35,164 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-17 00:26:35,165 INFO L432 NwaCegarLoop]: 71 mSDtfsCounter, 56 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 267 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-17 00:26:35,165 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 267 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-17 00:26:35,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 378 states. [2024-11-17 00:26:35,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 378 to 347. [2024-11-17 00:26:35,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 347 states, 331 states have (on average 1.7069486404833838) internal successors, (565), 346 states have internal predecessors, (565), 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) [2024-11-17 00:26:35,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 565 transitions. [2024-11-17 00:26:35,183 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 565 transitions. Word has length 9 [2024-11-17 00:26:35,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 00:26:35,184 INFO L471 AbstractCegarLoop]: Abstraction has 347 states and 565 transitions. [2024-11-17 00:26:35,184 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 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) [2024-11-17 00:26:35,184 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 565 transitions. [2024-11-17 00:26:35,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-17 00:26:35,184 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 00:26:35,185 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 00:26:35,185 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-17 00:26:35,185 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 17 more)] === [2024-11-17 00:26:35,185 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 00:26:35,185 INFO L85 PathProgramCache]: Analyzing trace with hash -1953799721, now seen corresponding path program 1 times [2024-11-17 00:26:35,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 00:26:35,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286601124] [2024-11-17 00:26:35,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 00:26:35,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 00:26:35,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:26:35,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 00:26:35,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 00:26:35,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [286601124] [2024-11-17 00:26:35,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [286601124] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 00:26:35,212 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 00:26:35,212 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-17 00:26:35,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844304350] [2024-11-17 00:26:35,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 00:26:35,213 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-17 00:26:35,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 00:26:35,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 00:26:35,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 00:26:35,213 INFO L87 Difference]: Start difference. First operand 347 states and 565 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 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) [2024-11-17 00:26:35,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 00:26:35,256 INFO L93 Difference]: Finished difference Result 371 states and 583 transitions. [2024-11-17 00:26:35,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 00:26:35,256 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 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 10 [2024-11-17 00:26:35,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 00:26:35,258 INFO L225 Difference]: With dead ends: 371 [2024-11-17 00:26:35,261 INFO L226 Difference]: Without dead ends: 366 [2024-11-17 00:26:35,261 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 [2024-11-17 00:26:35,262 INFO L432 NwaCegarLoop]: 72 mSDtfsCounter, 64 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-17 00:26:35,262 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 127 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-17 00:26:35,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2024-11-17 00:26:35,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 349. [2024-11-17 00:26:35,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 349 states, 333 states have (on average 1.6906906906906907) internal successors, (563), 348 states have internal predecessors, (563), 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) [2024-11-17 00:26:35,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 563 transitions. [2024-11-17 00:26:35,274 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 563 transitions. Word has length 10 [2024-11-17 00:26:35,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 00:26:35,274 INFO L471 AbstractCegarLoop]: Abstraction has 349 states and 563 transitions. [2024-11-17 00:26:35,274 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 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) [2024-11-17 00:26:35,274 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 563 transitions. [2024-11-17 00:26:35,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-17 00:26:35,275 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 00:26:35,275 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 00:26:35,275 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-17 00:26:35,275 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 17 more)] === [2024-11-17 00:26:35,279 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 00:26:35,279 INFO L85 PathProgramCache]: Analyzing trace with hash -1812525069, now seen corresponding path program 1 times [2024-11-17 00:26:35,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 00:26:35,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855793318] [2024-11-17 00:26:35,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 00:26:35,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 00:26:35,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:26:35,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 00:26:35,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 00:26:35,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855793318] [2024-11-17 00:26:35,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1855793318] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 00:26:35,339 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 00:26:35,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-17 00:26:35,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96748004] [2024-11-17 00:26:35,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 00:26:35,339 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-17 00:26:35,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 00:26:35,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-17 00:26:35,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-17 00:26:35,340 INFO L87 Difference]: Start difference. First operand 349 states and 563 transitions. Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 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) [2024-11-17 00:26:35,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 00:26:35,391 INFO L93 Difference]: Finished difference Result 618 states and 932 transitions. [2024-11-17 00:26:35,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-17 00:26:35,391 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 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 10 [2024-11-17 00:26:35,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 00:26:35,393 INFO L225 Difference]: With dead ends: 618 [2024-11-17 00:26:35,394 INFO L226 Difference]: Without dead ends: 618 [2024-11-17 00:26:35,394 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-17 00:26:35,397 INFO L432 NwaCegarLoop]: 72 mSDtfsCounter, 48 mSDsluCounter, 199 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 271 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-17 00:26:35,398 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 271 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-17 00:26:35,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 618 states. [2024-11-17 00:26:35,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 618 to 581. [2024-11-17 00:26:35,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 581 states, 565 states have (on average 1.5911504424778762) internal successors, (899), 580 states have internal predecessors, (899), 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) [2024-11-17 00:26:35,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 581 states to 581 states and 899 transitions. [2024-11-17 00:26:35,410 INFO L78 Accepts]: Start accepts. Automaton has 581 states and 899 transitions. Word has length 10 [2024-11-17 00:26:35,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 00:26:35,410 INFO L471 AbstractCegarLoop]: Abstraction has 581 states and 899 transitions. [2024-11-17 00:26:35,410 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 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) [2024-11-17 00:26:35,410 INFO L276 IsEmpty]: Start isEmpty. Operand 581 states and 899 transitions. [2024-11-17 00:26:35,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-17 00:26:35,411 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 00:26:35,411 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 00:26:35,412 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-17 00:26:35,412 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 17 more)] === [2024-11-17 00:26:35,412 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 00:26:35,412 INFO L85 PathProgramCache]: Analyzing trace with hash 1097754343, now seen corresponding path program 1 times [2024-11-17 00:26:35,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 00:26:35,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108694949] [2024-11-17 00:26:35,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 00:26:35,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 00:26:35,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:26:35,501 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 00:26:35,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 00:26:35,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108694949] [2024-11-17 00:26:35,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2108694949] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 00:26:35,502 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 00:26:35,502 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-17 00:26:35,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862038178] [2024-11-17 00:26:35,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 00:26:35,503 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-17 00:26:35,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 00:26:35,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-17 00:26:35,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-17 00:26:35,504 INFO L87 Difference]: Start difference. First operand 581 states and 899 transitions. Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 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) [2024-11-17 00:26:35,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 00:26:35,555 INFO L93 Difference]: Finished difference Result 931 states and 1443 transitions. [2024-11-17 00:26:35,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-17 00:26:35,556 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 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 16 [2024-11-17 00:26:35,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 00:26:35,560 INFO L225 Difference]: With dead ends: 931 [2024-11-17 00:26:35,560 INFO L226 Difference]: Without dead ends: 931 [2024-11-17 00:26:35,560 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-17 00:26:35,561 INFO L432 NwaCegarLoop]: 108 mSDtfsCounter, 51 mSDsluCounter, 232 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 340 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-17 00:26:35,562 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 340 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-17 00:26:35,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 931 states. [2024-11-17 00:26:35,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 931 to 889. [2024-11-17 00:26:35,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 889 states, 873 states have (on average 1.5887743413516608) internal successors, (1387), 888 states have internal predecessors, (1387), 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) [2024-11-17 00:26:35,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 889 states to 889 states and 1387 transitions. [2024-11-17 00:26:35,579 INFO L78 Accepts]: Start accepts. Automaton has 889 states and 1387 transitions. Word has length 16 [2024-11-17 00:26:35,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 00:26:35,580 INFO L471 AbstractCegarLoop]: Abstraction has 889 states and 1387 transitions. [2024-11-17 00:26:35,580 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 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) [2024-11-17 00:26:35,580 INFO L276 IsEmpty]: Start isEmpty. Operand 889 states and 1387 transitions. [2024-11-17 00:26:35,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-17 00:26:35,581 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 00:26:35,581 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 00:26:35,581 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-17 00:26:35,581 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 17 more)] === [2024-11-17 00:26:35,581 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 00:26:35,582 INFO L85 PathProgramCache]: Analyzing trace with hash 1985258024, now seen corresponding path program 1 times [2024-11-17 00:26:35,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 00:26:35,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170984199] [2024-11-17 00:26:35,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 00:26:35,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 00:26:35,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:26:35,704 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 00:26:35,704 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 00:26:35,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170984199] [2024-11-17 00:26:35,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [170984199] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 00:26:35,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [904820908] [2024-11-17 00:26:35,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 00:26:35,705 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 00:26:35,707 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 00:26:35,709 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) [2024-11-17 00:26:35,713 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-17 00:26:35,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:26:35,776 INFO L255 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-17 00:26:35,780 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 00:26:35,835 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 00:26:35,835 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 00:26:35,880 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 00:26:35,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [904820908] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 00:26:35,881 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 00:26:35,881 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 8 [2024-11-17 00:26:35,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089473112] [2024-11-17 00:26:35,881 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 00:26:35,881 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-17 00:26:35,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 00:26:35,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-17 00:26:35,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-17 00:26:35,882 INFO L87 Difference]: Start difference. First operand 889 states and 1387 transitions. Second operand has 8 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 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) [2024-11-17 00:26:35,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 00:26:35,988 INFO L93 Difference]: Finished difference Result 1495 states and 2221 transitions. [2024-11-17 00:26:35,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-17 00:26:35,989 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 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 16 [2024-11-17 00:26:35,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 00:26:35,993 INFO L225 Difference]: With dead ends: 1495 [2024-11-17 00:26:35,993 INFO L226 Difference]: Without dead ends: 1495 [2024-11-17 00:26:35,993 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 28 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2024-11-17 00:26:35,994 INFO L432 NwaCegarLoop]: 72 mSDtfsCounter, 148 mSDsluCounter, 373 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 445 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-17 00:26:35,994 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 445 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-17 00:26:35,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1495 states. [2024-11-17 00:26:36,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1495 to 1373. [2024-11-17 00:26:36,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1373 states, 1357 states have (on average 1.5350036845983788) internal successors, (2083), 1372 states have internal predecessors, (2083), 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) [2024-11-17 00:26:36,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1373 states to 1373 states and 2083 transitions. [2024-11-17 00:26:36,014 INFO L78 Accepts]: Start accepts. Automaton has 1373 states and 2083 transitions. Word has length 16 [2024-11-17 00:26:36,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 00:26:36,015 INFO L471 AbstractCegarLoop]: Abstraction has 1373 states and 2083 transitions. [2024-11-17 00:26:36,015 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 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) [2024-11-17 00:26:36,015 INFO L276 IsEmpty]: Start isEmpty. Operand 1373 states and 2083 transitions. [2024-11-17 00:26:36,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-17 00:26:36,016 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 00:26:36,016 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 00:26:36,034 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-17 00:26:36,216 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 00:26:36,217 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 17 more)] === [2024-11-17 00:26:36,217 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 00:26:36,218 INFO L85 PathProgramCache]: Analyzing trace with hash 1546549153, now seen corresponding path program 1 times [2024-11-17 00:26:36,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 00:26:36,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156719489] [2024-11-17 00:26:36,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 00:26:36,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 00:26:36,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:26:36,288 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 00:26:36,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 00:26:36,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156719489] [2024-11-17 00:26:36,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [156719489] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 00:26:36,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [542694288] [2024-11-17 00:26:36,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 00:26:36,289 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 00:26:36,289 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 00:26:36,292 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) [2024-11-17 00:26:36,293 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-17 00:26:36,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:26:36,354 INFO L255 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-17 00:26:36,355 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 00:26:36,385 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 00:26:36,385 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 00:26:36,418 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 00:26:36,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [542694288] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 00:26:36,419 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 00:26:36,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 5 [2024-11-17 00:26:36,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371420025] [2024-11-17 00:26:36,419 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 00:26:36,420 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-17 00:26:36,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 00:26:36,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-17 00:26:36,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-17 00:26:36,420 INFO L87 Difference]: Start difference. First operand 1373 states and 2083 transitions. Second operand has 6 states, 6 states have (on average 4.0) 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) [2024-11-17 00:26:36,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 00:26:36,461 INFO L93 Difference]: Finished difference Result 1373 states and 2047 transitions. [2024-11-17 00:26:36,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-17 00:26:36,462 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.0) 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 18 [2024-11-17 00:26:36,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 00:26:36,465 INFO L225 Difference]: With dead ends: 1373 [2024-11-17 00:26:36,466 INFO L226 Difference]: Without dead ends: 1373 [2024-11-17 00:26:36,466 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 33 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-17 00:26:36,467 INFO L432 NwaCegarLoop]: 105 mSDtfsCounter, 117 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 309 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-17 00:26:36,468 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 309 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-17 00:26:36,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1373 states. [2024-11-17 00:26:36,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1373 to 1361. [2024-11-17 00:26:36,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1361 states, 1345 states have (on average 1.5174721189591078) internal successors, (2041), 1360 states have internal predecessors, (2041), 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) [2024-11-17 00:26:36,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1361 states to 1361 states and 2041 transitions. [2024-11-17 00:26:36,489 INFO L78 Accepts]: Start accepts. Automaton has 1361 states and 2041 transitions. Word has length 18 [2024-11-17 00:26:36,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 00:26:36,489 INFO L471 AbstractCegarLoop]: Abstraction has 1361 states and 2041 transitions. [2024-11-17 00:26:36,490 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.0) 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) [2024-11-17 00:26:36,490 INFO L276 IsEmpty]: Start isEmpty. Operand 1361 states and 2041 transitions. [2024-11-17 00:26:36,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-17 00:26:36,491 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 00:26:36,491 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 00:26:36,506 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-17 00:26:36,695 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,SelfDestructingSolverStorable9 [2024-11-17 00:26:36,696 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 17 more)] === [2024-11-17 00:26:36,696 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 00:26:36,696 INFO L85 PathProgramCache]: Analyzing trace with hash 2120661557, now seen corresponding path program 1 times [2024-11-17 00:26:36,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 00:26:36,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421798534] [2024-11-17 00:26:36,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 00:26:36,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 00:26:36,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:26:36,726 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-17 00:26:36,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 00:26:36,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1421798534] [2024-11-17 00:26:36,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1421798534] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 00:26:36,726 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 00:26:36,726 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 00:26:36,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704940800] [2024-11-17 00:26:36,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 00:26:36,727 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 00:26:36,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 00:26:36,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 00:26:36,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 00:26:36,728 INFO L87 Difference]: Start difference. First operand 1361 states and 2041 transitions. Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 3 states have internal predecessors, (21), 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) [2024-11-17 00:26:36,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 00:26:36,750 INFO L93 Difference]: Finished difference Result 582 states and 841 transitions. [2024-11-17 00:26:36,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 00:26:36,750 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 3 states have internal predecessors, (21), 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 21 [2024-11-17 00:26:36,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 00:26:36,752 INFO L225 Difference]: With dead ends: 582 [2024-11-17 00:26:36,752 INFO L226 Difference]: Without dead ends: 582 [2024-11-17 00:26:36,752 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 00:26:36,752 INFO L432 NwaCegarLoop]: 72 mSDtfsCounter, 49 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 178 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-17 00:26:36,753 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 178 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-17 00:26:36,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 582 states. [2024-11-17 00:26:36,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 582 to 566. [2024-11-17 00:26:36,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 566 states, 554 states have (on average 1.5) internal successors, (831), 565 states have internal predecessors, (831), 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) [2024-11-17 00:26:36,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 566 states to 566 states and 831 transitions. [2024-11-17 00:26:36,761 INFO L78 Accepts]: Start accepts. Automaton has 566 states and 831 transitions. Word has length 21 [2024-11-17 00:26:36,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 00:26:36,761 INFO L471 AbstractCegarLoop]: Abstraction has 566 states and 831 transitions. [2024-11-17 00:26:36,761 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 3 states have internal predecessors, (21), 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) [2024-11-17 00:26:36,762 INFO L276 IsEmpty]: Start isEmpty. Operand 566 states and 831 transitions. [2024-11-17 00:26:36,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-17 00:26:36,762 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 00:26:36,762 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 00:26:36,762 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-17 00:26:36,762 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 17 more)] === [2024-11-17 00:26:36,763 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 00:26:36,763 INFO L85 PathProgramCache]: Analyzing trace with hash 1680763932, now seen corresponding path program 1 times [2024-11-17 00:26:36,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 00:26:36,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017361947] [2024-11-17 00:26:36,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 00:26:36,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 00:26:36,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:26:36,855 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 12 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 00:26:36,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 00:26:36,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2017361947] [2024-11-17 00:26:36,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2017361947] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 00:26:36,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [633491744] [2024-11-17 00:26:36,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 00:26:36,858 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 00:26:36,858 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 00:26:36,859 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) [2024-11-17 00:26:36,861 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-17 00:26:36,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:26:36,920 INFO L255 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-17 00:26:36,921 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 00:26:36,985 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 12 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 00:26:36,985 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 00:26:37,023 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 12 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 00:26:37,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [633491744] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 00:26:37,024 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 00:26:37,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 3 [2024-11-17 00:26:37,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708948476] [2024-11-17 00:26:37,025 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 00:26:37,025 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 00:26:37,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 00:26:37,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 00:26:37,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 00:26:37,027 INFO L87 Difference]: Start difference. First operand 566 states and 831 transitions. Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 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) [2024-11-17 00:26:37,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 00:26:37,094 INFO L93 Difference]: Finished difference Result 1670 states and 2423 transitions. [2024-11-17 00:26:37,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 00:26:37,095 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 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 [2024-11-17 00:26:37,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 00:26:37,100 INFO L225 Difference]: With dead ends: 1670 [2024-11-17 00:26:37,101 INFO L226 Difference]: Without dead ends: 1670 [2024-11-17 00:26:37,101 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-17 00:26:37,102 INFO L432 NwaCegarLoop]: 56 mSDtfsCounter, 189 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 189 SdHoareTripleChecker+Valid, 170 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-17 00:26:37,102 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [189 Valid, 170 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-17 00:26:37,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1670 states. [2024-11-17 00:26:37,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1670 to 1604. [2024-11-17 00:26:37,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1604 states, 1592 states have (on average 1.4880653266331658) internal successors, (2369), 1603 states have internal predecessors, (2369), 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) [2024-11-17 00:26:37,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1604 states to 1604 states and 2369 transitions. [2024-11-17 00:26:37,129 INFO L78 Accepts]: Start accepts. Automaton has 1604 states and 2369 transitions. Word has length 24 [2024-11-17 00:26:37,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 00:26:37,130 INFO L471 AbstractCegarLoop]: Abstraction has 1604 states and 2369 transitions. [2024-11-17 00:26:37,131 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 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) [2024-11-17 00:26:37,131 INFO L276 IsEmpty]: Start isEmpty. Operand 1604 states and 2369 transitions. [2024-11-17 00:26:37,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-17 00:26:37,131 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 00:26:37,131 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 00:26:37,145 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-17 00:26:37,332 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 00:26:37,332 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 17 more)] === [2024-11-17 00:26:37,333 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 00:26:37,333 INFO L85 PathProgramCache]: Analyzing trace with hash 1209208832, now seen corresponding path program 1 times [2024-11-17 00:26:37,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 00:26:37,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714925236] [2024-11-17 00:26:37,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 00:26:37,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 00:26:37,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:26:37,411 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 16 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-17 00:26:37,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 00:26:37,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [714925236] [2024-11-17 00:26:37,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [714925236] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 00:26:37,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1113711363] [2024-11-17 00:26:37,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 00:26:37,412 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 00:26:37,412 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 00:26:37,414 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) [2024-11-17 00:26:37,415 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-17 00:26:37,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:26:37,479 INFO L255 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-17 00:26:37,480 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 00:26:37,507 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 12 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-17 00:26:37,507 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 00:26:37,524 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 12 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-17 00:26:37,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1113711363] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 00:26:37,525 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 00:26:37,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 7 [2024-11-17 00:26:37,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184588894] [2024-11-17 00:26:37,525 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 00:26:37,526 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-17 00:26:37,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 00:26:37,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-17 00:26:37,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-17 00:26:37,526 INFO L87 Difference]: Start difference. First operand 1604 states and 2369 transitions. Second operand has 7 states, 7 states have (on average 4.857142857142857) internal successors, (34), 7 states have internal predecessors, (34), 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) [2024-11-17 00:26:37,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 00:26:37,601 INFO L93 Difference]: Finished difference Result 416 states and 579 transitions. [2024-11-17 00:26:37,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-17 00:26:37,601 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.857142857142857) internal successors, (34), 7 states have internal predecessors, (34), 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 27 [2024-11-17 00:26:37,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 00:26:37,602 INFO L225 Difference]: With dead ends: 416 [2024-11-17 00:26:37,602 INFO L226 Difference]: Without dead ends: 416 [2024-11-17 00:26:37,602 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2024-11-17 00:26:37,603 INFO L432 NwaCegarLoop]: 94 mSDtfsCounter, 89 mSDsluCounter, 273 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 367 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-17 00:26:37,603 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 367 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-17 00:26:37,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 416 states. [2024-11-17 00:26:37,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 416 to 341. [2024-11-17 00:26:37,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 341 states, 329 states have (on average 1.452887537993921) internal successors, (478), 340 states have internal predecessors, (478), 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) [2024-11-17 00:26:37,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 478 transitions. [2024-11-17 00:26:37,609 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 478 transitions. Word has length 27 [2024-11-17 00:26:37,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 00:26:37,609 INFO L471 AbstractCegarLoop]: Abstraction has 341 states and 478 transitions. [2024-11-17 00:26:37,609 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.857142857142857) internal successors, (34), 7 states have internal predecessors, (34), 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) [2024-11-17 00:26:37,609 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 478 transitions. [2024-11-17 00:26:37,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-17 00:26:37,610 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 00:26:37,610 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 00:26:37,623 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-17 00:26:37,811 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 00:26:37,812 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 17 more)] === [2024-11-17 00:26:37,812 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 00:26:37,812 INFO L85 PathProgramCache]: Analyzing trace with hash 564875401, now seen corresponding path program 1 times [2024-11-17 00:26:37,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 00:26:37,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850262187] [2024-11-17 00:26:37,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 00:26:37,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 00:26:37,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:26:37,890 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 7 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 00:26:37,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 00:26:37,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [850262187] [2024-11-17 00:26:37,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [850262187] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 00:26:37,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [30966302] [2024-11-17 00:26:37,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 00:26:37,891 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 00:26:37,891 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 00:26:37,892 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) [2024-11-17 00:26:37,894 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-17 00:26:37,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:26:37,955 INFO L255 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-17 00:26:37,956 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 00:26:37,980 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 7 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 00:26:37,983 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 00:26:38,023 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 7 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 00:26:38,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [30966302] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 00:26:38,024 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 00:26:38,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 8 [2024-11-17 00:26:38,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387594652] [2024-11-17 00:26:38,024 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 00:26:38,044 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-17 00:26:38,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 00:26:38,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-17 00:26:38,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-11-17 00:26:38,045 INFO L87 Difference]: Start difference. First operand 341 states and 478 transitions. Second operand has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 8 states have internal predecessors, (48), 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) [2024-11-17 00:26:38,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 00:26:38,159 INFO L93 Difference]: Finished difference Result 986 states and 1330 transitions. [2024-11-17 00:26:38,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-17 00:26:38,160 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 8 states have internal predecessors, (48), 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 [2024-11-17 00:26:38,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 00:26:38,162 INFO L225 Difference]: With dead ends: 986 [2024-11-17 00:26:38,162 INFO L226 Difference]: Without dead ends: 986 [2024-11-17 00:26:38,163 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=168, Unknown=0, NotChecked=0, Total=240 [2024-11-17 00:26:38,163 INFO L432 NwaCegarLoop]: 113 mSDtfsCounter, 270 mSDsluCounter, 509 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 270 SdHoareTripleChecker+Valid, 622 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-17 00:26:38,163 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [270 Valid, 622 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-17 00:26:38,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 986 states. [2024-11-17 00:26:38,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 986 to 881. [2024-11-17 00:26:38,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 881 states, 869 states have (on average 1.42692750287687) internal successors, (1240), 880 states have internal predecessors, (1240), 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) [2024-11-17 00:26:38,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 881 states to 881 states and 1240 transitions. [2024-11-17 00:26:38,179 INFO L78 Accepts]: Start accepts. Automaton has 881 states and 1240 transitions. Word has length 29 [2024-11-17 00:26:38,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 00:26:38,180 INFO L471 AbstractCegarLoop]: Abstraction has 881 states and 1240 transitions. [2024-11-17 00:26:38,180 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 8 states have internal predecessors, (48), 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) [2024-11-17 00:26:38,180 INFO L276 IsEmpty]: Start isEmpty. Operand 881 states and 1240 transitions. [2024-11-17 00:26:38,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-17 00:26:38,181 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 00:26:38,181 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 5, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 00:26:38,196 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-17 00:26:38,385 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-17 00:26:38,386 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 17 more)] === [2024-11-17 00:26:38,386 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 00:26:38,386 INFO L85 PathProgramCache]: Analyzing trace with hash 1328968864, now seen corresponding path program 1 times [2024-11-17 00:26:38,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 00:26:38,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52172020] [2024-11-17 00:26:38,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 00:26:38,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 00:26:38,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:26:38,513 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 22 proven. 36 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-17 00:26:38,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 00:26:38,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52172020] [2024-11-17 00:26:38,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [52172020] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 00:26:38,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [867729727] [2024-11-17 00:26:38,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 00:26:38,514 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 00:26:38,514 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 00:26:38,516 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) [2024-11-17 00:26:38,517 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-17 00:26:38,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:26:38,593 INFO L255 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-17 00:26:38,595 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 00:26:38,665 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 38 proven. 17 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-17 00:26:38,666 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 00:26:38,737 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 38 proven. 17 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-17 00:26:38,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [867729727] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 00:26:38,737 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 00:26:38,737 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 6, 6] total 12 [2024-11-17 00:26:38,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125176849] [2024-11-17 00:26:38,738 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 00:26:38,738 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-17 00:26:38,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 00:26:38,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-17 00:26:38,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2024-11-17 00:26:38,739 INFO L87 Difference]: Start difference. First operand 881 states and 1240 transitions. Second operand has 12 states, 12 states have (on average 8.25) internal successors, (99), 12 states have internal predecessors, (99), 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) [2024-11-17 00:26:39,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 00:26:39,949 INFO L93 Difference]: Finished difference Result 2690 states and 3587 transitions. [2024-11-17 00:26:39,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2024-11-17 00:26:39,950 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.25) internal successors, (99), 12 states have internal predecessors, (99), 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 51 [2024-11-17 00:26:39,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 00:26:39,956 INFO L225 Difference]: With dead ends: 2690 [2024-11-17 00:26:39,957 INFO L226 Difference]: Without dead ends: 2690 [2024-11-17 00:26:39,959 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 127 SyntacticMatches, 2 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1423 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=881, Invalid=3675, Unknown=0, NotChecked=0, Total=4556 [2024-11-17 00:26:39,959 INFO L432 NwaCegarLoop]: 140 mSDtfsCounter, 841 mSDsluCounter, 779 mSDsCounter, 0 mSdLazyCounter, 1017 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 841 SdHoareTripleChecker+Valid, 919 SdHoareTripleChecker+Invalid, 1041 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 1017 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-17 00:26:39,960 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [841 Valid, 919 Invalid, 1041 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 1017 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-17 00:26:39,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2690 states. [2024-11-17 00:26:39,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2690 to 2056. [2024-11-17 00:26:39,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2056 states, 2045 states have (on average 1.425916870415648) internal successors, (2916), 2055 states have internal predecessors, (2916), 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) [2024-11-17 00:26:39,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2056 states to 2056 states and 2916 transitions. [2024-11-17 00:26:39,996 INFO L78 Accepts]: Start accepts. Automaton has 2056 states and 2916 transitions. Word has length 51 [2024-11-17 00:26:39,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 00:26:39,996 INFO L471 AbstractCegarLoop]: Abstraction has 2056 states and 2916 transitions. [2024-11-17 00:26:39,996 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.25) internal successors, (99), 12 states have internal predecessors, (99), 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) [2024-11-17 00:26:39,996 INFO L276 IsEmpty]: Start isEmpty. Operand 2056 states and 2916 transitions. [2024-11-17 00:26:39,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-11-17 00:26:39,997 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 00:26:39,997 INFO L215 NwaCegarLoop]: trace histogram [6, 5, 5, 5, 4, 4, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 00:26:40,010 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-17 00:26:40,198 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-17 00:26:40,198 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 17 more)] === [2024-11-17 00:26:40,198 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 00:26:40,199 INFO L85 PathProgramCache]: Analyzing trace with hash -329277618, now seen corresponding path program 1 times [2024-11-17 00:26:40,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 00:26:40,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281641228] [2024-11-17 00:26:40,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 00:26:40,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 00:26:40,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:26:40,317 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 50 proven. 2 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-17 00:26:40,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 00:26:40,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [281641228] [2024-11-17 00:26:40,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [281641228] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 00:26:40,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [380280377] [2024-11-17 00:26:40,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 00:26:40,319 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 00:26:40,319 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 00:26:40,320 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) [2024-11-17 00:26:40,321 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-17 00:26:40,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:26:40,397 INFO L255 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-17 00:26:40,399 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 00:26:40,478 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 19 proven. 65 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 00:26:40,479 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 00:26:40,557 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 19 proven. 65 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 00:26:40,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [380280377] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 00:26:40,558 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 00:26:40,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8, 8] total 13 [2024-11-17 00:26:40,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100831315] [2024-11-17 00:26:40,558 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 00:26:40,558 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-17 00:26:40,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 00:26:40,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-17 00:26:40,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2024-11-17 00:26:40,559 INFO L87 Difference]: Start difference. First operand 2056 states and 2916 transitions. Second operand has 13 states, 13 states have (on average 6.3076923076923075) internal successors, (82), 13 states have internal predecessors, (82), 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) [2024-11-17 00:26:40,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 00:26:40,793 INFO L93 Difference]: Finished difference Result 3946 states and 5571 transitions. [2024-11-17 00:26:40,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-11-17 00:26:40,794 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.3076923076923075) internal successors, (82), 13 states have internal predecessors, (82), 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 53 [2024-11-17 00:26:40,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 00:26:40,805 INFO L225 Difference]: With dead ends: 3946 [2024-11-17 00:26:40,805 INFO L226 Difference]: Without dead ends: 3946 [2024-11-17 00:26:40,805 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 96 SyntacticMatches, 5 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 238 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=240, Invalid=630, Unknown=0, NotChecked=0, Total=870 [2024-11-17 00:26:40,806 INFO L432 NwaCegarLoop]: 110 mSDtfsCounter, 363 mSDsluCounter, 737 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 363 SdHoareTripleChecker+Valid, 847 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-17 00:26:40,806 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [363 Valid, 847 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-17 00:26:40,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3946 states. [2024-11-17 00:26:40,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3946 to 3124. [2024-11-17 00:26:40,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3124 states, 3113 states have (on average 1.4734982332155477) internal successors, (4587), 3123 states have internal predecessors, (4587), 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) [2024-11-17 00:26:40,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3124 states to 3124 states and 4587 transitions. [2024-11-17 00:26:40,853 INFO L78 Accepts]: Start accepts. Automaton has 3124 states and 4587 transitions. Word has length 53 [2024-11-17 00:26:40,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 00:26:40,853 INFO L471 AbstractCegarLoop]: Abstraction has 3124 states and 4587 transitions. [2024-11-17 00:26:40,854 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.3076923076923075) internal successors, (82), 13 states have internal predecessors, (82), 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) [2024-11-17 00:26:40,854 INFO L276 IsEmpty]: Start isEmpty. Operand 3124 states and 4587 transitions. [2024-11-17 00:26:40,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-17 00:26:40,855 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 00:26:40,855 INFO L215 NwaCegarLoop]: trace histogram [7, 6, 6, 6, 5, 5, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 00:26:40,868 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-17 00:26:41,055 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 00:26:41,056 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 17 more)] === [2024-11-17 00:26:41,056 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 00:26:41,057 INFO L85 PathProgramCache]: Analyzing trace with hash 69116688, now seen corresponding path program 1 times [2024-11-17 00:26:41,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 00:26:41,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081724195] [2024-11-17 00:26:41,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 00:26:41,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 00:26:41,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:26:41,166 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 65 proven. 3 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2024-11-17 00:26:41,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 00:26:41,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1081724195] [2024-11-17 00:26:41,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1081724195] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 00:26:41,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2123230471] [2024-11-17 00:26:41,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 00:26:41,167 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 00:26:41,167 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 00:26:41,169 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) [2024-11-17 00:26:41,169 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-17 00:26:41,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:26:41,242 INFO L255 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-17 00:26:41,243 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 00:26:41,295 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 92 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-17 00:26:41,295 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 00:26:41,333 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 94 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-17 00:26:41,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2123230471] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-17 00:26:41,333 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-17 00:26:41,333 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7, 7] total 13 [2024-11-17 00:26:41,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556548103] [2024-11-17 00:26:41,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 00:26:41,334 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-17 00:26:41,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 00:26:41,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-17 00:26:41,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2024-11-17 00:26:41,334 INFO L87 Difference]: Start difference. First operand 3124 states and 4587 transitions. Second operand has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 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) [2024-11-17 00:26:41,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 00:26:41,411 INFO L93 Difference]: Finished difference Result 5182 states and 7470 transitions. [2024-11-17 00:26:41,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-17 00:26:41,411 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 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 61 [2024-11-17 00:26:41,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 00:26:41,424 INFO L225 Difference]: With dead ends: 5182 [2024-11-17 00:26:41,424 INFO L226 Difference]: Without dead ends: 5182 [2024-11-17 00:26:41,424 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 117 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2024-11-17 00:26:41,425 INFO L432 NwaCegarLoop]: 81 mSDtfsCounter, 130 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 293 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-17 00:26:41,425 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 293 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-17 00:26:41,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5182 states. [2024-11-17 00:26:41,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5182 to 5051. [2024-11-17 00:26:41,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5051 states, 5040 states have (on average 1.457142857142857) internal successors, (7344), 5050 states have internal predecessors, (7344), 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) [2024-11-17 00:26:41,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5051 states to 5051 states and 7344 transitions. [2024-11-17 00:26:41,505 INFO L78 Accepts]: Start accepts. Automaton has 5051 states and 7344 transitions. Word has length 61 [2024-11-17 00:26:41,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 00:26:41,505 INFO L471 AbstractCegarLoop]: Abstraction has 5051 states and 7344 transitions. [2024-11-17 00:26:41,505 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 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) [2024-11-17 00:26:41,506 INFO L276 IsEmpty]: Start isEmpty. Operand 5051 states and 7344 transitions. [2024-11-17 00:26:41,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-17 00:26:41,507 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 00:26:41,507 INFO L215 NwaCegarLoop]: trace histogram [7, 6, 6, 6, 5, 5, 4, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 00:26:41,519 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-17 00:26:41,710 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,SelfDestructingSolverStorable16 [2024-11-17 00:26:41,711 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 17 more)] === [2024-11-17 00:26:41,711 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 00:26:41,712 INFO L85 PathProgramCache]: Analyzing trace with hash 1839106254, now seen corresponding path program 1 times [2024-11-17 00:26:41,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 00:26:41,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889526770] [2024-11-17 00:26:41,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 00:26:41,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 00:26:41,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:26:41,830 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 68 proven. 4 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2024-11-17 00:26:41,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 00:26:41,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [889526770] [2024-11-17 00:26:41,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [889526770] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 00:26:41,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1399639124] [2024-11-17 00:26:41,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 00:26:41,830 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 00:26:41,831 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 00:26:41,832 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) [2024-11-17 00:26:41,833 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-17 00:26:41,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:26:41,915 INFO L255 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-17 00:26:41,917 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 00:26:41,981 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 101 proven. 9 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-17 00:26:41,981 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 00:26:42,038 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 103 proven. 7 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-17 00:26:42,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1399639124] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 00:26:42,038 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 00:26:42,038 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8, 8] total 14 [2024-11-17 00:26:42,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589081817] [2024-11-17 00:26:42,038 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 00:26:42,039 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-17 00:26:42,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 00:26:42,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-17 00:26:42,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2024-11-17 00:26:42,039 INFO L87 Difference]: Start difference. First operand 5051 states and 7344 transitions. Second operand has 14 states, 14 states have (on average 6.071428571428571) internal successors, (85), 14 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) [2024-11-17 00:26:42,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 00:26:42,455 INFO L93 Difference]: Finished difference Result 8797 states and 12478 transitions. [2024-11-17 00:26:42,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2024-11-17 00:26:42,456 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 6.071428571428571) internal successors, (85), 14 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 65 [2024-11-17 00:26:42,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 00:26:42,478 INFO L225 Difference]: With dead ends: 8797 [2024-11-17 00:26:42,478 INFO L226 Difference]: Without dead ends: 8797 [2024-11-17 00:26:42,479 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 123 SyntacticMatches, 2 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 431 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=405, Invalid=1317, Unknown=0, NotChecked=0, Total=1722 [2024-11-17 00:26:42,479 INFO L432 NwaCegarLoop]: 129 mSDtfsCounter, 276 mSDsluCounter, 835 mSDsCounter, 0 mSdLazyCounter, 225 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 276 SdHoareTripleChecker+Valid, 964 SdHoareTripleChecker+Invalid, 285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-17 00:26:42,479 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [276 Valid, 964 Invalid, 285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 225 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-17 00:26:42,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8797 states. [2024-11-17 00:26:42,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8797 to 5207. [2024-11-17 00:26:42,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5207 states, 5196 states have (on average 1.4420708237105466) internal successors, (7493), 5206 states have internal predecessors, (7493), 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) [2024-11-17 00:26:42,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5207 states to 5207 states and 7493 transitions. [2024-11-17 00:26:42,591 INFO L78 Accepts]: Start accepts. Automaton has 5207 states and 7493 transitions. Word has length 65 [2024-11-17 00:26:42,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 00:26:42,592 INFO L471 AbstractCegarLoop]: Abstraction has 5207 states and 7493 transitions. [2024-11-17 00:26:42,592 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 6.071428571428571) internal successors, (85), 14 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) [2024-11-17 00:26:42,592 INFO L276 IsEmpty]: Start isEmpty. Operand 5207 states and 7493 transitions. [2024-11-17 00:26:42,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-17 00:26:42,593 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 00:26:42,593 INFO L215 NwaCegarLoop]: trace histogram [7, 6, 6, 6, 5, 5, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 00:26:42,606 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-17 00:26:42,797 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-17 00:26:42,798 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 17 more)] === [2024-11-17 00:26:42,798 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 00:26:42,798 INFO L85 PathProgramCache]: Analyzing trace with hash -1542751695, now seen corresponding path program 1 times [2024-11-17 00:26:42,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 00:26:42,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2110216105] [2024-11-17 00:26:42,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 00:26:42,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 00:26:42,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:26:42,878 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 33 proven. 47 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-17 00:26:42,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 00:26:42,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2110216105] [2024-11-17 00:26:42,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2110216105] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 00:26:42,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1629870195] [2024-11-17 00:26:42,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 00:26:42,879 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 00:26:42,879 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 00:26:42,880 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 00:26:42,881 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-17 00:26:42,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:26:42,959 INFO L255 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-17 00:26:42,965 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 00:26:43,012 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 33 proven. 47 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-17 00:26:43,012 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 00:26:43,061 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 33 proven. 47 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-17 00:26:43,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1629870195] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 00:26:43,062 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 00:26:43,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 5 [2024-11-17 00:26:43,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623725096] [2024-11-17 00:26:43,062 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 00:26:43,062 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-17 00:26:43,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 00:26:43,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-17 00:26:43,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-17 00:26:43,063 INFO L87 Difference]: Start difference. First operand 5207 states and 7493 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 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) [2024-11-17 00:26:43,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 00:26:43,125 INFO L93 Difference]: Finished difference Result 5213 states and 7490 transitions. [2024-11-17 00:26:43,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-17 00:26:43,126 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 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 66 [2024-11-17 00:26:43,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 00:26:43,133 INFO L225 Difference]: With dead ends: 5213 [2024-11-17 00:26:43,133 INFO L226 Difference]: Without dead ends: 5213 [2024-11-17 00:26:43,134 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-17 00:26:43,134 INFO L432 NwaCegarLoop]: 97 mSDtfsCounter, 113 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 267 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-17 00:26:43,134 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 267 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-17 00:26:43,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5213 states. [2024-11-17 00:26:43,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5213 to 5205. [2024-11-17 00:26:43,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5205 states, 5194 states have (on average 1.4414709279938391) internal successors, (7487), 5204 states have internal predecessors, (7487), 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) [2024-11-17 00:26:43,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5205 states to 5205 states and 7487 transitions. [2024-11-17 00:26:43,201 INFO L78 Accepts]: Start accepts. Automaton has 5205 states and 7487 transitions. Word has length 66 [2024-11-17 00:26:43,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 00:26:43,201 INFO L471 AbstractCegarLoop]: Abstraction has 5205 states and 7487 transitions. [2024-11-17 00:26:43,201 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 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) [2024-11-17 00:26:43,201 INFO L276 IsEmpty]: Start isEmpty. Operand 5205 states and 7487 transitions. [2024-11-17 00:26:43,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-17 00:26:43,202 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 00:26:43,202 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 7, 5, 5, 4, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 00:26:43,215 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-17 00:26:43,403 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 00:26:43,403 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr19REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 17 more)] === [2024-11-17 00:26:43,403 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 00:26:43,403 INFO L85 PathProgramCache]: Analyzing trace with hash -1445751224, now seen corresponding path program 1 times [2024-11-17 00:26:43,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 00:26:43,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323545363] [2024-11-17 00:26:43,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 00:26:43,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 00:26:43,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:26:43,539 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 93 proven. 3 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2024-11-17 00:26:43,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 00:26:43,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323545363] [2024-11-17 00:26:43,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [323545363] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 00:26:43,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1653473537] [2024-11-17 00:26:43,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 00:26:43,540 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 00:26:43,541 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 00:26:43,542 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 00:26:43,543 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-17 00:26:43,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:26:43,628 INFO L255 TraceCheckSpWp]: Trace formula consists of 277 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-17 00:26:43,629 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 00:26:43,690 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 110 proven. 5 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-17 00:26:43,690 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 00:26:43,763 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 110 proven. 5 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-17 00:26:43,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1653473537] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 00:26:43,763 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 00:26:43,764 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2024-11-17 00:26:43,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673387113] [2024-11-17 00:26:43,764 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 00:26:43,764 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-17 00:26:43,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 00:26:43,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-17 00:26:43,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2024-11-17 00:26:43,765 INFO L87 Difference]: Start difference. First operand 5205 states and 7487 transitions. Second operand has 13 states, 13 states have (on average 6.461538461538462) internal successors, (84), 13 states have internal predecessors, (84), 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) [2024-11-17 00:26:44,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 00:26:44,071 INFO L93 Difference]: Finished difference Result 4508 states and 6076 transitions. [2024-11-17 00:26:44,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-11-17 00:26:44,071 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.461538461538462) internal successors, (84), 13 states have internal predecessors, (84), 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 67 [2024-11-17 00:26:44,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 00:26:44,078 INFO L225 Difference]: With dead ends: 4508 [2024-11-17 00:26:44,078 INFO L226 Difference]: Without dead ends: 4508 [2024-11-17 00:26:44,079 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 133 SyntacticMatches, 4 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 310 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=339, Invalid=1067, Unknown=0, NotChecked=0, Total=1406 [2024-11-17 00:26:44,079 INFO L432 NwaCegarLoop]: 157 mSDtfsCounter, 507 mSDsluCounter, 724 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 507 SdHoareTripleChecker+Valid, 881 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-17 00:26:44,080 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [507 Valid, 881 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-17 00:26:44,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4508 states. [2024-11-17 00:26:44,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4508 to 4011. [2024-11-17 00:26:44,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4011 states, 4000 states have (on average 1.37) internal successors, (5480), 4010 states have internal predecessors, (5480), 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) [2024-11-17 00:26:44,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4011 states to 4011 states and 5480 transitions. [2024-11-17 00:26:44,128 INFO L78 Accepts]: Start accepts. Automaton has 4011 states and 5480 transitions. Word has length 67 [2024-11-17 00:26:44,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 00:26:44,128 INFO L471 AbstractCegarLoop]: Abstraction has 4011 states and 5480 transitions. [2024-11-17 00:26:44,128 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.461538461538462) internal successors, (84), 13 states have internal predecessors, (84), 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) [2024-11-17 00:26:44,129 INFO L276 IsEmpty]: Start isEmpty. Operand 4011 states and 5480 transitions. [2024-11-17 00:26:44,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-17 00:26:44,130 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 00:26:44,130 INFO L215 NwaCegarLoop]: trace histogram [7, 6, 6, 6, 5, 5, 4, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 00:26:44,144 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-17 00:26:44,330 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 00:26:44,331 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 17 more)] === [2024-11-17 00:26:44,331 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 00:26:44,331 INFO L85 PathProgramCache]: Analyzing trace with hash -55416474, now seen corresponding path program 1 times [2024-11-17 00:26:44,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 00:26:44,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341676334] [2024-11-17 00:26:44,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 00:26:44,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 00:26:44,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:26:44,453 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 89 proven. 4 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-17 00:26:44,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 00:26:44,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341676334] [2024-11-17 00:26:44,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1341676334] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 00:26:44,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1304691648] [2024-11-17 00:26:44,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 00:26:44,454 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 00:26:44,454 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 00:26:44,455 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 00:26:44,456 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-17 00:26:44,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:26:44,538 INFO L255 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-17 00:26:44,539 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 00:26:44,583 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 95 proven. 15 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-17 00:26:44,583 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 00:26:44,624 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 97 proven. 13 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-17 00:26:44,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1304691648] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 00:26:44,625 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 00:26:44,625 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8, 8] total 11 [2024-11-17 00:26:44,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80550620] [2024-11-17 00:26:44,625 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 00:26:44,625 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-17 00:26:44,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 00:26:44,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-17 00:26:44,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-11-17 00:26:44,626 INFO L87 Difference]: Start difference. First operand 4011 states and 5480 transitions. Second operand has 11 states, 11 states have (on average 6.090909090909091) internal successors, (67), 11 states have internal predecessors, (67), 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) [2024-11-17 00:26:44,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 00:26:44,765 INFO L93 Difference]: Finished difference Result 3990 states and 5398 transitions. [2024-11-17 00:26:44,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-17 00:26:44,765 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.090909090909091) internal successors, (67), 11 states have internal predecessors, (67), 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 67 [2024-11-17 00:26:44,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 00:26:44,770 INFO L225 Difference]: With dead ends: 3990 [2024-11-17 00:26:44,770 INFO L226 Difference]: Without dead ends: 3990 [2024-11-17 00:26:44,770 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=92, Invalid=288, Unknown=0, NotChecked=0, Total=380 [2024-11-17 00:26:44,771 INFO L432 NwaCegarLoop]: 128 mSDtfsCounter, 159 mSDsluCounter, 632 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 760 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-17 00:26:44,771 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [159 Valid, 760 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-17 00:26:44,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3990 states. [2024-11-17 00:26:44,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3990 to 3562. [2024-11-17 00:26:44,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3562 states, 3551 states have (on average 1.3680653337088144) internal successors, (4858), 3561 states have internal predecessors, (4858), 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) [2024-11-17 00:26:44,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3562 states to 3562 states and 4858 transitions. [2024-11-17 00:26:44,803 INFO L78 Accepts]: Start accepts. Automaton has 3562 states and 4858 transitions. Word has length 67 [2024-11-17 00:26:44,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 00:26:44,804 INFO L471 AbstractCegarLoop]: Abstraction has 3562 states and 4858 transitions. [2024-11-17 00:26:44,804 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.090909090909091) internal successors, (67), 11 states have internal predecessors, (67), 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) [2024-11-17 00:26:44,804 INFO L276 IsEmpty]: Start isEmpty. Operand 3562 states and 4858 transitions. [2024-11-17 00:26:44,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-17 00:26:44,805 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 00:26:44,805 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 7, 5, 5, 4, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 00:26:44,818 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-17 00:26:45,008 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2024-11-17 00:26:45,009 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr19REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 17 more)] === [2024-11-17 00:26:45,009 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 00:26:45,009 INFO L85 PathProgramCache]: Analyzing trace with hash -1013767360, now seen corresponding path program 1 times [2024-11-17 00:26:45,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 00:26:45,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694828912] [2024-11-17 00:26:45,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 00:26:45,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 00:26:45,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:26:45,188 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 32 proven. 62 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2024-11-17 00:26:45,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 00:26:45,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694828912] [2024-11-17 00:26:45,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1694828912] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 00:26:45,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1433746180] [2024-11-17 00:26:45,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 00:26:45,189 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 00:26:45,189 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 00:26:45,190 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 00:26:45,191 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-17 00:26:45,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:26:45,283 INFO L255 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-17 00:26:45,285 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 00:26:45,330 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 8 treesize of output 1 [2024-11-17 00:26:45,481 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 32 proven. 62 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2024-11-17 00:26:45,482 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 00:26:45,682 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 32 proven. 62 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2024-11-17 00:26:45,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1433746180] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 00:26:45,682 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 00:26:45,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5, 5] total 9 [2024-11-17 00:26:45,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783181934] [2024-11-17 00:26:45,682 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 00:26:45,683 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-17 00:26:45,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 00:26:45,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-17 00:26:45,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-11-17 00:26:45,685 INFO L87 Difference]: Start difference. First operand 3562 states and 4858 transitions. Second operand has 10 states, 9 states have (on average 8.88888888888889) internal successors, (80), 10 states have internal predecessors, (80), 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) [2024-11-17 00:26:45,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 00:26:45,935 INFO L93 Difference]: Finished difference Result 6415 states and 8616 transitions. [2024-11-17 00:26:45,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-17 00:26:45,937 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 8.88888888888889) internal successors, (80), 10 states have internal predecessors, (80), 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 69 [2024-11-17 00:26:45,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 00:26:45,949 INFO L225 Difference]: With dead ends: 6415 [2024-11-17 00:26:45,949 INFO L226 Difference]: Without dead ends: 6415 [2024-11-17 00:26:45,950 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2024-11-17 00:26:45,950 INFO L432 NwaCegarLoop]: 110 mSDtfsCounter, 427 mSDsluCounter, 432 mSDsCounter, 0 mSdLazyCounter, 231 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 427 SdHoareTripleChecker+Valid, 542 SdHoareTripleChecker+Invalid, 243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-17 00:26:45,950 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [427 Valid, 542 Invalid, 243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 231 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-17 00:26:45,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6415 states. [2024-11-17 00:26:45,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6415 to 5228. [2024-11-17 00:26:46,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5228 states, 5217 states have (on average 1.3808702319340618) internal successors, (7204), 5227 states have internal predecessors, (7204), 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) [2024-11-17 00:26:46,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5228 states to 5228 states and 7204 transitions. [2024-11-17 00:26:46,006 INFO L78 Accepts]: Start accepts. Automaton has 5228 states and 7204 transitions. Word has length 69 [2024-11-17 00:26:46,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 00:26:46,007 INFO L471 AbstractCegarLoop]: Abstraction has 5228 states and 7204 transitions. [2024-11-17 00:26:46,007 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 8.88888888888889) internal successors, (80), 10 states have internal predecessors, (80), 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) [2024-11-17 00:26:46,007 INFO L276 IsEmpty]: Start isEmpty. Operand 5228 states and 7204 transitions. [2024-11-17 00:26:46,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-17 00:26:46,008 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 00:26:46,008 INFO L215 NwaCegarLoop]: trace histogram [7, 6, 6, 6, 5, 5, 4, 4, 4, 4, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 00:26:46,023 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-17 00:26:46,211 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-11-17 00:26:46,212 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 17 more)] === [2024-11-17 00:26:46,212 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 00:26:46,212 INFO L85 PathProgramCache]: Analyzing trace with hash -2048514219, now seen corresponding path program 1 times [2024-11-17 00:26:46,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 00:26:46,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773162415] [2024-11-17 00:26:46,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 00:26:46,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 00:26:46,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:26:46,353 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 82 proven. 2 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2024-11-17 00:26:46,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 00:26:46,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773162415] [2024-11-17 00:26:46,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [773162415] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 00:26:46,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1011374962] [2024-11-17 00:26:46,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 00:26:46,354 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 00:26:46,354 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 00:26:46,355 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 00:26:46,357 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-17 00:26:46,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:26:46,455 INFO L255 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-17 00:26:46,457 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 00:26:46,523 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 83 proven. 38 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-17 00:26:46,523 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 00:26:46,563 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 83 proven. 38 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-17 00:26:46,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1011374962] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 00:26:46,563 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 00:26:46,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 11 [2024-11-17 00:26:46,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056086831] [2024-11-17 00:26:46,564 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 00:26:46,564 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-17 00:26:46,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 00:26:46,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-17 00:26:46,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2024-11-17 00:26:46,565 INFO L87 Difference]: Start difference. First operand 5228 states and 7204 transitions. Second operand has 11 states, 11 states have (on average 6.909090909090909) internal successors, (76), 11 states have internal predecessors, (76), 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) [2024-11-17 00:26:46,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 00:26:46,728 INFO L93 Difference]: Finished difference Result 2899 states and 3907 transitions. [2024-11-17 00:26:46,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-17 00:26:46,728 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.909090909090909) internal successors, (76), 11 states have internal predecessors, (76), 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 73 [2024-11-17 00:26:46,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 00:26:46,732 INFO L225 Difference]: With dead ends: 2899 [2024-11-17 00:26:46,732 INFO L226 Difference]: Without dead ends: 2899 [2024-11-17 00:26:46,733 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=85, Invalid=377, Unknown=0, NotChecked=0, Total=462 [2024-11-17 00:26:46,733 INFO L432 NwaCegarLoop]: 178 mSDtfsCounter, 158 mSDsluCounter, 1364 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 1542 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-17 00:26:46,733 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [158 Valid, 1542 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-17 00:26:46,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2899 states. [2024-11-17 00:26:46,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2899 to 2835. [2024-11-17 00:26:46,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2835 states, 2824 states have (on average 1.3679178470254958) internal successors, (3863), 2834 states have internal predecessors, (3863), 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) [2024-11-17 00:26:46,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2835 states to 2835 states and 3863 transitions. [2024-11-17 00:26:46,764 INFO L78 Accepts]: Start accepts. Automaton has 2835 states and 3863 transitions. Word has length 73 [2024-11-17 00:26:46,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 00:26:46,764 INFO L471 AbstractCegarLoop]: Abstraction has 2835 states and 3863 transitions. [2024-11-17 00:26:46,764 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.909090909090909) internal successors, (76), 11 states have internal predecessors, (76), 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) [2024-11-17 00:26:46,764 INFO L276 IsEmpty]: Start isEmpty. Operand 2835 states and 3863 transitions. [2024-11-17 00:26:46,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-17 00:26:46,765 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 00:26:46,765 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 10, 6, 5, 5, 5, 4, 4, 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] [2024-11-17 00:26:46,779 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-17 00:26:46,969 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 00:26:46,969 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 17 more)] === [2024-11-17 00:26:46,970 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 00:26:46,970 INFO L85 PathProgramCache]: Analyzing trace with hash -2113097724, now seen corresponding path program 1 times [2024-11-17 00:26:46,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 00:26:46,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455791409] [2024-11-17 00:26:46,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 00:26:46,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 00:26:46,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:26:47,076 INFO L134 CoverageAnalysis]: Checked inductivity of 283 backedges. 148 proven. 2 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2024-11-17 00:26:47,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 00:26:47,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455791409] [2024-11-17 00:26:47,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [455791409] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 00:26:47,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [661090054] [2024-11-17 00:26:47,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 00:26:47,077 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 00:26:47,078 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 00:26:47,079 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 00:26:47,080 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-17 00:26:47,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:26:47,178 INFO L255 TraceCheckSpWp]: Trace formula consists of 344 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-17 00:26:47,180 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 00:26:47,272 INFO L134 CoverageAnalysis]: Checked inductivity of 283 backedges. 117 proven. 57 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2024-11-17 00:26:47,272 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 00:26:47,331 INFO L134 CoverageAnalysis]: Checked inductivity of 283 backedges. 117 proven. 57 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2024-11-17 00:26:47,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [661090054] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 00:26:47,332 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 00:26:47,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 12 [2024-11-17 00:26:47,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648079585] [2024-11-17 00:26:47,332 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 00:26:47,332 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-17 00:26:47,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 00:26:47,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-17 00:26:47,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2024-11-17 00:26:47,333 INFO L87 Difference]: Start difference. First operand 2835 states and 3863 transitions. Second operand has 12 states, 12 states have (on average 7.666666666666667) internal successors, (92), 12 states have internal predecessors, (92), 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) [2024-11-17 00:26:47,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 00:26:47,527 INFO L93 Difference]: Finished difference Result 5833 states and 7610 transitions. [2024-11-17 00:26:47,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-17 00:26:47,527 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.666666666666667) internal successors, (92), 12 states have internal predecessors, (92), 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 93 [2024-11-17 00:26:47,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 00:26:47,535 INFO L225 Difference]: With dead ends: 5833 [2024-11-17 00:26:47,535 INFO L226 Difference]: Without dead ends: 5833 [2024-11-17 00:26:47,536 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 211 GetRequests, 186 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=168, Invalid=534, Unknown=0, NotChecked=0, Total=702 [2024-11-17 00:26:47,536 INFO L432 NwaCegarLoop]: 116 mSDtfsCounter, 176 mSDsluCounter, 818 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 934 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-17 00:26:47,537 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [176 Valid, 934 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-17 00:26:47,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5833 states. [2024-11-17 00:26:47,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5833 to 5209. [2024-11-17 00:26:47,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5209 states, 5198 states have (on average 1.3047325894574837) internal successors, (6782), 5208 states have internal predecessors, (6782), 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) [2024-11-17 00:26:47,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5209 states to 5209 states and 6782 transitions. [2024-11-17 00:26:47,593 INFO L78 Accepts]: Start accepts. Automaton has 5209 states and 6782 transitions. Word has length 93 [2024-11-17 00:26:47,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 00:26:47,593 INFO L471 AbstractCegarLoop]: Abstraction has 5209 states and 6782 transitions. [2024-11-17 00:26:47,593 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.666666666666667) internal successors, (92), 12 states have internal predecessors, (92), 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) [2024-11-17 00:26:47,593 INFO L276 IsEmpty]: Start isEmpty. Operand 5209 states and 6782 transitions. [2024-11-17 00:26:47,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-17 00:26:47,595 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 00:26:47,595 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 11, 7, 6, 5, 5, 5, 4, 3, 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] [2024-11-17 00:26:47,609 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2024-11-17 00:26:47,795 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 00:26:47,795 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 17 more)] === [2024-11-17 00:26:47,796 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 00:26:47,796 INFO L85 PathProgramCache]: Analyzing trace with hash 1765780801, now seen corresponding path program 1 times [2024-11-17 00:26:47,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 00:26:47,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597179672] [2024-11-17 00:26:47,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 00:26:47,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 00:26:47,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:26:47,903 INFO L134 CoverageAnalysis]: Checked inductivity of 345 backedges. 156 proven. 1 refuted. 0 times theorem prover too weak. 188 trivial. 0 not checked. [2024-11-17 00:26:47,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 00:26:47,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1597179672] [2024-11-17 00:26:47,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1597179672] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 00:26:47,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1732258169] [2024-11-17 00:26:47,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 00:26:47,904 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 00:26:47,904 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 00:26:47,906 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 00:26:47,907 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-17 00:26:48,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:26:48,013 INFO L255 TraceCheckSpWp]: Trace formula consists of 374 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-17 00:26:48,014 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 00:26:48,111 INFO L134 CoverageAnalysis]: Checked inductivity of 345 backedges. 244 proven. 4 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2024-11-17 00:26:48,112 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 00:26:48,222 INFO L134 CoverageAnalysis]: Checked inductivity of 345 backedges. 244 proven. 4 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2024-11-17 00:26:48,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1732258169] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 00:26:48,222 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 00:26:48,222 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7, 7] total 13 [2024-11-17 00:26:48,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46444965] [2024-11-17 00:26:48,223 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 00:26:48,223 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-17 00:26:48,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 00:26:48,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-17 00:26:48,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2024-11-17 00:26:48,224 INFO L87 Difference]: Start difference. First operand 5209 states and 6782 transitions. Second operand has 13 states, 13 states have (on average 11.923076923076923) internal successors, (155), 13 states have internal predecessors, (155), 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) [2024-11-17 00:26:48,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 00:26:48,315 INFO L93 Difference]: Finished difference Result 4611 states and 5714 transitions. [2024-11-17 00:26:48,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-17 00:26:48,316 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 11.923076923076923) internal successors, (155), 13 states have internal predecessors, (155), 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 103 [2024-11-17 00:26:48,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 00:26:48,321 INFO L225 Difference]: With dead ends: 4611 [2024-11-17 00:26:48,321 INFO L226 Difference]: Without dead ends: 4611 [2024-11-17 00:26:48,321 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 199 SyntacticMatches, 2 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=146, Invalid=234, Unknown=0, NotChecked=0, Total=380 [2024-11-17 00:26:48,322 INFO L432 NwaCegarLoop]: 168 mSDtfsCounter, 249 mSDsluCounter, 387 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 555 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-17 00:26:48,322 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [249 Valid, 555 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-17 00:26:48,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4611 states. [2024-11-17 00:26:48,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4611 to 3950. [2024-11-17 00:26:48,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3950 states, 3940 states have (on average 1.2619289340101523) internal successors, (4972), 3949 states have internal predecessors, (4972), 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) [2024-11-17 00:26:48,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3950 states to 3950 states and 4972 transitions. [2024-11-17 00:26:48,353 INFO L78 Accepts]: Start accepts. Automaton has 3950 states and 4972 transitions. Word has length 103 [2024-11-17 00:26:48,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 00:26:48,353 INFO L471 AbstractCegarLoop]: Abstraction has 3950 states and 4972 transitions. [2024-11-17 00:26:48,353 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 11.923076923076923) internal successors, (155), 13 states have internal predecessors, (155), 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) [2024-11-17 00:26:48,353 INFO L276 IsEmpty]: Start isEmpty. Operand 3950 states and 4972 transitions. [2024-11-17 00:26:48,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-17 00:26:48,355 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 00:26:48,355 INFO L215 NwaCegarLoop]: trace histogram [12, 11, 10, 6, 6, 5, 5, 5, 4, 4, 3, 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, 1, 1, 1, 1] [2024-11-17 00:26:48,369 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-11-17 00:26:48,555 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-11-17 00:26:48,556 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 17 more)] === [2024-11-17 00:26:48,556 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 00:26:48,556 INFO L85 PathProgramCache]: Analyzing trace with hash -1974537592, now seen corresponding path program 1 times [2024-11-17 00:26:48,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 00:26:48,556 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799567454] [2024-11-17 00:26:48,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 00:26:48,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 00:26:48,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:26:48,724 INFO L134 CoverageAnalysis]: Checked inductivity of 331 backedges. 65 proven. 176 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2024-11-17 00:26:48,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 00:26:48,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799567454] [2024-11-17 00:26:48,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [799567454] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 00:26:48,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [50868171] [2024-11-17 00:26:48,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 00:26:48,725 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 00:26:48,725 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 00:26:48,727 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 00:26:48,730 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-17 00:26:48,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:26:48,844 INFO L255 TraceCheckSpWp]: Trace formula consists of 383 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-17 00:26:48,845 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 00:26:48,916 INFO L134 CoverageAnalysis]: Checked inductivity of 331 backedges. 146 proven. 0 refuted. 0 times theorem prover too weak. 185 trivial. 0 not checked. [2024-11-17 00:26:48,916 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-17 00:26:48,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [50868171] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 00:26:48,916 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-17 00:26:48,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 10 [2024-11-17 00:26:48,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44204022] [2024-11-17 00:26:48,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 00:26:48,918 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-17 00:26:48,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 00:26:48,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 00:26:48,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-17 00:26:48,919 INFO L87 Difference]: Start difference. First operand 3950 states and 4972 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 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) [2024-11-17 00:26:48,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 00:26:48,938 INFO L93 Difference]: Finished difference Result 4247 states and 5241 transitions. [2024-11-17 00:26:48,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 00:26:48,938 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 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 108 [2024-11-17 00:26:48,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 00:26:48,943 INFO L225 Difference]: With dead ends: 4247 [2024-11-17 00:26:48,943 INFO L226 Difference]: Without dead ends: 4247 [2024-11-17 00:26:48,943 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-17 00:26:48,944 INFO L432 NwaCegarLoop]: 92 mSDtfsCounter, 53 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-17 00:26:48,945 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 140 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-17 00:26:48,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4247 states. [2024-11-17 00:26:48,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4247 to 3950. [2024-11-17 00:26:48,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3950 states, 3940 states have (on average 1.2446700507614212) internal successors, (4904), 3949 states have internal predecessors, (4904), 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) [2024-11-17 00:26:48,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3950 states to 3950 states and 4904 transitions. [2024-11-17 00:26:48,977 INFO L78 Accepts]: Start accepts. Automaton has 3950 states and 4904 transitions. Word has length 108 [2024-11-17 00:26:48,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 00:26:48,977 INFO L471 AbstractCegarLoop]: Abstraction has 3950 states and 4904 transitions. [2024-11-17 00:26:48,977 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 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) [2024-11-17 00:26:48,977 INFO L276 IsEmpty]: Start isEmpty. Operand 3950 states and 4904 transitions. [2024-11-17 00:26:48,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-17 00:26:48,979 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 00:26:48,979 INFO L215 NwaCegarLoop]: trace histogram [12, 11, 10, 6, 6, 5, 5, 5, 4, 4, 3, 3, 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, 1, 1, 1] [2024-11-17 00:26:48,993 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-11-17 00:26:49,179 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-11-17 00:26:49,180 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 17 more)] === [2024-11-17 00:26:49,180 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 00:26:49,180 INFO L85 PathProgramCache]: Analyzing trace with hash -1965668306, now seen corresponding path program 1 times [2024-11-17 00:26:49,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 00:26:49,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [493412190] [2024-11-17 00:26:49,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 00:26:49,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 00:26:49,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:26:49,300 INFO L134 CoverageAnalysis]: Checked inductivity of 334 backedges. 94 proven. 3 refuted. 0 times theorem prover too weak. 237 trivial. 0 not checked. [2024-11-17 00:26:49,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 00:26:49,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [493412190] [2024-11-17 00:26:49,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [493412190] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 00:26:49,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [523132095] [2024-11-17 00:26:49,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 00:26:49,300 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 00:26:49,301 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 00:26:49,303 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 00:26:49,304 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-17 00:26:49,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:26:49,413 INFO L255 TraceCheckSpWp]: Trace formula consists of 384 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-17 00:26:49,414 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 00:26:49,525 INFO L134 CoverageAnalysis]: Checked inductivity of 334 backedges. 190 proven. 10 refuted. 0 times theorem prover too weak. 134 trivial. 0 not checked. [2024-11-17 00:26:49,526 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 00:26:49,631 INFO L134 CoverageAnalysis]: Checked inductivity of 334 backedges. 190 proven. 10 refuted. 0 times theorem prover too weak. 134 trivial. 0 not checked. [2024-11-17 00:26:49,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [523132095] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 00:26:49,631 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 00:26:49,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8, 8] total 12 [2024-11-17 00:26:49,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18236487] [2024-11-17 00:26:49,631 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 00:26:49,632 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-17 00:26:49,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 00:26:49,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-17 00:26:49,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2024-11-17 00:26:49,632 INFO L87 Difference]: Start difference. First operand 3950 states and 4904 transitions. Second operand has 12 states, 12 states have (on average 9.666666666666666) internal successors, (116), 12 states have internal predecessors, (116), 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) [2024-11-17 00:26:49,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 00:26:49,756 INFO L93 Difference]: Finished difference Result 3110 states and 3656 transitions. [2024-11-17 00:26:49,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-17 00:26:49,756 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.666666666666666) internal successors, (116), 12 states have internal predecessors, (116), 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 110 [2024-11-17 00:26:49,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 00:26:49,760 INFO L225 Difference]: With dead ends: 3110 [2024-11-17 00:26:49,761 INFO L226 Difference]: Without dead ends: 3110 [2024-11-17 00:26:49,761 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 236 GetRequests, 213 SyntacticMatches, 5 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=125, Invalid=255, Unknown=0, NotChecked=0, Total=380 [2024-11-17 00:26:49,762 INFO L432 NwaCegarLoop]: 167 mSDtfsCounter, 147 mSDsluCounter, 646 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 813 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-17 00:26:49,762 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 813 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-17 00:26:49,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3110 states. [2024-11-17 00:26:49,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3110 to 2424. [2024-11-17 00:26:49,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2424 states, 2414 states have (on average 1.1872410936205469) internal successors, (2866), 2423 states have internal predecessors, (2866), 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) [2024-11-17 00:26:49,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2424 states to 2424 states and 2866 transitions. [2024-11-17 00:26:49,785 INFO L78 Accepts]: Start accepts. Automaton has 2424 states and 2866 transitions. Word has length 110 [2024-11-17 00:26:49,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 00:26:49,785 INFO L471 AbstractCegarLoop]: Abstraction has 2424 states and 2866 transitions. [2024-11-17 00:26:49,785 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.666666666666666) internal successors, (116), 12 states have internal predecessors, (116), 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) [2024-11-17 00:26:49,785 INFO L276 IsEmpty]: Start isEmpty. Operand 2424 states and 2866 transitions. [2024-11-17 00:26:49,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-17 00:26:49,786 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 00:26:49,787 INFO L215 NwaCegarLoop]: trace histogram [12, 11, 10, 6, 6, 5, 5, 5, 4, 4, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 00:26:49,800 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2024-11-17 00:26:49,987 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-11-17 00:26:49,987 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 17 more)] === [2024-11-17 00:26:49,988 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 00:26:49,988 INFO L85 PathProgramCache]: Analyzing trace with hash 1070284642, now seen corresponding path program 1 times [2024-11-17 00:26:49,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 00:26:49,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542091027] [2024-11-17 00:26:49,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 00:26:49,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 00:26:50,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:26:50,147 INFO L134 CoverageAnalysis]: Checked inductivity of 333 backedges. 78 proven. 188 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2024-11-17 00:26:50,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 00:26:50,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542091027] [2024-11-17 00:26:50,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [542091027] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 00:26:50,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [994109113] [2024-11-17 00:26:50,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 00:26:50,148 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 00:26:50,148 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 00:26:50,149 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 00:26:50,151 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-17 00:26:50,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:26:50,270 INFO L255 TraceCheckSpWp]: Trace formula consists of 407 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-17 00:26:50,271 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 00:26:50,278 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 8 treesize of output 1 [2024-11-17 00:26:50,543 INFO L134 CoverageAnalysis]: Checked inductivity of 333 backedges. 48 proven. 188 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2024-11-17 00:26:50,543 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 00:26:50,891 INFO L134 CoverageAnalysis]: Checked inductivity of 333 backedges. 48 proven. 188 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2024-11-17 00:26:50,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [994109113] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 00:26:50,891 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 00:26:50,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 14 [2024-11-17 00:26:50,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078111874] [2024-11-17 00:26:50,891 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 00:26:50,892 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-17 00:26:50,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 00:26:50,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-17 00:26:50,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2024-11-17 00:26:50,892 INFO L87 Difference]: Start difference. First operand 2424 states and 2866 transitions. Second operand has 15 states, 14 states have (on average 13.071428571428571) internal successors, (183), 15 states have internal predecessors, (183), 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) [2024-11-17 00:26:51,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 00:26:51,512 INFO L93 Difference]: Finished difference Result 7151 states and 8396 transitions. [2024-11-17 00:26:51,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-17 00:26:51,512 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 13.071428571428571) internal successors, (183), 15 states have internal predecessors, (183), 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 112 [2024-11-17 00:26:51,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 00:26:51,518 INFO L225 Difference]: With dead ends: 7151 [2024-11-17 00:26:51,518 INFO L226 Difference]: Without dead ends: 7151 [2024-11-17 00:26:51,519 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 280 GetRequests, 241 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 357 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=429, Invalid=1211, Unknown=0, NotChecked=0, Total=1640 [2024-11-17 00:26:51,519 INFO L432 NwaCegarLoop]: 108 mSDtfsCounter, 2426 mSDsluCounter, 696 mSDsCounter, 0 mSdLazyCounter, 487 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2426 SdHoareTripleChecker+Valid, 804 SdHoareTripleChecker+Invalid, 560 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 487 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-17 00:26:51,519 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2426 Valid, 804 Invalid, 560 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 487 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-17 00:26:51,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7151 states. [2024-11-17 00:26:51,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7151 to 2543. [2024-11-17 00:26:51,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2543 states, 2533 states have (on average 1.1926569285432294) internal successors, (3021), 2542 states have internal predecessors, (3021), 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) [2024-11-17 00:26:51,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2543 states to 2543 states and 3021 transitions. [2024-11-17 00:26:51,553 INFO L78 Accepts]: Start accepts. Automaton has 2543 states and 3021 transitions. Word has length 112 [2024-11-17 00:26:51,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 00:26:51,553 INFO L471 AbstractCegarLoop]: Abstraction has 2543 states and 3021 transitions. [2024-11-17 00:26:51,553 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 13.071428571428571) internal successors, (183), 15 states have internal predecessors, (183), 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) [2024-11-17 00:26:51,553 INFO L276 IsEmpty]: Start isEmpty. Operand 2543 states and 3021 transitions. [2024-11-17 00:26:51,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-17 00:26:51,554 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 00:26:51,555 INFO L215 NwaCegarLoop]: trace histogram [12, 11, 10, 6, 6, 5, 5, 5, 4, 4, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 00:26:51,568 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2024-11-17 00:26:51,755 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 00:26:51,755 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 17 more)] === [2024-11-17 00:26:51,755 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 00:26:51,756 INFO L85 PathProgramCache]: Analyzing trace with hash 1070284641, now seen corresponding path program 1 times [2024-11-17 00:26:51,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 00:26:51,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799204146] [2024-11-17 00:26:51,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 00:26:51,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 00:26:51,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:26:51,882 INFO L134 CoverageAnalysis]: Checked inductivity of 333 backedges. 48 proven. 188 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2024-11-17 00:26:51,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 00:26:51,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1799204146] [2024-11-17 00:26:51,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1799204146] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 00:26:51,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1618153360] [2024-11-17 00:26:51,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 00:26:51,883 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 00:26:51,883 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 00:26:51,885 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 00:26:51,886 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-17 00:26:51,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:26:52,001 INFO L255 TraceCheckSpWp]: Trace formula consists of 407 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-17 00:26:52,002 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 00:26:52,085 INFO L134 CoverageAnalysis]: Checked inductivity of 333 backedges. 48 proven. 188 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2024-11-17 00:26:52,085 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 00:26:52,181 INFO L134 CoverageAnalysis]: Checked inductivity of 333 backedges. 48 proven. 188 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2024-11-17 00:26:52,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1618153360] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 00:26:52,181 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 00:26:52,181 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 5 [2024-11-17 00:26:52,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326388861] [2024-11-17 00:26:52,181 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 00:26:52,182 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-17 00:26:52,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 00:26:52,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-17 00:26:52,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-17 00:26:52,182 INFO L87 Difference]: Start difference. First operand 2543 states and 3021 transitions. Second operand has 6 states, 5 states have (on average 13.2) internal successors, (66), 6 states have internal predecessors, (66), 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) [2024-11-17 00:26:52,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 00:26:52,375 INFO L93 Difference]: Finished difference Result 3501 states and 4111 transitions. [2024-11-17 00:26:52,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-17 00:26:52,376 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 13.2) internal successors, (66), 6 states have internal predecessors, (66), 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 112 [2024-11-17 00:26:52,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 00:26:52,379 INFO L225 Difference]: With dead ends: 3501 [2024-11-17 00:26:52,379 INFO L226 Difference]: Without dead ends: 3501 [2024-11-17 00:26:52,379 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 241 GetRequests, 230 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-17 00:26:52,380 INFO L432 NwaCegarLoop]: 120 mSDtfsCounter, 334 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 334 SdHoareTripleChecker+Valid, 420 SdHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-17 00:26:52,380 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [334 Valid, 420 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 236 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-17 00:26:52,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3501 states. [2024-11-17 00:26:52,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3501 to 2542. [2024-11-17 00:26:52,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2542 states, 2533 states have (on average 1.1914725621792341) internal successors, (3018), 2541 states have internal predecessors, (3018), 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) [2024-11-17 00:26:52,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2542 states to 2542 states and 3018 transitions. [2024-11-17 00:26:52,398 INFO L78 Accepts]: Start accepts. Automaton has 2542 states and 3018 transitions. Word has length 112 [2024-11-17 00:26:52,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 00:26:52,399 INFO L471 AbstractCegarLoop]: Abstraction has 2542 states and 3018 transitions. [2024-11-17 00:26:52,399 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.2) internal successors, (66), 6 states have internal predecessors, (66), 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) [2024-11-17 00:26:52,399 INFO L276 IsEmpty]: Start isEmpty. Operand 2542 states and 3018 transitions. [2024-11-17 00:26:52,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-17 00:26:52,400 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 00:26:52,400 INFO L215 NwaCegarLoop]: trace histogram [12, 11, 10, 6, 6, 5, 5, 5, 4, 4, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 00:26:52,418 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2024-11-17 00:26:52,600 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-11-17 00:26:52,601 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 17 more)] === [2024-11-17 00:26:52,601 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 00:26:52,601 INFO L85 PathProgramCache]: Analyzing trace with hash 2046316951, now seen corresponding path program 1 times [2024-11-17 00:26:52,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 00:26:52,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175340300] [2024-11-17 00:26:52,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 00:26:52,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 00:26:52,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:26:52,770 INFO L134 CoverageAnalysis]: Checked inductivity of 333 backedges. 28 proven. 213 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2024-11-17 00:26:52,770 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 00:26:52,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1175340300] [2024-11-17 00:26:52,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1175340300] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 00:26:52,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1537792144] [2024-11-17 00:26:52,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 00:26:52,771 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 00:26:52,771 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 00:26:52,774 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 00:26:52,775 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-11-17 00:26:52,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:26:52,893 INFO L255 TraceCheckSpWp]: Trace formula consists of 413 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-17 00:26:52,895 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 00:26:53,038 INFO L134 CoverageAnalysis]: Checked inductivity of 333 backedges. 133 proven. 12 refuted. 0 times theorem prover too weak. 188 trivial. 0 not checked. [2024-11-17 00:26:53,038 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 00:26:53,159 INFO L134 CoverageAnalysis]: Checked inductivity of 333 backedges. 133 proven. 12 refuted. 0 times theorem prover too weak. 188 trivial. 0 not checked. [2024-11-17 00:26:53,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1537792144] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 00:26:53,159 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 00:26:53,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5, 5] total 15 [2024-11-17 00:26:53,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986133730] [2024-11-17 00:26:53,160 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 00:26:53,160 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-17 00:26:53,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 00:26:53,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-17 00:26:53,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2024-11-17 00:26:53,161 INFO L87 Difference]: Start difference. First operand 2542 states and 3018 transitions. Second operand has 15 states, 15 states have (on average 9.133333333333333) internal successors, (137), 15 states have internal predecessors, (137), 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) [2024-11-17 00:26:55,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 00:26:55,368 INFO L93 Difference]: Finished difference Result 11706 states and 13562 transitions. [2024-11-17 00:26:55,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 117 states. [2024-11-17 00:26:55,369 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 9.133333333333333) internal successors, (137), 15 states have internal predecessors, (137), 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 114 [2024-11-17 00:26:55,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 00:26:55,379 INFO L225 Difference]: With dead ends: 11706 [2024-11-17 00:26:55,379 INFO L226 Difference]: Without dead ends: 11562 [2024-11-17 00:26:55,382 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 404 GetRequests, 283 SyntacticMatches, 0 SemanticMatches, 121 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5365 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=2780, Invalid=12226, Unknown=0, NotChecked=0, Total=15006 [2024-11-17 00:26:55,382 INFO L432 NwaCegarLoop]: 268 mSDtfsCounter, 850 mSDsluCounter, 2669 mSDsCounter, 0 mSdLazyCounter, 1485 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 850 SdHoareTripleChecker+Valid, 2937 SdHoareTripleChecker+Invalid, 1494 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1485 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-17 00:26:55,382 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [850 Valid, 2937 Invalid, 1494 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1485 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-17 00:26:55,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11562 states. [2024-11-17 00:26:55,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11562 to 3272. [2024-11-17 00:26:55,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3272 states, 3263 states have (on average 1.1771376034324241) internal successors, (3841), 3271 states have internal predecessors, (3841), 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) [2024-11-17 00:26:55,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3272 states to 3272 states and 3841 transitions. [2024-11-17 00:26:55,420 INFO L78 Accepts]: Start accepts. Automaton has 3272 states and 3841 transitions. Word has length 114 [2024-11-17 00:26:55,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 00:26:55,421 INFO L471 AbstractCegarLoop]: Abstraction has 3272 states and 3841 transitions. [2024-11-17 00:26:55,421 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 9.133333333333333) internal successors, (137), 15 states have internal predecessors, (137), 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) [2024-11-17 00:26:55,421 INFO L276 IsEmpty]: Start isEmpty. Operand 3272 states and 3841 transitions. [2024-11-17 00:26:55,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-17 00:26:55,422 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 00:26:55,422 INFO L215 NwaCegarLoop]: trace histogram [12, 11, 10, 6, 6, 5, 5, 5, 4, 4, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 00:26:55,436 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2024-11-17 00:26:55,623 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 00:26:55,623 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 17 more)] === [2024-11-17 00:26:55,623 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 00:26:55,624 INFO L85 PathProgramCache]: Analyzing trace with hash -987482420, now seen corresponding path program 1 times [2024-11-17 00:26:55,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 00:26:55,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020150764] [2024-11-17 00:26:55,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 00:26:55,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 00:26:55,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:26:55,742 INFO L134 CoverageAnalysis]: Checked inductivity of 333 backedges. 48 proven. 188 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2024-11-17 00:26:55,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 00:26:55,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020150764] [2024-11-17 00:26:55,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1020150764] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 00:26:55,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1181708421] [2024-11-17 00:26:55,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 00:26:55,743 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 00:26:55,743 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 00:26:55,744 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 00:26:55,745 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-11-17 00:26:55,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:26:55,868 INFO L255 TraceCheckSpWp]: Trace formula consists of 421 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-17 00:26:55,870 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 00:26:55,974 INFO L134 CoverageAnalysis]: Checked inductivity of 333 backedges. 48 proven. 188 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2024-11-17 00:26:55,974 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 00:26:56,097 INFO L134 CoverageAnalysis]: Checked inductivity of 333 backedges. 48 proven. 188 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2024-11-17 00:26:56,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1181708421] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 00:26:56,097 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 00:26:56,097 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 5 [2024-11-17 00:26:56,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276132101] [2024-11-17 00:26:56,097 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 00:26:56,098 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-17 00:26:56,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 00:26:56,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-17 00:26:56,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-17 00:26:56,098 INFO L87 Difference]: Start difference. First operand 3272 states and 3841 transitions. Second operand has 6 states, 5 states have (on average 13.8) internal successors, (69), 6 states have internal predecessors, (69), 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) [2024-11-17 00:26:56,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 00:26:56,258 INFO L93 Difference]: Finished difference Result 6578 states and 7689 transitions. [2024-11-17 00:26:56,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-17 00:26:56,258 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 13.8) internal successors, (69), 6 states have internal predecessors, (69), 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 115 [2024-11-17 00:26:56,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 00:26:56,265 INFO L225 Difference]: With dead ends: 6578 [2024-11-17 00:26:56,265 INFO L226 Difference]: Without dead ends: 6578 [2024-11-17 00:26:56,265 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 247 GetRequests, 232 SyntacticMatches, 4 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-17 00:26:56,265 INFO L432 NwaCegarLoop]: 51 mSDtfsCounter, 553 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 553 SdHoareTripleChecker+Valid, 273 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-17 00:26:56,265 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [553 Valid, 273 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-17 00:26:56,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6578 states. [2024-11-17 00:26:56,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6578 to 3273. [2024-11-17 00:26:56,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3273 states, 3264 states have (on average 1.1770833333333333) internal successors, (3842), 3272 states have internal predecessors, (3842), 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) [2024-11-17 00:26:56,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3273 states to 3273 states and 3842 transitions. [2024-11-17 00:26:56,314 INFO L78 Accepts]: Start accepts. Automaton has 3273 states and 3842 transitions. Word has length 115 [2024-11-17 00:26:56,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 00:26:56,314 INFO L471 AbstractCegarLoop]: Abstraction has 3273 states and 3842 transitions. [2024-11-17 00:26:56,314 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.8) internal successors, (69), 6 states have internal predecessors, (69), 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) [2024-11-17 00:26:56,314 INFO L276 IsEmpty]: Start isEmpty. Operand 3273 states and 3842 transitions. [2024-11-17 00:26:56,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-17 00:26:56,318 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 00:26:56,318 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 12, 8, 7, 6, 5, 5, 4, 4, 3, 2, 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] [2024-11-17 00:26:56,331 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2024-11-17 00:26:56,518 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 00:26:56,519 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 17 more)] === [2024-11-17 00:26:56,519 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 00:26:56,519 INFO L85 PathProgramCache]: Analyzing trace with hash -2070650843, now seen corresponding path program 1 times [2024-11-17 00:26:56,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 00:26:56,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502388233] [2024-11-17 00:26:56,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 00:26:56,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 00:26:56,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:26:57,034 INFO L134 CoverageAnalysis]: Checked inductivity of 415 backedges. 84 proven. 313 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-17 00:26:57,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 00:26:57,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502388233] [2024-11-17 00:26:57,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1502388233] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 00:26:57,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1579340669] [2024-11-17 00:26:57,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 00:26:57,035 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 00:26:57,035 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 00:26:57,037 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 00:26:57,038 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-11-17 00:26:57,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:26:57,168 INFO L255 TraceCheckSpWp]: Trace formula consists of 426 conjuncts, 41 conjuncts are in the unsatisfiable core [2024-11-17 00:26:57,170 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 00:26:57,246 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 [2024-11-17 00:26:57,249 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 [2024-11-17 00:26:57,479 INFO L134 CoverageAnalysis]: Checked inductivity of 415 backedges. 70 proven. 291 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2024-11-17 00:26:57,479 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 00:26:57,733 INFO L134 CoverageAnalysis]: Checked inductivity of 415 backedges. 70 proven. 291 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2024-11-17 00:26:57,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1579340669] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 00:26:57,734 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 00:26:57,734 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9, 9] total 17 [2024-11-17 00:26:57,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712570307] [2024-11-17 00:26:57,734 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 00:26:57,734 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-17 00:26:57,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 00:26:57,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-17 00:26:57,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2024-11-17 00:26:57,735 INFO L87 Difference]: Start difference. First operand 3273 states and 3842 transitions. Second operand has 18 states, 18 states have (on average 9.444444444444445) internal successors, (170), 17 states have internal predecessors, (170), 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) [2024-11-17 00:26:59,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 00:26:59,901 INFO L93 Difference]: Finished difference Result 17515 states and 20201 transitions. [2024-11-17 00:26:59,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 92 states. [2024-11-17 00:26:59,902 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 9.444444444444445) internal successors, (170), 17 states have internal predecessors, (170), 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 117 [2024-11-17 00:26:59,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 00:26:59,919 INFO L225 Difference]: With dead ends: 17515 [2024-11-17 00:26:59,919 INFO L226 Difference]: Without dead ends: 17515 [2024-11-17 00:26:59,922 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 328 GetRequests, 228 SyntacticMatches, 0 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3657 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=1444, Invalid=8858, Unknown=0, NotChecked=0, Total=10302 [2024-11-17 00:26:59,922 INFO L432 NwaCegarLoop]: 168 mSDtfsCounter, 2323 mSDsluCounter, 2877 mSDsCounter, 0 mSdLazyCounter, 1004 mSolverCounterSat, 140 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2323 SdHoareTripleChecker+Valid, 3045 SdHoareTripleChecker+Invalid, 1144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 140 IncrementalHoareTripleChecker+Valid, 1004 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-17 00:26:59,923 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2323 Valid, 3045 Invalid, 1144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [140 Valid, 1004 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-17 00:26:59,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17515 states. [2024-11-17 00:27:00,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17515 to 4647. [2024-11-17 00:27:00,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4647 states, 4638 states have (on average 1.1824062095730918) internal successors, (5484), 4646 states have internal predecessors, (5484), 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) [2024-11-17 00:27:00,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4647 states to 4647 states and 5484 transitions. [2024-11-17 00:27:00,027 INFO L78 Accepts]: Start accepts. Automaton has 4647 states and 5484 transitions. Word has length 117 [2024-11-17 00:27:00,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 00:27:00,028 INFO L471 AbstractCegarLoop]: Abstraction has 4647 states and 5484 transitions. [2024-11-17 00:27:00,028 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 9.444444444444445) internal successors, (170), 17 states have internal predecessors, (170), 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) [2024-11-17 00:27:00,028 INFO L276 IsEmpty]: Start isEmpty. Operand 4647 states and 5484 transitions. [2024-11-17 00:27:00,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-17 00:27:00,032 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 00:27:00,032 INFO L215 NwaCegarLoop]: trace histogram [12, 11, 10, 6, 6, 5, 5, 5, 4, 4, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 00:27:00,049 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2024-11-17 00:27:00,233 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 00:27:00,233 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 17 more)] === [2024-11-17 00:27:00,234 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 00:27:00,234 INFO L85 PathProgramCache]: Analyzing trace with hash 1373304935, now seen corresponding path program 1 times [2024-11-17 00:27:00,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 00:27:00,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820130176] [2024-11-17 00:27:00,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 00:27:00,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 00:27:00,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:27:01,131 INFO L134 CoverageAnalysis]: Checked inductivity of 336 backedges. 11 proven. 258 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2024-11-17 00:27:01,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 00:27:01,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820130176] [2024-11-17 00:27:01,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [820130176] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 00:27:01,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1389563618] [2024-11-17 00:27:01,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 00:27:01,132 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 00:27:01,132 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 00:27:01,134 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 00:27:01,135 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-11-17 00:27:01,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:27:01,267 INFO L255 TraceCheckSpWp]: Trace formula consists of 432 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-17 00:27:01,269 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 00:27:01,488 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 [2024-11-17 00:27:01,492 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 [2024-11-17 00:27:01,597 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-17 00:27:01,597 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 19 treesize of output 15 [2024-11-17 00:27:01,605 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-17 00:27:01,605 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 19 treesize of output 15 [2024-11-17 00:27:01,679 INFO L134 CoverageAnalysis]: Checked inductivity of 336 backedges. 1 proven. 39 refuted. 0 times theorem prover too weak. 296 trivial. 0 not checked. [2024-11-17 00:27:01,679 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 00:27:01,806 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 12 treesize of output 10 [2024-11-17 00:27:01,809 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 18 treesize of output 16 [2024-11-17 00:27:02,040 INFO L134 CoverageAnalysis]: Checked inductivity of 336 backedges. 1 proven. 39 refuted. 0 times theorem prover too weak. 296 trivial. 0 not checked. [2024-11-17 00:27:02,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1389563618] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 00:27:02,040 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 00:27:02,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 8, 8] total 23 [2024-11-17 00:27:02,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211313463] [2024-11-17 00:27:02,041 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 00:27:02,041 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-17 00:27:02,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 00:27:02,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-17 00:27:02,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=479, Unknown=0, NotChecked=0, Total=552 [2024-11-17 00:27:02,042 INFO L87 Difference]: Start difference. First operand 4647 states and 5484 transitions. Second operand has 24 states, 24 states have (on average 6.291666666666667) internal successors, (151), 23 states have internal predecessors, (151), 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) [2024-11-17 00:27:02,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 00:27:02,508 INFO L93 Difference]: Finished difference Result 9959 states and 11646 transitions. [2024-11-17 00:27:02,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-17 00:27:02,508 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 6.291666666666667) internal successors, (151), 23 states have internal predecessors, (151), 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 120 [2024-11-17 00:27:02,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 00:27:02,518 INFO L225 Difference]: With dead ends: 9959 [2024-11-17 00:27:02,518 INFO L226 Difference]: Without dead ends: 9959 [2024-11-17 00:27:02,519 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 266 GetRequests, 231 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 225 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=213, Invalid=1119, Unknown=0, NotChecked=0, Total=1332 [2024-11-17 00:27:02,519 INFO L432 NwaCegarLoop]: 95 mSDtfsCounter, 538 mSDsluCounter, 895 mSDsCounter, 0 mSdLazyCounter, 467 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 538 SdHoareTripleChecker+Valid, 990 SdHoareTripleChecker+Invalid, 489 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 467 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-17 00:27:02,519 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [538 Valid, 990 Invalid, 489 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 467 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-17 00:27:02,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9959 states. [2024-11-17 00:27:02,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9959 to 6601. [2024-11-17 00:27:02,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6601 states, 6592 states have (on average 1.1849211165048543) internal successors, (7811), 6600 states have internal predecessors, (7811), 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) [2024-11-17 00:27:02,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6601 states to 6601 states and 7811 transitions. [2024-11-17 00:27:02,576 INFO L78 Accepts]: Start accepts. Automaton has 6601 states and 7811 transitions. Word has length 120 [2024-11-17 00:27:02,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 00:27:02,576 INFO L471 AbstractCegarLoop]: Abstraction has 6601 states and 7811 transitions. [2024-11-17 00:27:02,576 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 6.291666666666667) internal successors, (151), 23 states have internal predecessors, (151), 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) [2024-11-17 00:27:02,576 INFO L276 IsEmpty]: Start isEmpty. Operand 6601 states and 7811 transitions. [2024-11-17 00:27:02,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-17 00:27:02,580 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 00:27:02,580 INFO L215 NwaCegarLoop]: trace histogram [12, 11, 10, 6, 6, 5, 5, 5, 4, 4, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 00:27:02,593 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2024-11-17 00:27:02,780 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 00:27:02,781 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 17 more)] === [2024-11-17 00:27:02,781 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 00:27:02,781 INFO L85 PathProgramCache]: Analyzing trace with hash 1191042396, now seen corresponding path program 1 times [2024-11-17 00:27:02,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 00:27:02,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872355943] [2024-11-17 00:27:02,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 00:27:02,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 00:27:02,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:27:02,963 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 0 proven. 238 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2024-11-17 00:27:02,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 00:27:02,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872355943] [2024-11-17 00:27:02,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1872355943] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 00:27:02,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1866622919] [2024-11-17 00:27:02,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 00:27:02,963 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 00:27:02,963 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 00:27:02,965 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 00:27:02,980 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-11-17 00:27:03,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:27:03,119 INFO L255 TraceCheckSpWp]: Trace formula consists of 438 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-17 00:27:03,121 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 00:27:03,241 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 13 treesize of output 9 [2024-11-17 00:27:03,265 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 0 proven. 238 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2024-11-17 00:27:03,266 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 00:27:03,383 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_~x1~0.base_31 Int)) (or (not (= (select |c_#valid| v_~x1~0.base_31) 0)) (= (store |c_#valid| v_~x1~0.base_31 0) |c_ULTIMATE.start_main_old_#valid#1|))) is different from false [2024-11-17 00:27:03,395 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 0 proven. 190 refuted. 0 times theorem prover too weak. 97 trivial. 48 not checked. [2024-11-17 00:27:03,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1866622919] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 00:27:03,396 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 00:27:03,396 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7, 7] total 8 [2024-11-17 00:27:03,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392083324] [2024-11-17 00:27:03,396 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 00:27:03,396 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-17 00:27:03,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 00:27:03,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-17 00:27:03,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=43, Unknown=1, NotChecked=12, Total=72 [2024-11-17 00:27:03,397 INFO L87 Difference]: Start difference. First operand 6601 states and 7811 transitions. Second operand has 9 states, 8 states have (on average 11.0) internal successors, (88), 9 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) [2024-11-17 00:27:03,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 00:27:03,699 INFO L93 Difference]: Finished difference Result 12295 states and 14535 transitions. [2024-11-17 00:27:03,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-17 00:27:03,700 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 11.0) internal successors, (88), 9 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 122 [2024-11-17 00:27:03,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 00:27:03,718 INFO L225 Difference]: With dead ends: 12295 [2024-11-17 00:27:03,718 INFO L226 Difference]: Without dead ends: 12269 [2024-11-17 00:27:03,719 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 259 GetRequests, 241 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=201, Unknown=1, NotChecked=30, Total=306 [2024-11-17 00:27:03,719 INFO L432 NwaCegarLoop]: 125 mSDtfsCounter, 422 mSDsluCounter, 659 mSDsCounter, 0 mSdLazyCounter, 346 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 422 SdHoareTripleChecker+Valid, 784 SdHoareTripleChecker+Invalid, 777 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 346 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 426 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-17 00:27:03,722 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [422 Valid, 784 Invalid, 777 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 346 Invalid, 0 Unknown, 426 Unchecked, 0.2s Time] [2024-11-17 00:27:03,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12269 states. [2024-11-17 00:27:03,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12269 to 10003. [2024-11-17 00:27:03,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10003 states, 9994 states have (on average 1.1891134680808486) internal successors, (11884), 10002 states have internal predecessors, (11884), 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) [2024-11-17 00:27:03,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10003 states to 10003 states and 11884 transitions. [2024-11-17 00:27:03,810 INFO L78 Accepts]: Start accepts. Automaton has 10003 states and 11884 transitions. Word has length 122 [2024-11-17 00:27:03,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 00:27:03,810 INFO L471 AbstractCegarLoop]: Abstraction has 10003 states and 11884 transitions. [2024-11-17 00:27:03,810 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 11.0) internal successors, (88), 9 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) [2024-11-17 00:27:03,811 INFO L276 IsEmpty]: Start isEmpty. Operand 10003 states and 11884 transitions. [2024-11-17 00:27:03,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-11-17 00:27:03,817 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 00:27:03,817 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 15, 8, 8, 8, 7, 7, 6, 6, 4, 4, 2, 2, 2, 2, 2, 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] [2024-11-17 00:27:03,830 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2024-11-17 00:27:04,018 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2024-11-17 00:27:04,018 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 17 more)] === [2024-11-17 00:27:04,019 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 00:27:04,019 INFO L85 PathProgramCache]: Analyzing trace with hash -1928438665, now seen corresponding path program 1 times [2024-11-17 00:27:04,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 00:27:04,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295220469] [2024-11-17 00:27:04,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 00:27:04,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 00:27:04,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:27:04,154 INFO L134 CoverageAnalysis]: Checked inductivity of 654 backedges. 335 proven. 4 refuted. 0 times theorem prover too weak. 315 trivial. 0 not checked. [2024-11-17 00:27:04,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 00:27:04,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [295220469] [2024-11-17 00:27:04,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [295220469] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 00:27:04,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1849360118] [2024-11-17 00:27:04,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 00:27:04,155 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 00:27:04,155 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 00:27:04,158 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 00:27:04,159 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2024-11-17 00:27:04,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:27:04,303 INFO L255 TraceCheckSpWp]: Trace formula consists of 506 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-17 00:27:04,305 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 00:27:04,328 INFO L134 CoverageAnalysis]: Checked inductivity of 654 backedges. 335 proven. 4 refuted. 0 times theorem prover too weak. 315 trivial. 0 not checked. [2024-11-17 00:27:04,329 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 00:27:04,364 INFO L134 CoverageAnalysis]: Checked inductivity of 654 backedges. 339 proven. 0 refuted. 0 times theorem prover too weak. 315 trivial. 0 not checked. [2024-11-17 00:27:04,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1849360118] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-17 00:27:04,365 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-17 00:27:04,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7, 7] total 9 [2024-11-17 00:27:04,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309258770] [2024-11-17 00:27:04,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 00:27:04,365 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-17 00:27:04,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 00:27:04,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-17 00:27:04,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-11-17 00:27:04,366 INFO L87 Difference]: Start difference. First operand 10003 states and 11884 transitions. Second operand has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 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) [2024-11-17 00:27:04,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 00:27:04,423 INFO L93 Difference]: Finished difference Result 7130 states and 8338 transitions. [2024-11-17 00:27:04,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-17 00:27:04,424 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 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 146 [2024-11-17 00:27:04,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 00:27:04,431 INFO L225 Difference]: With dead ends: 7130 [2024-11-17 00:27:04,431 INFO L226 Difference]: Without dead ends: 7130 [2024-11-17 00:27:04,431 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 301 GetRequests, 290 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2024-11-17 00:27:04,432 INFO L432 NwaCegarLoop]: 75 mSDtfsCounter, 104 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 244 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-17 00:27:04,432 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 244 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-17 00:27:04,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7130 states. [2024-11-17 00:27:04,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7130 to 6911. [2024-11-17 00:27:04,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6911 states, 6902 states have (on average 1.1728484497247176) internal successors, (8095), 6910 states have internal predecessors, (8095), 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) [2024-11-17 00:27:04,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6911 states to 6911 states and 8095 transitions. [2024-11-17 00:27:04,524 INFO L78 Accepts]: Start accepts. Automaton has 6911 states and 8095 transitions. Word has length 146 [2024-11-17 00:27:04,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 00:27:04,524 INFO L471 AbstractCegarLoop]: Abstraction has 6911 states and 8095 transitions. [2024-11-17 00:27:04,524 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 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) [2024-11-17 00:27:04,524 INFO L276 IsEmpty]: Start isEmpty. Operand 6911 states and 8095 transitions. [2024-11-17 00:27:04,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-17 00:27:04,530 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 00:27:04,530 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 16, 12, 11, 9, 6, 5, 5, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 00:27:04,545 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2024-11-17 00:27:04,734 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2024-11-17 00:27:04,735 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 17 more)] === [2024-11-17 00:27:04,735 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 00:27:04,735 INFO L85 PathProgramCache]: Analyzing trace with hash 345130159, now seen corresponding path program 2 times [2024-11-17 00:27:04,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 00:27:04,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407129301] [2024-11-17 00:27:04,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 00:27:04,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 00:27:04,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:27:04,898 INFO L134 CoverageAnalysis]: Checked inductivity of 761 backedges. 418 proven. 3 refuted. 0 times theorem prover too weak. 340 trivial. 0 not checked. [2024-11-17 00:27:04,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 00:27:04,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1407129301] [2024-11-17 00:27:04,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1407129301] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 00:27:04,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1972375609] [2024-11-17 00:27:04,898 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-17 00:27:04,898 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 00:27:04,899 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 00:27:04,900 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 00:27:04,901 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2024-11-17 00:27:05,054 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-17 00:27:05,054 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-17 00:27:05,056 INFO L255 TraceCheckSpWp]: Trace formula consists of 543 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-17 00:27:05,058 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 00:27:05,144 INFO L134 CoverageAnalysis]: Checked inductivity of 761 backedges. 377 proven. 97 refuted. 0 times theorem prover too weak. 287 trivial. 0 not checked. [2024-11-17 00:27:05,145 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 00:27:05,213 INFO L134 CoverageAnalysis]: Checked inductivity of 761 backedges. 377 proven. 97 refuted. 0 times theorem prover too weak. 287 trivial. 0 not checked. [2024-11-17 00:27:05,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1972375609] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 00:27:05,213 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 00:27:05,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2024-11-17 00:27:05,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831933774] [2024-11-17 00:27:05,213 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 00:27:05,214 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-17 00:27:05,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 00:27:05,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-17 00:27:05,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2024-11-17 00:27:05,215 INFO L87 Difference]: Start difference. First operand 6911 states and 8095 transitions. Second operand has 13 states, 13 states have (on average 9.076923076923077) internal successors, (118), 13 states have internal predecessors, (118), 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) [2024-11-17 00:27:05,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 00:27:05,345 INFO L93 Difference]: Finished difference Result 5854 states and 6623 transitions. [2024-11-17 00:27:05,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-17 00:27:05,347 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 9.076923076923077) internal successors, (118), 13 states have internal predecessors, (118), 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 155 [2024-11-17 00:27:05,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 00:27:05,354 INFO L225 Difference]: With dead ends: 5854 [2024-11-17 00:27:05,354 INFO L226 Difference]: Without dead ends: 5854 [2024-11-17 00:27:05,354 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 329 GetRequests, 306 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=132, Invalid=468, Unknown=0, NotChecked=0, Total=600 [2024-11-17 00:27:05,354 INFO L432 NwaCegarLoop]: 137 mSDtfsCounter, 180 mSDsluCounter, 1030 mSDsCounter, 0 mSdLazyCounter, 180 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 1167 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-17 00:27:05,355 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [180 Valid, 1167 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 180 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-17 00:27:05,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5854 states. [2024-11-17 00:27:05,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5854 to 5589. [2024-11-17 00:27:05,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5589 states, 5580 states have (on average 1.1365591397849462) internal successors, (6342), 5588 states have internal predecessors, (6342), 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) [2024-11-17 00:27:05,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5589 states to 5589 states and 6342 transitions. [2024-11-17 00:27:05,393 INFO L78 Accepts]: Start accepts. Automaton has 5589 states and 6342 transitions. Word has length 155 [2024-11-17 00:27:05,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 00:27:05,395 INFO L471 AbstractCegarLoop]: Abstraction has 5589 states and 6342 transitions. [2024-11-17 00:27:05,395 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 9.076923076923077) internal successors, (118), 13 states have internal predecessors, (118), 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) [2024-11-17 00:27:05,395 INFO L276 IsEmpty]: Start isEmpty. Operand 5589 states and 6342 transitions. [2024-11-17 00:27:05,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-17 00:27:05,399 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 00:27:05,399 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 17, 10, 10, 8, 8, 7, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 00:27:05,415 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2024-11-17 00:27:05,599 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2024-11-17 00:27:05,600 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 17 more)] === [2024-11-17 00:27:05,600 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 00:27:05,600 INFO L85 PathProgramCache]: Analyzing trace with hash -1933944014, now seen corresponding path program 1 times [2024-11-17 00:27:05,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 00:27:05,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308403516] [2024-11-17 00:27:05,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 00:27:05,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 00:27:05,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:27:06,411 INFO L134 CoverageAnalysis]: Checked inductivity of 829 backedges. 104 proven. 679 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-11-17 00:27:06,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 00:27:06,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308403516] [2024-11-17 00:27:06,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [308403516] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 00:27:06,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [69702738] [2024-11-17 00:27:06,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 00:27:06,412 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 00:27:06,412 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 00:27:06,413 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 00:27:06,415 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2024-11-17 00:27:06,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:27:06,588 INFO L255 TraceCheckSpWp]: Trace formula consists of 599 conjuncts, 59 conjuncts are in the unsatisfiable core [2024-11-17 00:27:06,592 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 00:27:06,736 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 [2024-11-17 00:27:06,740 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 [2024-11-17 00:27:06,885 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-17 00:27:06,885 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 [2024-11-17 00:27:06,892 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 [2024-11-17 00:27:06,897 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 [2024-11-17 00:27:06,906 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 [2024-11-17 00:27:06,912 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 [2024-11-17 00:27:06,954 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 [2024-11-17 00:27:06,958 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 [2024-11-17 00:27:07,045 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 [2024-11-17 00:27:07,049 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 [2024-11-17 00:27:07,237 INFO L134 CoverageAnalysis]: Checked inductivity of 829 backedges. 100 proven. 673 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2024-11-17 00:27:07,238 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 00:27:07,826 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-17 00:27:07,827 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 22 treesize of output 23 [2024-11-17 00:27:07,829 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 36 treesize of output 24 [2024-11-17 00:27:07,832 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 7 [2024-11-17 00:27:07,842 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-17 00:27:07,842 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 22 treesize of output 23 [2024-11-17 00:27:07,846 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-17 00:27:07,848 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 20 treesize of output 8 [2024-11-17 00:27:08,103 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-17 00:27:08,103 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 28 treesize of output 46 [2024-11-17 00:27:08,126 INFO L134 CoverageAnalysis]: Checked inductivity of 829 backedges. 90 proven. 683 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2024-11-17 00:27:08,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [69702738] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 00:27:08,127 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 00:27:08,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13, 12] total 24 [2024-11-17 00:27:08,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238405956] [2024-11-17 00:27:08,127 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 00:27:08,128 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-17 00:27:08,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 00:27:08,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-17 00:27:08,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=525, Unknown=9, NotChecked=0, Total=600 [2024-11-17 00:27:08,129 INFO L87 Difference]: Start difference. First operand 5589 states and 6342 transitions. Second operand has 25 states, 25 states have (on average 9.64) internal successors, (241), 24 states have internal predecessors, (241), 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) [2024-11-17 00:27:12,151 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-17 00:27:16,877 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-17 00:27:18,456 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-17 00:27:20,037 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-17 00:27:21,593 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-17 00:27:23,222 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-17 00:27:24,807 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-17 00:27:26,300 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-17 00:27:27,833 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-17 00:27:29,332 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-17 00:27:30,821 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-17 00:27:34,529 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-17 00:27:36,065 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-17 00:27:37,647 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-17 00:27:39,111 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-17 00:27:40,528 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-17 00:27:41,999 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-17 00:27:43,469 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-17 00:27:45,470 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-17 00:27:47,850 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (+ c_~S~0.offset 4))) (and (= 1 (select |c_#valid| c_~x1~0.base)) (= c_~t1~0.offset 0) (forall ((v_ArrVal_1464 (Array Int Int))) (= (select (select (store |c_#memory_$Pointer$#1.offset| c_~x1~0.base v_ArrVal_1464) c_~S~0.base) .cse0) 0)) (= c_~x4~0.offset 0) (= c_~t4~0.offset 0) (= c_~x4~0.base 0) (forall ((v_ArrVal_1463 (Array Int Int))) (= 0 (select (select (store |c_#memory_$Pointer$#1.base| c_~x1~0.base v_ArrVal_1463) c_~S~0.base) .cse0))) (= c_~x1~0.offset 0) (= c_~t1~0.base 0) (forall ((|v_ULTIMATE.start_push_#t~malloc5#1.base_277| Int)) (or (not (= (select |c_#valid| |v_ULTIMATE.start_push_#t~malloc5#1.base_277|) 0)) (forall ((v_ArrVal_1463 (Array Int Int))) (= (select (select (store |c_#memory_$Pointer$#1.base| |v_ULTIMATE.start_push_#t~malloc5#1.base_277| v_ArrVal_1463) c_~S~0.base) .cse0) 0)))) (forall ((|v_ULTIMATE.start_push_#t~malloc5#1.base_277| Int)) (or (not (= (select |c_#valid| |v_ULTIMATE.start_push_#t~malloc5#1.base_277|) 0)) (forall ((v_ArrVal_1464 (Array Int Int))) (= (select (select (store |c_#memory_$Pointer$#1.offset| |v_ULTIMATE.start_push_#t~malloc5#1.base_277| v_ArrVal_1464) c_~S~0.base) .cse0) 0)))))) is different from false [2024-11-17 00:27:48,504 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (+ c_~S~0.offset 4))) (and (= 1 (select |c_#valid| c_~x1~0.base)) (= c_~t1~0.offset 0) (forall ((v_ArrVal_1464 (Array Int Int))) (= (select (select (store |c_#memory_$Pointer$#1.offset| c_~x1~0.base v_ArrVal_1464) c_~S~0.base) .cse0) 0)) (= c_~x4~0.offset 0) (= c_~x4~0.base 0) (forall ((v_ArrVal_1463 (Array Int Int))) (= 0 (select (select (store |c_#memory_$Pointer$#1.base| c_~x1~0.base v_ArrVal_1463) c_~S~0.base) .cse0))) (= c_~x1~0.offset 0) (= c_~t1~0.base 0) (forall ((|v_ULTIMATE.start_push_#t~malloc5#1.base_277| Int)) (or (not (= (select |c_#valid| |v_ULTIMATE.start_push_#t~malloc5#1.base_277|) 0)) (forall ((v_ArrVal_1463 (Array Int Int))) (= (select (select (store |c_#memory_$Pointer$#1.base| |v_ULTIMATE.start_push_#t~malloc5#1.base_277| v_ArrVal_1463) c_~S~0.base) .cse0) 0)))) (forall ((|v_ULTIMATE.start_push_#t~malloc5#1.base_277| Int)) (or (not (= (select |c_#valid| |v_ULTIMATE.start_push_#t~malloc5#1.base_277|) 0)) (forall ((v_ArrVal_1464 (Array Int Int))) (= (select (select (store |c_#memory_$Pointer$#1.offset| |v_ULTIMATE.start_push_#t~malloc5#1.base_277| v_ArrVal_1464) c_~S~0.base) .cse0) 0)))))) is different from false [2024-11-17 00:27:48,528 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (+ c_~S~0.offset 4))) (and (= 1 (select |c_#valid| c_~x1~0.base)) (= c_~t1~0.offset 0) (forall ((v_ArrVal_1464 (Array Int Int))) (= (select (select (store |c_#memory_$Pointer$#1.offset| c_~x1~0.base v_ArrVal_1464) c_~S~0.base) .cse0) 0)) (= c_~t4~0.base 0) (= c_~x4~0.offset 0) (= c_~t4~0.offset 0) (= c_~x4~0.base 0) (forall ((v_ArrVal_1463 (Array Int Int))) (= 0 (select (select (store |c_#memory_$Pointer$#1.base| c_~x1~0.base v_ArrVal_1463) c_~S~0.base) .cse0))) (= c_~x1~0.offset 0) (= c_~t1~0.base 0) (forall ((|v_ULTIMATE.start_push_#t~malloc5#1.base_277| Int)) (or (not (= (select |c_#valid| |v_ULTIMATE.start_push_#t~malloc5#1.base_277|) 0)) (forall ((v_ArrVal_1463 (Array Int Int))) (= (select (select (store |c_#memory_$Pointer$#1.base| |v_ULTIMATE.start_push_#t~malloc5#1.base_277| v_ArrVal_1463) c_~S~0.base) .cse0) 0)))) (forall ((|v_ULTIMATE.start_push_#t~malloc5#1.base_277| Int)) (or (not (= (select |c_#valid| |v_ULTIMATE.start_push_#t~malloc5#1.base_277|) 0)) (forall ((v_ArrVal_1464 (Array Int Int))) (= (select (select (store |c_#memory_$Pointer$#1.offset| |v_ULTIMATE.start_push_#t~malloc5#1.base_277| v_ArrVal_1464) c_~S~0.base) .cse0) 0)))))) is different from false [2024-11-17 00:27:49,246 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (+ c_~S~0.offset 4))) (and (= 1 (select |c_#valid| c_~x1~0.base)) (= c_~t1~0.offset 0) (forall ((v_ArrVal_1464 (Array Int Int))) (= (select (select (store |c_#memory_$Pointer$#1.offset| c_~x1~0.base v_ArrVal_1464) c_~S~0.base) .cse0) 0)) (forall ((v_ArrVal_1463 (Array Int Int))) (= 0 (select (select (store |c_#memory_$Pointer$#1.base| c_~x1~0.base v_ArrVal_1463) c_~S~0.base) .cse0))) (= c_~x1~0.offset 0) (= c_~t1~0.base 0) (forall ((|v_ULTIMATE.start_push_#t~malloc5#1.base_277| Int)) (or (not (= (select |c_#valid| |v_ULTIMATE.start_push_#t~malloc5#1.base_277|) 0)) (forall ((v_ArrVal_1463 (Array Int Int))) (= (select (select (store |c_#memory_$Pointer$#1.base| |v_ULTIMATE.start_push_#t~malloc5#1.base_277| v_ArrVal_1463) c_~S~0.base) .cse0) 0)))) (forall ((|v_ULTIMATE.start_push_#t~malloc5#1.base_277| Int)) (or (not (= (select |c_#valid| |v_ULTIMATE.start_push_#t~malloc5#1.base_277|) 0)) (forall ((v_ArrVal_1464 (Array Int Int))) (= (select (select (store |c_#memory_$Pointer$#1.offset| |v_ULTIMATE.start_push_#t~malloc5#1.base_277| v_ArrVal_1464) c_~S~0.base) .cse0) 0)))))) is different from false [2024-11-17 00:27:51,413 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-17 00:27:54,661 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-17 00:27:56,414 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-17 00:27:58,055 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-17 00:27:59,850 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-17 00:28:01,496 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-17 00:28:02,965 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1]