./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../sv-benchmarks/c/forester-heap/dll-queue-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) 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/forester-heap/dll-queue-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-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-memcleanup) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 338b6951ab628b0237aa41c64d1786e44f90130a76a8fd0978f750b3fe39d026 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 23:55:03,543 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 23:55:03,584 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2024-11-16 23:55:03,590 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 23:55:03,591 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 23:55:03,613 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 23:55:03,614 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 23:55:03,614 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 23:55:03,615 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 23:55:03,615 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 23:55:03,615 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 23:55:03,615 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 23:55:03,616 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 23:55:03,619 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 23:55:03,619 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 23:55:03,620 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 23:55:03,620 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 23:55:03,620 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 23:55:03,620 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 23:55:03,622 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 23:55:03,622 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 23:55:03,623 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 23:55:03,623 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-16 23:55:03,623 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-16 23:55:03,623 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 23:55:03,623 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 23:55:03,623 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-16 23:55:03,624 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 23:55:03,624 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-16 23:55:03,624 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 23:55:03,624 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 23:55:03,624 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 23:55:03,625 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 23:55:03,625 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 23:55:03,625 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 23:55:03,625 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 23:55:03,625 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 23:55:03,625 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 23:55:03,625 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 23:55:03,626 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 23:55:03,626 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 23:55:03,627 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 23:55:03,627 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 23:55:03,627 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 23:55:03,628 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 23:55:03,628 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 338b6951ab628b0237aa41c64d1786e44f90130a76a8fd0978f750b3fe39d026 [2024-11-16 23:55:03,822 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 23:55:03,842 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 23:55:03,844 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 23:55:03,845 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 23:55:03,846 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 23:55:03,847 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/forester-heap/dll-queue-2.i [2024-11-16 23:55:05,088 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 23:55:05,312 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 23:55:05,313 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/dll-queue-2.i [2024-11-16 23:55:05,331 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/30754a2d4/6fa40d3919d64022b6d36f092d57778d/FLAG4ac543941 [2024-11-16 23:55:05,649 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/30754a2d4/6fa40d3919d64022b6d36f092d57778d [2024-11-16 23:55:05,651 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 23:55:05,652 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 23:55:05,653 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 23:55:05,654 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 23:55:05,658 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 23:55:05,659 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:55:05" (1/1) ... [2024-11-16 23:55:05,659 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25f016da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:55:05, skipping insertion in model container [2024-11-16 23:55:05,660 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:55:05" (1/1) ... [2024-11-16 23:55:05,696 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 23:55:05,985 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 23:55:05,992 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 23:55:06,035 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 23:55:06,059 INFO L204 MainTranslator]: Completed translation [2024-11-16 23:55:06,059 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:55:06 WrapperNode [2024-11-16 23:55:06,059 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 23:55:06,060 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 23:55:06,060 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 23:55:06,061 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 23:55:06,066 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:55:06" (1/1) ... [2024-11-16 23:55:06,078 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:55:06" (1/1) ... [2024-11-16 23:55:06,105 INFO L138 Inliner]: procedures = 119, calls = 52, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 207 [2024-11-16 23:55:06,106 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 23:55:06,106 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 23:55:06,106 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 23:55:06,106 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 23:55:06,115 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:55:06" (1/1) ... [2024-11-16 23:55:06,115 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:55:06" (1/1) ... [2024-11-16 23:55:06,118 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:55:06" (1/1) ... [2024-11-16 23:55:06,137 INFO L175 MemorySlicer]: Split 31 memory accesses to 2 slices as follows [2, 29]. 94 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 9 writes are split as follows [0, 9]. [2024-11-16 23:55:06,137 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:55:06" (1/1) ... [2024-11-16 23:55:06,137 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:55:06" (1/1) ... [2024-11-16 23:55:06,148 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:55:06" (1/1) ... [2024-11-16 23:55:06,148 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:55:06" (1/1) ... [2024-11-16 23:55:06,149 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:55:06" (1/1) ... [2024-11-16 23:55:06,151 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:55:06" (1/1) ... [2024-11-16 23:55:06,153 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 23:55:06,154 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 23:55:06,154 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 23:55:06,154 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 23:55:06,155 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:55:06" (1/1) ... [2024-11-16 23:55:06,163 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 23:55:06,174 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 23:55:06,191 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) [2024-11-16 23:55:06,194 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 [2024-11-16 23:55:06,243 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-11-16 23:55:06,243 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-11-16 23:55:06,243 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-16 23:55:06,243 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-16 23:55:06,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-16 23:55:06,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-16 23:55:06,244 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-16 23:55:06,244 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 23:55:06,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-16 23:55:06,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-16 23:55:06,244 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-16 23:55:06,244 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-16 23:55:06,246 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-16 23:55:06,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 23:55:06,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-16 23:55:06,246 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 23:55:06,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 23:55:06,361 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 23:55:06,363 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 23:55:06,607 INFO L? ?]: Removed 24 outVars from TransFormulas that were not future-live. [2024-11-16 23:55:06,607 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 23:55:06,619 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 23:55:06,619 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 23:55:06,620 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 11:55:06 BoogieIcfgContainer [2024-11-16 23:55:06,620 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 23:55:06,621 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 23:55:06,622 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 23:55:06,624 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 23:55:06,625 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:55:05" (1/3) ... [2024-11-16 23:55:06,625 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7dff4b8d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:55:06, skipping insertion in model container [2024-11-16 23:55:06,626 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:55:06" (2/3) ... [2024-11-16 23:55:06,626 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7dff4b8d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:55:06, skipping insertion in model container [2024-11-16 23:55:06,626 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 11:55:06" (3/3) ... [2024-11-16 23:55:06,627 INFO L112 eAbstractionObserver]: Analyzing ICFG dll-queue-2.i [2024-11-16 23:55:06,641 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 23:55:06,641 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-16 23:55:06,678 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 23:55:06,684 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;@5aeec626, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 23:55:06,684 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-16 23:55:06,692 INFO L276 IsEmpty]: Start isEmpty. Operand has 100 states, 82 states have (on average 1.7195121951219512) internal successors, (141), 84 states have internal predecessors, (141), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-16 23:55:06,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-16 23:55:06,698 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 23:55:06,699 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:55:06,699 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-16 23:55:06,705 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:55:06,706 INFO L85 PathProgramCache]: Analyzing trace with hash 870162266, now seen corresponding path program 1 times [2024-11-16 23:55:06,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:55:06,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713349855] [2024-11-16 23:55:06,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:55:06,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:55:06,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:55:06,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:55:06,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:55:06,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713349855] [2024-11-16 23:55:06,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [713349855] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:55:06,863 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:55:06,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 23:55:06,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746365125] [2024-11-16 23:55:06,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:55:06,868 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-16 23:55:06,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:55:06,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-16 23:55:06,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 23:55:06,895 INFO L87 Difference]: Start difference. First operand has 100 states, 82 states have (on average 1.7195121951219512) internal successors, (141), 84 states have internal predecessors, (141), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:55:06,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 23:55:06,923 INFO L93 Difference]: Finished difference Result 84 states and 107 transitions. [2024-11-16 23:55:06,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 23:55:06,925 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2024-11-16 23:55:06,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 23:55:06,931 INFO L225 Difference]: With dead ends: 84 [2024-11-16 23:55:06,931 INFO L226 Difference]: Without dead ends: 81 [2024-11-16 23:55:06,933 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 [2024-11-16 23:55:06,935 INFO L432 NwaCegarLoop]: 107 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, 107 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 [2024-11-16 23:55:06,936 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 23:55:06,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2024-11-16 23:55:06,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 81. [2024-11-16 23:55:06,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 65 states have (on average 1.3846153846153846) internal successors, (90), 79 states have internal predecessors, (90), 14 states have call successors, (14), 1 states have call predecessors, (14), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:55:06,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 104 transitions. [2024-11-16 23:55:06,989 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 104 transitions. Word has length 8 [2024-11-16 23:55:06,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 23:55:06,989 INFO L471 AbstractCegarLoop]: Abstraction has 81 states and 104 transitions. [2024-11-16 23:55:06,989 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:55:06,989 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 104 transitions. [2024-11-16 23:55:06,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-16 23:55:06,990 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 23:55:06,991 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:55:06,991 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 23:55:06,991 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-16 23:55:06,993 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:55:06,993 INFO L85 PathProgramCache]: Analyzing trace with hash 1033772601, now seen corresponding path program 1 times [2024-11-16 23:55:06,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:55:06,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595702408] [2024-11-16 23:55:06,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:55:06,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:55:07,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:55:07,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:55:07,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:55:07,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1595702408] [2024-11-16 23:55:07,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1595702408] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:55:07,064 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:55:07,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 23:55:07,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371647706] [2024-11-16 23:55:07,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:55:07,065 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:55:07,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:55:07,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:55:07,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:55:07,070 INFO L87 Difference]: Start difference. First operand 81 states and 104 transitions. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:55:07,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 23:55:07,116 INFO L93 Difference]: Finished difference Result 78 states and 96 transitions. [2024-11-16 23:55:07,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:55:07,117 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2024-11-16 23:55:07,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 23:55:07,118 INFO L225 Difference]: With dead ends: 78 [2024-11-16 23:55:07,118 INFO L226 Difference]: Without dead ends: 78 [2024-11-16 23:55:07,118 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:55:07,121 INFO L432 NwaCegarLoop]: 80 mSDtfsCounter, 73 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 23:55:07,121 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 96 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 23:55:07,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2024-11-16 23:55:07,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2024-11-16 23:55:07,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 67 states have (on average 1.2985074626865671) internal successors, (87), 76 states have internal predecessors, (87), 9 states have call successors, (9), 1 states have call predecessors, (9), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:55:07,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 96 transitions. [2024-11-16 23:55:07,129 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 96 transitions. Word has length 9 [2024-11-16 23:55:07,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 23:55:07,129 INFO L471 AbstractCegarLoop]: Abstraction has 78 states and 96 transitions. [2024-11-16 23:55:07,129 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:55:07,129 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 96 transitions. [2024-11-16 23:55:07,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-16 23:55:07,130 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 23:55:07,132 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:55:07,133 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 23:55:07,133 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-16 23:55:07,133 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:55:07,133 INFO L85 PathProgramCache]: Analyzing trace with hash 873056448, now seen corresponding path program 1 times [2024-11-16 23:55:07,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:55:07,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045379442] [2024-11-16 23:55:07,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:55:07,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:55:07,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:55:07,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:55:07,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:55:07,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1045379442] [2024-11-16 23:55:07,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1045379442] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:55:07,453 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:55:07,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 23:55:07,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012844202] [2024-11-16 23:55:07,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:55:07,454 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 23:55:07,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:55:07,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 23:55:07,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 23:55:07,454 INFO L87 Difference]: Start difference. First operand 78 states and 96 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:55:07,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 23:55:07,580 INFO L93 Difference]: Finished difference Result 123 states and 151 transitions. [2024-11-16 23:55:07,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 23:55:07,581 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2024-11-16 23:55:07,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 23:55:07,582 INFO L225 Difference]: With dead ends: 123 [2024-11-16 23:55:07,582 INFO L226 Difference]: Without dead ends: 123 [2024-11-16 23:55:07,582 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 23:55:07,583 INFO L432 NwaCegarLoop]: 75 mSDtfsCounter, 150 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 23:55:07,583 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 160 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 23:55:07,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2024-11-16 23:55:07,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 77. [2024-11-16 23:55:07,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 67 states have (on average 1.2835820895522387) internal successors, (86), 75 states have internal predecessors, (86), 8 states have call successors, (8), 1 states have call predecessors, (8), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:55:07,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 94 transitions. [2024-11-16 23:55:07,595 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 94 transitions. Word has length 13 [2024-11-16 23:55:07,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 23:55:07,595 INFO L471 AbstractCegarLoop]: Abstraction has 77 states and 94 transitions. [2024-11-16 23:55:07,595 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:55:07,595 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 94 transitions. [2024-11-16 23:55:07,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-16 23:55:07,596 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 23:55:07,596 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:55:07,596 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 23:55:07,596 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-16 23:55:07,597 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:55:07,598 INFO L85 PathProgramCache]: Analyzing trace with hash -1251571684, now seen corresponding path program 1 times [2024-11-16 23:55:07,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:55:07,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316029797] [2024-11-16 23:55:07,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:55:07,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:55:07,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:55:07,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:55:07,655 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:55:07,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316029797] [2024-11-16 23:55:07,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [316029797] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:55:07,655 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:55:07,655 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 23:55:07,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858352792] [2024-11-16 23:55:07,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:55:07,656 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:55:07,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:55:07,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:55:07,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:55:07,657 INFO L87 Difference]: Start difference. First operand 77 states and 94 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:55:07,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 23:55:07,684 INFO L93 Difference]: Finished difference Result 104 states and 126 transitions. [2024-11-16 23:55:07,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:55:07,685 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2024-11-16 23:55:07,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 23:55:07,685 INFO L225 Difference]: With dead ends: 104 [2024-11-16 23:55:07,686 INFO L226 Difference]: Without dead ends: 104 [2024-11-16 23:55:07,686 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:55:07,687 INFO L432 NwaCegarLoop]: 87 mSDtfsCounter, 23 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 165 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 23:55:07,687 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 165 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 23:55:07,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2024-11-16 23:55:07,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 86. [2024-11-16 23:55:07,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 76 states have (on average 1.263157894736842) internal successors, (96), 84 states have internal predecessors, (96), 8 states have call successors, (8), 1 states have call predecessors, (8), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:55:07,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 104 transitions. [2024-11-16 23:55:07,696 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 104 transitions. Word has length 16 [2024-11-16 23:55:07,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 23:55:07,697 INFO L471 AbstractCegarLoop]: Abstraction has 86 states and 104 transitions. [2024-11-16 23:55:07,697 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:55:07,697 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 104 transitions. [2024-11-16 23:55:07,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-16 23:55:07,698 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 23:55:07,698 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:55:07,698 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 23:55:07,698 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-16 23:55:07,699 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:55:07,699 INFO L85 PathProgramCache]: Analyzing trace with hash 1425279076, now seen corresponding path program 1 times [2024-11-16 23:55:07,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:55:07,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026691805] [2024-11-16 23:55:07,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:55:07,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:55:07,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:55:07,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:55:07,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:55:07,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026691805] [2024-11-16 23:55:07,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1026691805] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:55:07,815 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:55:07,815 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 23:55:07,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893765947] [2024-11-16 23:55:07,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:55:07,816 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 23:55:07,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:55:07,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 23:55:07,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 23:55:07,817 INFO L87 Difference]: Start difference. First operand 86 states and 104 transitions. Second operand has 5 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:55:07,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 23:55:07,917 INFO L93 Difference]: Finished difference Result 99 states and 117 transitions. [2024-11-16 23:55:07,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 23:55:07,918 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2024-11-16 23:55:07,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 23:55:07,918 INFO L225 Difference]: With dead ends: 99 [2024-11-16 23:55:07,919 INFO L226 Difference]: Without dead ends: 99 [2024-11-16 23:55:07,919 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-16 23:55:07,920 INFO L432 NwaCegarLoop]: 85 mSDtfsCounter, 17 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 319 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 23:55:07,920 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 319 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 23:55:07,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2024-11-16 23:55:07,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 90. [2024-11-16 23:55:07,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 80 states have (on average 1.25) internal successors, (100), 88 states have internal predecessors, (100), 8 states have call successors, (8), 1 states have call predecessors, (8), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:55:07,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 108 transitions. [2024-11-16 23:55:07,924 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 108 transitions. Word has length 20 [2024-11-16 23:55:07,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 23:55:07,925 INFO L471 AbstractCegarLoop]: Abstraction has 90 states and 108 transitions. [2024-11-16 23:55:07,925 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:55:07,925 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 108 transitions. [2024-11-16 23:55:07,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-16 23:55:07,925 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 23:55:07,926 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:55:07,926 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 23:55:07,926 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-16 23:55:07,926 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:55:07,926 INFO L85 PathProgramCache]: Analyzing trace with hash 508916721, now seen corresponding path program 1 times [2024-11-16 23:55:07,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:55:07,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839878005] [2024-11-16 23:55:07,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:55:07,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:55:07,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:55:08,074 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:55:08,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:55:08,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839878005] [2024-11-16 23:55:08,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1839878005] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 23:55:08,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [587773073] [2024-11-16 23:55:08,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:55:08,075 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 23:55:08,075 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 23:55:08,078 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) [2024-11-16 23:55:08,079 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-16 23:55:08,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:55:08,155 INFO L255 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-16 23:55:08,159 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 23:55:08,222 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 [2024-11-16 23:55:08,262 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:55:08,262 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 23:55:08,303 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:55:08,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [587773073] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 23:55:08,304 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 23:55:08,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 4 [2024-11-16 23:55:08,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877356647] [2024-11-16 23:55:08,305 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 23:55:08,305 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 23:55:08,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:55:08,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 23:55:08,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 23:55:08,307 INFO L87 Difference]: Start difference. First operand 90 states and 108 transitions. Second operand has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:55:08,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 23:55:08,346 INFO L93 Difference]: Finished difference Result 98 states and 116 transitions. [2024-11-16 23:55:08,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 23:55:08,346 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 states have internal predecessors, (27), 0 states have call successors, (0), 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 [2024-11-16 23:55:08,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 23:55:08,347 INFO L225 Difference]: With dead ends: 98 [2024-11-16 23:55:08,347 INFO L226 Difference]: Without dead ends: 95 [2024-11-16 23:55:08,347 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 39 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 23:55:08,348 INFO L432 NwaCegarLoop]: 89 mSDtfsCounter, 0 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 247 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 23:55:08,349 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 247 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 23:55:08,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2024-11-16 23:55:08,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 93. [2024-11-16 23:55:08,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 83 states have (on average 1.2409638554216869) internal successors, (103), 91 states have internal predecessors, (103), 8 states have call successors, (8), 1 states have call predecessors, (8), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:55:08,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 111 transitions. [2024-11-16 23:55:08,356 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 111 transitions. Word has length 21 [2024-11-16 23:55:08,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 23:55:08,356 INFO L471 AbstractCegarLoop]: Abstraction has 93 states and 111 transitions. [2024-11-16 23:55:08,356 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:55:08,358 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 111 transitions. [2024-11-16 23:55:08,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-16 23:55:08,361 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 23:55:08,361 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:55:08,375 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-16 23:55:08,561 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-16 23:55:08,562 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-16 23:55:08,562 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:55:08,562 INFO L85 PathProgramCache]: Analyzing trace with hash -495304654, now seen corresponding path program 2 times [2024-11-16 23:55:08,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:55:08,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734460382] [2024-11-16 23:55:08,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:55:08,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:55:08,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:55:08,647 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:55:08,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:55:08,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734460382] [2024-11-16 23:55:08,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1734460382] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 23:55:08,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [952425307] [2024-11-16 23:55:08,648 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-16 23:55:08,648 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 23:55:08,648 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 23:55:08,650 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) [2024-11-16 23:55:08,651 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-16 23:55:08,714 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-16 23:55:08,714 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-16 23:55:08,715 INFO L255 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-16 23:55:08,716 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 23:55:08,728 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 27 treesize of output 17 [2024-11-16 23:55:08,737 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 17 [2024-11-16 23:55:08,897 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:55:08,898 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 23:55:08,957 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:55:08,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [952425307] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 23:55:08,958 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 23:55:08,958 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4, 4] total 7 [2024-11-16 23:55:08,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39541593] [2024-11-16 23:55:08,958 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 23:55:08,958 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 23:55:08,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:55:08,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 23:55:08,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-16 23:55:08,959 INFO L87 Difference]: Start difference. First operand 93 states and 111 transitions. Second operand has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:55:09,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 23:55:09,117 INFO L93 Difference]: Finished difference Result 111 states and 132 transitions. [2024-11-16 23:55:09,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 23:55:09,118 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2024-11-16 23:55:09,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 23:55:09,118 INFO L225 Difference]: With dead ends: 111 [2024-11-16 23:55:09,119 INFO L226 Difference]: Without dead ends: 97 [2024-11-16 23:55:09,119 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2024-11-16 23:55:09,120 INFO L432 NwaCegarLoop]: 85 mSDtfsCounter, 16 mSDsluCounter, 340 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 425 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 23:55:09,121 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 425 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 23:55:09,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2024-11-16 23:55:09,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 88. [2024-11-16 23:55:09,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 78 states have (on average 1.2564102564102564) internal successors, (98), 86 states have internal predecessors, (98), 8 states have call successors, (8), 1 states have call predecessors, (8), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:55:09,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 106 transitions. [2024-11-16 23:55:09,124 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 106 transitions. Word has length 23 [2024-11-16 23:55:09,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 23:55:09,125 INFO L471 AbstractCegarLoop]: Abstraction has 88 states and 106 transitions. [2024-11-16 23:55:09,125 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:55:09,125 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 106 transitions. [2024-11-16 23:55:09,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-16 23:55:09,125 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 23:55:09,126 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:55:09,142 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-16 23:55:09,326 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,SelfDestructingSolverStorable6 [2024-11-16 23:55:09,326 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-16 23:55:09,327 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:55:09,327 INFO L85 PathProgramCache]: Analyzing trace with hash -1101406234, now seen corresponding path program 1 times [2024-11-16 23:55:09,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:55:09,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563915235] [2024-11-16 23:55:09,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:55:09,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:55:09,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:55:09,557 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:55:09,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:55:09,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563915235] [2024-11-16 23:55:09,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1563915235] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 23:55:09,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1832784659] [2024-11-16 23:55:09,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:55:09,558 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 23:55:09,558 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 23:55:09,560 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) [2024-11-16 23:55:09,564 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-16 23:55:09,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:55:09,641 INFO L255 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-16 23:55:09,645 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 23:55:09,651 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-16 23:55:09,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-16 23:55:09,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-16 23:55:09,677 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 26 [2024-11-16 23:55:09,695 INFO L349 Elim1Store]: treesize reduction 46, result has 9.8 percent of original size [2024-11-16 23:55:09,696 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 44 treesize of output 34 [2024-11-16 23:55:09,698 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2024-11-16 23:55:09,712 INFO L349 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2024-11-16 23:55:09,712 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 15 [2024-11-16 23:55:09,741 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2024-11-16 23:55:09,741 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2024-11-16 23:55:09,801 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 24 treesize of output 12 [2024-11-16 23:55:09,805 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:55:09,806 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 23:55:09,836 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_270 (Array Int Int))) (not (= (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~item~0#1.base| v_ArrVal_270) |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|) 0))) is different from false [2024-11-16 23:55:09,880 INFO L349 Elim1Store]: treesize reduction 15, result has 64.3 percent of original size [2024-11-16 23:55:09,880 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 106 treesize of output 113 [2024-11-16 23:55:09,912 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-16 23:55:09,913 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 163 treesize of output 167 [2024-11-16 23:55:09,928 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 107 treesize of output 101 [2024-11-16 23:55:10,033 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2024-11-16 23:55:10,044 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-16 23:55:10,045 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 30 treesize of output 30 [2024-11-16 23:55:10,117 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:55:10,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1832784659] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 23:55:10,120 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 23:55:10,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 11 [2024-11-16 23:55:10,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181157419] [2024-11-16 23:55:10,120 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 23:55:10,120 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-16 23:55:10,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:55:10,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-16 23:55:10,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=69, Unknown=1, NotChecked=16, Total=110 [2024-11-16 23:55:10,121 INFO L87 Difference]: Start difference. First operand 88 states and 106 transitions. Second operand has 11 states, 11 states have (on average 4.636363636363637) internal successors, (51), 11 states have internal predecessors, (51), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:55:10,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 23:55:10,294 INFO L93 Difference]: Finished difference Result 165 states and 201 transitions. [2024-11-16 23:55:10,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 23:55:10,294 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.636363636363637) internal successors, (51), 11 states have internal predecessors, (51), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2024-11-16 23:55:10,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 23:55:10,295 INFO L225 Difference]: With dead ends: 165 [2024-11-16 23:55:10,295 INFO L226 Difference]: Without dead ends: 165 [2024-11-16 23:55:10,295 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 46 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=95, Unknown=1, NotChecked=20, Total=156 [2024-11-16 23:55:10,296 INFO L432 NwaCegarLoop]: 72 mSDtfsCounter, 232 mSDsluCounter, 467 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 232 SdHoareTripleChecker+Valid, 539 SdHoareTripleChecker+Invalid, 310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 117 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 23:55:10,296 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [232 Valid, 539 Invalid, 310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 190 Invalid, 0 Unknown, 117 Unchecked, 0.1s Time] [2024-11-16 23:55:10,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2024-11-16 23:55:10,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 105. [2024-11-16 23:55:10,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 95 states have (on average 1.231578947368421) internal successors, (117), 103 states have internal predecessors, (117), 8 states have call successors, (8), 1 states have call predecessors, (8), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:55:10,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 125 transitions. [2024-11-16 23:55:10,300 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 125 transitions. Word has length 25 [2024-11-16 23:55:10,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 23:55:10,300 INFO L471 AbstractCegarLoop]: Abstraction has 105 states and 125 transitions. [2024-11-16 23:55:10,300 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.636363636363637) internal successors, (51), 11 states have internal predecessors, (51), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:55:10,301 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 125 transitions. [2024-11-16 23:55:10,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-16 23:55:10,301 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 23:55:10,301 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:55:10,314 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-16 23:55:10,505 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 23:55:10,506 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-16 23:55:10,506 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:55:10,506 INFO L85 PathProgramCache]: Analyzing trace with hash 183151600, now seen corresponding path program 1 times [2024-11-16 23:55:10,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:55:10,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562378982] [2024-11-16 23:55:10,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:55:10,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:55:10,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:55:10,531 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:55:10,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:55:10,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562378982] [2024-11-16 23:55:10,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1562378982] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:55:10,532 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:55:10,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 23:55:10,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030103098] [2024-11-16 23:55:10,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:55:10,532 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:55:10,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:55:10,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:55:10,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:55:10,533 INFO L87 Difference]: Start difference. First operand 105 states and 125 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:55:10,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 23:55:10,555 INFO L93 Difference]: Finished difference Result 147 states and 172 transitions. [2024-11-16 23:55:10,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:55:10,555 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2024-11-16 23:55:10,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 23:55:10,556 INFO L225 Difference]: With dead ends: 147 [2024-11-16 23:55:10,556 INFO L226 Difference]: Without dead ends: 147 [2024-11-16 23:55:10,556 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:55:10,556 INFO L432 NwaCegarLoop]: 88 mSDtfsCounter, 31 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 23:55:10,557 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 159 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 23:55:10,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2024-11-16 23:55:10,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 121. [2024-11-16 23:55:10,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 111 states have (on average 1.1981981981981982) internal successors, (133), 119 states have internal predecessors, (133), 8 states have call successors, (8), 1 states have call predecessors, (8), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:55:10,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 141 transitions. [2024-11-16 23:55:10,566 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 141 transitions. Word has length 26 [2024-11-16 23:55:10,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 23:55:10,569 INFO L471 AbstractCegarLoop]: Abstraction has 121 states and 141 transitions. [2024-11-16 23:55:10,569 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:55:10,570 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 141 transitions. [2024-11-16 23:55:10,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-11-16 23:55:10,570 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 23:55:10,570 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:55:10,570 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 23:55:10,570 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-16 23:55:10,571 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:55:10,571 INFO L85 PathProgramCache]: Analyzing trace with hash 1291409573, now seen corresponding path program 1 times [2024-11-16 23:55:10,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:55:10,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551269071] [2024-11-16 23:55:10,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:55:10,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:55:10,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:55:11,054 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:55:11,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:55:11,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551269071] [2024-11-16 23:55:11,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1551269071] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 23:55:11,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1127021393] [2024-11-16 23:55:11,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:55:11,054 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 23:55:11,055 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 23:55:11,056 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) [2024-11-16 23:55:11,057 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-16 23:55:11,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:55:11,137 INFO L255 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-16 23:55:11,141 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 23:55:11,151 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-16 23:55:11,185 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-16 23:55:11,185 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 [2024-11-16 23:55:11,190 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 26 [2024-11-16 23:55:11,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-16 23:55:11,195 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 16 [2024-11-16 23:55:11,219 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 26 [2024-11-16 23:55:11,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-16 23:55:11,224 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 [2024-11-16 23:55:11,233 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 33 [2024-11-16 23:55:11,246 INFO L349 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2024-11-16 23:55:11,246 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 132 treesize of output 96 [2024-11-16 23:55:11,253 WARN L214 Elim1Store]: Array PQE input equivalent to false [2024-11-16 23:55:11,286 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2024-11-16 23:55:11,286 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 60 treesize of output 53 [2024-11-16 23:55:11,291 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2024-11-16 23:55:11,295 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 11 [2024-11-16 23:55:11,425 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 27 treesize of output 15 [2024-11-16 23:55:11,429 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2024-11-16 23:55:11,458 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:55:11,458 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 23:55:11,527 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 69 treesize of output 49 [2024-11-16 23:55:11,577 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-16 23:55:11,578 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 103 treesize of output 96 [2024-11-16 23:55:11,585 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-16 23:55:11,585 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 87 treesize of output 64 [2024-11-16 23:55:11,595 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-16 23:55:11,596 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 315 treesize of output 230 [2024-11-16 23:55:11,613 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-16 23:55:11,613 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 328 treesize of output 295 [2024-11-16 23:55:11,624 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 181 treesize of output 175 [2024-11-16 23:55:11,636 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-16 23:55:11,636 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 175 treesize of output 174 [2024-11-16 23:55:11,650 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-16 23:55:11,650 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 165 treesize of output 152 [2024-11-16 23:55:11,658 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 143 treesize of output 137 [2024-11-16 23:55:11,917 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:55:11,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1127021393] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 23:55:11,917 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 23:55:11,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7, 7] total 17 [2024-11-16 23:55:11,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729878093] [2024-11-16 23:55:11,918 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 23:55:11,918 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-16 23:55:11,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:55:11,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-16 23:55:11,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=224, Unknown=4, NotChecked=0, Total=272 [2024-11-16 23:55:11,919 INFO L87 Difference]: Start difference. First operand 121 states and 141 transitions. Second operand has 17 states, 17 states have (on average 5.529411764705882) internal successors, (94), 17 states have internal predecessors, (94), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:55:12,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 23:55:12,333 INFO L93 Difference]: Finished difference Result 224 states and 263 transitions. [2024-11-16 23:55:12,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-16 23:55:12,334 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 5.529411764705882) internal successors, (94), 17 states have internal predecessors, (94), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2024-11-16 23:55:12,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 23:55:12,335 INFO L225 Difference]: With dead ends: 224 [2024-11-16 23:55:12,335 INFO L226 Difference]: Without dead ends: 224 [2024-11-16 23:55:12,335 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=104, Invalid=397, Unknown=5, NotChecked=0, Total=506 [2024-11-16 23:55:12,335 INFO L432 NwaCegarLoop]: 83 mSDtfsCounter, 339 mSDsluCounter, 815 mSDsCounter, 0 mSdLazyCounter, 394 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 339 SdHoareTripleChecker+Valid, 898 SdHoareTripleChecker+Invalid, 414 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 394 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 23:55:12,335 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [339 Valid, 898 Invalid, 414 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 394 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 23:55:12,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2024-11-16 23:55:12,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 131. [2024-11-16 23:55:12,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 121 states have (on average 1.2066115702479339) internal successors, (146), 129 states have internal predecessors, (146), 8 states have call successors, (8), 1 states have call predecessors, (8), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:55:12,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 154 transitions. [2024-11-16 23:55:12,340 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 154 transitions. Word has length 35 [2024-11-16 23:55:12,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 23:55:12,340 INFO L471 AbstractCegarLoop]: Abstraction has 131 states and 154 transitions. [2024-11-16 23:55:12,340 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 5.529411764705882) internal successors, (94), 17 states have internal predecessors, (94), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:55:12,340 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 154 transitions. [2024-11-16 23:55:12,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-11-16 23:55:12,341 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 23:55:12,341 INFO L215 NwaCegarLoop]: trace histogram [3, 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] [2024-11-16 23:55:12,353 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-16 23:55:12,541 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 23:55:12,541 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-16 23:55:12,542 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:55:12,542 INFO L85 PathProgramCache]: Analyzing trace with hash 813143289, now seen corresponding path program 1 times [2024-11-16 23:55:12,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:55:12,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613111463] [2024-11-16 23:55:12,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:55:12,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:55:12,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:55:12,588 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-16 23:55:12,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:55:12,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613111463] [2024-11-16 23:55:12,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [613111463] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:55:12,588 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:55:12,588 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 23:55:12,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294495364] [2024-11-16 23:55:12,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:55:12,589 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:55:12,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:55:12,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:55:12,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:55:12,589 INFO L87 Difference]: Start difference. First operand 131 states and 154 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:55:12,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 23:55:12,612 INFO L93 Difference]: Finished difference Result 175 states and 204 transitions. [2024-11-16 23:55:12,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:55:12,613 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2024-11-16 23:55:12,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 23:55:12,613 INFO L225 Difference]: With dead ends: 175 [2024-11-16 23:55:12,613 INFO L226 Difference]: Without dead ends: 175 [2024-11-16 23:55:12,614 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:55:12,614 INFO L432 NwaCegarLoop]: 119 mSDtfsCounter, 36 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 187 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 23:55:12,614 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 187 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 23:55:12,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2024-11-16 23:55:12,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 147. [2024-11-16 23:55:12,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 137 states have (on average 1.1897810218978102) internal successors, (163), 145 states have internal predecessors, (163), 8 states have call successors, (8), 1 states have call predecessors, (8), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:55:12,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 171 transitions. [2024-11-16 23:55:12,619 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 171 transitions. Word has length 35 [2024-11-16 23:55:12,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 23:55:12,619 INFO L471 AbstractCegarLoop]: Abstraction has 147 states and 171 transitions. [2024-11-16 23:55:12,620 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:55:12,620 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 171 transitions. [2024-11-16 23:55:12,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-11-16 23:55:12,623 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 23:55:12,623 INFO L215 NwaCegarLoop]: trace histogram [3, 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] [2024-11-16 23:55:12,623 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-16 23:55:12,624 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-16 23:55:12,624 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:55:12,624 INFO L85 PathProgramCache]: Analyzing trace with hash -595355331, now seen corresponding path program 1 times [2024-11-16 23:55:12,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:55:12,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074455234] [2024-11-16 23:55:12,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:55:12,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:55:12,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:55:13,022 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:55:13,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:55:13,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1074455234] [2024-11-16 23:55:13,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1074455234] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 23:55:13,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [244865760] [2024-11-16 23:55:13,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:55:13,022 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 23:55:13,022 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 23:55:13,024 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) [2024-11-16 23:55:13,031 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-16 23:55:13,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:55:13,118 INFO L255 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-11-16 23:55:13,120 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 23:55:13,126 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-16 23:55:13,152 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 33 [2024-11-16 23:55:13,159 INFO L349 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2024-11-16 23:55:13,159 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 93 treesize of output 61 [2024-11-16 23:55:13,164 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 42 treesize of output 30 [2024-11-16 23:55:13,167 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 26 [2024-11-16 23:55:13,179 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2024-11-16 23:55:13,179 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 1 case distinctions, treesize of input 38 treesize of output 35 [2024-11-16 23:55:13,189 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2024-11-16 23:55:13,193 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2024-11-16 23:55:13,207 INFO L349 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2024-11-16 23:55:13,207 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2024-11-16 23:55:13,231 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-16 23:55:13,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-16 23:55:13,343 INFO L349 Elim1Store]: treesize reduction 48, result has 23.8 percent of original size [2024-11-16 23:55:13,343 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 3 new quantified variables, introduced 2 case distinctions, treesize of input 114 treesize of output 70 [2024-11-16 23:55:13,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-16 23:55:13,361 INFO L349 Elim1Store]: treesize reduction 69, result has 13.8 percent of original size [2024-11-16 23:55:13,362 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 92 treesize of output 77 [2024-11-16 23:55:13,365 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 88 treesize of output 66 [2024-11-16 23:55:13,382 INFO L349 Elim1Store]: treesize reduction 8, result has 78.4 percent of original size [2024-11-16 23:55:13,382 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 28 treesize of output 38 [2024-11-16 23:55:13,482 INFO L349 Elim1Store]: treesize reduction 40, result has 21.6 percent of original size [2024-11-16 23:55:13,483 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 126 treesize of output 81 [2024-11-16 23:55:13,861 INFO L349 Elim1Store]: treesize reduction 36, result has 41.0 percent of original size [2024-11-16 23:55:13,862 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 103 treesize of output 66 [2024-11-16 23:55:13,888 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:55:13,888 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 23:55:14,036 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-16 23:55:14,037 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 55 treesize of output 50 [2024-11-16 23:55:14,082 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-16 23:55:14,082 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 200 treesize of output 121 [2024-11-16 23:55:14,138 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-16 23:55:14,139 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 195287 treesize of output 179841 [2024-11-16 23:55:14,444 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-16 23:55:14,445 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 1516 treesize of output 1414 [2024-11-16 23:55:14,501 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-16 23:55:14,502 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 1275 treesize of output 1200 [2024-11-16 23:55:14,524 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 1191 treesize of output 1133 [2024-11-16 23:55:14,836 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2024-11-16 23:55:14,856 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-16 23:55:14,856 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 77 treesize of output 69 [2024-11-16 23:55:14,981 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:55:14,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [244865760] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 23:55:14,981 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 23:55:14,981 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7, 8] total 18 [2024-11-16 23:55:14,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079410038] [2024-11-16 23:55:14,981 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 23:55:14,982 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-16 23:55:14,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:55:14,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-16 23:55:14,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=244, Unknown=3, NotChecked=0, Total=306 [2024-11-16 23:55:14,982 INFO L87 Difference]: Start difference. First operand 147 states and 171 transitions. Second operand has 18 states, 18 states have (on average 5.388888888888889) internal successors, (97), 18 states have internal predecessors, (97), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:55:19,023 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-16 23:55:23,078 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-16 23:55:23,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 23:55:23,630 INFO L93 Difference]: Finished difference Result 223 states and 261 transitions. [2024-11-16 23:55:23,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-16 23:55:23,631 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.388888888888889) internal successors, (97), 18 states have internal predecessors, (97), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2024-11-16 23:55:23,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 23:55:23,631 INFO L225 Difference]: With dead ends: 223 [2024-11-16 23:55:23,631 INFO L226 Difference]: Without dead ends: 223 [2024-11-16 23:55:23,632 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=130, Invalid=466, Unknown=4, NotChecked=0, Total=600 [2024-11-16 23:55:23,632 INFO L432 NwaCegarLoop]: 92 mSDtfsCounter, 245 mSDsluCounter, 781 mSDsCounter, 0 mSdLazyCounter, 388 mSolverCounterSat, 16 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 245 SdHoareTripleChecker+Valid, 873 SdHoareTripleChecker+Invalid, 409 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 388 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2024-11-16 23:55:23,632 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [245 Valid, 873 Invalid, 409 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 388 Invalid, 5 Unknown, 0 Unchecked, 8.4s Time] [2024-11-16 23:55:23,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2024-11-16 23:55:23,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 167. [2024-11-16 23:55:23,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 157 states have (on average 1.1719745222929936) internal successors, (184), 165 states have internal predecessors, (184), 8 states have call successors, (8), 1 states have call predecessors, (8), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:55:23,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 192 transitions. [2024-11-16 23:55:23,635 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 192 transitions. Word has length 36 [2024-11-16 23:55:23,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 23:55:23,636 INFO L471 AbstractCegarLoop]: Abstraction has 167 states and 192 transitions. [2024-11-16 23:55:23,636 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 5.388888888888889) internal successors, (97), 18 states have internal predecessors, (97), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:55:23,636 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 192 transitions. [2024-11-16 23:55:23,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-11-16 23:55:23,636 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 23:55:23,638 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:55:23,650 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-16 23:55:23,838 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,SelfDestructingSolverStorable11 [2024-11-16 23:55:23,838 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-16 23:55:23,838 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:55:23,839 INFO L85 PathProgramCache]: Analyzing trace with hash -1833583409, now seen corresponding path program 1 times [2024-11-16 23:55:23,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:55:23,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1990516270] [2024-11-16 23:55:23,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:55:23,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:55:23,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:55:23,912 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-16 23:55:23,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:55:23,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1990516270] [2024-11-16 23:55:23,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1990516270] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 23:55:23,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [765125396] [2024-11-16 23:55:23,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:55:23,913 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 23:55:23,913 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 23:55:23,915 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) [2024-11-16 23:55:23,916 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-16 23:55:23,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:55:23,997 INFO L255 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-16 23:55:23,999 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 23:55:24,003 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-16 23:55:24,025 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 33 [2024-11-16 23:55:24,029 WARN L214 Elim1Store]: Array PQE input equivalent to false [2024-11-16 23:55:24,031 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 0 case distinctions, treesize of input 18 treesize of output 18 [2024-11-16 23:55:24,032 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 30 treesize of output 22 [2024-11-16 23:55:24,036 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2024-11-16 23:55:24,043 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-16 23:55:24,043 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 [2024-11-16 23:55:24,047 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 26 [2024-11-16 23:55:24,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-16 23:55:24,051 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 [2024-11-16 23:55:24,065 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 [2024-11-16 23:55:24,146 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 24 treesize of output 12 [2024-11-16 23:55:24,155 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:55:24,156 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 23:55:24,244 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-16 23:55:24,245 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 75 treesize of output 59 [2024-11-16 23:55:24,253 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-16 23:55:24,253 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 380 treesize of output 259 [2024-11-16 23:55:24,260 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 142 treesize of output 136 [2024-11-16 23:55:24,268 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-16 23:55:24,269 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 174 treesize of output 170 [2024-11-16 23:55:24,277 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-16 23:55:24,278 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 35 treesize of output 36 [2024-11-16 23:55:24,284 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 48 treesize of output 40 [2024-11-16 23:55:24,292 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 27 treesize of output 25 [2024-11-16 23:55:24,459 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:55:24,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [765125396] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 23:55:24,459 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 23:55:24,459 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6, 7] total 13 [2024-11-16 23:55:24,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601187441] [2024-11-16 23:55:24,460 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 23:55:24,460 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-16 23:55:24,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:55:24,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-16 23:55:24,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=123, Unknown=1, NotChecked=0, Total=156 [2024-11-16 23:55:24,462 INFO L87 Difference]: Start difference. First operand 167 states and 192 transitions. Second operand has 13 states, 13 states have (on average 7.461538461538462) internal successors, (97), 13 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:55:24,555 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|))) (and (not (= .cse0 0)) (not (= |c_ULTIMATE.start_main_~head~0#1.base| .cse0)) (not (= |c_ULTIMATE.start_main_~head~0#1.base| 0)) (or (and (= |c_ULTIMATE.start_main_~item~0#1.offset| 0) (= |c_ULTIMATE.start_main_~item~0#1.base| 0)) (forall ((v_ArrVal_716 (Array Int Int))) (not (= (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~item~0#1.base| v_ArrVal_716) |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|) 0)))))) is different from false [2024-11-16 23:55:24,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 23:55:24,663 INFO L93 Difference]: Finished difference Result 211 states and 243 transitions. [2024-11-16 23:55:24,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-16 23:55:24,664 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 7.461538461538462) internal successors, (97), 13 states have internal predecessors, (97), 0 states have call successors, (0), 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 36 [2024-11-16 23:55:24,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 23:55:24,665 INFO L225 Difference]: With dead ends: 211 [2024-11-16 23:55:24,665 INFO L226 Difference]: Without dead ends: 201 [2024-11-16 23:55:24,665 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=75, Invalid=233, Unknown=2, NotChecked=32, Total=342 [2024-11-16 23:55:24,666 INFO L432 NwaCegarLoop]: 100 mSDtfsCounter, 274 mSDsluCounter, 442 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 274 SdHoareTripleChecker+Valid, 542 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 9 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 23:55:24,666 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [274 Valid, 542 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 192 Invalid, 0 Unknown, 9 Unchecked, 0.1s Time] [2024-11-16 23:55:24,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2024-11-16 23:55:24,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 183. [2024-11-16 23:55:24,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 173 states have (on average 1.1734104046242775) internal successors, (203), 181 states have internal predecessors, (203), 8 states have call successors, (8), 1 states have call predecessors, (8), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:55:24,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 211 transitions. [2024-11-16 23:55:24,669 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 211 transitions. Word has length 36 [2024-11-16 23:55:24,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 23:55:24,669 INFO L471 AbstractCegarLoop]: Abstraction has 183 states and 211 transitions. [2024-11-16 23:55:24,670 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.461538461538462) internal successors, (97), 13 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:55:24,670 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 211 transitions. [2024-11-16 23:55:24,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-16 23:55:24,670 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 23:55:24,670 INFO L215 NwaCegarLoop]: trace histogram [3, 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] [2024-11-16 23:55:24,686 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-16 23:55:24,870 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 23:55:24,871 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-16 23:55:24,871 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:55:24,871 INFO L85 PathProgramCache]: Analyzing trace with hash -1075066480, now seen corresponding path program 2 times [2024-11-16 23:55:24,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:55:24,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920074847] [2024-11-16 23:55:24,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:55:24,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:55:24,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:55:25,149 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:55:25,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:55:25,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920074847] [2024-11-16 23:55:25,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1920074847] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 23:55:25,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1786845167] [2024-11-16 23:55:25,150 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-16 23:55:25,150 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 23:55:25,150 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 23:55:25,151 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) [2024-11-16 23:55:25,152 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-16 23:55:25,246 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-16 23:55:25,246 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-16 23:55:25,248 INFO L255 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 38 conjuncts are in the unsatisfiable core [2024-11-16 23:55:25,250 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 23:55:25,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-16 23:55:25,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-16 23:55:25,286 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 26 [2024-11-16 23:55:25,297 INFO L349 Elim1Store]: treesize reduction 46, result has 9.8 percent of original size [2024-11-16 23:55:25,298 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 58 treesize of output 46 [2024-11-16 23:55:25,307 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2024-11-16 23:55:25,336 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2024-11-16 23:55:25,337 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 48 treesize of output 45 [2024-11-16 23:55:25,528 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 39 treesize of output 23 [2024-11-16 23:55:25,569 WARN L873 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~item~0#1.base_51| Int) (|v_ULTIMATE.start_main_~item~0#1.base_52| Int)) (and (= (select (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~item~0#1.base_51| 1) |v_ULTIMATE.start_main_~item~0#1.base_52|) 0) (= (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~item~0#1.base_51|) 0) (= |c_#valid| (store (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~item~0#1.base_51| 0) |v_ULTIMATE.start_main_~item~0#1.base_52| 0)))) is different from true [2024-11-16 23:55:25,591 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 4 not checked. [2024-11-16 23:55:25,592 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 23:55:25,643 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_811 (Array Int Int))) (= (store (store |c_#valid| |c_ULTIMATE.start_main_~head~0#1.base| 0) (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~item~0#1.base| v_ArrVal_811) |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|) 0) |c_ULTIMATE.start_main_old_#valid#1|)) is different from false [2024-11-16 23:55:25,669 INFO L349 Elim1Store]: treesize reduction 15, result has 64.3 percent of original size [2024-11-16 23:55:25,670 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 293 treesize of output 287 [2024-11-16 23:55:25,689 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-16 23:55:25,689 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 259 treesize of output 249 [2024-11-16 23:55:25,709 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 195 treesize of output 189 [2024-11-16 23:55:25,756 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 71 treesize of output 67 [2024-11-16 23:55:25,910 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-16 23:55:25,910 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 332 treesize of output 310 [2024-11-16 23:55:27,200 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:55:27,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1786845167] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 23:55:27,200 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 23:55:27,200 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 14 [2024-11-16 23:55:27,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819862576] [2024-11-16 23:55:27,201 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 23:55:27,201 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-16 23:55:27,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:55:27,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-16 23:55:27,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=120, Unknown=2, NotChecked=46, Total=210 [2024-11-16 23:55:27,202 INFO L87 Difference]: Start difference. First operand 183 states and 211 transitions. Second operand has 15 states, 14 states have (on average 7.5) internal successors, (105), 15 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:55:28,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 23:55:28,371 INFO L93 Difference]: Finished difference Result 208 states and 240 transitions. [2024-11-16 23:55:28,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 23:55:28,373 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 7.5) internal successors, (105), 15 states have internal predecessors, (105), 0 states have call successors, (0), 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 38 [2024-11-16 23:55:28,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 23:55:28,373 INFO L225 Difference]: With dead ends: 208 [2024-11-16 23:55:28,374 INFO L226 Difference]: Without dead ends: 205 [2024-11-16 23:55:28,374 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 67 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=45, Invalid=143, Unknown=2, NotChecked=50, Total=240 [2024-11-16 23:55:28,374 INFO L432 NwaCegarLoop]: 83 mSDtfsCounter, 76 mSDsluCounter, 556 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 639 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 230 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-16 23:55:28,374 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 639 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 198 Invalid, 0 Unknown, 230 Unchecked, 1.0s Time] [2024-11-16 23:55:28,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2024-11-16 23:55:28,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 195. [2024-11-16 23:55:28,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 185 states have (on average 1.1837837837837837) internal successors, (219), 193 states have internal predecessors, (219), 8 states have call successors, (8), 1 states have call predecessors, (8), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:55:28,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 227 transitions. [2024-11-16 23:55:28,379 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 227 transitions. Word has length 38 [2024-11-16 23:55:28,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 23:55:28,379 INFO L471 AbstractCegarLoop]: Abstraction has 195 states and 227 transitions. [2024-11-16 23:55:28,379 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 7.5) internal successors, (105), 15 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:55:28,379 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 227 transitions. [2024-11-16 23:55:28,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-11-16 23:55:28,379 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 23:55:28,379 INFO L215 NwaCegarLoop]: trace histogram [3, 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, 1] [2024-11-16 23:55:28,394 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-16 23:55:28,580 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 23:55:28,580 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-16 23:55:28,581 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:55:28,581 INFO L85 PathProgramCache]: Analyzing trace with hash 400206247, now seen corresponding path program 1 times [2024-11-16 23:55:28,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:55:28,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103329629] [2024-11-16 23:55:28,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:55:28,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:55:28,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:55:29,022 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:55:29,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:55:29,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103329629] [2024-11-16 23:55:29,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2103329629] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 23:55:29,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [428138146] [2024-11-16 23:55:29,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:55:29,023 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 23:55:29,023 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 23:55:29,027 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) [2024-11-16 23:55:29,028 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-16 23:55:29,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:55:29,135 INFO L255 TraceCheckSpWp]: Trace formula consists of 243 conjuncts, 49 conjuncts are in the unsatisfiable core [2024-11-16 23:55:29,138 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 23:55:29,142 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-16 23:55:29,156 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 33 [2024-11-16 23:55:29,163 INFO L349 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2024-11-16 23:55:29,163 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 142 treesize of output 104 [2024-11-16 23:55:29,166 WARN L214 Elim1Store]: Array PQE input equivalent to false [2024-11-16 23:55:29,177 INFO L349 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2024-11-16 23:55:29,177 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2024-11-16 23:55:29,183 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 26 [2024-11-16 23:55:29,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-16 23:55:29,186 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 16 [2024-11-16 23:55:29,191 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 26 [2024-11-16 23:55:29,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-16 23:55:29,195 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 [2024-11-16 23:55:29,219 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 [2024-11-16 23:55:29,223 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 [2024-11-16 23:55:29,319 INFO L349 Elim1Store]: treesize reduction 31, result has 3.1 percent of original size [2024-11-16 23:55:29,319 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 3 new quantified variables, introduced 1 case distinctions, treesize of input 140 treesize of output 86 [2024-11-16 23:55:29,326 INFO L349 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2024-11-16 23:55:29,327 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 132 treesize of output 96 [2024-11-16 23:55:29,340 INFO L349 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2024-11-16 23:55:29,340 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 126 treesize of output 79 [2024-11-16 23:55:29,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-16 23:55:29,352 INFO L349 Elim1Store]: treesize reduction 25, result has 16.7 percent of original size [2024-11-16 23:55:29,353 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 125 treesize of output 102 [2024-11-16 23:55:29,367 INFO L349 Elim1Store]: treesize reduction 8, result has 61.9 percent of original size [2024-11-16 23:55:29,367 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 20 treesize of output 22 [2024-11-16 23:55:29,374 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 44 [2024-11-16 23:55:29,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-16 23:55:29,378 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 30 [2024-11-16 23:55:29,425 INFO L349 Elim1Store]: treesize reduction 25, result has 16.7 percent of original size [2024-11-16 23:55:29,426 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 47 treesize of output 42 [2024-11-16 23:55:29,430 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 25 [2024-11-16 23:55:29,645 INFO L349 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2024-11-16 23:55:29,645 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 71 treesize of output 30 [2024-11-16 23:55:29,650 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-11-16 23:55:29,651 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:55:29,651 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 23:55:29,978 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-16 23:55:29,979 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 91 treesize of output 95 [2024-11-16 23:55:29,985 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-16 23:55:29,985 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 105 treesize of output 93 [2024-11-16 23:55:29,998 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-16 23:55:29,998 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 108 treesize of output 108 [2024-11-16 23:55:30,003 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-16 23:55:30,004 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 88 treesize of output 80 [2024-11-16 23:55:30,018 WARN L851 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_963 (Array Int Int)) (v_ArrVal_965 (Array Int Int)) (v_arrayElimArr_26 (Array Int Int)) (v_ArrVal_968 (Array Int Int)) (v_ArrVal_967 (Array Int Int)) (v_arrayElimArr_27 (Array Int Int))) (let ((.cse3 (select v_arrayElimArr_27 |c_ULTIMATE.start_main_~item~0#1.offset|))) (let ((.cse1 (store (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~item~0#1.base| v_arrayElimArr_27) .cse3 v_ArrVal_963))) (let ((.cse2 (select (select .cse1 |c_ULTIMATE.start_main_~item~0#1.base|) |c_ULTIMATE.start_main_~item~0#1.offset|))) (or (not (= (select (let ((.cse0 (store .cse1 .cse2 v_ArrVal_968))) (select .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|))) (select (select (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_~item~0#1.base| v_arrayElimArr_26) .cse3 v_ArrVal_965) .cse2 v_ArrVal_967) |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|)) 0)) (= .cse2 0) (not (= (select |c_#valid| .cse3) 0)) (not (= (select v_arrayElimArr_26 |c_ULTIMATE.start_main_~item~0#1.offset|) 0))))))) (forall ((v_ArrVal_963 (Array Int Int)) (v_ArrVal_965 (Array Int Int)) (v_ArrVal_968 (Array Int Int)) (v_ArrVal_967 (Array Int Int)) (v_arrayElimArr_28 (Array Int Int)) (v_arrayElimArr_29 (Array Int Int))) (let ((.cse8 (select v_arrayElimArr_29 |c_ULTIMATE.start_main_~item~0#1.offset|))) (let ((.cse4 (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_~item~0#1.base| v_arrayElimArr_28) .cse8 v_ArrVal_965))) (or (= (select (select .cse4 |c_ULTIMATE.start_main_~item~0#1.base|) |c_ULTIMATE.start_main_~item~0#1.offset|) 0) (not (= (select v_arrayElimArr_28 |c_ULTIMATE.start_main_~item~0#1.offset|) 0)) (not (= (let ((.cse6 (store (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~item~0#1.base| v_arrayElimArr_29) .cse8 v_ArrVal_963))) (let ((.cse7 (select (select .cse6 |c_ULTIMATE.start_main_~item~0#1.base|) |c_ULTIMATE.start_main_~item~0#1.offset|))) (select (let ((.cse5 (store .cse6 .cse7 v_ArrVal_968))) (select .cse5 (select (select .cse5 |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|))) (select (select (store .cse4 .cse7 v_ArrVal_967) |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|)))) 0)) (not (= (select |c_#valid| .cse8) 0))))))) is different from false [2024-11-16 23:55:30,036 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-16 23:55:30,037 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 1111 treesize of output 888 [2024-11-16 23:55:30,044 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-16 23:55:30,045 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 879 treesize of output 624 [2024-11-16 23:55:45,333 WARN L286 SmtUtils]: Spent 15.14s on a formula simplification. DAG size of input: 1835 DAG size of output: 733 (called from [L 346] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2024-11-16 23:55:45,333 INFO L349 Elim1Store]: treesize reduction 4916, result has 32.6 percent of original size [2024-11-16 23:55:45,339 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 34 select indices, 34 select index equivalence classes, 0 disjoint index pairs (out of 561 index pairs), introduced 43 new quantified variables, introduced 561 case distinctions, treesize of input 2443348 treesize of output 1774055 [2024-11-16 23:56:05,519 WARN L286 SmtUtils]: Spent 20.17s on a formula simplification. DAG size of input: 5639 DAG size of output: 2237 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-16 23:56:08,262 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-16 23:56:08,270 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 1809676 treesize of output 1533099