./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/valid-memsafety.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-acceleration/array3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-acceleration/array3.i -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9dfb76d38495bc50f893b9a1fbc1c4079ae42ab458f1c235795d8ebc0da579ea --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 18:21:01,135 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 18:21:01,208 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-10-11 18:21:01,214 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 18:21:01,214 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 18:21:01,247 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 18:21:01,247 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 18:21:01,249 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 18:21:01,249 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 18:21:01,250 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 18:21:01,250 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 18:21:01,250 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 18:21:01,252 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 18:21:01,253 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 18:21:01,253 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 18:21:01,257 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 18:21:01,258 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 18:21:01,258 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 18:21:01,258 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 18:21:01,258 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 18:21:01,258 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-11 18:21:01,259 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-11 18:21:01,260 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-11 18:21:01,260 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 18:21:01,260 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-11 18:21:01,260 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 18:21:01,261 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-11 18:21:01,261 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 18:21:01,261 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 18:21:01,262 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 18:21:01,262 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 18:21:01,262 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 18:21:01,262 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 18:21:01,263 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 18:21:01,263 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 18:21:01,263 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 18:21:01,263 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 18:21:01,264 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 18:21:01,264 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 18:21:01,264 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 18:21:01,265 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 18:21:01,267 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 18:21:01,267 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-clean/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9dfb76d38495bc50f893b9a1fbc1c4079ae42ab458f1c235795d8ebc0da579ea [2024-10-11 18:21:01,555 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 18:21:01,586 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 18:21:01,589 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 18:21:01,591 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 18:21:01,592 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 18:21:01,593 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-acceleration/array3.i [2024-10-11 18:21:03,136 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 18:21:03,331 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 18:21:03,332 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-acceleration/array3.i [2024-10-11 18:21:03,339 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/1d0ac4f3a/111b4185f7a7439cb2f49fd0ce562663/FLAGd600d475b [2024-10-11 18:21:03,725 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/1d0ac4f3a/111b4185f7a7439cb2f49fd0ce562663 [2024-10-11 18:21:03,728 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 18:21:03,730 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 18:21:03,731 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 18:21:03,731 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 18:21:03,738 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 18:21:03,739 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 06:21:03" (1/1) ... [2024-10-11 18:21:03,740 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@712a9402 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:21:03, skipping insertion in model container [2024-10-11 18:21:03,740 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 06:21:03" (1/1) ... [2024-10-11 18:21:03,764 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 18:21:03,964 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 18:21:03,973 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 18:21:04,006 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 18:21:04,023 INFO L204 MainTranslator]: Completed translation [2024-10-11 18:21:04,023 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:21:04 WrapperNode [2024-10-11 18:21:04,024 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 18:21:04,025 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 18:21:04,025 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 18:21:04,025 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 18:21:04,032 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:21:04" (1/1) ... [2024-10-11 18:21:04,060 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:21:04" (1/1) ... [2024-10-11 18:21:04,086 INFO L138 Inliner]: procedures = 16, calls = 12, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 46 [2024-10-11 18:21:04,086 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 18:21:04,087 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 18:21:04,087 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 18:21:04,087 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 18:21:04,096 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:21:04" (1/1) ... [2024-10-11 18:21:04,096 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:21:04" (1/1) ... [2024-10-11 18:21:04,097 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:21:04" (1/1) ... [2024-10-11 18:21:04,112 INFO L175 MemorySlicer]: Split 4 memory accesses to 2 slices as follows [2, 2]. 50 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 1 writes are split as follows [0, 1]. [2024-10-11 18:21:04,113 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:21:04" (1/1) ... [2024-10-11 18:21:04,113 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:21:04" (1/1) ... [2024-10-11 18:21:04,123 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:21:04" (1/1) ... [2024-10-11 18:21:04,127 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:21:04" (1/1) ... [2024-10-11 18:21:04,129 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:21:04" (1/1) ... [2024-10-11 18:21:04,129 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:21:04" (1/1) ... [2024-10-11 18:21:04,135 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 18:21:04,136 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 18:21:04,140 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 18:21:04,140 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 18:21:04,141 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:21:04" (1/1) ... [2024-10-11 18:21:04,148 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 18:21:04,161 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 18:21:04,180 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 18:21:04,186 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 18:21:04,241 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 18:21:04,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-11 18:21:04,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-11 18:21:04,242 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-11 18:21:04,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-11 18:21:04,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-11 18:21:04,242 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 18:21:04,243 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 18:21:04,243 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-11 18:21:04,243 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-11 18:21:04,243 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-11 18:21:04,331 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 18:21:04,334 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 18:21:04,535 INFO L? ?]: Removed 18 outVars from TransFormulas that were not future-live. [2024-10-11 18:21:04,535 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 18:21:04,579 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 18:21:04,580 INFO L314 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-11 18:21:04,580 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 06:21:04 BoogieIcfgContainer [2024-10-11 18:21:04,580 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 18:21:04,585 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 18:21:04,585 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 18:21:04,589 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 18:21:04,590 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 06:21:03" (1/3) ... [2024-10-11 18:21:04,590 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43d2f7dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 06:21:04, skipping insertion in model container [2024-10-11 18:21:04,591 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:21:04" (2/3) ... [2024-10-11 18:21:04,591 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43d2f7dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 06:21:04, skipping insertion in model container [2024-10-11 18:21:04,591 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 06:21:04" (3/3) ... [2024-10-11 18:21:04,593 INFO L112 eAbstractionObserver]: Analyzing ICFG array3.i [2024-10-11 18:21:04,610 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 18:21:04,611 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2024-10-11 18:21:04,665 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 18:21:04,676 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;@4f68addf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 18:21:04,676 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-10-11 18:21:04,680 INFO L276 IsEmpty]: Start isEmpty. Operand has 21 states, 14 states have (on average 1.9285714285714286) internal successors, (27), 20 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) [2024-10-11 18:21:04,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-10-11 18:21:04,687 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 18:21:04,687 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-10-11 18:21:04,688 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 3 more)] === [2024-10-11 18:21:04,693 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 18:21:04,693 INFO L85 PathProgramCache]: Analyzing trace with hash 94500, now seen corresponding path program 1 times [2024-10-11 18:21:04,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 18:21:04,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838420410] [2024-10-11 18:21:04,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 18:21:04,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 18:21:04,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 18:21:04,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 18:21:04,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 18:21:04,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [838420410] [2024-10-11 18:21:04,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [838420410] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 18:21:04,940 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 18:21:04,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-11 18:21:04,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693063556] [2024-10-11 18:21:04,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 18:21:04,947 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 18:21:04,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 18:21:04,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 18:21:04,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 18:21:04,980 INFO L87 Difference]: Start difference. First operand has 21 states, 14 states have (on average 1.9285714285714286) internal successors, (27), 20 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) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 18:21:05,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 18:21:05,023 INFO L93 Difference]: Finished difference Result 18 states and 20 transitions. [2024-10-11 18:21:05,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 18:21:05,025 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2024-10-11 18:21:05,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 18:21:05,032 INFO L225 Difference]: With dead ends: 18 [2024-10-11 18:21:05,033 INFO L226 Difference]: Without dead ends: 17 [2024-10-11 18:21:05,035 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 18:21:05,039 INFO L432 NwaCegarLoop]: 11 mSDtfsCounter, 13 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 18:21:05,040 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 11 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 18:21:05,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2024-10-11 18:21:05,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2024-10-11 18:21:05,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 16 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 18:21:05,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions. [2024-10-11 18:21:05,078 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 3 [2024-10-11 18:21:05,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 18:21:05,079 INFO L471 AbstractCegarLoop]: Abstraction has 17 states and 19 transitions. [2024-10-11 18:21:05,079 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 18:21:05,081 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2024-10-11 18:21:05,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-10-11 18:21:05,081 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 18:21:05,082 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-10-11 18:21:05,082 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 18:21:05,082 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 3 more)] === [2024-10-11 18:21:05,083 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 18:21:05,084 INFO L85 PathProgramCache]: Analyzing trace with hash 94501, now seen corresponding path program 1 times [2024-10-11 18:21:05,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 18:21:05,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845449857] [2024-10-11 18:21:05,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 18:21:05,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 18:21:05,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 18:21:05,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 18:21:05,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 18:21:05,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1845449857] [2024-10-11 18:21:05,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1845449857] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 18:21:05,277 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 18:21:05,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-11 18:21:05,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383475666] [2024-10-11 18:21:05,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 18:21:05,279 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 18:21:05,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 18:21:05,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 18:21:05,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 18:21:05,284 INFO L87 Difference]: Start difference. First operand 17 states and 19 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 18:21:05,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 18:21:05,319 INFO L93 Difference]: Finished difference Result 19 states and 21 transitions. [2024-10-11 18:21:05,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 18:21:05,320 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2024-10-11 18:21:05,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 18:21:05,321 INFO L225 Difference]: With dead ends: 19 [2024-10-11 18:21:05,321 INFO L226 Difference]: Without dead ends: 19 [2024-10-11 18:21:05,322 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 18:21:05,323 INFO L432 NwaCegarLoop]: 14 mSDtfsCounter, 0 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 18:21:05,325 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 20 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 18:21:05,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2024-10-11 18:21:05,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2024-10-11 18:21:05,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 15 states have (on average 1.4) internal successors, (21), 18 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 18:21:05,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2024-10-11 18:21:05,333 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 3 [2024-10-11 18:21:05,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 18:21:05,333 INFO L471 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2024-10-11 18:21:05,334 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 18:21:05,334 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2024-10-11 18:21:05,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-10-11 18:21:05,334 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 18:21:05,334 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1] [2024-10-11 18:21:05,334 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 18:21:05,335 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 3 more)] === [2024-10-11 18:21:05,335 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 18:21:05,335 INFO L85 PathProgramCache]: Analyzing trace with hash 90869600, now seen corresponding path program 1 times [2024-10-11 18:21:05,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 18:21:05,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580703156] [2024-10-11 18:21:05,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 18:21:05,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 18:21:05,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 18:21:05,546 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 18:21:05,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 18:21:05,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580703156] [2024-10-11 18:21:05,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [580703156] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 18:21:05,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [207099720] [2024-10-11 18:21:05,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 18:21:05,550 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 18:21:05,550 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 18:21:05,553 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 18:21:05,555 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-11 18:21:05,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 18:21:05,611 INFO L255 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-11 18:21:05,620 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 18:21:05,700 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-10-11 18:21:05,786 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 18:21:05,787 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 18:21:05,874 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 18:21:05,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [207099720] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 18:21:05,875 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 18:21:05,875 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 5 [2024-10-11 18:21:05,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328900817] [2024-10-11 18:21:05,876 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 18:21:05,876 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 18:21:05,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 18:21:05,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 18:21:05,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-10-11 18:21:05,884 INFO L87 Difference]: Start difference. First operand 19 states and 21 transitions. Second operand has 7 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 18:21:05,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 18:21:05,987 INFO L93 Difference]: Finished difference Result 25 states and 29 transitions. [2024-10-11 18:21:05,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 18:21:05,988 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 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 5 [2024-10-11 18:21:05,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 18:21:05,989 INFO L225 Difference]: With dead ends: 25 [2024-10-11 18:21:05,990 INFO L226 Difference]: Without dead ends: 25 [2024-10-11 18:21:05,990 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2024-10-11 18:21:05,992 INFO L432 NwaCegarLoop]: 11 mSDtfsCounter, 3 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 18:21:05,992 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 21 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 18:21:05,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2024-10-11 18:21:05,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2024-10-11 18:21:05,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 21 states have (on average 1.380952380952381) internal successors, (29), 24 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 18:21:05,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 29 transitions. [2024-10-11 18:21:05,999 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 29 transitions. Word has length 5 [2024-10-11 18:21:05,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 18:21:06,000 INFO L471 AbstractCegarLoop]: Abstraction has 25 states and 29 transitions. [2024-10-11 18:21:06,001 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 18:21:06,001 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 29 transitions. [2024-10-11 18:21:06,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-10-11 18:21:06,003 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 18:21:06,003 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1] [2024-10-11 18:21:06,025 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-10-11 18:21:06,203 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 18:21:06,204 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 3 more)] === [2024-10-11 18:21:06,205 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 18:21:06,205 INFO L85 PathProgramCache]: Analyzing trace with hash 1268533750, now seen corresponding path program 1 times [2024-10-11 18:21:06,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 18:21:06,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330737669] [2024-10-11 18:21:06,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 18:21:06,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 18:21:06,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 18:21:06,382 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-11 18:21:06,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 18:21:06,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330737669] [2024-10-11 18:21:06,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [330737669] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 18:21:06,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [637837086] [2024-10-11 18:21:06,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 18:21:06,383 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 18:21:06,383 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 18:21:06,387 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 18:21:06,406 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-11 18:21:06,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 18:21:06,465 INFO L255 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-11 18:21:06,466 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 18:21:06,508 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 18:21:06,510 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 18:21:06,555 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 18:21:06,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [637837086] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 18:21:06,557 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 18:21:06,557 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 4, 4] total 10 [2024-10-11 18:21:06,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348173267] [2024-10-11 18:21:06,561 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 18:21:06,562 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-11 18:21:06,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 18:21:06,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-11 18:21:06,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2024-10-11 18:21:06,563 INFO L87 Difference]: Start difference. First operand 25 states and 29 transitions. Second operand has 11 states, 11 states have (on average 2.0) internal successors, (22), 10 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 18:21:06,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 18:21:06,752 INFO L93 Difference]: Finished difference Result 52 states and 66 transitions. [2024-10-11 18:21:06,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 18:21:06,753 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.0) internal successors, (22), 10 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2024-10-11 18:21:06,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 18:21:06,755 INFO L225 Difference]: With dead ends: 52 [2024-10-11 18:21:06,757 INFO L226 Difference]: Without dead ends: 52 [2024-10-11 18:21:06,757 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=93, Invalid=147, Unknown=0, NotChecked=0, Total=240 [2024-10-11 18:21:06,758 INFO L432 NwaCegarLoop]: 9 mSDtfsCounter, 70 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 18:21:06,760 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 38 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 18:21:06,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2024-10-11 18:21:06,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 46. [2024-10-11 18:21:06,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 42 states have (on average 1.4285714285714286) internal successors, (60), 45 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 18:21:06,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 60 transitions. [2024-10-11 18:21:06,771 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 60 transitions. Word has length 8 [2024-10-11 18:21:06,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 18:21:06,772 INFO L471 AbstractCegarLoop]: Abstraction has 46 states and 60 transitions. [2024-10-11 18:21:06,772 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.0) internal successors, (22), 10 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 18:21:06,772 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 60 transitions. [2024-10-11 18:21:06,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-10-11 18:21:06,772 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 18:21:06,773 INFO L215 NwaCegarLoop]: trace histogram [5, 4, 1, 1] [2024-10-11 18:21:06,792 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-11 18:21:06,976 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 18:21:06,977 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 3 more)] === [2024-10-11 18:21:06,978 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 18:21:06,978 INFO L85 PathProgramCache]: Analyzing trace with hash -426190447, now seen corresponding path program 2 times [2024-10-11 18:21:06,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 18:21:06,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122586443] [2024-10-11 18:21:06,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 18:21:06,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 18:21:07,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 18:21:07,221 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 18:21:07,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 18:21:07,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122586443] [2024-10-11 18:21:07,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1122586443] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 18:21:07,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [238517417] [2024-10-11 18:21:07,222 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-11 18:21:07,222 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 18:21:07,222 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 18:21:07,225 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 18:21:07,228 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-11 18:21:07,283 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-11 18:21:07,283 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 18:21:07,284 INFO L255 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-10-11 18:21:07,286 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 18:21:07,304 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-10-11 18:21:07,500 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 18:21:07,502 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 18:21:07,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [238517417] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 18:21:07,503 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 18:21:07,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 11 [2024-10-11 18:21:07,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793507887] [2024-10-11 18:21:07,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 18:21:07,504 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-11 18:21:07,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 18:21:07,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-11 18:21:07,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2024-10-11 18:21:07,509 INFO L87 Difference]: Start difference. First operand 46 states and 60 transitions. Second operand has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 18:21:07,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 18:21:07,580 INFO L93 Difference]: Finished difference Result 45 states and 58 transitions. [2024-10-11 18:21:07,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 18:21:07,580 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2024-10-11 18:21:07,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 18:21:07,581 INFO L225 Difference]: With dead ends: 45 [2024-10-11 18:21:07,581 INFO L226 Difference]: Without dead ends: 45 [2024-10-11 18:21:07,582 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2024-10-11 18:21:07,582 INFO L432 NwaCegarLoop]: 12 mSDtfsCounter, 0 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 18:21:07,583 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 24 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 18:21:07,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2024-10-11 18:21:07,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2024-10-11 18:21:07,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 42 states have (on average 1.380952380952381) internal successors, (58), 44 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 18:21:07,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 58 transitions. [2024-10-11 18:21:07,593 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 58 transitions. Word has length 11 [2024-10-11 18:21:07,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 18:21:07,593 INFO L471 AbstractCegarLoop]: Abstraction has 45 states and 58 transitions. [2024-10-11 18:21:07,593 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 18:21:07,593 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 58 transitions. [2024-10-11 18:21:07,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-10-11 18:21:07,594 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 18:21:07,594 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 18:21:07,614 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-10-11 18:21:07,798 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 18:21:07,799 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 3 more)] === [2024-10-11 18:21:07,800 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 18:21:07,800 INFO L85 PathProgramCache]: Analyzing trace with hash -1710179574, now seen corresponding path program 1 times [2024-10-11 18:21:07,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 18:21:07,800 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471753897] [2024-10-11 18:21:07,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 18:21:07,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 18:21:07,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 18:21:07,931 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-11 18:21:07,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 18:21:07,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1471753897] [2024-10-11 18:21:07,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1471753897] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 18:21:07,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1391489610] [2024-10-11 18:21:07,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 18:21:07,933 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 18:21:07,933 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 18:21:07,934 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 18:21:07,935 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-11 18:21:07,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 18:21:07,992 INFO L255 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-11 18:21:07,994 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 18:21:08,060 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-11 18:21:08,060 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 18:21:08,186 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-11 18:21:08,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1391489610] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 18:21:08,186 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 18:21:08,186 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 16 [2024-10-11 18:21:08,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496230243] [2024-10-11 18:21:08,187 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 18:21:08,187 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-10-11 18:21:08,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 18:21:08,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-10-11 18:21:08,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=136, Unknown=0, NotChecked=0, Total=272 [2024-10-11 18:21:08,188 INFO L87 Difference]: Start difference. First operand 45 states and 58 transitions. Second operand has 17 states, 17 states have (on average 2.1176470588235294) internal successors, (36), 16 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 18:21:08,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 18:21:08,342 INFO L93 Difference]: Finished difference Result 99 states and 128 transitions. [2024-10-11 18:21:08,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-11 18:21:08,343 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.1176470588235294) internal successors, (36), 16 states have internal predecessors, (36), 0 states have call successors, (0), 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 19 [2024-10-11 18:21:08,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 18:21:08,344 INFO L225 Difference]: With dead ends: 99 [2024-10-11 18:21:08,344 INFO L226 Difference]: Without dead ends: 99 [2024-10-11 18:21:08,345 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=136, Invalid=136, Unknown=0, NotChecked=0, Total=272 [2024-10-11 18:21:08,345 INFO L432 NwaCegarLoop]: 10 mSDtfsCounter, 101 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 18:21:08,346 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 58 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 18:21:08,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2024-10-11 18:21:08,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 85. [2024-10-11 18:21:08,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 82 states have (on average 1.3902439024390243) internal successors, (114), 84 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 18:21:08,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 114 transitions. [2024-10-11 18:21:08,357 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 114 transitions. Word has length 19 [2024-10-11 18:21:08,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 18:21:08,358 INFO L471 AbstractCegarLoop]: Abstraction has 85 states and 114 transitions. [2024-10-11 18:21:08,358 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.1176470588235294) internal successors, (36), 16 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 18:21:08,358 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 114 transitions. [2024-10-11 18:21:08,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-10-11 18:21:08,360 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 18:21:08,360 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 18:21:08,377 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-10-11 18:21:08,560 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-10-11 18:21:08,561 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 3 more)] === [2024-10-11 18:21:08,561 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 18:21:08,561 INFO L85 PathProgramCache]: Analyzing trace with hash 834777058, now seen corresponding path program 2 times [2024-10-11 18:21:08,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 18:21:08,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211470474] [2024-10-11 18:21:08,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 18:21:08,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 18:21:08,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 18:21:08,906 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 0 proven. 196 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-11 18:21:08,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 18:21:08,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211470474] [2024-10-11 18:21:08,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [211470474] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 18:21:08,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1170135290] [2024-10-11 18:21:08,907 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-11 18:21:08,907 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 18:21:08,907 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 18:21:08,909 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 18:21:08,910 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-11 18:21:08,987 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-11 18:21:08,987 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 18:21:08,989 INFO L255 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-11 18:21:08,991 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 18:21:09,056 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 0 proven. 196 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-11 18:21:09,056 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 18:21:09,506 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 0 proven. 196 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-11 18:21:09,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1170135290] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 18:21:09,507 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 18:21:09,507 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 32 [2024-10-11 18:21:09,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003430475] [2024-10-11 18:21:09,507 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 18:21:09,508 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-10-11 18:21:09,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 18:21:09,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-10-11 18:21:09,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=528, Invalid=528, Unknown=0, NotChecked=0, Total=1056 [2024-10-11 18:21:09,510 INFO L87 Difference]: Start difference. First operand 85 states and 114 transitions. Second operand has 33 states, 33 states have (on average 2.0606060606060606) internal successors, (68), 32 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 18:21:09,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 18:21:09,846 INFO L93 Difference]: Finished difference Result 195 states and 256 transitions. [2024-10-11 18:21:09,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-10-11 18:21:09,846 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 2.0606060606060606) internal successors, (68), 32 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2024-10-11 18:21:09,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 18:21:09,849 INFO L225 Difference]: With dead ends: 195 [2024-10-11 18:21:09,849 INFO L226 Difference]: Without dead ends: 195 [2024-10-11 18:21:09,850 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=528, Invalid=528, Unknown=0, NotChecked=0, Total=1056 [2024-10-11 18:21:09,851 INFO L432 NwaCegarLoop]: 10 mSDtfsCounter, 356 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 136 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 356 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 136 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-11 18:21:09,851 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [356 Valid, 82 Invalid, 277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [136 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-11 18:21:09,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2024-10-11 18:21:09,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 165. [2024-10-11 18:21:09,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 162 states have (on average 1.3950617283950617) internal successors, (226), 164 states have internal predecessors, (226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 18:21:09,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 226 transitions. [2024-10-11 18:21:09,872 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 226 transitions. Word has length 35 [2024-10-11 18:21:09,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 18:21:09,873 INFO L471 AbstractCegarLoop]: Abstraction has 165 states and 226 transitions. [2024-10-11 18:21:09,873 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 2.0606060606060606) internal successors, (68), 32 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 18:21:09,873 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 226 transitions. [2024-10-11 18:21:09,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-10-11 18:21:09,877 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 18:21:09,877 INFO L215 NwaCegarLoop]: trace histogram [30, 30, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 18:21:09,899 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-10-11 18:21:10,081 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 18:21:10,081 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 3 more)] === [2024-10-11 18:21:10,082 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 18:21:10,082 INFO L85 PathProgramCache]: Analyzing trace with hash 88443282, now seen corresponding path program 3 times [2024-10-11 18:21:10,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 18:21:10,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617876786] [2024-10-11 18:21:10,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 18:21:10,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 18:21:10,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 18:21:11,237 INFO L134 CoverageAnalysis]: Checked inductivity of 901 backedges. 0 proven. 900 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-11 18:21:11,237 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 18:21:11,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1617876786] [2024-10-11 18:21:11,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1617876786] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 18:21:11,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [419518427] [2024-10-11 18:21:11,238 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-11 18:21:11,238 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 18:21:11,238 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 18:21:11,240 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 18:21:11,243 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-11 18:21:11,335 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-10-11 18:21:11,336 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 18:21:11,336 INFO L255 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-11 18:21:11,339 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 18:21:11,350 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-10-11 18:21:11,629 INFO L134 CoverageAnalysis]: Checked inductivity of 901 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 900 trivial. 0 not checked. [2024-10-11 18:21:11,630 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 18:21:11,979 INFO L134 CoverageAnalysis]: Checked inductivity of 901 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 900 trivial. 0 not checked. [2024-10-11 18:21:11,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [419518427] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 18:21:11,980 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 18:21:11,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 3, 3] total 38 [2024-10-11 18:21:11,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861618059] [2024-10-11 18:21:11,980 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 18:21:11,981 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2024-10-11 18:21:11,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 18:21:11,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2024-10-11 18:21:11,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=610, Invalid=872, Unknown=0, NotChecked=0, Total=1482 [2024-10-11 18:21:11,983 INFO L87 Difference]: Start difference. First operand 165 states and 226 transitions. Second operand has 39 states, 39 states have (on average 2.1794871794871793) internal successors, (85), 38 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 18:21:13,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 18:21:13,445 INFO L93 Difference]: Finished difference Result 211 states and 248 transitions. [2024-10-11 18:21:13,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-10-11 18:21:13,446 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 39 states have (on average 2.1794871794871793) internal successors, (85), 38 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2024-10-11 18:21:13,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 18:21:13,447 INFO L225 Difference]: With dead ends: 211 [2024-10-11 18:21:13,448 INFO L226 Difference]: Without dead ends: 211 [2024-10-11 18:21:13,450 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 775 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=1757, Invalid=3073, Unknown=0, NotChecked=0, Total=4830 [2024-10-11 18:21:13,451 INFO L432 NwaCegarLoop]: 9 mSDtfsCounter, 707 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 203 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 707 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 203 IncrementalHoareTripleChecker+Valid, 207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-11 18:21:13,451 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [707 Valid, 107 Invalid, 410 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [203 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-11 18:21:13,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2024-10-11 18:21:13,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 174. [2024-10-11 18:21:13,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 171 states have (on average 1.2222222222222223) internal successors, (209), 173 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 18:21:13,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 209 transitions. [2024-10-11 18:21:13,466 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 209 transitions. Word has length 67 [2024-10-11 18:21:13,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 18:21:13,466 INFO L471 AbstractCegarLoop]: Abstraction has 174 states and 209 transitions. [2024-10-11 18:21:13,466 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 39 states have (on average 2.1794871794871793) internal successors, (85), 38 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 18:21:13,466 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 209 transitions. [2024-10-11 18:21:13,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-10-11 18:21:13,470 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 18:21:13,470 INFO L215 NwaCegarLoop]: trace histogram [31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 18:21:13,490 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-10-11 18:21:13,671 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-10-11 18:21:13,671 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 3 more)] === [2024-10-11 18:21:13,672 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 18:21:13,672 INFO L85 PathProgramCache]: Analyzing trace with hash -1558061451, now seen corresponding path program 1 times [2024-10-11 18:21:13,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 18:21:13,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174573366] [2024-10-11 18:21:13,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 18:21:13,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 18:21:13,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 18:21:13,876 INFO L134 CoverageAnalysis]: Checked inductivity of 961 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 961 trivial. 0 not checked. [2024-10-11 18:21:13,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 18:21:13,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174573366] [2024-10-11 18:21:13,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [174573366] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 18:21:13,877 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 18:21:13,878 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 18:21:13,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272361559] [2024-10-11 18:21:13,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 18:21:13,878 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 18:21:13,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 18:21:13,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 18:21:13,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 18:21:13,879 INFO L87 Difference]: Start difference. First operand 174 states and 209 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 18:21:13,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 18:21:13,900 INFO L93 Difference]: Finished difference Result 171 states and 206 transitions. [2024-10-11 18:21:13,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 18:21:13,901 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2024-10-11 18:21:13,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 18:21:13,902 INFO L225 Difference]: With dead ends: 171 [2024-10-11 18:21:13,902 INFO L226 Difference]: Without dead ends: 171 [2024-10-11 18:21:13,902 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 18:21:13,904 INFO L432 NwaCegarLoop]: 6 mSDtfsCounter, 3 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 18:21:13,904 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 13 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 18:21:13,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2024-10-11 18:21:13,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 171. [2024-10-11 18:21:13,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 169 states have (on average 1.2189349112426036) internal successors, (206), 170 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 18:21:13,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 206 transitions. [2024-10-11 18:21:13,918 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 206 transitions. Word has length 71 [2024-10-11 18:21:13,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 18:21:13,919 INFO L471 AbstractCegarLoop]: Abstraction has 171 states and 206 transitions. [2024-10-11 18:21:13,919 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 18:21:13,919 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 206 transitions. [2024-10-11 18:21:13,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-10-11 18:21:13,920 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 18:21:13,920 INFO L215 NwaCegarLoop]: trace histogram [31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 18:21:13,920 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-11 18:21:13,920 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 3 more)] === [2024-10-11 18:21:13,921 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 18:21:13,921 INFO L85 PathProgramCache]: Analyzing trace with hash -1558072694, now seen corresponding path program 1 times [2024-10-11 18:21:13,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 18:21:13,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005426429] [2024-10-11 18:21:13,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 18:21:13,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 18:21:13,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 18:21:14,976 INFO L134 CoverageAnalysis]: Checked inductivity of 961 backedges. 0 proven. 961 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 18:21:14,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 18:21:14,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2005426429] [2024-10-11 18:21:14,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2005426429] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 18:21:14,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1406611512] [2024-10-11 18:21:14,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 18:21:14,977 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 18:21:14,978 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 18:21:14,979 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 18:21:14,982 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-11 18:21:15,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 18:21:15,110 INFO L255 TraceCheckSpWp]: Trace formula consists of 455 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-10-11 18:21:15,114 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 18:21:15,240 INFO L134 CoverageAnalysis]: Checked inductivity of 961 backedges. 0 proven. 961 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 18:21:15,241 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 18:21:16,522 INFO L134 CoverageAnalysis]: Checked inductivity of 961 backedges. 0 proven. 961 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 18:21:16,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1406611512] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 18:21:16,522 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 18:21:16,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33, 33] total 66 [2024-10-11 18:21:16,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76988811] [2024-10-11 18:21:16,526 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 18:21:16,526 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 67 states [2024-10-11 18:21:16,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 18:21:16,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2024-10-11 18:21:16,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2211, Invalid=2211, Unknown=0, NotChecked=0, Total=4422 [2024-10-11 18:21:16,531 INFO L87 Difference]: Start difference. First operand 171 states and 206 transitions. Second operand has 67 states, 67 states have (on average 2.0597014925373136) internal successors, (138), 66 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 18:21:17,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 18:21:17,361 INFO L93 Difference]: Finished difference Result 396 states and 493 transitions. [2024-10-11 18:21:17,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2024-10-11 18:21:17,362 INFO L78 Accepts]: Start accepts. Automaton has has 67 states, 67 states have (on average 2.0597014925373136) internal successors, (138), 66 states have internal predecessors, (138), 0 states have call successors, (0), 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 71 [2024-10-11 18:21:17,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 18:21:17,363 INFO L225 Difference]: With dead ends: 396 [2024-10-11 18:21:17,364 INFO L226 Difference]: Without dead ends: 396 [2024-10-11 18:21:17,365 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=2211, Invalid=2211, Unknown=0, NotChecked=0, Total=4422 [2024-10-11 18:21:17,366 INFO L432 NwaCegarLoop]: 8 mSDtfsCounter, 671 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 294 mSolverCounterSat, 258 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 671 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 258 IncrementalHoareTripleChecker+Valid, 294 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-11 18:21:17,366 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [671 Valid, 159 Invalid, 552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [258 Valid, 294 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-11 18:21:17,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 396 states. [2024-10-11 18:21:17,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 396 to 332. [2024-10-11 18:21:17,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 332 states, 330 states have (on average 1.3) internal successors, (429), 331 states have internal predecessors, (429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 18:21:17,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 429 transitions. [2024-10-11 18:21:17,379 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 429 transitions. Word has length 71 [2024-10-11 18:21:17,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 18:21:17,380 INFO L471 AbstractCegarLoop]: Abstraction has 332 states and 429 transitions. [2024-10-11 18:21:17,380 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 67 states, 67 states have (on average 2.0597014925373136) internal successors, (138), 66 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 18:21:17,380 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 429 transitions. [2024-10-11 18:21:17,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-10-11 18:21:17,382 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 18:21:17,382 INFO L215 NwaCegarLoop]: trace histogram [64, 64, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 18:21:17,400 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-10-11 18:21:17,582 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,8 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 18:21:17,583 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 3 more)] === [2024-10-11 18:21:17,583 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 18:21:17,584 INFO L85 PathProgramCache]: Analyzing trace with hash -764719451, now seen corresponding path program 2 times [2024-10-11 18:21:17,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 18:21:17,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885099514] [2024-10-11 18:21:17,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 18:21:17,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 18:21:17,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 18:21:21,073 INFO L134 CoverageAnalysis]: Checked inductivity of 4096 backedges. 0 proven. 4096 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 18:21:21,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 18:21:21,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [885099514] [2024-10-11 18:21:21,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [885099514] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 18:21:21,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1856211555] [2024-10-11 18:21:21,074 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-11 18:21:21,075 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 18:21:21,075 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 18:21:21,077 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 18:21:21,078 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-10-11 18:21:21,188 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-11 18:21:21,188 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 18:21:21,189 INFO L255 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-11 18:21:21,195 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 18:21:21,751 WARN L873 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~#A~0#1.base_18| Int)) (and (= |c_#valid| (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#A~0#1.base_18| 0)) (= (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#A~0#1.base_18|) 0))) is different from true [2024-10-11 18:21:21,753 INFO L134 CoverageAnalysis]: Checked inductivity of 4096 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4096 trivial. 0 not checked. [2024-10-11 18:21:21,753 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 18:21:21,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1856211555] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 18:21:21,753 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 18:21:21,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [66] total 68 [2024-10-11 18:21:21,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643063542] [2024-10-11 18:21:21,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 18:21:21,754 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 18:21:21,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 18:21:21,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 18:21:21,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2215, Invalid=2344, Unknown=1, NotChecked=132, Total=4692 [2024-10-11 18:21:21,756 INFO L87 Difference]: Start difference. First operand 332 states and 429 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 18:21:21,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 18:21:21,786 INFO L93 Difference]: Finished difference Result 331 states and 428 transitions. [2024-10-11 18:21:21,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 18:21:21,787 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2024-10-11 18:21:21,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 18:21:21,788 INFO L225 Difference]: With dead ends: 331 [2024-10-11 18:21:21,788 INFO L226 Difference]: Without dead ends: 327 [2024-10-11 18:21:21,789 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=2215, Invalid=2344, Unknown=1, NotChecked=132, Total=4692 [2024-10-11 18:21:21,794 INFO L432 NwaCegarLoop]: 8 mSDtfsCounter, 3 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 13 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 18:21:21,795 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 8 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 13 Unchecked, 0.0s Time] [2024-10-11 18:21:21,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2024-10-11 18:21:21,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 232. [2024-10-11 18:21:21,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 232 states, 231 states have (on average 1.0086580086580086) internal successors, (233), 231 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 18:21:21,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 233 transitions. [2024-10-11 18:21:21,809 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 233 transitions. Word has length 137 [2024-10-11 18:21:21,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 18:21:21,809 INFO L471 AbstractCegarLoop]: Abstraction has 232 states and 233 transitions. [2024-10-11 18:21:21,809 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 18:21:21,809 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 233 transitions. [2024-10-11 18:21:21,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2024-10-11 18:21:21,812 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 18:21:21,812 INFO L215 NwaCegarLoop]: trace histogram [64, 64, 33, 33, 33, 1, 1, 1, 1] [2024-10-11 18:21:21,829 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-10-11 18:21:22,012 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-10-11 18:21:22,013 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 3 more)] === [2024-10-11 18:21:22,014 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 18:21:22,014 INFO L85 PathProgramCache]: Analyzing trace with hash 1683050152, now seen corresponding path program 4 times [2024-10-11 18:21:22,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 18:21:22,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29830727] [2024-10-11 18:21:22,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 18:21:22,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 18:21:22,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 18:21:25,788 INFO L134 CoverageAnalysis]: Checked inductivity of 5713 backedges. 0 proven. 4096 refuted. 0 times theorem prover too weak. 1617 trivial. 0 not checked. [2024-10-11 18:21:25,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 18:21:25,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [29830727] [2024-10-11 18:21:25,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [29830727] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 18:21:25,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1550604702] [2024-10-11 18:21:25,789 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-10-11 18:21:25,789 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 18:21:25,789 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 18:21:25,791 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 18:21:25,793 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process